Photography – Having camera indicator – Film condition indicator
Reexamination Certificate
1999-11-19
2001-07-10
Perkey, W. B. (Department: 2851)
Photography
Having camera indicator
Film condition indicator
C116S213000, C116S298000, C116S302000, C359S436000, C359S890000, C359S889000
Reexamination Certificate
active
06259864
ABSTRACT:
FIELD OF THE INVENTION
The invention relates generally to the field of photography, and in particular to an exposure count indicator for a camera.
BACKGROUND OF THE INVENTION
Practically every camera that is available today includes an exposure count indicator. Typically, the exposure count indicator provides a visible indication of the number of frames that remain available to be exposed on a filmstrip in the camera, i.e. the current number of exposures that can be made on the filmstrip. Conversely, the exposure count indicator can provide a visible indication of the number of frames actually exposed on the filmstrip, i.e. the number of exposures actually made. In either case, the exposure count indicator includes a numerical scale of successive exposure count indicia that are evenly spaced from one another. The scale of indicia range from the number “1” which indicates either that only one frame remains available to be exposed on the filmstrip, or only one frame has been actually exposed, to a higher number which is the maximum number of exposures, for example “15”, “24” or “40”. See prior art U.S. Pat. No. 5,832,322 issued Nov. 3, 1998.
THE CROSS-REFERENCED APPLICATION
The cross-referenced application discloses a camera having a rear cover part, and a rotatable counter dial with a numerical scale of exposure count indicia to be successively viewed. Each of the indicia has the same color. A label on the rear cover part is superimposed to the counter dial and has the same color as the indicia to render the indicia invisible in order to prevent them from being viewed. The label includes a viewing portion that is not the same color as the indicia and is arranged to be superimposed successively to the indicia when the counter dial is rotated. As a result, the indicia are made successively visible in order to permit them to be successively viewed. Eye-readable information is imprinted on the label, and the counter dial is transparent to permit the information to be visible through the counter dial in order to be read.
SUMMARY OF THE INVENTION
An exposure count indicator comprising a numerical scale of exposure count indicia to be successively viewed, is characterized in that:
each of the indicia has the same color;
a color-absorbing optical filter is superimposed to the indicia and has a color that absorbs the color of the indicia to render the indicia invisible in order to prevent them from being viewed through the filter when light is reflected from the indicia to the filter, and includes a viewing portion that does not absorb the color of the indicia to allow only one of the indicia which is superimposed to the viewing portion to be visible through the viewing portion in order to permit that indicia to be viewed; and
the indicia and the filter are supported for movement of one relative to the other for the indicia to be successively superimposed to the viewing portion, whereby the indicia can be successively viewed through the viewing portion.
REFERENCES:
patent: 1218082 (1917-03-01), Hall
patent: 1285753 (1918-11-01), Lowenstein
patent: 1422527 (1922-07-01), Berger
patent: 2548530 (1951-04-01), Harvey
patent: 2588054 (1952-03-01), Smith
patent: 2619932 (1952-12-01), Brewster
patent: 2621866 (1952-12-01), Harvey
patent: 2652209 (1953-09-01), Hodges
patent: 2792744 (1957-05-01), Hirsch
patent: 2917981 (1959-12-01), Sewig
patent: 3166672 (1965-01-01), Gardner
patent: 3174231 (1965-03-01), Schure
patent: 3248050 (1966-04-01), Dickson
patent: 3388490 (1968-06-01), Stechemesser
patent: 4268150 (1981-05-01), Chen
patent: 5005035 (1991-04-01), Pagano
patent: 5832322 (1998-11-01), Zawodny et al.
Eastman Kodak Company
Fields Roger A.
Perkey W. B.
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