Support components, dichroism module, and projector

Abstract

The present invention provides support components, dichroism modules, and projectors that achieve reduced element costs, improved assembly stability and precision, and ease of assembly. [Solution] The support component 10 is used to fix a dichroic element, and the support component includes a main body 11, a first fixing part 12, a second fixing part 13, a first contact part 14, and a second contact part 15. The main body is a frame having a through hole 111 and has a first end 112 and a second end 113 that are opposite each other in the first axial direction. The first fixing part and the second fixing part extend outward from the first end and the second end of the main body along the first axial direction, respectively. The through hole is located between the first fixing part and the second fixing part. The first contact part and the second contact part are installed on the main body and extend from the inner wall of the main body to the through hole, and the first contact part and the second contact part have a first contact surface 141 and a second contact surface 151, respectively, and are located on the first reference surface P1 and the second reference surface P2, respectively, with an angle between the first reference surface and the second reference surface.

Description

Technical Field

[0001] The present invention relates to a support structure, and more particularly, to a support component, a dichroic module, and a projector.

Background Art

[0002] In a conventional projection device, light beams of different colors provided by a light-emitting module can be split and mixed by optical elements installed in the projection device. As a commonly used method, there is a method of installing a dichroic element in the propagation path of the light beam to perform splitting and mixing of light beams of different colors. For example, the light beam of the first color from the first light-emitting unit passes through the dichroic element, and the light beams of the second color and / or the third color from the second light-emitting unit and / or the third light-emitting unit are reflected by the dichroic element, the optical path is redirected (changed in direction), and these light beams can be combined into an illumination light beam by other optical elements. The illumination light beam propagates to the light valve module, is converted into an image light beam by a pixel element in the light valve module, and the image light beam propagates to the projection lens. Finally, the projection lens can project the image light beam outside the projection device to form a projected image.

[0003] The dichroic element can be designed as a single optical element and manufactured by coating. Since the monolithic dichroic element needs to reflect two different colors of light, the outer shape of the monolithic dichroic element is generally designed in a wedge shape. Therefore, when fixing the dichroic element to the base of the projection device, it is necessary to provide a groove in the base according to the outer shape of the dichroic element and fix the position of the monolithic dichroic element by inserting it into the groove. In order to match the wedge-shaped outer shape of the monolithic dichroic element, it is necessary to provide a wide groove corresponding to the relatively long side of the dichroic element and a narrow groove corresponding to the relatively short side of the dichroic element in the base.

[0004] Another approach involves designing a dichroic element as a combination of two optical elements, each of which reflects monochromatic light. Specifically, a first and second dichroic element are placed in the propagation path of the light beam, with the first and second elements configured to allow the light beam of the first color from the first light-emitting unit to pass through. The second dichroic element is placed between the first dichroic element and the second and / or third light-emitting units. The first dichroic element can reflect either the light beam of the second color or the light beam of the third color, and the second dichroic element can reflect the other of the light beam of the second color or the light beam of the third color. With this arrangement, the light beams of the three colors can be combined into an illumination beam by merging their optical paths.

[0005] However, in monolithic dichroism element architectures, while the groove-based fixing method has the advantages of structural stability and ease of assembly, the manufacturing cost of the elements themselves is high. If the projection device adopts a dichroism element architecture using a combination of two optical elements, the cost of the elements can be reduced, but due to the optical path design, an angle is required between the first and second dichroism elements. Therefore, when the first and second dichroism elements are installed on the base, the space between the two elements is too small, resulting in an incomplete fixing structure. This makes it impossible to achieve complete fixing over a large area, and the elements can only be fixed to the base in a small, localized area. As a result, the dichroism elements cannot be completely fixed, increasing the risk of them falling off. In addition, during assembly and fixing, the dichroism elements are prone to tipping over, making it difficult to meet the precision requirements of the optical design, and assembly is difficult, requiring the design of additional assembly jigs.

[0006] Furthermore, since this "Background Art" section is intended solely to aid in understanding the content of the present invention, the information disclosed in this section may include technologies not known to those skilled in the art. Therefore, the information disclosed in this "Background Art" section does not mean that such information, or the problems that one or more embodiments of the present invention aim to solve, were already well known to those skilled in the art prior to the filing of the present invention. [Overview of the project] [Problems that the invention aims to solve]

[0007] This invention aims to reduce element costs, improve assembly stability and precision, and facilitate assembly by fixing two dichroic elements to a support component through the design of the support component.

