JP4728766B2 - Color wheel, color wheel device and projector device - Google Patents

Description

  The present invention relates to a color wheel that includes a plurality of color filters that convert irradiated light into different color lights in the circumferential direction, a color wheel device that includes the color wheel, and a projector device that includes the color wheel device.

  2. Description of the Related Art Conventionally, a projector device such as a projector having a DMD (Digital Micromirror Device (trade name)) transmits white light from a white light source through a rotating color wheel so that red (R), green (G), and blue (B) is time-divided into color lights, and each of these color lights is modulated based on an image signal or the like by DMD, and the light modulated color light is projected onto a screen or the like via a projection lens device as a projection optical system. Project to the surface.

  And the projection image on the projection surface is projected separately in time division for each color light, but by switching the projection of the projection image of each color light at high speed, by the afterimage effect of the human eye observing the projection image, It can be visually recognized as an image in which the colors of each color light are combined.

  The color wheel as described above has concentric arcs on the inner periphery and outer periphery, respectively, and a plurality of fan-shaped thin glass plates (segment plates) having the same thickness and radius, and these glass plates have the center of the arc. It is composed of a disk-shaped support plate, that is, a hub that is supported in a ring shape and arranged in the circumferential direction, and each glass plate is bonded to the support plate with an adhesive while the end surfaces in the radial direction are joined to each other. In addition to being fixed or bonded to the support plate, the edges in the radial direction of adjacent glass plates are bonded to each other with an adhesive.

  That is, the color wheel has a disk-shaped hub at the center thereof, and the surrounding glass plate surface is arranged in an annular shape, and has a thin disk shape as a whole.

  Each glass plate is formed with a filter surface on which a dielectric multilayer film is deposited in advance so as to transmit a predetermined color light from white light to form a color filter, and filter surfaces having different light transmission characteristics are adjacent to each other in the circumferential direction of the color wheel. It is arranged to do.

  In the color wheel device having such a color wheel, the hub is connected to the output part of the motor, and the filter surface is rotated at high speed so as to be sequentially inserted into the irradiation light from the light source. The light is modulated by different color lights in a time-division manner and emitted from the color wheel at a speed corresponding to the rotational speed of the color wheel and the width of the filter surface in the rotational direction.

  Since the color light needs to be switched at a high speed so that the observer does not know the color light switching and to obtain a better image quality, the rotation of the color wheel is from several thousand revolutions / minute to 10,000 revolutions / minute. Rotation speed exceeding 1 is required.

  On the other hand, the color wheel has a structure in which a plurality of fan-shaped glass plates are bonded or bonded together. Non-uniformity may occur, and vibration may occur when rotated at high speed, causing noise and image quality degradation.

  For this reason, conventionally, a motor equipped with a color wheel is installed in a rotation balance measuring device to measure the unbalance of the color wheel, and a part of the hub is cut to provide a recess, or a weight (balance Some materials balance the rotation of the color wheel by adding materials.

  However, such a color wheel device requires a man-hour for cutting a part of the hub or adding a weight, and the cutting amount of the hub or the added amount of the weight is caused by trial and error, that is, trial and error. Therefore, there is a problem that the number of work steps further increases.

Therefore, the container containing the curable liquid and the ball is rotated at a high speed integrally with the color wheel, and the rotation of the color wheel can be balanced by the flow of the curable liquid and the movement of the ball. A color wheel device that cures a liquid is known (for example, see Patent Document 1).
JP 2004-197922 (Page 5-7, Fig. 1-3)

  However, in the color wheel device described in Patent Document 1 described above, a micro wave caused by micro vibration generated by the rotation of the motor is generated on the fluid surface, and the position of the curable fluid is changed by the micro wave to the color wheel. There is a problem that it is difficult to stabilize the wheel at a position where the rotation balance of the wheel is sufficiently obtained.

  SUMMARY An advantage of some aspects of the invention is that it provides a color wheel that can easily achieve a rotation balance, a color wheel device including the color wheel, and a projector device including the color wheel device.

