JP6950285B2 - Manufacturing method of optical equipment - Google Patents

Description

The present invention relates to a method for manufacturing an optical device.

Patent Document 1 describes a housing having a rectangular frame in which a rod optical member is inserted above a head substrate in which a plurality of light emitting element array chips are linearly arranged in the main scanning direction. An arranged optical printer head is described.

JP-A-2002-225339

An object of the present invention is to obtain an optical device in which an optical member is attached to a housing by using an adhesive in a corrected state.

In the method for manufacturing an optical device according to the first aspect , in a state where a long housing having an optical member inserted in an opening is attached to a jig, a correction force is applied to the housing to obtain the housing. A straightening step of forming a housing straightening state for correcting the jig and an optical member straightening state for correcting the optical member with respect to the housing by applying a holding force to the housing from the lateral direction. And a fixing step of fixing the optical member to the housing with an adhesive in the state of correcting the optical member.

In the method of manufacturing the optical device of the second aspect, the straightening step forms the optical member straightening state after forming the housing straightening state.

In the method of manufacturing the optical device according to the third aspect, in the straightening step, after forming the housing straightening state, the straightening force is released, and then the optical member straightening state is formed.

In the method of manufacturing the optical device of the fourth aspect, the straightening step forms the optical member straightening state while maintaining the housing straightening state.

In the method for manufacturing an optical device according to a fifth aspect, in the straightening step, a pressing force generated by the straightening force and the holding force as a component force is applied to both side portions of the housing in the lateral direction, and the housing is corrected. And the optical member corrected state is formed.

In the method of manufacturing the optical device of the sixth aspect, in the straightening step, a pressing force is applied in a direction intersecting the inclined surfaces formed on both side portions of the housing to divide the straightening force and the holding force. Generate as a force.

In the method for manufacturing an optical device of the first aspect , it is possible to obtain an optical member attached to a housing by using an adhesive in a straightened state.

In the method of manufacturing the optical device of the second aspect , it is possible to suppress the correction failure of the optical member as compared with the case where the housing is sandwiched from the lateral direction in a state of being displaced from the jig.

In the method for manufacturing the optical device of the third aspect , it is possible to suppress the correction failure of the optical member with a small holding force as compared with the case where the correction force is not released after the housing correction state is formed.

In the method of manufacturing the optical device of the fourth aspect , the positional accuracy of the optical member with respect to the housing can be improved as compared with the case where the optical member straightening state is formed after the housing straightening state is released.

In the method for manufacturing the optical device according to the fifth aspect , the configuration can be simplified as compared with the case where the mechanism for forming the housing straightening state and the mechanism for forming the optical member straightening state are used.

In the method for manufacturing an optical device according to the sixth aspect , the configuration can be simplified as compared with the case where the housing is pushed diagonally.

It is a schematic block diagram which shows the image forming apparatus which concerns on 1st Embodiment. It is a perspective view which showed the exposure apparatus which concerns on 1st Embodiment. It is an exploded perspective view which showed the exposure apparatus which concerns on 1st Embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a side view which shows the manufacturing apparatus which concerns on 1st Embodiment. FIG. 5 is a cross-sectional view taken along the line BB of FIG. It is a perspective view which shows the manufacturing apparatus which concerns on 1st Embodiment. (A) is a side view showing a state in which the housing set on the jig is displaced, and (B) is a cross-sectional view taken along the line CC of FIG. 8 (A). (A) is a side view showing a state in which a warped housing is set on a jig, and (B) is a cross-sectional view taken along the line DD of FIG. 9 (A). It is explanatory drawing which shows the mode that the optical member is corrected in the housing where the deviation occurs and the housing with a warp. It is a side view which shows the housing correction state of the correction process which concerns on 1st Embodiment. It is sectional drawing which shows the state which filled with the adhesive in the housing which concerns on 1st Embodiment. It is a side view which shows the optical member straightening state of the straightening process which concerns on 1st Embodiment. It is explanatory drawing which shows the state which applied the sealing agent to the housing which concerns on 1st Embodiment, and attached the mounting board. It is explanatory drawing which shows the correction process which concerns on 2nd Embodiment. It is explanatory drawing which shows the correction process which concerns on 3rd Embodiment. It is explanatory drawing which shows the correction process which concerns on 4th Embodiment. It is explanatory drawing which shows the correction process which concerns on 5th Embodiment.

