EP0602895A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Image display device, semiconductor device and optical equipment
Assignee: Canon Inc
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Filing: 1993-12-09
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Granted: —
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Expires: 2013-12-09
Abstract
Abstract An optical apparatus comprises at least image display device (102), a light source (101) for illuminating the image display device (102), light-receiving device (110) for receiving the light reflected from the eye (105) of an observer, and calculation device (112) for calculating the line of sight of the observer based on the output of the light-receiving means (110). At least, a part of the illuminating light from the light source (101) is utilized as the illuminating light for illuminating the eye of the observer.
Inventors
- 👤 Shunsuke C/O Canon Kabushiki Kaisha Inoue
- 👤 Mamoru C/O Canon Kabushiki Kaisha Miyawaki
- 👤 Junichi C/O Canon Kabushiki Kaisha Hoshi
- 👤 Tetsunobu C/O Canon Kabushiki Kaisha Kohchi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-06 20:07
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/10; G02B27/16; G02B27/108; G02F; G02F1/00; G02F1/01; G02F1/13; G02F1/133; G02F1/1333; G02F1/1335; G02F1/133509; G03; G03B; G03B13/00; G03B13/02; G03B17/00; G03B17/18; G03B17/20; H; H10; H10F; H10F39/00; H10F39/10; H10F39/12; H10F39/18; H10F39/182; H10F39/1825; H10F39/80; H10F39/805; H10F39/8053; G03B2213/00; G03B2213/02; G03B2213/025
Claims Analysis
Total Claims: 56
Claim 1
Independent Claim
76 words
An optical equipment comprising at least image display means, a light source for illuminating said image display mean, light-receiving means for receiving the reflected light from the eye of an observer, and calculation means for calculating the line of sight of said observer based on the output-of said light-receiving means, wherein at least a part of the illuminating light from said light source is utilized as the illuminating light for illuminating the eye of said observer.
Claim 2
Dependent Claim
27 words
An optical equipment according to claim 1, wherein said light source is a rear light source for illuminating said image display means from the rear side thereof.
Claim 3
Dependent Claim
25 words
An optical equipment according to claim 1 or 2, wherein the illuminating light for illuminating the eye of said observer includes infrared or near-infrared light.
Claim 4
Dependent Claim
18 words
An optical equipment according to claim 3, wherein said infrared or near-infrared light is obtained through a filter.
Claim 5
Dependent Claim
29 words
An optical equipment according to claim 1, wherein the illuminating light for illuminating the eye of said observer is obtained through a filter provided in said image display means.
Claim 6
Dependent Claim
25 words
An optical equipment according to claim 5, wherein said filter is provided in an area, other than the pixel portions, of said image display device.
Claim 7
Dependent Claim
23 words
An optical equipment according to claim 6, wherein said area other than the pixel portions is an area including space between the pixels.
Claim 8
Dependent Claim
25 words
An optical equipment according to claim 5, wherein said filter is adapted to transmit a desired visible light region and the infrared or near-infrared light.
Claim 9
Dependent Claim
33 words
An optical equipment according to claim 8, wherein said desired visible light region is at least a visible light region selected from a group consisting of red light, green light and blue light.
Claim 10
Dependent Claim
29 words
An optical equipment according to claim 5, wherein said other than the pixel portions has a configuration substantially same as that of the pixel of said image display device.
Claim 11
Dependent Claim
27 words
An optical equipment according to claim 5, wherein said area other than the pixel portions is included in an image display area of said image display device.
Claim 12
Dependent Claim
20 words
An optical equipment according to claim 11, wherein said area other than the pixel portions is divided into plural areas.
Claim 13
Dependent Claim
28 words
An optical equipment according to claim 1, wherein said light source includes a visible light region component and a wavelength component longer than said visible light region component.
Claim 14
Dependent Claim
18 words
An optical equipment according to claim 13, wherein said longer wavelength component includes the infrared or near-infrared light.
Claim 15
Dependent Claim
49 words
An optical equipment according to claim 13, wherein said light source at least includes a 1st light source for emitting light principally containing a visible light region component, and a 2nd light source for emitting light principally containing a component longer in wavelength than said visible light region component.
Claim 16
Dependent Claim
46 words
An optical equipment according to claim 1, wherein said light source is at least one selected from the group consisting of a fluorescent lamp, a photodiode, a light source by the electron beam of the cathode ray tube, a plasma display tube and an electroluminescent tube.
Claim 17
Dependent Claim
30 words
An optical equipment according to claim 1, wherein said light source is a fluorescent lamp having fluorescent materials emitting red light, green light, blue light and infrared and/or near-infrared light.
Claim 18
Dependent Claim
28 words
An optical equipment according to claim 17, wherein said red light, green light, blue light and infrared and/or near-infrared light are generated by at least a fluorescent lamp.
Claim 19
Dependent Claim
23 words
An optical equipment according to claim 2, wherein said infrared or near-infrared light contains light of a wavelength of 850 - 950 nm.
Claim 20
Dependent Claim
23 words
An optical equipment according to claim 13, wherein said longer wavelength component contains a component of a wavelength of 850 - 950 nm.
Claim 21
Dependent Claim
18 words
An optical equipment according to claim 1, wherein said image display means includes a liquid crystal display device.
