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Publication numberUS2397272 A
Publication typeGrant
Publication dateMar 26, 1946
Filing dateDec 4, 1942
Priority dateDec 4, 1942
Publication numberUS 2397272 A, US 2397272A, US-A-2397272, US2397272 A, US2397272A
InventorsEdwin H Land
Original AssigneePolaroid Corp
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Identification badge
US 2397272 A
Abstract  available in
Images(1)
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Claims  available in
Description  (OCR text may contain errors)

March 26, 1946; E. H. LAND IDENTIFICATION BADGE Filed Dec. 4, 1942 INVENTOR. BY jl w 4 Patented Mar. 26, 1946 IDENTIFICATION BADGE Edwin- H. Land, Cambridge, Mass., assignor to Polaroid Corporation, Cambridge, Mass., a corporation of Delaware Application December 4, 1942, Serial No. 467,860

5 Claims. (Cl. 88-65) This invention relates to an improved identification badge.

It is an object of the invention to provide a badge of the character described which can be readily and cheaply made, which is exceedingly difiicult to duplicate or counterfeit, and which immediately identifies the wearer.

Another object of the invention is to provide an identification badge comprising a light-polarizing photographic reproduction, and particularly a stereoscopic reproduction, of the owner of the badge, and in connection therewith means for enabling a guard or inspector to immediately determine the authenticity of the badge.

A further object is to provide a badge having the above advantages and comprising contrasting light-polarizing imagesfor example, a portrait of the wearer and some identifying indicia such as a numbercombined with means en abling a guard or inspector to determine immediately the authenticity thereof.

A still further object of the invention is to provide a badge of the character described bearing indicia designating the portion of the plant or building to which the wearer of the badge may have access, and other indicia indicative of the wearer's name or time clock number, and to provide such indicia in a manner permitting an inspector' or guard equipped with a suitable cooperating viewing device to determine immediately the authenticity of the badge and the wearers right, of access to the portion of the building or plant in which he may be.

Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprises an article of manufacture comprising the features of construction, combination of elements and arrangement of partswhich are exemplified in the following detailed description and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention, reference should be had to the following detailed description, taken in connection with the accompanying drawing,

which represents in perspective, with parts broken away, one embodiment of the invention.

The identification badge of the present invention is particularly adapted for use in plants or buildings where rigid inspection of the personnel is important, and where employees are limited in their right of access to predetermined portions of the plant or building. Situations of this kind have frequently arisen in cbnnectiori with industries engaged in war work. It has become important to provide employees with a badge or identification card which is diflicult or impossible to counterfeit, which immediately identifies the wearer, which designates on its face the portions of the plant or grounds to which he'is entitled to have access and which bears an identifying number, such for example as a department number and/or a time clock number.

A preferred embodiment of the invention, and that form shown in the drawing, comprises essentially a photographic reproduction of the face of the badge owner, together with indicia, such for example as a color band or stripe designating that portion of the plant to which the owner is entitled to have access, and other indicia, for example department number and a time clock number, which enable an inspector or guard to readily ascertain the name of the person wearing the badge and the department to which he belongs. The photograph of the wearer of the badge is reproduced stereoscopically in lightpolarizing material. This may be accomplished by taking a left eye and a right eye picture of the badge owner and reproducing the two images, preferably in substantially superimposed relation, one image being reproduced in d1- chroic light-polarizing material having its polarizing axis substantially perpendicular to the polarizing axis of the dichroic light-polarizing material in which the other image is reproduced. The dichroic polarizing images may preferably be formed in any suitably oriented transparent linear hydrophilic polymeric plastic material, in ways known in the art. A preferred material for use in the reproduction of such a sheet is polyvinyl alcohol.

The sheet receiving the photographic images may be either a single sheet having its surface molecules substantially oriented, the molecules of one surface being oriented in a direction substantially perpendicular to the molecules of the other surface, or it may be a composite sheet, as.

shown in the drawing, formed by bonding together two sheets l6, 12 of the plastic material, each of which has been stretched or otherwise treated to substantially orient its molecules, the

two sheets being bonded together with the directions of molecular orientation substantially perpendicular. In the preferred embodiment of the invention this sheet or composite sheet has its surface molecules oriented in directions perpendicular to one another and at angles of degrees ing drawing shall be interpreted as illustrative and not in a limiting sense. v

It is also to be understood that the following claims are intended to cover all the generic and specific features of the invention herein described, and all statements of the scope of the invention which. as a matter of language, might be said to fall therebetween,

What is claimed is:

1. An identification badge comprising, in combination, means providing substantially superimposed, right eye and left eye stereoscopic, lightpolarizing reproductions of a portrait of the badge owner, the transmission axes of said stereoscopic reproductions being substantially perpendicular, and means associated therewith and providing at least one light-polarizing identifying indicium having its transmission axis substantially parallel to the axis of one of said stereoscopic reproductions, and a colored dichroic lightpolarizing area having its transmission axis substantially parallel to the axis of the other said stereoscopic reproduction.