[0008] Other objectives and advantages of the present invention can be further understood from the technical features disclosed herein. [Means for solving the problem]

[0009] To achieve one, some, all, or other of the above-mentioned objectives, the present invention provides a support component for fixing two dichroic elements. The support component includes a main body, a first fixing part, a second fixing part, a first contact part, and a second contact part. The main body is a frame having a through hole. The main body has a first end and a second end that are opposite each other in the first axial direction. The first fixing part extends outward from the first end of the main body along the first axial direction. The second fixing part extends outward from the second end of the main body along the first axial direction, and the through hole is located between the first fixing part and the second fixing part. The first contact part is installed on the main body and extends from the inner wall of the main body to the through hole, and the first contact part has a first contact surface. The second contact part is installed on the main body and extends from the inner wall of the main body to the through hole, and the second contact part has a second contact surface. Of these, the first contact surface is located on the first reference surface, the second contact surface is located on the second reference surface, and there is an angle between the first and second reference surfaces.

[0010] To achieve one, some, all, or other of the above-mentioned objectives, the present invention further provides a dichroism module comprising the aforementioned support component, a first dichroism element, and a second dichroism element. The first dichroism element is mounted on the support component and contacts the first contact surface of the first contact portion. The second dichroism element is mounted on the support component and contacts the second contact surface of the second contact portion.

[0011] To achieve one, some, all, or other of the above-mentioned objectives, the present invention further provides a projector, which includes a lighting module, a light bulb module, and a projection lens. The lighting module is used to provide an illumination beam. The light bulb module is located in the propagation path of the illumination beam and is used to convert the illumination beam into an image beam. The projection lens is located in the propagation path of the image beam and is used to project the image beam outside the projector. The lighting module includes a base, a plurality of light-emitting elements, the aforementioned support component, a first dichroic element, and a second dichroic element. The base has a housing space. Each of the plurality of light-emitting elements is installed on the outer wall of the base, and the plurality of light-emitting elements are used to provide a first color beam, a second color beam, and a third color beam to the housing space. The aforementioned support component is installed in the housing space of the base, and the support component is installed in the base by a first fixing part and a second fixing part. The first dichroic element is installed on the support component, and the first dichroic element is in contact with the first contact surface of the first contact part. The second dichroism element is installed on a support component and contacts the second contact portion. The first dichroism element, the second dichroism element, and the support component form a dichroism module, which is located in the propagation paths of the first color luminous beam, the second color luminous beam, and the third color luminous beam, and the first color luminous beam, the second color luminous beam, and the third color luminous beam are formed into an illumination luminous beam by the dichroism module. [Effects of the Invention]

[0012] By providing a first contact surface for a first contact portion and a second contact surface for a second contact portion for two dichroism elements to contact in correspondence, when the two dichroism elements contact the first and second contact surfaces respectively, the first and second contact surfaces are located on a first and second reference surface having an angle between them, thus creating an angle between the two dichroism elements. This satisfies the requirements for optical path design, and by changing the design of the angle between the support components, the requirements for mold manufacturing can also be satisfied, making manufacturing easier and potentially improving accuracy. Furthermore, by designing the first and second contact portions, the contact area in which the two dichroism elements are fixed to the support component can be increased, thereby improving the stability of the fixation. In this invention, a dichroism module can be formed by supporting two dichroism elements using a support component, and the dichroism module can be easily assembled into the projector base by assembling the dichroism module into the projector. Additionally, the design of the first and second fixing portions of the support component can improve the accuracy of the assembly. [Brief explanation of the drawing]

[0013] [Figure 1] This is a three-dimensional view of the support component in the present invention. [Figure 2] This is a front view of the support component in the present invention. [Figure 3] This is a cross-sectional view AA of the support component in this invention. [Figure 4] This is an exploded view of the dichroism module in the present invention. [Figure 5] This is a front view of the dichroism module in the present invention. [Figure 6] Figure 5 is a cross-sectional view of the dichroism module at the bar of the BB. [Figure 7] This is a front view showing the combination of the support component and the second dichroism element in the present invention. [Figure 8] This is a top view of the projector according to the present invention. [Figure 9] This is a three-dimensional diagram of the lighting module in this invention. [Modes for carrying out the invention]

[0014] The above-mentioned and other technical details, features, functions, and effects of the present invention will become clearer through the detailed description of the following preferred embodiments based on the attached drawings. Note that the directional terms used in the following embodiments, such as up, down, left, right, front, and back, are merely directions as shown in the attached drawings. Therefore, the directional terms used are solely for illustrative purposes and not intended to limit the present invention.

