Product Description 4.1mm F1.0 M22 12um HD Lens Long-wave Infrared Thermal Imaging Lens
BOSHI LENS  is a leading China Standard M12 Lens manufacturer, supplier and exporter. Adhering to the pursuit of perfect quality of products, so that our Standard M12 Lens have been satisfied by many customers. Extreme design, quality raw materials, high performance and competitive price are what every customer wants, and that's also what we can offer you. We will provide you with the best after-sales service and timely delivery.

Advantages

1. Ultra-Wide Coverage with Zero Blind Spots

Featuring a 102° horizontal and 130° diagonal FOV, this lens captures a massive area at short distances. It maximizes situational awareness and drastically reduces monitoring blind spots.

2. Exceptional Thermal Sensitivity (F1.0 + >88% Transmittance)

Thermal imaging relies heavily on the lens's ability to capture infrared radiation. With an ultra-large F1.0 aperture and an Anti-Reflective (AR) coating yielding >88% transmittance, energy loss is minimized. This ensures high-contrast, low-noise, and highly detailed thermal images, even in total darkness, adverse weather, or scenarios with minimal temperature differentials.

3. High-Resolution Optimization and Uniform Image Quality

The lens is optimized for 640 x 512, 12μm sensors. While ultra-wide-angle lenses typically suffer from severe distortion, this model keeps distortion under 45%. Combined with a relative illumination of >80% (ensuring uniform brightness from the center to the edges), it guarantees high detection sensitivity across the entire frame without severe vignetting.

4. Industrial-Grade Reliability and Ultra-Light Design

Lightweight: At just 25 grams, it adds virtually no payload burden to mobile platforms.

Ruggedized: The IP67-rated front element and an operating range of -40° to +80° ensure long-term, maintenance-free stability against rain, snow, dust, and direct sunlight.

Product Performance

Core Optical Parameters:

Focal Length: 4.1mm. A short focal length that delivers an ultra-wide field of view (FOV), ideal for large-area surveillance and situational awareness.

F/# (Aperture): F1.0. This represents an ultra-large aperture in infrared optics, maximizing photon collection and ensuring exceptional thermal sensitivity (NETD).

Field of View (FOV): 130°(D) x 102°(H) x 83°(V). With a horizontal FOV exceeding 100°, it provides a sweeping, panoramic perspective.

Detector Compatibility:

Compatible Detector: 640 x 512, 12μm. It perfectly matches mainstream high-resolution, small-pixel-pitch infrared detectors, delivering sharp and detailed thermal imagery.

Environmental Reliability & Structure:

Operating Temperature: -40° to +80°. Engineered to industrial/military-grade standards to withstand extreme cold and intense heat.

Front Element Ingress Protection Rating: IP67. The front element features high-level dust and water resistance, allowing the lens to be exposed to harsh outdoor environments without requiring an additional protective enclosure.

Weight: ≈ 25g. Extremely lightweight, making it highly compatible with drones and portable devices.

Mount: M22 × 0.5. A compact, miniature threaded interface (a micro-infrared variant similar to S-Mount/M12).

Primary Applications

1. UAV Thermal Payloads (FPV / Commercial Drones)

Applications: Powerline inspection, forest fire prevention, search and rescue (SAR), and law enforcement.

Advantages: The 25g weight preserves drone battery life and flight time. The 130° FOV allows operators to scan vast areas in a single pass, significantly boosting inspection and search efficiency.

2. Automotive Night Vision & Advanced Driver Assistance Systems (ADAS)

Applications: Front-view or side-view infrared night vision systems for autonomous and commercial vehicles.

Advantages: The ultra-wide angle easily covers multiple lanes and sidewalks to detect pedestrians or wildlife. The F1.0 aperture ensures clear thermal profiling through dense fog, pitch-black nights, or high-beam glare, while the micro-size allows for seamless integration into bumpers or side mirrors.

3. Perimeter Security & Panoramic Thermal Surveillance

Applications: Boundary patrol, substations, oil fields, warehouses, and industrial parks.

Advantages: Achieves full-site coverage with fewer cameras, reducing overall infrastructure costs. The high IP rating ensures reliable, round-the-clock outdoor operation.

4. Firefighting & Portable Thermal Imagers

Applications: Firefighter helmet-mounted cameras and handheld search-and-rescue thermal imagers.

Advantages: In smoke-filled, zero-visibility environments, firefighters need a wide spatial awareness to locate hotspots or victims quickly. The ultra-wide angle, high transmittance, and compact weight perfectly meet these ergonomic and tactical needs.

5. Industrial Condition Monitoring & Machine Vision

Applications: Close-range thermal monitoring of enclosed or compact industrial systems (e.g., inside server cabinets, high-voltage switchgear, and electrical enclosures).

Advantages: In tight, confined spaces, the short-focal-length wide-angle lens can capture the temperature distribution of the entire equipment setup from a very short distance.

Our Starlight Lens can be installed in Smart home webcam, artificial intelligence camera.

4.1mm F1.0  M22 12um Lens Long-wave Infrared Thermal Imaging Lens Security Monitoring Starlight Lens, Standard M12 threaded interface Lens, with 2.0 F/NO, 6G structure, more lightweight, with high cost-effectiveness! If you are interested in our Standard Starlight Lens, you can consult us now, we will reply to you in time!

The product has the following specific characteristics：

1. Product features: Made of all plastic material, while ensuring the quality of the products, we can offer customers a lower purchase price..

2. Product advantages: Large angle, small size, Wide depth of field range.

We are eagerly awaiting your purchase and look forward to providing you with the best cooperation experience and deeper business collaboration.