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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615nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 615nm …
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630/10nm Narrow Bandpass Filter
Filter Type : Narrow Bandpass Filter
CWL: 630nm
FWHM: 10nm …
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635/60nm Bandpass Filter
Filter Type : Visible Bandpass Filter CWL: 635nm FWHM: 60nm Filter Type Visible Bandpass Filter Coating Type Hard Coating Center Wavelength 635nm FWHM Bandwidth 60nm Transmission Tpeak>85% Blocking OD>2 Blocking Band 400-1100nm (Out of passband) AOI 0 ±5 degrees Scratch-Dig 60/40, 80/50 Substrate Fused Silica , B270 , Float Glass, Absorptive Glass Size Customize sizes …
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650/60nm Bandpass Filter
Filter Type : Visible Bandpass Filter CWL: 650nm FWHM: 60nm Filter Type Visible Bandpass Filter Coating Type Hard Coating Center Wavelength 650nm FWHM Bandwidth 60nm Transmission Tpeak>85% Blocking OD>2 Blocking Band 400-1100nm (Out of passband) AOI 0 ±5 degrees Scratch-Dig 60/40,80/50 Substrate Fused Silica , B270 , Float Glass, Absorptive Glass Size Customize sizes as …
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660nm Dichroic Beamsplitters
Filter Type : Dichroic Mirror
Edge Wavelength: 660nm …
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675/10nm Narrow Bandpass Filter
Filter Type : Narrow Bandpass Filter
CWL: 675nm
FWHM: 10nm …
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700/10nm Narrow Bandpass Filter
Filter Type : Narrow Bandpass Filter
CWL: 700nm
FWHM: 10nm …
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715/10nm Narrow Bandpass Filter
Filter Type : Narrow Bandpass Filter
CWL: 715nm
FWHM: 10nm …
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780/40nm Bandpass Filter
Filter Type : IR Bandpass Filter CWL: 780nm FWHM: 40nm Filter Type IR Bandpass Filter Coating Type Hard Coating Center Wavelength 780nm FWHM Bandwidth 40nm Transmission Tpeak>85% Blocking OD>3 Blocking Band 300-1100nm (Out of passband) AOI 0 ±5 degrees Scratch-Dig 60/40, 80/50 Substrate Fused Silica , B270 , Float Glass, Absorptive Glass Size Customize sizes …
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785/20nm Bandpass Filter
Filter Type : IR Bandpass Filter CWL: 785nm FWHM: 20nm Filter Type IR Bandpass Filter Coating Type Hard Coating Center Wavelength 785nm FWHM Bandwidth 20nm Transmission Tpeak>70% Blocking OD>2 Blocking Band 200-1100nm (Out of passband) AOI 0 ±5 degrees Scratch-Dig 60/40, 80/50 Substrate Fused Silica , B270 , Float Glass, Absorptive Glass Size Customize sizes …
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