What is the Cleaning of Achromatic Doublet Lens Film?The cleaning of achromatic doublet lens can be divided into pre-coating and post-coating. Processors should adopt different cleaning methods according to the different pollutants before and after coat...view
How to Judge whether Achromatic Doublet Lens is Good or not?Achromatic doublet lens is a kind of glass that can change the direction of light transmission and the relative spectrum of ultraviolet, visible or infrared light. In the narrow sense, achromatic bi-...view
Collimator Lemses Achieve Efficient LightingResearchers from information photonics laboratory of Xi’an institute of optical precision machinery, Chinese academy of Sciences have designed collimator lenses with efficient lighting for Led. Recen...view
The Application Market of Germanium Optics WaferThe application market of Infrared optical germanium wafer is wide. In military field, the number of globe armed forces is up to over twenty million, some countries use infrared products very widely. ...view
Germanium WindowDiaphragm is a kind of parallel plate, it is always used as protective window of electronic sensor and external environment detector. Diaphragm will not change the amplification factor, its basic mate...view
Grasping the Deformation and Use Skill of Lens of the CameraPeople have found that image will be out of shape when we use wide-angle lens, which is harldy seen in a medium telephoto lens, that is why many people think wide-angle will make photo out of shape wh...view
Round Concave MirriorsRound concave mirrors are catoptric imaging. Mirrors( including convex) are reflecting back for imaging rather than get through the light, ray of light follows the law of reflection, that is what we c...view
Calcium Fluoride LensesCalcium fluoride lenses can also be fluorite lens. Fluorite is made of CaF2 crystal. Its obvious characteristics are low refractive index and dispersion, good transmittance for infrared ray and ultrav...view
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