Patent EP0618471A2 successfully refreshed from Google Patents.
EP0618471A2
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EP
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Image display apparatus and image photographing apparatus therefor
Assignee: Canon Inc
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Filing: 1994-03-28
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Granted: —
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Expires: 2014-03-28
Abstract
Abstract This invention relates to an image display apparatus having first image generating means for displaying first image information by a plurality of pixels emitting light, second image generating means for displaying second image information by a plurality of pixels emitting light, the second image information being part of the first image information, visual axis detecting means for detecting an observer's visual axis direction, optical means for combining a first image from the first image generating means and a second image from the second image generating means, moving the second image relative to the first image in conformity with an output signal from the visual axis detecting means and turning it to the observer's pupil, the marginal portion of the second image being made substantially coincident with the boundary between the pixels of the first image when the images are combined, and image display changing means for changing the first image information and the second image information on the basis of the output signal of the visual axis detecting means.
Inventors
- 👤 Naosato Taniguchi
- 👤 Susumu Matsumura
- 👤 Yoko Yoshinaga
- 👤 Shin Kobayashi
- 👤 Toshiyuki Sudo
- 👤 Hideki Morishima
- 👤 Tadashi Kaneko
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-09 14:26
CPC Classifications
G; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/307; G02; G02B; G02B27/00; G02B27/01; G02B27/017; G02B27/0101; G02B2027/0132; G02B2027/0138; G02B2027/014; G02B27/0179; G02B2027/0187; G02B2027/0192; G02B2027/0198
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
165 words
An image display apparatus comprising: first image generating means for displaying first image information by a plurality of pixels emitting light; second image generating means for displaying second image information by a plurality of pixels emitting light, said second image information being part of said first image information; visual axis detecting means for detecting an observer's visual axis direction; optical means for combining a first image from said first image generating means and a second image from said second image generating means, moving said second image relative to said first image in conformity with an output signal from said visual axis detecting means and turning it to the observer's pupil, the marginal portion of said second image being made substantially coincident with the boundary between the pixels of said first image when said images are combined; and image display changing means for changing said first image information and said second image information on the basis of the output signal of said visual axis detecting means.
Claim 2
Dependent Claim
33 words
An apparatus according to Claim 1, wherein the size of said second image is integer times as great as the interval between the pixels of said first image when said images are combined.
Claim 3
Dependent Claim
38 words
An apparatus according to Claim 1, wherein said first image information in an area wherein said first image and said second image are superposed one upon the other when said images are combined is said second image information.
Claim 4
Dependent Claim
26 words
An apparatus according to Claim 3, wherein the area of said images superposed one upon the other is not displayed by said first image generating means.
Claim 5
Dependent Claim
57 words
An apparatus according to Claim 1, wherein the pixel density in the central portion of said second image is higher than the pixel density of said first image and the pixel density in the marginal portion of said second image is substantially the same as the pixel density of said first image when said images are combined.
Claim 6
Dependent Claim
53 words
An apparatus according to Claim 1, wherein the luminance in the central portion of said second image is higher than the luminance of said first image and the luminance in the marginal portion of said second image is substantially the same as the luminance of said first image when said images are combined.
Claim 7
Dependent Claim
35 words
An apparatus according to Claim 1, wherein said first and second images are combined on an intermediate imaging plane through respective relay lenses, are enlarged as virtual images and are turned to the observer's pupil.
Claim 8
Dependent Claim
14 words
An apparatus according to Claim 7, wherein said relay lenses have different imaging magnifications.
Claim 9
Dependent Claim
23 words
An apparatus according to Claim 1, wherein said image display apparatus is provided correspondingly to each of the observer's left and right eyes.
Claim 10
Dependent Claim
28 words
An apparatus according to Claim 9, wherein said second image generating means corresponding to the left and right eyes display parallax image information corresponding to the respective eyes.
Claim 11
Dependent Claim
16 words
An apparatus according to Claim 9, wherein said first image generating means is used in common.
