Shanghai Silk Optical Technology Co., Ltd. Since its establishment in 2016, Shanghai Silk Optical has been consistently committed to the design, development, manufacturing, and sales of optical lenses and components. We are a National High-tech Enterprise honored with the prestigious "Specialized, Refined, Unique and Innovative" (SRUI) and "Little Giant" titles in Shanghai. Deeply rooted in the fields of security surveillance, healthcare, optoelectronic displays, and automotive electronics, the company leverages its profound R&D and manufacturing expertise to fulfill its core mission: providing high-performance, cost-effective optical products to the global market.
READ MORE3 Major core business
20 years
300 +
10000 k/moon
Exceeding 2 million lenses per month
Boshi Optoelectronics is born, dedicated to the optical industry
Planned optical accessory production capacity of 10 million yuan per month
Security lenses, automotive lenses, medical lenses

A security camera can produce a clear image during the day and still struggle when a bright light enters the scene. Streetlights, vehicle headlights, reflective signs, low-angle sunlight, and nearby infrared illuminators can all create unwanted artifacts.

When a camera engineer compares two lenses, optical specifications usually get most of the attention. Focal length, aperture, field of view, resolution, and distortion are all important. Yet before any of those specifications can be used, the lens has to fit the camera mechanically.

A surveillance camera is expected to produce a natural-looking image in daylight and remain useful after the sun goes down. These two operating conditions create a challenge that is easy to overlook: the image sensor may respond to light beyond the range of human vision.

A camera may need a front window to keep out dust, moisture, cleaning chemicals, or accidental contact. In outdoor surveillance, industrial inspection, vehicle systems, and equipment exposed to harsh environments, this protective surface can be essential.But placing a piece of glass in front of a lens changes the optical system. Even a flat, transparent window can introduce reflections, reduce transmission, create ghost images, or affect focus if it is not accounted for in the design. The result may be a camera that passes a basic visual check but loses contrast under difficult lighting.

A dash camera may appear to be a straightforward imaging product: point a camera through the windshield, record the road, and save the footage. In practice, the lens must handle a difficult combination of conditions. The scene can move from bright sky to a dark tunnel in seconds. Headlights can create strong highlights at night. The windshield adds another optical surface

In machine vision, a lens can produce a sharp image and still be the wrong lens for the job. That may sound counterintuitive. If an inspection camera can clearly see a component, a hole, or an edge, shouldn't the system be able to measure it accurately? Not necessarily. Image sharpness and geometric accuracy are different properties.