EP0577196A1 - IR-Raumheizungsleuchte - Google Patents

IR-Raumheizungsleuchte Download PDF

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Publication number
EP0577196A1
EP0577196A1 EP93201822A EP93201822A EP0577196A1 EP 0577196 A1 EP0577196 A1 EP 0577196A1 EP 93201822 A EP93201822 A EP 93201822A EP 93201822 A EP93201822 A EP 93201822A EP 0577196 A1 EP0577196 A1 EP 0577196A1
Authority
EP
European Patent Office
Prior art keywords
lamp
luminaire
space heating
reflector
screen
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Withdrawn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
EP93201822A
Other languages
English (en)
French (fr)
Inventor
Peter Andreas Walterus Tielemans
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.)
Koninklijke Philips NV
Original Assignee
Koninklijke Philips Electronics NV
Philips Electronics NV
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 Koninklijke Philips Electronics NV, Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Priority to EP93201822A priority Critical patent/EP0577196A1/de
Publication of EP0577196A1 publication Critical patent/EP0577196A1/de
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
    • F24C7/00—Stoves or ranges heated by electric energy
    • F24C7/06—Arrangement or mounting of electric heating elements
    • F24C7/062—Arrangement or mounting of electric heating elements on stoves
    • F24C7/065—Arrangement or mounting of electric heating elements on stoves with reflectors

Definitions

  • the invention relates to an IR space heating luminaire comprising an elongate concave reflector in which a tubular electric incandescent lamp is accommodated and which comprises a reflecting surface facing the lamp and a radiation emission window for the radiation generated by the lamp.
  • Such an IR space heating luminaire is known from DE 1 009 733.
  • a disadvantage of the known luminaire is that it radiates comparatively much light. Even though the electric lamp has a low luminous efficacy, for example 5 lm/W, the luminous flux generated is still too great because an IR lamp usually consumes a power of a few hundred W to a few kW. An IR lamp of 1 kW thus has a luminous flux similar to that of a GLS lamp of 375 W. An unpleasantly high illuminance is achieved during heating of public buildings such as, for example churches, spectator stands, café pavements, or for example stables.
  • the aluminium may have a colour which varies, for example, from jet-black, bluish black, brownish black, greyish black to black, and it may comprise in addition to trace elements some tenths of percents by weight up to a few percents by weight of elements chosen from, for example, Cu, Mg, Zn, Cr, Si, Fe, Mn, Zn, and Ti.
  • the screen may be of various kinds and may, for example, throw the radiation incident thereon, light and IR radiation, towards the reflector.
  • the screen may have a surface facing the lamp which is also made of dark anodized aluminium. This has the advantage that the light incident thereon is mainly absorbed and that of the reflected light only that fraction which is not absorbed by the reflector can leave the luminaire.
  • the screen has a concave surface facing the lamp, for example, such a surface having an axis of curvature coinciding with the lamp.
  • IR radiation reflected by the screen can then follow a path, after reflection by the reflector, which is also followed by IR radiation thrown directly by the lamp onto the reflector.
  • the electric lamp in a favourable embodiment is a halogen IR lamp. Blackening of the lamp vessel by the deposition of tungsten from the incandescent body is avoided in that case. Blackening could give the lamp temperature an undesirable high value. Light of low intensity issues from the luminaire, the reflector has a low brightness, and the light has a comparatively low colour temperature and is similar to candle light.
  • the luminaire is open, not closed in the radiation emission window with, for example, a glass plate.
  • the IR space heating luminaire has an elongate concave reflector 1 in which a tubular electric incandescent lamp 2 is arranged.
  • the reflector has a reflecting surface 3 facing the lamp and an emission window 4 for the radiation generated by the lamp.
  • a screen 5 is present, intercepting unreflected light.
  • the reflecting surface 3 is of dark anodized aluminium.
  • the screen 5 in the Figure also has a surface 6 of dark anodized aluminium facing the lamp.
  • the surface is concave and has an axis of curvature coinciding with the lamp in the Figure.
  • the emission window 4 is open.
  • the incandescent lamp has an incandescent body 7 which is held in a central position in the lamp by supports 8.
  • the reflection spectrum represented by a fully drawn line is that of the reflector and of the screen of Fig. 1, each made of dark anodized aluminium comprising in addition in a few ⁇ m thick surface layer approximately 1% Cr by weight, 1% Ni by weight and 15% S by weight.
  • the transmission spectrum of red quartz glass is indicated with a broken line for comparison.
  • the reflector and the screen have a reflectance in the IR range which is not inferior to the IR transmittance of red quartz glass. It is also apparent that the reflector has a steeper flank at a higher wavelength and is better positioned at the transition from the visible spectrum to the IR spectrum, at 720 nm, than is red quartz glass. As a result, the reflector reflects less red light than is transmitted by red quartz glass. The transmission of red quartz glass below approximately 450 nm is approximately zero, whereas the reflector still reflects approximately 5% then.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electric Stoves And Ranges (AREA)
EP93201822A 1992-07-01 1993-06-24 IR-Raumheizungsleuchte Withdrawn EP0577196A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP93201822A EP0577196A1 (de) 1992-07-01 1993-06-24 IR-Raumheizungsleuchte