<First Embodiment>
Hereinafter, a method for manufacturing an optical device according to the first embodiment will be described with reference to FIGS. 1 to 14.

FIG. 1 is a schematic view showing an image forming apparatus 10 according to the present embodiment, and the image forming apparatus 10 is an apparatus for forming an image on a long medium. The arrow H shown in the figure indicates the device vertical direction (vertical direction), the arrow W indicates the device width direction (horizontal direction), and the arrow D indicates the device depth direction (horizontal direction).

(overall structure)
A transfer unit 32 is formed in the apparatus main body 10A of the image forming apparatus 10, and an endless belt-shaped intermediate transfer body is stretched on a plurality of rollers 12 and is circulated in the direction of arrow A by driving a motor (not shown). A belt 14 is provided.

The image forming apparatus 10 corresponds to the formation of a color image, and is an image forming unit that forms a toner image corresponding to four colors of yellow (Y), magenta (M), cyan (C), and black (K). 28Y, 28M, 28C, and 28K are arranged along the circumferential direction of the intermediate transfer body belt 14 and are detachably supported by the apparatus main body 10A.

The members provided for each color are indicated by adding an alphabet (Y / M / C / K) indicating each color to the end of the code, but when the explanation is given without distinguishing the colors, this is used. The explanation will be made by omitting the alphabet at the end.

[Image formation unit]
The image forming unit 28 includes an image holder 16 that is rotated clockwise by a driving means including a motor and a gear (not shown). Further, on the peripheral surface of the image holder 16, a charging roller 18 that uniformly charges the surface of the image holder 16 to a predetermined potential is arranged.

Further, on the downstream side of the charging roller 18 in the rotation direction of the image holder 16, an exposure device 20 that irradiates the image holder 16 with light to form an electrostatic latent image is provided in the axial direction of the image holder 16. It is extending. The exposure apparatus 20 forms an electrostatic latent image on the image holder 16 by irradiating the image holder 16 with a light beam according to the image data. The details of the exposure apparatus 20 will be described later.

Further, an electrostatic latent image formed on the image holder 16 is developed with toner of a predetermined color (yellow / magenta / cyan / black) on the downstream side of the exposure device 20 in the rotation direction of the image holder 16. A developing device 22 for forming a toner image is arranged.

[Transfer unit]
A transfer roller 30 constituting the transfer unit 32 is arranged on the downstream side of the developing device 22 in the rotation direction of the image holder 16 on the opposite side of the image holder 16 with the intermediate transfer body belt 14 interposed therebetween.

On the other hand, a transfer device 34 including two opposing rollers 34A and 34B is arranged on the downstream side of the image holder 16 of each color in the circumferential direction of the intermediate transfer body belt 14. Then, the sheet member P as a recording medium taken out from the paper tray 36 provided at the bottom of the image forming apparatus 10 and conveyed between the rollers 34A and 34B is formed on the intermediate transfer body belt 14. The final toner image is transferred.

[Fixing unit]
Further, a fixing device 40 is provided in the transport path of the sheet member P to which the final toner image is transferred. The sheet member P conveyed to the fixing device 40 is sandwiched and conveyed by the heating roller 40A and the pressure roller 40B, so that the toner on the sheet member P is melted and pressed against the sheet member P to be pressed against the sheet member P. Is fixed in.

(Action of the whole composition)
In this image forming apparatus 10, an image is formed as follows.

First, the charging roller 18 uniformly negatively charges the surface of the image holder 16 at a planned charging portion potential. Further, exposure is performed by the exposure apparatus 20 so that the image portion on the charged image holder 16 has a predetermined exposure portion potential, and an electrostatic latent image is formed on the image holder 16. Then, the electrostatic latent image on the rotating image holder 16 is visualized as a toner image by the developing device 22.

The visualized toner images of each color are sequentially transferred to the intermediate transfer body belt 14 by the electrostatic force of the transfer roller 30, and the final color toner image is formed on the intermediate transfer body belt 14.

This final toner image is sent between the rollers 34A and 34B provided in the transfer device 34. Then, this final toner image is transferred to the sheet member P which has been taken out from the paper tray 36 and conveyed between the rollers 34A and 34B.

Further, the toner image transferred to the sheet member P is fixed to the sheet member P by the fixing device 40, and the sheet member P is discharged to the outside of the device.

