13mm focal length Infrared Thermal Lens

Product Brief

Manufactured by BOSHI Optical Technology, this 13mm F1.0 Uncooled Thermal Lens is optimized for the 8‑12μm long‑wave infrared band. This Thermal Imaging Lens is perfectly matched with 640×512 resolution detectors with 12μm Pixel dimension. Adopting F1.0 large aperture, the lens captures faint infrared radiation to deliver clear thermal outputs under low‑contrast scenes. Its front optical element reaches IP67 protection grade, and exposed surfaces are covered with durable AR coating to sustain stable performance in complicated outdoor surroundings. The focus covers 1 meter to infinity, and the working temperature spans from ‑40℃ to +80℃. The compact M20×0.5 Mount supports convenient assembly. BOSHI Optical Technology carries out strict optical calibration to guarantee stable and consistent optical quality for mass integration of thermal imaging devices.

Detailed Product Description

Parameter

1. Focal Length & Aperture: This Uncooled Thermal Lens features fixed 13mm focal length together with ultra‑fast F1.0 aperture. The large aperture structure maximizes intake of infrared photons, which brings notable improvement on signal‑to‑noise ratio for matched thermal sensors, and lays foundation for high‑quality thermal image output.

2. Working Spectrum: It works within 8‑12μm LWIR band, which acts as the major atmospheric transmission window for passive thermal detection, enabling reliable thermal signal acquisition in most outdoor working conditions.

3. Detector Compatibility: The lens is tailored for 640×512 resolution detectors equipped with 12μm Pixel. It delivers diagonal 40.7° field of view, horizontal 32.6° field of view and vertical 26.3° field of view, and satisfies medium‑range observation requirements.

4. Mechanical & Environmental Specifications: It adopts M20×0.5 Mount for simple and reliable assembly. The front optical component realizes IP67 ingress protection. Operating temperature ranges from ‑40℃ to +80℃ so it adapts to extremely cold and hot outdoor environments. Focus range stretches from 1 meter to infinity, and supports thermal target detection for both near distance and far distance.

5. Optical Index: Overall transmittance reaches no less than 86%, relative illumination is no less than 75%. Distortion is controlled within ≤‑1.5%. Anti‑reflection coating is applied on exposed optical surfaces to cut surface reflection loss. All parameter indicators are strictly inspected by BOSHI Optical Technology for batch product consistency.

Performance Advantages

1. Outstanding low‑light thermal sensitivity. As an F1.0 LWIR Lens, it collects substantially more infrared energy compared with infrared lenses with smaller aperture value. Such capability lifts image definition during long‑distance detection tasks, and brings reliable imaging performance under low‑contrast thermal scenes.

2. Favourable optical uniformity. High relative illumination keeps uniform brightness across the whole image frame and avoids dark corner phenomenon. Low distortion preserves real geometric features of targets, and creates reliable image basis for target measurement and target recognition work.

3. High spectral utilization efficiency. AR coating plus ≥86% overall transmittance reduces infrared energy loss to the maximum extent. It can fully unlock the performance potential of matched uncooled infrared detectors, and give full play to the hardware capacity of Thermal Imaging Lens.

4. Powerful environmental adaptability. IP67 front‑end lens waterproof and dust‑proof structure removes the requirement for extra external protective windows for many installation scenarios. Wide operating temperature scope restrains defocus and performance drift when ambient temperature changes drastically. BOSHI Optical Technology completes multiple rounds of environmental reliability verification for this product.

5. Convenient compact integration. Standard M20×0.5 Mount supports seamless installation into miniaturized thermal cameras developed by cooperative system developers. The overall structure is compact and saves layout space for thermal imaging equipment.

Application Fields

1. Border security and perimeter surveillance. The Uncooled Thermal Lens supports round‑the‑clock outdoor thermal monitoring. It captures thermal signatures of intruding objects day and night, and assists perimeter intrusion detection for security sites.

2. Industrial predictive maintenance. This Thermal Imaging Lens picks up overheat thermal signals from power equipment, mechanical facilities and pipelines. It helps operators discover hidden overheating faults ahead of equipment breakdown and supports industrial equipment status inspection.

3. Automotive thermal vision. It serves for aftermarket infrared night‑vision driving assistance systems. The 8‑12μm spectral response helps vehicle systems detect road obstacles and living targets under night‑time or poor‑visibility driving conditions.

4. Unmanned systems. It works as thermal payload fitted on small UAVs and unmanned ground vehicles. It provides thermal imaging data for search and rescue missions, field patrol and situation perception tasks.

5. Fire prevention and forest monitoring. The LWIR Lens identifies early hidden heat sources inside forest areas. It supports early warning for wildfire risks before open flame emerges.

6. Building energy audit. It conducts thermal inspection for building structures. Users can locate heat loss position, air leakage point and insulation defects through thermal images to guide building energy‑saving renovation.

7. Marine surveillance. It realizes day‑night maritime target detection under foggy maritime conditions. It provides stable thermal imaging output for offshore monitoring tasks.