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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

1. Colorless optical glass: It has special requirements for optical constants, and has high transmittance in the visible light region, without selective absorption and coloring.

Glass has been used in modern times and has always been a product with a large market demand. By using specific processing techniques, we can

What do we mean by a spherical lens? 1、 Basic concepts Definition: A mirror whose reflective surface is a part of a spherical surface is

In optical devices, a piece of glass or other transparent material that is cut at precise angles and planes and can be used to analyze