LED lighting lens support

Abstract

The utility model relates to the technical field of optical imaging, in particular to an LED (light-emitting diode) illuminating lens bracket, which comprises an imaging lens; the connecting piece is connected to the end part of the imaging lens, and a total reflection prism is arranged in the connecting piece; one end of the illumination lens is connected to the connecting piece, and the other end of the illumination lens is connected with LED light; the fixing support comprises a supporting part and a fixing part, the supporting part is arranged in the axial direction perpendicular to the imaging lens, and the fixing part is arranged on the supporting part and arranged on the outer wall face of the illumination lens in a surrounding mode so that the illumination lens can be arranged in an inclined mode. The DMD imaging system can cover a wider area, and the intensity and direction of the LED light are ensured by accurately regulating and controlling the direction and angle of the light, so that the resolution of an image is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical imaging, in particular to an LED lighting lens bracket. Background Art

[0002] DMD is composed of numerous small aluminum reflective mirrors, each of which represents a pixel. By controlling the rotation and time domain response of these micro-lenses, light can be precisely modulated to achieve high-quality image display and projection. Traditional LED lighting lens holders mainly focus on structural stability and heat dissipation performance, while LED lighting lens holders based on DMD technology pay more attention to precise control of light and imaging quality. DMD imaging technology can achieve precise modulation of incident light through its high-speed digital light reflection switch array. In LED lighting lenses, the lighting effect is poor due to the relatively scattered light, and the brightness of LED light sources is usually low. As a result, in DMD imaging systems, it is difficult to achieve the same brightness level as laser when using LED lighting. In addition, the light of LED lamps is relatively divergent, the directionality is unclear, and the insufficient numerical aperture leads to insufficient image resolution.

[0003] Therefore, the present application has developed an LED lighting lens bracket to solve the problems existing in the prior art. Utility Model Content

[0004] The purpose of the utility model is to provide an LED lighting lens bracket to solve the problems of insufficient image resolution caused by LED lighting light dispersion and insufficient numerical aperture in the prior art.

[0005] The technical solution of the utility model is: an LED lighting lens bracket, comprising:

[0006] Imaging lens;

[0007] A connecting piece connected to the end of the imaging lens, wherein a total reflection prism is provided in the connecting piece;

[0008] A lighting lens, one end of which is connected to the connector and the other end of which is connected to an LED light;

[0009] The fixing bracket includes a supporting portion and a fixing portion. The supporting portion is arranged along an axial direction perpendicular to the imaging lens. The fixing portion is arranged on the supporting portion and is circled on the outer wall surface of the lighting lens, so that the lighting lens is arranged at an angle.

[0010] Preferably, the support part includes a first bracket and a second bracket, the first bracket includes a first support ring and a first clamping ring, the second bracket includes a second support ring and a second clamping ring, one end of the annular surface of the first support ring and the second support ring matches the outer wall surface of the lighting lens, and the other end opposite to the annular surface is fixed on the fixing part, and the first support ring and the second support ring have a height difference, so that the end of the lighting lens away from the connecting member is higher than the position connected to the connecting member.

[0011] Preferably, the fixing portion is provided with a slide groove along the length direction of the fixing portion, and the first support ring and the second support ring are slidably arranged on the slide groove by screws to change the tilt angle of the lighting lens.

[0012] Preferably, when the first bracket and the second bracket slide, the angle of the lighting lens ranges from 3 degrees to 5 degrees.

[0013] Preferably, a slot is provided at the connection position between the lighting lens and the connecting member, the slot is arranged along the axial direction of the imaging lens, and a screw passes through the corresponding slot to fix the lighting lens on the connecting member.

[0014] Preferably, the first support ring and the first clamping ring are detachably connected, and the second support ring and the second clamping ring are detachably connected. When the lighting lens is fixed, there is no gap at the connection between the first support ring and the first clamping ring, and there is no gap at the connection between the second support ring and the second clamping ring.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] (1) A total reflection prism is provided in the connector to reflect the light from the LED onto the DMD chip, and the projection angle of the light is changed by tilting the lighting lens relative to the support portion, so that the DMD imaging system can cover a wider area. By precisely controlling the direction and angle of the light, the intensity and direction of the LED light are guaranteed, thereby improving the resolution of the image. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 This is a structural diagram of the fixing bracket and the lighting lens of the utility model;

[0019] Figure 2 This is a structural diagram of an LED lighting lens bracket described in the present utility model;

[0020] Figure 3 This is a bottom view of the fixing bracket of the utility model;

[0021] Figure 4 This is a side view of the lighting lens and the connecting piece of the utility model.

