Products
Thin Film Coating
Reflecting Mirrors
: Reflection Mirror
Reflecting Mirrors are coated with a metallic film made from materials such as aluminum, silver, and dielectric films. They are used in various optical systems. In total reflection mirrors, R (reflection rate) = 99.99% has been achieved by our coating technology. |
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Multi-layer Reflection Mirror
NITTO OPTICAL manufactures Multi-layer Reflection Mirror for EUV lithography. |
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Total Reflection Mirror
Total reflection mirror is optical element reflecting all beams. For Blu-ray Discs and HD DVD application, Nitto Optical has developed mirrors that reflect not only DVD, CD wavelength but also Blue Laser wavelength.
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Wide Band Reflection Mirror
Wide Band Reflection Mirrors reflect a specific wavelength. These are used for laser resonators such as tunable lasers.
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Ultra Huge Reflection Mirror
High precision Ultra Large Reflection Mirror of sizes up to φ2,800mm has been developed.
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Enhanced Reflection Mirror
By coating the aluminum with a multi-layer dielectric film, reflectance is increased over a wide range of wavelengths. The durable enhancing multi-layer produces over 92% reflection ratio. This coating is well suited for applications requiring the durability and reliability. |
Laser Mirrors
Laser mirrors are designed for high reflectance and durability at individual laser wavelength ranges. Reflectance can be easily controlled. |
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3 Wave Non-phase Retardation Laser Mirror for Blu-ray Disc (HD DVD)/DVD/CD
This mirror reflects dual wavelengths among Blue (Blu-ray and HD DVD), DVD or CD wavelengths with no phase shifts.
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AR Coatings
: Anti-Reflection Coating
As light passes through an uncoated glass substrate, approximately 4% will be reflected at each surface. This results in a total transmission of only 92% of the incident beam. Applying an AR coating on each surface will increase the throughput of the system and reduce hazards caused by reflections traveling backwards through the system (ghost images). Anti-reflection coatings are especially important if the system contains many transmitting optical elements. |
AR Coating for Excimer Lasers
: Anti-Reflection Coating for KrF/ArF Excimer Laser
NITTO OPTICAL provides Anti-reflection coatings for excimer laser optical systems, with high laser power thresholds and great durability
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Cold Mirrors/Filters
The multi-layer dielectric coating on these glass mirrors reflects 90% of visible light while allowing better than 80% transmission of IR range. Cold mirrors are ideal for illumination systems where high temperature lighting is not desired. |
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Half Mirrors
: :Semi-transparent Mirror
Half mirrors can split incident beam into transmission and reflection beams. The ratio of transmission and reflection can be changed upon request.
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Dichroic Mirrors
Dichroic Mirrors reflect specific wavelengths while allowing other wavelengths to transmit |
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Dichroic Filters
Dichroic Filters transmit only specific wavelengths while reflecting other wavelengths. |
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Band Pass Filters
:BPF(50G/Hz,100G/Hz,200G/Hz)
Band Pass Filters selectively remove specific wavelengths. They are compatible with various lasers and preserve a maximum transmission rate. |
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Narrow Band Pass Filters
Narrow Band Pass Filter selectively removes specific wavelengths for DWDM/CWDM applications, etc.
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CWDM Band Pass Filter
This Band Pass Filter is used for CWDM (Coarse Wavelength Division Multiplexing) Fiber Optic devices. When the Band Pass Filters has 20nm wavelength interval, transmission band can be 14nm or wider and also ripples can be controlled. We can supply this filter in various substrate types, such as glass, polyimide, and substrate free.
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Wide Band Pass Filter
Wide Band Pass Filter selectively removes specific color wavelengths for ADM (Add Drop Multiplexer) applications, etc.
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251nm Band Pass Filter
Band Pass Filters can be manufactured with the center wavelength of 251nm. These filters have an excellent temperature stability and achieve extremely high transmission.
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Optics for sterilizationNew
We can design and manufacture coating that transmit wavelengths in the vicinity of 220-250 nm, which are effective in sterilizing coronaviruses and control wavelengths that are harmful to the human body.
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Edge Filters
Edge Filters separate or combine C band/L band for fiber optic communications and are used also for excitation light and signal light in optical amplifiers (EDFA: Erbium Doped Fiber Amplifier) and in Raman amplifiers. Then the graph shows sharp spectral characteristics.
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Long Wave Pass Filter
: :LWPF
Long Wave Pass Filters (LWPF) transmit long wavelengths and reflect short wavelengths. They have sharp spectral characteristics for specific range of wavelengths.
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Short Wave Pass Filter
: SWPF
Short Wave Pass Filters (SWPF) transmit short wavelengths and reflect long wavelengths. They have sharp spectral characteristics for specific range of wavelengths.
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Attenuators
Optical Attenuators are devices used to reduce the power level of an optical signal, either in free space or in an optical fiber. They are commonly used in fiber optic communications. |
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Anti-reflection Attenuator
: Anti-reflection ND Filter
Anti-reflection Attenuators (ND filter) remove surface reflection by optionally attenuating light intensity (25%, 50%, etc.).
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Interference Filters
Interference Filters are optical filters that deflect one or more spectral bands or lines and transmits others, while maintaining a nearly zero coefficient of absorption for all wavelengths of interest. |
Colored Glass Filters
Color characteristic can be reproduced by deposition. When forming with dielectric coating, an filter with no absorption can be manufactured but the angular dependence is high. |
IR Cut Filter
Together with its substrate or coating itself alone, the coating blocks cirtain part or bloard range of infrared wavelength similar to traditional "cold filter". [Substrates] BG, D263, heat-resisting resin films [Characteristics] Blue Glass:It reproduces the original colors of the scene and gives a solution to the issues such as the depth of field and color formation. This has been employed on the 8.0 Mega pixcel cameras in a smart phone for instance. D263:It is often employed with the front-facing camera due to the relatively cheaper cost to be manufactured. Film:Reflecting the trend in minimizing of the camera module, the demands for coating on thin resin film is increasing. We have a know how to coat on heat durable resin films. |
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Optics for medical instruments and biotech instruments
Optical filters for Laser Raman Spectroscopy or medical and biotech measuring instruments or devices. Fluorescent detection method has been more and more popular among medical and biotech measuring instruments. Controlling the transmission rate at a certain very narrow band with high optical density, it transmits the other wavelength range.
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Gain Flattening Filters
:Gain Flat Filter :GFF
Gain Flattening Filters are special filters used for EDFA (Erbium Doped Fiber Amplifier) in Fiber Optic communications.
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Optics for Infrared range (Anti-Reflection Coating)
Anti-reflection coating for mid to far infrared range. This would be widely used for the IR light applications. |
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Optics for Infrared range (High-Reflection Coating)
High reflection coating for mid to far infrared range. This would be widely used for the IR light applications. |
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Anti-Fingerprinting coating
: Antifouling coating, AF coating
[Substrates] Tempered glasses, Sapphire Glass, Plastic (resin) |
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High Laser Damage Threshold CoatingsNew
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Precision polishing and precisely designed coatings provide high laser damage threshold optical components.
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