Fresnel lens spotlight
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United States of America Patent
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Issued Date -
Jul 28, 2005
app pub date -
Dec 21, 2004
filing date -
Dec 22, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
In order to produce a Fresnel lens spotlight whose emitted light beam has an adjustable aperture angle, having a preferably ellipsoid reflector, a lamp and at least one Fresnel lens, which has a more compact form and is thus not only more space-saving but is also lighter than the conventional Fresnel lens spotlight, a lens with a negative focal length and a virtual focal point is used as the Fresnel lens.
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