HK6797A - Reflective film - Google Patents

Reflective film

Info

Publication number
HK6797A
HK6797A HK6797A HK6797A HK6797A HK 6797 A HK6797 A HK 6797A HK 6797 A HK6797 A HK 6797A HK 6797 A HK6797 A HK 6797A HK 6797 A HK6797 A HK 6797A
Authority
HK
Hong Kong
Prior art keywords
light
film
prisms
light reflecting
prism
Prior art date
Application number
HK6797A
Other languages
English (en)
French (fr)
Inventor
Kenneth A. Aho
Original Assignee
Minnesota Mining And Manufacturing Company
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=21852182&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK6797(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining And Manufacturing Company filed Critical Minnesota Mining And Manufacturing Company
Publication of HK6797A publication Critical patent/HK6797A/en

Links

Classifications

    • 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
    • F21V7/04—Optical design
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/30—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S43/00—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights
    • F21S43/40—Signalling devices specially adapted for vehicle exteriors, e.g. brake lamps, direction indicator lights or reversing lights characterised by the combination of 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
    • F21V5/00—Refractors for light sources
    • F21V5/02—Refractors for light sources of prismatic shape
    • 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
    • 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
    • F21V7/0091—Reflectors for light sources using total internal reflection
    • 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
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Claims (10)

  1. Lichtreflektierende Folie (10; 30), die aus einem durchsichtigen Werkstoff besteht und eine erste und eine zweite Breitseitenfläche (11, 12) besitzt, wobei die genannte erste Breitseitenfläche (11) eine strukturierte Fläche mit einer Mehrzahl von Dreikantprismen (13, 17) ist, von denen jedes eine erste (14) und eine zweite (15) Fläche besitzt und die eine Mehrzahl von Scheiteln und Rinnen bilden, die genannte zweite Breitseitenfläche (12) glatt ist, und die Folie im Bereich der genannten zweiten Breitseitenfläche (12) eine lichtreflektierende Einrichtung (21) bewirkt, dadurch gekennzeichnet, daß Licht (20), das in eines der Prismen (13) durch dessen erste Fläche (14) unter einem Winkel gegenüber der genannten zweiten Breitseitenfläche (12) eintritt, der kleiner ist als ein vorherbestimmter Winkel, an der zweiten Fläche (15) des Prismas eine innere Totalreflexion erfährt und von der lichtemittierenden Einrichtung (21) reflektiert wird und durch ein anderes der genannten Prismen (17) aus der Folie (10; 30) austritt.
  2. Lichtreflektierende Folie nach Anspruch 1, in der die lichtreflektierende Einrichtung (21) aus auf der zweiten Breitseitenfläche (12) abgeschiedenem Metall besteht.
  3. Lichtreflektierende Folie nach Anspruch 1 oder 2, in der die genannten Prismen (13, 17) gleichschenklige rechtwinklige Prismen sind, deren zueinander rechtwinklige Flächen (14, 15) unter einem Winkel von 45° zu der zweiten Breitseitenfläche (12) angeordnet sind.
  4. Lichtreflektierende Folie nach einem der vorhergehenden Ansprüche, in der der durchsichtige Werkstoff ein polymerer Werkstoff ist.
  5. Lichtreflektierende Folie nach einem der vorhergehenden Ansprüche, in der die genannten Prismen gerade und zueinander parallel sind.
  6. Lichtreflektierende Folie nach einem der Ansprüche 1 bis 4, in der die genannten Prismen kreisförmig und konzentrisch sind.
  7. Leuchte mit    einer lichtreflektierenden Folie (30) nach einem der Ansprüche 1 bis 6 und    einer an einem ersten Ende der genannten Folie (30) vorgesehenen lichtemittierenden Einrichtung zum Beleuchten der Folie, wobei die lichtemittierende Einrichtung (32) so angeordnet ist, daß sich Lichtstrahlen der Folie (30) in einer zu der zweiten Breitseitenfläche (34) der Folie (30) fast parallelen Richtung nähern.
  8. Leuchte nach Anspruch 7, in der die lichtemittierende Einrichtung (32) so angeordnet ist, daß sich Lichtstrahlen der Folie in einer Richtung nähern, die mit der zweiten Breitseitenfläche einen Winkel von nicht mehr als 20° einschließt.
  9. Leuchte nach Anspruch 7 oder 8, in der die lichtemittierende Einrichtung (32) so angeordnet ist, daß sich Lichtstrahlen der Folie in einer zu den Achsen der Prismen rechtwinkligen Richtung nähern.
  10. Leuchte nach einem der Ansprüche 7 bis 9 mit einer an einem zweiten Ende der Folie (30) vorgesehenen zweiten lichtreflektierenden Einrichtung (33) zum Reflektieren von von der genannten lichtemittierenden Einrichtung (32) emittiertem Licht zu der Folie hin, wenn Licht an der Folie vorbeigegangen ist, ohne auf sie aufzutreffen.
HK6797A 1987-03-24 1997-01-16 Reflective film HK6797A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/030,033 US4799137A (en) 1987-03-24 1987-03-24 Reflective film
PCT/US1988/000802 WO1988007647A1 (en) 1987-03-24 1988-03-11 Reflective film

Publications (1)

Publication Number Publication Date
HK6797A true HK6797A (en) 1997-01-24

Family

ID=21852182

Family Applications (1)

Application Number Title Priority Date Filing Date
HK6797A HK6797A (en) 1987-03-24 1997-01-16 Reflective film

Country Status (11)

Country Link
US (1) US4799137A (de)
EP (1) EP0357629B1 (de)
JP (1) JP2683399B2 (de)
KR (1) KR0125493B1 (de)
AU (1) AU596520B2 (de)
CA (1) CA1307149C (de)
DE (1) DE3851836T2 (de)
HK (1) HK6797A (de)
MX (1) MX168074B (de)
MY (1) MY103238A (de)
WO (1) WO1988007647A1 (de)

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Also Published As

Publication number Publication date
US4799137A (en) 1989-01-17
DE3851836T2 (de) 1995-04-27
DE3851836D1 (de) 1994-11-17
MY103238A (en) 1993-05-29
EP0357629B1 (de) 1994-10-12
MX168074B (es) 1993-05-03
CA1307149C (en) 1992-09-08
KR890700786A (ko) 1989-04-27
EP0357629A1 (de) 1990-03-14
AU1547688A (en) 1988-11-02
KR0125493B1 (ko) 1997-12-26
JPH02503250A (ja) 1990-10-04
WO1988007647A1 (en) 1988-10-06
EP0357629A4 (de) 1990-05-14
AU596520B2 (en) 1990-05-03
JP2683399B2 (ja) 1997-11-26

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