[0015] Figure 1 is a three-dimensional view of the support component in the present invention. Figure 2 is a front view of the support component in the present invention. Figure 3 is a cross-sectional view AA (cross-sectional view along AA) of the support component in the present invention. An embodiment of the support component 10 in the present invention is shown in Figures 1, 2, and 3, and the support component 10 is used to fix two dichroic elements. The support component 10 includes a main body 11, a first fixing part 12, a second fixing part 13, a first contact part 14, and a second contact part 15. The main body 11 is a frame having a through hole 111. The main body 11 has a first end 112 and a second end 113 that are opposite each other in the first axis direction X. The first fixing part 12 extends outward from the first end 112 of the main body 11 along the first axis direction X. The second fixing part 13 extends outward from the second end 113 of the main body 11 along the first axis direction X, and the through hole 111 is located between the first fixing part 12 and the second fixing part 13. The first contact portion 14 is installed on the main body 11 and extends from the inner wall 114 of the main body 11 to the through hole 111. The first contact portion 14 has a first contact surface 141. The second contact portion 15 is installed on the main body 11 and extends from the inner wall 114 of the main body 11 to the through hole 111. The second contact portion 15 has a second contact surface 151. Of these, the first contact surface 141 is located on the first reference surface P1, the second contact surface 151 is located on the second reference surface P2, and there is an angle θ between the first reference surface P1 and the second reference surface P2. In one embodiment, the angle θ is between 6.3 degrees and 7.2 degrees, but is not limited thereto. In this embodiment, the first reference surface P1 and the second reference surface P2 are there to more clearly explain the relative relationship between the first contact surface 141 and the second contact surface 151. In reality, the first reference surface P1 and the second reference surface P2 are virtual surfaces, and the support component 10 in this invention does not include the first reference surface P1 and the second reference surface P2.

[0016] The first abutting portion 14 and the second abutting portion 15 can be used to make two dichroic elements abut corresponding to the first abutting surface 141 of the first abutting portion 14 and the second abutting surface 151 of the second abutting portion 15. Since the first abutting surface 141 and the second abutting surface 151 are respectively located on the first reference plane P1 and the second reference plane P2, and there is an included angle θ between the first reference plane P1 and the second reference plane P2, when the two dichroic elements abut on the first abutting surface 141 of the first abutting portion 14 and the second abutting surface 151 of the second abutting portion 15 respectively, there is also an included angle θ between the two dichroic elements. Therefore, by changing the design of the included angle θ of the support component 10, different optical path design needs can be easily satisfied. Compared with the design of the monolithic dichroic element in the prior art, the support component 10 in the present invention is easy to manufacture and has high precision. In addition, due to the design of the first abutting portion 14 and the second abutting portion 15, the contact area where the two dichroic elements are fixed to the support component 10 can be increased, so that the improvement of the fixing stability can also be achieved.

[0017] In this embodiment, the main body 11 is a rectangular frame, and there is a through hole 111 at the center of the frame. The first axial direction X corresponds to the long axis direction of the rectangle, and the second axial direction Y corresponds to the short axis direction of the rectangle. The through hole 111 penetrates the main body 11 along the direction perpendicular to the long axis and the short axis (for example, the third axial direction Z). Among them, the first axial direction X and the second axial direction Y are perpendicular to each other. In other embodiments, the main body 11 may be a frame of other shapes, that is, it is not limited to the above examples.

[0018] In one embodiment, the first abutting portion 14 defines a first opening 142 on the first reference plane P1, and the second abutting portion 15 defines a second opening 152 on the second reference plane P2. In one embodiment, the area of the first opening 142 is larger than the area of the second opening 152, and the first opening 142 and the second opening 152 are used to allow the light to enter and exit.