2. An identification badge comprising, in combination, means providing substantially superimposed, right eye and left eye stereoscopic, lightpolarizing reproductions of a portrait of the badge owner, the transmission axes of said stereoscopic reproductions being substantially perpendicular and at angles of 45 degrees to the edges of said badge, and means associated therewith and providing at least one light-polarizing identifying indicium having its transmission axis substantially parallel to the axis of one of said stereoscopic reproductions, and a colored dichroic light-polarizing area having its transmission axis substantially parallel to the axis of the other said stereoscopic reproduction.

3. An identification badge comprising, in combination, means providing substantially superimposed, right eye and left eye stereoscopic, lightpolarizn'ng reproductions of a portrait of the badge owner, the transmission axes of said stereoscopic reproductions being substantially perpendicular, and means associated therewith and providing at least one light-polarizing identifying indicium having its transmission axis substantially parallel to the axis of one of said stereoscopic reproductions, and a colored dichroic lightpolarizing area having its transmission axis substantially parallel to the axis of the other said stereoscopic reproduction, said indicia and said colored area being in substantially superimposed relation.

4. An identification badge comprising, in combination, means providing substantially superimposed, right eye and left eye stereoscopic, lightpolarizing reproductions of a portrait of the badge owner, the transmission axes of said stereoscopic reproductions being substantially perpendicular, means associated therewith and providing at least one light-polarizing identifying indicium having its transmission axis substantially parallel to the axis of one of said stereoscopic reproductions, a colored dichroic light-polarizing area having its transmission axis substantially parallel to the axis of the other said stereoscopic reproduction, and means providing a light-reflecting backing for said badge, said backing having a non-depolarizing surface in contact with said portrait-providing means.

. 5. An identification badge comprising, in combination, means comprising molecularly oriented transparent linear polymericplastic material having a dichroic stain incorporated therein and providing substantially superimposed, right eye and left eye stereoscopic, light-polarizing reproductions of a portrait of the badge owner, the transmission axes of said stereoscopic reproductions being substantially perpendicular, means associated therewith and providing at least one lightpolarizing identifying indicium having its transmission axis substantially parallel to the axis of one of said stereoscopic reproductions, and a colored dichroic light-polarizing area having its transmission axis substantially parallel to the axis of the other said stereoscopic reproduction.

EDWIN H. LAND.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2495703 *Sep 7, 1945Jan 31, 1950Dennis Albert EMeans for visual inspection by comparison with a series of threedimensional pictures
US2631496 *Aug 8, 1947Mar 17, 1953Rehorn Miles PStereoscopic viewing method and apparatus
US3218926 *Feb 4, 1959Nov 23, 1965Polaroid CorpMethod of forming light modifying display representations having differently oriented polarizing areas
US3313052 *Apr 29, 1965Apr 11, 1967Polaroid CorpLaminations
US3455577 *Apr 4, 1967Jul 15, 1969Eizo KomiyamaBanking system
US3511655 *Apr 29, 1965May 12, 1970Polaroid CorpLaminations
US3640009 *Sep 9, 1969Feb 8, 1972Eizo KomiyamaIdentification cards
US4175775 *Jan 11, 1978Nov 27, 1979Visual Methods, Inc.Access control system
US4222662 *Apr 4, 1979Sep 16, 1980Visual Methods, Inc.Access control system
US4568824 *Mar 3, 1983Feb 4, 1986Agfa-Gevaert AktiengesellschaftForgery-proof information carrier
US5101296 *May 22, 1990Mar 31, 1992Bill BellLight-polarizing mosaic pair
US5520417 *Aug 25, 1994May 28, 1996Kennemer; Michael S.Retroreflective animal identification tag
US5552182 *Jan 31, 1995Sep 3, 1996Rowland Institute For ScienceInking methods and compositions for production of digitized stereoscopic polarizing images
US5641289 *May 22, 1995Jun 24, 1997Sussman; Martin VictorTeaching and advertising tool
US5758036 *Jan 30, 1996May 26, 1998The Rowland Institute For ScienceProduction of improved digitized stereoscopic polarizing images
US5764248 *Jan 31, 1995Jun 9, 1998Rowland Institute For ScienceProduction of digitized stereoscopic polarizing images by ink jet printing
US6347851Jan 10, 2000Feb 19, 2002The Rowland Institute For ScienceInking methods and compositions for production of digitized stereoscopic polarizing images
DE1195057B *Sep 5, 1962Jun 16, 1965Moritz J FurtmayrPersonenfeststellungskartei
Classifications
U.S. Classification359/465, 283/77, 283/90, 40/1.5, 283/91, 273/148.00R, 355/40, 430/15, 40/427, 359/486.2, 359/487.2
International ClassificationG09F3/00
Cooperative ClassificationG09F3/00
European ClassificationG09F3/00