Introduction:
Narrow-band interference filter is an optical device with a narrow bandwidth, which allows light in a specific wavelength band to pass through and cuts off or reflects other short-wavelength wavelength bands. The material is evaporated in high vacuum, the film layer has good compactness and high imaging definition. Products are mainly used in fluorescence analyzer, microplate reader, cable TV upgrade equipment, wireless transmission equipment, mobile phone barcode scanning, infrared electronic whiteboard, infrared camera, infrared touch screen, iris recognition, infrared medical equipment, infrared ink recognition, red film recognition, Face recognition sensor system, handheld infrared laser rangefinder, laser rangefinder, optical instruments, medical and health equipment and testing instruments.
Applications of IR Filters
Infrared filter refers to a deep red filter for infrared photography. Even if the color is not too dark, it will have corresponding effects. Infrared filters are mainly used in the field of security monitoring, infrared gas analyzers, night vision products, infrared detectors, infrared receivers, infrared sensors, infrared communication products . Specific products such as: surveillance cameras, remote controls, infrared curtain wall products, infrared sensor toilets, faucets, hand sanitizer devices, infrared thermometers, infrared printers, interactive electronic whiteboards, infrared touch screens, fingerprint recognition machines, etc.
Infrared filter function, that is to filter out infrared rays: The color surveillance camera CCD can also sense infrared rays, because it will sense infrared rays, which will cause the DSP to fail to calculate the correct color. Therefore, a filter must be added to isolate the infrared part of the light. Open, so only the color CCD needs to install the filter, and the black and white does not need to be trimmed to enter the light: because the surveillance camera CCD is composed of photoreceptors (CELL), it is best to
850nm Narrowband Filter Optical Parameters:
Substrate: K9, Quartz, B270, BK7, Float glass and other optical glass
Incident angle: 0° (customizable incident angle)
Dimensional tolerance: ± 0.1 mm
Thickness tolerance: ± 0.1 mm
Center wavelength tolerance: 850 ± 5 nm
Clear area gt;=90%
Cut-off band: 200--1200 nm
Cutoff depth gt;OD4 OD6
Surface flatness: λ/4-λ/10@632.8 nm
Surface cleanliness: 60-40, 40-20
Shape: square, round, special shape.
Product name: 850nm narrow bandpass filter
Rectangle Size: 41mm x 6.1mm
Thickness: 0.3mm/0.7mm
(If you need different sizes or different frequency bands and more quantities, please contact us, and then we will give you a quotation.)
Optical index
Center wavelength: 850 +-20 nm
Half bandwidth: 40nm
Peak transmittance: >90%
Cut-off depth: <1%
Color and material: mirror glass
Application
Iris recognition, wireless transmission equipment, infrared electronic whiteboard, infrared camera, infrared touch screen, infrared medical instrument, infrared ink recognition, face recognition sensor system, handheld infrared laser rangefinder, laser rangefinder, optical instrument, medical equipment and testing instruments etc..
Special statement : due to various product size requirements different technical requirements different procurement quantity different all products need according to customer service purchasing situation and pricing thank you
Package
Rectangle =41mm x 6.1mm ,Thick-0.3mm/0.7mm 850nm IR Band Pass Filter 1PCS
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Shipping rates for orders shipped internationally
Standard Shipping from China/Hong Kong/Taiwan to worldwide.--- (Delivery time:11~35 Days )---(Some countries need more than 40 days)
If you need (2-5 days) Fast delivery, please select Express (EMS, FedEx, UPS, DHL). --- (need to pay freight)
Shipping
We ship within 1~2 business day once payment completed.
Import duties, taxes, and charges are not included in the item price or shipping cost. These charges are the buyer&x27;s responsibility.
Please check with your country&x27;s customs office to determine what these additional costs will be prior to buying.
Please ensure address information with your payment, Please check your full name and full address (Post Code and phone number is very important for International delivery)
Shipping detail warning notes
If the product is contrary to local customs regulations.please think over again if you really want to buy it before purchase and buyers have the duty to custom clearance.
Russian Buyer should leave your full name or may put you in trouble.
Argent Buyer can only buy twice per year oversea and beyond 25 USD should pay 50% taxes
European Buyer need EORI Number Especially German.Please leave your EORI NO. when purchase ship in Express
Brazil Buyer need VAT Number when ship in Express
Saudi Arabia Buyer ship in Express need a copy file of the recipient of the valid identity (take a clear photo and upload it in leaving a note for me to print out) etc.