GB1142888A - Improvements in reflectors - Google Patents

Improvements in reflectors

Info

Publication number
GB1142888A
GB1142888A GB38461/66A GB3846166A GB1142888A GB 1142888 A GB1142888 A GB 1142888A GB 38461/66 A GB38461/66 A GB 38461/66A GB 3846166 A GB3846166 A GB 3846166A GB 1142888 A GB1142888 A GB 1142888A
Authority
GB
United Kingdom
Prior art keywords
source
colour temperature
radiation
lamp
reflector
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.)
Expired
Application number
GB38461/66A
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.)
Individual
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 GB1142888A publication Critical patent/GB1142888A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/208—Filters for use with infrared or ultraviolet radiation, e.g. for separating visible light from infrared and/or ultraviolet radiation

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

1,142,888. Lamp reflectors. G. D. COOPER. 26 Aug., 1966 [28 Sept., 1965], No. 38461/66. Heading F4R. [Also in Division G2] A lamp includes a reflector comprising a transparent substrate carrying a plurality of layers of selectively reflecting material which transmits all of the invisible radiation and part of the visible radiation of the source of radiant energy, such that the light column formed from the combined reflected visible radiation and the radiation directly emitted from the source has a predetermined colour temperature which is different from that of the source. As shown in Fig. 1, the reflector 12 is made up from two parabolic sections 12a and 13b consisting of a substrate 14 and a vacuum deposited coating 15 of the selectively reflecting layers, which may alternatively be on the back of the substrate. The source 13 may be a quartz iodine lamp having a colour temperature of 2950‹ K, and the light column 17 may have a colour temperature of 3200-3800‹ K.
GB38461/66A 1965-09-28 1966-08-26 Improvements in reflectors Expired GB1142888A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US49096365A 1965-09-28 1965-09-28

Publications (1)

Publication Number Publication Date
GB1142888A true GB1142888A (en) 1969-02-12

Family

ID=23950244

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38461/66A Expired GB1142888A (en) 1965-09-28 1966-08-26 Improvements in reflectors

Country Status (5)

Country Link
BE (1) BE687495A (en)
CH (1) CH454771A (en)
DE (1) DE1497286A1 (en)
GB (1) GB1142888A (en)
NO (1) NO122412B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229264A (en) * 1989-03-16 1990-09-19 Toshiba Lighting & Technology Lighting fixture
DE3909246A1 (en) * 1989-03-21 1990-09-27 Leybold Ag HEATING DEVICE FOR COOKING FOOD, ESPECIALLY HOT PLATE
DE4022865A1 (en) * 1989-07-19 1991-01-31 Koito Mfg Co Ltd VEHICLE HEADLIGHTS

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2604921C3 (en) * 1976-02-09 1984-03-08 W.C. Heraeus Gmbh, 6450 Hanau Lighting devices for medical or dental purposes

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2229264A (en) * 1989-03-16 1990-09-19 Toshiba Lighting & Technology Lighting fixture
DE3909246A1 (en) * 1989-03-21 1990-09-27 Leybold Ag HEATING DEVICE FOR COOKING FOOD, ESPECIALLY HOT PLATE
DE4022865A1 (en) * 1989-07-19 1991-01-31 Koito Mfg Co Ltd VEHICLE HEADLIGHTS

Also Published As

Publication number Publication date
CH454771A (en) 1968-04-30
DE1497286A1 (en) 1969-07-17
NO122412B (en) 1971-06-28
BE687495A (en) 1967-03-01

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