Vonnic Standalone DVR Manual de usuario descargar pdf (Pagina 4)

-4-

Camera Specifications continued

Lux is the SI unit of luminous emittance used in photometry as a measure of the apparent

intensity of light hitting or passing through a surface. IR cameras have a 0 lux rating as they

illuminate in total darkness. Some cameras are known as Day/Night and have very low lux

ratings indicating it needs only a small amount of light to capture images in darkness. The

chart below is an example of how much light is produced from certain sources measured in

lux. If a camera has a lux rating of 0.1 and gets light equivalent to that of a full moon, it will

be able to produce an image.

Infrared technology (IR) refers to the cameras ability to capture images in total darkness.

Cameras featuring IR product color images during daylight and switch to black and white at

night. When choosing this feature, you will want an accurate measure of the distance you

need illuminated at night. Some cameras are equipped with more IR lights than others and

therefore are capable of producing longer range images at night.

Daytime 200 lux Day/Night 0.1 lux Infrared 0 lux

Full Sunlight 50,000 lux Streetlight 5 lux

Overcast Sky 5,000 lux Security Lighting 2 lux

Office Lighting 500 lux

Clear Full Moon 0.1 lux

Hallway / Emergency

Lighting

50 lux

Moonlit Cloudy Night 0.01 lux

Sunset 10 lux

Moonless Starry

Night

0.001 lux

Lux Light Level Chart

1 2 3 4 5 6 7 8 9 10

Sin comentarios

Vonnic Standalone DVR Manual de usuario Pagina 4