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Publication numberUS838789 A
Publication typeGrant
Publication dateDec 18, 1906
Filing dateAug 11, 1905
Priority dateAug 11, 1905
Publication numberUS 838789 A, US 838789A, US-A-838789, US838789 A, US838789A
InventorsCharles J Klein
Original AssigneeRalph A Schoenberg
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 838789 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

N0. 888,789. PATENTED DEC. 18, 1906. 0. J. KLEIN REFLECTOR.



FIG. 3



No. 838,789. I PATENTED DEC, 18, 1906.







Specification of Letters Patent.

Patented Dec. 18, 1906.

Application filed August 11,1905. Serial No. 273.829v

To all whom it may concern:

Be it known that I, CHARLES J. KLEIN, a citizen of the United States, residing ingthe borough of Manhattan, in the city, county, and State of New York, have invented certain new and useful Improvements in Reflectors, of which the following is a specifica- 51011;

This invention relates to reflectors, and has for its object to provide a simple, inexpensive, and efficient device of this class particularly adapted for use in connection with incandescent electric lamps, which device may be readily attached to and detached from the lamp and which by effecting a highly efficient reflection shall not interfere with the general radiation of the light-rays projected in all directions from the lamp.

In the drawings, Figure 1 is a front end view of an incandescent-electric-lamp bulb provided with the improved reflector. Fig. 2 is a side view of the same. Fig.3 is a sectional view taken upon the line a: as, Fig. 2. Fig. 4 is a perspective view of a modified form of construction applied to an incandescent-electric-lamp bulb,and Fig. 5 is a detailed sectional view of the same.

Corresponding parts in all the figures are denoted by the same reference characters.

Referring with particularity to the drawings and to Figs. 1 to 3 thereof, 1 designates the improved reflector, which comprises a reflecting-body 2, formed to be supported directly upon the lamp-bulb 3, and positioning means 4 for maintaining the body 2 in proper operative position upon 'the lampbulb. In the preferred form of construction the reflecting-body 2 consists of a metallic annulus 5, which is provided with a plurality of spaced projecting fingers 6, the outer ends 7 of which project normally into contact one with the other. The annulus 5 is dished from its outer periphery 8 to its inner periphery 9, so as to form substantially an annular transverse section of a cone, and the inner ends 10 of the fingers 6 are connected with the annulus 5 adjacent to the inner periphery 9 of said annulus 5. The inner or dished surface of the annulus 5 is formed or provided with a polished or bright reflecting-surface 11, which is preferably radially corrugated, grooved, or ridged, as at 12. The fingers 6, which comprise the positioning means 4, are

of flexible electrically non-conducting material, such as hard fiber, and preferably taper from their inner to their outer ends to enable them tobe readily connected with or disconnected from the annulus 5 by passing each of the said fingers through a separate keeper or loop 13, which is formed upon or integral with the annulus 5 and projecting from the outer surface 14 of the annulus 5.

In applying the improved reflector to a lamp-bulb the annulus 5 is passed upon the lamp-bulb from the inner or small end of the latter, so that the inner periphery 9 of said annulus rests directly upon the lamp-bulb and in a plane at right angles to the longer axis of the lamp-bulb. In so passing the annulus constituting the body 2 upon the lamp-bulb the fingers 6 are relatively separated at their outer ends, and when the lampbulb is fitted into its socket said fingers at their outer ends contact with said socket or with the inner end of the lamp-bulb and prevent displacement of the body 2 upon the bulb, as clearly shown in Fig. 2. The fingers 6 being of small transverse dimension do not interfere materially with the radiation of the light at the outer or rearward side of the body 2, and said body being a substantially flat ring and only slightly dished does not itself materially interfere with the lateral radiation of the light from the lamp across both the inner and outer surfaces of said body. The inner reflecting-surface 1 1 of the body 2 effectually projects the light-rays forward or from the larger end of the bulb, greatly increasing the intensity of radiation of light in this direction.

Referring to Figs. 4 and 5 of the drawings, the reflecting-body 2 is substantially of and may be exactly of the formation above described but the same is maintained in the same proper operative position upon the lamp-bulb by positioning means 15, comprising a plurality of flexible spaced projecting fingers 16, preferably two in number, the inner ends of which are connected with the annulus 5 by means of ears 17, formed upon the fingers 16 and received by keepers 18, which are formed upon or integral with the annulus 5 and project from the outer surface 14 of the latter. The fingers 16 are provided each at its outer end with a curved head 19, which heads are brought to bear upon the socket 20 of the lamp-bulb 3 or upon the inner end of the lamp-bulb, as clearly shown in Fig. 4, When the reflector is applied to the bulb and socket in the manner described With respect to Figs. 1 to 3. inclusive. The curved heads 19 are formed With the proper curvature, properly closely fit and engage With the bulb 3 or socket 20, or both, and may be separate from the fingers 16 and connected with the outer ends of the latter by means of ears 2-1, formed upon the fingers 16 and folded about contracted necks 22, projecting from the heads 19. The fingers 16 may thus be of any preferred material and the heads 19 preferably formed of hard fiber or other electrical insulating material Which-Will provide against any current-flow from the socket 20 to the reflecting-body 2.

In both the forms of construction illustrated in the several figures the reflectingbody 2 is sustained upon the lamp-bulb Within the zone of light radiated laterally from the filament of the lamp, so that the light is distributed all about the reflecting-body, making the device substantially a shadowless reflector. The positioning means 4 and the positioning means 15 both consisting of spaced fingers permit practically of unobstructed radiation of the light from the lamp.

The entire device is simple and ineXpensive in construction and is quickly and easily applied to any standard type of incandescent lampbulb.

Having thus described my invention, I

claim and desire to secure by Letters Patent 1. The combination, with a lam -bulb; of a reflector consisting of a reflecting ody supported upon the lamp-bulb in position} to permit lateral radiation of the light from the lamp across both the inner and outer surfaces of said reflecting-body; and positioning means connected With said reflecting-body and bearing upon the inner end of the lampbulb, said positioning means consisting of spaced flexible insulating-fingers.

2. The combination, with a lamp-bulb; of a reflector consisting of a reflecting-body supported upon and surrounding the lamp-bulb in position to permit lateral radiation of the light from the lamp across both the inner and outer surfaces of said reflecting-body; and positioning means connected With said reflecting-body and consisting of a plurality of flexible spaced fingers the inner ends of Which are connected With said reflecting-body and. the outer ends of Which are provided each With a curved head of insulating material, Which heads are adapted to bear upon the socket of the lamp-bulb.

In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3040994 *Jun 16, 1958Jun 26, 1962Westinghouse Electric CorpLuminaire
US6070993 *Jun 17, 1998Jun 6, 2000Koito Manufacturing Co., Ltd.Vehicle lamp
US7021813 *May 29, 2003Apr 4, 2006Samsung Electronics Co., Ltd.Backlight assembly for liquid crystal display device having diffusive reflector
US20040001345 *May 29, 2003Jan 1, 2004Lee Sang-DukIlluminating apparatus, backlight assembly and liquid crystal display device having the same
US20040264201 *Jun 30, 2003Dec 30, 2004Guide Corporation, A Delaware CorporationChromatic effect using light sources and condensing lenses
Cooperative ClassificationF21V7/04