Claim 12
Dependent Claim
156 words
An image display apparatus comprising: first image generating means for emitting light and displaying first image information; second image generating means for emitting light and displaying second image information, said second image information being part of said first image information; visual axis detecting means for detecting an observer's visual axis direction; head portion position detecting means for detecting the position of the observer's head portion; optical means for combining a first image from said first image generating means and a second image from said second image generating means, moving said second image relative to said first image in conformity with an output signal from said visual axis detecting means and turning it to the observer's pupil; and image information changing means for changing said first image information and said second image information on the basis of the output signal of said visual axis detecting means and the output signal of said head portion position detecting means.
Claim 13
Dependent Claim
55 words
An apparatus according to Claim 12, further comprising an image memory having recorded therein the image all around a predetermined position, and wherein a part of said image memory is inputted as said first image information to said first image generating means in conformity with the output signal of said head portion position detecting means.
Claim 14
Dependent Claim
38 words
An apparatus according to Claim 12, wherein said first image information in an area wherein said first image and said second image are superposed one upon the other when said images are combined is said second image information.
Claim 15
Dependent Claim
26 words
An apparatus according to Claim 14, wherein the area of said images superposed one upon the other is not displayed by said first image generating means.
Claim 16
Dependent Claim
35 words
An apparatus according to Claim 12, wherein said first and second images are combined on an intermediate imaging plane through respective relay lenses, are enlarged as virtual images and are turned to the observer's pupil.
Claim 17
Dependent Claim
14 words
An apparatus according to Claim 16, wherein said relay lenses have different imaging magnifications.
Claim 18
Dependent Claim
23 words
An apparatus according to Claim 12, wherein said image display apparatus is provided correspondingly to each of the observer's left and right eyes.
Claim 19
Dependent Claim
28 words
An apparatus according to Claim 18, wherein said second image generating means corresponding to the left and right eyes display parallax image information corresponding to the respective eyes.
Claim 20
Dependent Claim
16 words
An apparatus according to Claim 19, wherein said first image generating means is used in common.
Claim 21
Dependent Claim
161 words
An image photographing apparatus for an image display apparatus for displaying, on the basis of output signals from visual axis detecting means for detecting the visual axis direction of an observer who observes a first image from first image generating means for displaying first image information and head portion position detecting means for detecting the position of the observer's head portion, a combined image of said first image and a second image from second image generating means for displaying second image information which is part of said first image information, comprising: first image pickup means for obtaining said first image information; second image pickup means for obtaining said second image information; means for controlling the photo-taking direction of said first image pickup means in conformity with the output signal from said head portion position detecting means; and means for controlling the photo-taking direction of said second image pickup means in conformity with the output signal from said visual axis detecting means.
Claim 22
Dependent Claim
48 words
An apparatus according to Claim 21, further comprising means for transmitting the image information obtained from said first image pickup means to said image display apparatus while making the compression rate of said image information higher than that of the information obtained from said second image pickup means.
Claim 23
Dependent Claim
23 words
An apparatus according to Claim 21, wherein said image photographing apparatus is provided correspondingly to each of the observer's left and right eyes.
Claim 24
Dependent Claim
16 words
An apparatus according to Claim 23, wherein said first image pickup means is used in common.
Claim 25
Dependent Claim
169 words
An image display method comprising: the first image generating step of displaying first image information by a plurality of pixels emitting light; the second image generating step of displaying second image information by a plurality of pixels emitting light, said second image information being part of said first image information; the visual axis detecting step of detecting an observer's visual axis direction; the step of combining a first image from said first image generating step and a second image from said second image generating step, moving said second image relative to said first image in conformity with an output signal from said visual axis detecting step and turning it to the observer's pupil, the marginal portion of said second image being made substantially coincident with the boundary between the pixels of said first image when said images are combined; and the image display changing step of changing said first images information and said second image information on the basis of the output signal of said visual axis detecting step.
Claim 26
Dependent Claim
33 words
A method according to Claim 25, wherein the size of said second image is integer times as great as the interval between the pixels of said first image when said images are combined.
Claim 27
Dependent Claim
38 words
A method according to Claim 25, wherein said first image information in an area wherein said first image and said second image are superposed one upon the other when said images are combined is said second image information.
Claim 28
Dependent Claim
26 words
A method according to Claim 27, wherein the area of said images superposed one upon the other is not displayed in said first image generating step:
Claim 29
Dependent Claim
57 words
A method according to Claim 25, wherein the pixel density in the central portion of said second image is higher than the pixel density of said first image and the pixel density in the marginal portion of said second image is substantially the same as the pixel density of said first image when said images are combined.
