Metallic optical reflectors achieve reflection by surface coating. Generally, plane mirrors are divided into metal film mirrors and dielectric film mirrors. Both of these are coated on the surface of the substrate, and the film layer will have factors such as absorption and dispersion.

Metallic optical reflectors are commonly used in scientific research experiments, national defense applications, daily life and other applications.

We can use magnetron sputtering equipment to deposit metal on the surface of the substrate. We can deposit gold, silver, copper and aluminum materials. In addition, in order to protect the surface of the metal film layer, we can also deposit Sio2 as a protective layer on the surface of the metal film layer. At the same time, because the equipment we use is magnetron sputtering coating equipment, the thickness of the film layer is very precise and the density of the film layer is also very excellent. 

Depostion Way:Magnetron Sputtering 

Metal Layer: Au Ag Cu Al 

Protection Layer:Sio2

Substrate: Glass/Crystal/Titanium alloy/Ceramic/Silicon Wafer/SIC

Substrate SIZE:500mm Diameter At MOST

Below we introduce several categories of commonly used metal reflectors:

Aluminized reflector:

Compared with other metal materials, the optical film of this type of reflector is relatively stable. Since the surface layer of the aluminum-coated film is aluminized, an aluminum oxide film can be generated in the atmosphere. The aluminum-coated reflector uses a vacuum coating method. A total reflection mirror coated with an aluminum film on the surface of a flat substrate can achieve a reflectivity of more than 90% in the visible light region.

Silver-plated reflector:

The silver-coated mirror has a relatively high reflectivity of greater than 95% in the visible and infrared bands. When the mirror is tilted, the polarization effect of the mirror is very small. The adhesion between the silver-coated mirror film layer and the optical glass substrate is poor, and it is easily affected by sulfides and has a short service life.

Gold plated reflector:

The reflectivity of gold-plated mirrors in the infrared band is as high as over 98%. The gold-plated film has poor adhesion. The chromium film is used as the base to improve the adhesion of the film. The strength and stability of gold-plated mirrors are better than silver-plated mirrors, but Gilded mirrors cannot be scrubbed when stains are present.

Not only Advanced Fabrication Machine But Also Advanced Test Instrument

We have advanced  coating machine and testing equipment all over the world.We regard optical coating  ”advanced science“，and we know how to fabricate and test to meet client's demands.

If you want to know more about our hardware about production and testing, please click this link:

Coating Machine and Testing Instruments for Optical filter 

Optical Products Inventory List

Omeda have rich experience in biomedical products,we do many projects with our clients and accumulated a lot of stock filter, the stock filters list can help you save a lot of money on sample cost.

Biomedical Filter Inventory.xlsx

Remark：In addition to common wavelengths, we warmly welcome you to customize specified wavelength, half-width, transmittance, and cut-off depth filter ; we are especially good at dual-wavelength and multi-wavelength bandpass filter .

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About Hennan Auxcelar Technologies Co.,Ltd

Auxcelar is a company that focuses on the production of advanced optical and semiconductor components. Our team consists of several PhDs who study optical components and semiconductor component processing. We have extensive experience in glass molding technology,glass polishing technology, through-silicon via and through-glass via technology, optical coating technology, optical fiber device technology, lithography technology,Nanoimprint technology, free-form surface, metasurface and diffractive optical design.

Our business involved in Lidar,consumer electronics,Biomedical,3D Sensing, AR,VR,fiber communication,Laser Projection and Display,high power laser and so on. We provide advanced optical and semicondutor components for clients to make their design become real products.

Email:omedaoptics@gmail.com

Tel/Whatsapp:+86 151 1838 3837