Variable grating combined module and detection method
A combined mode and grating technology, applied in the field of optical detection
Pending Publication Date: 2022-04-12
东莞创视自动化科技有限公司
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Problems solved by technology
[0004] Aiming at the deficiencies of the prior art, the present invention provides a variable grating combination module and a detection method, which solves the problems raised in the above-mentioned background technology
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0031] see Figure 1-8 , the present invention provides a technical solution: variable grating combination module and detection method, including two sets of L-shaped side plates 1, the rear top and front end of the two sets of L-shaped side plates 1 are respectively provided with A light source 2A and B light source 2a, a first grating plate 3 is provided under the A light source 2A, a second grating plate 4 is provided behind the B light source 2a, and sever...
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The invention discloses a variable grating combined module and a detection method, and relates to the technical field of optical detection.The variable grating combined module comprises two L-shaped side plates, a light source A and a light source B are arranged at the tops of the rear ends and the front ends of the two L-shaped side plates respectively, the light source A and the light source B are controlled by an external light source controller to be lightened in different time sequences, and then the light source A generates light rays; a part of light passes through the plurality of groups of first grating grooves, is refracted twice by the first spectroscope and the second spectroscope to form light and shade staggered light, and passes through the through groove to irradiate the surface of the reflective material to be detected; the light source B generates light, part of the light penetrates through the second grating grooves, penetrates through the first spectroscope and is refracted through the second spectroscope to form light and shade staggered light, and the light and shade staggered light penetrates through the through groove to irradiate the surface of the reflective material to be detected. An image is formed on the surface of the to-be-detected reflective material through natural light and reflected to naked eyes or a detection imaging device, and whether deformation or pits exist is analyzed.
Description
technical field [0001] The invention relates to the technical field of optical detection, in particular to a variable grating combination module and a detection method. Background technique [0002] The existing published patent OLED screen polarized coaxial structured light detection method and OLED screen polarized light detection device (publication number: CN110208287A), the detection method is to use the coaxial natural light and polarized light to illuminate the OLED screen at the same time, and the polarized light is in the structure grating Under the action of the OLED screen, the glass substrate of the OLED screen is projected onto the organic material coating inside the OLED screen. The grating image of the defective part of the organic material coating will produce geometric deformation, and the geometric deformation will be reflected to the human eye or detection imaging device through natural light. . The purpose of OLED screen defect detection is achieved by p...
Claims
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Inventor 刘康生
Owner 东莞创视自动化科技有限公司