In embodiments, the controller may be configured to control the non-ocular light to counteract an effect on the user of the ambient light, or to enhance an effect of the ambient light.

Effect of Light and Other Environmental Disruptions

Infrared light is preferred for this, and the amount of the reflected light is detected to provide an objective indication of the size of the area that is applanated.

The effects of light and colors on brain performance:

Nothing, however, is more variable than this character.

At the same time lighting effect is good, light source concentration, uniform light, glare small.

The temperature of the substrate heated by light application can be measured accurately without influence of the heating light, without contamination of the substrate regardless of the film thickness construction of the substrate.

A rotating beacon indeed projects light from the top of the tower.

Houses of Parliament, Sunlight through the fog Claude Monet

This love, manifested in the Light’s effect on us, triggers in us an instinctive effect on the Light in return.

light's impact on color and controlling color balance