Transmission-type structure of spatial light modulator

Abstract

The utility model relates to the field of spatial light modulators, in particular to a transmission type structure of a spatial light modulator, which comprises a protection part, heat dissipation holes are arranged on one side of the protection part, a movable part is arranged at one end of the protection part, the protection part comprises a protection shell, a modulator and a groove, the groove is arranged on the end face of the protection shell, and the modulator is arranged in the groove. The modulator is installed on the inner wall of the protective shell, the movable part comprises an installation shell and a triangular prism, the triangular prism is installed on the installation shell, and the installation shell is movably inserted into a groove of the protective shell; the installation shell is arranged at one end of the protection shell, the light transmitting hole formed in the installation shell and the triangular prism located on the installation shell are utilized, light rays penetrate through the installation shell from the side face and are reflected into the modulator through the triangular prism, the effect of saving longitudinal space is achieved, and the effect of modulating a transverse light source is achieved.

Description

Technical Field

[0001] The utility model relates to the field of spatial light modulators, in particular to a transmission structure of a spatial light modulator. Background Art

[0002] A spatial light modulator is an optical device that can modulate a parameter of the light field through liquid crystal molecules or other mechanisms under active control. The modulation methods include modulating the amplitude of the light field, modulating the phase through the refractive index, modulating the polarization state through the rotation of the polarization plane, or realizing the conversion of incoherent to coherent light.

[0003] When the current spatial light modulator receives light, the spatial light modulator and the light are in a longitudinal irradiation relationship. However, in actual applications, it is often necessary to have a horizontal layout between the spatial light modulator and the light source, which cannot adapt to the angle at which the existing spatial light modulator receives light. Utility Model Content

[0004] Based on the above description, the utility model provides a transmissive structure of a spatial light modulator to solve the problem that the existing spatial light modulator is not good at receiving light from a light source arranged horizontally.

[0005] The technical solution of the utility model to solve the above technical problems is as follows: a spatial light modulator transmissive structure comprises a protection part, and a heat dissipation hole is opened on one side of the protection part;

[0006] A movable part is provided at one end of the protection part, and the protection part includes a protection shell, a modulator and a groove, wherein the groove is provided on the end surface of the protection shell, and the modulator is installed on the inner wall of the protection shell;

[0007] The movable part comprises a mounting shell and a prism, wherein the prism is mounted on the mounting shell, and the mounting shell is movably inserted into the groove of the protective shell.

[0008] Furthermore, the protection part also includes a threaded hole, the number of the threaded holes is two, and the two threaded holes are opened on the side wall of the protection shell.

[0009] On the basis of the above technical solution, the present invention can also be improved as follows.

[0010] Furthermore, the movable part further comprises a light-transmitting hole, the number of the light-transmitting holes is two, and the two light-transmitting holes are symmetrically distributed on two sides of the mounting shell.

[0011] Furthermore, the movable part also includes a mounting plate, and bolts are fixedly installed at the four corners of the mounting plate. After the bolts pass through the mounting plate, they can be detachably installed on the mounting shell, and one side of the prism is fixedly connected to one side of the mounting plate.

[0012] Furthermore, a pull rod is fixedly connected to the back of the installation shell, and the connection between the pull rod and the installation shell is located at the center of the installation shell.

[0013] Furthermore, a fixing rod is installed on the side wall of the protective shell, one end of the fixing rod passes through the threaded hole and fits onto the side wall of the mounting shell, and a threaded groove matching the threaded hole is formed on the fixing rod.

[0014] Furthermore, a vertical rod is fixedly connected to the end surface of the fixing rod, and the number of the vertical rods is four, and the four vertical rods are distributed in a letter-shaped manner on the end surface of the fixing rod.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] 1. The utility model sets a mounting shell at one end of the protective shell, utilizes the light-transmitting hole opened on the mounting shell and the prism located on the mounting shell, allows the light to pass through the mounting shell from the side and be reflected by the prism to the modulator, thus playing the role of saving longitudinal space and achieving the effect of modulating the horizontal light source.

[0017] 2. By opening a groove on the protective shell and inserting the mounting shell into the groove of the protective shell, it is convenient to pull the mounting shell to adjust the relative position of the light-transmitting hole and the light source, so that the light emitted by the light source can smoothly pass through the light-transmitting hole into the inner cavity of the mounting shell, ensuring the smooth reflection of the prism. At the same time, the mounting shell that can adjust the position can also further save space. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of a spatial light modulator provided by an embodiment of the utility model;

[0019] Figure 2 It is a three-dimensional structural schematic diagram of the installation shell in the utility model;

[0020] Figure 3 It is a three-dimensional structural schematic diagram of the protective shell in the utility model;

[0021] Figure 4 It is a schematic diagram of the three-dimensional structure of the protective shell in the utility model.

[0022] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0023] 1. Protective part; 101. Protective shell; 102. Threaded hole; 103. Modulator; 104. Groove; 2. Movable part; 201. Mounting shell; 202. Light-transmitting hole; 203. Mounting plate; 204. Prism; 3. Heat dissipation hole; 4. Pull rod; 5. Fixing rod. DETAILED DESCRIPTION

[0024] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] It should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the technical product is usually placed when in use. They are only for the convenience of describing the present technology and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present technology. In addition, "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. Therefore, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0027] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0028] In the description of this technology, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this technology can be understood according to specific circumstances.

[0029] See also Figure 1 , Figure 2 and Figure 3, a transmission structure of a spatial light modulator, comprising a protection part 1, a heat dissipation hole 3 is opened on one side of the protection part 1;

[0030] A movable part 2 is provided at one end of the protection part 1. The protection part 1 includes a protection shell 101, a modulator 103 and a groove 104. The groove 104 is provided on the end surface of the protection shell 101. The modulator 103 is installed on the inner wall of the protection shell 101.

