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-ALS502K01
Product Features:
· Developed for 32mm big frame sensor
· Large Aperture, upto F2.4
UN-TFA1628L-20MP
· High relative illumination and high contrast
· Low distortion and excellent corner brightness
· High resolution
· Compatible with 1'' and 1.1'' 20MP camera
C-Lens
High Power Laser Line Windows
1、What are laser windows?
Laser Protect Windows(Laser protective glass, protective filters or welding protective windows) are used to save for the high cost of laser optics.
2、What are laser windows used for?
These windows are normally used in applications like laser cutting, laser welding machine, they are used for avoiding the high-precision laser optics damage by material splashes.
3、The key features of UNI Optics' Laser Windows
High Transmission
High Damage Threshold
Low Scatter
Low Absorption
Excellent Film Density
Excellent Environmental Stability
Typical Specifications:
Dimension: 4mm-80mm, round or square
Material: BK7, Fused Silica, ZnSe...etc
Surface quality: 10/5
Surface flatness: Lambda/10@632.8nm
Parallelism: 30’’
Roughness: 3A
Optical glass Plano Convex Circular Cylindrical Lenses
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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UN-TFA1218C
Product Features:
1. Compatible for 2/3'' Format Sensor
2. Ultra-compact Design
3. Ultra Low Distortion
4. High Relative Illumination
5. High Cost Performance
6. Supply with Focus and Iris locking screws.
Product information: Custom designs are available upon request.
Download the datasheet of UN-TFA1218C
UN-TFA0614C
Product Features:
1. Compatible for 2/3'' Format Sensor
2. Ultra-compact Design
3. Ultra Low Distortion
4. High Relative Illumination
5. High Cost Performance
6. Supply with Focus and Iris locking screws.
Product information: Custom designs are available upon request.
Download the datasheet of UN-TFA0614C
Tel : +86-591-86395085
Email : sales@uni-optics.com
