Fluorescent Lamp for Inspecting Color Printed Matters
AssigneeKoninklijke Philips Electronics N.V.
InventorJan Pieter Dekker
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Abstract
The invention relates to a fluorescent lamp (1) comprising a glass envelope (3) coated with one or more phosphor containing layers (4) and filled with a gas (7), said fluorescent lamp further comprising means (6) capable of discharging said gas. The composition of said phosphor containing layer is tailored to obtain a special color rendering index higher than 93 for at least printing primary colors cyan, magenta and yellow. The lamp is particularly suitable for inspection of color-printed matters in the graphical industry.
Claims10
1-4. (canceled)
A fluorescent lamp (1) comprising a glass envelope (3) coated with one or more phosphor containing layers (4) and filled with a gas (7), said fluorescent lamp further comprising means (6) capable of discharging said gas, wherein the composition of said phosphor containing layer is tailored to obtain a special color rendering index higher than 93 for at least printing primary colors cyan, magenta and yellow.
Dependencies are inferred from the claim text.