Longpass filters are ideal for a variety of applications, such as gas monitoring, temperature, sensing, thermal imaging and motion sensing, etc. Longpass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in the pass band can be enhanced with an antireflection coating on the second surface.
product origin:
Chinashipping port:
Fuzhou Chinalead time:
4 working weekspayment:
T/T Payment, Western Union1、What is the longpass filter?
UNI Optics’s longpass (LP) Filter is an optical interference or coloured glass filter that attenuates shorter wavelengths and transmits (passes) longer wavelengths over the active range of the target spectrum (ultraviolet, visible, or infrared).
Longpass filters are ideal for a variety of applications, such as gas monitoring, temperature, sensing, thermal imaging and motion sensing, etc. Longpass filters block shorter wavelengths and transmit longer wavelengths. Blocking can be from reflectance, absorption or a combination. Transmission in the pass band can be enhanced with an antireflection coating on the second surface.
3、Can you provide samples?
Yes, 1-2pcs for testing. Please inform us of your detailed requirements, like Cut-On wavelength, transmission range, etc.
4、Can you offer coating curve?
Yes. Our optical engineers can design it and send it to you for checking.
5、Do you have standard LP filters?
Yes. We have LP470, LP500, LP515, LP530, LP550, LP580, LP590, LP610, LP630, LP695, LP715, LP780, LP830, LP850, LP910, LP920, LP950, LP1000 etc.
Common Transmittance Curve
Fused Silica IPL Filter for Hair Removal
Machine Vision Bandpass Filters
A band pass filter is a device that passes frequencies within a certain range and rejects (attenuates) frequencies outside that range, and it’s used to selectively transmit a portion of the spectrum while rejecting all other wavelengths.
Optical glass neutral density filters
A Neutral Density filter allows a photographer to control the exposure in an image very easily. The filter stops light reaching the camera sensor, therefore allowing us to leave the camera with a higher aperture for a longer amount of time.
High Precision Colored Glass Filters
UN-ALS50J01
Product Features:
1. Compatible for 30mm Large Format Sensor
2. Large Aperture with F2.4
3.High Relative Illumination
4. Compatible for 2K-4K line scan camera
5. Ultra-low Distortion, low vertical axis chromatic aberration
6. Vibration-resistant and high stability.
Product information:Custom designs are available upon request.
Download the Datasheet of UN-ALS50J01
Colored Glass(Cut-off, Absorption,-selective, Neutral color glass)
UNI Optics supply material include neutral density, short pass, long pass, band pass, ultraviolet, infrared,heat absorbing, and color temperature conversion filters. Just point and click on the name above to view information on that manufacturers filters.
UN-TFA2518L-10MP
Laser Grade Prisms
UN-TFA3520X-12MP
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Taurus Series 4/3″ Format FA Lens(12MP) |
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Model |
UN-TFA3520X-12MP |
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Focal length |
35mm |
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Aperture |
F2.0-F22 |
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Image Format |
4/3″(23mm) |
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Mount |
C |
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Field Angle D x H x V (°) |
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4/3″ |
1″ |
1/2" |
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D |
36.8° |
26.0° |
13.2° |
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H |
29.7° |
20.8° |
10.6° |
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V |
22.5° |
15.8° |
7.9° |
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Optical Distortion |
-0.52%@ y=11.5mm |
-0.42%@ y=8.0mm |
-0.12%@ y=4.0mm |
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M. O. D. |
0.2m |
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Dimension |
Φ48.5*64.3mm |
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Back Focal Length |
18mm |
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Design Wavelength |
420~1000nm |
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Operation |
Manual Iris |
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Manual Focus |
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Filter Thread |
M46×P0.75 |
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Weight |
207g |
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Work Temperature |
-20℃～+60℃ |
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Fused Silica Ball and Half-Ball Lenses
UN-TFA5020L-10MP
UN-GSWIR2514C
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Gemini Series SWIR Lens |
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Model |
UN-GSWIR2514C |
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Focal length |
25mm |
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Aperture |
F1.4 |
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Image Format |
1″ |
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Mount |
C |
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Field Angle |
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1″ |
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D |
61.93° |
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H |
52.21° |
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V |
40.1° |
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Optical Distortion |
<-0.96% |
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M. O. D. |
0.3m |
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Dimension |
Φ36.5*54.91mm |
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Flange BFL |
17.526mm |
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Back Focal Length |
11.51mm |
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Resolution |
80lp/mm |
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Operation |
Manual Iris |
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Manual Focus |
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Design Wavelength |
900-1700nm |
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Filter Thread |
M34*0.5 |
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Tel : +86-591-86395085
Email : sales@uni-optics.com
