JP6576228B2 - Base member and light source device - Google Patents

Description

  The present invention relates to a base member on which an optical unit that emits laser light is mounted, and a light source device including the base member.

  In recent years, there has been a demand for higher brightness of projector devices in applications for digital cinema or large conference rooms, and for applications such as outdoor projection mapping for displaying images on a large screen. In digital cinema, the introduction of laser projectors equipped with laser light source devices has already begun, and expectations for high-intensity laser light sources are high. In general, since there is a limit to increasing the output of a single laser light emitting element, in such a high-intensity laser projector, the laser light from a plurality of laser light emitting elements is efficiently synthesized to obtain the light from the laser light source device. The output is increased.

  In such a laser light source device, it is important that the optical characteristics such as the optical axis, beam parallelism, and light distribution of the laser light emitting element are accurately controlled in the positional relationship between the plurality of laser light emitting elements and these optical components. is there. As a premise, it is a very important design element to secure positioning accuracy when fixing the laser light source device itself.

  As a specific example for accurately combining laser beams from a plurality of laser light emitting elements, a laser light emitting element and a collimator lens are fixed to a light source holding member, and a plurality of such light source holding members are fixed to a base member. A laser light source device has been proposed (see Patent Document 1).

JP2013-138086A

  In Patent Document 1, the base member can be fixed only on one side with respect to the attached member to which the base member is fixed. Therefore, there has been a demand for a base member that can be fixed to a member to be attached with high accuracy on two surfaces.

  The present invention has been made in view of the above, and an object of the present invention is to obtain a base member that can be accurately positioned with respect to a member to be mounted on any one of two contact surfaces.

  In order to solve the above-described problems and achieve the object, the present invention includes a first surface and a second surface that are parallel to each other as contact surfaces that are fixed to a member to be attached, and a recess formed in the first surface. A first positioning hole array having a circular positioning hole and a long positioning hole, and a second positioning hole and a second positioning hole having a circular positioning hole and a long positioning hole. And a positioning hole array. The present invention is characterized in that at least one positioning hole included in the first positioning hole row and the second positioning hole row does not penetrate between the first surface and the second surface.

  According to the present invention, there is an effect that any one of the two contact surfaces can be accurately positioned on the member to be attached.

The disassembled perspective view which shows the 1st assembly state of the positioning structure concerning Embodiment 1 of this invention. Sectional drawing which shows the 1st assembly state of the positioning structure concerning Embodiment 1. The disassembled perspective view which shows the 2nd assembly state of the positioning structure concerning Embodiment 1. FIG. Sectional drawing which shows the 2nd assembly state of the positioning structure concerning Embodiment 1. FIG. The perspective view of the light source device provided with the positioning structure of the 1st assembly state concerning Embodiment 2 of this invention. The disassembled perspective view of the light source device provided with the positioning structure of the 1st assembly state concerning Embodiment 2. FIG. Sectional drawing of the light source device provided with the positioning structure of the 1st assembly state concerning Embodiment 2. FIG. Another sectional view of the light source device provided with the positioning structure in the first assembled state according to the second embodiment. The perspective view of the light source device provided with the positioning structure of the 2nd assembly state concerning Embodiment 2. FIG. The disassembled perspective view of the light source device provided with the positioning structure of the 2nd assembly state concerning Embodiment 2. FIG. Sectional drawing of the light source device provided with the positioning structure of the 2nd assembly state concerning Embodiment 2. FIG. Sectional drawing of the light source device provided with the positioning structure of the 2nd assembly state concerning Embodiment 3 of this invention.

  Below, the base member and light source device concerning an embodiment of the invention are explained in detail based on a drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is an exploded perspective view showing a first assembled state of the positioning structure 1 according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view illustrating a first assembled state of the positioning structure 1 according to the first embodiment. The positioning structure 1 includes a base member 2 for mounting a unit such as an optical unit, which will be described later, and a mounted member 30 that fits the base member 2. The unit mounted on the base member 2 is not limited to the optical unit. The base member 2 includes an upper surface 21 that is a first surface parallel to each other and a lower surface 22 that is a second surface, which are contact surfaces fixed to the mounted member 30.

