A variable light shape collimating light source assembly

Abstract

The utility model belongs to the technical field of projection equipment provides a variable light shape collimating light source subassembly, including LED light source, light source lens, support component and liquid crystal screen. Its through setting light source lens carries out the adjustment to the light of LED light source, namely will the light of LED light source emit form collimating light beam, will and the overall light energy of light spot tend to be consistent, will collimating light beam project on the display area of liquid crystal screen, reach better display effect, and the component assembly of each part of the application realizes the installation connection of modularization through mounting piece and mounting portion, is convenient for installation and dismounting, facilitates production and manufacture, reduces the cost of production.

Description

Technical Field

[0001] This utility model belongs to the field of projection equipment technology, specifically relating to a variable light shape collimating light source component. Background Technology

[0002] An LCD projector is a projector that uses a full-color, transmissive liquid crystal display (LCD) screen. Light is emitted from an illumination component and projected onto the screen through a projection lens, magnifying the image. Existing single-chip LCD projectors use LED light sources with large divergence angles, resulting in poor performance. Furthermore, their complex structure makes them inconvenient to manufacture. Utility Model Content In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a variable light shape collimating light source component.

[0003] The technical solution adopted by this utility model to solve its technical problem is: A variable light shape collimating light source assembly includes an LED light source, a light source lens, a support assembly, and an LCD screen; The bracket assembly includes a bracket component, a first mounting component, a second mounting component, and a third mounting component. The bracket component includes a first mounting portion, a second mounting portion, a third mounting portion, and a light channel portion. The light channel portion is disposed through the first mounting portion, the second mounting portion, and the third mounting portion. The LED light source is disposed on the first mounting portion via the first mounting component. The light source lens is disposed on the second mounting portion via the second mounting component. The LCD screen is disposed on the third mounting portion via the third mounting component. The LED light source, light source lens, and LCD screen are arranged from top to bottom relative to the bracket assembly; The light channel section allows the light beam from the LED light source to pass through; The light source lens has a light-injecting side and a light-emission side. The light-injecting side is positioned facing the LED light source, and the light-emission side is positioned facing the LCD screen. The light source lens is used to collimate the light emitted from the LED light source into a collimated beam.

[0004] Preferably, the first mounting portion is a groove-shaped structure located at the top of the bracket, the circuit board of the LED light source cooperates with the first mounting portion, and the first mounting member is located at the first mounting portion and abuts against the circuit board of the LED light source.

[0005] Preferably, a heat sink is provided on one end face of the circuit board of the LED light source.

[0006] Preferably, the light source lens has protruding lens fixing parts on both sides, and the second mounting part is a groove-shaped structure located in the middle of the bracket and cooperating with the lens fixing parts.

[0007] Preferably, the second mounting member is an annular pressure ring member, which has a pressure ring channel portion for the light beam of the LED light source to pass through. The second mounting member cooperates with the second mounting portion and abuts against the lens fixing portion.

[0008] Preferably, the third mounting part is a groove-shaped structure located at the bottom of the bracket, and the third mounting member is a ring-shaped fixing piece located at the bottom of the bracket and abutting against the bottom of the LCD screen.

[0009] Preferably, the side of the bracket assembly is provided with a wiring channel communicating with the third mounting part, and the wiring channel cooperates with the wiring components of the LCD screen.

[0010] Preferably, the projection light source of the LED light source is a monochromatic light source, a red-green-blue light source, or a red-green-blue-white multicolor light source.

[0011] Preferably, the light source lens is a convex lens or a Fresnel lens.

[0012] Preferably, the LCD screen is a monochrome negative display LCD screen.

