For a long time, the "eye of security" camera has a fatal short board of "night blindness". According to statistics, nearly 70% of crimes occur at night. From 7 p.m. to 5 a.m. the next day is the high incidence period of criminal events. The night imaging quality of the camera has become a short board for the development of security big data.

Starlight camera came into being and became the most popular surveillance camera in the market.

Generally speaking, star level camera usually refers to a camera that can still display clear color images without any auxiliary light source in the low light environment with almost only star light. The so-called stellar illuminance is about 0.01LUX to 0.001lux, while the illuminance on a clear and moonlit night is about 0.1 to 0.01LUX.

In short, the "night vision" of star level camera is mainly optimized through multiple hardware dimensions such as lens, aperture, picture sensor and fill light. The lens and aperture limit the light transmission and light input ability respectively, while the image sensor supports the low illumination ability of the camera through the photosensitive ability and the fill light lamp through the fill light ability.

At present, low illumination cameras such as star level cameras have been widely used in dark or non illuminated scenes such as roads, warehouses, fields, farms, communities and factories, and in scenes requiring high picture definition. For example, in the field of public security, the past cameras can only take black-and-white pictures, but starlight cameras and even higher-level "black light" and "Aurora" cameras can help the police identify "what color clothes the suspect wears" and other problems through the color night vision effect, so as to greatly reduce the difficulty of solving the case.

SECULENS has launched a [Starlight lens F1.4 4mm S307 + Holder], which has stronger photosensitivity, good luminous flux and low noise.