Card – picture – or sign exhibiting – Display card – Having a curved display panel
Patent
1975-07-18
1976-12-21
Pitrelli, John F.
Card, picture, or sign exhibiting
Display card
Having a curved display panel
40132R, G09F 1304
Patent
active
039979911
ABSTRACT:
A display device for decorative or advertising purposes capable of apparently converting a black and white image into a partially or entirely colored image when visible light is passed through a pair of adjacent translucent sheets. The first sheet contains an image which appears from an observation point forward of the first sheet as a black and white image in the absence of the visible light passing through the first sheet. The second translucent sheet located closely adjacent the first sheet contains at least a portion of the image on the first sheet and is at least partially colored so that when light passes through the pair of sheets, a colored image which is the optical combination of said first image and said second image is apparent from the observation point. In a preferred embodiment, the black and white sheet is made from a paper having photographic properties and is photographically negative. The second sheet is preferably photographically positive and is made from either a paper having photographic properties or from a transparent or translucent plastic material which may be manually colored or mechanically printed with translucent colored inks. In the alternative, the first sheet may be printed, for example, with translucent inks. The method of making the device is also disclosed.
REFERENCES:
patent: 518806 (1894-04-01), Dillmann
patent: 1282829 (1918-10-01), Hernandez-Mejia
patent: 1407498 (1922-02-01), Sutphen
patent: 1481607 (1924-01-01), Hiscocks
patent: 3163554 (1964-12-01), Gessler
patent: 3771245 (1973-11-01), Mabrey et al.
Hayman-Chaffey Charles R.
Hayman-Chaffey Frederick W.
LandOfFree
Display device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1831399