[0019] Specifically, the first contact portion 14 is a convex edge formed extending from the inner wall 114 of the main body 11 in the direction toward the through hole 111 along the first axis direction X. The second contact portion 15 is a convex edge formed extending from the inner wall 114 of the main body 11 in the direction toward the through hole 111 (partially along a direction with an angle θ relative to the first axis direction X, and partly along the direction of the second axis direction Y). The first contact surface 141 and the second contact surface 151 face the same direction (for example, the third axis direction Z). The first contact surface 141 of the first contact portion 14 surrounds at least a portion of the first opening 142, and the second contact surface 151 of the second contact portion 15 surrounds the second opening 152. The first contact surface 141 and part of the second contact surface 151 form a stepped structure. In this case, the length of the opening of the first opening 142 in the first axis direction X is greater than the length of the opening of the second opening 152 in the first axis direction X, and the width of the opening of the first opening 142 in the second axis direction Y is greater than the width of the opening of the second opening 152 in the second axis direction Y. In this embodiment, the two dichroic elements may have different sizes (dimensions), one of which is smaller in size than the first opening 142 and can be placed and made contact with the second contact surface 151 by the first opening 142 during installation, and the other dichroic element is larger in size than the first opening 142 and can be placed and made contact with the first contact surface 141 during installation.

[0020] In this way, when attaching the two dichroic elements to the support component 10, the element attachment process can be simplified by sequentially assembling the two dichroic elements to the support component 10 on the same side of the support component 10, but this is not limited to this. In other embodiments, the first contact surface 141 and the second contact surface 151 may both face away from each other in the third axis direction Z. In other embodiments, the first contact surface 141 may face the third axis direction Z and the second contact surface 151 may face away from the third axis direction Z, thereby allowing the two dichroic elements to be assembled from different sides of the support component 10 when they are attached to the support component 10.

[0021] In one embodiment, the connection point between the inner wall 114 near the first end 112 and the first contact surface 141 is the first connection point J1, the connection point between the inner wall 114 near the first end 112 and the second contact surface 151 is the second connection point J2, and there is a height H1 of the inner wall between the first connection point J1 and the second connection point J2.

[0022] In one embodiment, the support component 10 further includes a plurality of protrusions 16. The plurality of protrusions 16 are respectively installed on the main body 11 and protrude along the second axial direction Y from the inner wall 114 of the main body 11 toward the through hole 111. In the second axial direction Y, the height at which the plurality of protrusions 16 protrude from the inner wall 114 is the first protrusion height W1, and the height at which the second contact surface 151 of the second contact portion 15 protrudes from the inner wall 114 is the second protrusion height W2. Among them, the first protrusion height W1 is smaller than the second protrusion height W2. In this embodiment, each of the plurality of protrusions 16 is installed at a distance from each other.

[0023] In one embodiment, the plurality of protrusions 16 are respectively connected to the first contact portion 14, whereby the first contact portion 14 and the plurality of protrusions 16 together form a plurality of first adhesive filling surfaces 143 connected to the first contact surface 141 on the first reference surface P1, and the second contact portion 15 and the plurality of protrusions 16 together form a plurality of second adhesive filling surfaces 153 connected to the second contact surface 151 on the second reference surface P2. Among them, the first part of the first adhesive filling surface 143 is installed close to the first end 112, and the second part of the first adhesive filling surface 143 is installed close to the second end 113. The plurality of second adhesive filling surfaces 153 are located between the first part of the first adhesive filling surface 143 and the second part of the first adhesive filling surface 143.

[0024] Figure 4 is an exploded view of the dichroic module in the present invention. The embodiment of the dichroic module 20 in the present invention is as shown in Figure 4. The dichroic module 20 includes the above-mentioned support component 10, the first dichroic element 21 and the second dichroic element 22. The first dichroic element 21 is installed on the support component 10, and the first dichroic element 21 abuts against the first contact surface 141 of the first contact portion 14. The second dichroic element 22 is installed on the support component 10, and the second dichroic element 22 abuts against the second contact surface 151 of the second contact portion 15.

[0025] In one embodiment, the size of the second dichroism element 22 is smaller than the size of the first dichroism element 21, and the size of the second dichroism element 22 is smaller than the area of ​​the first aperture 142, while the size of the first dichroism element 21 is larger than the area of ​​the first aperture 142. In this way, when attaching the first dichroism element 21 and the second dichroism element 22 to the support component 10, the second dichroism element 22 is first made to contact the second contact surface 151 by passing through the first aperture 142 to the second contact surface 151, and then the first dichroism element 21 is attached so that the first dichroism element 21 contacts the first contact surface 141.

[0026] In one embodiment, the first dichroic element 21 and the second dichroic element 22 may be a dichroic mirror or a dichroic beam splitter, respectively, but are not limited to these.

