US5797046A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual axis controllable optical apparatus including a visual axis detecting device for detecting a visual axis
Assignee: Canon Inc
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Filing: 1995-03-22
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Granted: 1998-08-18
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Expires: 2015-03-22
Abstract
Abstract A visual axis controllable optical apparatus, which is used in different postures. The optical apparatus includes a light detecting device for receiving light reflected by an eye, and detecting the intensity distribution of the received light, a storage device for storing personal data associated with a personal difference of the eye in correspondence with the different postures and a visual axis detecting device for detecting a visual axis. The visual axis detecting device detects the position of the visual axis using the personal data stored in the storage device corresponding to the posture of the optical apparatus, and the intensity distribution detected by the light detecting device.
Inventors
- 👤 Akihiko Nagano
- 👤 Akira Yamada
- 👤 Yoshiaki Irie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 21:49
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; G03B2213/00; G03B2213/02; G03B2213/025
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
121 words
A visual axis controllable optical apparatus, which is used in mutually different postures, comprising: an image pick-up device that picks up at least a portion of an eyeball image: a posture detecting device that detects a posture of said optical apparatus: a storage device that stores personal data for correcting an individual difference in a visual axis, wherein said storage device stores personal data corresponding to each of the mutually different postures; and a visual axis detecting device that detects a visual axis, wherein said visual axis detecting device detects the visual axis using personal data corresponding to the posture of said optical apparatus detected by said posture detecting device and the eyeball image picked up by said image pick-up device.
Claim 2
Dependent Claim
121 words
A visual axis controllable optical apparatus, which is used in mutually different postures, comprising: an image pick-up device that picks up at least a portion of an eyeball image: a posture detecting device that detects a posture of said optical apparatus: a storage device that stores personal data for correcting an individual difference in a visual axis, wherein said storage device stores personal data corresponding to each of the mutually different postures; and a visual axis detecting device that detects a visual axis, wherein said visual axis detecting device detects the visual axis using personal data corresponding to the posture of said optical apparatus detected by said posture detecting device and the eyeball image picked up by said image pick-up device.
Claim 3
Dependent Claim
30 words
An apparatus according to claim 1, further comprising: an input device that inputs personal data to said storage device in accordance with the posture detected by said posture detecting device.
Claim 4
Dependent Claim
20 words
An apparatus according to claim 1, further comprising: an erasing device that erases personal data stored in said storage device.
Claim 5
Dependent Claim
29 words
An apparatus according to claim 3, wherein said erasing device erases the personal data from said storage device in accordance with the posture detected by said posture detecting means.
Claim 6
Dependent Claim
36 words
An apparatus according to claim 4, wherein when the posture of said optical apparatus detected by said posture detecting device corresponds to a basic state, said erasing device erases personal data associated with the respective posture.
Claim 7
Dependent Claim
24 words
An apparatus according to claim 5, wherein said optical apparatus comprises a camera, and the basic state is a horizontal posture of said camera.
Claim 8
Dependent Claim
36 words
An apparatus according to claim 4, wherein when the posture of said optical apparatus detected by said posture detecting device corresponds to a non-basic state, said erasing device erases personal data associated with the non-basic state.
Claim 9
Dependent Claim
24 words
An apparatus according to claim 7, wherein said optical apparatus comprises a camera, and the basic state is a horizontal posture of said camera.
Claim 10
Dependent Claim
30 words
An apparatus according to claim 4, further comprising: an input device that inputs personal data to said storage device in accordance with the posture detected by said posture detecting device.
Claim 11
Dependent Claim
28 words
An apparatus according to claim 1, wherein said optical apparatus comprises a camera, and the different postures include two horizontal postures and a vertical posture of said camera.
Claim 12
Dependent Claim
123 words
A visual axis controllable optical apparatus, which is used in mutually different postures, comprising: an illumination device that illuminates an eyeball; an image pick-up device that picks up at least a portion of image of the eyeball illuminated by said illumination device; a visual axis detection device that detects a visual axis by using the image of the eyeball picked up by said image pick-up device; a posture detecting device that detects a posture of said optical apparatus; and a storage device that stores illumination parameters of said illumination device corresponding to each of the mutually different postures, said illumination device illuminating the eyeball under the stored illumination parameters corresponding to the posture of said optical apparatus detected by said posture detecting device.