(Main part composition)
Next, the configuration of the exposure apparatus 20 will be described.

[Structure of exposure equipment]
As shown in FIGS. 2 and 3, the exposure apparatus 20 arranged below the image holder 16 is an LED print head extending in the depth direction D of the apparatus, and the exposure apparatus 20 is an example of an optical apparatus.

The exposure device 20 includes a housing 58, a mounting substrate 50 attached to the housing 58, and an optical member 54 fixed to the housing 58. As shown in FIG. 4, the optical member 54 is fixed to the housing 58 by the adhesive 82, and the surface of the adhesive 82 is covered with the sealing agent 84.

[Mounting board]
As shown in FIGS. 2 and 3, the mounting board 50 is a printed wiring board and extends in the device depth direction D. The mounting board 50 includes a board body 52, a light emitting diode array 62 composed of a plurality of light emitting diodes 62A mounted on the board body 52, and an electronic component 64 (see FIG. 4) mounted on the board body 52. ing.

The substrate main body 52 is arranged so that the plate surface faces in the vertical direction, and has a rectangular shape extending in the device depth direction D when viewed from above.

The light emitting diode 62A is an example of a light emitting element, and is mounted on the upper surface of the substrate main body 52 in a staggered manner so as to extend in the depth direction of the device.

As shown in FIG. 4, the electronic component 64 is mounted on the lower surface of the substrate main body 52, and the electronic component 64 controls the light emission of each light emitting diode 62A.

[Optical member]
The optical member 54 constitutes a lens array, and as shown in FIGS. 2 and 3, has a rectangular shape that is arranged above the mounting substrate 50 and extends in the depth direction D of the device. The optical member 54 includes a plurality of rod lenses 56 arranged in a staggered manner so as to extend in the depth direction D of the device, and light from the light emitting diode 62A of the light emitting diode array 62 transmits through the rod lens 56. ..

Further, in the present embodiment, in a free state in which the optical member 54 is not attached to the housing 58 and no load is applied, the optical member 54 is twisted as small as about 1.5 °. There is. The twist of the optical member 54 in this case is a deformation in which the optical member 54 changes so as to be tilted between one end and the other end of the optical member 54 in a cross section orthogonal to the longitudinal direction NH of the optical member 54. be. In each figure, the twist of the optical member 54 is omitted because the twist is small.

In this configuration, the rod lens 56 of the optical member 54 and the light emitting diode array 62 face each other with the optical member 54 and the mounting substrate 50 attached to the housing 58 described later. Further, the upper portion of the optical member 54 projects from the housing 58. Then, the light emitted from the light emitting diode 62A passes through the rod lens 56 and forms an image on the image holder 16 (see FIG. 1).

[Case]
The housing 58 is integrally formed of a resin material and is formed in a long shape extending in the depth direction D of the device. Further, as shown in FIGS. 3 and 4, the housing 58 has an opening 74 extending in the vertical direction extending in the depth direction D of the device, and the opening 74 is below the optical member 54. The side part is inserted. The housing 58 has a main body 70 to which the mounting board 50 is attached, and a lens holding portion 76 that holds the optical member 54.

As shown in FIG. 4, the opening 74 is provided in the insertion portion 74A into which the optical member 54 is inserted, the wide portion 74B provided below the insertion portion 74A and wider than the insertion portion 74A, and the lower portion of the wide portion 74B. It is provided with an open portion 74C that is wider than the wide portion 74B and is open downward. A step portion 70A is formed between the wide portion 74B and the open portion 74C, and the step portion 70A is fixed to the step portion 70A with an adhesive or the like (not shown) while the outer peripheral portion of the mounting substrate 50 is supported. There is.

The lens holding portion 76 is formed with an insertion portion 74A of the opening 74, and as shown in FIG. 3, a pair of inner wall surfaces 76A that sandwich the optical member 54 from the device width direction W. Further, the lens holding portion 76 is formed with a pair of outer wall surfaces 76B facing the outside (opposite side of the optical member 54) in the device width direction W. Further, the lens holding portion 76 is formed with an upward surface 76C facing upward.

As shown in FIGS. 2 and 3, a plurality of imparting portions 80 to which the adhesive 82 for attaching the optical member 54 to the housing 58 is applied are formed on the upward surface 76C.