[0031] The movable part 2 includes a mounting shell 201 and a prism 204 . The prism 204 is mounted on the mounting shell 201 . The mounting shell 201 is movably inserted into the groove 104 of the protective shell 101 .

[0032] An active part 2 is arranged on the protective part 1, and a prism 204 installed on the active part 2 is used to refract the light, so that the refracted light enters the modulator 103, and after being modulated by the modulator 103, it passes through the active part 2, thereby achieving the effect of modulating the light in the horizontal layout.

[0033] See also Figure 1 and Figure 3 In this embodiment, the protection part 1 further includes a threaded hole 102 . The number of the threaded holes 102 is two, and the two threaded holes 102 are opened on the side wall of the protection shell 101 .

[0034] See also Figure 2 and Figure 4 In this embodiment, the movable portion 2 further includes two light-transmitting holes 202 , and the two light-transmitting holes 202 are symmetrically distributed on both sides of the mounting shell 201 .

[0035] A light-transmitting hole 202 is provided on the movable portion 2 to allow light to penetrate the entire movable portion 2. Compared with the existing method of allowing the modulator 103 to directly receive light in the longitudinal direction, the transmission combined with the refraction of the prism 204 can allow the light source to be arranged at the side of the modulator 103, thereby saving longitudinal space.

[0036] See also Figure 2 and Figure 4 The movable part 2 of this embodiment also includes a mounting plate 203, and bolts are fixedly installed at the four corners of the mounting plate 203. After the bolts pass through the mounting plate 203, they can be detachably installed on the mounting shell 201. One side of the prism 204 is fixedly connected to one side of the mounting plate 203.

[0037] Bolts are installed at the four corners of the mounting plate 203 to fix the prism 204 and ensure the stability of the prism 204 .

[0038] See also Figure 2 and Figure 4In this embodiment, a pull rod 4 is fixedly connected to the back of the installation shell 201 , and the connection between the pull rod 4 and the installation shell 201 is located at the center of the installation shell 201 .

[0039] By pulling the pull rod 4, the installation shell 201 can be easily driven to slide in the protective shell 101, thereby adjusting the distance between the light-transmitting hole 202 and the modulator 103, conveniently adapting to the position of the light source, and further achieving the effect of saving space.

[0040] See also Figure 1 and Figure 3 In this embodiment, a fixing rod 5 is installed on the side wall of the protective shell 101. One end of the fixing rod 5 passes through the threaded hole 102 and fits onto the side wall of the mounting shell 201. A threaded groove matching the threaded hole 102 is formed on the fixing rod 5.

[0041] The fixing rod 5 is screwed to be threadedly fastened with the threaded hole 102 , so that the end surface of the fixing rod 5 is closely fitted to the side wall of the mounting shell 201 , thereby achieving a fixing effect on the mounting shell 201 .

[0042] See also Figure 1 and Figure 4 In this embodiment, the end surface of the fixing rod 5 is fixedly connected with a vertical rod, and the number of the vertical rods is four, and the four vertical rods are distributed on the end surface of the fixing rod 5 in a letter shape.

[0043] A vertical rod is provided on the fixing rod 5 , so that the fixing rod 5 can be rotated conveniently by grasping the vertical rod, and the fixing rod 5 can be rotated to fasten the mounting shell 201 .

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A transmissive structure of a spatial light modulator, comprising a protective portion (1), a heat dissipation hole (3) being provided on one side of the protective portion (1), characterized in that: A movable part (2) is provided at one end of the protective part (1), the protective part (1) comprises a protective shell (101), a modulator (103) and a groove (104), the groove (104) is provided on the end surface of the protective shell (101), and the modulator (103) is installed on the inner wall of the protective shell (101); The movable part (2) comprises a mounting shell (201) and a prism (204); the prism (204) is mounted on the mounting shell (201); and the mounting shell (201) is movably inserted into a groove (104) of the protective shell (101).

2. The transmissive structure of the spatial light modulator according to claim 1, characterized in that: The protection part (1) further comprises a threaded hole (102), the number of the threaded holes (102) is two, and the two threaded holes (102) are opened on the side wall of the protection shell (101).

3. The transmissive structure of the spatial light modulator according to claim 1, characterized in that: The movable part (2) further comprises light-transmitting holes (202), the number of the light-transmitting holes (202) being two, and the two light-transmitting holes (202) being symmetrically distributed on two sides of the mounting shell (201).

4. The transmissive structure of the spatial light modulator according to claim 1, characterized in that: The movable part (2) further comprises a mounting plate (203), wherein bolts are fixedly mounted at the four corners of the mounting plate (203), and the bolts are detachably mounted on the mounting shell (201) after passing through the mounting plate (203), and one side of the prism (204) is fixedly connected to one side of the mounting plate (203).

5. The transmissive structure of the spatial light modulator according to claim 1, characterized in that: The back of the installation shell (201) is fixedly connected to a pull rod (4), and the connection between the pull rod (4) and the installation shell (201) is located at the center of the installation shell (201).

6. The transmissive structure of the spatial light modulator according to claim 1, characterized in that: A fixing rod (5) is installed on the side wall of the protective shell (101), one end of the fixing rod (5) passes through the threaded hole (102) and fits onto the side wall of the mounting shell (201), and a threaded groove matching the threaded hole (102) is provided on the fixing rod (5).

7. The transmissive structure of the spatial light modulator according to claim 6, characterized in that: A vertical rod is fixedly connected to the end surface of the fixing rod (5), and the number of the vertical rods is four. The four vertical rods are distributed in a letter-shaped manner on the end surface of the fixing rod (5).

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