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Hanzhong Brisun Optics Co., Ltd. Is the high High precision optical element manufacturer provides customized production of Various optical lenses, including spherical lens, cylindrical lens, optical window, mirror, prism, filter, metal base mirror and other high-precision optical elements. The base materials include various optical glass, fused quartz, calcium fluoride (CaF2), zinc selenide (ZnSe), germanium (GE), silicon (SI), sapphire, metal and other materials. And provide antireflective film, high reflection film, spectroscopic film, metal film and other optical coatings.

Mirrors are used for beam turning, interferometry, imaging or illumination. Using polished glass or metal as the substrate, the light beam irradiates the surface to form specular reflection. In order to obtain as much reflected light as possible, a layer of reflective film is often plated on the substrate, including metal film and dielectric film.

The commonly used materials of metal films are aluminum, silver and gold. Aluminum has high reflectivity from ultraviolet region to infrared region. At the same time, a layer of alumina can be formed on the surface of aluminum, so the film is firm and stable. The silver film has high reflectivity in the visible and infrared regions, and the polarization effect is the smallest when the incident angle changes. Gold film has high reflectivity in the infrared region, and its strength and stability are better than silver film, so it is often used for infrared reflection. The metal film is soft and easy to be scratched and damaged, so a protective film is often plated outside the metal film. The metal film mirror is not sensitive to the incident angle, and can meet the geometric reflection conditions. At the same time, it can be used in a relatively wide wavelength range.

Generally speaking, metal film mirrors can meet the needs of optical instruments. If higher reflectivity is required, multilayer dielectric reflective film can be used, which can achieve maximum reflectivity and minimum absorption loss. The incident angle and wavelength will affect the reflection efficiency of the dielectric film. Generally, the incident angle: 0 ° or 45 ° and the specific working wavelength range will be marked.

Technical parameters:
Material: optical glass, H-K9L (N-BK7), fused quartz
Radius of curvature: ± 1mm - ± 50000mm ± 1%
Outer circle: 3mm-500mm ± 0.1mm
Center thickness tolerance: ± 0.05mm (we can process to ± 0.01mm with high precision)
Center deviation: 3′(we can process to 30 ″with high precision)
Surface accuracy: λ/ 8 (high precision, we can process to 1 / 10λ)
Surface quality: 60/40 (we can process to 10-5 with high precision)
Effective caliber: ≥90%
Coating: according to the customer requirements

In addition, we have thousands of kinds of stock, such as quartz plano convex lens, quartz plano concave lens, quartz biconvex lens, quartz biconvex lens, cylindrical lens, prism, filters, windows, beamsplitter and so on. The price is preferential and the quality is excellent, which can meet your demand for a small order.

If you are interested it, welcome to inquiry us or search "Hanzhong Borisun Optics Co.,Ltd "to know about more details.