Specifically, the granting portion 80 is formed so as to face the device width direction W with the opening 74 interposed therebetween, and a plurality of facing granting portions 80 are arranged at intervals in the device depth direction D. ing. Each of the imparting portions 80 has a tapered shape in which the upper portion is open.

In this configuration, in the state before the lower portion of the optical member 54 is inserted into the opening 74 of the housing 58 and the optical member 54 is attached to the housing 58, the inner wall surface 76A and the optics are in the device width direction W. There is a gap between the member 54 and the member 54 (see FIG. 12 in which the gap is exaggerated).

[Adhesive / Sealant]
The adhesive 82 is an ultraviolet curable adhesive. As shown in FIGS. 2 and 3, the adhesive 82 is filled in the applying portion 80 formed in the lens holding portion 76 of the housing 58. The adhesive 82 is attached to the housing 58 by adhering the optical member 54 in a free state and in a state where the shape of the twisted optical member 54 is corrected.

Here, "the optical member 54 is adhered to and attached to the housing 58 in a state where the shape of the optical member 54 in which the twist is generated is corrected" means that the restraint of the optical member 54 by the adhesive 82 is released. Then, the twist of the optical member 54 is reproduced. Specifically, when the optical member 54 attached to the housing 58 is removed from the housing 58, the flatness (JISB0419 1991) of the side surface 54A (see FIG. 3) of the optical member 54 facing the device width direction W is increased. It deteriorates by 0.05 or more, and the twist of the optical member 54 is reproduced.

As shown in FIG. 4, the sealing agent 84 is applied so as to seal between the optical member 54 and the housing 58. The sealing agent 84 prevents dust and the like from entering the inside of the exposure apparatus 20 from the outside of the exposure apparatus 20.

[Manufacturing equipment for exposure equipment]
Next, the manufacturing apparatus 100 of the exposure apparatus for manufacturing the exposure apparatus 20 will be described with reference to FIGS. 5 to 7.

The manufacturing apparatus 100 includes a jig 102 in which the exposure apparatus 20 is set. As shown in FIGS. 5 and 6, the manufacturing apparatus 100 applies a straightening force F1 to the housing 58 of the exposure apparatus 20 to correct the mounting state of the housing 58 on the jig 102. It has. Further, as shown in FIG. 7, the manufacturing apparatus 100 applies a holding force F2 for holding the housing 58 from the lateral direction TH to correct the mounting state of the optical member 54 on the housing 58. It is provided with a unit 106.

[jig]
As shown in FIGS. 5 to 7, the jig 102 includes a flat plate-shaped base 102A having a length longer than that of the exposure apparatus 20, a convex portion 102B projecting from the center of the base 102A, and a convex portion 102B. It has a plate-shaped extending portion 102C extending from the central portion.

As shown in FIG. 6, the convex portion 102B is formed in a size that can be fitted into the wide portion 74B in the opening 74 of the set housing 58. The upper surface 102D of the convex portion 102B constitutes a reference surface that defines the amount of insertion of the jig 102 into the housing 58 (position in the H direction in the vertical direction of the device) with the stepped portion 70A of the housing 58 in surface contact. .. That is, the convex portion 102B constitutes a reference for determining the insertion amount of the optical member 54 into the insertion portion 74A at the opening 74, and the extension amount of the extension portion 102C from the convex portion 102B is the step portion of the housing 58. The separation distance from 70A to the lower surface 54B of the optical member 54 is set to the same dimension as the defined value.

[Case correction part]
As shown in FIGS. 5 and 6, the housing straightening portions 104 are formed in a rectangular elongated shape, and are provided in pairs corresponding to the upward surfaces 76C on both sides of the opening 74 formed in the housing 58. ing. The lower surface 104A of each housing straightening portion 104 is formed of a flat surface, and is in surface contact with the upward surfaces 76C on both sides of the opening 74 to apply a straightening force F1.

The housing correction unit 104 is lifted and lowered by the lifting device 108, and the lifting device 108 is composed of a plurality of solenoids as an example. The elevating device 108 is connected to a control unit (not shown) and operates according to a control signal from the control unit.

The elevating device 108 has a housing straightening state 110 in which the housing straightening unit 104 is lowered and the upward surface 76C of the housing 58 is pressed downward by a straightening force F1 in response to a control signal from the control unit (see FIG. 11). , The housing straightening portion 104 is raised to form a housing straightening release state 112 separated from the upward surface 76C of the housing 58 (see FIGS. 5 and 6).

