Application prospect of nanocrystalline materials
Nanocrystalline material is a crystal glass with at least one dimension in nanometer scale in the three-dimensional space scale. Its grain size is about 1-250 nanometers. A notable feature of this mat...
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...
Advantages and Disadvantages of Aspherical Lenses
The surface radian of aspherical lens is different from that of ordinary spherical lens. In order to pursue the thinness of the lens, it needs to change the surface of the lens. Aspheric lens should b...
How to Design and Manufacture Aspherical Lens?
Aspheric fabrication is different from traditional spherical fabrication. In traditional spherical manufacturing, the surface is defined by a single radius of curvature. Curvature can be ground and po...
The Use and Storage of Doublet Lens
Doublet lenses are consumable. Aging begins immediately after opening the seal. During the long-term use, the surface of the doublet lens will continue to increase defects and stains. These defects or...
What is a Bandpass Optical Filter?
In a certain band, there is only a small band with high transmittance in the middle and a high reflectivity cut-off band on both sides of the band. This kind of optical filter is collectively called b...
5 Ways to Use Fisheye Camera Lenses
With fisheye camera lenses, it is very easy to take creative photos. Fisheye camera lenses are usually not very expensive and can shoot very wide scenes. It is important to understand the fisheye lens...
The Functions of a Fisheye Camera Lens
1. Introduction to fisheye camera lensFisheye lens is an extreme wide-angle lens, and "fisheye camera lens" is its common name. In order to maximize the photographic angle of view, the front...
What Is a Beam Expander?
1. Brief introduction of beam expanderA light or laser beam expander is a scientific instrument that can expand the input beam of parallel light or laser into a larger output beam. In terms of usage, ...
Lens Assembly and Assembly Methods
1. Introduction of lens assemblyWith the development of imaging technology and the widespread use of electronic products with camera functions, optical lens assemblies are widely used in various field...
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Application prospect of nanocrystalline materials
Nanocrystalline material is a crystal glass with at least one dimension in nanometer scale in the three-dimensional space scale. Its grain size is about 1-250 nanometers. A notable feature of this mat...
The Design and Use of Optical Lenses in Physical Optics Engineering
Any optical lens, whether new or old, we can use the term lens description to distinguish between the number of the lens, the types of glass, mirror surface radius, the thickness of the lens, the di...
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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