WO2021121299A1

WO2021121299A1 - Color wheel adjusting assembly and optical device

Info

Publication number: WO2021121299A1
Application number: PCT/CN2020/137080
Authority: WO
Inventors: 陈永壮; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2019-12-18
Filing date: 2020-12-17
Publication date: 2021-06-24
Also published as: CN211348974U

Abstract

Disclosed are a color wheel adjusting assembly and an optical device. The color wheel adjusting assembly comprises: a fixing support (11) provided with a first fixing part (111) and a second fixing part (112); a color wheel support (12) fixed on the fixing support (11) to be used for mounting a color wheel (14); and a first adjusting member and a second adjusting member, wherein the first adjusting member is used for cooperating with the first fixing part (111) to fix the color wheel support (12), the second adjusting member is used for cooperating with the second fixing part (112) to fix the color wheel support (12), and by adjusting the first adjusting member and/or the second adjusting member, the color wheel support (12) and the fixing support (11) can move relatively, such that the structure is simple, and color wheel adjustment is more flexible.

Description

Color wheel adjusting component and optical device

Technical field

This application relates to the field of optical technology, in particular to a color wheel adjustment assembly and an optical device.

Background technique

Projectors, especially DLP projectors, are widely used. Generally speaking, the projection light source is used together with the color wheel module, so that the light can be converted into colored light when passing through different color areas of the color wheel, such as red light, green light and blue light, etc., and then the colored light is converted by digital micromirror components It is projected to the screen to form an image. Therefore, the accuracy of the color wheel position is critical to the projection performance.

However, due to errors caused by theoretical calculations, processing techniques, and assembly techniques, the optical system is often deviated on the optical path, which in turn affects the performance of the optical system and the quality of the image projected by the projector.

Utility model content

This application mainly provides a color wheel adjustment assembly and optical device with a simple structure and more flexible color wheel adjustment.

In order to solve the above technical problems, a technical solution adopted in this application is to provide a color wheel adjustment assembly, including: a fixing bracket having a first fixing part and a second fixing part; The bracket is used to install the color wheel; and the first adjusting member and the second adjusting member, wherein the first adjusting member is used to cooperate with the first fixing portion to fix the color wheel bracket, so The second adjusting member is used to cooperate with the second fixing portion to fix the color wheel bracket. By adjusting the first adjusting member and/or the second adjusting member, the color wheel Relative movement occurs between the bracket and the fixed bracket.

In one embodiment, the first fixing portion includes a first limiting portion and a first adjusting portion, and the color wheel bracket includes a first adjusting member support portion, wherein the first limiting portion is connected to the color The first limiting hole opened on the wheel bracket is correspondingly provided, the first adjusting portion is provided corresponding to the first adjusting member supporting portion, the first adjusting member includes a first adjusting rod member and a first limiting rod member, so The first adjusting rod is inserted between the first adjusting part and the first adjusting part supporting part to adjust the relative movement between the color wheel bracket and the first fixing part, the The first limiting rod is inserted between the first limiting portion and the first limiting hole to limit the movement stroke between the color wheel bracket and the first fixing portion.

In an embodiment, the second fixing portion includes a second limiting portion and a second adjusting member support portion, the color wheel bracket includes a second adjusting portion, and the second limiting portion is connected to the color wheel bracket The second limiting hole opened on the upper side is correspondingly provided, the second adjusting portion is provided corresponding to the second adjusting member support portion, and the second adjusting member includes a second adjusting rod and a second limiting rod, so The second adjusting rod is inserted between the second adjusting part and the second adjusting part supporting part to adjust the relative movement between the color wheel bracket and the second fixing part, the The second limiting rod is inserted between the second limiting portion and the second limiting hole to limit the movement stroke between the color wheels and the first fixing portion.

In one embodiment, the first fixing part fixes the upper end of the color wheel bracket, the second fixing part fixes the lower end of the color wheel bracket, and includes at least two fixing parts that cooperate with the first fixing part. The first adjusting member or at least includes two second adjusting members that cooperate with the second fixing portion.

In one embodiment, the first limiting hole and the second limiting hole are U-shaped holes, and the first limiting portion is provided with a through hole corresponding to the first limiting hole, so The second limiting portion is provided with a through hole corresponding to the second limiting hole.

In one embodiment, the first adjusting rod is an adjusting screw, a threaded hole is opened on the first adjusting part, and the adjusting screw is penetrated through the first adjusting part under the support of the first adjusting part. The threaded hole is capable of relative movement between the color wheels and the first fixing part under the thread cooperation of the adjusting screw and the threaded hole.

