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The industries closely related to the precision optical device industry are the visual material production industry and the optical instrument industry. Among them, the optical material production ind...

Optical instruments or optical manufacturing cannot bypass the research and discussion of optical lenses, especially the most concerned industrial host machine in the current information age-the litho...

Ⅰ. Introduction of Penta PrismPenta prisms are also known as pentagonal prisms and pentagonal dichroic prisms. Penta prisms are a kind of optical reflective prisms. Penta prisms are optical prisms wi...

Ⅰ. Dichroic filterAlmost the opposite of absorptive filters: They reflect selected wavelengths instead of absorbing them, and then transmit the remaining wavelengths. Both types of optical filters ha...

The so-called narrow-band filter is subdivided from the band-pass filter, and its definition is the same as that of the band-pass filter, that is, this kind of filter allows the optical signal to pass...

Ⅰ. Mold material and processing of optical glass prismThe mold material needs to have the following characteristics.1. The surface is free from defects and can be ground into a smooth optical mirror ...

The optical lens is a transmission device that changes the light beam. By using a refraction process, these optical devices can disperse or focus the light beam. Depending on your application needs, y...

Because the concave lens forms a virtual image for the real object, it is difficult to measure the object distance and image distance of the concave lens directly. We can only use an inverted real ima...