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DE1755074B1 - Display device for soiling and fogging of windows - Google Patents

Display device for soiling and fogging of windows

Info

Publication number
DE1755074B1
DE1755074B1 DE19681755074 DE1755074A DE1755074B1 DE 1755074 B1 DE1755074 B1 DE 1755074B1 DE 19681755074 DE19681755074 DE 19681755074 DE 1755074 A DE1755074 A DE 1755074A DE 1755074 B1 DE1755074 B1 DE 1755074B1
Authority
DE
Germany
Prior art keywords
display device
soiling
fogging
windows
radiation detector
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.)
Pending
Application number
DE19681755074
Other languages
German (de)
Inventor
Herbert Maier
Siegfried Roth
Dieter Schneider
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.)
Eltro GmbH and Co
Original Assignee
Eltro GmbH and Co
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 Eltro GmbH and Co filed Critical Eltro GmbH and Co
Priority to DE19681755074 priority Critical patent/DE1755074B1/en
Priority to SE273269A priority patent/SE353497B/xx
Priority to FR6906294A priority patent/FR2004803A1/fr
Priority to GB1604969A priority patent/GB1242621A/en
Publication of DE1755074B1 publication Critical patent/DE1755074B1/en
Pending 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)

Description

Hierzu 1 Blatt Zeichnungen1 sheet of drawings

Claims (4)

Patentansprüche:Patent claims: 1. Anzeigevorrichtung für das Verschmutzen und Beschlagen von Fenstern, gekennzeichnet durch zwei an-der ,Innenseite der Scheibe (1) in der Nähe ihrer beiden Außenränder angebrachte Dreikantprismen· (2, 3), eine. Strahlungsquelle (4), die so angeordnet ist, daß ihre Strahlen senkrecht auf die Außenfläche des Prismas (2) auftreffen und einem Strahlungsdetektor (5) an der Außenseite des zweiten Prismas (3) in analoger Anordnung wie die Strahlungsquelle (4).1. Display device for the soiling and fogging of windows, marked by two on the inside of the disc (1) triangular prisms attached near their two outer edges · (2, 3), one. Radiation source (4), which is arranged so that its rays are perpendicular to the outer surface of the prism (2) and a radiation detector (5) on the outside of the second prism (3) in analogous arrangement as the radiation source (4). 2. Anzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Strahlungsdetektor (5) über einen Verstärker einen Schaltkreis steuert, an den eine Signalvorrichtung angeschlossen ist. '■ '2. Display device according to claim 1, characterized in that the radiation detector (5) controls a circuit via an amplifier to which a signal device is connected is. '■' 3. Anzeigevorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Strahlungsdetektor (5) über einen Verstärker einen Schaltkreis für einen Scheibenwischer steuert.3. Display device according to claim 1, characterized in that the radiation detector (5) controls a circuit for a windshield wiper via an amplifier. 4. Anzeigevorrichtung- nach Anspruch 1, dadurch gekennzeichnet, daß der Strahlungsdetektor (5) über einen Verstärker einen Schaltkreis für einen Scheibenwischer und eine Waschanlage steuert.4. Display device according to claim 1, characterized in that the radiation detector (5) A wiper and washer circuit through an amplifier controls.
DE19681755074 1968-03-27 1968-03-27 Display device for soiling and fogging of windows Pending DE1755074B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE19681755074 DE1755074B1 (en) 1968-03-27 1968-03-27 Display device for soiling and fogging of windows
SE273269A SE353497B (en) 1968-03-27 1969-02-27
FR6906294A FR2004803A1 (en) 1968-03-27 1969-03-06
GB1604969A GB1242621A (en) 1968-03-27 1969-03-27 Improvements in or relating to the detection of dirt or condensation on windows

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681755074 DE1755074B1 (en) 1968-03-27 1968-03-27 Display device for soiling and fogging of windows

Publications (1)

Publication Number Publication Date
DE1755074B1 true DE1755074B1 (en) 1970-09-10

Family

ID=5693303

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19681755074 Pending DE1755074B1 (en) 1968-03-27 1968-03-27 Display device for soiling and fogging of windows

