USRE16882E - Chaules francis jekkuts - Google Patents

Description

Feb. 14, 1928.

grvuwwtoz aum/M4,

' 00' ered with named Feb. 14, 192s.

UNITED STATES l' PATENT OFFICE.

l V"name vision original no. 1,sao, 4ea,.aatea umn 17, .1825, semi no. 108,531, med prix as, 1924. application for -reisme med Karon' 15,

This invention relates to that'class of instrumentsfemployed in vradio vision, i. e., lin the reception of radio si als representing active scenes, broadcast from some diso tant sending station; and' has for its main object' the association' of such partsas permit high speed and the'required number of lines per inch for uality in the reproduction.

In the drawing igure 1 is an elevation` of the instrument, and Figure 2 a sectional view; in both of which 1 is a supporting arm; 2 a prismatic plate` (the subject of Patent No. 1,385,325) 3 a perforated dischaving lens 4, 4', 4", etc., mounted thereon.

i -l The lens disc 3 ismountedon the sha-ft 5, fonthe oppositel end of which a rA 6 lis fastened. .Gea-r 6 engages with a argergear 7 on the lshaft 8j togetherl wth'the gear 9,

which latter.' meshes withv the gear 10 on the sleeve shaft 11 upon which latter-the prismatic disc is carried, the gear sizesfbein such as to lmultiply the rotative speed` o lens disc 3 over the prism vdisc 2. On the upper end of the arm la lantern 12 is sup ported, enclosing lamp 13, which 1s attached to a suitable radio set 14. .-15 is a .crank by which the mechanism may be rotated. `16 is.

a screen upon `which the picture appears.

through the -lens 4 onto thescreen l16 as a oint of light 17. TheI movement of the ens, by reason of `the vrotation of-'the disc;

to right (Fig. 1)in an .arc across the screen 16, and as the light beam'passes tnrouglrthe prism 2 it is deflected romthe centraline of the optical system and travels across the screen near the top. The following lens does,

exactly the same thing, that is, it makes the 40 spot of li ht move across the screen from left to rig t, as does every other succeeding lens. These vlinesof light would all fall in the same place except for the fact that the rismatic ring is rotating and, therefore,

'ecause the prism, radial in a horizontal direction until with one turn of the prism (2) the screen-has been 'covarallel lines from top to bottom, the lines' eingmade by the lenses, and their disposition onthe screen determined by the pnsmatic ring or plate or'disc.

considerea be hind each lens is angularly less,}the.lines of light on the screen vlie-adjacent and parallel 1927. Serial No. 175,820.

As each lens makes its own individual line and does not repeat until the lens dise has made one complete circle, the first lens con- `s'itlered will make the first line, the 13th line,

-the 25th line, etc., while'thc .next Vlens will make the 2nd line, the 14th line, the 26th line, etc. The number, of lines over lthe whole screenis, therefore, determined by the number of lenses on the disc multiplied by "zo A and decreases the intensity lof the light 1 'source (13), obviously the brilliancy ofthe spot -on the screen is determined. by the tion of the mechanism is in-'synchronism sending station; and the incomin' s1 ls represent lin their strength the lig t value of the picture at the sending station,'it will strength of the incoming radio signals at the moment considered. If, therefore, the rotaso I readily be seen, that the picture on' the The filament of the lamp' 13 1s imaged scene in front of the lens at the sending sta- ;t'ion', assuming the speed ofthe' tfwo ma# chines' to be vsuch thatby reason of persistcauses this point of light to move from leftj;

Whole of the picture allof lthe time;

.It' wilLbe apparent to one skilled in the artythat the operation of my invention is reversible, that is, the .apparatus shown may be used as a 'scanner for analyzing a picture situatedat 16 and translating the successive light variations into-like electrical currentQ variations 'by substituting); for lamp v13 a light sensitive cell.

j Of course, I dofnot wish to limit myself to circularly moving lenses .or' to a lcircular rism as-itis quite ,obvious that'othercomf inations of lenses ,and lafconstantly angu f y-larly-changing ,prism may be employed ence of-vision the eye is deceived into the *belief that it is looking at the without ldeparting from the spirit of my invention.

. It will beunderstood that crank 15 is merely symbolic of any suitable means for rotating the mechanism, and that suitable meansI is provided formaintaining vsuch driving `means in chronism with the mechanism at-the sen ing station.

What I claim is:

1. The combination of a prismatic disc' and a lens disc, and means for ro tatin one infront of the other.

2. he combination of a prismatic disc and a lens-carrying disc, and connecting means for rotating one disc in .front of th other'hand at diiering speeds. f

3. e combination of a series of lenses', means for passing a pencil of. light through said lenses vin succession', a prism through which the light cil also passes, and meansfor changing t e' langle'between the faces of the nsmat the point where theflight passes erethrough.I

` 4.' The combination' ofva prismatic disc,V

a lens-carrying v shaft'.

.a sleevemounting for same,

disc, a .shaft-mountin therefor.' said aupportedinside said eeve, and a gear conf -nectlon between to give kthe sleeve and shaft different rates of rotation.

15. The combination of a stationary. pictui-'eA surface, a stationary light" translatingdevice, means comprising a lensfor forming images of said stationary' elements each upon 7.,v combination, a stationary picture sur.-

the other meanslfrv moving said image#v :forming 'evice to causethe images to successively traverse the stationary e1ements ,a

throlh .whichthe light paslses'a'ndl means Vfor anging the ang e between the faces of the prism for causing successivev traversals to cross said elments'by different paths.'

6'. surface, a stationary light translating device,

a'.- movable lens for forming a beam of light and causing it totraversesaid surface suc- Vceively, a prism through which the beam 2 and means forvchanging the een the faces of the prlsm for surface by 'diferent paths. f

-'rotatable light distributin between saidsurface 'and light, said member In combination, a stationary picture I. vvsuccessive traversals-to cross'said'. i l

. ienne l (face, a stationary light source, a plurality of movable lenses or fonning beams. of

-light from said sourceand causing them to traverse said surfacevfsuccessively,v a prism through whichv the beamsof light pass commoh to said lenses, and means forchanging the angle between the faces of the prism for causing successive beams to cross said surface by different paths. l

8. The combination of .a stationary picture surface', avst'ationary source of light,

`a `rotatable light distributing( memberhaving mounted thereon a plurality of lenses for causing a` succession of beams of light to traverse saidsurface, 'a prism through' which the beams of light pass ycommon tov said'Y lenses, and means for changing the y angle between the faces of thepprism-forv'A successive beams to cross said sur-v causing y 4 different paths.;

face y x 9. he combination of a- 'stationary` pic# 'tlre surface, a lstationa vsource oflight, a

being provided .with a .plurality of. apertures to cause asuccession-ofbeams of light member located 1 'l to traverse said surfacefa; prism'tfhrough i which the beams:v of'lifght common to ,l

'Hil

said apertures', and means vor 'changing the angle between' the faces'` lof the prism. to`

cause'suc'cessive beams totraverse. the sur- Y' face lby 'diie'rent patlis'.-' 10. The.' combination ofal stationary picture surfP- Stiltioliaiiylight translating enses for. forming.

f. `langle between liagfe'.:A plane by diffsignature. RANCIS JENKINS.'

'aj prism through. mon to said lenses.

partsjon the'other i l Y' ans lfor moving said is fo.` .causing successive

Images