Chip Type Of Optical Lens

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In general, [url=https://www.honoroptics.com/high-precision-custom-optical-prism/]purchasing laser grade optical prism[/url] can be classified into CCD cameras and CMOS cameras according to chip types, and of course there are other chips, such as Super CCD chips produced by Fuji. Here we only discuss the working principle of mainstream CCD cameras and CMOS cameras. The CCD and CMOS of a digital camera are hidden inside the camera, and even if you have a chance to see what they look like, it is difficult to distinguish.
1.1 CCD chip optical lens:
The working principle of the CCD chip is as shown in the figure:
After the photosensitive image spot receives illumination, the photosensitive element generates a corresponding current, and the current magnitude corresponds to the light intensity, so the electrical signal directly output by the photosensitive element is simulated. In the CCD sensor, each photosensitive element does not further process this, but instead outputs it directly to the vertical register and to the horizontal register to form a uniform output. Since the electrical signal generated by the photosensitive ...
... element is too weak and a large amount of voltage loss is generated in the process, the analog-to-digital conversion cannot be directly performed. Therefore, the output data must be uniformly amplified. This task is performed by the CCD sensor. The amplifier is specifically responsible for, after processing by the amplifier, the electrical signal strength of each pixel is increased by the same amplitude; since the signal is amplified by only one amplifier, less noise is generated. However, since the CCD itself cannot directly convert the analog signal into a digital signal, it also needs a special analog-to-digital conversion chip for processing, and then outputs it to a dedicated DSP processing chip in the form of a binary digital image matrix.
1.2 CMOS chip [url=https://www.honoroptics.com/high-precision-custom-optical-prism/]sale of custom optical prism assemblies[/url]:
The working principle of CMOS optical lens is as shown:
For CMOS sensors, the above workflow is completely inapplicable. Each photosensitive element in the CMOS sensor directly integrates the amplifier and analog-to-digital conversion logic. After the photodiode receives illumination and generates an analog electrical signal, the electrical signal is first amplified by the amplifier in the photosensitive element and then directly converted into a corresponding number. signal. In other words, in a CMOS sensor, each of the photosensitive elements can produce a digital output, and the resulting digital signals are combined and sent directly to the DSP chip for processing. The problem occurs precisely here, and the amplifiers in the CMOS photosensitive elements are analog devices. There is no guarantee that the magnification of each image point will be strictly consistent, so that the enlarged image data cannot represent the original appearance of the captured object - reflected in the output of the latter, that is, a large amount of noise appears in the image, and the quality is significantly lower than that of the [url=https://www.honoroptics.com/high-precision-custom-optical-prism/]high precision custom optical prism[/url]. However, the current technology in this area has been greatly improved.