Day/Night 850 Narrowband Filter
This 850nm day/night narrowband filter uses a multilayer coating on glass to control transmission and reflection, passing 850nm infrared light while blocking other bands.
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Overview
This 850nm day/night narrowband filter uses a multilayer coating on glass to control transmission and reflection, passing 850nm infrared light while blocking other bands.
Applications
Vehicle cameras and security equipment. Biometric systems for face and fingerprint recognition in access-control and attendance terminals; vehicle cameras for dashcams and driver assistance; security equipment for infrared surveillance.
Key Features
High transmission of the selected infrared band improves image clarity across lighting conditions and supports stable camera operation. This filter efficiently passes 850nm infrared while filtering other wavelengths to reduce stray-light interference. Peak transmission reaches 85% or higher for clear low-light images. Stable performance in bright light supports day/night changes. FWHM is below 10nm and center-wavelength error is controlled within ±0.5nm. Thickness below 1.2mm facilitates compact integration. Strong background-light rejection maintains image quality even under bright illumination.
Datasheet
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Supplier Information
Huizhou Dingxin Optoelectronics Co., Ltd. was founded in Shenzhen in March 2011. It is a professional optical thin-film product service provider integrating R&D, production, sales, and service. The company brings together a group of industry veterans, has formed a strong R&D technical team, and possesses advanced high-precision processing equipment such as Japan Shincron and Optorun coating machines, Japan DISCO dicing machines, and ASM automatic dispensing and mounting machines. It has class 10,000 and class 1,000 cleanrooms and class 100 purification benches to ensure product cleanliness, and has established a complete quality management system. In December 2018, the company relocated entirely to Yalin Park, No. 5 Tongsheng East Road, Shuikou Street, Huicheng District, Huizhou City, with a factory workshop area of about 5,500 square meters.
The main products currently include optical communication filters, chip components, blue glass filter wafers/square pieces, IR-Cut filters (square/circular), various narrowband filters, bandpass filters, long-wave & short-wave pass filters, optical cover glass, galvanometer lenses, mirrors, laser windows, lenses, optical device ball lens coating, etc. The products are mainly used in optical communication connection devices, various digital camera lenses, automotive lenses, security surveillance lenses, fingerprint recognition, mobile phone camera lenses and camera modules, biometric identification, laser applications, biomedical instruments, AR/VR artificial intelligence wearable devices, and other intelligent application fields.
The company adheres to the founding concept of "reform and innovation", insists on the quality policy of "striving for perfection in products, wholeheartedly in service", abides by the five-core corporate culture concept of Dingxin Optoelectronics, conforms to the general trend of information and intelligent development, and is committed to building Dingxin Company into a platform for all Dingxin people to succeed!
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