Claim 13
Dependent Claim
123 words
A visual axis controllable optical apparatus, which is used in mutually different postures, comprising: an illumination device that illuminates an eyeball; an image pick-up device that picks up at least a portion of image of the eyeball illuminated by said illumination device; a visual axis detection device that detects a visual axis by using the image of the eyeball picked up by said image pick-up device; a posture detecting device that detects a posture of said optical apparatus; and a storage device that stores illumination parameters of said illumination device corresponding to each of the mutually different postures, said illumination device illuminating the eyeball under the stored illumination parameters corresponding to the posture of said optical apparatus detected by said posture detecting device.
Claim 14
Dependent Claim
71 words
An apparatus according to claim 11, further comprising: a personal data storage device that stores personal data associated with the visual axis in correspondence with the different postures, said visual axis detecting device detecting the position of the visual axis using the personal data corresponding to the posture of said optical apparatus detected by said posture detecting device, and the image of the eyeball picked up by said image pick-up device.
Claim 15
Dependent Claim
30 words
An apparatus according to claim 12, further comprising: an input device that inputs personal data to said storage device in accordance with the posture detected by said posture detecting device.
Claim 16
Dependent Claim
15 words
An apparatus according to claim 12, wherein the illumination parameters include a brightness of illumination.
Claim 17
Dependent Claim
17 words
An apparatus according to claim 12, wherein the illumination parameters include positions of light sources for illumination.
Claim 18
Dependent Claim
19 words
An apparatus according to claim 12, wherein the illumination parameters include positions and brightness of light sources for illumination.
Claim 19
Dependent Claim
19 words
An apparatus according to claim 12, further comprising: an input device that inputs illumination parameters to said storage device.
Claim 20
Dependent Claim
15 words
An apparatus according to claim 11, wherein the illumination conditions include a brightness of illumination.
Claim 21
Dependent Claim
17 words
An apparatus according to claim 11, wherein the illumination conditions include positions of light sources for illumination.
Claim 22
Dependent Claim
19 words
An apparatus according to claim 11, wherein the illumination conditions include positions and brightness of light sources for illumination.
Claim 23
Dependent Claim
19 words
An apparatus according to claim 11, further comprising: an input device that inputs illumination parameters to said storage device.
Claim 24
Dependent Claim
29 words
An apparatus according to claim 11, wherein said optical apparatus comprises a camera, and the mutually different postures include a horizontal posture and two vertical postures of said camera.
Claim 25
Dependent Claim
29 words
An apparatus according to claim 12, wherein said optical apparatus comprises a camera, and the mutually different postures include a horizontal posture and two vertical postures of said camera.
Claim 26
Dependent Claim
156 words
A visual axis detecting device comprising: light receiving means for optically receiving an image of an eyeball of a user; display means for displaying visual indices for obtaining personal data of the user within a view field of the user, wherein said display means displays the visual indices a plurality of times at mutually different positions in a vertical direction within the view field and the visual indices are displayed in order from the upper portion in a vertical direction; personal data producing means for producing personal data of the user from an image of the eyeball of the user which said light receiving means optically receives when the visual index is displayed; and visual axis detecting means for detecting a visual axis of the user on the basis of the personal data produced by said personal data producing means and the image of the eyeball of the user optically received by said light receiving means.
Claim 27
Dependent Claim
156 words
A visual axis detecting device comprising: light receiving means for optically receiving an image of an eyeball of a user; display means for displaying visual indices for obtaining personal data of the user within a view field of the user, wherein said display means displays the visual indices a plurality of times at mutually different positions in a vertical direction within the view field and the visual indices are displayed in order from the upper portion in a vertical direction; personal data producing means for producing personal data of the user from an image of the eyeball of the user which said light receiving means optically receives when the visual index is displayed; and visual axis detecting means for detecting a visual axis of the user on the basis of the personal data produced by said personal data producing means and the image of the eyeball of the user optically received by said light receiving means.
Claim 28
Dependent Claim
44 words
A visual axis detecting device according to claim 24, further comprising posture detecting means for detecting a posture of said visual axis detecting device, wherein a displaying position of the visual index is changed according to the detection result of said posture detecting means.
Claim 29
Dependent Claim
48 words
A visual axis detecting device according to claim 25, wherein said personal data producing means comprises a memory for storing the personal data, said memory storing the personal data corresponding to the detection result of said posture detecting means when the personal data of the user is produced.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2001-08-17 | 2002-02-16 | 2002-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2005-08-17 | 2006-02-16 | 2006-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2009-08-17 | 2010-02-16 | 2010-08-18 | $7700.00 | Window Closed / Lapsed |