In one embodiment, the second adjusting rod is an adjusting screw, the second adjusting part is provided with a threaded hole, and the adjusting screw is penetrated through the second adjusting part under the support of the second adjusting part. The threaded hole is capable of relative movement between the color wheels and the second fixing part under the thread cooperation of the adjusting screw and the threaded hole.

In an embodiment, U-shaped support holes are opened on the first adjustment support portion and the second adjustment support portion.

In one embodiment, the color wheel adjustment assembly further includes a base, and the first fixing part and the second fixing part are fixedly connected to the base.

In one embodiment, the base includes a first positioning portion and a second positioning portion, the first fixing portion is connected to the first positioning portion, and the second fixing portion is connected to the second positioning portion, The first positioning portion is higher than the second fixing position portion, so that the first fixing portion fixes the upper end of the color wheel bracket, and the second fixing portion fixes the lower end of the color wheel bracket.

In an embodiment, the first positioning portion is at least two positioning posts.

An optical device, which comprises a color wheel and the above-mentioned color wheel adjustment assembly, and the color wheel is fixed on the color wheel support of the color wheel adjustment assembly.

In one embodiment, the optical device further includes an incident light guiding device and an emergent light shaping device, wherein the incident light guiding device is used for guiding incident light to the color wheel, and the emergent light shaping device is used for Light-shaping the light emitted from the color wheel.

The beneficial effect of the present application is: different from the state of the art, the color wheel adjusting assembly provided by the present application includes a fixing bracket, a color wheel bracket, and an adjusting assembly; The relative displacement between the two can cause a first relative displacement between the color wheel holder and the first fixing part. Similarly, through the second relative displacement between the first adjusting member and the first fixing part of the color wheel holder, The relative displacement between the color wheel bracket and the first fixing part can be made, and the movement and rotation of the color wheel bracket can be realized by controlling the magnitude of the first relative displacement and the second relative displacement, the structure is simple, and the adjustment process is convenient.

Description of the drawings

In order to more clearly describe the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings that need to be used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, without creative work, other drawings can be obtained based on these drawings, among which:

Figure 1 is an exploded view of the color wheel adjustment assembly provided by this application (the base is not shown);

2 is a schematic diagram of the structure of the disassembled optical device provided by the present application;

Fig. 3 is a schematic top view of the assembly of the optical device in Fig. 1.

Detailed ways

The application will be further described in detail below in conjunction with the drawings and embodiments. It is particularly pointed out that the following examples are only used to illustrate the application, but do not limit the scope of the application. Similarly, the following embodiments are only part of the embodiments of the present application, but not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art without creative work shall fall within the protection scope of the present application.

The terms "first", "second", and "third" in this application are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined with “first”, “second”, and “third” may explicitly or implicitly include at least one of the features. In the description of this application, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined. All directional indicators (such as up, down, left, right, front, back...) in the embodiments of this application are only used to explain the relative positional relationship between the components in a specific posture (as shown in the drawings) , Movement status, etc., if the specific posture changes, the directional indication will also change accordingly. In addition, the terms "including" and "having" and any variations of them are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but optionally includes unlisted steps or units, or optionally also includes Other steps or units inherent to these processes, methods, products or equipment.

The reference to "embodiments" herein means that a specific feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art clearly and implicitly understand that the embodiments described herein can be combined with other embodiments.

Please refer to Figure 1. Figure 1 is an exploded view of the color wheel adjustment assembly provided in this application. The color wheel adjustment components include:

The fixing bracket 11 has a first fixing portion 111 and a second fixing portion 112.

The color wheel bracket 12 is fixed on the fixing bracket 11 for mounting the color wheel 14; and

The first adjusting member and the second adjusting member, wherein the first adjusting member is used to cooperate with the first fixing portion 111 to fix the color wheel holder 12, and the second adjusting member is used to cooperate with the second fixing portion 112 to mutually cooperate with each other. Fix the color wheel bracket 12.

By adjusting the first adjusting member, the color wheel bracket 12 can move relative to the first fixing portion 111, and adjusting the second adjusting member can make the color wheel bracket 12 move relative to the second fixing portion 112, thereby realizing the adjustment of the color wheel. Adjustment of the position of the bracket 12.

