US4572646A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display device in camera finder
Assignee: Canon Inc
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Filing: 1985-02-06
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Granted: 1986-02-25
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Expires: 2005-02-06
Abstract
Abstract A display device in the finder of a camera has a plurality of digits of light-emitting elements for displaying exposure information on the side of a frame of field of view of the finder. The light-emitting element of the nearest one of the digits to the frame of field of view is made brightest, and, as the distance from the frame increases, the brightness of the light-emitting element of each digit is made lower. Therefore, the apparent brightnesses of all the light-emitting elements become almost equal to one another, permitting the observer to read the displayed information with ease and clearness.
Inventors
- 👤 Masami Shimizu
- 👤 Nobuyuki Suzuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:35
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/18; G03B17/20
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
91 words
An indicating apparatus for a camera comprising: (a) a view finder; (b) information indicating means provided to be displayed in an end portion of said view finder, said indicating means including at least a first indicating member provided to be displayed adjacent said end portion, and a second indicating member provided to be displayed in a farther position than the position where the first indicating member is displayed; and (c) brightness control means for making the brightness of said first indicating member higher than the brightness of said second indicating member.
Claim 2
Dependent Claim
91 words
An indicating apparatus for a camera comprising: (a) a view finder; (b) information indicating means provided to be displayed in an end portion of said view finder, said indicating means including at least a first indicating member provided to be displayed adjacent said end portion, and a second indicating member provided to be displayed in a farther position than the position where the first indicating member is displayed; and (c) brightness control means for making the brightness of said first indicating member higher than the brightness of said second indicating member.
Claim 3
Dependent Claim
17 words
An indicating apparatus according to claim 1, wherein said information indicating means includes a light emitting member.
Claim 4
Dependent Claim
24 words
An indicating apparatus according to claim 1, wherein said first indicating member includes a plurality of light emitting element arranged to represent prescribed informations.
Claim 5
Dependent Claim
24 words
An indicating apparatus according to claim 1, wherein said second indicating member includes a plurality of light emitting elements arranged to represent prescribed informations.
Claim 6
Dependent Claim
36 words
An indicating apparatus according to claim 1, wherein said first indicating member includes a plurality of liquid crystal segments arranged to represent prescribed informations and a light emitting element arranged to illuminate said liquid crystal segments.
Claim 7
Dependent Claim
36 words
An indicating apparatus according to claim 1, wherein said second indicating member includes a plurality of liquid crystal segments arranged to represent prescribed informations and a light emitting element arranged to illuminate said liquid crystal segments.
Claim 8
Dependent Claim
92 words
An indicating apparatus for a camera comprising: (a) a view finder; (b) photographic information indicating means provided to be displayed in an end portion of the view finder, the indicating means including at least a first indicating member provided to be displayed adjacent said end portion, and a second indicating member provided to be displayed in a farther position than the position where said first indicating member is displayed; and (c) brightness control means for making the brightness of said first indicating member higher than the brightness of said second indicating member.
Claim 9
Dependent Claim
92 words
An indicating apparatus for a camera comprising: (a) a view finder; (b) photographic information indicating means provided to be displayed in an end portion of the view finder, the indicating means including at least a first indicating member provided to be displayed adjacent said end portion, and a second indicating member provided to be displayed in a farther position than the position where said first indicating member is displayed; and (c) brightness control means for making the brightness of said first indicating member higher than the brightness of said second indicating member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-24 | 1989-08-26 | 1990-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-24 | 1993-08-26 | 1994-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-24 | 1997-08-26 | 1998-02-25 | $7700.00 | Window Closed / Lapsed |