[0027] Figure 5 is a front view of the dichroism module in the present invention. Figure 6 is a cross-sectional view of the dichroism module in Figure 5, along the BB (cross-sectional view along the BB). As shown in Figures 5 and 6, in one embodiment, the connection point between the inner wall 114 near the first end 112 and the first contact surface 141 is the first connection point J1, the connection point between the inner wall 114 near the first end 112 and the second contact surface 151 is the second connection point J2, there is an inner wall height H1 between the first connection point J1 and the second connection point J2, and the inner wall height H1 is greater than or equal to the height H2 of the second dichroism element 22. Specifically, the inner wall height H1 is greater than or equal to the height H2 of the second dichroism element 22, thereby ensuring a buffer height between the first dichroism element 21 and the second dichroism element 22. Therefore, contact between the first dichroism element 21 and the second dichroism element 22 can be avoided when they are attached to the support component 10. This is because, once the first dichroism element 21 and the second dichroism element 22 come into contact, when the support component 10 vibrates or shakes, the first dichroism element 21 and the second dichroism element 22 may collide with each other, potentially damaging both the first and second dichroism elements 21 and 22. The design of the support component 10 in this invention can prevent impact damage caused by vibration.

[0028] In one embodiment, the support component 10 further includes a plurality of protrusions 16. Each of the plurality of protrusions 16 is installed on the main body 11 and protrudes along a second axial direction Y from the inner wall 114 of the main body 11 toward the through hole 111. In the second axial direction Y, the first protrusion height W1 of the plurality of protrusions 16 protruding from the inner wall 114 is smaller than the second protrusion height W2 of the second contact surface 151 protruding from the inner wall 114 (see Figure 2).

[0029] In one embodiment, each of the multiple protrusions 16 is connected to a first contact portion 14, thereby forming a plurality of first adhesive-filled surfaces 143 that are connected to a first contact surface 141 on a first reference surface P1 together with the multiple protrusions 16, and the second contact portion 15, together with the multiple protrusions 16, forms a plurality of second adhesive-filled surfaces 153 that are connected to a second contact surface 151 on a second reference surface P2.

[0030] Figure 7 is a front view showing the combination of the support component and the second dichroic element in the present invention. As shown in Figures 5 and 7, in one embodiment, a plurality of first adhesive-filled surfaces 143, the first dichroic element 21, and the inner wall 114 of the main body 11 form a plurality of first adhesive-filled grooves 115, and the plurality of first adhesive-filled grooves 115 are used to fill with adhesive and fix the first dichroic element 21. A plurality of second adhesive-filled surfaces 153, the second dichroic element 22, and the inner wall 114 of the main body 11 form a plurality of second adhesive-filled grooves 116, and the plurality of second adhesive-filled grooves 116 are used to fill with adhesive and fix the second dichroic element 22.

[0031] Figure 8 is a top view of the projector in this invention. Figure 9 is a three-dimensional view of the lighting module in this invention. Of these, the first axis direction X, the second axis direction Y, and the third axis direction Z shown in Figures 8 and 9 are drawn based on the three axis directions of the support component 10. An embodiment of the projector 30 in this invention is shown in Figures 6, 8, and 9, and the projector 30 includes a lighting module 31, a light bulb module 32, and a projection lens 33. The lighting module 31 is used to provide an illumination luminous flux L1. The light bulb module 32 is located in the propagation path of the illumination luminous flux L1 and is used to convert the illumination luminous flux L1 into an image luminous flux L2. The projection lens 33 is located in the propagation path of the image luminous flux L2 and is used to project the image luminous flux L2 outside the projector 30.

[0032] In one embodiment, the light bulb module 32 includes at least one light bulb to convert the illumination luminous flux L1 into an image luminous flux L2. The light bulb is, for example, a reflective light modulator such as a DMD (digital micro-mirror device) or an LCOS (liquid-crystal-on-silicon panel). In other embodiments, the light bulb may be a transparent liquid crystal panel such as a transparent liquid crystal panel, an electro-optical modulator, a magneto-optical modulator, an acousto-optical modulator (AOM), or another type of spatial light modulator (SLM). The present invention is not limited to the form or type of light bulb.

[0033] In one embodiment, the projection lens 33 includes, for example, one lens or a combination of multiple optical lenses having refractive power, and includes various combinations of non-planar lenses such as biconcave lenses, biconvex lenses, concave-convex lenses, convex-concave lenses, plano-convex lenses, and plano-concave lenses. The present invention does not limit the form or type of the projection lens 33.