  Here, FIG. 1 shows an exploded perspective view in a state before fitting when the base member 2 is fitted to the mounted member 30 with the lower surface 22 of the base member 2 as a contact surface. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1 in a state in which the lower surface 22 of the base member 2 is fitted to the mounted member 30 with the lower surface 22 as a contact surface. The state shown in FIGS. 1 and 2 is referred to as a first assembled state.

  FIG. 3 is an exploded perspective view illustrating a second assembled state of the positioning structure 1 according to the first embodiment. FIG. 4 is a cross-sectional view illustrating a second assembled state of the positioning structure 1 according to the first embodiment. Here, FIG. 3 shows an exploded perspective view of the base member 2 before fitting when the base member 2 is fitted to the mounted member 30 with the upper surface 21 as a contact surface. FIG. 4 is a cross-sectional view taken along the line IV-IV in FIG. 3 in a state in which the upper surface 21 of the base member 2 is fitted to the mounted member 30 with the contact surface as the contact surface. The state shown in FIGS. 3 and 4 is referred to as a second assembled state.

  As shown in FIGS. 1 and 2, positioning holes 6 a and 6 b are recessed in the upper surface 21 of the base member 2. The positioning hole 6a is a circular positioning hole in which accuracy determined with respect to the diameter is secured, that is, a round hole. The positioning hole 6b is a long hole-shaped positioning hole in which the accuracy determined with respect to the width dimension is ensured, that is, a long hole. The combination of the positioning holes 6a and 6b is referred to as a first positioning hole row 6. For convenience of explanation, chamfered portions 2 c are provided at both ends of the upper surface 21 of the base member 2, and the upper surface 21 that is the first surface of the base member 2 and the lower surface 22 that is the second surface are distinguished. It is easy to understand. However, the upper surface 21 and the lower surface 22 are equivalent, and the chamfered portion 2 c may not be provided. For convenience, one is called the upper surface 21 and the other is called the lower surface 22.

  As shown in FIGS. 2 and 3, the base member 2 is also provided with positioning holes 7 a and 7 b on the lower surface 22 parallel to the upper surface 21. The positioning hole 7a is a round hole in which accuracy determined with respect to the diameter is secured. The positioning hole 7b is a long hole in which the accuracy determined with respect to the width dimension is ensured. The combination of the positioning holes 7a and 7b is referred to as a second positioning hole row 7. The positioning hole 6a and the positioning hole 7a are coaxially positioned, and the positioning hole 6b and the positioning hole 7b are coaxially positioned.

  As shown in FIGS. 1 and 2, positioning pins 31 and 32 are projected on the member 30 to be attached. As shown in FIG. 2, in the first assembled state, the positioning hole 7a of the base member 2 and the positioning pin 31 of the mounted member 30 are fitted, and at the same time, the positioning hole 7b of the base member 2 and the mounted member The 30 positioning pins 32 are fitted, and the base member 2 and the mounted member 30 are positioned. In such a positioned state, the base member 2 and the attached member 30 are fixed by means such as a screw or an adhesive (not shown). That is, in the first assembled state, the mounted member 30 and the second positioning hole row 7 are fitted.

  As shown in FIG. 4, in the second assembled state, the positioning hole 6a of the base member 2 and the positioning pin 31 of the mounted member 30 are fitted, and at the same time, the positioning hole 6b of the base member 2 and the mounted member The 30 positioning pins 32 are fitted, and the base member 2 and the mounted member 30 are positioned. In such a positioned state, the base member 2 and the attached member 30 are fixed by means such as a screw or an adhesive (not shown). That is, in the second assembled state, the mounted member 30 and the first positioning hole row 6 are fitted.

  Since the positioning holes 6a and 7a are round holes, they are formed by drilling, and the tip shape of the drill opened at 120 ° is also shown in FIGS. On the other hand, since the positioning holes 6b and 7b are elongated holes, they are formed by processing an end mill having a width dimension as a diameter while moving in the longitudinal direction of the elongated holes. However, the processing method of the positioning holes 6a, 7a, 6b and 7b is not limited to these.