In one embodiment, as shown in FIG. 1, the first fixing portion 111 and the second fixing portion 112 are two independent parts, and the first fixing portion 111 cooperates with the first adjusting member to fix the upper end of the color wheel bracket 12 , The second fixing portion 112 cooperates with the second adjusting member to fix the lower end of the color wheel bracket 12, so that the upper end of the color wheel bracket 12 can move relative to the first fixing portion 111, and the lower end of the color wheel bracket 12 can be with the second The fixed portion 112 moves relative to each other, so as to realize the translation and pitch adjustment of the color wheel bracket 12, that is, the color wheel 14.

Specifically: the upper and lower ends of the color wheel holder 12 move in the same direction with the same displacement, then the color wheel holder 12 can be translated, and the upper and lower ends of the color wheel holder 12 move in different directions or move in the same direction with different displacements, then It can realize pitch adjustment.

In one embodiment, the first fixing portion 111 includes a first limiting portion 1111 and a first adjusting portion 1112, and the color wheel bracket includes a first adjusting member support portion 121, wherein the first limiting portion 1111 and the color wheel bracket 12 The first limiting hole 122 opened on the upper side is correspondingly provided, and the first adjusting portion 1112 is provided correspondingly to the first adjusting member supporting portion 121. The first adjusting member includes a first adjusting rod 131 and a first limiting rod 132. The adjusting rod 131 penetrates between the first adjusting part 1112 and the first adjusting part supporting part 121 to adjust the relative movement between the color wheel bracket 12 and the first fixing part 111, and the first limiting rod 132 penetrates It is arranged between the first limiting portion 1111 and the first limiting hole 122 to limit the movement stroke between the color wheel bracket 12 and the first fixing portion 111.

Further, the first limiting portion 1111 is provided with a through hole, the first limiting hole 122 is a special-shaped hole, preferably a U-shaped hole, and the length of the U-shaped hole is between the color wheel support 12 and the first fixing portion 111 The running itinerary. The first limiting rod 132 is a bolt, which penetrates through the through hole on the first limiting portion 1111 and the first limiting hole 122.

Further, the first adjusting rod 131 is an adjusting screw, and the first adjusting portion 1112 of the first fixing portion 111 is provided with a threaded hole. The first adjusting member supporting portion 121 may be a supporting plate or a supporting plate for supporting the first adjusting member, and the supporting plate or the supporting table is provided with a hole for piercing an adjusting screw, preferably a U-shaped supporting hole. Under the action of external force, the adjusting screw moves relative to the threaded hole, thereby driving the color wheel bracket 12 to move relative to the first fixing portion 111, and the displacement of the relative movement is restricted by the first limiting hole 122.

In one embodiment, the second fixing portion 112 and the first fixing portion 111 have the same or similar structure, and also include a limiting portion and an adjusting portion, and the second adjusting member has the same or similar structure as the first adjusting member, and also includes adjusting The rod and the limiting rod, and the color wheel bracket is also provided with a limiting hole corresponding to the limiting part on the second fixing part 112, and a supporting part for supporting the adjusting rod is also provided.

1 for the specific structure, the second fixing portion 112 includes a second limiting portion 1121 and a second adjusting member support portion 1122, the color wheel bracket includes a second adjusting portion 123, wherein the second limiting portion 1121 and the color wheel bracket The second limiting hole 124 opened on 12 is correspondingly provided, the second adjusting portion 123 is provided corresponding to the second adjusting member supporting portion 1122, and the second adjusting member includes a second adjusting rod 133 and a second limiting rod 134. The two adjusting rods 133 are inserted between the second adjusting part 123 and the second adjusting part supporting part 1122 to adjust the relative movement between the color wheel support 12 and the second fixing part 112, and the second limiting rod 134 It penetrates between the second limiting portion 1121 and the second limiting hole 124 to limit the movement stroke between the color wheel bracket 12 and the second fixing portion 112.

Further, the second limiting portion 1121 is provided with a through hole. The second limiting hole 124 is a special-shaped hole, preferably a U-shaped hole. The length of the U-shaped hole is between the color wheel support 12 and the second fixing portion 112. The running itinerary. The second limiting rod 134 is a bolt, which penetrates through the through hole on the second limiting portion 1121 and the second limiting hole 124.

Further, the second adjusting rod 133 is an adjusting screw, and the second adjusting member supporting portion 1112 of the second fixing portion 112 may be a supporting plate or a supporting plate for supporting the second adjusting member. The hole through which the adjusting screw is inserted is preferably a U-shaped supporting hole. A threaded hole is opened on the second adjusting portion 123. Under the action of external force, the adjusting screw moves relative to the threaded hole, thereby driving the color wheel bracket 12 to move relative to the second fixing portion 112, and the displacement of the relative movement is restricted by the second limiting hole 124.

