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GB2268141A - Combination driving mirror - Google Patents

Combination driving mirror Download PDF

Info

Publication number
GB2268141A
GB2268141A GB9213579A GB9213579A GB2268141A GB 2268141 A GB2268141 A GB 2268141A GB 9213579 A GB9213579 A GB 9213579A GB 9213579 A GB9213579 A GB 9213579A GB 2268141 A GB2268141 A GB 2268141A
Authority
GB
United Kingdom
Prior art keywords
mirror
plain
combination driving
view
image
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
GB9213579A
Other versions
GB2268141B (en
GB9213579D0 (en
Inventor
Barrie John Hodgson
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
Priority to GB9213579A priority Critical patent/GB2268141B/en
Publication of GB9213579D0 publication Critical patent/GB9213579D0/en
Publication of GB2268141A publication Critical patent/GB2268141A/en
Application granted granted Critical
Publication of GB2268141B publication Critical patent/GB2268141B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/08—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors
    • B60R1/081—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors
    • B60R1/082—Rear-view mirror arrangements involving special optical features, e.g. avoiding blind spots, e.g. convex mirrors; Side-by-side associations of rear-view and other mirrors avoiding blind spots, e.g. by using a side-by-side association of mirrors using a single wide field mirror or an association of rigidly connected mirrors

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Mechanical Engineering (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

A driving mirror that embodies the advantages of a plain mirror 1 with those of a convex mirror 3 to give a driver good distance and speed assessment with one observation coupled with a very wide angle of view. The combination mirror can also incorporate an angled area 2 for low level observation of the wheel to kerb relationship. <IMAGE>

Description

DRIVING MIRROR This invention relates to a combination Driving Mirror.
Driving mirrors are well known features of vehicles which allow the driver to see in a rearward direction.
The plain mirror in common use, has a very narrow angle of view and the convex mirrors (part of a sphere) formally used in wing mirrors, have a wider angle of view but have the disadvantage of diminishing the image and therefore making the judgement of distance and speed difficult, which has resulted in the decline of this type in modern driving conditions such as motorway traffic.
According to the present invention, there is provided a combination driving mirror having a plain minor set transitionally tangential to a convex mirror formed from part of an elliptical cylinder. In the plain mirror section an optional angled area is provided for low level observation.
A specific embodiment of the invention will now be described by way of example with specific reference to the accompanying drawing in which: Item 1 shows the plain mirror Item 2 shows the optional angled area Item 3 shows the convex Referring to the drawing, the driving mirror comprises a plain mirror 1 with an optional angled area 2 (formed integrally or separate) set to give a low level view.
The plain mirror is set transitionally tangential to the convex mirror 3, which has various focal points on the horizontal axies only, to progressively increase the angle of view, the convex mirror being 'plain' (without curvature) on the vertical axis.

Claims (5)

ClAIMS
1. A combination driving mirror having a plain mirror set transitionally tangential to a convex mirror formed from part of an elliptical cylinder. In the plain mirror section an optional angled area is provided for low level observation.
2. A combination driving mirror as claimed in Claim 1, wherein the plain mirror provides within a narrow angle of view, a true mirrored reflection giving a driver good rear-wards distance and speed assessment of other vehicles.
3. A combination driving mirror as claimed in Claim 1 or Claim 2, wherein means are provided by a convex mirror formed from part of an elliptical cylinder, and therefore having varying focal lengths is set so that the greatest focal length is adjacent to the plain mirror and the shortest focal length is furthest from the plain mirror, and thereby giving a true vertical image on the longitudinal axis of the cylinder to assist in distance and speed assessment, and a diminished image only on the horizontal cross axis of the cylinder. This orientation produces a view with the least diminished horizontal image next to the plain mirror for maximising on the distance and speed observation, whilst giving a much wider angle of view and the greatest diminished horizontal image furthest from the plain mirror to maximise on the angle of the view where the image is not used for any assessment other than being potentially dangerous for manoeuvring.
4. A combination driving mirror as claimed in Claim 2 or Claim 3, wherein means are provided by the provision of an optional angled mirror set to give a low level of observation for viewing the wheel and kerb alignment.
5. A combination driving mirror substantially as described herein with reference to the accompanying drawings.
GB9213579A 1992-06-26 1992-06-26 Driving mirror Expired - Fee Related GB2268141B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9213579A GB2268141B (en) 1992-06-26 1992-06-26 Driving mirror

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9213579A GB2268141B (en) 1992-06-26 1992-06-26 Driving mirror

Publications (3)

Publication Number Publication Date
GB9213579D0 GB9213579D0 (en) 1992-08-12
GB2268141A true GB2268141A (en) 1994-01-05
GB2268141B GB2268141B (en) 1995-07-26

Family

ID=10717772

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9213579A Expired - Fee Related GB2268141B (en) 1992-06-26 1992-06-26 Driving mirror

Country Status (1)

Country Link
GB (1) GB2268141B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29604533U1 (en) * 1996-03-13 1996-05-23 Rappenhöner, Bruno, 51643 Gummersbach Car exterior mirror with 4 functions
GB2338691A (en) * 1998-06-23 1999-12-29 David Rochester Panoramic safety mirror

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133005A (en) * 1966-08-01 1968-11-06 John Brian Davey Improvements in exterior driving mirrors for vehicles
GB1505658A (en) * 1974-11-07 1978-03-30 Combined Optical Ind Ltd Externally mounted vehicle rear-view mirror
US4331382A (en) * 1980-03-13 1982-05-25 Pathfinder Auto Lamp Company Wide-angle mirror for automobiles and the like
GB2092534A (en) * 1980-12-03 1982-08-18 Hagiri Yoshikazu Rear-view mirror device for vehicles
GB2126548A (en) * 1982-07-12 1984-03-28 Charles Vincent Kerr Rearview mirror assembly
EP0210757A2 (en) * 1985-06-27 1987-02-04 Seidel Michael Von A mirror

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4293191A (en) * 1980-05-09 1981-10-06 Kim Matthew S Adjustable convex rearview mirror

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1133005A (en) * 1966-08-01 1968-11-06 John Brian Davey Improvements in exterior driving mirrors for vehicles
GB1505658A (en) * 1974-11-07 1978-03-30 Combined Optical Ind Ltd Externally mounted vehicle rear-view mirror
US4331382A (en) * 1980-03-13 1982-05-25 Pathfinder Auto Lamp Company Wide-angle mirror for automobiles and the like
GB2092534A (en) * 1980-12-03 1982-08-18 Hagiri Yoshikazu Rear-view mirror device for vehicles
GB2126548A (en) * 1982-07-12 1984-03-28 Charles Vincent Kerr Rearview mirror assembly
EP0210757A2 (en) * 1985-06-27 1987-02-04 Seidel Michael Von A mirror

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29604533U1 (en) * 1996-03-13 1996-05-23 Rappenhöner, Bruno, 51643 Gummersbach Car exterior mirror with 4 functions
GB2338691A (en) * 1998-06-23 1999-12-29 David Rochester Panoramic safety mirror

Also Published As

Publication number Publication date
GB2268141B (en) 1995-07-26
GB9213579D0 (en) 1992-08-12

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19990626