The color wheel according to claim 1 is provided with a plurality of color filters for converting irradiated light into different color lights in the circumferential direction, and a color wheel main body rotated by rotating means and a fluid are accommodated. An annular fluid storage portion that includes a space portion therein and is rotated integrally with the color wheel main body, and the space portion is divided into a plurality of storage chambers adjacent to each other in the rotation direction of the fluid storage portion, And a partition that enables fluid to flow between the storage chambers at least in a rotating state of the storage.

A partition portion is provided in a space portion in which the fluid of the fluid housing portion that rotates integrally with the color wheel main body is housed, and is partitioned into a plurality of housing chambers adjacent to each other in the rotation direction of the annular fluid housing portion. Thus, by allowing the fluid to come and go when the fluid containing portion rotates, the micro waves generated in the fluid when the fluid containing portion rotates due to the flow of fluid between these containing chambers are suppressed, and the rotation balance is easy To be taken.

  The color wheel according to claim 2 is the color wheel according to claim 1, wherein the partition portion is formed in a plate shape continuously provided on the outer side in the rotation direction of the fluid storage portion in the space portion, and the storage chamber. It has a traffic communication part that communicates between them.

  The partition portion is formed in a plate shape continuously provided on the outer side in the rotational direction of the fluid storage portion in the space portion, and the partition portion is provided with a forward communication portion to communicate between the storage chambers, thereby being accommodated in the space portion. Thus, the fluid can easily come and go between the storage chambers when the fluid storage portion rotates, and the rotation balance can be more easily achieved.

  A color wheel according to a third aspect is the color wheel according to the second aspect, wherein the traffic communicating portion is a hole portion whose opening amount is set according to the viscosity of the fluid accommodated in the fluid accommodating portion.

  And, by setting the opening amount of the communication part according to the viscosity of the fluid stored in the fluid storage part, the viscosity of the fluid stored in the fluid storage part can be freely selected, so the balancing operation is optimized. As a result, mass productivity is improved.

  The color wheel device according to claim 4 is a motor as a rotating means having an output unit for outputting rotation, and the color according to any one of claims 1 to 3 connected to the output unit and rotated by the motor. And a wheel.

  And productivity is improved by providing the color wheel as described in any one of Claim 1 thru | or 3 which can take a rotation balance easily.

  The projector device according to claim 5 modulates the light source, the color wheel device according to claim 4 that converts light emitted from the light source into a plurality of color lights, and the color light converted by the color wheel of the color wheel device. And a projection optical system for projecting the light modulated by the light modulation means.

  And by providing the color wheel apparatus of Claim 4 which can take the rotation balance of a color wheel easily, while improving manufacturability, the fall of an image quality, a noise, etc. are suppressed.

  According to the present invention, it is possible to easily balance the rotation.

  Hereinafter, the configuration of the first embodiment of the present invention will be described with reference to FIGS.

  In FIG. 6, reference numeral 1 denotes a projector apparatus. The projector apparatus 1 is a color wheel apparatus including a lamp 2 as a light source and a color wheel 3 that converts light emitted from the lamp 2 into each color light in a time-sharing manner. The color wheel unit 4, the illumination optical system 5 that uniformly guides the illuminance of each color light converted by the color wheel unit 4, and a display element as a light modulation unit that modulates the light guided by the illumination optical system 5, DMD (Digital Micromirror Device (trade name)) 6 that is a display device, and a projection lens device 7 that is a lens barrel as a projection optical system that projects a light beam modulated by the DMD 6 onto a screen (not shown) ing. The projector apparatus 1 includes an illumination optical system 5 and a DMD 6 attached to a frame body (not shown) as a main body, and is mounted in an exterior housing 8 together with the lamp 2, the color wheel unit 4, the projection lens apparatus 7, and the like. Contained.

  In the following, along the optical axis O of the light beam traveling from the lamp 2 to the screen, the screen side is the front side, the lamp 2 side is the rear side, and the left-right direction from the rear side to the front side of the optical axis O is the left-right direction. explain.

  The lamp 2 is an incandescent lamp such as a halogen lamp, or a discharge lamp such as an ultra-high pressure mercury lamp.