In one embodiment, the first fixing portion 111 fixes the upper end of the color wheel bracket 12, and the second fixing portion 112 fixes the lower end of the color wheel bracket 12.

Continuing to refer to FIG. 1, in order to realize the rotation adjustment of the color wheel in the A direction, at least two first adjusting members that cooperate with the first fixing portion are provided. The connection mode of the plurality of first adjusting members with the first fixing part and the color wheel bracket is as described above. During the adjustment, the adjustment direction or the adjustment stroke of the plurality of first adjustment members is different, and the rotation adjustment in the direction of the color wheel A can be realized.

It can be understood that at least two second adjusting members that cooperate with the second fixing portion may also be provided.

Preferably, two first adjusting members are provided to cooperate with the first fixing portion, and one second adjusting member is provided to cooperate with the second fixing portion, and one of the first adjusting member and the second adjusting member are located on one side of the color wheel (such as The left side in Fig. 1), and the other first adjusting member is located on the other side of the color wheel (the right side in Fig. 1). When adjusting, the adjustment strokes and directions of the first adjusting member and the second adjusting member on the left are the same, and the rotation adjustment of the color wheel in the A direction is realized through the difference of the adjustment strokes on the left and right.

In one embodiment, as shown in FIG. 2, the color wheel adjustment assembly further includes a base 15, and the first fixing portion 111 and the second fixing portion 112 are fixedly connected to the base 15.

Further, the base 15 includes a first positioning portion 151 and a second positioning portion 152. The first fixing portion 111 is connected to the first positioning portion 151, the second fixing portion 112 is connected to the second positioning portion 152, and the first positioning portion 151 is high. At the second positioning portion 152, the first fixing portion 111 fixes the upper end of the color wheel bracket 12, and the second fixing portion 112 fixes the lower end of the color wheel bracket 12.

Further, the first positioning portion 151 is at least two positioning posts. The center of the upper end of the positioning column is provided with a mounting hole, and the first fixing portion 111 is provided with a mounting hole, and the two are connected together by a connecting piece 211. The first positioning part 151 is a positioning table. At least one mounting hole is provided on the positioning platform, and a mounting hole is provided on the second fixing portion 112, and the two are connected together by a connecting piece 212.

In one embodiment, an optical device is provided. For details, referring to FIGS. 2 and 3, the optical device includes a color wheel 14 and the above-mentioned color wheel adjustment assembly. The color wheel 14 is fixed on the color wheel support of the color wheel adjustment assembly.

In one embodiment, the optical device further includes an incident light guiding device 16 and an outgoing light shaping device 17, wherein the incident light guiding device 16 is used to guide the incident light 18 to the color wheel 14, and the outgoing light shaping device 17 is used to align the light from The emitted light 19 emitted from the color wheel 14 is light-shaped. Both the incident light guiding device 16 and the outgoing light shaping device are fixed on the base 15.

Preferably, the incident light guiding device 16 may be a condensing lens, and the outgoing light shaping device 17 may be a homogenizing device, such as a cloud light rod, a compound eye, and the like.

Different from the prior art, the color wheel adjustment assembly in this embodiment includes a fixed bracket, a color wheel bracket, and an adjustment assembly; the color wheel bracket is used to install the color wheel, and the adjustment assembly includes a first adjustment piece and a second adjustment piece. The adjusting member connects one end of the color wheel bracket with the fixing bracket, and the second adjusting member connects the other end of the color wheel bracket with the fixing bracket. By adjusting the first adjusting member and/or the second adjusting member, one end of the color wheel bracket can be made And/or the other end of the color wheel bracket is close to or far away from the fixed bracket, so that the color wheel bracket moves or rotates relative to the fixed bracket, thereby adjusting the optical path position and angle of the reflected light path formed by the color wheel reflection, reducing the optical path of the reflected beam Deviation improves the optical path accuracy of the reflected beam, and the structure is simple, and the adjustment process is convenient.

The above are only examples of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made using the content of the description and drawings of this application, or directly or indirectly applied to other related technical fields, The same reasoning is included in the scope of patent protection of this application.

