35mm focal length Thermal Imaging Lens

Product Brief Description

Developed and manufactured by BOSHI Optical Technology, this high‑performance 35mm thermal imaging lens targets long wave infrared thermal imaging devices operating within 8‑12μm spectral band. The thermal imaging lens adopts F1.0 large aperture design to achieve outstanding light gathering capacity, which can generate clear thermal imaging output under low‑light and complex ambient conditions. It provides full compatibility with 640×512 12μm uncooled infrared detectors. Its focus range covers 2m to infinity to support near‑distance observation and long‑range monitoring. The front element achieves IP67 ingress protection rating to sustain stable operation in tough outdoor conditions. With transmittance maintained above 92 percent and low distortion feature, this optical component delivers consistent image quality for industrial monitoring and perimeter security thermal vision systems.

Detailed Product Description

1. Parameter

BOSHI Optical Technology calibrates every parameter of this uncooled infrared lens for real‑world field deployment. Each specification item supports stable performance output for thermal imaging equipment integration.

Focal Length & Aperture: This thermal imaging lens features 35mm focal length and F1.0 large aperture. Large aperture value raises luminous flux effectively, and this trait carries vital importance for weak‑signal capture of long wave infrared lens.

Detector Compatibility: The lens matches 640×512 12μm detector. It realizes seamless adaptation for mainstream uncooled infrared hardware and fits mass‑produced thermal camera projects.

Optical Index: Transmittance reaches 92 percent or higher. Relative illumination stays at 90 percent or higher. Distortion value is less than negative 1.5 percent. High‑definition exposed optics coating cuts infrared reflection loss for the thermal imaging lens.

Focus & Field of View: Horizontal field of view measures 12.5 degrees and vertical field of view measures 10.3 degrees. Focus range extends from 2m to infinity. Users can complete close‑range inspection as well as long‑distance observation with this lens.

Mechanical & Environmental Spec: M34×0.75 mount structure facilitates assembly work. Front‑side structure meets IP67 waterproof standard. Operating temperature ranges from ‑40℃ to plus 80℃. Working wavelength sits at 8‑12μm which satisfies standard long wave infrared thermal imaging requirements.

2. Performance Advantages

BOSHI Optical Technology implements strict optical testing on every thermal imaging lens unit before product delivery. Multiple core advantages create reliable value for end thermal systems.

High‑efficiency Infrared Light Utilization. This high‑grade thermal imaging lens keeps transmittance above 92 percent to reduce infrared signal loss. High‑definition anti‑reflection coating further lifts signal receiving efficiency of long wave infrared lens. More infrared signal can arrive at detector surface to strengthen image detail presentation.

Reliable Image Uniformity. Relative illumination above 90 percent delivers steady brightness across the whole image frame. Users will not encounter obvious dark corners during equipment operation. Distortion controlled below negative 1.5 percent preserves real‑scene geometry information. Monitoring output can restore object outline and spatial relation accurately.

Strong Outdoor Environment Adaptability. IP67 protection for front element blocks dust rain and splash interference. Wide operating temperature from ‑40℃ to plus 80℃ guarantees stable running under frigid winter and high‑temperature outdoor scenarios. The uncooled infrared lens maintains consistent performance under variable weather conditions.

Flexible Focus Adjustment Capacity. Focus range covering 2m to infinity allows operators to switch between short‑range spot checking and long‑range surveillance. System owners do not need to replace lens hardware when application distance changes.

Standardized Interface Design. M34×0.75 thread mount simplifies thermal camera integration process. Customers can finish fast assembly when building finished thermal devices with this thermal imaging lens.

3. Application Fields

Perimeter Surveillance and Border Defense. This thermal imaging lens equips outdoor thermal cameras to achieve 24‑hour all‑weather intrusion detection. The large‑aperture infrared lens captures heat signatures day and night without visible light input. It supports perimeter early warning tasks for various sites.

Industrial Condition Monitoring. The long wave infrared lens supports equipment over‑heat inspection and power‑grid equipment thermal inspection. IP67 performance enables the thermal imaging lens to run stably on outdoor industrial sites. Staff can discover hidden overheat risk through thermal imaging output.

Security and Traffic Monitoring. This thermal imaging lens can be integrated inside thermal surveillance cameras. It undertakes traffic flow monitoring and abnormal heat source alarm tasks inside tunnels and along road sides. It helps traffic management teams complete all‑day risk identification.

Fire Prevention and Early Warning. The 8‑12μm infrared lens identifies early‑stage fire heat signatures. It applies to forest fire prevention and warehouse risk monitoring. Early heat signal capture wins response time for fire control work.

Vehicle‑borne Thermal Observation. Robust mechanical structure of this thermal imaging lens fits vehicle‑mount thermal systems. It delivers steady all‑weather reconnaissance capacity for moving vehicle platforms.