  Specific dimensions of the base member 2 according to the first embodiment are a width W = 60 mm, a depth D = 22 mm, and a height H = 20 mm. Both the diameters of the positioning holes 6a and 7a and the width dimension of the positioning holes 6b and 7b are 3 mm. Therefore, when trying to penetrate the positioning holes 6a, 7a, 6b and 7b in the height H direction of the base member 2, it is necessary to process the depth close to seven times the diameter or width dimension. However, if machining with a depth exceeding 3 times the diameter or width dimension is performed, it is generally easy for the drill or end mill to run out. As a result, it is difficult to ensure the required accuracy of the diameter or width dimension of the positioning hole. Become. Therefore, in the base member 2 according to the first embodiment, the positioning holes 6a and 6b have a depth dimension of 6 mm, and the positioning holes 7a and 7b have a depth dimension of 5 mm. Both depth dimensions are the diameters of the positioning holes. Or it is 3 times or less of the width dimension. This makes it possible to ensure the required accuracy of the diameter or width dimension of the positioning holes 6a, 7a, 6b and 7b.

  The positioning pins 31 and 32 have a diameter of 3 mm and a height of 3 mm, respectively. The height dimension of the positioning pins 31 and 32 is required to be 1.5 times or less of the diameter in order to ensure the accuracy of the perpendicularity, and this requirement is satisfied. Further, due to the height dimension of the positioning pins 31 and 32, the depth dimension of the positioning holes 6a, 7a, 6b and 7b is sufficiently secured with respect to the positioning pins 31 and 32.

  In the base member 2 according to the first embodiment, positioning holes 6 a and 6 b are formed in the upper surface 21 of the upper surface 21 and the lower surface 22 parallel to each other, and positioning holes 7 a and 7 b are formed in the lower surface 22. If this is machined by drilling or drilling through an end mill from either side, shaft runout is likely to occur, with the result that accuracy may be insufficient. On the other hand, when processing the positioning holes 6a, 6b, 7a and 7b on the upper surface 21 and the lower surface 22 of the base member 2 according to the first embodiment which are parallel to each other, on the respective surfaces of the upper surface 21 and the lower surface 22 On the other hand, it is processed separately. In recent multi-axis machines, misalignment of holes on both sides of the parallel surface is not a problem, so positioning holes on both sides parallel to each other with higher accuracy than when drilling or drilling through an end mill. 6a, 6b, 7a and 7b can be formed.

  In the first embodiment, all the positioning holes of the first positioning hole row 6 and the second positioning hole row 7 do not penetrate the base member 2, that is, do not penetrate between the upper surface 21 and the lower surface 22. It was described as being a dimension. However, if at least one positioning hole does not penetrate the base member 2, the other positioning holes may penetrate. Drilling has less shaft runout than end milling. Therefore, if the accuracy of the circular positioning hole can be ensured by drilling, the circular positioning hole is formed if at least one long positioning hole does not penetrate the base member 2. The base member 2 may be passed through.

  As described above, in the base member 2 according to the first embodiment, the depths of the first positioning hole row 6 and the second positioning hole row 7 do not become too deep with respect to the hole diameter. Therefore, both the first positioning hole row 6 and the second positioning hole row 7 can be formed with high accuracy. As a result, the base member 2 can be accurately positioned with respect to the mounted member 30 on both the upper surface 21 and the lower surface 22.

Embodiment 2. FIG.
FIG. 5 is a perspective view of the light source device 10 provided with the positioning structure in the first assembly state according to the second embodiment of the present invention, and FIG. 6 shows the positioning in the first assembly state according to the second embodiment. It is a disassembled perspective view of the light source device 10 provided with the structure. FIG. 7 is a cross-sectional view of the light source device 10 including the positioning structure in the first assembly state according to the second embodiment. FIG. 8 is another cross-sectional view of the light source device 10 including the positioning structure in the first assembly state according to the second embodiment.

  The light source device 10 includes a base member 20 on which a plurality of optical units 5 that emit laser light are mounted, and a mounted member 300 that fits the base member 20. Here, FIG. 5 is a perspective view in a state where the lower surface 22 of the base member 20 is fitted to the mounted member 300 with the lower surface 22 of the base member 20 as a contact surface, and FIG. The disassembled perspective view in the state before fitting in the case of making it fit to the to-be-attached member 300 is shown. FIG. 7 is a cross-sectional view taken along line VII-VII in FIG. 8 is a cross-sectional view taken along line VIII-VIII in FIG.

