US3721815A - Acylindrical ornamental illumination device and adapter - Google Patents

Acylindrical ornamental illumination device and adapter Download PDF

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US3721815A
US3721815A US00203774A US3721815DA US3721815A US 3721815 A US3721815 A US 3721815A US 00203774 A US00203774 A US 00203774A US 3721815D A US3721815D A US 3721815DA US 3721815 A US3721815 A US 3721815A
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bulb
light
bundling
envelope
light receiving
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US00203774A
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L Wall
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Poly-Optical Products Inc
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Poly Optics Inc
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0005—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being of the fibre type
    • G02B6/0006—Coupling light into the fibre
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G33/00—Religious or ritual equipment in dwelling or for general use
    • A47G33/04—Christmas trees 
    • A47G33/08—Christmas tree decorations
    • A47G33/0836—Christmas tree decorations comprising means for attaching to a lamp or candle holder, e.g. reflectors, lamp shades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S4/00—Lighting devices or systems using a string or strip of light sources
    • F21S4/10—Lighting devices or systems using a string or strip of light sources with light sources attached to loose electric cables, e.g. Christmas tree lights
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4298—Coupling light guides with opto-electronic elements coupling with non-coherent light sources and/or radiation detectors, e.g. lamps, incandescent bulbs, scintillation chambers

