US4707106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multiple format camera and accessory
Assignee: Polaroid Corp
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Filing: 1986-03-03
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Granted: 1987-11-17
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Expires: 2006-03-03
Abstract
Abstract Photographic apparatus including a camera and a masking accessory kit in which the camera may be adjusted between a fully automated single-image format mode and a multiple-image format mode for use with the masking accessory kit. The kit includes a plate-form adapter attachable in fixed relation to the camera so that adapter openings register in obstructing fashion with the camera objective and viewfinder lenses. The adapter is designed to support each of a plurality of masks in at least two positions whereby separate areas of a single film frame may be successively exposed to separate light images.
Inventors
- 👤 Bruce K. Johnson
- 👤 Juan Estevez
- 👤 Robert M. Goward
- 👤 George D. Whiteside
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:51
CPC Classifications
G; G03; G03B; G03B17/00; G03B17/24; G03B17/02; G03B17/12; G03B2217/00; G03B2217/24; G03B2217/241; G03B2217/248
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
166 words
In photographic apparatus including a camera having an objective aperture and an automated exposure and film transport system operable normally to expose the image frame of a single film unit to a single light image, the improvement comprising in combination: manually operated override means accessible on the camera exterior for altering camera operation between a normal automated single-image format mode and a multiple-image format mode; and a masking accessory kit including an adapter mountable on the camera in fixed relation to the objective aperture, at least one mask adapted for multipositional support by said adapter, and means for establishing at least two positions of said mask in said adapter and relative to the camera objective aperture, said automated exposure and film transport system including directional photosensitive means spaced from said exposure aperture, and said adapter comprises at least a transparent portion to lie in the path of said photosensitive means and diffuse light passing thereto as so to diminish the directional response of said photosensitive means.
Claim 2
Dependent Claim
166 words
In photographic apparatus including a camera having an objective aperture and an automated exposure and film transport system operable normally to expose the image frame of a single film unit to a single light image, the improvement comprising in combination: manually operated override means accessible on the camera exterior for altering camera operation between a normal automated single-image format mode and a multiple-image format mode; and a masking accessory kit including an adapter mountable on the camera in fixed relation to the objective aperture, at least one mask adapted for multipositional support by said adapter, and means for establishing at least two positions of said mask in said adapter and relative to the camera objective aperture, said automated exposure and film transport system including directional photosensitive means spaced from said exposure aperture, and said adapter comprises at least a transparent portion to lie in the path of said photosensitive means and diffuse light passing thereto as so to diminish the directional response of said photosensitive means.
Claim 3
Dependent Claim
26 words
The photographic apparatus of claim 1 wherein said camera includes exposure adjustment means to compensate for diffusion of light by said transparent portion of said adapter.
Claim 4
Dependent Claim
187 words
A multiple exposure accessory kit for a photographic camera having an objective lens, a viewfinder lens and a photocell presented at a forwardly facing exterior camera wall, said kit comprising: a set of opaque masks, each of said masks having at least one objective lens window, at least one viewfinder lens window, and at least one photocell window, each of said lens windows being of a configuration to block light from corresponding masked portions of said objective lens and of said viewfinder lens and to pass light through corresponding unmasked portions of said objective lens and of said viewfinder lens; a plate-like adapter of a configuration to overlie said exterior camera wall, said adapter having openings to register in unobstructing fashion with said objective lens and said viewfinder lens; means for fixing the position of said adapter on said exterior camera wall with said openings in registry with said lenses; and means on said adapter for receiving each of said masks and for fixing each of said masks in at least two positions in which at least one photocell window is in unobstructing registration with said photocell.
Claim 5
Dependent Claim
187 words
A multiple exposure accessory kit for a photographic camera having an objective lens, a viewfinder lens and a photocell presented at a forwardly facing exterior camera wall, said kit comprising: a set of opaque masks, each of said masks having at least one objective lens window, at least one viewfinder lens window, and at least one photocell window, each of said lens windows being of a configuration to block light from corresponding masked portions of said objective lens and of said viewfinder lens and to pass light through corresponding unmasked portions of said objective lens and of said viewfinder lens; a plate-like adapter of a configuration to overlie said exterior camera wall, said adapter having openings to register in unobstructing fashion with said objective lens and said viewfinder lens; means for fixing the position of said adapter on said exterior camera wall with said openings in registry with said lenses; and means on said adapter for receiving each of said masks and for fixing each of said masks in at least two positions in which at least one photocell window is in unobstructing registration with said photocell.
Claim 6
Dependent Claim
20 words
The accessory kit of claim 3 wherein said adapter is transparent and covers the photocell to reduce directional sensitivity thereof.
Claim 7
Dependent Claim
46 words
The accessory kit of claim 3 wherein said masks are generally rectangular to establish opposite parallel edges and wherein said means on said adapter for receiving said mask comprises a generally rectangular recess defining opposed edges for slidably engaging said opposite parallel edges of said masks.
Claim 8
Dependent Claim
29 words
The accessory kit of claim 5 wherein the base of said recess is spaced inwardly of a pair of tabs positioned to overlie said parallel edges of said masks.
Claim 9
Dependent Claim
24 words
The accessory kit of claim 6 wherein one of said tabs is supported by a resilient arm carrying a detent behind said one tab.
Claim 10
Dependent Claim
26 words
The accessory kit of claim 7 wherein each of said masks includes at least two notches in said parallel edges for positional engagement by said detent.
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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) | 1990-11-16 | 1991-05-18 | 1991-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-11-16 | 1995-05-18 | 1995-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-11-16 | 1999-05-18 | 1999-11-17 | $7700.00 | Window Closed / Lapsed |