19mm focal length Thermal Imaging Lens

Product Brief Introduction

This F1.0 19mm Infrared Thermal Lens developed by BOSHI Optical Technology is a high‑performance optical component tailored for long‑wave infrared thermal imaging systems that operate within the 8‑12μm wavelength band. This 19mm Infrared Lens supports 640×512,12μm infrared detectors, and strikes a fine balance between moderate horizontal field of view and remarkable light gathering capability. Manufactured by BOSHI Optical Technology, this Long Wave Infrared Lens applies AR Coating over all exposed optical surfaces and delivers IP67 front‑element waterproof construction to cope with complicated outdoor harsh conditions. It features adjustable focus covering 0.5 metre to infinity and maintains steady optical performance across ‑40℃ to +80℃, bringing satisfactory transmittance and relative illumination output. It acts as dependable optical hardware for industrial monitoring, perimeter security as well as temperature measurement thermal cameras.

Detailed Product Description

1. Parameter Analysis

Optical Specifications: This 19mm Infrared Lens comes with ultra‑large aperture F1.0, its horizontal field of view can reach 22.85 degrees, which balances detection distance and scene coverage capacity well. Its operating wavelength falls on the 8‑12μm long‑wave infrared atmospheric window, which serves as core spectrum band for passive thermal imaging. The Thermal Imaging Optics can collect sufficient infrared radiation for image reconstruction.

Detector Compatibility: The optical structure is optimised to fit 640×512 resolution together with 12μm pixel pitch infrared detectors. It can perfectly match mainstream Uncooled IR Lens sensor modules available on the market.

Mechanical & Environmental Parameters: It adopts M25×0.5 Mount standard thread structure to facilitate installation and assembly work. The focus adjustment range covers 0.5 metre to infinity, and it can satisfy observation demands for both close‑range targets and long‑distance scenes. The working temperature range extends from ‑40℃ to +80℃, which adapts to ultra‑cold and high‑temperature working environments. The front optical component achieves IP67 ingress protection grade to resist outdoor dust and water intrusion.

Optical Quality Indexes: Exposed optical surfaces adopt AR Coating treatment. The overall transmittance of this Long Wave Infrared Lens can achieve no less than 90 percent. Its relative illumination stays above 86 percent. Distortion value is controlled below minus 10 percent to guarantee imaging geometry performance.

2. Performance Advantages

1. Superior Light Collection: The F1.0 ultra‑large aperture structure raises receiving efficiency of infrared photons significantly. When thermal radiation signal is weak, thermal cameras equipped with this 19mm Infrared Lens still can output clear temperature contrast images.

2. High Optical Efficiency: AR Coating cooperates with the optical lens group to cut down infrared energy loss. Overall transmittance keeps above 90 percent. Relative illumination above 86 percent keeps image brightness uniform from image centre toward edges, and effectively avoids dark corner phenomenon on imaging picture.

3. Harsh Environment Adaptability: The front‑end lens achieves IP67 protection level, which blocks dust invasion and splash water erosion. The wide working temperature scope suppresses optical thermal drift effectively. BOSHI Optical Technology carries out strict temperature adaptability verification for this Thermal Imaging Optics, so stable imaging performance can be maintained under frequent temperature change.

4. Flexible Focus Adjustment: Focus range from 0.5 metre to infinity supports seamless switch between short‑distance target inspection and long‑range monitoring tasks. Users can finish focus tuning according to actual object distance requirements.

5. Controllable Distortion: Distortion index stays below minus 10 percent. It lowers geometric deformation of output images, and lifts measurement precision for temperature measurement relevant application scenarios.

6. Standardized Interface: M25×0.5 Mount standard thread can realise fast docking and integration with most mainstream uncooled infrared thermal camera assemblies on the market. It reduces custom modification workload for system integrators.

3. Application Field

1. Perimeter Security & Border Monitoring: Security optical product is one key product direction of BOSHI Optical Technology. This Uncooled IR Lens can be installed on outdoor thermal surveillance cameras. It implements all‑day intruder detection without visible light assistance. Typical usage scenarios include factory perimeter fence monitoring, park boundary protection and frontier inspection work.

2. Industrial Predictive Maintenance: This 19mm Infrared Lens can be assembled on thermal inspection equipment. Staff can utilise it to discover overheating faults for power facilities, mechanical bearings, electrical cabinets and pipeline systems. Early fault discovery helps avoid unexpected equipment shutdown loss.

3. Fire Prevention & Early Warning Systems: The Long Wave Infrared Lens can be deployed in forest fire monitoring projects and warehouse fire risk inspection work. It can capture abnormal high‑temperature points in advance and offer early warning signal for fire accidents.

4. Vehicle-mounted Thermal Vision Systems: It serves as night‑time auxiliary visual component for special vehicles. Under full‑dark environment or heavy‑fog weather condition, it finishes detection work for pedestrians, road obstacles and wild animals.

5. Building Energy Conservation Detection: It can be matched with portable thermal imagers. Workers apply this Thermal Imaging Optics to check building wall heat loss situation, air leakage position and insulation layer defect problems. It provides data support for building energy‑saving renovation.

6. Unmanned System Payloads: This product can be integrated into UAV devices. It undertakes aerial thermal survey, environment monitoring and search rescue tasks. The IP67 performance gives guarantee for UAV outdoor flight operation.