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Troland (Td)

Troland (Td) is a measure of the light stimulation entering the eye, taking into account both the luminance of the light source...

Threshold Increment (TI)

Threshold Increment (TI) is a measure of the eye's sensitivity under different lighting conditions, particularly in situations with scattered light or slight...

Mesopic vision

Mesopic vision is the transitional mode between photopic (daylight) and scotopic (night) vision. It occurs in dim light or other situations with...

Photopic vision

Photopic vision refers to seeing in bright light , when the cones in the retina are active. This is normal daytime vision...

Scotopic vision

Scotopic vision refers to the human eye's ability to see in very low light, such as near-total darkness. This is primarily due...

Scrim

A scrim is a thin, translucent fabric often used in theater, film, and photography. The material can create various effects depending on...

will-o'-the-wisp

A will-o'-the -wisp (also called a will-o'-the-wisp or fairy light ) is a phenomenon where a faint, flickering light is visible in...

Searchlight

There are several types of searchlights used for various applications, from industrial lighting to military and emergency situations . Searchlights are characterized...

Tyndall effect

The Tyndall effect is the phenomenon whereby light is scattered by small particles in a colloidal solution or suspension . This effect...

Mie scattering

Mie scattering is a type of light scattering that occurs when light interacts with particles approximately equal to or larger than the...

Rayleigh scattering

Rayleigh scattering is a physical phenomenon in which light (or other electromagnetic radiation) is scattered by particles much smaller than the wavelength...

Quartz lamp

A quartz lamp is a type of lamp that uses quartz as the material for the lamp tube or housing. Quartz lamps...

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