In the housing straightening state 110, as shown in FIG. 11, the housing straightening portion 104 presses the housing 58 downward and presses the step portion 70A of the housing 58 against the upper surface 102D of the convex portion 102B of the jig 102. The housing 58 is straightened with respect to the jig 102. As a result, the mounting state of the housing 58 on the jig 102 is corrected.

Examples of the correction of the mounting state of the housing 58 include correction of the mounting position and posture of the housing 58. As shown in FIG. 8 (an exaggerated view in which the housing 58 is displaced), when the housing 58 is attached to the jig 102 in a displaced state, the step portion 70A of the housing 58 covers the entire area. It is straightened so as to come into contact with the upper surface 102D of the convex portion 102B of the jig 102. Further, as the correction of the mounting state of the housing 58, correction of the shape of the housing 58 can be mentioned. For example, as shown in FIG. 9, when the housing 58 has a warp that curves upward, the step portion 70A of the housing 58 is brought into contact with the upper surface 102D of the convex portion 102B of the jig 102 over the entire area. And correct it so that there is no warp.

[Optical member straightening part]
As shown in FIG. 7, a pair of optical member straightening portions 106 are provided so as to extend in the device depth direction D and sandwich the outer wall surface 76B of the housing 58 from the device width direction W. Further, each of the optical member straightening portions 106 has a plurality of protruding portions 106A protruding toward the outer wall surface 76B side of the housing 58. The projecting portions 106A are spaced apart from each other in the device depth direction D, and are arranged at positions different from the granting portion 80 of the housing 58 in the device depth direction D.

The optical member straightening unit 106 is moved in the device width direction W by the moving device 114, and the moving device 114 is composed of a plurality of solenoids as an example. The mobile device 114 is connected to a control unit (not shown) and operates according to a control signal from the control unit.

The moving device 114 has an optical member straightening state 116 in which the pair of optical member straightening sections 106 are moved in a close direction in response to a control signal from the control unit (see FIG. 13), and a direction in which the pair of optical member straightening sections 106 are separated. The optical member correction release state 118 that has moved to is formed (see FIGS. 7 and 11).

In the optical member straightening state 116, the protruding portion 106A of the optical member straightening portion 106 presses the outer wall surface 76B of the lens holding portion 76 from both sides, sandwiches the optical member 54 via the housing 58, and holds the optical member 54 in the housing 58. Correct against. As a result, the mounting state of the optical member 54 is corrected.

Examples of the correction of the attached state of the optical member 54 include correction of the shape (twist) of the optical member 54. Further, as the correction of the mounting state of the optical member 54, correction of the mounting position of the optical member 54 for moving the optical member 54 to the center of the housing 58 can be mentioned.

On the other hand, in the optical member straightening release state 118, the protruding portions 106A of the pair of optical member straightening portions 106 are separated from the outer wall surface 76B.

[Manufacturing method of exposure equipment]
Next, a method of manufacturing the exposure apparatus for manufacturing the exposure apparatus 20 using the manufacturing apparatus 100 will be described. In the non-operating state of the manufacturing apparatus 100, the housing straightening unit 104 is in the housing straightening release state 112, and the optical member straightening unit 106 is in the optical member straightening release state 118. Further, as for the direction used in explaining the manufacturing method of the exposure apparatus, the direction used in the explanation of the exposure apparatus 20 is used.

First, as shown in FIG. 6, the housing 58 is attached to the jig 102, and the lower portion of the optical member 54 is inserted into the insertion portion 74A in the opening 78 of the housing 58. Specifically, the optical member 54 is inserted into the opening 78 so that the light passes through the rod lens 56 in the vertical direction of the device, and the lower surface 54B of the optical member 54 is placed on the top surface 102E of the extending portion 102C. Support in surface contact. In this state, the optical member 54 is not restrained with respect to the housing 58 and rattles with respect to the housing 58 in the device width direction W.

At this time, as shown in FIG. 8, the housing 58 may be attached to the jig 102 at an angle. In this case, as shown in FIG. 8B, the step portion 70A of the housing 58 is attached. It is in a state of floating from the upper surface 102D of the convex portion 102B of the jig 102.