Definitions

  • An adapter is provided whereby a spray of optical fibers can be readily connected or disposed in prox- [52] U5, Cl 24 10 240]] EL, 240/10 T, imity to a light source by means of an acylindrical cas- 240/81 R ing therefor.
  • a plurality of optical fiber sprays are [51] Int.
  • the fields, of art to which the invention pertains include the fields of optics and radiant energy, particularly with respect to light conducting rods, such as optical fibers, and decorative lights including displays and ornaments of the tree decorating type.
  • the present invention enables the illumination of optical fiber sprays without requiring bulky and expensive light source holders.
  • the invention enables a single spray to be illuminated in such a manner that it can be worn by a person, for example, as a component of a corsage, or a plurality of illuminated sprays can be strung out and draped around a Christmas tree or the like.
  • an adapter is provided herein which enables a spray of optical fibers to be secured to an ordinary light bulb or miniature light' bulb such as is found on a string of Christmas tree lights.
  • the adapter carries the bundled ends of the optical fibers at one end and is formed to engage the light bulb so as to dispose the bundled fiber ends adjacent the light bulb.
  • the adapter includes a casing for the light bulb which is acylindrically shaped for aesthetically attractive lines and ease of removal and insertion and formed to be secured to the bulb.
  • the casing may be formed inter- .sleeve which is slidably secured at the forward end of the casing.
  • the casing may be integrally formed as an extension of the bundling sleeve so that they constitute a single structural unit.
  • FIG. I is a perspective view of a Christmas tree which is draped'with astring of optical fiber sprays in accordance with this invention
  • FIG. 2 is a perspective view of an optical fiber util-:
  • FIG. 3 is a combined elevational, partial cross sectional view of an adapter utilized in this invention and connected to a light bulb;
  • FIG. 4 is an elevational partially exploded, cut-away view of an alternative adapter structure of this invention connected to a light bulb.
  • FIG. 1 there is shown a Christmas tree 10 which has been decorated by disposing thereabout a plurality of optical sprays 12.
  • Each spray 12 can be illuminated by an ordinary light bulb, or a miniature light bulb can be utilized. The manner of such illumination and mechanism of attachment to the light bulb will be described in more detail hereinafter.
  • the light bulbs are strung out on electrical wiring 14 so that the bulbs receive current from a common electrical source through a standard household electrical outlet.
  • a string of lights which is ordinarily utilized to decorate a Christmas tree or the like can be utilized with the light bulbsin parallel or series connection, or any other arrangement appropriate to the structure to be decorated can be utilized.
  • optical fiber sprays utilized in this invention are composed of a p luralig of single optical fibers bundled together at one end andiifiietrai'ii'd at the other end to flare outwardly from the point of bundling with a I visually pleasing fullness.
  • each optical fiber 22 comprises a central light conducting core 24 encased within a light reflecting jacket 26.
  • the optical fiber 22 is constructed of materials well known to the art wherein the light conducting core 24 has a higher index of refraction than the jacket 26.
  • a core 24 can be formed of polysytrene having an index of refraction of 1.60 and the jacket 26 can be formed of a polymethylmethacrylate having an index of refraction of'I.49.
  • Methods of forming such fibers are well known in the in FIG. 1, to a light source 28.
  • the light source 28 comprises a light bulb 30 (which may be'a six volt light bulb if used in series) and a socket husk 32 therefor.
  • the bulb 30 includes a threaded electrical contact neck 31 and an envelope 33 enclosing a filament 35, the envelope 33 being of the spherical typcpElectrical leads l and 17 are connected through the socket husk 32 to activate the filament 35 through the contact neck 31, all in the usual manner.
  • the optical fibers constituting the spray 12 have their ends bundled together and cut to define a light ments merely exemplify the invention which may take receiving lower surface 36.
  • An adapter 38 connects the bundled ends of the optical fiber spray to the light source 2i. by'connection directly to the bulb envelope 33.
  • the adapter 38 can be of metal orplastic and is formed hollow with the lower portion having an ogee shape 'in cross-section.
  • the diameter of the lower end 40 of the adapter 38 is just slightly larger than the point of largest diameter of the bulb envelope 33 and can be pushed onto the envelope 33 to snap past that point.
  • the bottom portion of the adapter 33 is formed in crosssection to the shape of the bulb so as to secure the adapter upright from the bulb.
  • the lower surface 36 of the bundled fiber ends is disposed within the forward end 42 of the adapter 38 which is then crimped as shown at 44 to secure the fiber ends.
  • the adapter 38 in this embodiment is thus formed integrally as a simple structural unit with the means for bundling the ends of the optical fiber spray 12.
  • FIG. 4 there is illustrated another embodiment of the invention in which an adapter 74 is provided for utilization with a miniature or sub-miniature light assembly 76.
  • the miniature assembly 76 in-' cludesa husk 78 carrying a socket 80'and miniature,
  • The'bulb 82 includes an envelope 84 carried by a threaded electrical contact neck (not shown).
  • the adapter 74 is in the form of a hollow truncated cone, formed from a single plastic blank.
  • a spray 90 of optical fibers have their ends bundled within a metallic sleeve or grommet 92, the fiber ends being cut coplanar with the rear end of the grommet to define a light receiving surface 94.
  • the grommet 92 is disposed and held by friction in the top, narrower opening 96 defined by the adapter 74.
  • the adapter 74 is fitted internally with a spiral spring 98 which has.
  • the internal surfaces of the adapter 38 or 74 can be coated with a highly light-reflecting material.
  • the adapter 38 and 74 can be constructed of aluminized molded plastic having interior and exterior surfaces coated with aluminum.
  • an adapter comprising a casing for said light bulb, .carrying said bundled fiber ends at one end thereof and formed acylindrically to dispose said bundled fiber ends adjacent, but spaced from, said light bulb envelope; and 1 means internally of said casing for connecting and securing said casing to said light bulb envelope;
  • said fibers being unrestrained exteriorly of said bundling'mcans whereby to flare outwardly from said bundling means.
  • a decorative device comprising:
  • a miniature light assembly of a bulb and holder said bulb comprising a filament enclosed by an envelope;
  • said fibers being unrestrained exteriorly of said bundling member whereby to flare outwardly from said bundling member.
  • said fibers being unrestrained exteriorly of said bun-- receiving fiber ends and said acylindrical casing is formed to slidably receive said sleeve at one end.

Abstract

An adapter is provided whereby a spray of optical fibers can be readily connected or disposed in proximity to a light source by means of an acylindrical casing therefor. A plurality of optical fiber sprays are connected for illumination by the light bulbs on a string of light bulbs which may then be used for decorating a Christmas tree or the like.