[0013] Compared with the prior art, the beneficial effects of this utility model include: The variable light shape collimating light source assembly of this application adjusts the light from the LED light source through a set light source lens, that is, the light emitted by the LED light source is formed into a collimated beam, and the overall light energy of the light spot tends to be uniform. The collimated beam is projected onto the display area of ​​the LCD screen to achieve a better display effect. Furthermore, the various components of this application are modularly connected through mounting parts and mounting components, which facilitates installation and disassembly, facilitates manufacturing, and reduces production costs. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is the optical path diagram of the LED light source of this utility model through the light source lens; Figure 3 This is a schematic diagram of the structure of the LCD screen of this utility model; in: 1. LED light source; 2. Light source lens; 201. Lens fixing part; 3. LCD screen; 4. Support component; 5. First mounting part; 6. Second mounting part; 7. Third mounting part; 8. First mounting part; 9. Second mounting part; 10. Third mounting part; 11. Light channel part; 12. Heat sink; 13. Circuit channel. Detailed Implementation

[0016] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0018] Example: like Figure 1-3 As shown, this embodiment provides a variable light shape collimating light source assembly, including an LED light source 1, a light source lens 2, a bracket assembly, and an LCD screen 3; The bracket assembly includes a bracket 4, a first mounting component 5, a second mounting component 6, and a third mounting component 7. The bracket 4 includes a first mounting portion 8, a second mounting portion 9, a third mounting portion 10, and a light channel portion 11. The light channel portion 11 is disposed through the first mounting portion 8, the second mounting portion 9, and the third mounting portion 10. The LED light source 1 is disposed on the first mounting portion 8 through the first mounting component 5. The light source lens 2 is disposed on the second mounting portion 9 through the second mounting component 6. The LCD screen 3 is disposed on the third mounting portion 10 through the third mounting component 7. The LED light source 1, the light source lens 2, and the LCD screen 3 are arranged from top to bottom relative to the support assembly; The light channel section 11 allows the light beam from the LED light source 1 to pass through; The light source lens 2 has a light-injecting side and a light-outgoing side. The light-injecting side is set facing the LED light source 1, and the light-outgoing side is set facing the LCD screen 3. The light source lens 2 is used to form a collimated beam of light emitted from the LED light source 1.

[0019] The variable light shape collimating light source assembly of this embodiment adjusts the light from the LED light source 1 through the light source lens 2, that is, the light emitted from the LED light source 1 is formed into a collimated beam, and the overall light energy of the light spot tends to be uniform. The collimated beam is projected onto the display area of ​​the LCD screen 3 to achieve a better display effect. Furthermore, the various components of this application are modularly connected through mounting parts and mounting components, which facilitates installation and disassembly, facilitates manufacturing, and reduces production costs.

[0020] In this embodiment, the specific structure for modular installation and connection of the above components via mounting parts and mounting brackets is as follows: The first mounting part 8 is a groove-shaped structure located at the top of the bracket 4. The circuit board of the LED light source 1 is fitted with the first mounting part 8. The first mounting member 5 is located on the first mounting part 8 and abuts against the circuit board of the LED light source 1. The first mounting member 5 can be connected to the first mounting part 8 by means of a buckle or screw and abut against the circuit board of the LED light source 1.

[0021] Meanwhile, a heat sink 12 is provided on one end of the circuit board of the LED light source 1. The heat sink 12 can also be fixed to the bracket 4 by clips or screws and abut against one end of the circuit board of the LED light source 1 to improve the overall heat dissipation effect.

[0022] The specific mounting structure for the light source lens 2 is as follows: The light source lens 2 has a protruding lens fixing part 201 on both sides, and the second mounting part 9 is a groove-shaped structure located in the middle of the bracket 4 and cooperating with the lens fixing part 201.

[0023] Specifically, the second mounting member 6 is a ring-shaped pressure ring member. The pressure ring member has a pressure ring channel portion for the light beam of the LED light source 1 to pass through. The second mounting member 6 cooperates with the second mounting portion 9 and abuts against the lens fixing portion 201.

[0024] According to the above structure, the light source lens 2 is installed first, then the pressure ring is placed, and then the LED light source 1 is installed, so that the LED light source 1 abuts against the upper end face of the pressure ring and the lower end face of the pressure ring abuts against the lens fixing part 201, thereby fixing the light source lens 2.

