Protected aluminum and enhanced aluminum start from the same vacuum-deposited aluminum film. The difference is what goes on top: protected aluminum adds a single dielectric overcoat that stops oxidation and makes the surface cleanable, with almost no change to the reflectance curve, while enhanced aluminum…
A filter described as “850 nm,” “550 nm longpass,” or “10 nm bandpass” is not fully specified by those nominal numbers alone. Real optical filters are manufactured and measured against an allowable range. A nominal 850 nm bandpass filter, for example, may require its actual…
From May 14 to 16, 2024, the 16th German Optoelectronics Laser Exhibition Optatec 2024 officially opened. As a trade exhibition, the three-day Optatec 2024 will bring together optical enthusiasts from different industries and many countries. This highly specialized leading event involves optical technology, image processing,…
A machine vision system may use an 850 nm or 940 nm LED, a monochrome camera with good near-infrared sensitivity, and stable exposure settings—yet still produce images whose contrast changes with factory lighting, sunlight, or reflections from nearby equipment. The problem is often not the…
Choosing a narrow bandpass filter manufacturer comes down to three questions: can their coating process hold your center wavelength tolerance across the full clear aperture, do they measure the filter under your actual angle and cone conditions, and is the blocking specification real across your…
From February 26 to 28, 2025, the Asia Photonics Expo (APE 2025) will be held in Hall L1 of the Sands Convention and Exhibition Center in Singapore! As the top event in the optoelectronics field in the Asia-Pacific region, this exhibition focuses on cutting-edge fields…
The 20th anniversary of LASER World in 2025 will be held at Shanghai New International Expo Center (Hall 3, Halls N1-N5, E7-E4) from March 11 to 13! As the largest and highest-level optoelectronics industry event in Asia, this exhibition focuses on cutting-edge laser technology, optical…
Dear Valued Partner, We are thrilled to invite you to visit giaiphotonics Tech Co., Ltd. (GIAI) at OPIE’2025 (Optics & Photonics International Exhibition) from April 23–25, 2025, at Pacifico Yokohama, Japan (Booth R-01). As a leading innovator in optical components and coatings, we look forward…
Dear Esteemed Colleagues and Partners, On behalf of GIAI, a leading manufacturer of optical lenses, we are thrilled to extend our sincere invitation to you and your company representatives to participate in the prestigious SPIE.Photonics West 2025 exhibition. This prestigious event serves as a pivotal…
Welcome to Our Booth!We will attend SPIE Photonics West 2019(The Moscone Center. San Francisco) hold on Feb.5th，2019-Feb.7th，2019.And we sincerely invite you to visit our booth!BOOTH NO.: #2127-G
A useful custom optical window specification should define more than material and dimensions. At minimum, it should describe the operating wavelength, substrate or material grade, geometry, thickness, clear aperture, optical quality, surface imperfections, parallelism or wedge, coating performance, angle of incidence, environment, inspection conditions, and…
To choose an optical filter for machine vision, start from the illumination spectrum rather than the filter catalog. Match the filter passband to the light your system actually uses, then verify that the passband still lines up once you account for the range of angles…
