GB1517331A – Lamps for use in fog
– Google Patents
GB1517331A – Lamps for use in fog
– Google Patents
Lamps for use in fog
Info
Publication number
GB1517331A
GB1517331A
GB22167/75A
GB2216775A
GB1517331A
GB 1517331 A
GB1517331 A
GB 1517331A
GB 22167/75 A
GB22167/75 A
GB 22167/75A
GB 2216775 A
GB2216775 A
GB 2216775A
GB 1517331 A
GB1517331 A
GB 1517331A
Authority
GB
United Kingdom
Prior art keywords
mirror
polarized
fog
lamps
light issuing
Prior art date
1974-10-24
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
GB22167/75A
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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.)
1974-10-24
Filing date
1975-05-22
Publication date
1978-07-12
1975-05-22
Application filed by Robert Bosch GmbH
filed
Critical
Robert Bosch GmbH
1978-07-12
Publication of GB1517331A
publication
Critical
patent/GB1517331A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F21—LIGHTING
F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
F21S41/00—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps
F21S41/10—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source
F21S41/12—Illuminating devices specially adapted for vehicle exteriors, e.g. headlamps characterised by the light source characterised by the type of emitted light
F21S41/135—Polarised
Abstract
1517331 Polarized foglamps ROBERT BOSCH GmbH 22 May 1975 [24 Oct 1974] 22167/75 Heading F4R A vehicle foglamp comprises a curved (parabolic) mirror with a light source at the focus, means (an interference polarizer with zig-zag-shaped steps) being provided for polarizing light issuing from what is) in use, the upper half of the mirror whilst light issuing from the lower half of the mirror is either polarized in a different direction or leaves the lamp without polarization. Reference has been directed by the Comptroller to Specification 1,421,404.
GB22167/75A
1974-10-24
1975-05-22
Lamps for use in fog
Expired
GB1517331A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
DE19742450456
DE2450456A1
(en)
1974-10-24
1974-10-24
FOG LIGHTS
Publications (1)
Publication Number
Publication Date
GB1517331A
true
GB1517331A
(en)
1978-07-12
Family
ID=5929011
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB22167/75A
Expired
GB1517331A
(en)
1974-10-24
1975-05-22
Lamps for use in fog
Country Status (8)
Country
Link
US
(1)
US4020336A
(en)
JP
(1)
JPS5166179A
(en)
DE
(1)
DE2450456A1
(en)
FR
(1)
FR2289840A1
(en)
GB
(1)
GB1517331A
(en)
IT
(1)
IT1043621B
(en)
NL
(1)
NL7512421A
(en)
SE
(1)
SE420528B
(en)
Families Citing this family (17)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CH587439A5
(en)
*
1974-12-10
1977-04-29
Daimler Benz Ag
GB1597712A
(en)
*
1977-01-17
1981-09-09
Plessey Co Ltd
Display devices
US4796160A
(en)
*
1987-11-13
1989-01-03
Myron Kahn
Polarized lighting panel
DE69025924T2
(en)
*
1989-12-26
1996-11-14
Mitsubishi Rayon Co
OPTICAL DEVICE FOR GENERATING POLARIZED LIGHT
US5751480A
(en)
*
1991-04-09
1998-05-12
Canon Kabushiki Kaisha
Plate-like polarizing element, a polarizing conversion unit provided with the element, and a projector provided with the unit
US5326968A
(en)
*
1993-03-12
1994-07-05
Honeywell Inc.
Photoelectric sensor with a circular polarizing lens attached to its housing
US5394253A
(en)
*
1993-04-06
1995-02-28
Kelly; Shawn L.
Flat polarizing nonabsorbing beam splitter
JPH071428U
(en)
*
1993-06-04
1995-01-10
株式会社エンプラス
Surface light source
EP0962807B1
(en)
1993-12-21
2008-12-03
Minnesota Mining And Manufacturing Company
Multilayered optical film
US6025897A
(en)
*
1993-12-21
2000-02-15
3M Innovative Properties Co.
Display with reflective polarizer and randomizing cavity
US5833360A
(en)
*
1996-10-17
1998-11-10
Compaq Computer Corporation
High efficiency lamp apparatus for producing a beam of polarized light
EP1368681A4
(en)
*
2001-02-21
2005-08-03
Wavien Inc
Illumination system using filament lamps
HU2874U
(en)
*
2004-07-08
2005-03-29
Polarium Hangulat Es Koezerzet
Luminaire for producing of linearly polarized light and directing to target area
TWI269112B
(en)
*
2005-04-28
2006-12-21
Young Optics Inc
Optical projecting device and polarizing light source module thereof
BR112013000935B1
(en)
2010-07-14
2018-08-14
Invisi Shield Limited
polarized light apparatus, method and system for frightening animals
WO2015063512A1
(en)
*
2013-11-04
2015-05-07
Wells Simon Robert
Fog light systems
EP3360798B1
(en)
2017-02-10
2019-12-25
Goodrich Lighting Systems GmbH
Ground illumination aircraft light unit
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE2216991A1
(en)
*
1972-04-08
1973-10-11
Bosch Gmbh Robert
POLARIZING HEADLIGHTS
1974
1974-10-24
DE
DE19742450456
patent/DE2450456A1/en
not_active
Ceased
1975
1975-05-22
GB
GB22167/75A
patent/GB1517331A/en
not_active
Expired
1975-10-01
US
US05/618,415
patent/US4020336A/en
not_active
Expired – Lifetime
1975-10-22
JP
JP50127263A
patent/JPS5166179A/ja
active
Pending
1975-10-23
NL
NL7512421A
patent/NL7512421A/en
not_active
Application Discontinuation
1975-10-23
IT
IT28621/75A
patent/IT1043621B/en
active
1975-10-23
SE
SE7511876A
patent/SE420528B/en
unknown
1975-10-24
FR
FR7532676A
patent/FR2289840A1/en
active
Granted
Also Published As
Publication number
Publication date
DE2450456A1
(en)
1976-05-06
FR2289840B1
(en)
1980-01-04
SE7511876L
(en)
1976-04-26
US4020336A
(en)
1977-04-26
IT1043621B
(en)
1980-02-29
JPS5166179A
(en)
1976-06-08
SE420528B
(en)
1981-10-12
NL7512421A
(en)
1976-04-27
FR2289840A1
(en)
1976-05-28
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Legal Events
Date
Code
Title
Description
1978-11-08
PS
Patent sealed [section 19, patents act 1949]
1982-06-30
746
Register noted ‘licences of right’ (sect. 46/1977)
1984-01-04
PCNP
Patent ceased through non-payment of renewal fee