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP92201961 1992-07-01
EP92201961 1992-07-01
EP93201822A EP0577196A1 (de) 1992-07-01 1993-06-24 IR-Raumheizungsleuchte

Publications (1)

Publication Number Publication Date
EP0577196A1 true EP0577196A1 (de) 1994-01-05

Family

ID=26131522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93201822A Withdrawn EP0577196A1 (de) 1992-07-01 1993-06-24 IR-Raumheizungsleuchte

Country Status (1)

Country Link
EP (1) EP0577196A1 (de)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0895032A1 (de) * 1997-08-02 1999-02-03 Philips Patentverwaltung GmbH Strahlungsheizgerät
US6188836B1 (en) * 1999-03-22 2001-02-13 Appliance Development Corporation Portable radiant heater with two reflectors
EP1099909A3 (de) * 1994-09-30 2001-09-12 Jones, Philomena Joan Heizgerät
US6304719B1 (en) * 2000-12-18 2001-10-16 Sella Tech Co., Ltd. Radiant heater with halogen lamp
US6453121B2 (en) * 2000-07-10 2002-09-17 Vic Tech Co., Ltd. Radiant heater with subsidiary reflecting plate adjacent halogen lamp
US6526227B2 (en) * 2001-02-27 2003-02-25 Ic Tech Co., Ltd. Radiant electric heater
GB2381308A (en) * 2001-10-23 2003-04-30 J R Glenlomond Ltd An electric patio light and heater apparatus
US6597091B2 (en) 2001-02-16 2003-07-22 Ic Tech Co., Ltd Halogen lamp supporting device
US6716419B2 (en) 2001-06-05 2004-04-06 The Procter & Gamble Company Pseudoplastic, film forming cosmetic compositions
US6738565B2 (en) 2001-06-30 2004-05-18 Ic Tech Co., Ltd. Halogen lamp coupling structure for electric heater
US7003217B2 (en) * 2003-11-19 2006-02-21 Hon Technology Inc. Infrared heating system for patio umbrella
US7061168B2 (en) * 2003-09-05 2006-06-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Infrared reflector and infrared radiator having an infrared reflector

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR761383A (fr) * 1932-12-01 1934-03-17 Appareil de chauffage électrique
DE820732C (de) * 1948-10-02 1951-11-12 Siemens Schuckertwerke A G Elektrisches Heizgeraet mit Reflektor, insbesondere Strahlsonne
US3179789A (en) * 1963-08-26 1965-04-20 Joseph A Gialanella Radiant energy generating and distributing apparatus
EP0416868A1 (de) * 1989-09-08 1991-03-13 W.R. Grace & Co.-Conn. Reflektoraufbau zur Heizung eines Substrates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR761383A (fr) * 1932-12-01 1934-03-17 Appareil de chauffage électrique
DE820732C (de) * 1948-10-02 1951-11-12 Siemens Schuckertwerke A G Elektrisches Heizgeraet mit Reflektor, insbesondere Strahlsonne
US3179789A (en) * 1963-08-26 1965-04-20 Joseph A Gialanella Radiant energy generating and distributing apparatus
EP0416868A1 (de) * 1989-09-08 1991-03-13 W.R. Grace & Co.-Conn. Reflektoraufbau zur Heizung eines Substrates

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1099909A3 (de) * 1994-09-30 2001-09-12 Jones, Philomena Joan Heizgerät
EP0895032A1 (de) * 1997-08-02 1999-02-03 Philips Patentverwaltung GmbH Strahlungsheizgerät
US6188836B1 (en) * 1999-03-22 2001-02-13 Appliance Development Corporation Portable radiant heater with two reflectors
US6453121B2 (en) * 2000-07-10 2002-09-17 Vic Tech Co., Ltd. Radiant heater with subsidiary reflecting plate adjacent halogen lamp
US6304719B1 (en) * 2000-12-18 2001-10-16 Sella Tech Co., Ltd. Radiant heater with halogen lamp
US6597091B2 (en) 2001-02-16 2003-07-22 Ic Tech Co., Ltd Halogen lamp supporting device
US6526227B2 (en) * 2001-02-27 2003-02-25 Ic Tech Co., Ltd. Radiant electric heater
US6716419B2 (en) 2001-06-05 2004-04-06 The Procter & Gamble Company Pseudoplastic, film forming cosmetic compositions
US6738565B2 (en) 2001-06-30 2004-05-18 Ic Tech Co., Ltd. Halogen lamp coupling structure for electric heater
GB2381308A (en) * 2001-10-23 2003-04-30 J R Glenlomond Ltd An electric patio light and heater apparatus
US7061168B2 (en) * 2003-09-05 2006-06-13 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Infrared reflector and infrared radiator having an infrared reflector
CN100381837C (zh) * 2003-09-05 2008-04-16 电灯专利信托有限公司 红外反射器和具有红外反射器的红外辐射器
US7003217B2 (en) * 2003-11-19 2006-02-21 Hon Technology Inc. Infrared heating system for patio umbrella

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