Disposable single-use camera with lens shade

Abstract: In a disposable single-use camera (1) comprising an inner camera shell (3) pre-loaded with film and an outer paper pack (9) which substantially encloses the camera shell, a lens shade (25) connected to the shell overlies the paper pack at the perimeter (P) of an opening (11) in the pack for the taking lens. Thus, the paper pack (9) is secured flatly in place between the camera shell (3) and the lens shade (25) to prevent the pack from shifting into the field of view of the taking lens or bowing away from the shell.

Description: The invention relates generally to the field of photography, and more particularly to a disposable single-use camera. Recently, a disposable single-use 35mm camera referred to as the "Quick Snap" was introduced by Fuji Photo Film. Co. Ltd., and another disposable single-use 35mm camera referred to as the "Fling 35" was introduced by Eastman Kodak Co. The former is described in GB-A-2 196 136, the latter in US-A-4,801,957. Generally, each disposable camera is a point-and-shoot type and comprises (1) a plastic inner camera shell which houses a taking lens, a film metering mechanism, and a shutter and (2) a paper-cardboard outer sealed pack which contains the inner camera shell and has respective openings for the taking lens and for a shutter release button, a frame counter window, a film advance thumbwheel, and a simple see-through viewfinder, located on the inner camera shell. At the manufacturer, the camera shell is loaded with a conventional 24-exposure 35mm film cartridge, and substantially the entire length of the unexposed filmstrip is factory prewound from the cartridge into a supply chamber of the camera shell. After the customer takes a picture, the thumbwheel is manually rotated to rewind the exposed frame into the cartridge. The rewinding movement of the filmstrip the equivalent of one frame rotates a metering sprocket to decrement a frame counter to its next lower numbered setting. When substantially the entire length of the filmstrip is exposed and rewound into the cartridge, the single-use camera is sent to a photofinisher who first removes the inner camera shell from the paper-cardboard sealed pack and then removes the filmstrip from the camera shell. The filmstrip is processed, and the camera shell and the opened pack are thrown away. According to the invention there is provided an improved disposable single-use camera wherein (a) a rigid inner camera shell is pre-loaded with film and has a taking lens opening and (b) an outer paper pack contains the camera shell and has a larger opening for substantially revealing the taking lens opening, and wherein the improvement comprises: a lens shade adapted to overlie said paper pack at the perimeter of said larger opening and to substantially reveal said taking lens opening; and coupling means arranged on said camera shell and said lens shade for connecting the shell and the shade intimately to secure said paper pack sandwiched in place between the two, to prevent the paper pack from shifting or bowing relative to the shell. The foregoing design is believed to be an improvement over the prior art because by preventing the outer paper pack from shifting or bowing relative to the inner camera shell the paper pack cannot move into the field of view of the taking lens or move to interfere with any of the manually operated elements protruding from the camera shell. FIG. 1 is an exploded perspective view of a disposable single-use camera with a lens shade, according to a preferred embodiment of the invention; and FIG. 2 is a sectional view of the lens shade and a front portion of the disposable camera, depicting the manner in which the two are connected. The invention is disclosed in connection with a 35mm camera. Because such a camera is widely known, this description is directed in particular to photographic elements forming part of or cooperating directly with the invention. It is to be understood, however, that other elements not specifically shown or described may take various forms known to persons of ordinary skill in the art. Referring now to the drawings, FIGS. 1 and 2 depict a disposable single-use camera 1. The disposable camera 1 is a point-and-shoot type and comprises (i) an inner camera shell 3 which has a front lens opening 5 for an internally supported wide-angle taking lens 7 and houses a film metering mechanism and a single blade shutter (not shown), and (ii) an outer sealed pack 9 which contains the camera shell, has a rectangular-shaped front opening 11 substantially revealing the lens opening, and has a top opening 13 for a manually depressible shutter release button 15 on the top of the shell, a top opening 17 for a frame counter window 19 on the top of the shell, a rear opening for a manually rotatable film advance thumbwheel (not shown) at the rear of the shell, and a cut-away 21 for direct see-through front and rear viewfinder sights integrally formed with the shell. Only the front sight 23 is illustrated. The outer sealed pack 9 is decorative in nature and is constructed of a paper-cardboard material. The inner camera shell 3 is constructed of a rigid plastic black-color substance. At the manufacturer, the inner camera shell 3 is loaded with a conventional 24-exposure 35mm film cartridge and substantially the entire length of the unexposed filmstrip is factory prewound from the cartridge onto a take-up spool (not shown) in the camera shell. After the customer takes a picture by depressing the release button 15, the thumbwheel is manually rotated to rewind the exposed frame into the cartridge. The rewinding movement of the filmstrip the equivalent of one frame rotates a metering sprocket (not shown) to decrement a frame counter (not shown) to its next lower numbered setting. When substantially the entire length of the filmstrip is exposed and rewound into the cartridge, the single-use camera 1 is sent to a photofinisher who first removes the inner camera shell 3 from the outer paper pack 9 and then removes the filmstrip from the camera shell. The filmstrip is processed, and the camera shell 3 and the opened pack 9 are thrown away. According to the invention, an outwardly flared lens shade 25 is dimensioned to overlie the outer paper pack 9 at the perimeter P of the front opening 11 in the pack, and it has a central opening 27 for substantially revealing the front lens opening 5 of the inner camera shell 3. Specifically, as shown in FIG. 1, the lens shade 25 is dimensioned to overlie the paper pack 9 along two parallel relatively long portions 29 and 31 of the perimeter P and to extend within the front opening 11 substantially adjacent two parallel relatively short portions 33 and 35 of the perimeter P. Coupling means for manually snap-connecting the inner camera shell 3 and the lens shade 25 preferably is in the form of (i) two front securement cavities 37 and 39 arranged in the camera shell 3 at either side of the lens opening 5 to be accessible through the front opening 11 at respective locations substantially adjacent the two short portions 33 and 35 of the perimeter P and (ii) two prong-like extensions 41 and 43 of the lens shade 25 adapted to extend through the front opening into the respective cavities as shown in FIG. 2. The coupling means serves to connect the camera shell 3 and the lens shade 25 intimately to secure the paper pack 9 sandwiched flatly in place between the two, to prevent the pack from shifting into the field of view of the taking lens 7 or bowing away from the shell. Moreover, the coupling means allows the camera shell 3 and the paper pack 9 to be assembled (i.e. the shell within the pack) before connecting the lens shade 25 to the shell. The invention has been described with reference to a preferred embodiment. However, it will be appreciated that variations and modifications can be effected within the ordinary skill in the art without departing from the scope of the invention.

