Light_Vocabulary

__**Light Vocabulary:**__

**Accent Lighting** Directional lighting to emphasize a particular object or draw attention to a display item. **Atmosphere** This field designates the type of gas or vacuum filling a volume or chamber of the lamp. This chamber might contain a filament or it might refer to the bulb which contains the arc tube. A popular term referring to a light source emitting mostly near UV (320 to 400 nm) and very little visible light. A short, thick post with a light at its top, used for grounds and outdoor walkway lighting. **Color Temperature** A measure of the color appearance of a light source which helps describe the apparent "warmth" (reddish) or "coolness" (bluish) of that light source. Generally, light sources below 3200K are considered "warm;" while those above 4000K are considered "cool" light sources. The color temperature of a lamp has nothing to do with how hot the lamp will get or how much heat is given off by the lamp. The letter, K, stands for Kelvin. A small light fixture recessed into the ceiling that usually concentrates the light in a downward direction. Synonyms: recessed downlight, “can”, recessed can. **Wall Grazing**: A lighting term that refers to the dramatic highlight and shadow effects on surfaces such as draperies, stone, and brick. Grazing creates easily distinguishable high and low levels of light on the surface. A luminaire (light fixture) affixed to the wall and usually decorative in nature.
 * Black Light**
 * Bollard**
 * Downlight**:
 * Wall Sconce**:


 * Wall Washing**: a lighting technique that produces a relatively smooth, even level of illumination on the wall and reduces the texture of the surface.