Country Status (4)

Country Link
DE (1) DE1755074B1 (en)
FR (1) FR2004803A1 (en)
GB (1) GB1242621A (en)
SE (1) SE353497B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833635A1 (en) * 1978-08-01 1980-02-14 Siemens Ag Meter to detect dirtying of optical boundaries - has LED which transmits radiation towards surface, and detects reflected radiation
FR2512552A1 (en) * 1981-09-04 1983-03-11 Westinghouse Electric Corp FIBER OPTIC IMPURITY DETECTOR
DE3247659A1 (en) * 1982-12-23 1984-06-28 Wolfgang Dr. 7000 Stuttgart Ruhrmann OPTICAL SENSOR
FR2593912A1 (en) * 1986-02-04 1987-08-07 Vaisala Oy METHOD FOR MEASURING LIGHT TRANSMISSION FACTOR AND APPARATUS FOR IMPLEMENTING SAID METHOD
DE102014220652A1 (en) * 2014-10-13 2016-04-14 Continental Automotive Gmbh Vehicle window with a window heating and heating and sensor unit for a vehicle
US10136491B2 (en) 2016-05-11 2018-11-20 B&R Industrial Automation GmbH Lighting apparatus with adjustable irradiance

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2818019C2 (en) * 1978-04-25 1980-07-17 Bayerische Motoren Werke Ag, 8000 Muenchen Vehicle headlights with a pollution sensor
JPS61116645A (en) * 1984-11-09 1986-06-04 Nippon Denso Co Ltd Liquid detector for automatic windshield wiper controller
US4652745A (en) * 1985-12-06 1987-03-24 Ford Motor Company Optical moisture sensor for a window or windshield
DE3619538A1 (en) * 1986-06-10 1987-12-17 Egon Harig Apparatebau Elektro DEVICE DETECTING ARRANGEMENT
IT212332Z2 (en) * 1987-07-31 1989-07-04 Veglia Borletti Srl DEVICE SENSOR OF THE PRESENCE OF WATER DROPS ON A VEHICLE CRYSTAL AND EQUIPMENT OF A WINDSCREEN WIPER EQUIPPED WITH THE SAID DEVICE
GB2360583A (en) * 2000-03-21 2001-09-26 Microflow Ltd Optical condensation monitor
AU2015333554B2 (en) 2014-10-17 2021-05-13 Nima Nabavi Self-cleaning optical sensor assembly

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2833635A1 (en) * 1978-08-01 1980-02-14 Siemens Ag Meter to detect dirtying of optical boundaries - has LED which transmits radiation towards surface, and detects reflected radiation
FR2512552A1 (en) * 1981-09-04 1983-03-11 Westinghouse Electric Corp FIBER OPTIC IMPURITY DETECTOR
DE3247659A1 (en) * 1982-12-23 1984-06-28 Wolfgang Dr. 7000 Stuttgart Ruhrmann OPTICAL SENSOR
EP0115025A2 (en) * 1982-12-23 1984-08-08 Wolfgang Dr. Ruhrmann Optical sensor
EP0115025B1 (en) * 1982-12-23 1988-05-25 Wolfgang Dr. Ruhrmann Optical sensor
FR2593912A1 (en) * 1986-02-04 1987-08-07 Vaisala Oy METHOD FOR MEASURING LIGHT TRANSMISSION FACTOR AND APPARATUS FOR IMPLEMENTING SAID METHOD
DE102014220652A1 (en) * 2014-10-13 2016-04-14 Continental Automotive Gmbh Vehicle window with a window heating and heating and sensor unit for a vehicle
US10136491B2 (en) 2016-05-11 2018-11-20 B&R Industrial Automation GmbH Lighting apparatus with adjustable irradiance

Also Published As

Publication number Publication date
FR2004803A1 (en) 1969-12-05
SE353497B (en) 1973-02-05
GB1242621A (en) 1971-08-11

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