EP0814453A3 - Illumination apparatus - Google Patents

Illumination apparatus Download PDF

Info

Publication number
EP0814453A3
EP0814453A3 EP97201731A EP97201731A EP0814453A3 EP 0814453 A3 EP0814453 A3 EP 0814453A3 EP 97201731 A EP97201731 A EP 97201731A EP 97201731 A EP97201731 A EP 97201731A EP 0814453 A3 EP0814453 A3 EP 0814453A3
Authority
EP
European Patent Office
Prior art keywords
light
light source
housing
rearward direction
lens surfaces
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP97201731A
Other languages
German (de)
French (fr)
Other versions
EP0814453A2 (en
Inventor
Roy Yuille Eastman Kodak Company Taylor
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eastman Kodak Co
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Publication of EP0814453A2 publication Critical patent/EP0814453A2/en
Publication of EP0814453A3 publication Critical patent/EP0814453A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/04—Combinations of only two kinds of elements the elements being reflectors and refractors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/12—Combinations of only three kinds of elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0409—Arrangements for homogeneous illumination of the display surface, e.g. using a layer having a non-uniform transparency
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0418—Constructional details
    • G09F13/0422—Reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/14—Arrangements of reflectors therein
    • G09F2013/145—Arrangements of reflectors therein curved reflectors

Abstract

A light apparatus having:
  • a) a housing having a back side and a front light opening through which light can pass;
  • b) at least one light source within the housing emitting light in a forward and a rearward direction;
  • c) a lenticular lens sheet positioned behind the light source in the housing, the sheet having a plurality of parallel elongated, laterally convex, lens surfaces extending in a path to form a pattern geometrically following the contour of the light source, and facing the linear light source; and
  • d) a reflecting surface behind the lens surfaces to redirect light emitted from the light source in the rearward direction to the forward direction.
    • Figure 00000001
    EP97201731A 1996-06-18 1997-06-07 Illumination apparatus Withdrawn EP0814453A3 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    US66575496A 1996-06-18 1996-06-18
    US665754 1996-06-18

    Publications (2)

    Publication Number Publication Date
    EP0814453A2 EP0814453A2 (en) 1997-12-29
    EP0814453A3 true EP0814453A3 (en) 1999-07-28

    Family

    ID=24671450

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP97201731A Withdrawn EP0814453A3 (en) 1996-06-18 1997-06-07 Illumination apparatus

    Country Status (2)

    Country Link
    EP (1) EP0814453A3 (en)
    JP (1) JPH1082973A (en)

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN110070806A (en) * 2019-03-31 2019-07-30 方迪勇 A kind of constructive method of modularization large lamp box

    Families Citing this family (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    JP4563294B2 (en) * 2005-10-07 2010-10-13 株式会社クラレ Light control member provided in illumination device and image display device using the same
    JP4522938B2 (en) * 2005-10-07 2010-08-11 株式会社クラレ Light control member provided in illumination device and image display device using the same
    WO2012159545A1 (en) * 2011-05-23 2012-11-29 北京莱易龙光电科技有限公司 Led light box
    US9082326B2 (en) 2013-05-02 2015-07-14 3M Innovative Properties Company Self illuminated shaped and two-sided signage for printed graphics
    EP3770681A4 (en) * 2018-03-20 2021-03-24 Sony Corporation Image display device

    Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5134553A (en) * 1990-10-17 1992-07-28 Toshiaki Nakagawa Illuminating device
    US5282117A (en) * 1990-08-24 1994-01-25 Fritts Robert W Light leveling means for fluorescent backlit displays or the like
    US5365411A (en) * 1993-01-06 1994-11-15 Kaufel Group Ltd. Exit signs with LED illumination
    GB2310525A (en) * 1996-02-24 1997-08-27 Ronnie Revell Illuminated display device

    Patent Citations (4)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5282117A (en) * 1990-08-24 1994-01-25 Fritts Robert W Light leveling means for fluorescent backlit displays or the like
    US5134553A (en) * 1990-10-17 1992-07-28 Toshiaki Nakagawa Illuminating device
    US5365411A (en) * 1993-01-06 1994-11-15 Kaufel Group Ltd. Exit signs with LED illumination
    GB2310525A (en) * 1996-02-24 1997-08-27 Ronnie Revell Illuminated display device

    Cited By (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN110070806A (en) * 2019-03-31 2019-07-30 方迪勇 A kind of constructive method of modularization large lamp box

    Also Published As

    Publication number Publication date
    EP0814453A2 (en) 1997-12-29
    JPH1082973A (en) 1998-03-31

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