Description
Introducing our high-performance 3.7mm F2.5 3MP M12 flat-head pinhole lens, masterfully engineered for ultra-high-definition covert surveillance and flush-mount hardware integration. Departing from traditional tapered cone profiles, this premium flat-surface pinhole board lens features a uniform cylindrical barrel designed to press tightly against glass, acrylic, or metallic plates. Delivering a crisp 3 Megapixel resolution and an optimized 70° horizontal field of view, it shoots flawless 1536P video through a single micro-aperture without causing optical reflections, making it the premier choice for premium smart kiosks, touch-screen intercoms, and seamless biometric gates.
Product Highlights
- Flush-Surface Flat Head Design: Features a specialized flat-front barrel that eliminates the gap between the lens and the enclosure window, completely preventing internal light reflections for maximum hidden surveillance clarity.
- 3MP Crystal-Clear Edge Resolution: Upgrades your hidden network to 3 Megapixel Ultra HD, providing excellent relative illumination and uniform edge-to-edge brightness that standard cone optics often lose.
- Low-Distortion 70° Linear View: The calibrated 70° horizontal F.O.V. drastically suppresses aggressive corner bending, providing linear, undistorted images optimized for AI facial recognition algorithms.
- Ultra-Flat 13mm Mechanical Profile: The hyper-compressed 13mm TTL optical length resolves strict clearance challenges in low-profile electronic housing, sitting perfectly flush inside slim enclosures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Image Format | 1/3″ |
| Focal Length | 3.7mm (Flat-Head Pinhole Optics) |
| Field of View (F.O.V.) | Diagonal 92° / Horizontal 70° / Vertical 55° |
| Resolution | 3 Megapixel (3MP Ultra HD) |
| 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) | 13 mm (Ultra-Thin Space-Saving 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 3MP flat-head pinhole lens is explicitly engineered for touch-screen interface security, glass-panel covert logging, and precision industrial lens data tracking. Offering a highly natural 70-degree horizontal perspective with upgraded 3 Megapixel clarity, it excels as the primary optical sensor for smart touch-screen banking automated teller machines (ATMs), automated ticketing kiosks, and secure self-service retail terminals where the lens must sit directly behind a flat sheet of plexiglass or dark acrylic. In advanced manufacturing and machine vision lens setups, its straight-barrel cylindrical profile allows it to be inserted flush into flat machinery bulkheads or electronic equipment rack doors, monitoring automated sorting processes through micro-holes without any protruding hardware that could catch on moving parts.
Compatible Device List
- Perfectly optimized for high-sensitivity 1/3-inch 3MP/2MP CMOS image sensors (including Sony, OmniVision, and SmartSens architectures).
- Direct fit for M12 flat-front camera modules, high-definition IPC board assemblies, and Tuya-powered smart smart-home peep-hole units.
- Ideal for integration into custom industrial machine vision enclosures, flat-panel access control keypads, and luxury vending machine housings.
- Fully supports factory customization for dual-band pass filters (650nm IR cut / 850nm / 940nm IR pass) to facilitate true invisible infrared nighttime illumination.
“Designed for flush-mount terminal security and flat-surface covert surveillance applications.”
Frequently Asked Questions
Q: What is the mechanical difference between this flat-head pinhole lens and a cone pinhole lens?
A: A cone pinhole lens has a tapered tip meant to sit inside a drilled funnel hole. This flat-head pinhole lens has a straight cylindrical body with a flat front face. This allows you to press the lens directly against a flat sheet of glass or dark acrylic panel, completely avoiding the internal reflections and glare that cone lenses create when placed behind glass windows.
A: A cone pinhole lens has a tapered tip meant to sit inside a drilled funnel hole. This flat-head pinhole lens has a straight cylindrical body with a flat front face. This allows you to press the lens directly against a flat sheet of glass or dark acrylic panel, completely avoiding the internal reflections and glare that cone lenses create when placed behind glass windows.
Q: Does this flat-front design cause vignetting or dark corners on the image?
A: No. Because it doesn’t have a restrictive cone tip, it actually delivers a higher relative illumination. The optical circle perfectly matches the active area of 1/3″ sensor chips, ensuring consistent brightness, excellent contrast, and sharp details from the center out to the furthest corners.
A: No. Because it doesn’t have a restrictive cone tip, it actually delivers a higher relative illumination. The optical circle perfectly matches the active area of 1/3″ sensor chips, ensuring consistent brightness, excellent contrast, and sharp details from the center out to the furthest corners.
Q: Why is the 13mm TTL important for embedded product designers?
A: The 13mm Total Track Length (TTL) confirms that the lens has a very low physical profile. It allows hardware engineers to design ultra-thin faceplates or position the camera module inside incredibly shallow gaps where standard wide-angle board lenses would physically stick out.
A: The 13mm Total Track Length (TTL) confirms that the lens has a very low physical profile. It allows hardware engineers to design ultra-thin faceplates or position the camera module inside incredibly shallow gaps where standard wide-angle board lenses would physically stick out.
Q: Is the focus on this 3MP flat-head M12 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 a standard 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 a standard 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.