  As shown in FIGS. 1 and 2, the color wheel 3 includes a disk-shaped color wheel main body 11, and a fluid sealing tube 12 that is a tubular body as a fluid storage portion that is rotated integrally with the color wheel main body 11. It has.

  The color wheel main body 11 is, for example, a transmissive type. For example, the red (R), green (G), blue (B), and white (W) color filters 11r, 11g, 11b, and 11w are respectively concentric arcs. In the shape of a disk that is divided into fan shapes having the same thickness and radius on the inner periphery and outer periphery, and fixed in the circumferential direction of the disk-shaped support plate 11s with an adhesive such as an ultraviolet curable resin. Formed and disposed along a direction substantially orthogonal to the optical axis O.

  Each of the color filters 11r, 11g, 11b, and 11w is provided by, for example, a glass plate, and a dielectric multilayer film that transmits light in different wavelength ranges on the front surface or the back surface of the color filters 11r, 11g, and 11b. Is formed by vapor deposition.

  That is, the color filter 11r is formed with a dielectric multilayer film that transmits light in the red wavelength region with respect to white light emitted from the lamp 2. Similarly, the color filter 11g is formed with a dielectric multilayer film that transmits light in the green wavelength region with respect to white light emitted from the lamp 2, and the color filter 11b has a blue wavelength with respect to white light emitted from the lamp 2. A dielectric multilayer film that transmits light in the region is formed. The color filter 11w is a colorless and transparent filter that does not have a dielectric multilayer film and transmits light from the lamp 2 as it is.

  Here, the size of the central angle of each of the color filters 11r, 11g, 11b, and 11w is appropriately set according to the color tone of the projected image.

  Further, the support plate 11s is made of a metal such as a brass material or an aluminum material.

  On the other hand, the fluid sealing tube 12 is attached to the rear portion, that is, the back side of the color wheel main body 11, and is formed in an annular shape with a metal such as a brass material or an aluminum material, or a synthetic resin such as polycarbonate. As shown in FIG. 3, it has an annular tube body 15 and an enclosed tube lid 16 attached to the front of the tube body 15, and a space portion 17 is defined in the interior. A fluid L (FIG. 5) is contained or enclosed in the inside.

  The tube main body 15 includes an annular rear plate 15a serving as a rear side surface, an outer circumferential portion 15b projecting forward from an outer circumferential edge of the rear plate portion 15a, and an outer circumferential surface 15b serving as an outer circumferential surface. And an inner peripheral edge portion 15c that protrudes into the inner peripheral surface, and a groove portion 15d having an opening on the front side is defined by the rear plate portion 15a, the outer peripheral edge portion 15b, and the inner peripheral edge portion 15c. The inner peripheral edge portion 15c has an inner diameter dimension substantially equal to the outer diameter dimension of the support plate 11s of the color wheel main body 11.

  In addition, the sealed tube lid body 16 has a lid body hole portion 16a into which the rear portion of the support plate 11s is inserted at the center portion, and is formed on the peripheral portion of the groove portion 15d so as to liquid-tightly close the front opening of the groove portion 15d. On the other hand, it is bonded and fixed with an adhesive or the like. The lid hole portion 16a is formed to have an inner diameter dimension substantially equal to the outer diameter dimension of the support plate 11s, and the rear portion of the support plate 11s is substantially free of gaps with the fluid sealing tube 12 attached to the back side of the color wheel body 11. It is a size that fits.

  The space 17 is formed in an annularly sealed manner inside the fluid sealing tube 12 by closing the front opening of the groove 15d with the sealing tube lid body 16. Therefore, the fluid sealing tube 12 has a hollow annular shape having the space portion 17 in the state where the sealing tube lid body 16 is attached to the tube main body portion 15. In addition, as shown in FIG. 3, a partition plate 18 as a plurality of partition portions serving as a wave barrier is provided in the space portion 17, and the space portion 17 is divided into a plurality of storage chambers 19 by these partition plates 18. Divided into approximately equal parts.