Further, as shown in FIG. 9, when the housing 58 is warped upward, the step portion 70A of the housing 58 is the convex portion 102B of the jig 102 as shown in FIG. 9B. A part of the housing 58 is displaced from the upper surface 102D.

In such a state, when the optical member straightening section 106 is operated to bring the optical member straightening state 116 to the optical member straightening state 116, as shown in FIG. 10 (comparative example in which the housing straightening state 110 is not formed), the protruding portion of the optical member straightening section 106 The 106A may press a portion of the housing 58 other than the lens holding portion 76. In this case, the optical member 54 may be poorly corrected, or the protruding portion 106A of the optical member straightening portion 106 may be damaged.

Therefore, in the present embodiment, as shown in FIG. 11, in the straightening step, a straightening force F1 is applied to the housing 58 to form a housing straightening state 110 that straightens the housing 58 against the jig 102.

Specifically, the elevating device 108 lowers the housing straightening portion 104 and presses the upward surface 76C of the housing 58 downward, so that the step portion 70A of the housing 58 is a convex portion of the jig 102 over the entire area. A state of surface contact with the upper surface 102D of 102B is formed.

As a result, if the housing 58 is misaligned with respect to the jig 102, the misalignment can be corrected. Further, if the housing 58 is warped, it can be corrected so that the warp disappears.

Then, as shown in FIG. 12, the elevating device 108 raises the housing straightening portion 104 to form the housing straightening release state 112 separated from the upward surface 76C of the housing 58.

In this state, the adhesive 82 is applied to the applying portion 80, and the adhesive 82 is filled in the gap between the side surface 54A of the optical member 54 and the inner wall surface 76A of the housing 58.

Next, as shown in FIG. 13, a holding force F2 for holding the housing 58 from the lateral direction TH is applied to form an optical member straightening state 116 in which the 54 optical members are corrected with respect to the housing 58.

Specifically, the moving device 114 moves the pair of optical member straightening portions 106 in the approaching direction, and the protruding portions 106A of the pair of optical member straightening portions 106 press the outer wall surface 76B from both sides in the device width direction W. The mounting state is corrected by sandwiching the optical member 54 via the housing 58. As a result, the shape (twist) of the optical member 54 is corrected. Further, the optical member 54 is moved to the center of the housing 58 to correct the mounting position of the optical member 54.

In this state, the elevating device 108 lowers the housing straightening portion 104 again to press the upward surface 76C of the housing 58 downward, so that the housing 58 is simultaneously provided with the holding force F2 and the straightening force F1. Form. Then, in the fixing step, the control unit controls an irradiation member (not shown) to irradiate the adhesive 82 with ultraviolet rays to cure the adhesive 82. As a result, the optical member 54 is fixed to the housing 58 with the adhesive 82.

Here, in the present embodiment, the case where the optical member 54 is fixed to the housing 58 with the adhesive 82 in a state where the holding force F2 and the straightening force F1 are simultaneously applied to the housing 58 will be described, but the present invention is limited to this. It's not something. For example, when it is not necessary to fix the housing 58 with the correction force F1 applied to the housing 58, such as when correcting the deviation of the housing 58 with respect to the jig 102, only the correction force F1 is applied to the housing 58. In this state, the optical member 54 may be fixed to the housing 58 with the adhesive 82.

Next, the control unit controls the moving device 114 to move the pair of optical member straightening units 106 in a direction away from each other to form the optical member straightening release state 118, as shown in FIG. At this time, since the adhesive 82 has already been cured, the state in which the shape (twist) of the optical member 54 is corrected is maintained even if the holding force F2 from the optical member straightening portion 106 is released.

Then, the housing 58 to which the optical member 54 is attached is removed from the jig 102, and as shown in FIG. 14, a sealing agent 84 is applied between the optical member 54 and the housing 58 to coat the surface of the adhesive 82. Cover. As a result, the space between the optical member 54 and the housing 58 is sealed. Further, the outer peripheral side portion of the mounting board 50 is brought into contact with the step portion 70A of the housing 58, and the mounting board 50 is fixed to the housing 58 with the adhesive 120. As a result, the exposure apparatus 20 is manufactured.

(Action / effect)
The operation of this embodiment will be described.

In the exposure apparatus 20 manufactured in this way, the optical member 54 maintained in the optical member straightening state 116 is fixed to the housing 58 with the adhesive 82.

