JPS5066238A - - Google Patents

Info

Publication number
JPS5066238A
JPS5066238A JP49107561A JP10756174A JPS5066238A JP S5066238 A JPS5066238 A JP S5066238A JP 49107561 A JP49107561 A JP 49107561A JP 10756174 A JP10756174 A JP 10756174A JP S5066238 A JPS5066238 A JP S5066238A
Authority
JP
Japan
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
JP49107561A
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 filed Critical
Publication of JPS5066238A publication Critical patent/JPS5066238A/ja
Pending 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
    • G02B27/40—Optical focusing aids
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
    • G02B7/28—Systems for automatic generation of focusing signals
    • G02B7/36—Systems for automatic generation of focusing signals using image sharpness techniques, e.g. image processing techniques for generating autofocus signals
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
JP49107561A 1973-10-09 1974-09-18 Pending JPS5066238A (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404318A US3906219A (en) 1973-10-09 1973-10-09 Focus detecting apparatus

Publications (1)

Publication Number Publication Date
JPS5066238A true JPS5066238A (ja) 1975-06-04

Family

ID=23599141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP49107561A Pending JPS5066238A (ja) 1973-10-09 1974-09-18

Country Status (3)

Country Link
US (1) US3906219A (ja)
JP (1) JPS5066238A (ja)
CA (1) CA1014386A (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129220A (ja) * 1974-04-01 1975-10-13
JPH0577088U (ja) * 1992-03-30 1993-10-19 九州変圧器株式会社 バッフルプレートの取付構造

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201456A (en) * 1976-04-22 1980-05-06 Wolbarsht Myron L Method and apparatus for detecting the focusing condition of an optical system
US4185191A (en) * 1978-06-05 1980-01-22 Honeywell Inc. Range determination system
US4470676A (en) * 1978-07-28 1984-09-11 Canon Kabushiki Kaisha Focus detecting device
JPS5535317A (en) * 1978-09-01 1980-03-12 Asahi Optical Co Ltd Focus detector of camera
US4281927A (en) * 1979-08-27 1981-08-04 Louis Dzuban Apparatus for indicating maximum resolution for projected images
US4420252A (en) * 1979-12-21 1983-12-13 Fuji Photo Film Co., Ltd. Light measuring device for controlling exposure
US4631394A (en) * 1982-10-25 1986-12-23 Olympus Optical Co., Ltd. Focusing device for optical systems
JPS59155809A (ja) * 1983-02-24 1984-09-05 Olympus Optical Co Ltd 自動焦点検出装置
DE3475013D1 (en) * 1983-03-29 1988-12-08 Olympus Optical Co Microscope provided with automatic focusing device
IT1201256B (it) * 1985-03-19 1989-01-27 Consiglio Nazionale Ricerche Perfezionamento nei dispositivi per la messa a fuoco automatica dei sistemi ottici,in particolare microspopi e strumenti per l'acquisizione elettronica di immagini microscopiche
US4698493A (en) * 1985-08-20 1987-10-06 D. L. Fried Associates, Inc. Method and apparatus for measuring distance utilizing binocular optics
US5159648A (en) * 1988-05-27 1992-10-27 Chinon Kabushiki Kaisha Image pickup apparatus having a mask for defining the extent of the image to be reproduced
US5210565A (en) * 1991-06-21 1993-05-11 Eastman Kodak Company Oscillating pupil autofocus method and apparatus
SE0300355D0 (sv) 2003-02-10 2003-02-10 Electrolux Ab Hand held vacuum cleaner
SE529683C2 (sv) * 2006-03-24 2007-10-23 Electrolux Abp Handhållen dammsugare
SE531125C2 (sv) * 2007-01-19 2008-12-23 Electrolux Ab Förbättringar med avseende på luftströmningsförluster i en dammsugare
US8151411B2 (en) * 2006-04-10 2012-04-10 Ab Electrolux Vacuum cleaner
US8424154B2 (en) 2006-04-10 2013-04-23 Ab Electrolux Vacuum cleaner with filter cleaning means
US20080040883A1 (en) * 2006-04-10 2008-02-21 Jonas Beskow Air Flow Losses in a Vacuum Cleaners
US8402601B2 (en) * 2007-01-23 2013-03-26 AB Electronlux Vacuum cleaner nozzle

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927216A (en) * 1957-12-19 1960-03-01 Burroughs Corp Photometric character recognition device
US3450883A (en) * 1965-02-03 1969-06-17 Conductron Corp Automatic focusing apparatus
DE1547457A1 (de) * 1966-01-22 1970-02-19 Schneider Co Optische Werke Verfahren und Vorrichtung zur automatischen Scharfeinstellung optischer Systeme
US3553455A (en) * 1968-03-01 1971-01-05 Copal Co Ltd Automatic focusing apparatus by means of phase discrimination
US3634689A (en) * 1969-04-22 1972-01-11 Hitachi Ltd Automatic position or condition control devices using relative rotation, linear positioning, and magnification
US3610934A (en) * 1969-08-22 1971-10-05 Century Geophysical Corp Automatic focusing system utilizing means for alternately directing light over two paths having slightly different lengths
JPS499372B1 (ja) * 1969-11-15 1974-03-04
US3631785A (en) * 1970-07-30 1972-01-04 Eastman Kodak Co Automatic focusing device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50129220A (ja) * 1974-04-01 1975-10-13
JPH0577088U (ja) * 1992-03-30 1993-10-19 九州変圧器株式会社 バッフルプレートの取付構造

Also Published As

Publication number Publication date
CA1014386A (en) 1977-07-26
US3906219A (en) 1975-09-16

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