Longpass filters
Description
Optical Filters are always used to selectively transmit or reject a wavelength or range of wavelengths. Optical Filters are ideal for life science, imaging, industrial, or defense industries.
Color Glass Filters are available in longpass, bandpass, and neutral density options. These filters utilize the material’s inherent absorption or transmission properties, rather than interference effects from thin film coatings. They are ideal for use as environmental displays or for other machine vision or industrial applications.
Glass manufacturers using varieties of colorants with different concentrations and many types of base glasses have been developed to facilitate the development of an assortment of filters, some with extreme filter properties, in the largest possible spectral region.
Our Color Glass Filters serve as broadband, bandpass, or long- pass filters. Sherlan Optics offer a variety of Schott, Hoya or Chinese equivalent Color Glass Filter covering from UV, visible to IR spectrum.
These filters are precision polished for demanding research or OEM applications.
Longpass filters
Specifications |
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|---|---|
| Shape: | Square |
| Size: | 12.5 mm |
| Thickness: | 2 mm |
| Color Series: | Red & Black, IR Transmitting |
Features
Red color filter
Longpass filter
For pricing, technical or any other questions please contact the supplier
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How to order?
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Ships from:
China
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Sold by:
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On FindLight:
since 2019
Frequently Asked Questions
Longpass filters are used to selectively transmit or reject a wavelength or range of wavelengths in various industries such as life science, imaging, industrial, or defense industries.
The Longpass filter HB670 has a thickness of 2mm, chemical stability, and a temperature coefficient of expansion (α) of 5.2×10-7 (℃). It also has a glass transition temperature (Tg) of 1035℃ and a strain point (Ts) of 760℃.
The technical index of the Longpass filter HB670 is that it has a transmission wavelength (λtj) of 670±10nm, a cutoff wavelength (λ0) of 750nm, a transmittance at λ0 of ≥87.5%, and a refractive index (K) of ≥1.0.
The transmittance of the Longpass filter HB670 is not provided in the product description.
Color Glass Filters are available in longpass, bandpass, and neutral density options.