LED position adjusting device
By designing an LED position adjustment device, the problem that the traditional LED light source installation method cannot be adjusted is solved, and the uniformity of light distribution and imaging quality are improved, which is suitable for the field of optical imaging technology.
Patent Information
- Application Number
- CN202422963347.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-02
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-12-02
AI Technical Summary
The traditional LED light source installation method cannot be flexibly adjusted, resulting in problems such as uneven light distribution and blurred image edges during DMD imaging. Especially in multi-DMD imaging systems, the adjustment of the LED light source position is complex, affecting the imaging quality.
An LED position adjustment device is designed, including an illumination lens, a light homogenizer, and an adjustment part. By adjusting the position of the LED light source in two directions, it is ensured that the light is always projected onto the end face of the light homogenizer. The first and second adjustment slots are used to achieve precise adjustment and improve the uniformity of light distribution.
The precise position adjustment of the LED light source is achieved to ensure that the light is evenly distributed on the DMD, thereby improving the imaging quality and light efficiency and reducing light waste.
Smart Images
Figure CN223333222U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of optical imaging, in particular to an LED position adjustment device. Background Art
[0002] During DMD imaging, the position of the LED light source has a significant impact on image clarity and brightness uniformity. Traditional LED light source installation methods are mostly fixed, making them inflexible and inflexible to the actual needs of DMD imaging. This often leads to problems such as uneven light distribution and blurred image edges during DMD imaging, seriously affecting image quality.
[0003] Especially in multi-DMD imaging systems, where multiple DMD chips must work together to achieve higher resolution and brighter image output, adjusting the position of the LED light source becomes more complex and critical. If the position of the LED light source cannot be precisely adjusted, problems such as uneven brightness and color distortion will occur in the overlapping areas of light from multiple DMD chips, further affecting the overall imaging effect.
[0004] Therefore, the present application develops an LED position adjustment device to solve the problems existing in the prior art. Utility Model Content
[0005] The purpose of the utility model is to provide an LED position adjustment device to solve the problem of uneven light distribution caused by using LED light sources for imaging in the prior art.
[0006] The technical solution of the utility model is an LED position adjustment device, comprising: a lighting lens, an LED light source and an adjustment part, a light homogenizing rod is provided in the lighting lens and is located at the center of the lighting lens, a connecting part is provided at the light inlet of the lighting lens, the connecting part is connected to the adjusting part, the adjusting part is provided with a through hole, and the through hole is communicated with the light inlet of the lighting lens, an LED light source is provided on a side of the adjusting part away from the lighting lens, the LED light source irradiates light into the lighting lens through the through hole, and a first adjustment groove and a second adjustment groove are provided at the connection position between the adjusting part and the connecting part, so that the adjusting part can move relative to the lighting lens in two directions.
[0007] Preferably, the adjustment part includes a first adjustment plate and a second adjustment plate, the first adjustment plate is provided with limit blocks at both ends along the length direction, and the connecting part is provided with limit grooves matching the limit blocks at both ends along the length direction. When the limit blocks are set in the limit grooves, the first adjustment plate moves along the length direction of the connecting part and in two directions perpendicular to the length direction.
[0008] Preferably, the first adjustment slot is located on a side of the first adjustment plate away from the lighting lens, a plurality of first adjustment slots are arranged along the length direction of the connecting portion and are located at the four corners of the first adjustment plate, and the first adjustment plate is fixed to the adjustment portion by screws passing through the corresponding first adjustment slots.
[0009] Preferably, the second adjustment slot is located on the second adjustment plate, the second adjustment slot is arranged perpendicular to the first adjustment slot, and is located at the four corners of the second adjustment plate, and the second adjustment plate is fixed to the first adjustment plate by screws passing through the second adjustment slot.
[0010] Preferably, the LED light source is fixed at the center of the second adjustment plate, and the light emitted by the LED light source is square and corresponds to the end face of the light homogenizing rod, and the area is smaller than the end face area of the light homogenizing rod.
[0011] Preferably, the contact surfaces of the first adjustment plate and the second adjustment plate are respectively provided with an abutting groove and an abutting block, and the abutting groove and the abutting block abut against each other, so that the first adjustment plate and the second adjustment plate move together.
