Illuminated light source for photosensitive element

Abstract

This invention relates to a lighting source used in image researcher, wherein the device one light sensitive elements are responding to the multiple light sections to restore one image researched. The lighting source comprises one light source and one light conductive element, wherein the light conductive element guides the beam sent by the source to one body to search one image. And one area of the multiple light sections light source has the larger light intensity than the other ones.

Description

technical field [0001] The invention relates to an illuminating light source, especially an illuminating light source used in a photosensitive element. Background technique [0002] At present, the main photosensitive elements are electronic image sensors, such as: photosensitive coupling device (Charge Coupled Device, CCD> and complementary metal oxide semiconductor (Complementary Metal-Oxide Semiconductor, CMOS), and film. The role of electronic image sensors is It converts light into an analog signal output. Taking the pixel of a CMOS sensor as an example, it contains a photodiode to generate a charge proportional to the incident light. When the charge accumulated from the pixel capacitor is transferred to the amplifier (Gain Amplifier ) and the analog / digital converter (A / DConverter), the original signal of the captured image can be formed, and only with these functions can an image sensor be formed. [0003] For the capture of color images, RGB filters are generally...

AI Technical Summary

Problems solved by technology

Although the use of a flash can resolve red light and green light with a brightness of 256 levels under low light conditions, but because the electronic photosensitive element is still not sensitive enough to blue light, the resolution of the brightness of blue light is still less than the brightness of 256 levels.

Therefore, the color can only be represented by R: 100, G: 100, B: 95 or R: 100, G: 100, B: 105, which will cause color cast

[0007] Furthermore, due to the lack of blue brightness details in the image, the actual color that can be represented cannot reach full color, resulting in insufficient color expression and affecting the three-dimensional color of the image, making the image appear rigid

Moreover, the sensitivity of blue light is low, and its red and green gain values ​​must be adjusted accordingly, resulting in a relatively large signal-to-noise ratio (S / Nratio) and affecting image quality

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