  Here, as shown in FIGS. 4 and 5, each partition plate 18 is connected to the outer peripheral portion that is the outer portion in the rotational direction of the fluid sealing tube 12, that is, the outer peripheral edge portion 15b and the rear plate portion 15a. They are provided along the axial direction and are spaced apart from the inner peripheral edge portion 15c. Further, the partition plate 18 is formed to be continuous with the sealed tube lid body 16 on the front side, that is, on the upper side shown in FIGS. Further, a notch 21 is formed at the center in the front-rear direction of each partition plate 18 and is cut out in a substantially V shape from the inner peripheral edge 15c side to the outer peripheral edge 15b side. Each partition plate 18 is provided with a plurality of, for example, four round hole-like communication holes 22 which are holes serving as four-way communication parts.

  The notch 21 is notched so that the front side and the rear side are inclined toward the center position of the partition plate 18 in the front-rear direction. Therefore, the partition plate 18 is formed such that the front side and the rear side protrude toward the central axis side of the fluid sealing tube 12 as compared with the center position in the front-rear direction. Then, by this cutout portion 21, a hole portion 24 as a communication portion that communicates between the storage chambers 19 between the inner peripheral edge portion 15c, the rear plate portion 15a, the partition plate 18 and the enclosure tube lid body 16 of the fluid enclosure tube 12. Is formed. The hole 24 is formed so that the fluid L can come and go between the storage chambers 19 at the initial rotation of the fluid sealing tube 12. The inclination of the notch 21 is such that the fluid L sticks to the rear plate 15a, the outer peripheral edge 15b and the enclosed tube lid 16 when the color wheel 3 (FIG. 1) rotates at a predetermined rotational speed. The cross section of the fluid sealing tube 12 is rotated at a predetermined rotational speed and the fluid L is moved so as not to travel between the hole 24 and the storage chamber 19.

  Each communication hole 22 is formed in the vicinity of the outer peripheral edge portion 15b, that is, on the outer side in the rotational direction of the fluid sealing tube 12. In addition, the communication hole 22 positioned on the front side with respect to the center position in the front-rear direction of the fluid sealing tube 12 is inclined and arranged so that the front hole is positioned on the center side in the rotation direction of the fluid sealing tube 12. The communication holes 22 located on the rear side with respect to the center position in the front-rear direction of 12 are arranged so as to be located closer to the center side in the rotation direction of the fluid sealing tube 12 in the rear side.

  Further, the opening amount of each communication hole 22 is set according to the viscosity of the fluid L. For example, for the fluid L having a low viscosity, the communication hole 22 is made small (small) to increase the holding force of the fluid L in the storage chamber 19, and for the fluid L having a high viscosity, the communication hole 22 is made large. (Large) to facilitate the flow of the fluid L between the storage chambers 19.

  Each storage chamber 19 is partitioned into a fan shape by a pair of partition plates 18, 18, a rear plate portion 15 a, each peripheral edge portion 15 b, 15 c and an enclosure tube lid body 16, and is adjacent to each other in the rotation direction of the fluid enclosure tube 12. Yes.

  The fluid L is, for example, contained in the fluid sealing tube 12 in an amount less than half of the internal volume of the fluid sealing tube 12, and the rotation of the fluid sealing tube 12 causes the fluid L to flow in the space portion 17 by centrifugal force. The balance between the main body 11 and the fluid sealing tube 12 is balanced, and is, for example, a magnetic fluid. For example, before the front opening of the groove 15d is closed by the sealing tube lid 16, the groove 15d is injected in advance. . The type, amount, or mass of the fluid L is set as appropriate in consideration of the amount of rotational balance deviation between the color wheel body 11 and the fluid sealing tube 12, but at this time, the fluid L flows in the space portion 17. The space part 17 is accommodated so as to have a space so as to be possible.

  Returning to FIGS. 1 and 2, the color wheel unit 4 includes the color wheel main body 11 so that the color filters 11r, 11g, 11b, and 11w of the color wheel main body 11 sequentially hit the rays of the lamp 2 shown in FIG. Is provided in the exterior housing 8 so that the motor 28 is positioned on the rear side of the color wheel 3.