Claim 30
Dependent Claim
53 words
A method according to Claim 25, wherein the luminance in the central portion of said second image is higher than the luminance of said first image and the luminance in the marginal portion of said second image is substantially the same as the luminance of said first image when said images are combined.
Claim 31
Dependent Claim
35 words
A method according to Claim 25, wherein said first and second images are combined on an intermediate imaging plane through respective relay lenses, are enlarged as virtual images and are turned to the observer's pupil.
Claim 32
Dependent Claim
14 words
A method according to Claim 31, wherein said relay lenses have different imaging magnifications.
Claim 33
Dependent Claim
21 words
A method according to Claim 25, wherein said steps are provided correspondingly to each of the observer's left and right eyes.
Claim 34
Dependent Claim
28 words
A method according to Claim 33, wherein said second image generating steps corresponding to the left and right eyes display parallax image information corresponding to the respective eyes.
Claim 35
Dependent Claim
16 words
A method according to Claim 33, wherein said first image generating step is used in common.
Claim 36
Dependent Claim
161 words
An image display method comprising: the first image generating step of emitting light and displaying first image information; the second image generating step of emitting light and displaying second image information, said second image information being part of said first image information; the visual axis detecting step of detecting an observer's visual axis direction; the head portion position detecting step of detecting the position of the observer's head portion; the step of combining a first image from said first image generating step and a second image from said second image generating step, moving said second image relative to said first image in conformity with an output signal from said visual axis detecting step and turning it to the observer's pupil; and the image information changing step of changing said first image information and said second image information on the basis of the output signal of said visual axis detecting step and the output signal of said head portion position detecting step.
Claim 37
Dependent Claim
59 words
A method according to Claim 36, further comprising the image memory step of recording image information all around a predetermined position, and wherein part of the image information recorded by said image memory step is inputted as said first image information to first image generating means in conformity with the output signal of said head portion position detecting step.
Claim 38
Dependent Claim
38 words
A method according to Claim 36, wherein said first image information in an area wherein said first image and said second image are superposed one upon the other when said images are combined is said second image information.
Claim 39
Dependent Claim
26 words
A method according to Claim 38, wherein the area of said images superposed one upon the other is not displayed by said first image generating step.
Claim 40
Dependent Claim
35 words
A method according to Claim 36, wherein said first and second images are combined on an intermediate imaging plane through respective relay lenses, are enlarged as virtual images and are turned to the observer's pupil.
Claim 41
Dependent Claim
14 words
A method according to Claim 40, wherein said relay lenses have different imaging magnifications.
Claim 42
Dependent Claim
23 words
A method according to Claim 36, wherein each of said steps is provided correspondingly to each of the observer's left and right eyes.
Claim 43
Dependent Claim
28 words
A method according to Claim 42, wherein said second image generating steps corresponding to the left and right eyes display parallax image information corresponding to the respective eyes.
Claim 44
Dependent Claim
16 words
A method according to Claim 42, wherein said first image generating step is used in common.
Claim 45
Dependent Claim
168 words
An image photographing method for an image display method of displaying, on the basis of output signals from the visual axis detecting step of detecting the visual axis direction of an observer who observes a first image from the first image generating step of displaying first image information and the head portion position detecting step of detecting the position of the observer's head portion, a combined image of said first image and a second image from second image generating means for displaying second image information which is part of said first image information, comprising: a first image pickup step for obtaining said first image information; a second image pickup step for obtaining said second image information; the step of controlling the photo-taking direction of said first image pickup step in conformity with the output signal from said head portion position detecting step; and the step of controlling the photo-taking direction of said second image pickup step in conformity with the output signal from said visual axis detecting step.
Claim 46
Dependent Claim
50 words
A method according to Claim 45, further comprising the step of transmitting the image information obtained from said first image pickup step to an image display apparatus while making the compression rate of said image information higher than that of the image information obtained from said second image pickup step.
Claim 47
Dependent Claim
23 words
A method according to Claim 45, wherein each of said steps is provided correspondingly to each of the observer's left and right eyes.
Claim 48
Dependent Claim
16 words
A method according to Claim 46, wherein said first image pickup step is used in common.
References Cited (Backward Citations)
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