ATE139831T1 - CEILING LAMP - Google Patents

CEILING LAMP

Info

Publication number
ATE139831T1
ATE139831T1 AT94105495T AT94105495T ATE139831T1 AT E139831 T1 ATE139831 T1 AT E139831T1 AT 94105495 T AT94105495 T AT 94105495T AT 94105495 T AT94105495 T AT 94105495T AT E139831 T1 ATE139831 T1 AT E139831T1
Authority
AT
Austria
Prior art keywords
luminaire
tolerances
ceiling luminaires
light source
main
Prior art date
Application number
AT94105495T
Other languages
German (de)
Inventor
Gottfried Mueller
Robert Zehetgruber
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of ATE139831T1 publication Critical patent/ATE139831T1/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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/02—Fastening of light sources or lamp holders with provision for adjustment, e.g. for focusing
    • 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
    • F21S8/02—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters
    • F21S8/026—Lighting devices intended for fixed installation of recess-mounted type, e.g. downlighters intended to be recessed in a ceiling or like overhead structure, e.g. suspended ceiling
    • 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
    • F21V7/0025—Combination of two or more reflectors for a single light source

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Glass Compositions (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Securing Globes, Refractors, Reflectors Or The Like (AREA)

Abstract

Ceiling luminaires, in particular built-in ceiling luminaires often have to be accessible from below and therefore have a corresponding constructive structure of the luminaire housing. The light source which can be inserted in a main reflector of the luminaire is in this case usually arranged at a socket holder which is mounted on the luminaire housing. In high-quality ceiling luminaires, specific photometric requirements must be met which in particular assume that the focal spot of the light source is arranged at a photometrically specified point with reference to the main-beam axis of the luminaire. In known ceiling luminaires, tolerances in terms of material and production result in this focal spot being repositioned. To compensate for tolerances of luminaire dimensions, the vertex plane of the main reflector (3) of the luminaire is selected as reference plane. The light source (5), together with its socket (10) and the socket holder (9, 11) is constructed as a unit with narrow tolerances, which is supported directly, preferably movable along the main-beam axis, on the main reflector in this reference plane. This solution can be advantageously used in particular in high-quality ceiling luminaires, in which light-shaping elements, such as diffusing screens, filters and the like, and whose thickness dimensions frequently have large tolerances due to production, are arranged in the light exit opening. <IMAGE>
AT94105495T 1993-04-21 1994-04-08 CEILING LAMP ATE139831T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4313051A DE4313051A1 (en) 1993-04-21 1993-04-21 Ceiling light

Publications (1)

Publication Number Publication Date
ATE139831T1 true ATE139831T1 (en) 1996-07-15

Family

ID=6486024

Family Applications (1)

Application Number Title Priority Date Filing Date
AT94105495T ATE139831T1 (en) 1993-04-21 1994-04-08 CEILING LAMP

Country Status (3)

Country Link
EP (1) EP0621438B1 (en)
AT (1) ATE139831T1 (en)
DE (2) DE4313051A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19735726A1 (en) * 1997-08-18 1999-02-25 Acl Lichttechnik Gmbh Flat reflector for built-in ceiling lights

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB513912A (en) * 1938-03-24 1939-10-25 Edward Rambusch Improvements in or relating to illuminating devices
FR2593268B1 (en) * 1986-01-23 1988-02-19 Houplain Georges DEVICE COMPRISING A REMOVABLE SUPPORT FOR CEILED RECESSED LUMINAIRES
DE3817861A1 (en) * 1987-05-27 1989-03-30 Sassmannshausen Knut Socket (holder) for a battery lamp
DE9110365U1 (en) * 1991-08-22 1991-10-31 Siemens AG, 8000 München Adapter for a parabolic reflector and a special socket

Also Published As

Publication number Publication date
EP0621438B1 (en) 1996-06-26
EP0621438A1 (en) 1994-10-26
DE4313051A1 (en) 1994-10-27
DE59400373D1 (en) 1996-08-01

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Legal Events

Date Code Title Description
EEIH Change in the person of patent owner
REN Ceased due to non-payment of the annual fee