  The motor 28 is of a so-called outer rotor type in the present embodiment, and is a rotor 31 as an output portion that is a substantially cylindrical exterior body located at the outermost portion, and a rotating shaft inserted through the central portion of the rotor 31. 32 and a mounting plate 33 provided integrally with the rotary shaft 32.

  The rotor 31 is integrally attached to a side peripheral portion 35 as a main body provided in a cylindrical shape with, for example, an aluminum material, and a front end portion in the axial direction of the side peripheral portion 35 formed in a cylindrical shape with, for example, a brass material. And a front end portion 36. Further, a permanent magnet (not shown) is provided on the inner peripheral surface of the rotor 31, and this permanent magnet is provided integrally with the rotating shaft 32 and faces the outer peripheral surface of a coil (not shown) accommodated in the rotor 31. ing. The rotor 31 is supported by the mounting plate 33 by the rotary shaft 32 being press-fitted into the center hole 36a of the front end 36, and driven by the motor 28 with respect to the mounting plate 33 around the rotary shaft 32. It becomes a relatively rotating part.

  The front end portion 36 has an outer diameter that is substantially equal to the support plate 11s of the color wheel body 11, is inserted into the inner peripheral edge portion 15c of the fluid sealing tube 12, and contacts the rear surface of the support plate 11s without a substantial gap. In contact therewith, the inner peripheral edge portion 15c and the support plate 11s are integrally fixed by adhesion or the like.

  Further, the rotating shaft 32 is inserted into a shaft hole 37 formed in the center portion of the support plate 11s, the rear end side thereof is inserted into the coil, and is fixed to the mounting plate 33 via a shaft support portion 38. As a result, the rotor 31 and the color wheel 3 of the motor 28 are integrally fixed, and the rotor 31 and the color wheel 3 rotate integrally.

  The mounting portion 33 has a protruding portion 33a protruding in the radial direction with respect to the rotor 31, and a screw or the like (not shown) is inserted into a hole portion 33b formed in the protruding portion 33a to be screwed. 28 is fixed to the exterior casing 8 side shown in FIG.

  The coil is connected to a power supply unit or the like via a plurality of lead wires (not shown) and is supplied with power from the power supply unit.

  As shown in FIG. 6, the illumination optical system 5 equalizes and collects the illuminance of the light beams of each color light converted by the color wheel unit 4 and the lens unit 39 to collect the illuminance. Mirrors M1, M2 and the like for reflecting the emitted light beam to the DMD 6 are provided.

  The DMD 6 is a reflective element that modulates and reflects the light beam that has been illuminated by the illumination optical system 5 and is collected according to the processed video signal, such as a video signal processing circuit that processes the video signal. Implemented in electronic circuits. That is, the projector device 1 is a so-called reflection type.

  The projection lens device 7 includes a focus ring (not shown) for focus operation and a zoom ring for zoom operation, respectively, and is formed in a substantially cylindrical shape.

  Next, the operation of the first embodiment will be described.

  When the motor 28 is stopped, the fluid L is accumulated in the downward direction of gravity. When the motor 28 is driven and the color wheel body 11 and the fluid sealing tube 12 rotate together, the centrifugal force generated when the fluid L rotates. As a result, the outer peripheral edge portion 15b, the rear plate portion 15a, and the sealed tube lid body 16 are stuck together in the space 17 of the fluid sealed tube 12.

  In this state, when the rotation balance of the color wheel 3 is biased, the fluid L rotates eccentrically with the color wheel 3. That is, at the beginning of the rotation, the fluid L moves between the holes 24 and the accommodation chamber 19 and the balance is biased, so the color wheel 3 rotates in a state lacking the rotation balance.

  When the color wheel 3 rotates at a high speed via the rotor 31 due to the natural frequency of the motor 28, a sufficient centrifugal force is generated, and the fluid L in the space 17 is moved by the movement of the fluid L in the space 17. The color wheel 3 rotates in a state in which the deviation of is moved to the state opposite to the fluid mass and the rotation balance is achieved.

