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Linear coaxial light source

A technology of coaxial light source and linear shape, applied in the field of light source, can solve problems such as poor stability, uneven image, pattern, etc., and achieve good uniformity and good stability

Active Publication Date: 2015-07-01
GUANGDONG AOPUTE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the prior art, the light emitted by the focusing column has problems of poor uniformity and poor stability; the prior art provides illumination for the line-scan camera, and if the detection target has a strong reflection, the image collected by the line-scan camera will There will be local leakage of lights and glare lights, while other parts will have insufficient brightness, and there will be image unevenness and patterns caused by inconsistent local lighting.

Method used

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  • Linear coaxial light source
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  • Linear coaxial light source

Examples

Experimental program
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Effect test

Embodiment 1

[0034] see Figure 1 to Figure 5 . The linear coaxial light source of this embodiment includes a housing 10, a light emitting diode (LED) 11, and a light-concentrating column 12. The housing 10 is provided with an accommodation cavity, the light-emitting diode 11 is arranged at the bottom of the accommodation cavity, and the light-condensing column 12 is arranged in the accommodation At the front of the cavity, the linear coaxial light source further includes a diffuser 13 , which is arranged at the front of the cavity, and the diffuser 13 is located in front of the condensing column 12 . Here, the light emitting direction is taken as the "front" orientation.

[0035] The light emitted by the light-emitting diode 11 is converged by the light-condensing column 12 to form a linear light source. A scattering plate 13 is arranged in front of the light-condensing column 12, and the light emitted from the light-condensing column 12 will form a uniform light after passing through th...

Embodiment 2

[0044] see figure 1 figure 2 . In this embodiment, in order to further improve the uniformity of light, a diffuser plate 14 can be added on the basis of embodiment 1. The diffuser plate 14 is arranged at the rear of the accommodating cavity, between the light-emitting diodes 11 and the condensing columns 12 , the light emitted by the light emitting diode 11 passes through the diffuser plate 14 to form a uniform light, thereby improving the light output effect. Wherein, the rear part of the accommodating chamber is provided with a diffuser plate slot, and the diffuser plate 14 is inserted into the diffuser plate slot; the diffuser plate 14 is conveniently assembled and disassembled from the accommodating cavity by means of the slot.

[0045] It should be noted that the main function of the diffuser 14 is to convert the light emitted by the LED 11 into diffused light to increase uniformity; if the present invention does not use the diffuser 14, higher brightness can be obtain...

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Abstract

The invention discloses a linear coaxial light source comprising a shell, a light emitting diode and a light collecting column. The shell is provided with a holding cavity, the light emitting diode is arranged at the bottom of the holding cavity, and the light collecting column is arranged on the front portion of the holding cavity. The linear coaxial light source further comprises a scattering plate which is arranged on the front portion of the holding cavity and in front of the light collecting column. By arranging the scattering plate in front of the light collecting column, light rays emitted from the light collecting column penetrate the scattering plate to form uniform light rays. Light rays emitted by the linear coaxial light source are good in uniformity and stability.

Description

technical field [0001] The invention relates to the technical field of light sources, in particular to a linear coaxial light source. Background technique [0002] At present, line scan cameras are used in many production lines. The image acquisition speed of line scan cameras is generally very fast. Therefore, additional light source lighting is required to provide sufficient brightness and form a good lighting effect. The existing linear coaxial light source includes a housing, a light-emitting diode, and a light-concentrating column. The converging beams form a linear light source, and the beams emit light directly to the outside. However, in the prior art, there are problems of poor uniformity and poor stability in the light emitted by the focusing column; the prior art provides illumination for the line array camera, and if the detection target has a strong reflection, the image collected by the line array camera will There will be local leakage of lights and glare li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F21S8/00F21V13/00G03B15/05F21Y101/02
Inventor 卢盛林
Owner GUANGDONG AOPUTE TECH CO LTD