Colored optical filter

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High Precision Colored Glass Filters Colored glass filters are optical components that control incident wavelength by distributing an optical absorbing substance in glass. Product Origin:China Shipping Port:Fuzhou China Lead Time:4 working weeks Payment:T/T Payment, Western Union UNI Optics’s colour glass filters are manufactured by injecting coloured dye into a glass substrate. 1、How do optical filters work? Optical filters are passive devices that allow the transmission of a specific wavelength or set of wavelengths of light. Absorptive filters have a coating of different organic and inorganic materials that absorb certain wavelengths of light, thus allowing the desired wavelengths to pass through. 2、What is the central wavelength of a red filter? Recall that the visible wavelength ranges are: 430 to 490 nm = blue; 490 to 530 nm = green; 530 to 580 nm = yellow; 580 to 630 nm = orange and 630 to 700 nm = red. Common specification Material: color glass Bevel:<0.25mm X 45° Coating: Optional (Uncoated, AR Coating, etc.)