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Annular LED (light emitting diode) illumination plate

A LED lighting and ring-shaped technology, which is applied in the direction of lighting devices, lighting auxiliary devices, lighting and heating equipment, etc., can solve the problems of high price, focusing points, light spots, halos, affecting image analysis and processing, etc., and achieve structural design Reasonable, improve the uniformity, reduce the effect of light leakage

Inactive Publication Date: 2011-05-25
杭州浩通仪器仪表有限公司
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

However, the LED light sources used in ordinary image analysis instruments are mostly products of foreign manufacturers with better performance, and the price is relatively high, and they cannot be customized according to actual use requirements.
[0003] Another problem existing in the LED lighting source used for image analysis instruments in the prior art is the uniformity of illumination. Usually, there are light spots, light spots, and halos in the direction of illumination, which affect the later image analysis and processing.

Method used

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  • Annular LED (light emitting diode) illumination plate
  • Annular LED (light emitting diode) illumination plate
  • Annular LED (light emitting diode) illumination plate

Examples

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Embodiment

[0014] Example: see Figure 1 ~ Figure 3 , The embodiment of the present invention includes a board body 1, the board body 1 is ring-shaped, and 12 LED installation holes 2 are opened on the board body 1. The centers of the 12 LED installation holes 2 are on the same circle. LED mounting hole 2 is used to install the LED on the PCB.

[0015] There are also four screw mounting holes 3 on the board body 1 for fixing the embodiment on the PCB board.

[0016] The double-sided diffuse reflection coating can be painted on this embodiment, which not only improves the efficiency of illumination, but also ensures the uniformity of illumination.

[0017] In use, this embodiment is fixed on the PCB, and each LED on the PCB is located on the corresponding LED installation hole 2 . The LEDs are arranged in a ring shape, which greatly improves the uniformity of illumination of the light source on the entire field of view and reduces light leakage in non-irradiated areas.

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Abstract

The invention relates to an annular LED (light emitting diode) illumination plate which is used in an image analysis instrument. The annular LED illumination plate comprises a plate body, and is characterized in that the plate body is annular, and multiple LED installing holes are arranged on the plate body. The structural design of the annular LED illumination plate provided by the invention is reasonable, the LEDs are arranged in an annular manner, the illumination uniformity of the whole field of view by a light source is improved greatly, and the light leakage phenomenon in a non-illumination zone is reduced.

Description

technical field [0001] The invention relates to a ring-shaped LED lighting board, which is used in an image analysis instrument. Background technique [0002] At present, the common LED lighting sources in the domestic and foreign markets are mostly imported light sources for on-line detection of industrial assembly lines, backlights of display equipment, and professional instruments. However, the LED light sources used in ordinary image analysis instruments are mostly products of foreign manufacturers with better performance, and the price is relatively high, and they cannot be customized according to actual use requirements. [0003] Another problem existing in the LED lighting source used for image analysis instruments in the prior art is the uniformity of illumination. Usually, there are light spots, spots, and halos in the direction of illumination, which affect the later image analysis and processing. Contents of the invention [0004] The technical problem to be so...

Claims

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Application Information

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IPC IPC(8): F21V21/00F21Y101/02F21Y115/10
Inventor 陈浩
Owner 杭州浩通仪器仪表有限公司
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