Shenzhen Zhongke Nanguang Technology Co., Ltd.
| TTL | 13.54mm |
| F/No | F1.8 |
| Lens Structure | 2G4P |
| Delivery Time | Samples Within 7 Days |
| CRA | <26.9° |
| FOV | H160° V96° D175° |
| Application | Wireless Video Doorbell |
| Operating Temperature | -40°C~+85°C |
| Focal-Length | 1.98mm |
| Focal Length | 1.98mm |
| Supply Ability | 100K Pcs/month |
| Optical Back Focal Length | 3.89mm |
| F No | F1.8 |
| Brand Name | OKSEE |
| Model Number | OKS-3604-A4 |
| Certification | CE, ISO |
| Place of Origin | CHINA |
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Product Specification
| TTL | 13.54mm | F/No | F1.8 |
| Lens Structure | 2G4P | Delivery Time | Samples Within 7 Days |
| CRA | <26.9° | FOV | H160° V96° D175° |
| Application | Wireless Video Doorbell | Operating Temperature | -40°C~+85°C |
| Focal-Length | 1.98mm | Focal Length | 1.98mm |
| Supply Ability | 100K Pcs/month | Optical Back Focal Length | 3.89mm |
| F No | F1.8 | Brand Name | OKSEE |
| Model Number | OKS-3604-A4 | Certification | CE, ISO |
| Place of Origin | CHINA | ||
| High Light | 170 Degree Low Vignetting ，2MP 1080P Doorbell Lens ，Wireless Security Door Bell | ||
.OKS3604-A4-650 is a cost-effective ultra-wide M12 fisheye lens developed by OKSEE Optical, specially customized for automotive surround view and panoramic security monitoring.
Adopting 6 pieces all-glass optical design with 650nm IR cut filter, it effectively filters infrared interference and restores true color in daytime. The high 67% relative illumination ensures consistent brightness across the whole frame, avoiding dark corners common on cheap wide-angle lenses.
With F2.0 large aperture design, it greatly improves light intake, delivering clean and clear images under dim night environments. The ultra-compact 13.4mm TTL structure and 4.5g light weight perfectly fit mini hidden camera modules for passenger cars, trucks, buses and outdoor CCTV equipment.
All lenses pass strict reliability tests including high/low temperature storage, thermal cycle shock and vibration test, stable performance under complex vehicle & outdoor temperature and humidity changes. Standard M12×0.5 interface supports mass assembly for various camera modules.
| Lens Structure | 2G4P |
| Operating Temperature | -40°C~+85°C |
| Waterproof Level | IP69K |
| MAX Image Circle | 6.8mm |
| Focal-Length | 1.98mm |
| IR Filter | 650nm |
| Relative Illumination | 55% |
| CRA | <26.9° |
| Mechanical Back Focal Length | 2.99mm |
| Optical Back Focal Length | 3.89mm |
Automotive Electronics: 360° vehicle surround view system, reversing rearview camera, streaming CMS mirror, commercial truck/bus monitoring, ADAS auxiliary camera
Security Surveillance: Panoramic fisheye IP camera, parking lot, factory, store all-day monitoring, low-light outdoor waterproof camera
Intelligent Hardware: Video doorbell, access recognition camera, conference panoramic camera, retail passenger flow statistics
Industrial Vision: Mini machine vision inspection, equipment monitoring, logistics scanning camera
Mechanical customization: Adjust TTL, front barrel diameter, back focal length
Appearance: Laser engraving customer LOGO, custom anodized barrel color
Optical: Modify FOV, CRA, distortion according to sensor chip
Package: Custom color box, multi-language manual, printed inner bags
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Company Details
Year Established:
2008
Employee Number:
380~400
Ecer Certification：
Verified Supplier
Shenzhen Zhongke NanGuang Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of optical lens products. Its subsidiary, oksee, was established in 2008. With nearly two decades of experience in researching and producing optical lenses, the... Shenzhen Zhongke NanGuang Technology Co., Ltd. is a high-tech enterprise specializing in the research, development, production, and sales of optical lens products. Its subsidiary, oksee, was established in 2008. With nearly two decades of experience in researching and producing optical lenses, the...
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