Patent US4933694A successfully refreshed from Google Patents.
US4933694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Camera view finder
Assignee: Eastman Kodak Co
•
Filing: 1988-10-07
•
Granted: 1990-06-12
•
Expires: 2008-10-07
Abstract
Abstract A camera view finder comprises three separate lenses for producing images corresponding to desired pseudo effects. The lenses are mounted in parallel frames which are supported for rectilinear movement. A cam means is provided to selectively position the frames into a viewing position.
Inventors
- 👤 Richard A. Gates
- 👤 Jeffrey R. Stoneham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:28
CPC Classifications
G; G03; G03B; G03B13/00; G03B13/02; G03B13/10; G03B13/12
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
88 words
Apparatus for selectively positioning one of a plurality of lenses into an optical path, said apparatus comprising: first, second and third lens frames each adapted to support a lens; means for supporting each of said frames for independent rectilinear movement between a first position where it is out of the optical path and a second position where it is in the optical path; and cam means for simultaneously moving one of said lens frames to its second position and the other of said frames to their first positions.
Claim 2
Dependent Claim
88 words
Apparatus for selectively positioning one of a plurality of lenses into an optical path, said apparatus comprising: first, second and third lens frames each adapted to support a lens; means for supporting each of said frames for independent rectilinear movement between a first position where it is out of the optical path and a second position where it is in the optical path; and cam means for simultaneously moving one of said lens frames to its second position and the other of said frames to their first positions.
Claim 3
Dependent Claim
43 words
Apparatus as claimed in claim 1 wherein said cam means comprises pins extending from said frames and means for simultaneously moving said pins to position one of said frames to its second position and the other of said frames to their first positions.
Claim 4
Dependent Claim
27 words
Apparatus as claimed in claim 2 wherein said means for simultaneously moving said pins comprises a plate having three cam slots for receiving said cam pins respectively.
Claim 5
Dependent Claim
61 words
Apparatus as claimed in claim 3 wherein said plate has a central position wherein one of said frames is in the optical path and is moveable in one direction to a second position to position another frame in the optical path and in the opposite direction to a third position to position still another of said frames in the optical path.
Claim 6
Dependent Claim
31 words
Apparatus as claimed in claim 4 wherein said frames are positioned in substantially parallel planes and said supporting means comprises a structure for moveably supporting said frames in said parallel planes.
References Cited (Backward Citations)
US2187246A
Cited
US2653528A
Cited
US3212422A
Cited
US3490844A
Cited
US3836934A
Cited
US3936150A
Cited
US4038673A
Cited
US4104663A
Cited
US4195924A
Cited
US4256396A
Cited
US4277158A
Cited
US4204760A
Cited
US4357102A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |