Introduction to light knowledge

Everyone's response to light is different. For the investigation of visible light, the dull level of 100 people is usually used, and the total is uniform. Animal eyes diverge from the sense of light and shade. Insects are * slow to ultraviolet and slow to polarized light.

1. The hue of light flashed

Optical instruments are mostly produced according to human eyes.

Most incandescent lamps are below 2800 degrees, and bromine tungsten lamps are at the mercy of 3200 degrees.

Generally, there are two flash methods. A pair of reflective objects are flashed by X-Y method.

There are cone-shaped cells and rod-shaped cells in human retina. Rod-shaped cells are dull to light and shade, not dull to tone, high mobility and high discrimination rate. In the dark, it is mainly assumed that rod-shaped cells play a role in persuasion. For animals, human eyes are relatively less sensitive at night.

2. Spectrum of domestic light source

The electric light source always adopts color temperature flash.

Ningbo buried manufacturers searched out people's slowness to brilliance, with a wavelength range of about 380 nm to 760 nm.

3. Human eye

Cone cells are slow to tone, low mobility and low discrimination rate. Human eyes can feel various colors according to the ratio of red, green and blue.