[0012] Compared with the prior art, the advantages of the present invention are:
[0013] (1) A light homogenizer is set in the lighting lens. By adjusting the position of the LED light source in the connector in two directions, the brightness of the LED light source and the irradiation direction of the LED light source are precisely controlled so that the light is always projected on the end face of the light homogenizer and the light spot is covered on the DMD, thereby ensuring the uniformity of the light distribution and brightness on the DMD. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0015] Figure 1 This is a structural diagram of an LED position adjustment device according to the present invention;
[0016] Figure 2 This is a right side view of an LED position adjustment device according to the present invention;
[0017] Figure 3 This is a cross-sectional view of an LED position adjustment device according to the present invention;
[0018] Figure 4 This is a left side view of an LED position adjustment device according to the present invention;
[0019] Figure 5 This is a side view of an LED position adjustment device described in the present invention.
[0020] Among them: 1. lighting lens; 11. light homogenizing rod; 12. connecting part; 13. limiting groove; 2. LED light source; 3. adjusting part; 31. through hole; 32. first adjusting plate; 321. abutting groove; 33. second adjusting plate; 331. abutting block; 34. limiting block; 4. first adjusting groove; 5. second adjusting groove. DETAILED DESCRIPTION
[0021] The following is a further detailed description of the present invention in conjunction with specific embodiments:
[0022] like Figure 1-Figure 3 As shown, an LED position adjustment device includes an illumination lens 1, an LED light source 2 and an adjustment part 3. A light homogenizing rod 11 is provided in the illumination lens 1 and is located at the center of the illumination lens 1. A connecting part 12 is provided at the light inlet position of the illumination lens 1, and an adjustment part 3 is also provided on the connecting part 12. An LED light source 2 is provided on a side of the adjustment part 3 away from the illumination lens 1. The LED light source 2 emits light to the illumination lens 1 through a through hole 31 on the adjustment part 3. The light enters the illumination lens 1 after passing through the light homogenizing rod 11. The light homogenizing rod 11 converts uneven light into uniform light, thereby improving the uniformity of light. It is necessary to always irradiate the light emitted by the LED light source 2 on the end face of the light homogenizing rod 11, and a first adjustment groove 4 and a second adjustment groove 5 are provided at the connection position of the adjustment part 3 and the connecting part 12. The position of the LED light source 2 is adjusted by the first adjustment groove 4 and the second adjustment groove 5. By fine-tuning in two directions, the light emitted by the LED light source 2 can be relative to the position of the light homogenizing rod 11 in the illumination lens 1, thereby further optimizing the light distribution and lighting effect.
[0023] Furthermore, the LED light source 2 is fixed at the center of the second adjustment plate 33. The light emitted by the LED light source 2 is square and corresponds to the end face of the homogenizer rod 11, and its area is smaller than the end face area of the homogenizer rod 11. The square light spot corresponds to the shape of the end face of the homogenizer rod 11, which helps the light to enter the homogenizer rod 11 more effectively. Since the area of the LED light source 2 is smaller than the end face area of the homogenizer rod 11, the light can be more fully diffused and uniformed inside the homogenizer rod 11, reducing the overflow and loss of light at the edge, reducing the waste of light during transmission, and improving the light efficiency of the entire lighting system.
[0024] In this embodiment, Figure 1-Figure 2As shown, the adjustment part 3 includes a first adjustment plate 32 and a second adjustment plate 33, the first adjustment slot 4 is located on the side of the first adjustment plate 32 away from the lighting lens 1, and the second adjustment slot 5 is located on the second adjustment plate 33, the first adjustment slot 4 is arranged along the length direction of the connecting part 12, the second adjustment slot 5 is perpendicular to the first adjustment slot 4, and the first adjustment slot 4 and the second adjustment slot 5 are both located at the four corners of the adjustment part 3, and tightening the screws will fix the first adjustment plate 32 and the second adjustment plate 33, and after loosening the screws, the first adjustment plate 32 can be adjusted to move along the length direction of the first adjustment slot 4, and the second adjustment plate 33 can be adjusted to move along the length direction of the second adjustment slot 5, thereby adjusting the movement of the LED light source 2 located in the adjustment part 3, so as to achieve the purpose of adjusting the position of the LED light source 2 to realize light irradiation on the end face of the homogenizing rod 11.
[0025] Among them, the mutually perpendicular arrangement of the first adjustment slot 4 and the second adjustment slot 5 enables the adjustment part 3 to be adjusted in two mutually perpendicular directions, providing the LED light source 2 with higher adjustment accuracy and flexibility, and can adapt to more complex installation and adjustment requirements. At the same time, it can find the best installation position more quickly, thereby improving the adjustment efficiency. The first adjustment slot 4 and the second adjustment slot 5 are both located at the four corners of the adjustment part 3, which helps to enhance the overall structural stability of the adjustment part 3. By dispersing stress, the risk of deformation or damage caused by the adjustment process can be reduced.