[0034] In one embodiment, the lighting module 31 includes a base 311 and a plurality of light-emitting elements 312. The base 311 has a housing space S. Each of the plurality of light-emitting elements 312 is provided on the outer wall of the base 311, and the plurality of light-emitting elements 312 are used to provide a luminous flux C1 of a first color, a luminous flux C2 of a second color, and a luminous flux C3 of a third color to the housing space S. A support component 10 is installed in the housing space S of the base 311, and the support component 10 is installed in the base 311 by a first fixing part 12 and a second fixing part 13. As described above, the first dichroic element 21 is installed on the support component 10 and the first dichroic element 21 is in contact with the first contact surface 141 of the first contact part 14. The second dichroic element 22 is installed on the support component 10 and the second dichroic element 22 is in contact with the second contact surface 151 of the second contact part 15. Of these, the first dichroism element 21, the second dichroism element 22, and the support component 10 form a dichroism module 20, which is located in the propagation paths of the first color luminous flux C1, the second color luminous flux C2, and the third color luminous flux C3. As a result, the first color luminous flux C1, the second color luminous flux C2, and the third color luminous flux C3 are formed by the dichroism module 20 to form an illumination luminous flux L1.

[0035] Specifically, the first fixing part 12 and the second fixing part 13 are used to allow the support component 10 to be attached to the base 311. In some embodiments, the first fixing part 12 and the second fixing part 13 may be convex edges extending outward from the first end 112 and the second end 113, respectively. In this embodiment, the first fixing part 12 and the second fixing part 13 may be rectangular convex edges, but the shape of the convex edges is not limited to this. Furthermore, by utilizing the design of the convex edges of the first fixing part 12 and the second fixing part 13 and designing grooves in the base 311 of the projector 30 that correspond to the geometric shape of the convex edges, the effect of fixing the dichroism module 20 can be achieved. Therefore, when assembling the dichroism module 20 and the base 311, the dichroism module 20 can be assembled to the base 311 along the second axis Y, with the first fixing part 12 and the second fixing part 13 respectively attached along the second axis Y, based on the grooves in the base 311 provided along the second axis Y. The support component 10 and the dichroism module 20 in this invention are not only easy to assemble, but also allow for improved assembly accuracy.

[0036] In one embodiment, the plurality of light-emitting elements 312 include a first light-emitting element 3121, a second light-emitting element 3122, and a third light-emitting element 3123, each providing a luminous flux C1 of a first color, a luminous flux C2 of a second color, and a luminous flux C3 of a third color, with the first dichroism element 21 positioned toward the third light-emitting element 3123 and the second dichroism element 22 positioned toward the first light-emitting element 3121 and the second light-emitting element 3122. Specifically, the first dichroism element 21 is positioned on the first side of the support component 10, which is close to the third light-emitting element 3123, and the second dichroism element 22 is positioned on the second side of the support component 10, which is close to the first light-emitting element 3121 and the second light-emitting element 3122, of which the second side and the first side are two opposing sides of the support component 10. The first light-emitting element 3121, the second light-emitting element 3122, and the third light-emitting element 3123 may each be solid-state light sources, for example, they may include one or more light-emitting diodes (LEDs), but are not limited thereto. In other embodiments, the first light-emitting element 3121, the second light-emitting element 3122, and the third light-emitting element 3123 may each be one or more laser diodes (LDs), one or more light-emitting diodes (LEDs), or a combination of laser diodes and light-emitting diodes.

[0037] In one embodiment, the first color luminous flux C1 may be a blue luminous flux, the second color luminous flux C2 may be a red luminous flux, and the third color luminous flux C3 may be a green luminous flux. In other embodiments, the first color luminous flux C1 may be a blue luminous flux, the second color luminous flux C2 may be a green luminous flux, and the third color luminous flux C3 may be a red luminous flux, but the embodiment is not limited to these.

[0038] In one embodiment, the first dichroism element 21 is used to reflect the first color luminous beam C1 and allow the third color luminous beam C3 to pass through, and the second dichroism element 22 is used to reflect the second color luminous beam C2 and allow the third color luminous beam C3 to pass through. Specifically, the third color luminous beam C3 is incident from the first side of the dichroism module 20 and passes through the dichroism module 20, while the first color luminous beam C1 and the second color luminous beam C2 are incident from the second side of the dichroism module 20 and reflected by the dichroism module 20. As a result, the optical paths of the first color luminous beam C1 and the second color luminous beam C2 are redirected, and the optical paths of the reflected first color luminous beam C1 and the reflected second color luminous beam C2 are merged with the optical path of the third color luminous beam C3 that has passed through the dichroism module 20. After being acted upon by other optical elements, at least one of the first color luminous beam C1, the second color luminous beam C2, and the third color luminous beam C3 is output as illumination luminous beam L1.

