DE3306790A1 - Lichtquelle - Google Patents

Lichtquelle

Info

Publication number
DE3306790A1
DE3306790A1 DE19833306790 DE3306790A DE3306790A1 DE 3306790 A1 DE3306790 A1 DE 3306790A1 DE 19833306790 DE19833306790 DE 19833306790 DE 3306790 A DE3306790 A DE 3306790A DE 3306790 A1 DE3306790 A1 DE 3306790A1
Authority
DE
Germany
Prior art keywords
light beam
light
light source
emitter
source according
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.)
Granted
Application number
DE19833306790
Other languages
German (de)
English (en)
Other versions
DE3306790C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html
Inventor
James R. 94306 Palo Alto Calif. Casciani
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.)
HP Inc
Original Assignee
Hewlett Packard 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 Hewlett Packard Co filed Critical Hewlett Packard Co
Publication of DE3306790A1 publication Critical patent/DE3306790A1/de
Application granted granted Critical
Publication of DE3306790C2 publication Critical patent/DE3306790C2/de
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
    • H10F30/00—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors
    • H10F30/20—Individual radiation-sensitive semiconductor devices in which radiation controls the flow of current through the devices, e.g. photodetectors the devices having potential barriers, e.g. phototransistors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
    • G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
    • G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
    • G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
    • G01D5/34715—Scale reading or illumination devices

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optical Transform (AREA)
  • Photo Coupler, Interrupter, Optical-To-Optical Conversion Devices (AREA)
DE19833306790 1982-03-05 1983-02-26 Lichtquelle Granted DE3306790A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/355,002 US4508965A (en) 1982-03-05 1982-03-05 Uniaxially collimated light source for optical shaft angle encoders

Publications (2)

Publication Number Publication Date
DE3306790A1 true DE3306790A1 (de) 1983-09-15
DE3306790C2 DE3306790C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-04-30

Family

ID=23395848

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19833306790 Granted DE3306790A1 (de) 1982-03-05 1983-02-26 Lichtquelle

Country Status (3)

Country Link
US (1) US4508965A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS58165384A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3306790A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184628A3 (en) * 1984-12-08 1988-02-10 Bodenseewerk Geratetechnik Gmbh Read head for a displacement encoder, in particular an angle encoder

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2194635B (en) * 1986-03-14 1991-01-02 Mitutoyo Mfg Co Ltd Photoelectric type displacement detecting instrument
US4660242A (en) * 1986-03-24 1987-04-28 International Shoe Machine Corporation Activator
US4952799A (en) * 1989-03-10 1990-08-28 Hewlett-Packard Company Reflective shaft angle encoder
DE19510726C2 (de) * 1994-03-31 2002-06-27 Siemens Microelectronics Inc Verfahren zur Ausrichtung eines Lichtweges bei einer Optikeinrichtung
DE19511474A1 (de) * 1994-03-31 1995-10-05 Siemens Comp Inc Optischer Kodierer
US7244928B2 (en) * 2005-01-07 2007-07-17 Avago Technologies Ecbu Ip (Singapore) Pte. Ltd. Optical encoder
CN112304252B (zh) * 2020-10-30 2022-03-22 维沃移动通信有限公司 折叠角度确定方法、折叠设备及电子设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808447A (en) * 1971-05-28 1974-04-30 Wilkata Codes Inc Photoelectric scanning device using diffuse and specular reflection
US4266125A (en) * 1978-12-21 1981-05-05 Hewlett-Packard Company Optical shaft angle encoder
DE3145098A1 (de) * 1980-11-25 1982-06-16 BEI Electronics, Inc., 93103 Santa Barbara, Calif. Optisches system fuer einen optischen codierer

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999064A (en) * 1975-01-09 1976-12-21 The Brunton Company Angular displacement measuring apparatus with strobe means
US4319134A (en) * 1978-06-16 1982-03-09 Sensor Technology, Inc. Optical encoder
DE2848612C2 (de) * 1978-11-09 1981-05-27 Pfaff Haushaltsmaschinen GmbH, 7500 Karlsruhe Impulsgeber eines Nähmaschinenantriebes
US4263506A (en) * 1978-12-21 1981-04-21 Hewlett-Packard Company Pulse generating apparatus
JPS56151311A (en) * 1980-04-25 1981-11-24 Hitachi Ltd Detecting device for rotary angle

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3808447A (en) * 1971-05-28 1974-04-30 Wilkata Codes Inc Photoelectric scanning device using diffuse and specular reflection
US4266125A (en) * 1978-12-21 1981-05-05 Hewlett-Packard Company Optical shaft angle encoder
DE3145098A1 (de) * 1980-11-25 1982-06-16 BEI Electronics, Inc., 93103 Santa Barbara, Calif. Optisches system fuer einen optischen codierer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0184628A3 (en) * 1984-12-08 1988-02-10 Bodenseewerk Geratetechnik Gmbh Read head for a displacement encoder, in particular an angle encoder

Also Published As

Publication number Publication date
US4508965A (en) 1985-04-02
JPS58165384A (ja) 1983-09-30
DE3306790C2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-04-30

Similar Documents

Publication Publication Date Title
EP0191440B1 (de) Lithografiegerät zur Erzeugung von Mikrostrukturen
DE2933831C2 (de) Ringförmige Röntgenröhrenanordnung eines Computer-Röntgen-Tomographiegeräts
DE3025945C2 (de) Kaltkathodenstruktur mit mindestens einer Kaltkathode zur Erzeugung eines Elektronenstrahls und Verwendung der Kaltkathodenstruktur
EP0208894B1 (de) Flugzeit-Massenspektrometer mit einem Ionenreflektor
DE69218808T2 (de) Röntgenuntersuchungsapparat
DE3780646T2 (de) Elliptischer zylinder-lichtabnehmer fuer ein photostimulierbares phosphor-bilderfassungsgeraet.
DE4023490A1 (de) Einrichtung zur steuerung der brennpunktposition in einer roentgenstrahlroehre
DE1937482B2 (de) Mikrostrahlsonde
DE2803347A1 (de) Roentgenstrahlenquelle
DE3306790A1 (de) Lichtquelle
DE3045013A1 (de) Elektronenspektrometer
DE3780766T2 (de) Analysator fuer geladene teilchen.
DE2429113C3 (de) Strahlungsdetektor mit zweifacher Verstärkung
DE2719856A1 (de) Hochgeschwindigkeits-system zum erzeugen tomographischer roentgenbilder
DE2631516B2 (de) Röntgenröhre zur Verwendung bei der Radiotomographie
DE3035241A1 (de) Farbbildwiedergaberoehre und vorrichtung mit einer derartigen roehre
DE2446789A1 (de) Korpuskularstrahloptisches geraet zur korpuskelbestrahlung eines praeparats
DE2702448C2 (de) Verfahren zur Positionierung eines mit einer Marke versehenen Werkstückes relativ zu einem Abtastfeld bzw. zu einer Maske
DE7121967U (de) Vorrichtung zur messung der intensitaet eines ionenstrahl
DE2628474C3 (de) Aufnahmeeinrichtrung mit Bildwandlertarget für eine Aufnahmeröhre
EP0156024B1 (de) Detektorsystem
DE1200962B (de) Drehanodenroentgenroehre
EP0276731A2 (de) Verfahren zur Elektronenstrahl-Führung mit Energieselektion und Elektronenspektrometer
DE1942389A1 (de) Vorrichtung zur Faksimile-UEbertragung
DE2329190A1 (de) Roentgenspektrometer

Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: BOEHMERT, A., DIPL.-ING., PAT.-ANW. STAHLBERG, W.,

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee