US5451976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image display apparatus
Assignee: Sony Corp
•
Filing: 1994-09-13
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Granted: 1995-09-19
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Expires: 2014-09-13
Abstract
Abstract An image display apparatus is described for reducing the possibility of the occurrence of minor discomforts such as headaches, eyestrain, fatigue and the like in users. A symbol indicating distance such as 1m, 3m, or ∞ is displayed on an outer periphery of a virtual image adjusting knob. When the user aligns a mark on the virtual image position adjusting knob with a position corresponding to one of the predetermined symbols, the virtual image is set so as to be displayed at a position corresponding to the symbol. Consequently, the user can more easily recognize the displayed position of the virtual image so that the generation of a minor discomfort due to long term use which is more than necessary of the image display apparatus is substantially reduced.
Inventors
- 👤 Ryo Ito
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:11
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/017; H; H04; H04N; H04N5/00; H04N5/64; G02B27/0172; G02B27/0176; G02B27/02; G02B27/0101; G02B2027/0132; G02B27/0149; G02B2027/0154; G02B2027/0159; G02B2027/0178; G02B27/64
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
75 words
An image display apparatus comprising: image displaying means for displaying an image, optical means for optically generating a virtual image of the image displayed through said image displaying means; adjusting means for adjusting a position of said virtual image; and position displaying means for displaying a position of said virtual image, wherein said position displaying means displays the position of said virtual image as a magnitude of an image screen corresponding to said virtual image.
Claim 2
Dependent Claim
75 words
An image display apparatus comprising: image displaying means for displaying an image, optical means for optically generating a virtual image of the image displayed through said image displaying means; adjusting means for adjusting a position of said virtual image; and position displaying means for displaying a position of said virtual image, wherein said position displaying means displays the position of said virtual image as a magnitude of an image screen corresponding to said virtual image.
Claim 3
Dependent Claim
41 words
An image display apparatus according to claim 1, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 4
Dependent Claim
23 words
An image display apparatus according to claim 2, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 5
Dependent Claim
31 words
An image display apparatus according to claim 3, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 6
Dependent Claim
36 words
An image display apparatus according to claim 4, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 7
Dependent Claim
41 words
An image display apparatus according to claim 1, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 8
Dependent Claim
23 words
An image display apparatus according to claim 1, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 9
Dependent Claim
31 words
An image display apparatus according to claim 1, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 10
Dependent Claim
36 words
An image display apparatus according to claim 1, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 11
Dependent Claim
22 words
An image display apparatus as set forth in claim 1, wherein said position displaying means is installed adjacent to said adjusting means.
Claim 12
Dependent Claim
41 words
An image display apparatus according to claim 10, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 13
Dependent Claim
23 words
An image display apparatus according to claim 11, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 14
Dependent Claim
31 words
An image display apparatus according to claim 12, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 15
Dependent Claim
36 words
An image display apparatus according to claim 13, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 16
Dependent Claim
41 words
An image display apparatus according to claim 10, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 17
Dependent Claim
23 words
An image display apparatus according to claim 10, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 18
Dependent Claim
31 words
An image display apparatus according to claim 10, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 19
Dependent Claim
36 words
An image display apparatus according to claim 10, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 20
Dependent Claim
21 words
An image display apparatus as set forth in claim 1, wherein said position displaying means is installed onto said adjusting means.
Claim 21
Dependent Claim
41 words
An image display apparatus according to claim 19, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 22
Dependent Claim
23 words
An image display apparatus according to claim 20, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 23
Dependent Claim
31 words
An image display apparatus according to claim 21, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 24
Dependent Claim
36 words
An image display apparatus according to claim 22, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
Claim 25
Dependent Claim
41 words
An image display apparatus according to claim 19, further comprising information means for informing a user in speech form of a change in the position of said virtual image position when said adjusting means adjusts the position of said virtual image.
Claim 26
Dependent Claim
23 words
An image display apparatus according to claim 19, further comprising notification means for displaying information corresponding to the position of said virtual image.
Claim 27
Dependent Claim
31 words
An image display apparatus according to claim 19, further comprising first controlling means for controlling a power supply according to the position of said virtual image and its displayed time duration.
Claim 28
Dependent Claim
36 words
An image display apparatus according to claim 19, which further comprises second controlling means for automatically controlling the position of said virtual image corresponding to the position of said virtual image and its displayed time duration.
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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) | 1998-09-18 | 1999-03-20 | 1999-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-09-18 | 2003-03-20 | 2003-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-09-18 | 2007-03-20 | 2007-09-19 | $7700.00 | Window Closed / Lapsed |