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A dichroic filter is an optical element with a specialized thin-film structure that selectively reflects or transmits light within a specific wavelength range while absorbing or reflecting other wavelengths.
Payment :
T/T PaymentProduct Origin :
ChinaShipping Port :
Fuzhou, ChinaProduct Overview:
Dichroic filters are based on the principle of thin-film interference. They separate or combine light by wavelength: light at specific wavelengths is reflected, while other wavelengths are transmitted. This gives them high spectral selectivity and stability.
Applications:
Stage lighting: Mixes or separates different colored light sources to create colorful lighting effects.
Projectors: Separates and combines red, green, and blue light for high-quality image projection.
Fluorescence microscopes: Effectively separates excitation light from emitted light to enable clear fluorescence imaging.
Optical communication: Used in wavelength division multiplexing (WDM) systems to combine and separate optical signals at different wavelengths, improving communication capacity and efficiency.
| Specification | |||||
| Materials | Optical glass, UVFS, Si, etc | ||||
| Size | 1-200 mm | ||||
| Surface Flatness | 2λ to λ/10 @632.8 nm | ||||
| Effective clear aperture | 90% | ||||
| Surface quality | 80/50 to 40/20 S/D | ||||
| Optical density | OD1 to OD6 | ||||
| Coating | Upon Request | ||||
Transmission Curve:

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