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.
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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
Optical glass Plano Convex Circular Cylindrical Lenses
UN-ALS354K
Product Features:
· Developed for 32mm big frame sensor
· Large Aperture, upto F2.4· Excellent optical performance, uniform imaging of center and edge
Product information: Custom designs are available upon request.
UN-TFA0921C
Product Features:
· Developed for 2/3" image format
· Compact and lightweight design
· Low distortion
· High relative illumination
· Focus and iris fixed with screw
Product information: Custom designs are available upon request.
UN-TFA5028S-6MP
Product Features:
· Developed for 1/1.8" image format
· Low distortion
· High relative illumination
· Focus and iris fixed with screw
Product information: Custom designs are available upon request.
UN-TFA2520C
Product Features:
· Developed for 2/3" image format
· Compact and lightweight design
· Low distortion
· High relative illumination
· Focus and iris fixed with screw
Product information: Custom designs are available upon request.
UN-ALS50J01
Product Features:
· Developed for 30mm big frame sensor
· Large Aperture, up to F2.6· Excellent optical performance, uniform imaging of center and edge
Product information: Custom designs are available upon request.
UN-TFA2528C-6MP
Product Features:
· Developed for 2/3" image format
· Low distortion
· High relative illumination
· Focus and iris fixed with screw
Product information: Custom designs are available upon request.
30° - 60° - 90° Littrow Dispersion Prisms
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Email : sales@uni-optics.com
