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Optics Lens

【 Dynamic. Cameras in the filter

by:HENGXIANG     2020-11-19
The secrets of the camera in blue glass filter high-end mobile phones promote when the camera in addition to the 'back', often will take part in 'blue glass filter' a selling point, the following will have a look at this glass with Shanghai optical effect. Apple iPhone 4/4 s beginning 'blue glass filter' was introduced and improved the quality of photography. Then, whether millet 2 is still the meizu MX2, all equipped with 8 million or more pixels high-end phones start popular embedded blue glass filter back according to the type of camera. So that is what exactly does the small blue glass effect, while taking photographs of results and how? Infrared light affect the imaging quality first we need to know some common sense: object in any greater than absolute zero, - 273℃) Under the environment of foreign launch infrared ray; Mobile phone camera to choose is CCD or CMOS sensor; CCD and CMOS sensors can be adjustable to capture all the visible light region and some infrared area. Based on the principle and law of refraction of light can be concluded that the longer the wavelength, the smaller the refractive index; The shorter the wavelength, the greater the refractive index. Therefore, when the light into the mobile phone camera and were together after the camera lens refraction, visible and infrared light in different target surface imaging. In the visible light imaging for colorful pictures, and infrared imaging for the wrong picture. When we by visible light into pictures debugging good, also is the so-called picture gathering and back focal adjustment, the infrared light will be on the target surface constitute a virtual image, and then affect the color of the image and quality. Blue glass filter to prevent the results of infrared target surface caused by the virtual image, is currently the most useful technique after IRCoating coating or add filter to filter out infrared light, to recover the true color of the object, then process the picture color distortion. Blue glass with other filter area is not the same as raw materials. As the leading role of this article, blue glass is blue glass raw materials as raw materials, Usually filter are usually optical glass) Results, it is to rely on 'absorb' method to filter the infrared light. Because the blue wavelengths have higher penetration rate, compared with the red orange glass filter has excellent penetrability, can filter more than 630 nm infrared ( But the promise from ultraviolet to infrared other light through wide band) , and filtering completely. Demand note is that blue glass filter despite the filtering of infrared light, but do not have any current filter can make the object imaging more bright, because of all the filters will absorb some wavelengths and make the dim objects. Shanghai optical co. , LTD is a professional engaged in optical products production and sales of high-tech enterprises, over the years has been for large customers at home and abroad to provide high-quality various optical lenses, prisms, plastic mirror, plane mirror, optical lens and all kinds of optical products, is the world's many well-known optical companies suppliers. Hotline:
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