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GB2260735A - Vehicle safe distance indicator - Google Patents

Vehicle safe distance indicator Download PDF

Info

Publication number
GB2260735A
GB2260735A GB9122639A GB9122639A GB2260735A GB 2260735 A GB2260735 A GB 2260735A GB 9122639 A GB9122639 A GB 9122639A GB 9122639 A GB9122639 A GB 9122639A GB 2260735 A GB2260735 A GB 2260735A
Authority
GB
United Kingdom
Prior art keywords
image
card
safe distance
reflection
distance indicator
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Withdrawn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
GB9122639A
Other versions
GB9122639D0 (en
Inventor
Walter John Tanswell
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 GB9122639A priority Critical patent/GB2260735A/en
Publication of GB9122639D0 publication Critical patent/GB9122639D0/en
Publication of GB2260735A publication Critical patent/GB2260735A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C3/00—Measuring distances in line of sight; Optical rangefinders
    • G01C3/22—Measuring distances in line of sight; Optical rangefinders using a parallactic triangle with variable angles and a base of fixed length at, near, or formed by the object
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0149—Head-up displays characterised by mechanical features
    • G02B2027/0154—Head-up displays characterised by mechanical features with movable elements
    • G02B2027/0156—Head-up displays characterised by mechanical features with movable elements with optionally usable elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/01—Head-up displays
    • G02B27/0179—Display position adjusting means not related to the information to be displayed
    • G02B2027/0187—Display position adjusting means not related to the information to be displayed slaved to motion of at least a part of the body of the user, e.g. head, eye

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

A card (10), which may be of any shape eg rectangular, round or triangular and may be made of cardboard or plastics, carries an image (11) of any desired form and is placed on the instrument cover so that an image of the card is seen in the windscreen to give an indication of the safe distance from the vehicle ahead. The position of the image is easily adjusted simply by moving the card to take account of varying conditions, eg speed or weather. <IMAGE>

Description

REFLECTED RELATIVE DISTANCE INDICATOR (R.D.I) This invention crcates a device to indicate a safe driving distance from a vchicle in front.
For some tims there has ben a need for a device that would rffactrvalv achieve safe seperation of vehicles an cotarways to avoid cosily - sometimes fatal - rearmend actidents and zulitple pile-ups.
Tbe R.D.I. will creete a visual referance point on a vehicle windscrean which wlli indicate when veur vehicle is travaling toc clane to the lead vehicle in fornt.
The accompenying drawings shows examples of the form and the R.D.I. can be produced.
The indicator card 10 will be of cardboad or plastic mat with a matt white finish on the front, which when placed instplument cover of a vehicle will reflect an image onto whdscreen.
The Mages 11 on the R.D.I card can of coarme be any shape eg.
car leage, name or company logo to suit individual preference.
Also the R.D.I card listelf can be of varying size and shape eg.
oblong or round as shown, or it could be trianglar, square or indeed any shane.
The R.D.I is eimply a means of reflecting an image onte a vehicle windscreen that is used as a relative point of reference.
The images on the R.D.I. card can also be of a different colour, other than black as shown.

Claims (1)

  1. By moving the position of the R.D.I card up or down the instrument cover the reflection can be adjusted to indicate relative distance from a lead vehicle in front.
    The R.D.I., thus correctly positione will give visual safe distance indication, which can be easily re-adiustad to take account of wmrying apeeds and/or westher conditions, by means of a simmle. VELCRT (RTM) mating ztrip, method of fixing.
    The R.D.I image being a reflection, will allow drivers to @mes through' the indicator, thus avolding any unwanted rastriction of vision.
    the R.D.I. device dan be easily fitted in minutes by the motorist at very low cost.
GB9122639A 1991-10-24 1991-10-24 Vehicle safe distance indicator Withdrawn GB2260735A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9122639A GB2260735A (en) 1991-10-24 1991-10-24 Vehicle safe distance indicator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9122639A GB2260735A (en) 1991-10-24 1991-10-24 Vehicle safe distance indicator

Publications (2)

Publication Number Publication Date
GB9122639D0 GB9122639D0 (en) 1991-12-04
GB2260735A true GB2260735A (en) 1993-04-28

Family

ID=10703502

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9122639A Withdrawn GB2260735A (en) 1991-10-24 1991-10-24 Vehicle safe distance indicator

Country Status (1)

Country Link
GB (1) GB2260735A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793261A1 (en) * 2005-12-01 2007-06-06 C.R.F. Societa Consortile per Azioni Transparent display based on photoluminescent material

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224475A (en) * 1988-11-05 1990-05-09 Frank Lister Speed distance head-up display

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2224475A (en) * 1988-11-05 1990-05-09 Frank Lister Speed distance head-up display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1793261A1 (en) * 2005-12-01 2007-06-06 C.R.F. Societa Consortile per Azioni Transparent display based on photoluminescent material

Also Published As

Publication number Publication date
GB9122639D0 (en) 1991-12-04

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)