Nowadays, people are very familiar with DSLR cameras, which are single-lens reflex digital cameras. The principle of DSLR cameras is to use a single lens for framing and the light is projected onto a ...
In fact, many optical systems image objects in space on an image plane, called the space image on the plane, such as telescopic objective lens, photographic objective lens, etc., belong to this catego...
Optical prism is a special lens with unique optical properties, which produces certain optical effects and directional characteristics through its structural features, and is worthy of research and ap...
The so-called narrow band optical filter is subdivided from the bandpass filter, and its definition is the same as that of the bandpass filter. It allows light signals to pass through a specific wavel...
The so-called linear variable filter is "linear" because its spectral characteristics are different at different positions and change linearly with the change of spatial position. Linear var...
Cylinder lens is non-spherical lens that can effectively reduce spherical aberration and chromatic aberration when usedIn fact, they have a significant impact. Generally, there are different types, su...
Prisms are usually cut and ground from a solid piece of glass, and then coated with reflective materials on all surfaces except for the two that connect to the focusing screen and viewfinder. This cre...
As is known to all, optical filter films can adjust the molecular structure by different colors, so as to change the refractive index of the material and adjust the light transmission rate. The absorp...
Optical windows are flat plates made of optically transparent material, designed to allow light into an optical instrument. They can also be used to protect a light source from an outside environment....
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