  FIG. 9 is a perspective view of the light source device 10 ′ having the second assembly state positioning structure according to the second embodiment, and FIG. 10 shows the second assembly state positioning structure according to the second embodiment. It is a disassembled perspective view of light source device 10 'provided. FIG. 11 is a cross-sectional view of the light source device 10 ′ including the second assembled state positioning structure according to the second embodiment.

  The light source device 10 ′ includes a base member 20 on which a plurality of optical units 5 having laser light emitting elements 3 are mounted, and a member 301 to be attached that fits with the base member 20. In the second assembled state, the mounted member 301 is used instead of the mounted member 300 used in the first assembled state. Here, FIG. 9 is a perspective view in a state in which the upper surface 21 of the base member 20 is fitted to the attached member 301 with the upper surface 21 as a contact surface, and FIG. 10 shows the upper surface 21 of the base member 20 as the contact surface. The disassembled perspective view in the state before fitting in the case of making it fit to the to-be-attached member 301 is shown. 11 is a cross-sectional view taken along line XI-XI in FIG.

  FIG. 8 shows that four sets of optical units 5 are mounted along the cross section of the base member 20. In FIGS. 5 and 6, a total of eight sets of optical units 5 can be mounted on the base member 20 in combination with the four sets mounted in parallel with the four sets of optical units 5 in FIG. It is shown. However, the number of sets of the optical units 5 mounted on the base member 20 is not limited to this number.

  As shown in FIG. 8, the set of optical units 5 includes a single laser light emitting element 3 and a single collimator lens 4. The laser light emitting element 3 emits laser light at a predetermined divergence angle. The collimator lens 4 is a convex lens having a rotationally symmetric shape with respect to the optical axis of the laser light emitting element 3, and collimates the light emitted from the laser light emitting element 3.

  As shown in FIGS. 5 and 6, the base member 20 has positioning holes 8 a and 8 b recessed in the upper surface 21. The positioning hole 8a is a round hole in which the accuracy determined with respect to the diameter is secured. The positioning hole 8b is a long hole in which the accuracy determined with respect to the width dimension is ensured. The combination of the positioning holes 8a and 8b is referred to as a first positioning hole row 8. For convenience of explanation, chamfered portions 20 c are provided at both ends of the upper surface 21 of the base member 20, so that the distinction between the upper surface 21 and the lower surface 22 of the base member 20 is easy to understand.

  As shown in FIGS. 7 and 9, positioning holes 9 a and 9 b are also provided in the base member 20 on the lower surface 22 parallel to the upper surface 21. The positioning hole 9a is a round hole in which accuracy determined with respect to the diameter is secured. The positioning hole 9b is a long hole in which the accuracy determined with respect to the width dimension is ensured. The combination of the positioning holes 9a and 9b is referred to as a second positioning hole row 9. The positioning hole 8a and the positioning hole 9a are coaxially positioned, and the positioning hole 8b and the positioning hole 9b are coaxially positioned.

  As shown in FIG. 6 and FIG. 7, positioning pins 310 and 320 are projected on the mounted member 300. As shown in FIG. 7, in the first assembled state, the positioning hole 9a of the base member 20 and the positioning pin 310 of the mounted member 300 are fitted, and at the same time, the positioning hole 9b of the base member 20 and the mounted member are fitted. The positioning pins 320 of 300 are fitted, and the base member 20 and the mounted member 300 are positioned. The base member 20 and the member to be attached 300 are fixed by a plurality of screws 40 in the state of being positioned in this way. That is, in the first assembled state, the mounted member 300 and the second positioning hole row 9 are fitted.

  As shown in FIGS. 10 and 11, positioning pins 311 and 321 are projected on the member 301 to be attached. As shown in FIG. 11, in the second assembled state, the positioning hole 8a of the base member 20 and the positioning pin 311 of the mounted member 301 are fitted, and at the same time, the positioning hole 8b of the base member 20 and the mounted member are fitted. The positioning pins 321 of 301 are fitted, and the base member 20 and the mounted member 301 are positioned. The base member 20 and the member to be attached 301 are fixed by a plurality of screws 41 in such a positioned state. That is, in the second assembled state, the mounted member 301 and the first positioning hole row 8 are fitted.