Therefore, it is possible to obtain the exposure apparatus 20 which is an example of the optical member attached to the housing 58 by using the adhesive 82 in the corrected state.

Further, in the straightening step, the optical member straightening state 116 is formed after the housing straightening state 110 is formed.

Therefore, it is possible to suppress the correction failure of the optical member 54 as compared with the case where the housing 58 is sandwiched from the lateral TH in a state of being displaced from the jig 102.

Then, in the straightening step, after the housing straightening state 110 is formed, the straightening force F1 is released, and then the optical member straightening state 116 is formed.

Therefore, as compared with the case where the housing 58 is sandwiched from the lateral TH in a state of being displaced from the jig 102, it is possible to suppress the correction failure of the optical member 54 and the damage of the jig and the like.

Further, as compared with the case where the housing straightening state 110 is formed after the optical member straightening state 116 is formed, for example, even if the optical member 54 is urged from the upper surface at the same time as the housing straightening state 110, the optical member 54 moves laterally. It is possible to suppress damage to the lens surface caused by the above. Further, as compared with the case where the straightening force F1 is not released after the housing straightening state 110 is formed, it is possible to suppress the straightening failure of the optical member 54 with a small holding force F2.

In the present embodiment, after the housing straightening state 110 is formed, the straightening force F1 is released and then the optical member straightening state 116 is formed, but the present invention is not limited to this. For example, the method for manufacturing the exposure apparatus according to the following embodiment may be used.

<Second embodiment>
FIG. 15 is a diagram showing a second embodiment, and the same or equivalent parts as those in the first embodiment are designated by the same reference numerals and description thereof will be omitted, and only different parts will be described.

The correction step of this embodiment is different from that of the first embodiment.

In the straightening step of the present embodiment, as shown in FIG. 15, the optical member straightening portion 106 keeps the housing 58 while maintaining the housing straightening state 110 in which the upward surface 76C of the housing 58 is pressed by the housing straightening portion 104. Is sandwiched from TH in the lateral direction to form the optical member straightening state 116.

Also in the present embodiment, the same effects as those in the first embodiment can be obtained except for the effects when the housing correction release state 112 is formed.

Further, the positional accuracy of the optical member 54 with respect to the housing 58 can be improved as compared with the case where the optical member straightening state 116 is formed after the housing straightening state 110 is released.

In the first and second embodiments, the housing straightening section 104 that is raised and lowered forms the housing straightening state 110, and the optical member straightening section 106 forms the optical member straightening state 116, but the present invention is limited to this. It is not something that is done. For example, the method for manufacturing the exposure apparatus according to the following embodiment may be used.

<Third Embodiment>
FIG. 16 is a diagram showing a third embodiment, and the same or equivalent parts as those in the first embodiment are designated by the same reference numerals and description thereof will be omitted, and only different parts will be described.

This embodiment is different from the first and second embodiments in that the straightening force F1 and the holding force F2 are simultaneously applied to the housing 58 by the same device in the straightening step.

As shown in FIG. 16, the manufacturing apparatus 100 according to the present embodiment is a pusher that simultaneously corrects the mounting state of the housing 58 to the jig 102 and the mounting state of the optical member 54 to the housing 58. It is equipped with 130.

Pushers 130 are provided on both sides of the lens holding portion 76 of the housing 58, and the pushers 130 are formed in the shape of a long plate extending in the length direction of the housing 58. One edge of the pusher 130 located on the housing 58 side is thinned toward the edge 130A, and the edge is rounded.

The pusher 130 is arranged to be inclined with respect to the outer wall surface 76B of the lens holding portion 76 of the housing 58 and the upper surface 70B of the main body 70, and the inclination angle of the outer wall surface 76B and the main body 70 with respect to the upper surface 70B is , As an example, it is set to 45 degrees.

The pusher 130 is moved by the drive device 132, and the drive device 132 is composed of a plurality of solenoids as an example. The drive device 132 is connected to a control unit (not shown) and operates according to a control signal from the control unit.

When the pusher 130 is moved toward the housing 58 by the drive device 132, the edge 130A hits the upper surface 70B of the main body 70 of the housing 58 and the outer wall surface 76B of the lens holding portion 76. Then, the pressing force F3 from the pusher 130 is generated as a component force of a correction force F1 for urging the housing 58 downward and a holding force F2 for holding the lens holding portion 76 of the housing 58 from the lateral direction TH. Let me. As a result, the housing straightening state 110 and the optical member straightening state 116 described above are formed.