[0022] Among them: 1. Imaging lens; 2. Connector; 21. Slot; 3. Illuminating lens; 4. Fixed bracket; 41. Support portion; 411. First bracket; 4111. First support ring; 4112. First clamping ring; 412. Second bracket; 4121. Second support ring; 4122. Second clamping ring; 42. Fixed portion; 421. Slide groove. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0024] like Figure 1-Figure 2 As shown, an LED lighting lens bracket includes an imaging lens 1, a connecting member 2, a lighting lens 3, and a fixing bracket 4. The connecting member 2 is connected to the end of the imaging lens 1, and a DMD chip is provided on the side opposite to the imaging lens 1. The lighting lens 3 is connected to the connecting member 2. When the LED light is irradiated into the connecting member 2 through the lighting lens 3, the light is totally reflected by the total reflection prism to the DMD chip. After passing through the DMD chip, the image is reflected to the imaging lens 1, realizing the imaging of the image on the DMD chip. The total reflection is achieved by the total reflection prism, so that there is almost no energy loss during the transmission process of the light. Moreover, since the total reflection prism can efficiently reflect light, it can improve the utilization efficiency of light energy and improve the brightness of the lighting.

[0025] Among them, a fixing bracket 4 is provided on the connecting member 2, and the fixing bracket 4 includes a supporting part 41 and a fixing part 42. The supporting part 41 is arranged along the axis perpendicular to the imaging lens 1, and the fixing part 42 is arranged on the outer wall surface of the lighting lens 3, fixing the lighting lens 3 on the supporting part 41, and making the lighting lens 3 tilted relative to the supporting part 41. The tilted lighting lens 3 is combined with the total reflection prism to more accurately control the direction and angle of light, reduce the loss of light in the transmission process, and improve the utilization rate of light. The tilted lighting lens 3 is used to change the projection angle of light, so that the DMD imaging system can cover a wider area. By accurately controlling the direction and angle of light, the tilted lighting lens 3 is combined with the total reflection prism to reduce the aberration and distortion in the image. The control of light angle and reduction of light intensity loss are achieved through the total reflection prism and the tilted lighting lens 3, which can increase the numerical aperture and thus improve the resolution of the image.

[0026] Furthermore, the supporting portion 41 includes a first bracket 411 and a second bracket 412. The first bracket 411 includes a first supporting ring 4111 and a first clamping ring 4112. The second bracket 412 includes a second supporting ring 4121 and a second clamping ring 4122. One end of the first supporting ring 4111 and the second supporting ring 4121 is fixed on the fixing portion 42. The annular surfaces of the first supporting ring 4111 and the second supporting ring 4121 match the outer wall surface of the lighting lens 3. There is a height difference between the first supporting ring 4111 and the second supporting ring 4121, so that the end of the lighting lens 3 away from the connecting member 2 is higher than the position connected to the connecting member 2. Through the support of the two supporting rings, the stability of the lighting lens 3 can be increased and its shaking or displacement during operation can be reduced. The end of the lighting lens 3 away from the connecting member 2 is higher than the connection position, which helps to optimize the distribution of light, so that the light is more evenly irradiated to the target area, improving the lighting effect. At the same time, it can also enable the lighting lens 3 to maintain a more stable posture during operation, thereby reducing the offset of the light spot.

[0027] like Figure 3 As shown, in order to facilitate the adjustment of the angle of the lighting lens 3 so as to adapt to different application scenarios, a slide groove 421 is provided along the length direction of the fixing portion 42, and the first support ring 4111 and the second support ring 4121 are fixed to the corresponding slide groove 421 by screws. The first support ring 4111 and the second support ring 4121 slide on the slide groove 421 by screws to achieve different angles of the lighting lens 3 and achieve better imaging effects. The angle range of the lighting lens 3 relative to the fixing portion 42 is between 3 degrees and 5 degrees. Through the design of the slide groove 421 and the screws, the first support ring 4111 and the second support ring 4121 can be easily slid on the fixing portion 42 to adjust the angle of the lighting lens 3. The angle adjustment range is limited to between 3 degrees and 5 degrees, which not only ensures the flexibility of adjustment, but also avoids distortion or instability of the lighting effect caused by excessively large angles.

