Optolong professionally manufacture optical thin film coating filters since 1999
Manufacturing Capabilities
Customize thin film coating
- Design coating: Based on clients’ requirements/applications;
- Processing waveband: Ultraviolet, Visible, Infrared, Near infrared ;
- Processing capability: Vacuum ion assisted coating (IAD), Hard coating;
- Coating types: Bandpass filters, Longpass filters, Shortpass filters, Anti-reflection filters, Beamsplitter, Dichroic mirrors;
- Main optical filters series:Astronomy filters , Fluorescence filters.
Coating technology
- Double-sided polishment substrate, good flatness and parallelism to avoid to halo/ghost image
- E-Beam gun
- Ion assisted coating, firm coating film, no wavelength shift
- Planet wheel coating fixture, wavelength consistency
Dust-free coating workshop & equipment
Optical coating is the key part of finished optical components. There are very strict requirements on environment when coating. Optolong owns class 10000 dust-free workshops. All optical filters are meticulously cleaned, coated and inspected in clean rooms.
- Coating equipment
- OPTORUN OTFC-1300
- Mars I 120
Quality Control
Optolong employs advanced spectrophotometers, measuring spectral range 190-3200nm. We perform spectral measurement of every production lot to ensure filters meet specification requirements.
- Spectrum measurement
- Shimadzu spectrophotometer
- PHOTON RT spectrophotometer
- Laser plane interferometer
- Collimator
- Goniometer
Get in touch
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415nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 415nm …
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470nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 470nm …
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510nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 510nm …
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520nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 520nm …
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570nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 570nm …
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580nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 580nm …
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595nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 595nm …
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615nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 615nm …
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660nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 660nm …
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Blue Dichroic Beamsplitters BDM
Filter Type : Dichroic Mirror Edge Wavelength: 500nm Filter Type Dichroic Mirror Coating Type Hard Coating Edge Wavelength 500nm Transmission Tmin>95% Transmission Band 532±8nm & 650±8nm Reflection Rmin>99% Reflection Band 470±8nm AOI 45 degrees Scratch-Dig 60/40 Substrate Fused Silica , B270 , Float Glass, Absorptive Glass Size Customize sizes as per customers demands