The Design Principles of Infrared Optical System
The infrared optical system refers to the system that works in the infrared band of the optical wave, which is the optical system that receives or sends infrared light waves. In general, the infrared ...
Is a Aspherical Camera Lens Better than a Spherical Lens?
The asphericWhen it comes to the lens, you have to mention the aspherical lens. In many people's understanding, the aspherical lens is a symbol of high level, and the advanced lens is almost all asphe...
Pinciple Revelation of Water Dome Lens Hood
Before 1960s, all of the photos from water are through plane, that is to say opening a port on waterproof case for shooting( that is why lens case in English is called “port”). When we use a micro-l...
The Characteristics and Applications of Zinc Selenide Lens
CharacteristicsSmall focused spot with wipe resistance, small power loss with strong photo permeability. As the most economic transmission focus element, lens are suitable for heat treatment with a la...
Calcium Fluoride Lenses
Calcium 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...
Grasping the Deformation and Use Skill of Lens of the Camera
People 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...
Collimator Lemses Achieve Efficient Lighting
Researchers 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...
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...
Composition of Different Achromatic Doublet Lenses
1. Achromatic doublet lens is a kind of common lens. It consists of several groups of positive and negative cemented lenses with different radius of curved surface. It can only correct the axial chrom...
What is the Transmittance of Achromatic Lens?
At present, there are many manufacturers producing achromatic lenses in China. Although the products of each company are called achromatic lenses, the raw materials and technology are quite different,...
Aspherical Lens are Lighter, Thinner, Flatter
The spherical lens is with a constant curvature from the center of the lens to the edge, while the aspherical lens changes continuously from the center to the edge. In photographic lenses, many aberra...
The Introduction of Bandpass Filter
A bandpass filter is a filter that can pass the frequency component within a certain frequency range but attenuate the frequency component of the other range to a very low level. An example of analog ...
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The Design Principles of Infrared Optical System
The infrared optical system refers to the system that works in the infrared band of the optical wave, which is the optical system that receives or sends infrared light waves. In general, the infrared ...
The research of crystal glass with ferroelectric semiconductor photoelectric effect has been develop
The polarized photoelectric crystal glass with non-central symmetric structures are based on the spontaneous polarization, which shows the excellent optical performance of nonlinear optics, piezoelect...
The research of phosphate deep UV optical crystal materials has been developed
Nonlinear optical crystal is an important material of photoelectric information, which has wide application prospects in information, research, energy, industrial manufacturing and medical and health ...
Is a Aspherical Camera Lens Better than a Spherical Lens?
The asphericWhen it comes to the lens, you have to mention the aspherical lens. In many people's understanding, the aspherical lens is a symbol of high level, and the advanced lens is almost all asphe...
The Basis of Light Setting: Analyzing the Design Requirement of Optical Systems
Any kinds of optical instrument's use and service conditions will have a requirement for their optical systems, they can be summarized as the following aspects.1. The basic characteristics of optical ...
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