JPH0220055B2 - - Google Patents

Info

Publication number
JPH0220055B2
JPH0220055B2 JP57041403A JP4140382A JPH0220055B2 JP H0220055 B2 JPH0220055 B2 JP H0220055B2 JP 57041403 A JP57041403 A JP 57041403A JP 4140382 A JP4140382 A JP 4140382A JP H0220055 B2 JPH0220055 B2 JP H0220055B2
Authority
JP
Japan
Prior art keywords
road surface
ratio
light
circuit
change
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 - Lifetime
Application number
JP57041403A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58158540A (ja
Inventor
Keiji Fujimura
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.)
Denso Ten Ltd
Original Assignee
Denso Ten Ltd
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 Denso Ten Ltd filed Critical Denso Ten Ltd
Priority to JP4140382A priority Critical patent/JPS58158540A/ja
Publication of JPS58158540A publication Critical patent/JPS58158540A/ja
Publication of JPH0220055B2 publication Critical patent/JPH0220055B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/21—Polarisation-affecting properties

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
JP4140382A 1982-03-15 1982-03-15 路面状態の判別装置 Granted JPS58158540A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4140382A JPS58158540A (ja) 1982-03-15 1982-03-15 路面状態の判別装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4140382A JPS58158540A (ja) 1982-03-15 1982-03-15 路面状態の判別装置

Publications (2)

Publication Number Publication Date
JPS58158540A JPS58158540A (ja) 1983-09-20
JPH0220055B2 true JPH0220055B2 (enrdf_load_stackoverflow) 1990-05-08

Family

ID=12607398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4140382A Granted JPS58158540A (ja) 1982-03-15 1982-03-15 路面状態の判別装置

Country Status (1)

Country Link
JP (1) JPS58158540A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010025915A (ja) * 2008-06-18 2010-02-04 Ricoh Co Ltd 撮像装置及び路面状態判別方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02161337A (ja) * 1988-12-14 1990-06-21 Nagoya Denki Kogyo Kk 路面状態検知装置
JPH04175641A (ja) * 1990-11-08 1992-06-23 Japan Radio Co Ltd 路面状態識別装置
KR0127331B1 (ko) * 1991-12-19 1997-12-29 구자홍 티브이의 시청거리 경고메세지 출력 및 부재시 메세지전달을 위한 음성녹음재생장치 및 그 제어방법
EP0628787A3 (en) * 1993-06-08 1995-06-21 Omron Tateisi Electronics Co Optical sensor.
DE102013201741A1 (de) * 2013-02-04 2014-08-21 Robert Bosch Gmbh System zur Erfassung einer Fahrbahnbeschaffenheit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010025915A (ja) * 2008-06-18 2010-02-04 Ricoh Co Ltd 撮像装置及び路面状態判別方法

Also Published As

Publication number Publication date
JPS58158540A (ja) 1983-09-20

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