FR2404165A1 - Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges - Google Patents

Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges

Info

Publication number
FR2404165A1
FR2404165A1 FR7728918A FR7728918A FR2404165A1 FR 2404165 A1 FR2404165 A1 FR 2404165A1 FR 7728918 A FR7728918 A FR 7728918A FR 7728918 A FR7728918 A FR 7728918A FR 2404165 A1 FR2404165 A1 FR 2404165A1
Authority
FR
France
Prior art keywords
screen
fluorescent tube
outer edges
reflect light
bars
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
FR7728918A
Other languages
French (fr)
Other versions
FR2404165B1 (en
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.)
DONSKOFF ANDRE
Original Assignee
DONSKOFF ANDRE
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 DONSKOFF ANDRE filed Critical DONSKOFF ANDRE
Priority to FR7728918A priority Critical patent/FR2404165A1/en
Publication of FR2404165A1 publication Critical patent/FR2404165A1/en
Application granted granted Critical
Publication of FR2404165B1 publication Critical patent/FR2404165B1/fr
Granted legal-status Critical Current

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
    • F21V11/00—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00
    • F21V11/02—Screens not covered by groups F21V1/00, F21V3/00, F21V7/00 or F21V9/00 using parallel laminae or strips, e.g. of Venetian-blind type
    • 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
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/08—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters for producing coloured light, e.g. monochromatic; for reducing intensity of light
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Vessels And Coating Films For Discharge Lamps (AREA)

Abstract

The glare from a fluorescent tube is reduced by installing it in a box with a translucent cover (1) and with a screen placed between the tube (2) and cover (1). This screen is in the form of a grid with longitudinal bars. The bars (7) in the central region are in the shape of an inverted V with unequal arms, whilst the bars in the outer regions are flat and oblique to the screen surface. The light from the tube (2) thus passes straight through the central region but is reflected from the outer regions to produce uniform illumination.
FR7728918A 1977-09-26 1977-09-26 Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges Granted FR2404165A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7728918A FR2404165A1 (en) 1977-09-26 1977-09-26 Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7728918A FR2404165A1 (en) 1977-09-26 1977-09-26 Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges

Publications (2)

Publication Number Publication Date
FR2404165A1 true FR2404165A1 (en) 1979-04-20
FR2404165B1 FR2404165B1 (en) 1981-10-02

Family

ID=9195776

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7728918A Granted FR2404165A1 (en) 1977-09-26 1977-09-26 Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges

Country Status (1)

Country Link
FR (1) FR2404165A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335421A (en) * 1980-03-17 1982-06-15 Modia Joseph W Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area
US4622624A (en) * 1983-06-10 1986-11-11 Electri-Cable Assemblies, Inc. Under shelf task lighting fixture
EP0564022A1 (en) * 1992-03-30 1993-10-06 van Putten, Simon Cornelis A lighting fixture
FR2742213A1 (en) * 1995-12-08 1997-06-13 Hode Jean Pierre Ceiling mounted light fitting for fluorescent lamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4335421A (en) * 1980-03-17 1982-06-15 Modia Joseph W Light fixture, light aperture and method of uniformly illuminating an optically diffusive viewing area
US4622624A (en) * 1983-06-10 1986-11-11 Electri-Cable Assemblies, Inc. Under shelf task lighting fixture
EP0564022A1 (en) * 1992-03-30 1993-10-06 van Putten, Simon Cornelis A lighting fixture
FR2742213A1 (en) * 1995-12-08 1997-06-13 Hode Jean Pierre Ceiling mounted light fitting for fluorescent lamp

Also Published As

Publication number Publication date
FR2404165B1 (en) 1981-10-02

Similar Documents

Publication Publication Date Title
JPS559309A (en) Light illuminating bulb
IT1155894B (en) LIGHTING SYSTEM WITH ORIENTED LIGHT SOURCE INCLUDING A DEFLECTOR MODIFYING THE LIGHT PATH TO AVOID THE SAILING REFLECTIONS
JPS52135581A (en) Metal halide discharge lamp with incandescent light characteristic output
NL7701740A (en) HIGH PRESSURE DISCHARGE LIGHT SOURCE WITH METAL HALOGENIDE ADDITION.
NL7904077A (en) LAMP WITH ADJUSTABLE LIGHT OUTPUT.
JPS54127299A (en) Lighting structure of photo detection type display unit
FR2404165A1 (en) Screen for reducing glare from fluorescent tube - has oblique bars to reflect light impinging on outer edges
NL7809913A (en) DISCHARGE LAMP WITH HIGH INTENSITY DISCHARGE.
NL7713419A (en) DISCHARGE LAMP WITH HIGH INTENSITY.
JPS5536785A (en) Scattered light type smoke sensor
NL7809914A (en) DISCHARGE LAMP WITH HIGH DISCHARGE INTENSITY.
JPS5631270A (en) Transmission original illuminating unit
JPS52100775A (en) Fluorescent lamp
JPS5678853A (en) Illumination device
JPS55125765A (en) Read-in unit
JPS5374379A (en) Correction filter for illuminance distribution
NL189529C (en) LIGHTING LUMINAIRE WITH GRILL.
JPS5445124A (en) Lighting unit for copier
JPS5440023A (en) Facsimile device
ES8604686A1 (en) Improvements in the manufacture of luminous effect producing devices. (Machine-translation by Google Translate, not legally binding)
JPS5450168A (en) Illuminating light source
JPS52112837A (en) High frequency wave heater
JPS53137577A (en) High frequency lighting device
JPS5445984A (en) Lighting apparatus for vehicles
JPS5389424A (en) Control method for light amount of lens

Legal Events

Date Code Title Description
ST Notification of lapse