US4855782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device for indicating the setting of a zoom lens
Assignee: Pentax Corp
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Filing: 1988-04-12
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Granted: 1989-08-08
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Expires: 2008-04-12
Abstract
Abstract A display device in a camera with a zoom lens, for providing a visual indication of the setting of the zoom lens. It includes a zoom encoder (10) for detecting the zoom lens setting, a liquid crystal display (8) having a plurality of display segments (S1-S15) disposed in an arcuate pattern, and drive circuits (24, 25) for driving the display segments. A micro-computer (20) controls the drive circuits, based on the zoom setting as detected by the zoom encoder (10), such that the state of each of the display segments can be changed by the drive circuits in response to a change in the angle of view of the zoom lens. The display device can provide an intuitively perceivable visual indication with the arcuate array of display segments (S1-S15).
Inventors
- 👤 Takeo Kobayashi
- 👤 Norio Numako
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:26
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/18
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
110 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens which is variable by zooming operation; display means having a plurality of display segments disposed in an arcuate pattern; driving means for driving each of said display segments individually; and control means for controlling, on the basis of the zoom setting as detected by said detecting means, said driving means so that the state of each of said segments can be changed by the driving action of said driving means in response to a change in the angle of view of said zoom lens.
Claim 2
Dependent Claim
110 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens which is variable by zooming operation; display means having a plurality of display segments disposed in an arcuate pattern; driving means for driving each of said display segments individually; and control means for controlling, on the basis of the zoom setting as detected by said detecting means, said driving means so that the state of each of said segments can be changed by the driving action of said driving means in response to a change in the angle of view of said zoom lens.
Claim 3
Dependent Claim
34 words
A zoom setting display device as claimed in claim 1, wherein said display means has a central display segment and a plurality of display segments symmetrically disposed on both sides of the central segment.
Claim 4
Dependent Claim
71 words
A zoom setting display device as claimed in claim 2, wherein said control means comprises means for controlling said driving means on the basis of the zoom setting as detected by the detecting means, in such a manner that the driven range changes sequentially, and in a symmetrical fashion, between the central segment and the peripheral segments in relation to the change in the angle of view of said zoom lens.
Claim 5
Dependent Claim
65 words
A zoom setting display device as claimed in claim 2, wherein said control means comprises means for controlling said driving means on the basis of the zoom setting as detected by the detecting means, in such a manner that the driven range widens sequentially, in a symmetrical fashion, from the central segment toward peripheral segments as the angle of view of the zoom lens widens.
Claim 6
Dependent Claim
123 words
A zoom setting display device as claimed in claim 1, wherein: the display means includes an additional segment situated away from the arcuate pattern of said plurality of display segments; said control means comprises means for controlling said driving means on the basis of the zoom setting as detected by the detecting means, in such a manner that the driven range widens sequentially and in a symmetric manner from a central segment of said plurality of display segments toward peripheral segments of said plurality of segments as the angle view of the zoom lens widens, and that in a macro-position of said zoom lens only an additional display segment situated away from the arcuate pattern of said plurality of display segments is driven.
Claim 7
Dependent Claim
19 words
A zoom setting display device as claimed in claim 1, wherein said display means comprises a liquid crystal display.
Claim 8
Dependent Claim
19 words
A zoom lens setting display device as claimed in claim 1, wherein said display means comprises light emitting diodes.
Claim 9
Dependent Claim
19 words
A zoom setting display device as claimed in claim 2, wherein said display means comprises a liquid crystal display.
Claim 10
Dependent Claim
19 words
A zoom setting display device as claimed in claim 3, wherein said display means comprises a liquid crystal display.
Claim 11
Dependent Claim
19 words
A zoom setting display device as claimed in claim 4, wherein said display means comprises a liquid crystal display.
Claim 12
Dependent Claim
19 words
A zoom lens setting display device as claimed in claim 2, wherein said display means comprises light emitting diodes.
Claim 13
Dependent Claim
19 words
A zoom lens setting display device as claimed in claim 3, wherein said display means comprises light emitting diodes.
Claim 14
Dependent Claim
19 words
A zoom lens setting display device as claimed in claim 4, wherein said display means comprises light emitting diodes.
Claim 15
Dependent Claim
111 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens, which is variable by a zooming operation; display means having a plurality of display segments disposed in an arcuate pattern; driving means for driving said display segments; and control means for controlling, on the basis of the zoom setting detected by said detecting means, said drive means so that the state of each of said segments can be changed by driving action of said driving means in response to a change in the angle of view of said zoom lens caused by a zooming operation.
Claim 16
Dependent Claim
111 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens, which is variable by a zooming operation; display means having a plurality of display segments disposed in an arcuate pattern; driving means for driving said display segments; and control means for controlling, on the basis of the zoom setting detected by said detecting means, said drive means so that the state of each of said segments can be changed by driving action of said driving means in response to a change in the angle of view of said zoom lens caused by a zooming operation.
Claim 17
Dependent Claim
114 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens, which is variable by a zooming operation; display means disposed in a pattern representative of a maximum angle of view of said zoom lens; driving means for driving said display means; and control means for controlling, on the basis of the zoom setting detected by said detecting means, said drive means so that the state of said display means can be changed by driving action of said driving means, in response to a change in the angle of view of said zoom lens caused by a zooming operation.
Claim 18
Dependent Claim
114 words
A zoom setting display device in a camera provided with a zoom lens, comprising: zoom-setting detecting means for detecting the zoom setting of said zoom lens, which is variable by a zooming operation; display means disposed in a pattern representative of a maximum angle of view of said zoom lens; driving means for driving said display means; and control means for controlling, on the basis of the zoom setting detected by said detecting means, said drive means so that the state of said display means can be changed by driving action of said driving means, in response to a change in the angle of view of said zoom lens caused by a zooming operation.
Claim 19
Dependent Claim
46 words
A zoom setting display device in accordance with claim 15, wherein said display means comprises a plurality of display segments disposed in said pattern, and further wherein the state of each of said display segments can be changed by the driving action of said driving means.
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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) | 1992-08-07 | 1993-02-06 | 1993-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-08-07 | 1997-02-06 | 1997-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-08-07 | 2001-02-06 | 2001-08-08 | $7700.00 | Window Closed / Lapsed |