FR2638687B1 - DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES - Google Patents

DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES

Info

Publication number
FR2638687B1
FR2638687B1 FR8814619A FR8814619A FR2638687B1 FR 2638687 B1 FR2638687 B1 FR 2638687B1 FR 8814619 A FR8814619 A FR 8814619A FR 8814619 A FR8814619 A FR 8814619A FR 2638687 B1 FR2638687 B1 FR 2638687B1
Authority
FR
France
Prior art keywords
evaluating
vehicles
safety distances
distances
safety
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 - Fee Related
Application number
FR8814619A
Other languages
French (fr)
Other versions
FR2638687A1 (en
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.)
TANGUY VICTOR
Original Assignee
TANGUY VICTOR
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 TANGUY VICTOR filed Critical TANGUY VICTOR
Priority to FR8814619A priority Critical patent/FR2638687B1/en
Publication of FR2638687A1 publication Critical patent/FR2638687A1/en
Application granted granted Critical
Publication of FR2638687B1 publication Critical patent/FR2638687B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • G02B27/0101—Head-up displays characterised by optical features
    • G02B2027/0118—Head-up displays characterised by optical features comprising devices for improving the contrast of the display / brillance control visibility
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Traffic Control Systems (AREA)
FR8814619A 1988-11-09 1988-11-09 DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES Expired - Fee Related FR2638687B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8814619A FR2638687B1 (en) 1988-11-09 1988-11-09 DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8814619A FR2638687B1 (en) 1988-11-09 1988-11-09 DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES

Publications (2)

Publication Number Publication Date
FR2638687A1 FR2638687A1 (en) 1990-05-11
FR2638687B1 true FR2638687B1 (en) 1992-06-05

Family

ID=9371713

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8814619A Expired - Fee Related FR2638687B1 (en) 1988-11-09 1988-11-09 DEVICE FOR EVALUATING THE SAFETY DISTANCES BETWEEN TWO VEHICLES

Country Status (1)

Country Link
FR (1) FR2638687B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2673004A1 (en) * 1991-02-15 1992-08-21 X Ial ROAD INFORMATION VISUALIZATION SET FOR THE DRIVING STATION OF A RAILWAY VEHICLE.
FR2817807B1 (en) 2000-12-13 2003-04-25 Peugeot Citroen Automobiles Sa DRIVING ASSISTANCE SYSTEM FOR A MOTOR VEHICLE
FR2863050B1 (en) * 2003-11-27 2006-03-10 Peugeot Citroen Automobiles Sa DEVICE FOR MEASURING THE DISTANCE BETWEEN TWO VEHICLES.

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2884238A (en) * 1956-09-07 1959-04-28 George H Renz Mechanically driven tachometer indicator
FR1588197A (en) * 1968-03-27 1970-04-10
US3715721A (en) * 1971-02-23 1973-02-06 Nat Res Dev Vehicle station keeping device
GB1418891A (en) * 1972-01-28 1975-12-24 Nat Res Dev Headup display aparatus
DE2302684A1 (en) * 1973-01-19 1974-07-25 Koyu Saito SPEEDOMETER DISPLAY DEVICE
JPS60192912A (en) * 1984-03-14 1985-10-01 Nissan Motor Co Ltd Indicator for vehicle

Also Published As

Publication number Publication date
FR2638687A1 (en) 1990-05-11

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Legal Events

Date Code Title Description
ST Notification of lapse