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Color rendering index
Videos
A color rendering index is a quantitative measure of the ability of a light source to reveal the colors of various objects faithfully in comparison with a natural or standard light source.
Emitted light spectrum determines the CRI of the lamp. An incandescent lamp (middle image) has a continuous spectrum and therefore a higher CRI than a fluorescent lamp (lower image). The top image shows the setup of the demonstration from above.
Emitted light spectrum determines the CRI of the lamp. An incandescent lamp (middle image) has a continuous spectrum and therefore a higher CRI than a
Ceramic metal-halide lamp
Videos
A ceramic metal-halide lamp, also generically known as a ceramic discharge metal-halide lamp, is a type of metal-halide lamp that is 10–20% more efficient than the traditional quartz metal halide and
Color rendering index
…82 Standard LED Lamp 2700–5000 83 Quartz metal halide 4200 85 Tri-phosphor cool-white fluorescent 4080 89 High-CRI LED lamp (blue LED) 2700–5000 95 Ceramic discharge metal-halide lamp 5400 96 Ultra-high-CRI LED lamp (violet LED) 2700–5000 99 Incandescent/halogen bulb 3200 100 A reference source, such as black-body radiation, is defined…
Streetlamp with a ceramic metal halide bulb
Streetlamp with a ceramic metal halide bulb
Ceramic metal halide bulb with G12 socket
Ceramic metal halide bulb with G12 socket