  Here, the to-be-attached member 301 is formed with an open hole 35 penetrating as shown in FIGS. 10 and 11. In the second assembled state, the laser light from the optical unit 5 is emitted from the base member 20 toward the attached member 301. Accordingly, the laser light emitted from the optical unit 5 in the second assembled state shown in FIGS. 9 and 11 is taken into the projector through the opening hole 35.

  Specific dimensions of the base member 20 according to the second embodiment are a width W = 60 mm, a depth D = 22 mm, and a height H = 20 mm. Both the diameters of the positioning holes 8a and 9a and the width dimension of the positioning holes 8b and 9b are 3 mm. In the base member 20 according to the second embodiment, the positioning holes 8a and 8b have a depth dimension of 6 mm, and the positioning holes 9a and 9b have a depth dimension of 5 mm. In the same manner as described above, the diameter or width dimension of the positioning hole is three times or less. This makes it possible to ensure the required accuracy of the diameter or width dimension of the positioning holes 8a, 9a, 8b and 9b.

  Further, the positioning pins 310, 320, 311 and 321 have a diameter of 3 mm and a height of 3 mm, respectively, and the accuracy of the verticality is ensured. Further, the height dimension of the positioning pins 310, 320, 311 and 321 ensures sufficient depth dimensions of the positioning holes 8a, 9a, 8b and 9b with respect to the positioning pins 310, 320, 311 and 321. It will be.

  In the second embodiment, all the positioning holes of the first positioning hole row 8 and the second positioning hole row 9 do not penetrate the base member 20, that is, the depth does not penetrate between the upper surface 21 and the lower surface 22. It was described as being a dimension. However, if at least one positioning hole does not penetrate the base member 20, the other positioning holes may penetrate. If the accuracy of the circular positioning hole can be ensured by drilling, if the positioning hole of at least one elongated hole does not penetrate the base member 20, the base is formed when forming the circular positioning hole. The member 20 may be penetrated.

  As described above, in the base member 20 according to the second embodiment, the depths of the first positioning hole row 8 and the second positioning hole row 9 do not become too deep with respect to the hole diameter. Therefore, both the first positioning hole row 8 and the second positioning hole row 9 can be formed with high accuracy. As a result, it is possible to accurately position the base member 20 with respect to the attached member 300 or the attached member 301 on both the upper surface 21 and the lower surface 22.

  Further, in the base member 20 according to the second embodiment, since the processing depth of the positioning holes 8a, 9a, 8b, and 9b is shallow, the light source device 10 with good cooling efficiency can be obtained without reducing the heat capacity of the base member 20. Obtainable. As a result, the light source device 10 having a long lifetime can be obtained. Further, since the processing depth of the positioning holes 8a, 9a, 8b and 9b is shallow, the processing time can be shortened and the cost can be reduced.

Embodiment 3 FIG.
FIG. 12 is a cross-sectional view of the light source device 11 including the positioning structure in the second assembly state according to the third embodiment of the present invention. FIG. 12 is a cross-sectional view taken along line XI-XI in a state where the base member 20 and the mounted member 301 in FIG. 9 are replaced with the base member 23 and the mounted member 302 according to the third embodiment. The light source device 11 includes a base member 23 on which a plurality of optical units 5 having the laser light emitting elements 3 are mounted, and a mounted member 302 that fits with the base member 23.

  As shown in FIG. 12, positioning holes 8 c and 8 d are recessed in the upper surface 21 of the base member 23. The combination of the positioning holes 8c and 8d is referred to as a first positioning hole row 8 '. Further, positioning holes 9 c and 9 d are also recessed in the lower surface 22 parallel to the upper surface 21 of the base member 23. The combination of the positioning holes 9c and 9d is referred to as a second positioning hole row 9 '. The diameters, width dimensions and depth dimensions of the positioning holes 8c and 8d are the same as those of the positioning holes 8a and 8b of the second embodiment. The diameters, width dimensions, and depth dimensions of the positioning holes 9c and 9d are the same as those of the positioning holes 9a and 9b of the second embodiment. Chamfered portions 20 c are provided at both ends of the upper surface 21 of the base member 23. Further, positioning pins 312 and 322 are projected on the attached member 302. The positioning pins 312 and 322 have the same diameter and height as the positioning pins 311 and 321 of the second embodiment. An opening hole 35 is formed in the attached member 302.