[0039] Based on the above, the support component in the embodiment of the present invention has at least the following advantages: compared to a conventional monolithic dichroic element frame, it can reduce the manufacturing cost of the element, and compared to a conventional dichroic element architecture using a combination of two optical elements, it can improve the stability of assembly, the precision of assembly, and the ease of assembly.

[0040] Although the present invention is disclosed above based on the preferred embodiments described above, these preferred embodiments are not intended to limit the present invention, and those skilled in the art can make minor modifications and embellishments to the present invention as long as they do not deviate from the technical idea and scope of the present invention. Therefore, the scope of protection of the present invention shall be based on the attached utility model claims. Furthermore, none of the embodiments or utility model claims of the present invention are required to achieve all of the purposes, advantages, or features disclosed herein. In addition, parts of the abstract and the title of the invention are provided solely to aid in the search of literature and do not limit the scope of rights of the present invention. Furthermore, terms such as "first," "second," etc., used herein or in the utility model claims are used solely to name elements or to distinguish different embodiments or scopes, and do not limit the quantitative upper or lower limits of elements. [Explanation of Symbols]

[0041] 10: Support parts 11: Main unit 111: Through hole 112: First end 113:Second end 114:Inner wall 115: First adhesive filling groove 116: Second adhesive filling groove 12:First fixed part 13:Second fixed part 14:First contact part 141: First contact surface 142:First opening 143: First adhesive filling surface 15:Second contact part 151:Second contact surface 152:Second opening 153:Second adhesive filling surface 16: Protrusion 20: Dichroism Module 21: First dichroic element 22: The second dichroic element 30: Projector 31: Lighting module 311: Bass 312: Light-emitting element 3121: First light-emitting element 3122: Second light-emitting element 3123: Third light-emitting element 32: Light bulb module 33: Projection lens P1: First reference plane P2: Second reference plane θ: included angle X: First axis direction Y: Second axis direction Z: Third axis direction H1: Height of the interior wall H2: Height W1: First projection height W2: Second projection height J1: First connection point J2: Second connection point L1: Illumination luminous flux L2: Video light beam S: Containment space C1: Primary color luminous flux C2: Second color luminous flux C3: Third-color luminous flux

Claims

1. A support component for fixing two dichroism elements, Including the main body, first fixing part, second fixing part, first contact part and second contact part, The main body is a frame having a through hole, and the main body has a first end and a second end that are opposite to each other in the first axial direction, The first fixing portion extends outward from the first end of the main body along the first axial direction, The second fixing portion extends outward from the second end of the main body along the first axial direction, and the through hole is located between the first fixing portion and the second fixing portion. The first contact portion is installed on the main body and extends from the inner wall of the main body to the through hole, and the first contact portion has a first contact surface. The second contact portion is installed on the main body and extends from the inner wall of the main body to the through hole, and the second contact portion has a second contact surface. A support component characterized in that the first contact surface is located on the first reference surface, the second contact surface is located on the second reference surface, and there is an angle between the first reference surface and the second reference surface.

2. The support component according to claim 1, characterized in that the first contact portion defines a first opening on the first reference surface, and the second contact portion defines a second opening on the second reference surface.

3. The support component according to claim 2, characterized in that the area of ​​the first opening is larger than the area of ​​the second opening.

4. The support component according to claim 1, characterized in that the connection point between the inner wall near the first end and the first contact surface is a first connection point, the connection point between the inner wall near the first end and the second contact surface is a second connection point, and there is a height of the inner wall between the first connection point and the second connection point.

5. It further includes multiple protrusions, The support component according to claim 1, characterized in that each of the multiple protrusions is installed on the main body and protrudes from the inner wall of the main body toward the through hole in the second axial direction, and in the second axial direction, the first protrusion height of the multiple protrusions protruding from the inner wall is smaller than the second protrusion height of the second contact portion protruding from the inner wall, and the first axial direction is perpendicular to the second axial direction.

