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Keyword "Optical filters"
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 Offer to Sell Photographic Filters Offer to Sell Photographic Filters

For the special effect of photographs shooting, our factory manufacture various optical filters for  photographers. With more than twenty years experience of camera filters production, we not only offer you quality optical filters items with competitive price, but with wide range of selection as UV, PL, CPL, Color, Diffusion, Soft focus effect, Star, Close-up, Multi-vision, ND2, ND4, ND8, Infrared 720 to 950, FL-W, etc. Guaranteed quality. OEM or ODM order is welcome. Details please contact us at c7823h@gmail.com.

 

[Related Categories: Camera, Photo & Accessories ]
[Related Keywords: Photographic Filters, Camera Filters, Optical filters, Optical Effect Filters ]
 Offer to Sell Dichroic Color Corrected Filters Offer to Sell Dichroic Color Corrected Filters

We supply heat process tempered or untemper glass covers & various dichroic coated glass optical filters for lighting, color corrected filters for surgical illumination, optical filters for 
industrial lighting or for your unique project purposes. Additionally, we produce color temperature filters, hot mirrors, IR, UV block or wavelength bypass filters, functional optical filters, etc.. OEM / ODM products are available. Details please contact us at c7823h@gmail.com.

[Related Categories: Lighting Accessories ]
[Related Keywords: Color corrected filters, Dichroic Coated Color Filters, Color Temperature Filters, UV Filters, IR Filters, Optical filters ]
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 NIR Acrylic Filters NIR Acrylic Filters

 

Acrylics made of PMMA, is a good material to be produced into optical filters, because of its good surface quality and high transmission in the spectrum of NIR light. Compared to glass filter, acrylics is much lighter, just a half weight as glass. And it is easier to be tooled into any shapes with much lower cost. NIR dark color acrylic filters absorb most visible light but only transmit NIR light after 720nm, so it is more and more commonly used for cost-effective systems, such as IR TV remote controller, video surveillance cameras, laser bar code scanner and other different NIR imaging optical systems. However, compared to glass filters, acrylics, as a kind of plastic, the surface quality will be easier to be scratched, so it is usually used inside the system to protection.

 

 

Specifications:

Transmission:

 
T>86% @ 780-1100nm, T=50% @ 720nm
Reflection:
Tave<=1% @ 400-700nm
Size:
Customized, any size and shapes
Thickness:
2~3mm
Surface quality:
80/50~60/40
Clear aperture:
Full clear or with protective bevel
Substrate:
Dark color Acrylics

 

● Acrylics, a kind of plastic made of PMMA
● Light weight, high NIR light transmission and deep visible light blocked
● commonly used inside the optical equipment to protect the surface.
 
 
[Related Categories: Optical Instrument & Parts ]
[Related Keywords: Optical filters, NIR Acrylic Filters ]
 Golden Yellow Color UV blocking Glass-UV Filters Golden Yellow Color UV blocking Glass-UV Filters

 

Yellow UV Glass, is a golden color glass absorbing the UV light, but transmit the visible and NIR light. As no coatings on the glass, it is with a higher scratch resistance and much easier for cleaning. So it is commonly used as a protective glass in front of NIR imaging systems.
 
Specifications:

Transmission:
T>85% @ 400-1100nm, T=50% @ 390nm
Reflection:
Tave<=1% at UV blocking range
Size:
customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness:
2~3mm
Surface quality:
60/40~20/40
Clear aperture:
Full clear or with protective bevel

● Yellow color or said more like golden, color glass, absorbing the UV light while transmit visible and NIR light.
● Thickness at least 2mm to ensure the deep blocked rate
[Related Categories: Optical Instrument & Parts ]
[Related Keywords: Optical filters, Yellow UV Glass ]
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 380nm UV Longpass Filter 380nm UV Longpass Filter

 

UV Longpass filter, a type of transparent filter with UV blocked coatings on the substrate, completely to block the UV light but transmit the Visible light and NIR light. By blocking the UV light, the image forming on the sensor can reach a more true color quality, because UV light usually bring a little blue color to the image. Also, UV filter, because of it is a transparent colorless glass, it is usually used for a covering or protective glass. If AR coatings added on the filter, a little purple color when look at it in an angle.
 
Specifications:

Transmission:
T>85% @ 500-1100nm
Reflection:
Rave>99.8% @ 200-380nm
Size:
customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness:
0.3~3mm
Surface quality:
60/40~20/40
Clear aperture:
>90%, or full surface coatings
Substrate:
vary customized, such as B270, BK7, crystal, float or sodalime glass etc.

● High blocked rate in UV spectrum, VIS AR coatings available to reach T>98% @ 400-700nm
● Transparent filter, can be bonded with other filters for vary application.
● Customized or standard size of metal ring could be offered for the filter mounted
 
[Related Categories: Optical Instrument & Parts ]
[Related Keywords: Optical filters, UV Longpass Filter ]
 490+660nm Double Bandpass Filter 490+660nm Double Bandpass Filter

 

Double Bandpass filters are designed with 2 area transmission, while all other spectrums blocked or reflected. Usually, one area is of visible light and the other NIR light. Different areas could be designed for vary equipments or applications, such as 620+890nm, 630+890nm and 650+940nm type.
Specifications:

Centre Wavelength(CWL):
490nm and 660nm, TOL +/-3nm
FWHM(50% point):
490+/-30nm, 660+/-20nm
Transmission:
T>86% at CWL=490nm and 660nm
Size:
customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness:
0.3~3mm
Surface quality:
60/40~20/40
Clear aperture:
Substrate:
vary customized, such as B270, BK7, sodalime glass etc.

● High transmission at the CWL, from 80% ~ 95% according to the bandwidth.
● High blocked rate at OD4
● Precise point of the CWL
● Singlet substrate with coatings
[Related Categories: Optical Instrument & Parts ]
[Related Keywords: Optical filters, full surface coatings, Double Bandpass Filter ]
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 940nm Day Night Filter 940nm Day Night Filter

 

40nm Day Night Filter is a common filter used for day night imaging systems, usually for CCD sensor, which is sensitive for a wide spectrum for image forming. This filters allow the full visible light transmit in the daytime to form a color image, and transmit the 940nm NIR light at night while 940nm LED light source power on, to form a black and white image. As this filter block most of NIR light except the 940+/-20nm or +/-30nm range, the color image in the daytime can be clearer. Compared to 850nm day night filter, 940nm day night filter can be much helpful to reduce the red light transmission.
 
Application: day night surveillance camera, biomedical identification, video door phone, video roll machine, digital telescope optical systems etc.
 
Specifications:

Centre Wavelength(CWL):
940nm, and visible light range
FWHM(50% point):
940+/-20nm or +/-30nm
Transmission:
Tmin>85% at CWL=940nm, and 400-680nm.
Size:
customized, from 2x2mm to Dia. 110mm, +/-0.1mm
Thickness:
0.3~3mm
Surface quality:
60/40~20/40
Clear aperture:
>90%, or full surface coatings
Substrate:
vary customized, such as B270, BK7, crystal or sodalime glass etc.

● One filter for day and night surveillance by blocking most UV light and NIR light.
● FWHM at the centre 940nm can be chosen, such as +/-15nm, +/-20nm or +/-30nm.
[Related Categories: Optical Instrument & Parts ]
[Related Keywords: Optical filters, Day Night Filters ]
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