JPS645651B2 - - Google Patents

Info

Publication number
JPS645651B2
JPS645651B2 JP57044185A JP4418582A JPS645651B2 JP S645651 B2 JPS645651 B2 JP S645651B2 JP 57044185 A JP57044185 A JP 57044185A JP 4418582 A JP4418582 A JP 4418582A JP S645651 B2 JPS645651 B2 JP S645651B2
Authority
JP
Japan
Prior art keywords
light
window glass
fogging
receiving element
emitting element
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
Application number
JP57044185A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58161849A (ja
Inventor
Noboru Suzuki
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.)
Subaru Corp
Original Assignee
Fuji Heavy Industries 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 Fuji Heavy Industries Ltd filed Critical Fuji Heavy Industries Ltd
Priority to JP57044185A priority Critical patent/JPS58161849A/ja
Publication of JPS58161849A publication Critical patent/JPS58161849A/ja
Publication of JPS645651B2 publication Critical patent/JPS645651B2/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
    • G01N21/41—Refractivity; Phase-affecting properties, e.g. optical path length
    • G01N21/43—Refractivity; Phase-affecting properties, e.g. optical path length by measuring critical angle

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)
JP57044185A 1982-03-19 1982-03-19 自動車用窓ガラスの曇り検出装置 Granted JPS58161849A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57044185A JPS58161849A (ja) 1982-03-19 1982-03-19 自動車用窓ガラスの曇り検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57044185A JPS58161849A (ja) 1982-03-19 1982-03-19 自動車用窓ガラスの曇り検出装置

Publications (2)

Publication Number Publication Date
JPS58161849A JPS58161849A (ja) 1983-09-26
JPS645651B2 true JPS645651B2 (en]) 1989-01-31

Family

ID=12684509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57044185A Granted JPS58161849A (ja) 1982-03-19 1982-03-19 自動車用窓ガラスの曇り検出装置

Country Status (1)

Country Link
JP (1) JPS58161849A (en])

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4636643A (en) * 1983-07-25 1987-01-13 Nippondenso Co., Ltd. Fog detecting apparatus for use in vehicle
JPS6273248U (en]) * 1985-10-28 1987-05-11

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5687846A (en) * 1979-12-18 1981-07-16 Nec Corp Surface condition detector

Also Published As

Publication number Publication date
JPS58161849A (ja) 1983-09-26

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