Description
Introducing our industry-standard 3.7mm F2.5 M12 cone pinhole lens, the gold standard for high-performance covert surveillance and discrete embedded hardware integration. Distinguished by its classic 3.7mm focal length and a record-breaking 11mm ultra-short Total Track Length (TTL), this premium pinhole board lens is engineered to slip into ultra-thin faceplates without protruding. Delivering an optimized 70° horizontal field of view with minimal optical distortion, it captures highly natural, identity-verified video through microscopic panel gaps, making it the premier choice for financial ATMs, secure access control gates, and intelligence equipment.
Product Highlights
- Industry-Standard 3.7mm Pinhole: The definitive choice for global security integrators, offering a perfect balance between spatial awareness and target magnification through a tiny physical opening.
- Ultimate 11mm Flat Footprint: The hyper-compressed 11mm TTL optical length makes this the flattest lens in our lineup, resolving extreme clearance challenges in low-profile electronic housing.
- Low-Distortion 70° Natural Framework: The calibrated 70° horizontal F.O.V. drastically suppresses aggressive corner bending, providing linear, undistorted images optimized for facial recognition software.
- Micro-Cone Needle Silhouette: Built with a highly tapered conical front tip, ensuring the heavy optical body remains entirely hidden behind the panel plane for flawless hidden surveillance.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/3″ |
| Focal Length | 3.7mm (Standard Pinhole Optics) |
| Field of View (F.O.V.) | Diagonal 92° / Horizontal 70° / Vertical 55° |
| Resolution | Megapixel (MP) |
| Aperture | F2.5 (Fixed Iris) |
| Mount Type | M12 X 0.5 (Standard Micro Board Mount) |
| Focus Control | Manual |
| Zoom Control | Fixed |
| Total Track Length (TTL) | 11 mm (Extreme Ultra-Thin Profile) |
| Minimum Object Distance (M.O.D.) | 0.3 m |
This product is certified by RoHS and ISO9001 quality management system, supports third-party testing, and complies with EU and domestic security equipment access standards, ensuring reliable quality and full compliance.
Applications & Device Compatibility
Core Application Scenarios
This industrial-grade 3.7mm standard pinhole lens is explicitly engineered for point-of-sale security, corporate assets protection, and precision industrial lens data logging. Offering a highly natural 70-degree horizontal perspective, it excels as the primary optical sensor for banking automated teller machines (ATMs), smart vending machines, and secure self-service payment terminals where capturing a clear, undistorted portrait of the user is critical for fraud prevention. In advanced manufacturing and machine vision lens setups, its record-shattering 11mm thickness allows it to be embedded flush inside slim conveyor-belt side rails or heavy machinery control boxes, monitoring delicate mechanical processes through micro-holes without interfering with industrial workflows.
Compatible Device List
- Perfectly optimized for high-sensitivity 1/3-inch CMOS image sensors (including Sony, OmniVision, and SmartSens series).
- Direct fit for M12 hidden mini-camera modules, button-camera spy gear, and Tuya-powered smart smart-home peep-hole units.
- Ideal for integration into custom industrial machine vision enclosures, high-security safes, and undercover tactical gear housings.
- Fully supports factory customization for dual-band pass filters (650nm / 850nm / 940nm) to facilitate true invisible infrared nighttime illumination.
“Designed for industry-standard terminal security and low-distortion covert surveillance applications.”
Frequently Asked Questions
Q: Why is 3.7mm called the “industry standard” for pinhole lenses?
A: In the global security market, 3.7mm is historically the most widely adopted focal length for conical lenses. It avoids both the aggressive curving of ultra-wide options (like 2.5mm) and the tight zooming of telephoto optics, providing a 70° horizontal view that matches standard portrait framing perfectly.
A: In the global security market, 3.7mm is historically the most widely adopted focal length for conical lenses. It avoids both the aggressive curving of ultra-wide options (like 2.5mm) and the tight zooming of telephoto optics, providing a 70° horizontal view that matches standard portrait framing perfectly.
Q: Does this lens create a heavy bending distortion on the edges of the image?
A: No. Thanks to the 3.7mm design and 70° horizontal perspective, this lens features exceptional distortion control. Unlike wider mini-lenses, the straight lines of doors, walls, and faces remain flat and natural, which heavily benefits AI-driven facial recognition algorithms.
A: No. Thanks to the 3.7mm design and 70° horizontal perspective, this lens features exceptional distortion control. Unlike wider mini-lenses, the straight lines of doors, walls, and faces remain flat and natural, which heavily benefits AI-driven facial recognition algorithms.
Q: How does the 11mm TTL benefit my device’s hardware design?
A: With a Total Track Length (TTL) of just 11mm, this lens is incredibly flat. It means your engineering team can build ultra-thin product chassis, keeping the camera sensor module entirely flush with the outer shell, saving massive amounts of internal design space.
A: With a Total Track Length (TTL) of just 11mm, this lens is incredibly flat. It means your engineering team can build ultra-thin product chassis, keeping the camera sensor module entirely flush with the outer shell, saving massive amounts of internal design space.
Q: Is the focus on this M12 pinhole lens adjustable?
A: Yes. It features a manual focus mechanism. By rotating the lens within its thread on the M12 mount board, you can adjust the focus for targets ranging from 0.3 meters away to infinity, then lock it securely using an M12 retaining collar.
A: Yes. It features a manual focus mechanism. By rotating the lens within its thread on the M12 mount board, you can adjust the focus for targets ranging from 0.3 meters away to infinity, then lock it securely using an M12 retaining collar.
Q: Can we order this pinhole lens with built-in 940nm IR-pass filtering?
A: Yes, we offer extensive OEM/ODM customization. We can factory-install specific IR filters (such as 850nm or 940nm) to match your invisible infrared night-vision setups for true undercover operations.
A: Yes, we offer extensive OEM/ODM customization. We can factory-install specific IR filters (such as 850nm or 940nm) to match your invisible infrared night-vision setups for true undercover operations.