Claim 22
Dependent Claim
16 words
An optical equipment according to claim 1, wherein said light-receiving means is a photoelectric converting element.
Claim 23
Dependent Claim
18 words
An optical equipment according to claim 1, wherein said light-receiving means is included in said image display means.
Claim 24
Dependent Claim
23 words
An optical equipment according to claim 23, wherein said light-receiving means is included in an image display area of said image display means.
Claim 25
Dependent Claim
18 words
An optical equipment according to claim 23 or 24, wherein said light-receiving means includes plural photoelectric converting elements.
Claim 26
Dependent Claim
22 words
An optical equipment according to any of claims 22 to 25, wherein said image display means includes a liquid crystal display device.
Claim 27
Dependent Claim
27 words
An optical equipment according to any of claims 1 to 26, further comprising an optical system for condensing the reflected light from the eye of said observer.
Claim 28
Dependent Claim
22 words
An optical equipment according to any of claims 1 to 27, wherein said image display means is driven by a shift register.
Claim 29
Dependent Claim
21 words
An optical equipment according to any of claims 1 to 28, wherein said light-receiving means is driven by a shift register.
Claim 30
Dependent Claim
27 words
An optical equipment according to any of claims 1 to 29, wherein said image display means and said light-receiving means are driven by a common shift register.
Claim 31
Dependent Claim
50 words
An image display device provided with a rear light source, and image display means for effecting display by passing the light of said rear light source through plural pixels, wherein the light from said light source includes a visible region component and a longer wavelength component outside the visible region.
Claim 32
Dependent Claim
25 words
An image display device according to claim 31, wherein the longer wavelength component outside the visible region contains a component of 850 - 950 nm.
Claim 33
Dependent Claim
23 words
An image display device according to claim 31, further comprising a filter transmitting at least said longer wavelength component outside the visible region.
Claim 34
Dependent Claim
19 words
An image display device according to claim 33, wherein said filter substantially does not transmit the visible region component.
Claim 35
Dependent Claim
22 words
An image display device according to claim 33, wherein said filter further transmits light of a wavelength of the visible region component.
Claim 36
Dependent Claim
25 words
An image display device according to claim 31, wherein said visible region component is colored light selected from red light, green light and blue light.
Claim 37
Dependent Claim
38 words
An image display device according to claim 31, wherein said light source includes a 1st light source principally emitting said visible region component and a 2nd light source principally emitting said longer wavelength component outside the visible region.
Claim 38
Dependent Claim
30 words
An image display device according to claim 31, wherein said visible region component and said longer wavelength component outside the visible region are generated by at least a fluorescent lamp.
Claim 39
Dependent Claim
27 words
An image display device according to claim 38, wherein said fluorescent lamp includes fluorescent materials emitting red light, green light, blue light and infrared and/or near-infrared light.
Claim 40
Dependent Claim
15 words
An image display device according to claim 31, wherein said light source includes a semiconductor.
Claim 41
Dependent Claim
21 words
An image display device according to claim 33, wherein said filter is provided at least in an area between the pixels.
Claim 42
Dependent Claim
25 words
An image display device according to claim 33, wherein said filter is provided at least within an image display area of the image display means.
Claim 43
Dependent Claim
21 words
An image display device according to claim 32, wherein said filter has a configuration substantially same as that of the pixel.
Claim 44
Dependent Claim
22 words
An image display device according to any of claims 31 to 43, wherein said image display means further includes a light-receiving unit.
Claim 45
Dependent Claim
17 words
An image display device according to any of claims 31 to 43, further comprising a light-receiving unit.
Claim 46
Dependent Claim
22 words
An image display device according to any of claims 31 to 45, wherein said image display means is liquid crystal display means.
Claim 47
Dependent Claim
38 words
An image display device provided with a rear light source and image display means for effecting display by passing the light from said rear light source through plural pixels, wherein said image display means includes a light-receiving unit.
Claim 48
Dependent Claim
17 words
An image display device according to claim 47, wherein said light-receiving unit is a photoelectric converting element.
Claim 49
Dependent Claim
25 words
An image display device according to claim 47, wherein said light-receiving unit is provided in an area between the pixels of said image display means.
Claim 50
Dependent Claim
22 words
An image display device according to any of claims 47 to 49, wherein said image display means is liquid crystal display means.
Claim 51
Dependent Claim
19 words
A semiconductor device, wherein a Si-containing light-emitting element and a light-receiving element are formed on a same silicon chip.
Claim 52
Dependent Claim
38 words
A semiconductor device according to claim 51, wherein said Si-containing light-emitting element is an element utilizing the light-emitting phenomenon in the crystal defects in monocrystalline silicon, in amorphous silicon, at the polysilicon-monocrystalline silicon interface or in porous silicon.
Claim 53
Dependent Claim
22 words
A semiconductor device according to claim 51 or 52, wherein plural light-emitting elements and/or plural light-receiving elements are arranged in an array.
Claim 54
Dependent Claim
25 words
A semiconductor device according to any of claims 51 to 53, wherein an on-chip lens are provided on the light-emitting element and/or the light-receiving element.
Claim 55
Dependent Claim
16 words
An optical equipment provided with a semiconductor device according to any of claims 51 to 54.
Claim 56
Dependent Claim
17 words
An image display device provided with a semiconductor device according to any of claims 51 to 54.
References Cited (Backward Citations)
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