6. The support component according to claim 5, wherein each of the multiple protrusions is connected to the first contact portion, thereby the first contact portion, together with the multiple protrusions, forms a plurality of first adhesive-filled surfaces on the first reference surface that are connected to the first contact portion, and the second contact portion, together with the multiple protrusions, forms a plurality of second adhesive-filled surfaces on the second reference surface that are connected to the second contact portion.

7. The support component according to claim 1, characterized in that the aforementioned angle is within the range of 6.3 degrees to 7.2 degrees.

8. It is a dichroism module, The support component, first dichroism element and second dichroism element described in claim 1 are included. The first dichroic element is installed on the support component, and the first dichroic element is in contact with the first contact surface of the first contact portion. A dichroism module characterized in that the second dichroism element is installed on the support component, and the second dichroism element is in contact with the second contact surface of the second contact portion.

9. The dichroism module according to claim 8, characterized in that the size of the second dichroism element is smaller than the size of the first dichroism element.

10. The dichroism module according to claim 8, characterized in that the connection point between the inner wall near the first end and the first contact surface is a first connection point, the connection point between the inner wall near the first end and the second contact surface is a second connection point, there is a height of the inner wall between the first connection point and the second connection point, and the height of the inner wall is greater than or equal to the height of the second dichroism element.

11. The support component further includes a plurality of protrusions, The dichroism module according to claim 8, characterized in that each of the multiple protrusions is installed on the main body and protrudes from the inner wall of the main body toward the through hole in the second axial direction, and in the second axial direction, the first protrusion height of the multiple protrusions protruding from the inner wall is smaller than the second protrusion height of the second contact surface protruding from the inner wall, and the first axial direction is perpendicular to the second axial direction.

12. The dichroism module according to claim 11, characterized in that each of the multiple protrusions is connected to the first contact portion, thereby the first contact portion, together with the multiple protrusions, forms a plurality of first adhesive-filled surfaces on the first reference surface that are connected to the first contact portion, and the second contact portion, together with the multiple protrusions, forms a plurality of second adhesive-filled surfaces on the second reference surface that are connected to the second contact portion.

13. The plurality of first adhesive-filled surfaces, the first dichroic element, and the inner wall of the main body form a plurality of first adhesive-filled grooves, and the plurality of first adhesive-filled grooves are used to fill with adhesive and fix the first dichroic element. The dichroism module according to claim 12, characterized in that a plurality of second adhesive-filled surfaces, a second dichroism element, and the inner wall of the main body form a plurality of second adhesive-filled grooves, and the plurality of second adhesive-filled grooves are used to fill with other adhesives to fix the second dichroism element.

14. It is a projector, A lighting module for providing luminous flux, A light bulb module located in the propagation path of the illumination luminous flux and for converting the illumination luminous flux into an image luminous flux, It includes a projection lens located in the propagation path of the image light beam and for projecting the image light beam outside the projector, The lighting module includes a base, a plurality of light-emitting elements, a support component according to claim 1, a first dichroic element, and a second dichroic element. The base has a storage space, Each of the multiple light-emitting elements is installed on the outer wall of the base, and the multiple light-emitting elements are used to provide a first-color luminous beam, a second-color luminous beam, and a third-color luminous beam to the housing space. The support component is installed in the housing space of the base, and the support component is installed within the base by the first fixing part and the second fixing part. The first dichroic element is installed on the support component, and the first dichroic element is in contact with the first contact surface of the first contact portion. The second dichroic element is installed on the support component, and the second dichroic element is in contact with the second contact portion. A projector characterized in that the first dichroic element, the second dichroic element, and the support component form a dichroic module, the dichroic module is located in the propagation path of the first color luminous beam, the second color luminous beam, and the third color luminous beam, and thereby the first color luminous beam, the second color luminous beam, and the third color luminous beam form the illumination luminous beam by the dichroic module.

15. The plurality of light-emitting elements include a first light-emitting element, a second light-emitting element, and a third light-emitting element, and the first light-emitting element, the second light-emitting element, and the third light-emitting element are used to provide the first color luminous beam, the second color luminous beam, and the third color luminous beam, respectively. The projector according to claim 14, characterized in that the first dichroic element is arranged to face the third light-emitting element, and the second dichroic element is arranged to face the first light-emitting element and the second light-emitting element.

16. The first dichroic element is used to reflect the light beam of the first color and allow the light beam of the third color to pass through. The projector according to claim 15, characterized in that the second dichroic element is used to reflect the light beam of the second color and to allow the light beam of the third color to pass through.

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