[0028] Further, if Figure 4 As shown, a slot 21 is provided at the connection position between the lighting lens 3 and the connector 2, and the slot 21 is arranged along the axial direction of the imaging lens 1. The lighting lens 3 is fixed to the connector 2 by screws. By moving the position of the lighting lens 3 in the slot 21, the position of the lighting lens 3 and the connector 2 is changed, and the angle of the light can be adjusted. The slot 21 enables the lighting lens 3 to be fine-tuned at the connection position to adapt to different installation needs or lighting requirements. The slot 21 arranged along the axial direction can conveniently adjust the position or angle of the lighting lens 3, thereby achieving more precise calibration and ensuring that the lighting effect matches the field of view of the imaging lens 1.

[0029] In order to ensure the stability of the lighting lens 3, the first support ring 4111 and the first clamping ring 4112 are detachably connected, and the second support ring 4121 and the second clamping ring 4122 are detachably connected. When the lighting lens 3 is fixed, there is no gap at the connection between the first support ring 4111 and the first clamping ring 4112, and there is no gap at the connection between the second support ring 4121 and the second clamping ring 4122. The seamless connection ensures a close fit between the support ring and the clamping ring, thereby improving the support stability of the lighting lens 3 and preventing the lens from shaking or falling off during operation.

[0030] 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 lighting lens bracket, characterized in that: include: Imaging lens (1); A connecting member (2) is connected to the end of the imaging lens (1), and a total reflection prism is provided in the connecting member (2); A lighting lens (3), one end of which is connected to the connecting member (2) and the other end of which is connected to an LED light; A fixing bracket (4), the fixing bracket (4) comprising a supporting portion (41) and a fixing portion (42), the supporting portion (41) being arranged along an axial direction perpendicular to the imaging lens (1), the fixing portion (42) being arranged on the supporting portion (41) and being arranged around the outer wall surface of the lighting lens (3), so that the lighting lens (3) is arranged in an inclined manner.

2. The LED lighting lens holder according to claim 1, characterized in that: The support portion (41) comprises a first bracket (411) and a second bracket (412), the first bracket (411) comprises a first support ring (4111) and a first clamping ring (4112), the second bracket (412) comprises a second support ring (4121) and a second clamping ring (4122), one end of the annular surface of the first support ring (4111) and the second support ring (4121) matches the outer wall surface of the lighting lens (3), and the other end opposite to the annular surface is fixed to the fixing portion (42), and the first support ring (4111) and the second support ring (4121) have a height difference, so that the end of the lighting lens (3) away from the connecting member (2) is higher than the position connected to the connecting member (2).

3. The LED lighting lens holder according to claim 2, characterized in that: The fixing portion (42) is provided with a sliding groove (421) along the length direction of the fixing portion (42); the first support ring (4111) and the second support ring (4121) are slidably arranged on the sliding groove (421) by means of screws, thereby changing the tilt angle of the lighting lens (3).

4. The LED lighting lens holder according to claim 3, characterized in that: When the first bracket (411) and the second bracket (412) slide, the angle of the lighting lens (3) ranges from 3 degrees to 5 degrees.

5. The LED lighting lens holder according to claim 1, characterized in that: A slot (21) is provided at the connection position between the lighting lens (3) and the connecting member (2), the slot (21) being arranged along the axial direction of the imaging lens (1), and a screw passing through the corresponding slot (21) fixes the lighting lens (3) to the connecting member (2).

6. The LED lighting lens holder according to claim 2, characterized in that: The first support ring (4111) and the first clamping ring (4112) are detachably connected, and the second support ring (4121) and the second clamping ring (4122) are detachably connected. When the lighting lens (3) is fixed, there is no gap at the connection between the first support ring (4111) and the first clamping ring (4112), and there is no gap at the connection between the second support ring (4121) and the second clamping ring (4122).

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