[0025] In this embodiment, the body mounting structure of the LCD screen 3 is as follows: The third mounting part 10 is a groove-shaped structure located at the bottom of the bracket 4. The third mounting piece 7 is a ring-shaped fixing piece. The third mounting piece 7 is located at the bottom of the bracket 4 and abuts against the bottom of the LCD screen 3. The third mounting piece 7 can be fixed to the bracket 4 by a buckle or screws, thus fixing the LCD screen 3 inside the third mounting part 10.

[0026] A wiring channel 13 communicating with the third mounting part 10 is provided on the side of the bracket assembly. The wiring channel cooperates with the wiring components of the LCD screen 3 to facilitate the power supply of the LCD screen 3.

[0027] Specifically, the projection light source of LED light source 1 is a monochromatic light source, a red-green-blue light source, or a red-green-blue-white multicolor light source.

[0028] Specifically, the light source lens 2 is a convex lens or a Fresnel lens.

[0029] Specifically, LCD screen 3 is a monochrome negative display LCD screen 3, see [link / reference]. Figure 3 Its display area is composed of many pixels, and the transmittance of each pixel can be independently controlled. The transmittance is lowest when a pixel is not displayed and highest when all pixels are displayed. By adjusting the transmittance through this structural adjustment, the amount of light emitted can be adjusted according to the desired light spot. When used in projection, this can achieve the effect of varying light sources.

[0030] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A variable light shape collimating light source assembly, characterized in that, Includes LED light source, light source lens, bracket assembly and LCD screen; The bracket assembly includes a bracket component, a first mounting component, a second mounting component, and a third mounting component. The bracket component includes a first mounting portion, a second mounting portion, a third mounting portion, and a light channel portion. The light channel portion is disposed through the first mounting portion, the second mounting portion, and the third mounting portion. The LED light source is disposed on the first mounting portion via the first mounting component. The light source lens is disposed on the second mounting portion via the second mounting component. The LCD screen is disposed on the third mounting portion via the third mounting component. The LED light source, light source lens, and LCD screen are arranged from top to bottom relative to the bracket assembly; The light channel section allows the light beam from the LED light source to pass through; The light source lens has a light-injecting side and a light-emission side. The light-injecting side is positioned facing the LED light source, and the light-emission side is positioned facing the LCD screen. The light source lens is used to collimate the light emitted from the LED light source into a collimated beam.

2. The variable light shape collimating light source assembly according to claim 1, characterized in that, The first mounting part is a groove-shaped structure located at the top of the bracket. The circuit board of the LED light source cooperates with the first mounting part. The first mounting member is located in the first mounting part and abuts against the circuit board of the LED light source.

3. The variable light shape collimating light source assembly according to claim 2, characterized in that, A heat sink is provided on one end face of the circuit board of the LED light source.

4. The variable light shape collimating light source assembly according to claim 1, characterized in that, The light source lens has protruding lens fixing parts on both sides, and the second mounting part is a groove-shaped structure located in the middle of the bracket and cooperating with the lens fixing parts.

5. The variable light shape collimating light source assembly according to claim 4, characterized in that, The second mounting component is a ring-shaped pressure ring component, which has a pressure ring channel portion for the light beam of the LED light source to pass through. The second mounting component cooperates with the second mounting portion and abuts against the lens fixing portion.

6. The variable light shape collimating light source assembly according to claim 1, characterized in that, The third mounting part is a groove-shaped structure located at the bottom of the bracket, and the third mounting piece is a ring-shaped fixing piece located at the bottom of the bracket and abutting against the bottom of the LCD screen.

7. The variable light shape collimating light source assembly according to claim 6, characterized in that, The side of the bracket assembly is provided with a wiring channel that communicates with the third mounting part, and the wiring channel cooperates with the wiring components of the LCD screen.

8. The variable light shape collimating light source assembly according to claim 1, characterized in that, The projection light source of the LED light source is a monochromatic light source, a red-green-blue light source, or a red-green-blue-white multicolor light source.

9. The variable light shape collimating light source assembly according to claim 1, characterized in that, The light source lens is a convex lens or a Fresnel lens.

10. The variable light shape collimating light source assembly according to claim 1, characterized in that, The LCD screen is a monochrome negative display LCD screen.

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