Also in this embodiment, the same effects as those in the first embodiment can be obtained.

Further, by operating the pusher 130 to carry out the straightening step, the straightening force F1 and the holding force F2 are generated as component forces, and the housing straightening state 110 and the optical member straightening state 116 can be formed in one operation. ..

Therefore, the configuration can be simplified as compared with the case where the mechanism for forming the housing straightening state 110 and the mechanism for forming the optical member straightening state 116 are provided.

<Fourth Embodiment>
FIG. 17 is a diagram showing a fourth embodiment, and the same or equivalent parts as those in the third embodiment are designated by the same reference numerals and description thereof will be omitted, and only different parts will be described.

This embodiment is different from the second and third embodiments in that an inclined surface 140 is formed between the main body 70 of the housing 58 and the lens holding portion 76. Each pusher 130 applies a pressing force F3 from the lateral direction TH intersecting the corresponding inclined surfaces 140 formed on both sides of the housing 58 to generate a straightening force F1 and a holding force F2 as a component force.

Also in this embodiment, the same effects as those in the second embodiment can be obtained.

Further, in the present embodiment, as in the third embodiment, the configuration is simplified as compared with the case where the mechanism for forming the housing straightening state 110 and the mechanism for forming the optical member straightening state 116 are provided. Can be done.

<Fifth Embodiment>
FIG. 18 is a diagram showing a fifth embodiment, and the same or equivalent parts as those in the fourth embodiment are designated by the same reference numerals and description thereof will be omitted, and only different parts will be described.

In the present embodiment, the pressing direction by the pushers 130 is different from that in the fourth embodiment, and each pusher 130 presses from above to below intersecting the inclined surfaces 140 on both sides of the housing 58. F3 is added to generate a correction force F1 and a holding force F2 as a component force.

Also in this embodiment, the same effects as those in the first embodiment can be obtained.

Further, in the present embodiment, as in the fourth embodiment, the configuration is simplified as compared with the case where the mechanism for forming the housing straightening state 110 and the mechanism for forming the optical member straightening state 116 are provided. Can be done.

In each embodiment, the optical device is described as the exposure device 20, but the optical device may be a reading unit (for example, a Contact Image Sensor).

Further, in the first embodiment, the outer wall surface 76B of the housing 58 is sandwiched between the optical member straightening portions 106 having a plurality of protruding portions 106A, but the housing 58 is sandwiched between the optical member straightening portions 106 having no protruding portions 106A. You may.

Further, in the above embodiment, the optical member straightening state 116 is formed after the applying portion 80 of the housing 58 is filled with the adhesive 82, but after the optical member straightening state 116 is formed, the adhesive 82 is applied to the applying portion 80. May be filled.

54 Optical member 58 Housing 74 Opening 82 Adhesive 102 Jigger 104 Housing straightening part 106 Optical member straightening part 110 Housing straightening state 112 Housing straightening release state 116 Optical member straightening state 118 Optical member straightening release state 140 Inclined surface F1 Corrective force F2 Holding force

Claims (2)

A housing straightening state in which a long housing having an optical member inserted in an opening is attached to a jig, and a straightening force is applied to the housing to correct the housing with respect to the jig. , And a straightening step of forming an optical member straightening state in which a holding force for holding the housing from the lateral direction is applied to correct the optical member with respect to the housing.
A fixing step of fixing the optical member to the housing with an adhesive in the state of correcting the optical member, and
Have,
The straightening step is a method for manufacturing an optical device that forms the housing straightening state, then releases the straightening force, and then forms the optical member straightening state. A housing straightening state in which a long housing having an optical member inserted in an opening is attached to a jig, and a straightening force is applied to the housing to correct the housing with respect to the jig. , And a straightening step of forming an optical member straightening state in which a holding force for holding the housing from the lateral direction is applied to correct the optical member with respect to the housing.
A fixing step of fixing the optical member to the housing with an adhesive in the state of correcting the optical member, and
Have,
In the straightening step, the straightening force and the pressing force generated by the holding force as a component force are applied in a direction intersecting the inclined surfaces formed on both sides in the lateral direction of the housing to correct the housing. A method for manufacturing an optical device that forms a state and a corrected state of the optical member.

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