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To analyze which factors are related to the resolution of optical instruments, it is necessary to start with how optical instruments are imaged. The simple

A prism is mainly a transparent object surrounded by two intersecting but not parallel planes, used to divide or disperse light beams; A prism cannot

There may be many people who do not know much about the optical industry who should be curious about the difference between narrowband filters and

Many SLR cameras only draw side views of a pentaprism in their optical path diagrams, which is slightly misleading, leading everyone to believe that there

A beam expander is a lens assembly that can change the diameter and divergence angle of a laser beam. The laser beam emitted from the

In the optical path system of a laser marking machine, there are important optical devices such as field mirrors, beam expanders, and galvanometers. What is

Protective lenses are very important precision components in the optical path system of laser cutting machines, and their cleanliness has a significant impact on the

Focusing mirror is one of the accessories for optical fiber laser engraving machines, cutting machines, marking machines, welding machines, and other laser equipment. The function

Color filters are also known as “filters.”. An optical glass device that selectively absorbs (or passes through) light according to different wavelengths. An optical color

When wearing glasses, we often need to combine various factors to choose glasses. Spherical and aspherical surfaces are one of the parameters. So what’s the