Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.


  1. Advanced Patent Search
Publication numberUS1550197 A
Publication typeGrant
Publication date18 Aug 1925
Filing date6 Jun 1923
Priority date6 Jun 1923
Publication numberUS 1550197 A, US 1550197A, US-A-1550197, US1550197 A, US1550197A
InventorsBerry Edward R
Original AssigneeGen Electric
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Radiation projector
US 1550197 A
Abstract  available in
Previous page
Next page
Claims  available in
Description  (OCR text may contain errors)

Aug. 15, 1925. 1,550,197

E. R. BERRY RADIATION PROJECTOR Filed June 6, 1923 Invent-o5 faward E Ber/Ty.

.Malden, in the county of Middlesex,

Patented Aug. 18, 1925.



RADIATION rnoancron.

Application filed June 6, 1923. Serial No; 643,785.

To. all whom it may concern:

Be it known that I, EDWARD R. BERRY, a citizen of the United States, residin at tate of Massachusetts, have invented certain new and useful Improvements in Radiation Pro: jectors, of which the following is a specification. v

The present invention comprises a method of conveying light and is embodied in an improved conductor 'or projector which utilizes-the light-conducting properties of quartz for conveying light through a curved path. l

Although my invention may have various useful applications, it is of particular utility in therapy when it is desired to subject areas to radiation which are not accessible to direct radiation from a lamp.

My invention utilizes the peculiar property of quartz of conducting light with very little loss through a curved or otherwise non rectilinear path. The preferred embodiment of my invention comprises a conductor for light comprising a plurality of quartz members abutting each otherand held in movable relation.

Fig. 1 illustrates a quartz conductor made closing sheath in part removed; Fig. 3 is an end elevation; Fig. 4 shows several quartz ,members of an applicator in separated rela- 5 comprises a plurality of quartzv members tion; and Fig. 5 shows the applicator in a bent position. v

The device shown in detail in Figs. 2 to 6, 7, 8, 9 and 10, fittedat their ends by ball and socket joints and surrounded by a sheath or retainer 11 consisting of a suitable flexible or yieldable material, for example, rubber.

' The end member 6 maybe pointed if desired,

or have any desired shape. The balland socket joints permit bending within limits to' arious desired configurations as shown in s The member-which receives the light, as member 10, may have a flat exposed end face to receive the light as shown in Fig. This figure shows the conductor in assembled relation to a suitable lamp 12 constituted for example, by a vapor arc lamp having a mercury cathode 13 an anode 14, and electric terminals 15, 16. Other desired lamps may be used. The heat from the lamp may be absorbed by a layer of water or other absorbing medium 17 which is confined by a suitable enclosure containing a window 18, conveniently consisting of quartz. Although particularly ultraviolet radiations are conducted b the combinationsshown in Fig. 1, I wishat to be understood that my invention is of eneral utility'for conveying radiations w hether visible or invisible.

When it is desired to project ultraviolet light, for example, into a wound or body cavity which is inaccessible to 'direct rays from a lamp, the applicator constituting my invention may be inserted in any convenient bent position to reach the arts to -be rayed for the therapeutic or o servational purposes, and the light will travel the length of the same, being carried around bends and finally emitted at the free end.

What I claim as new and desire to secure by Letters Patent of the United States, is

1. A radiation conducting device comprisin a plurality of members which are capa 1e of conductin light or other radiation and which are jointed end to end and a flexible'holder therefor.

2. A light or radiation conducting device comprising a plurality of members of quartz assembled end to end and being fitted to one another by ball and socket joints and means for holding said members in abutting relation.

3. A projector for light comprising a plurality of inembers of light-conducting material fitted to one another by ball and socket joints and arranged in movable relation, and a holder therefor.

4. A hoto. therapeutic device comprising a plura ty of jointed members consisting of silica and a sheath of yieldable material for EDWARD R. BERRY.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2420716 *4 Nov 194420 May 1947Rca CorpReading aid for the blind
US2424064 *13 Jul 194415 Jul 1947Bausch & LombIlluminating device
US2644113 *22 May 195030 Jun 1953Walter V EtzkornLuminous body
US2659017 *12 Feb 195110 Nov 1953Bartow Beacons IncRay directing device
US2897388 *18 Jul 195528 Jul 1959Goodman David MDirected ray tube and the like
US2932294 *10 Oct 195512 Apr 1960Centre Nat Rech ScientLighting devices for endoscopes
US2936753 *22 Jan 195717 May 1960Storz KarlEndoscope
US2941457 *15 Sep 195421 Jun 1960Rca CorpApparatus for use in the manufacture of mosaic screens for color-kinescopes, etc.
US3012463 *17 Aug 195912 Dec 1961Krivit Lawrence RExamining device
US3042022 *25 May 19593 Jul 1962Bausch & LombIllumination means for diagnostic instrument
US3051166 *1 Dec 195928 Aug 1962Avco CorpEndoscope
US3071038 *2 Jun 19591 Jan 1963Honeywell Regulator CoApparatus to accurately and continuously measure changes occurring in the specific gravity and composition of a fluid
US3126788 *14 Dec 196131 Mar 1964 Projection screens
US3257902 *14 Jul 196028 Jun 1966Watson W & Sons LtdOptical system having cylindrical rod-like lenses
US3679906 *25 Mar 197025 Jul 1972Xercon IncLight-operated control device
US4979900 *17 Nov 198825 Dec 1990Sumitomo Electric Industries, Ltd.Root canal sterilization method
US5803729 *17 Jul 19968 Sep 1998Efraim TsimermanCuring light
US5989246 *29 Jun 199323 Nov 1999Kaufmann; RaimundProbe for heating body tissue
US20050180140 *7 May 200318 Aug 2005George David S.Intense pulsed light devices
WO1994000194A1 *29 Jun 19936 Jan 1994Raimund KaufmannProbe for heating body tissue
U.S. Classification607/93, 359/358, 362/577, 362/572, 136/259, 250/505.1
International ClassificationA61N5/06
Cooperative ClassificationA61N5/0603
European ClassificationA61N5/06B4