USRE18452E - Spiral mounted lens disk - Google Patents

Description

I May 3, 1932. c. F. JEIQYKINS I Re. 18,452

SPIRAL MOUNTED LENS DISK OI iginal Filed Jan. 2, 1925 Eanc/J 472/15 Ti a v INVENTOR BY ATTORNEYS.

' Reiuued May 3, 1932 UNITED STATES PATENT OFFICE CHARLES FRANCIS JENKINS, WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOB TO JENKINS LABORATORIES, OF WASHINGTON, DISTRICT OF COLUMBIA, A CORPORA- I IIION OF THE DISTRICT OF COLUMBIA srmnn MOUNTED LENS DISK Original No. 1,679,086, dated July 31, 1928, Serial No. 222, filed January 2, 1925. Application for reissue flied June 24, 1930.

This invention relates to apparatus for the of a speed which will cover the entire picture surface withinthe time of persistence of vision, say, one-twelfth on one-sixteenth of asecond.

With these invention consists of the novel details of construction and combination of parts more fully hereinafter disclosed and ed out in the claims.

Referring to the accompanyin drawings forming a part of this specification, Figure 1 is a front view of the lens carrier disk, and

particularly point- Figure 2 a schematic drawing showing how it is employed.

In the drawings A is a disk with a plurals ity of spirally arranged holes therein, over each of which a lens is mounted, as B, B,

B", etc. The diskis intended to be rotated between a spot-source of light L, and a picture surface or screen M, shownedge on.

When the lens B is in front of the light the image of the source strikes the screen near the top, as shown in full line; when the lens B is in position to project, the image will ap- 4 pear on the picture surface near the bottom,

as indicatedby the dotted line; when other lenses come into position to" project," the images fall in successively diflerent positions between theseextremes, I It will readily be understood that the rotation of the disk would cause the lenses to travel across the screen from side to side;

while the location of the lenses at different radial distances from the axis makes the lateral trips of each lens at different levels, so that thefwhole picture surface is scanned.

It will also be understood that the disk- -mounted lenses could just as well scan a picture surface to be sent as they scan a screen upon which the picture is put, without departing from the spirit of my invention.

atI claim is v 1. In combination, a stationary picture surand other objects in view the,

Serial No. 463,555.

face, a stationary light translating element, a rotatable disk interposed between said surface and said element, said disk being provided with a plurality of apertures of large dimensions as compared with an elementary area of the picture surface, and a spherical lens mounted in each aperture for imaging the picture surface and the light translating element each upon the other, said apertures and lenses being so arranged that upon rotation of the disk the lenses pass successively between said surface and said element, and successive'images. of the light translating element traverse the parallel paths.

2. In combination,a stationary light transpicture surface by ad acent lating element, and a scanning device consistan image in successive light spots of elemental area com rising means for producing a spot source 0 li ht, a rotatable scanner having a plurality o apertures for subdividing said beam into smaller beams having a cross section many times greater than that of an elemental light spot required for proper reproduction of the image at the plane of subdivision, and means associated with each aperture for separately collecting the light from each of said subdivided beams and imaging the spot source upon a picture receiving surface.

4. In an image producing system the combination of a spot source of light, a picture screen, a rotating disk, and means including i a plurality of light collecting and imaging devices spirally mounted on said disk'for collecting light from said spot source and imaging-it directly upon said picture'screen.

5. In a system for re roducing images in successive elemental light spots, the combination of a spot source of light, a picture screen, a rotating disk having apertures large as comparedwith said elemental light spots r 5 arranged in spiral sequence on said disk, a lens for each of said apertures rotatable with said disk for collecting the light from said spot source and projecting it directly upon said screen. a

6. The method of projecting enlargedimages on a picture screen which comprises producing-a 5 0t source of light, se arately col lecting an imagingthe light directly from said "source in an elemental spot upon" the screen, and moving the elemental spot over the surface of the screen toreproduce the image liy projection onsaid screen.. I v 7. n atelevision reproducing system, th

. combination of a spot light source,-a. spiral lens disk and-a screen upon which said spot, light source is directly imaged by the lenses in.

said disk.

g 8. In a television 5 stem, the combinationin optical sequence 0 a spot light sourcega rotatable disk u on which the light from said i f S pOt is'projecte directly,aplura1ity -of lenses carried, by said disk; and a screen 11' on which v .the spot light source is imaged directlylby saidlenses. v ,j: i 9. The method of televisually projecting an image on a screen which comprises pro:

. ducing a spot source of light,'rotating as. a I 7 unit a plurality of separate light collecting 3 and imaging devices in succession'lpast said source to image saidsource upon t e repro-j .7 g ,ducing screen, whereby said'image may be I g a 4 -plfqjectedzin( nlarged dimensions on said. screen. j r I j I c. A j In testimony whereof I havehereunto set my hand on this 28th day of May, 1930; a 4 CHARLES FRANCIS JENKINS.

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