  However, at least one of the positioning holes 8c and 8d on the upper surface 21 of the base member 23 according to the third embodiment is not coaxially positioned with any of the positioning holes 9c and 9d on the lower surface 22. That is, the positioning hole 8c and the positioning hole 9c are not coaxially positioned, or the positioning hole 8d and the positioning hole 9d are not coaxially positioned. Therefore, in FIG. 12, the pitch dimension p1 of the first positioning hole row 8 'is different from the pitch dimension p2 of the second positioning hole row 9'.

  Further, the positioning hole 8c and the positioning hole 9c may not be positioned coaxially, and the positioning hole 8d and the positioning hole 9d may not be positioned coaxially. Also in this case, the pitch dimension p1 of the first positioning hole row 8 ′ is different from the pitch dimension p2 of the second positioning hole row 9 ′, but the first positioning hole row 8 ′, If the second positioning hole row 9 ′ is shifted in parallel, the pitch dimension p1 of the first positioning hole row 8 ′ and the pitch dimension p2 of the second positioning hole row 9 ′ are the same. It doesn't matter.

  Also in the third embodiment, all the positioning holes of the first positioning hole row 8 ′ and the second positioning hole row 9 ′ do not penetrate the base member 23, that is, do not penetrate between the upper surface 21 and the lower surface 22. It was described as being a dimension. However, if at least one positioning hole does not penetrate the base member 23, the other positioning holes may penetrate. If the accuracy of the circular positioning hole can be ensured by drilling, if the positioning hole of at least one elongated hole does not penetrate the base member 23, the base is formed when forming the circular positioning hole. The member 23 may be penetrated.

  In addition, although the light source device 11 concerning Embodiment 3 was demonstrated using the 2nd assembly state above, of course, it can also be set as a 1st assembly state. In this case, if the pitch dimension p1 of the first positioning hole row 8 ′ is different from the pitch dimension p2 of the second positioning hole row 9 ′, the mounting pin 302 has a different positioning pin pitch size. A member will be used.

  As described above, in the light source device 11 according to the third embodiment, the positioning hole 8c and the positioning hole 9c do not need to be coaxial, and the positioning hole 8d and the positioning hole 9d need to be coaxial. Absent. Accordingly, the first positioning hole row 8 ′ and the second positioning hole row 9 ′ can be recessed at the optimum positions according to the respective situations of the upper surface 21 and the lower surface 22 of the base member 23. . As a result, it is possible to obtain the light source device 11 having a high degree of design freedom after obtaining the same effects as those of the first and second embodiments.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 1 Positioning structure 10, 10 ', 11 Light source device 2, 20, 23 Base member, 2c, 20c Chamfer part, 3 Laser light emitting element, 4 Collimator lens, 5 Optical unit, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 8c, 8d, 9c, 9d Positioning hole, 6, 8, 8 ′ First positioning hole row, 7, 9, 9 ′ Second positioning hole row, 21 Upper surface, 22 Lower surface, 30, 300, 301, 302 Mounted member, 31, 32, 310, 320, 311, 321, 312, 322 Positioning pin, 35 Open hole, 40, 41 Screw.

Claims (7)

A first surface and a second surface which are parallel to each other and serve as contact surfaces fixed to the mounted member;
A first positioning hole array recessed in the first surface and having a circular positioning hole and an elongated positioning hole;
A second positioning hole row recessed in the second surface and having a circular positioning hole and an elongated positioning hole;
With
The base member, wherein at least one positioning hole included in the first positioning hole row and the second positioning hole row does not penetrate between the first surface and the second surface. The depth dimension of at least one positioning hole included in the first positioning hole array and the second positioning hole array is not more than three times the diameter or width dimension of the positioning hole. The base member according to claim 1. The base according to claim 1 or 2, wherein at least one positioning hole in the first positioning hole row is not coaxially positioned with any of the positioning holes in the second positioning hole row. Element. An optical unit that emits laser light is mounted. The base member according to claim 1, 2, or 3. A light source device comprising the base member according to claim 4. The light source device according to claim 5, further comprising: a member to be attached that has a positioning pin that fits into the positioning hole and has a height that is 1.5 times or less the diameter. The light source device according to claim 5, further comprising: an attached hole having an opening hole through which the laser light emitted from the base member toward the attached member is passed.

Images