[0026] Furthermore, if Figure 4 As shown, the first adjustment plate 32 is provided with limit blocks 34 at both ends along the length direction, and the connecting part 12 is provided with limit grooves 13 matching the limit blocks 34 at both ends along the length direction. When the first adjustment plate 32 is installed on the connecting part 12, the limit block 34 is located in the limit groove 13, and the distance between the outer surface of the limit block 34 and the inner surface of the limit groove 13 is adjusted by screws. The cooperation between the limit block 34 and the limit groove 13 plays a role of positioning and fixing. When the first adjustment plate 32 is installed on the connecting part 12, the limit block 34 can be accurately inserted into the limit groove 13 to ensure that the first adjustment plate 32 is in the correct position. By adjusting the distance between the outer surface of the limit block 34 and the inner surface of the limit groove 13 by screws, the position of the first adjustment plate 32 can be fine-tuned, further improving the accuracy of the position of the LED light source 2, and accurately irradiating the light on the end face of the light homogenizing rod 11 without offset.
[0027] like Figure 5As shown, in order to enable the first adjustment plate 32 and the second adjustment plate 33 to move together and slide against each other, the contact surfaces of the first adjustment plate 32 and the second adjustment plate 33 are respectively provided with abutment grooves 321 and abutment blocks 331. The matching design of the abutment grooves 321 and the abutment blocks 331 enables the first adjustment plate 32 and the second adjustment plate 33 to achieve relative sliding while maintaining overall mobility, ensuring that the two can move as a whole when needed, and allowing them to adjust their relative positions under specific circumstances, thereby improving the overall flexibility and being able to adapt to the needs of different scenarios.
[0028] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it accordingly, and they are not intended to limit the scope of protection of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention.
Claims
1. An LED position adjustment device, characterized in that: include: An illumination lens (1), an LED light source (2) and an adjustment portion (3); a light homogenizing rod (11) is provided in the illumination lens (1) and is located at the center of the illumination lens (1); a connecting portion (12) is provided at the light inlet of the illumination lens (1); the connecting portion (12) is connected to the adjustment portion (3); the adjustment portion (3) is provided with a through hole (31); the through hole (31) is communicated with the light inlet of the illumination lens (1); an LED light source (2) is provided on a side of the adjustment portion (3) away from the illumination lens (1); the LED light source (2) irradiates light into the illumination lens (1) through the through hole (31); a first adjustment slot (4) and a second adjustment slot (5) are provided at the connection position between the adjustment portion (3) and the connecting portion (12), so that the adjustment portion (3) can move relative to the illumination lens (1) in two directions.
2. The LED position adjustment device according to claim 1, characterized in that: The adjusting portion (3) comprises a first adjusting plate (32) and a second adjusting plate (33); the first adjusting plate (32) is provided with limiting blocks (34) at both ends along the length direction; the connecting portion (12) is provided with limiting grooves (13) matching the limiting blocks (34) at both ends along the length direction; when the limiting blocks (34) are arranged in the limiting grooves (13), the first adjusting plate (32) moves along the length direction of the connecting portion (12) and in two directions perpendicular to the length direction.
3. The LED position adjustment device according to claim 2, characterized in that: The first adjustment slot (4) is located on a side of the first adjustment plate (32) away from the lighting lens (1), a plurality of the first adjustment slots (4) are arranged along the length direction of the connecting portion (12) and are located at the four corners of the first adjustment plate (32), and the first adjustment plate (32) is fixed to the adjustment portion (3) by screws passing through the corresponding first adjustment slots (4).
4. The LED position adjustment device according to claim 2, characterized in that: The second adjustment slot (5) is located on the second adjustment plate (33), the second adjustment slot (5) is arranged perpendicular to the first adjustment slot (4), and is located at the four corners of the second adjustment plate (33), and the second adjustment plate (33) is fixed to the first adjustment plate (32) by screws passing through the second adjustment slot (5).
5. The LED position adjustment device according to claim 2, characterized in that: The LED light source (2) is fixed at the center of the second adjustment plate (33); the light emitted by the LED light source (2) is square and corresponds to the end face of the light homogenizing rod (11), and the area is smaller than the end face area of the light homogenizing rod (11).
6. The LED position adjustment device according to claim 2, characterized in that: The contact surfaces of the first adjustment plate (32) and the second adjustment plate (33) are respectively provided with an abutment groove (321) and an abutment block (331); the abutment groove (321) and the abutment block (331) abut against each other, so that the first adjustment plate (32) and the second adjustment plate (33) move together.