Uv lamp
AssigneeKoninklijke Philips Electronics N.V.
InventorsRalph Kurt, Elvira Johanna Maria Paulussen, Bastiaan Uitbeijerse, Marco Van As, Rene Theodorus Wegh
Life of this patent
Estimating the term…
Abstract
The invention relates to an UV lamp (100) that may for example be used as a torch for crime inspection. The UV lamp (100) comprises a light source (50), e.g. an UV LED, and a reflector (30) which are designed such that a light spot comprising an inner region of a given minimal diameter D at an axial distance of about 8-D is produced which has an intensity variation of less than about 20%. The reflector (30) may preferably be a Compound Parabolic Concentrator (CPC) with a high aspect ratio. Moreover, the UV lamp (100) may comprise a luminescent indicator for making activity of the UV lamp visible to a user.
Claims15
An UV lamp (100, 200), comprising:
- a) a reflector (30) with an optical axis (z), an entrance window (31) and a larger exit window (33);
- b) a light source (50) that is disposed at the entrance window of the reflector for emitting UV light into the reflector;
- wherein the light source can produce during operation a light spot comprising an inner region of a given minimal diameter D at an axial distance of about 8·D from the lamp that has an intensity variation of less than about 20%.
Dependencies are inferred from the claim text.