Light fixture with beam shaping lens

United States of America Patent

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Aug 20, 1991
Grant Date
N/A
app pub date
Oct 30, 1989
filing date
Oct 30, 1989

priority date (Note)
Expired

status (Latency Note)

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Abstract

A light extraction film has light extraction structures on one surface and a Fresnel lens for beam shaping on the opposite surface.

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Patent Owner(s)

Patent Owner	Address
MINNESOTA MINING AND MANUFACTURING COMPANY	P O BOX 33427 ST PAUL MN 55133-3427

International Classification(s)

G02B:OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS

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[Patents Count]

Inventor(s)

Inventor Name	Address	# of filed Patents	Total Citations
Cobb, Jr Sanford	St. Mary's Point, MN	43	3830

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Light fixture with beam shaping lens

Number of patents in Portfolio can not be more than 2000

United States of America Patent

07429163

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Patent Longevity Expired	Forward Citations

PATENT NO	5040883
SERIAL NO	07429163
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07429163

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