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Back lighting - Coves

Dear Reader, In this blog we talk about the placement/positioning of the of the light source. Its important to conduct a mock up. Mock up...
Glossary - S

S scoop a floodlight consisting of a lamp in an ellipsoidal or paraboloidal matte reflector, usually in a fixed relationship, thou...
Glossary - R

R radiant energy , Q energy traveling in the form of electromagnetic waves. It is measured in units of energy such as joules or kil...
Glossary - A

A absolute luminance threshold luminance threshold for a bright object like a disk on a totally dark background. absorption ...
Glossary - G

G gas-filled lamp an incandescent lamp in which the filament operates in a bulb filled with one or more inert gases. gaseous ...
Glossary - P

P panel (open) face exit sign† a transilluminated sign where both the exit legend and background are translucent. parking lam...
Glossary - O

O object color † the color of the light reflected or transmitted by an object when illuminated by a standard light source, such as ...
Glossary - F

F fenestra method a procedure for predicting the interior illuminance received from daylight through windows. fenestration a...
Glossary - B

B back light illumination from behind (and usually above) a subject to produce a highlight along its edge and consequent separation b...
Glossary - D

D dark adaptation the process by which the retina becomes adapted to a luminance less than about 0.034 cd/m2 = 2.2 × 10−5 cd/in.2 ...

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