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Introduction to the principle of Zero Phase Reflector
Posted on:
2022-08-05
Zero Phase Reflector It is an optical element that works using the law of reflection. Mirrors can be divided into three types: plane mirrors, spherical mirrors, and aspheric mirrors according to their shapes; In the past, when manufacturing mirrors, silver was often plated on glass. The standard process for its production was: vacuum evaporation of aluminum on a highly polished substrate, and then coating with silicon oxide or magnesium fluoride. In special applications, due to metal Losses can be replaced by multilayer dielectric films. Because the law of reflection has nothing to do with the frequency of light, this component has a wide operating frequency band and can reach the ultraviolet and infrared regions of the visible light spectrum, so its application range is getting wider and wider. On the back of the optical glass, a metal silver (or aluminum) thin film is coated by vacuum coating to reflect the incident light. The use of mirrors with high reflectivity can double the output power of the laser; and it is the perfect reflection surface, the reflected image is not distorted, and there is no ghosting, which is the reflection of the front surface. If an ordinary reflecting mirror is used as the second reflecting surface, not only the reflectivity is low, the wavelength is not selective, but also ghost images are easily generated. With the use of the coated mirror, the obtained image is not only high in brightness, but also accurate without deviation, with clearer image quality and more realistic colors. Front surface mirrors are widely used for optical high-fidelity scanning reflection imaging.
Flat Zero Phase Reflector
A flat mirror is a mirror whose reflective surface is flat, called a flat mirror. The reflective surface can be the front surface or the rear surface. Mirrors used in daily life, the reflective surface is the rear surface, for important technical mirrors, most of the reflective surface is the front surface. In optics, a plane mirror is the only optical element that can form a perfect image. It does not change the concentric nature of the beam. After being reflected by the plane mirror, the diverging concentric beam is still a diverging concentric beam, and a converging concentric beam is still a converging concentric beam.
Spherical Zero Phase Reflector
Spherical mirrors refer to mirrors whose reflective surfaces are spherical, and are divided into two types: concave mirrors and convex mirrors. According to the unevenness of the light-receiving surface, it is divided into two types: concave mirror and convex mirror. The first focus of both coincides with the second focus, and the focus in the concave mirror is real. The focal point in a convex mirror is virtual.
Metal Zero Phase Reflector
Metal mirrors are used to reflect light for a variety of applications including beam shifting, interferometry, imaging or illumination, and more. Reflective coatings include protective aluminum film, enhanced aluminum film, protective silver film, and protective gold film.
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