50mm Thermal Imaging Lens

Product Brief Description

This high‑performance thermal imaging lens is developed and manufactured by ShangHai SILK Optical Technology CO., LTD, tailored for uncooled long‑wave infrared thermal imaging devices. Featuring 50mm focal length and bright F1.0 large aperture, this infrared lens delivers outstanding light-gathering capability for low‑light thermal detection scenarios. It matches 640×512,12μm infrared detectors, working within classic 8‑12μm long‑wave infrared spectral band.

With IP67 front‑element waterproof rating, robust‑40℃~+80℃ working temperature adaptability, this thermal imaging lens supports 2m‑infinity focus adjustment. High transmittance over 90% and relative illumination ≥94% guarantee uniform, sharp thermal image output. Widely adopted for outdoor monitoring, perimeter security and thermal observation, this infrared lens provides stable, reliable optical performance for various harsh‑environment infrared imaging systems.

Detailed Product Description

Parameter

 Optical Specs: 50mm focal length with F1.0 large aperture; working wavelength 8‑12μm long wave infrared, perfectly designed for 640×512,12μm compatible detector. The field of view reaches 11.27°(D)×8.8°(H)×7.0°(V), offering moderate field coverage for long‑distance thermal observation.

 Mechanical & Environmental Specs: M34×0.75 mount for easy assembly; focus range from 2 meters to infinity. Front‑element achieves IP67 ingress protection rating. Operating temperature covers‑40℃ to +80℃, adapting to extreme cold and hot field conditions. Exposed optics adopt AR anti‑reflection coating.

 Image Quality Specs: Transmittance ≥90%, relative illumination ≥94%, distortion ≤‑1.0%. ShangHai SILK Optical Technology CO., LTD strictly controls these indexes to ensure consistent image performance of this thermal imaging lens.

Performance Advantages

 Superior light gathering: F1.0 large aperture of this infrared lens greatly improves infrared photon intake, enhancing thermal image signal‑to‑noise ratio under faint thermal radiation conditions.

 Excellent imaging uniformity: ≥94% relative illumination ensures minimal vignetting, bright and uniform image across the whole sensor surface; ≥90% transmittance brought by high‑quality AR coating maximizes infrared energy utilization.

 Harsh‑environment durability: IP67 front‑element waterproof grade plus wide‑range working temperature makes this thermal imaging lens resist dust, moisture and drastic temperature fluctuation for 24/7 outdoor operation.

 Low distortion optical design: Distortion ≤‑1.0%, reduces geometric distortion for accurate thermal target measurement and observation.

 Flexible focusing: 2m‑∞ focus range supports both near‑range inspection and long‑range monitoring for the uncooled infrared imaging system.

Application Fields

 Perimeter security & border surveillance: This thermal imaging lens is widely integrated into outdoor thermal cameras for day‑night intrusion detection, all‑weather perimeter alert.

 Industrial thermal inspection: Used for equipment temperature monitoring, overheat fault diagnosis in factory, power station and pipeline inspection.

 Outdoor observation & search rescue: Applied in infrared observation devices for forest fire prevention, field search‑and‑rescue under total darkness or heavy fog.

 Vehicle‑mounted infrared system: Fits vehicle‑borne thermal modules, delivers reliable infrared optical performance under complex outdoor environment.

 Uncooled infrared camera assembly: ShangHai SILK Optical Technology CO., LTD supplies this infrared lens as core optical component for OEM & ODM thermal camera manufacturers.