Optical Filters and Components
Optical filters are used in a multitude of applications where it is necessary to select certain wavelengths of light whilst rejecting others. Envin Scientific has many years of experience in designing, manufacturing and supplying filters utilising many different technologies and techniques. Filters are available for use in the Ultraviolet, Visible & Infrared regions from 175nm to 25 microns. Measurement of the optical characteristics of these filters is supported by high performance Perkin Elmer Spectrophotometers.
Optical Interference Filters
- Bandpass Filters
- Infrared filters
- Dual and triple wavelength Bandpass filters
- High Transmission Bandpass filters
- Multi-photon filters
- Fluorescence excitation & emission filters
- LED blocking filters
- LED band limiting filters
- Broadband Dielectric Mirrors
- Dichroic Edge Filters: Longpass & Shortpass
- Heat management filters: Hot & Cold Mirrors
- Infrared Cut Filters
- Notch Filters
- Beamsplitters
- Neutral Density filters
- u.v. cut filters
- Rugate filters
- Mirrors (Metallic and Dielectric)
Unique high transmission u.v. filters
Image Enhancement filters
Dichroic colour Filters
Colour glass filters - many unique to Envin
- Neutral Density filters
- Edge Filters: Longpass & Shortpass
- Heat management filters
- Colour correction filters
- Infrared pass/Infrared cut filters
- u.v. cut filters
Optical resin filters
- Neutral Density filters
- Colour correction filters
Optical components are used to transmit or reflect light in a designed manner for use in the Ultraviolet , Visible & Infrared regions from 175nm to 25 microns.
Complimentary components for the above filters are available in a wide range of optical materials including BK7, Quartz, Sapphire, Borosilicate, Germanium, Silicon and Zinc Selenide.
Lenses (spherical, asherical, achromatic, ball), Windows, prisms, mirrors, lens assemblies.
Typical applications:
Chemical analysis- Biochemical analysis
- Gas analysis
- Colour measurement
- Spectroscopy
- Moisture analysis
- Flame detection
- Dental curing
- Thermal control
- u.v. control
- CCTV enhancement
- Image Enhancement for CCD cameras
- Infrared Security Lighting Filters
- Fluorescence imaging
- Biomedical Technology
- Laser processing
- Colour separation
- Chemiluminescence
- Flow Cytometry
ANPR systems- LED Band limiting
- Laser blocking
- LED blocking
- Multiphoton techniques
- Infrared Signature Identification
- Quantum dots
- Industrial laser protection
- Output couplers for NIR lasers
- Multi-spectral Analysis
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