GB2273991B - Optical equipment with device for detecting direction of visual axis - Google Patents

Optical equipment with device for detecting direction of visual axis

Info

Publication number
GB2273991B
GB2273991B GB9318252A GB9318252A GB2273991B GB 2273991 B GB2273991 B GB 2273991B GB 9318252 A GB9318252 A GB 9318252A GB 9318252 A GB9318252 A GB 9318252A GB 2273991 B GB2273991 B GB 2273991B
Authority
GB
United Kingdom
Prior art keywords
visual axis
optical equipment
detecting direction
detecting
optical
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 - Fee Related
Application number
GB9318252A
Other versions
GB9318252D0 (en
GB2273991A (en
Inventor
Yoshiaki Irie
Akira Yamada
Akihiko Nagano
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.)
Canon Inc
Original Assignee
Canon Inc
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
Priority claimed from JP4262749A external-priority patent/JPH0688935A/en
Priority claimed from JP26429092A external-priority patent/JP3225628B2/en
Priority claimed from JP29150592A external-priority patent/JP3184634B2/en
Priority claimed from GB9317396A external-priority patent/GB2270171B/en
Priority claimed from GB9318035A external-priority patent/GB2270389B/en
Application filed by Canon Inc filed Critical Canon Inc
Publication of GB9318252D0 publication Critical patent/GB9318252D0/en
Publication of GB2273991A publication Critical patent/GB2273991A/en
Application granted granted Critical
Publication of GB2273991B publication Critical patent/GB2273991B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/091—Digital circuits
    • G03B7/093—Digital circuits for control of exposure time
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/26—Power supplies; Circuitry or arrangement to switch on the power source; Circuitry to check the power source voltage
    • 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
    • G02B27/0093—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B13/02—Viewfinders
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B7/00—Control of exposure by setting shutters, diaphragms or filters, separately or conjointly
    • G03B7/08—Control effected solely on the basis of the response, to the intensity of the light received by the camera, of a built-in light-sensitive device
    • G03B7/081—Analogue circuits
    • G03B7/089—Analogue circuits for storage of exposure value in mirror reflex cameras
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B2213/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
    • G03B2213/02—Viewfinders
    • G03B2213/025—Sightline detection

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Automatic Focus Adjustment (AREA)
  • Viewfinders (AREA)
GB9318252A 1992-09-07 1993-09-03 Optical equipment with device for detecting direction of visual axis Expired - Fee Related GB2273991B (en)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
JP4262749A JPH0688935A (en) 1992-09-07 1992-09-07 Optical device having detecting function for line of sight
JP26429092A JP3225628B2 (en) 1992-09-07 1992-09-07 Eye gaze detection device
JP29150592A JP3184634B2 (en) 1992-10-29 1992-10-29 Optical device having line-of-sight detection device
GB9317396A GB2270171B (en) 1992-08-24 1993-08-20 Optical apparatus having a function of inputting data of a visual axis
GB9318035A GB2270389B (en) 1992-09-07 1993-08-31 Apparatus for detecting a sight axis

Publications (3)

Publication Number Publication Date
GB9318252D0 GB9318252D0 (en) 1993-10-20
GB2273991A GB2273991A (en) 1994-07-06
GB2273991B true GB2273991B (en) 1996-04-17

Family

ID=27517204

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9318252A Expired - Fee Related GB2273991B (en) 1992-09-07 1993-09-03 Optical equipment with device for detecting direction of visual axis

Country Status (1)

Country Link
GB (1) GB2273991B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3352238B2 (en) * 1994-07-26 2002-12-03 キヤノン株式会社 Eye gaze detection device and camera
JP3477279B2 (en) * 1995-05-29 2003-12-10 ペンタックス株式会社 Eye gaze detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1380355A (en) * 1971-07-06 1975-01-15 Honeywell Inc Oculometers
GB2117594A (en) * 1982-03-04 1983-10-12 Standard Telephones Cables Ltd Data compression
GB2177276A (en) * 1984-09-24 1987-01-14 Univ Adelaide Improvements relating to an apparatus and method related to control through eye gaze direction

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1380355A (en) * 1971-07-06 1975-01-15 Honeywell Inc Oculometers
GB2117594A (en) * 1982-03-04 1983-10-12 Standard Telephones Cables Ltd Data compression
GB2177276A (en) * 1984-09-24 1987-01-14 Univ Adelaide Improvements relating to an apparatus and method related to control through eye gaze direction

Also Published As

Publication number Publication date
GB9318252D0 (en) 1993-10-20
GB2273991A (en) 1994-07-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20120903