EP0386795A3 - Lightstand - Google Patents

Lightstand Download PDF

Info

Publication number
EP0386795A3
EP0386795A3 EP19900104576 EP90104576A EP0386795A3 EP 0386795 A3 EP0386795 A3 EP 0386795A3 EP 19900104576 EP19900104576 EP 19900104576 EP 90104576 A EP90104576 A EP 90104576A EP 0386795 A3 EP0386795 A3 EP 0386795A3
Authority
EP
European Patent Office
Prior art keywords
proposed
light
disposed
exit aperture
lightstand
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.)
Granted
Application number
EP19900104576
Other languages
German (de)
French (fr)
Other versions
EP0386795A2 (en
EP0386795B1 (en
Inventor
Gerhard Dipl.-Phys. Karl
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.)
Karl Gerhard Dipl-Phys
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP0386795A2 publication Critical patent/EP0386795A2/en
Publication of EP0386795A3 publication Critical patent/EP0386795A3/en
Application granted granted Critical
Publication of EP0386795B1 publication Critical patent/EP0386795B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G09F13/0409—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
    • G09F13/14—Arrangements of reflectors therein
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • 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
    • G09F2013/05—Constructional details indicating exit way or orientation

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Liquid Crystal Substances (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)

Abstract

A lightstand is proposed which comprises a hollow body (1), on the floor (2) and side faces (3) of which a reflecting layer is applied on the inside and in which a fluorescent tube is disposed as a light source (4) and the light exit aperture is provided with a diffusing surface (5). It is proposed that a partially transparent, partially reflective layer (6) be disposed in the light propagation direction in front of the diffusing surface (5), the transparency of which increases proportionally with the increase in the distance from the light source (4) to provide even illumination of the light exit aperture. <IMAGE>
EP90104576A 1989-03-10 1990-03-10 Lightstand Expired - Lifetime EP0386795B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3907805A DE3907805A1 (en) 1989-03-10 1989-03-10 LIGHTING DESK
DE3907805 1989-03-10

Publications (3)

Publication Number Publication Date
EP0386795A2 EP0386795A2 (en) 1990-09-12
EP0386795A3 true EP0386795A3 (en) 1991-09-11
EP0386795B1 EP0386795B1 (en) 1994-07-06

Family

ID=6376027

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90104576A Expired - Lifetime EP0386795B1 (en) 1989-03-10 1990-03-10 Lightstand

Country Status (3)

Country Link
EP (1) EP0386795B1 (en)
AT (1) ATE108280T1 (en)
DE (2) DE3907805A1 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4008055C1 (en) * 1990-03-14 1990-12-20 Metallbauwerk Tegtmeier Gmbh & Co Kg, 4972 Loehne, De
JPH0695051B2 (en) * 1990-04-09 1994-11-24 旭光学工業株式会社 Light incident device of auto white balance sensor
JPH0782302B2 (en) * 1990-11-14 1995-09-06 株式会社竹中工務店 Display lighting equipment
FR2678758B1 (en) * 1991-07-02 1993-10-22 Aupem SIDE LIGHTING LIGHT BOX AND DIFFUSING FILM.
DE9204063U1 (en) * 1992-03-26 1993-04-15 Buechner, Thomas, 8901 Deubach Backlight
US6080467A (en) 1995-06-26 2000-06-27 3M Innovative Properties Company High efficiency optical devices
DE29513401U1 (en) * 1995-08-21 1996-12-19 Bachleitner, Wolfgang, 78655 Dunningen Display system
DE29515286U1 (en) * 1995-09-23 1995-11-30 Daum GmbH, 19061 Schwerin X-ray viewer
DE19910273C2 (en) * 1999-03-08 2002-12-19 Poellet Wilfried lighting arrangement
EP1337786A2 (en) * 2000-11-29 2003-08-27 Zumtobel Staff GmbH Light with a transparent panel
DE102008017118B4 (en) * 2008-04-02 2014-05-15 Binder Gmbh lighting arrangement
DE102010051307B4 (en) * 2010-11-12 2021-08-12 Kostal Automobil Elektrik Gmbh & Co. Kg Display element
DE102019006275A1 (en) * 2019-09-05 2021-03-11 Daimler Ag Device for irradiating a surface

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221018A1 (en) * 1985-10-10 1987-05-06 Reto Held Illuminated advertizing and display device
EP0225542A1 (en) * 1985-12-05 1987-06-16 Hinrichs Fotowerbung GmbH Light box for diapositive slides

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1666964U (en) * 1951-07-21 1953-11-19 Siemens Ag GRID GLASS FOR LUMINAIRES, IN PARTICULAR WITH TUBE-SHAPED LAMPS.
DE953666C (en) * 1953-06-04 1956-12-06 Alfred Vogelsaenger Device for reproducing images in transmitted light
DE1940110U (en) * 1966-03-29 1966-06-08 Gerhardi & Cie COVER, ESPECIALLY FOR LIGHTS.
DE6602718U (en) * 1969-02-19 1969-06-19 Rex Messinstrumentebau Gmbh Fa LIGHT PLATE
DE2511030A1 (en) * 1974-03-14 1975-12-18 Sikob Ab Illuminating system for large flat panels - has parallel retracting grooves with unequal spacing ensuring uniform illumination
DE7706217U1 (en) * 1977-03-01 1977-06-16 Hoeber Geb. Ladwig, Henriette, 5420 Lahnstein DEVICE FOR DRAWING, RETOUCHING AND COPYING WORK
US4267489A (en) * 1978-12-01 1981-05-12 Ohno Research And Development Laboratories Company Limited Thin schaukasten
US4388675A (en) * 1980-12-15 1983-06-14 Ian Lewin Indirect lighting fixture
JPS58127910A (en) * 1982-01-26 1983-07-30 Suraidetsukusu Kk Seeing-through device on desk
DE3223706A1 (en) * 1982-06-25 1983-12-29 Jobo Labortech Luminous element for images which can be transilluminated, such as film viewers
US4564886A (en) * 1982-10-07 1986-01-14 Stacor Corporation Portable light box
DK152317C (en) * 1984-08-07 1988-07-11 Vinther Plastik Aps Franz view box
DE3639687A1 (en) * 1986-11-20 1988-06-01 Henkel Kgaa ILLUMINATED SHELVING INSERT

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0221018A1 (en) * 1985-10-10 1987-05-06 Reto Held Illuminated advertizing and display device
EP0225542A1 (en) * 1985-12-05 1987-06-16 Hinrichs Fotowerbung GmbH Light box for diapositive slides

Also Published As

Publication number Publication date
ATE108280T1 (en) 1994-07-15
EP0386795A2 (en) 1990-09-12
DE3907805A1 (en) 1990-09-13
DE59006331D1 (en) 1994-08-11
EP0386795B1 (en) 1994-07-06

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