  At this time, in each storage chamber 19, most of the fluid L is prevented from moving to other storage chambers 19 by the partition plates 18, and adjacent storage chambers are provided from the respective communication holes 22 provided in these partition plates 18. A part of the fluid L comes and goes between the fluid 19 and the surface L wave of the fluid L caused by the minute vibration accompanying the rotation at the natural frequency of the motor 28 is suppressed.

  That is, according to the first embodiment, when the fluid sealing tube 12 is rotated integrally with the color wheel main body 11, the fluid L in the fluid sealing tube 12 moves so as to balance the rotation. Rotation balance compared to conventional color wheel devices that measure rotation balance by attaching a color wheel to a rotation balance measurement device, etc., and cut the color wheel etc. according to unbalance or add weight And the space 17 is partitioned into a plurality of storage chambers 19 adjacent to each other in the rotational direction of the fluid sealing tube 12 by the partition plate 18 and accommodated by the communication holes 22 provided in the partition plate 18. By configuring so that part of the fluid L can travel between the chambers 19, minute waves generated in the fluid L due to the natural frequency of the motor 28 when the color wheel 3 rotates are suppressed, and The rotation balance of the wheel 3 can be easily taken.

  Specifically, the communication holes 22 are formed on the outer peripheral edge 15b side of each partition plate 18 that divides the storage chamber 19, so that it moves to the outer peripheral edge 15b side by the centrifugal force generated when the color wheel 3 rotates. A part of the fluid L can be reliably transferred between the storage chambers 19 through the communication hole 22.

  Moreover, since the color wheel 3 is rotated at a high speed at a rotational speed exceeding several thousand revolutions / minute to 10,000 revolutions / minute when the projector apparatus 1 is used, the color wheel 3 is rotated in an unbalanced state at the initial stage of rotation. However, there is no problem in actual use of the projector device 1.

  Further, since the rotation balancing process of the color wheel 3 that has conventionally required skill is not required, work efficiency is expected to be improved, manufacturability can be improved, and manufacturing cost can be suppressed.

  Then, by providing a substantially V-shaped notch 21 at the substantially central portion of the partition plate 18 in the front-rear direction, when the amount of the fluid L accommodated in the fluid sealing tube 12 is large, the color wheel 3 is rotated. The fluid L can get over the notch 21 and come and go between the storage chambers 19, and the rotation balance of the color wheel 3 can be more easily achieved.

  In addition, for the fluid L having a low viscosity, the communication hole 22 is made small (small) to increase the holding force of the fluid L in the storage chamber 19, and for the fluid L having a high viscosity, the communication hole 22 is made large. The amount of the fluid L accommodated in the fluid sealing tube 12 can be set appropriately according to the viscosity of the fluid L, for example, by increasing the amount of the fluid L between the accommodation chambers 19 to increase and decreasing. Since the viscosity can be freely selected, the balancing operation of the color wheel 3 can be optimized and the mass productivity can be improved.

  Furthermore, by providing the color wheel unit 4 that can easily balance the rotation of the color wheel 3, it is possible to provide the projector device 1 that suppresses degradation of image quality and noise.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In this second embodiment, instead of the communication hole 22 of the first embodiment, a plurality of forward communication portions 41, which are punching plates having a plurality of small-diameter holes, are attached to the partition plate 18. It is what has been.

  These communication parts 41 are provided, for example, one on the front side and one on the rear side of the partition plate 18 at positions symmetrical with respect to each other, and are formed so as to be continuous with the outer peripheral edge part 15b.

  When the color wheel 3 rotates, a part of the fluid L passes between the storage chambers 19 adjacent to each other via the communication part 41 to suppress surface microwaves of the fluid L. By acting in the same manner as the communication hole 22 of the first embodiment, it is possible to achieve the same effects as the first embodiment.

  In addition, by providing a configuration in which the punching plate-shaped travel communication portion 41 having a large number of small-diameter holes drilled is attached to the partition plate 18, a plurality of travel communication portions 41 having different numbers of holes are prepared. By selecting these communication parts 41, various opening amounts can be easily adjusted.

