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
BBAR Coated Hypotenuse Right Angle Prisms
IR Windows Calcium Fluoride CaF2 Windows
Calcium Fluoride windows and lenses for UV and IR spectrum. Custom made CaF2 windows, CaF2 lenses and wedges according to customer's specifications. CaF2 windows up to 220mm diameter; CaF2 wedges, prisms and CaF2 mirrors; Excimer CaF2 optics, Raman grade CaF2 optics and etc.
AR Coated BK7 Windows
N-BK7 and Fused Silica Wedge Prisms
AR Coated Sapphire Windows
Polarizing Beamsplitter Cubes
Visible and NIR Plate Beamsplitters
Plano-concave rectangular Cylindrical Lenses
Plano-concave rectangular cylindrical lenses provide uni- axial negative imaging for anamorphic beam expansion and a wide range of applications.These lenses may also be used as mirror blanks if a concave cylindrical surface mirror is required.
Tel : +86-591-86395085
Email : sales@uni-optics.com
