Method for measuring relative brightness of surface of original manuscript
A technology of relative brightness and measurement method, applied in image communication, electrical components, etc., can solve problems such as collision or affecting light source components, inconvenient measurement methods, etc.
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[0026] Some embodiments of the present invention will be described in detail below. However, in addition to the detailed description, the present invention can also be widely implemented in other embodiments, and the scope of the present invention is not limited by them, but is subject to the patent protection scope defined by the claims.
[0027] In addition, to provide a clearer description and easier understanding of the present invention, various parts of the scanning light source have not been drawn to size, some dimensions have been exaggerated compared to other relevant dimensions; irrelevant details have not been fully drawn, For simplicity of illustration.
[0028] When a light source illuminates an object, there are three types of interactions between the light source and the object: transmission, reflection, and absorption. Different objects have different ratios of transmission, reflection and absorption for light of different frequencies, but there will be the fo...
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