US4970540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Image stabilization apparatus
Assignee: Canon Inc
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Filing: 1990-03-05
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Granted: 1990-11-13
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Expires: 2010-03-05
Abstract
Abstract This specification discloses an image stabilization apparatus provided with correcting optical means for compensating image vibration, driving means for driving the correcting optical means, and controlling means for controlling the action of the driving means in response to the approach of the driving limit of the correcting optical means.
Inventors
- 👤 Francois Vasey
- 👤 Marcel Arditi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:50
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/64; G02B27/646
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
48 words
An image stabilization apparatus including: (A) correcting optical means for compensating image vibration; (B) driving means for driving said correcting optical means; and (C) controlling means for controlling the action of said driving means in response to the approach of the driving limit of said correcting optical means.
Claim 2
Dependent Claim
48 words
An image stabilization apparatus including: (A) correcting optical means for compensating image vibration; (B) driving means for driving said correcting optical means; and (C) controlling means for controlling the action of said driving means in response to the approach of the driving limit of said correcting optical means.
Claim 3
Dependent Claim
40 words
An image stabilization apparatus according to claim 1, wherein said controlling means includes velocity decreasing means for decreasing the driving velocity of said driving means in response to the approach of said correcting optical means to a possible displacement limit.
Claim 4
Dependent Claim
54 words
An image stabilization apparatus according to claim 1, wherein said controlling means includes control means for controlling the driving of said driving means in response to the approach of said correcting optical means to a possible displacement limit so that said correcting optical means is displaced to the middle of a possible displacement zone.
Claim 5
Dependent Claim
19 words
An image stabilization apparatus according to claim 3, wherein said control means is designed to act slowly and continuously.
Claim 6
Dependent Claim
31 words
An image stabilization apparatus according to claim 3, wherein said control means includes low frequency range responsive means for acting when the vibration acting thereon is of a low frequency range.
Claim 7
Dependent Claim
23 words
An image stabilization apparatus according to claim 3, wherein said control means includes inhibiting means for preventing it from acting during the photographing.
Claim 8
Dependent Claim
57 words
An image stabilization apparatus according to claim 1, wherein said controlling means includes means for controlling the driving acceleration of said driving means in response to the approach of said correcting optical means to the follow-up limit acceleration for said driving means and rendering the driving acceleration of said driving means suppressible within said follow-up limit acceleration.
Claim 9
Dependent Claim
20 words
An image stabilization apparatus according to claim 5, wherein said low frequency range responsive means includes a first-order low-pass filter.
Claim 10
Dependent Claim
51 words
A camera including an image stabilization apparatus including: (A) correcting optical means for compensating image vibration; (B) driving means for driving said correcting optical means; and (C) controlling means for controlling the action of said driving means in response to the approach of the driving limit of said correcting optical means.
Claim 11
Dependent Claim
51 words
A camera including an image stabilization apparatus including: (A) correcting optical means for compensating image vibration; (B) driving means for driving said correcting optical means; and (C) controlling means for controlling the action of said driving means in response to the approach of the driving limit of said correcting optical means.
Claim 12
Dependent Claim
38 words
A camera according to claim 9, wherein said controlling means includes velocity decreasing means for decreasing the driving velocity of said driving means in response to the approach of said correcting optical means to a possible displacement limit
Claim 13
Dependent Claim
52 words
A camera according to claim 9, wherein said controlling means includes control means for controlling the driving of said driving means in response to the approach of said correcting optical means to a possible displacement limit so that said correcting optical means is displaced to the middle of a possible displacement zone.
Claim 14
Dependent Claim
17 words
A camera according to claim 11, wherein said control means is designed to act slowly and continuously.
Claim 15
Dependent Claim
29 words
A camera according to claim 11, wherein said control means includes low frequency range responsive means for acting when the vibration acting thereon is of a low frequency range.
Claim 16
Dependent Claim
21 words
A camera according to claim 11, wherein said control means includes inhibiting means for preventing it from acting during the photographing.
Claim 17
Dependent Claim
55 words
A camera according to claim 9, wherein said controlling means includes means for controlling the driving acceleration of said driving means in response to the approach of said correcting optical means to the follow-up limit acceleration for said driving means and rendering the driving acceleration of said driving means suppressible within said follow-up limit acceleration
Claim 18
Dependent Claim
18 words
A camera according to claim 13, wherein said low frequency range responsive means includes a first-order low-pass filter.
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) | 1993-11-12 | 1994-05-14 | 1994-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-11-12 | 1998-05-14 | 1998-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-11-12 | 2002-05-14 | 2002-11-13 | $7700.00 | Window Closed / Lapsed |