Longpass Coloured Glass Filter
Coloured glass filters absorb and transmit different spectral bands. Unlike dielectric filters, the center wavelength does not change when the AOI of the beam changes. Grand Unified Optics provides all kinds of optical coloured glass filters to suit your application.
- Material Coloured glass
- Surface Accuracy λ/ 2 @ 633 nm (25mm Area)
- Parallelism ＜1 arcmin
- Surface Quality 40-20
- Dimension Tolerance ＋0.0/-0.2mm
- Thickness 2mm ±0.2mm
- *Central Wavelength Tolerance ±10nm
- Transmission Tavg＞85%
- * Central Wavelength Location of wavelength point with 50% of peak transmittance
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We offer two catalogs to you: product catalog and Imaging optics catalog.
Product catalog:
This catalog include optical components, laser components, opto-mechanics, lenses and light sources, measuring instruments, and optical materials. In additional, we also provide large-size ultra-precision planar optical, spherical optical, aspheric optical, imaging lens, and precision angle component customized design and processing.
Imaging optics catalog:
This catalog include fixed focal lens, telecentric lens, zoom lens, line scan lens, short wave near infrared lens (SWIR), 360°outer surround view lens, VIS-NIR lens, relay lens , teleconverter, etc. In additional, we also provide lens design and development service.