Claims

A color wheel adjustment assembly, characterized in that it comprises:

A fixing bracket, which has a first fixing portion and a second fixing portion;

A color wheel bracket, which is fixed on the fixing bracket for mounting the color wheel; and

The first adjusting member and the second adjusting member, wherein the first adjusting member is used to cooperate with the first fixing portion to fix the color wheel bracket, and the second adjusting member is used to interact with the The second fixing parts cooperate with each other to fix the color wheel bracket. By adjusting the first adjusting member and/or the second adjusting member, the color wheel bracket and the fixing bracket can be opposed to each other. movement.
The color wheel adjusting assembly according to claim 1, wherein the first fixing portion includes a first limiting portion and a first adjusting portion, and the color wheel bracket includes a first adjusting member support portion, wherein The first limiting portion is provided corresponding to the first limiting hole opened on the color wheel bracket, the first adjusting portion is provided corresponding to the first adjusting member supporting portion, and the first adjusting member includes a first adjusting rod The first adjusting rod is inserted between the first adjusting part and the first adjusting part supporting part to align the color wheel bracket and the first fixing part. The first limiting rod is inserted between the first limiting portion and the first limiting hole to adjust the color wheel bracket and the first fixing portion. The movement stroke between is limited.
The color wheel adjustment assembly of claim 2, wherein the second fixing portion includes a second limiting portion and a second adjusting member support portion, the color wheel bracket includes a second adjusting portion, and the first Two limiting portions are provided corresponding to the second limiting hole opened on the color wheel bracket, the second adjusting portion is provided corresponding to the second adjusting member supporting portion, and the second adjusting member includes a second adjusting rod The second adjusting rod is inserted between the second adjusting part and the second adjusting part supporting part to align the color wheel bracket and the second fixing part. The relative movement between the color wheels is adjusted, and the second limiting rod is inserted between the second limiting portion and the second limiting hole to fix the color wheel to the first fixing hole. The movement stroke between the parts is limited.
The color wheel adjustment assembly according to claim 1, wherein the first fixing portion fixes the upper end of the color wheel bracket, and the second fixing portion fixes the lower end of the color wheel bracket, comprising at least two The first adjusting member matched with the first fixing portion or at least includes two second adjusting members matched with the second fixing portion.
The color wheel adjustment assembly according to claim 3, wherein the first limiting hole and the second limiting hole are U-shaped holes, and the first limiting portion is provided with the first limiting hole and the second limiting hole. A through hole corresponding to a limiting hole, and a through hole corresponding to the second limiting hole is opened on the second limiting portion.
The color wheel adjusting assembly of claim 2, wherein the first adjusting rod is an adjusting screw, the first adjusting portion is provided with a threaded hole, and the adjusting screw is installed in the first adjusting member. The support portion is supported by the threaded hole, and under the thread of the adjusting screw and the threaded hole, relative movement can occur between the color wheel and the first fixing portion.
The color wheel adjusting assembly of claim 3, wherein the second adjusting rod is an adjusting screw, the second adjusting part is provided with a threaded hole, and the adjusting screw is installed in the second adjusting member. The support part is supported by the threaded hole and penetrates through the threaded hole, and relative movement can occur between the color wheel and the second fixing part under the thread cooperation of the adjusting screw and the threaded hole.
The color wheel adjustment assembly of claim 3, wherein the first adjustment support portion and the second adjustment support portion are provided with U-shaped support holes.
The color wheel adjustment assembly according to claim 1, wherein the color wheel adjustment assembly further comprises a base, and the first fixing part and the second fixing part are fixedly connected to the base.
The color wheel adjustment assembly of claim 9, wherein the base includes a first positioning portion and a second positioning portion, the first fixing portion is connected to the first positioning portion, and the second fixing portion is connected to the first positioning portion. Portion is connected to the second positioning portion, the first positioning portion is higher than the second positioning portion, so that the first fixing portion fixes the upper end of the color wheel holder, and the second fixing portion fixes the The lower end of the color wheel bracket.
The color wheel adjustment assembly of claim 10, wherein the first positioning portion is at least two positioning posts.
An optical device, wherein the optical device comprises a color wheel and the color wheel adjustment assembly according to any one of claims 1 to 11, and the color wheel is fixed to the color of the color wheel adjustment assembly. Wheel bracket.
The optical device according to claim 12, wherein the optical device further comprises an incident light guiding device and an outgoing light shaping device, wherein the incident light guiding device is used to guide the incident light to the color wheel, The outgoing light shaping device is used for light shaping the outgoing light emitted from the color wheel.