Optical Filter

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Optical Filter
Posting date : Nov 19, 2007
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70-
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Detailed Description
We can manufacture various optical filters, such as Color Separation Filters, Neutral Density Filters, Short/long wave Pass Filters, Bandpass Filters, etc. Color Separation Filters Color separation filters, are used in optical systems where the incident light needs to be split into two or more wavelength regions or 'colors' with a high degree of efficiency. Custom products Our ability can be up to: Material: Optical crown glass(BK7A) or other materials Diameter: 2-300mm Diameter Tolerance: -0.10mm Minimal Thickness:0.5mm Parallelism: 1 arc minutes Flatness: λ/10@632.8nm Surface Quality:20-10 scratch dig Clear Aperture: 90% of Diameter Operating Temperature:Up to 200°C eutral Density Filters (i)Neutral Density Filters - Absorptive (ii)Neutral Density Filters - Reflective The main purpose of using neutral density filters is to reduce the amount of light that can pass through the lens. As a result, if a shutter speed is kept the same, after adding a neutral density filter, a larger aperture must be used to obtain the same exposure. Similarly, if an aperture is kept the same, after adding a neutral density filter, a slower shutter speed must be used to obtain the same exposure. Custom products Our ability can be up to: Material: Specified by customers Diameter: 2-300mm Diameter Tolerance: -0.10mm Minimal Thickness:0.5mm Parallelism: 1-3 arc minutes Flatness: λ/10@632.8nm Surface Quality:20-10 scratch dig Optical Density:Specified by customers Clear Aperture: 90% of Diameter Coating: specified by customers For more information about our company and our products, pls kindly visit our website: www.dhoptics.com

ECROBOT CO., Ltd, Business Registration Number : 220-88-71747, CEO J.W.Park, TEL : +82-2-552-7676, E-mail : E-mail : Contact us
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