Industry News
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The classification, working principle and function of optical filters
The working principle of the filter: The filter is made of plastic or glass and added with special dyes. The red filter can only let red light pass through, and so on. The refractive index of the glass sheet is originally similar to that of air, and all colored lights can pass through, so it is t...Read more -
Powell prism related knowledge introduction
Powell prism is a kind of optical scribing prism, which allows the laser beam to pass through to optimally scribing into a straight line with uniform optical density, good stability and good linearity. Powell prism scribing is better than the scribing mode of cylindrical lens, which can eliminate...Read more -
Diffractive optical element: principle and development of diffractive optical element
The diffractive optical element is based on the diffraction theory of light waves, using computer-aided design, and through the semiconductor chip manufacturing process, etched on the substrate (or the surface of the traditional optical device) to produce a stepped or continuous relief structure...Read more