Claims: A disposable single-use camera (1) wherein a rigid inner camera shell (3) is pre-loaded with film and has a taking lens opening (5) and an outer paper pack (9) contains said camera shell and has a larger opening (11) for substantially revealing said taking lens opening, is characterized by including: a lens shade (25) adapted to overlie said paper pack (9) at the perimeter (P) of said larger opening (11) and to substantially reveal said taking lens opening (5); and coupling (37, 39, 41, 43) means arranged on said camera shell (3) and said lens shade (25) for connecting the shell and the shade intimately to secure said paper pack (9) sandwiched in place between the two, to prevent the paper pack from shifting or bowing relative to the shell. A camera (1) as recited in Claim 1, wherein said coupling means (37, 39, 41, 43) includes respective engagement means (41, 43) arranged on said camera shell (3) and said lens shade (25) for enabling the two to be manually connected even though the shell is contained within said paper pack (9). A camera (1) as recited Claim 1 or 2, wherein said coupling means (37, 39, 41, 43) includes securement cavities (37, 39) arranged in said camera shell (3) at either side of said taking lens opening (5) to be accessible through said larger opening (11) and prong-like extensions (41, 43) of said lens shade (25) adapted to extend within the larger opening into the respective securement cavities. A camera (1) as recited in Claims 1 to 3, wherein said lens shade (25) is adapted to overlie said paper pack (9) along a relatively long portion (31) of the perimeter (P) of said larger opening (11) and to extend within the larger opening substantially adjacent a relatively short portion (33) of its perimeter. A camera (1) as recited in Claim 4, wherein said coupling means (37, 39, 41, 43) includes first engagement means (37, 39) arranged on said camera shell (3) to be accessible through said larger opening (11) at a location substantially adjacent said relatively short portion (33) of its perimeter (P) and second engagement means (41, 43) arranged on said lens shade (25) to extend through the larger opening to engage with said first engagement means.

Inventors: GODDARD WILLIAM HARVEY C O EAS, LYON RALPH MERWIN C O EASTMAN, VANDEMOERE ALAN VICTOR C O EAS, GODDARD, WILLIAM HARVEY, C/O EASTMAN KODAK COMPANY, LYON, RALPH MERWIN, C/O EASTMAN KODAK COMPANY, VANDEMOERE, ALAN VICTOR, C/O EASTMAN KODAK COMPANY
Applicants: EASTMAN KODAK CO, EASTMAN KODAK COMPANY
Application year: 1990
Main classification: G03B17
IPC codes: G03B17, G03B19, G03C3, G03B11