  In the second embodiment described above, for example, as shown in FIG. 8, the same function and effect can be obtained even if the communication part 41 is provided closer to the center in the rotational direction than the outer peripheral edge part 15b. is there.

  Further, in each of the above embodiments, the configuration of the fluid sealing tube 12 and the like is limited to the above as long as a part of the fluid L can travel between the storage chambers 19 when the color wheel 3 rotates. It is not a thing.

  Furthermore, the motor 28 can have various configurations such as a so-called inner rotor type, and the color wheel 3 may be configured to be rotated by a rotating means other than the motor.

  The shape and configuration of the fluid sealing tube 12 can be rotated integrally with the color wheel main body 11 such that the color wheel main body 11 is also used as a lid that closes the opening of the groove 15d. Can be arbitrarily selected as long as the space portion 17 capable of accommodating the water is formed.

  In addition, if the number of the storage chambers 19 is too large, the movement of the fluid L is not smooth, and if the number is too small, the effect may not be sufficient. Therefore, the number of the partition plates 18 is appropriately set in consideration of the balance between the two. To do.

  Further, for example, when the fluid L is cured in a state where the color wheel 3 is balanced at the time of manufacturing, a transparent portion formed of, for example, a transparent resin material or the like is transmitted through at least a part of the fluid sealing tube 12. Form a possible notch, etc., and make the fluid L to be contained be a photo-curing resin such as an ultraviolet curable resin (UV adhesive), and rotate the color wheel body 11 and the fluid sealing tube 12 attached to the motor 28. By irradiating the fluid L with light from the outside of the fluid sealing tube 12 through the transparent portion and curing the fluid L in a rotationally balanced state, the rotationally balanced color wheel 3 can be easily obtained. Can be manufactured.

It is a disassembled perspective view which shows the color wheel apparatus provided with the color wheel of the 1st Embodiment of this invention. It is a side view which shows a color wheel apparatus same as the above. It is a front view which shows the fluid accommodating part of a color wheel same as the above. It is sectional drawing which shows a fluid accommodating part same as the above. It is sectional drawing which shows the rotation state of a fluid accommodating part same as the above. It is explanatory drawing which shows the projector apparatus provided with the color wheel apparatus same as the above. It is sectional drawing which shows the fluid accommodating part of the color wheel of the 2nd Embodiment of this invention. It is sectional drawing which shows the fluid accommodating part of other embodiment of a color wheel same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Projector apparatus 2 Lamp as light source 3 Color wheel 4 Color wheel unit as color wheel apparatus 6 DMD as light modulation means
7 Projection lens device as projection optical system
11 Color wheel body
11r, 11g, 11b, 11w color filter
12 Fluid enclosure as fluid reservoir
18 Partition plate as partition
19 containment room
22 Communication hole as a communication part
28 Motor as rotating means
41 Traffic communication part L Fluid

Claims (5)

A color wheel body that is provided with a plurality of color filters that divide the emitted light into different color lights in the circumferential direction, and that is rotated by a rotating means;
An annular fluid housing portion that includes a space portion in which fluid is housed and is rotated integrally with the color wheel body;
A partition portion that divides the space portion into a plurality of storage chambers adjacent to each other in the rotation direction of the fluid storage portion, and allows a fluid to flow between the storage chambers at least in a rotating state of the fluid storage portion; A color wheel characterized by comprising: The partition portion has a plate-like shape provided continuously to the outer side in the rotational direction of the fluid storage portion in the space portion, and includes a forward communication portion that communicates between the storage chambers. The color wheel according to 1. The color wheel according to claim 2, wherein the communication part is a hole in which an opening amount is set according to the viscosity of the fluid stored in the fluid storage part. A motor as a rotating means having an output unit for outputting rotation;
A color wheel device comprising: the color wheel according to claim 1 connected to the output unit and rotated by the motor. A light source;
The color wheel device according to claim 4, wherein the light emitted from the light source is converted into a plurality of color lights.
A light modulation means for modulating the color light converted by the color wheel of the color wheel device;
And a projection optical system for projecting light modulated by the light modulation means.

Images