LED (Light-Emitting Diode) annular light source with improved structure
A ring-shaped light source and a ring-shaped technology, applied in light sources, electric light sources, point light sources, etc., can solve problems such as inconvenient use and management, and increased user costs
Active Publication Date: 2013-12-04
WAVE CREST SHANGHAI
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Problems solved by technology
However, the irradiation angles of the existing LED ring light sources are 0°, 15°, 30°, 45°, 60°, 75°, and 90°, so customers need to be equipped with LED ring light sources with seven irradiation angles, which increases the cost of users. It is also very inconvenient to use and manage
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[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0018] see figure 1 , a LED ring light source with an improved structure is shown in the figure, including a ring heat dissipation substrate 100, a primary condenser lens bracket 200, a cover 300, six light angle refracting lenses 410, 420, 430, 440, 450, 460 and a diffuser Shoot flange plate 500. The refraction angle of light angle refraction lens 410 is 0 °, the refraction angle of light angle refraction lens 420 is 15 °, the refraction angle of light angle refraction lens 430 is 30 °, the refraction angle of light angle refraction lens 440 is 45 °, light angle The refraction angle of the refraction lens 450 is 60°, and the refraction angle of the light angle refraction lens 460 is 75°. Of course, the refraction angle of the light angle refraction lens is any angle from 0° to 90°.
[0019] A number of high-power LED light-emitting elements...
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The invention discloses an LED (Light-Emitting Diode) annular light source with an improved structure. The LED annular light source comprises an annular radiating substrate, a primary condensing lens bracket and a plurality of light angle refraction lenses, wherein a plurality of high-power LED luminous elements are uniformly distributed on the annular radiating substrate; the primary condensing lens bracket is provided with a plurality of condensing lens; the annular radiating substrate is pressed on a condensing lens support inner flange of the primary condensing lens bracket via a cover connected with the condensing lens bracket; different light angle refraction lenses have different irradiation angles. During use, a light angle refraction lens with a desired refraction angle is selected and is pressed on the condensing lens support inner flange of the primary condensing lens bracket via a diffusion flange connected with the condensing lens support inner flange of the primary condensing lens bracket. Only the light angle refraction lenses with different refraction angles need to be selected according to the irradiation angle of the annular light source, so that a user does not need to purchase LED annular light sources of different irradiation angles, and the use cost of the user is reduced.
Description
technical field [0001] The invention relates to the technical fields of machine vision detection and micro-optical lighting, in particular to a structurally improved LED ring light source for object curved surface visual detection. Background technique [0002] At present, domestic machine vision inspection technology has been widely used in quality inspection. Machine vision inspection is to quickly obtain a picture of the surface characteristics of the object to be inspected through the configured CCD camera system, and analyze it through the vision system to judge whether the surface quality of the object is qualified. For objects with non-flat curved surfaces, in order to ensure that the CCD camera system can obtain clear and uniform gray images of the middle and edge features of the object surface, and the light source of its visual inspection system generally uses LED ring light sources for active lighting. However, the irradiation angles of the existing LED ring ligh...
Claims
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IPC IPC(8): F21S2/00F21V5/04F21V29/00F21Y101/02F21V29/70
Inventor 邵幼平童雷
Owner WAVE CREST SHANGHAI