Description

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United States l'atent 1 3,721,815 w n SUBSTlTUTl-I XR 1451March 20, 1973 54 A Y IN ORNAMENTAL 2,749,432 6/1956 Dorsey ..240/10 T ILLUMINATION DEVICE AND 2,468,773 5/1949 Musinski ..240/10 T ADAPTER 2,465,700 3/1949 Tuttle ..240/l0 T 2,248,117 7/1941 Petry ..240/l0 T [75] Inventor: Lamar J. Wall, Seal Beach, Calif. 2,134,356 10/1938 Clemence 2240/10 S 2,714,652 8/1955 Meyer ..240/l0 P [73] PMYOPWS Inc-i Sama 3,233,093 2/1966 Gei'lat ..240/10 R X [22] Filed) Dec. 1, 1971 I Primary Examiner-Joseph F. Peters, Jr. [2 l p 03,774 Alt0rney-R0bert Berliner et a1.
Related US. Application Data I [57] ABSTRACT [63] Continuation-impart of Ser. No. 27,064, April 9, i
970 p 1 N0 3.624.335, An adapter is provided whereby a spray of optical fibers can be readily connected or disposed in prox- [52] U5, Cl 24 10 240]] EL, 240/10 T, imity to a light source by means of an acylindrical cas- 240/81 R ing therefor. A plurality of optical fiber sprays are [51] Int. Cl ..F21v 17/04 onn ct f r ill mina ion by the light bulbs on a [58] Field of Search ..240/1 EL, 10 R, 10 P, 10 S, string of light bulbs which may then be used for 240/10 T, 81 R, 81 C; 350/96 R, 96 B decorating a Christmas tree or the like.
[ 5 References Cited 9 Claims, 4 Drawing Figures UNITED STATES PATENTS 3,532,874 10/1970 Rosenast .240/l0 T l,642,l87 9/1927 Young, Jr. ..240/l EL ACYLINDRICAL ORNAMENTAL ILLUMINATION DEVICE AND ADAPTER CROSS REFERENCE TO RELATED APPLICATION This application is a continuation-in-part of application Ser. No. 27,064, filed Apr. 9, I970, now U.S. Pat. No.3,624,385.
FIELD OF THE INVENTION The fields, of art to which the invention pertains include the fields of optics and radiant energy, particularly with respect to light conducting rods, such as optical fibers, and decorative lights including displays and ornaments of the tree decorating type.
BACKGROUND AND SUMMARY OF THE INVENTION The advent of modern manufacturing procedures for fabricating plastic as well as glass optical fibers has made such fibers available for decorative purposes. In such utility, the fibers are often bundled together at one end with the fibers at the other end unrestrained to flare outwardly forming a spray or bouquet of light. An illumination source for the fibers must be provided and this has generally been accomplished by the special construction ofa holder including a light bulb and particularly adapted to maintain the light receiving bundled ends of the fibers a predetermined distance from the bulb. The holder is shaped internally to concentrate light from the bulb onto the bundled fiber ends and is formed with vent openings so that heat may be readily dissipated. Provision is made for disposing a light filter and/or heat reflector between the light bulb and bundled fiber ends. Such structures'enable the utilization of individual units are required, for example, in the decoration of a Christmas tree or thelike.
The present invention enables the illumination of optical fiber sprays without requiring bulky and expensive light source holders. The invention enables a single spray to be illuminated in such a manner that it can be worn by a person, for example, as a component of a corsage, or a plurality of illuminated sprays can be strung out and draped around a Christmas tree or the like. In particular, an adapter is provided herein which enables a spray of optical fibers to be secured to an ordinary light bulb or miniature light' bulb such as is found on a string of Christmas tree lights. The adapter carries the bundled ends of the optical fibers at one end and is formed to engage the light bulb so as to dispose the bundled fiber ends adjacent the light bulb. The adapter includes a casing for the light bulb which is acylindrically shaped for aesthetically attractive lines and ease of removal and insertion and formed to be secured to the bulb. The casing may be formed inter- .sleeve which is slidably secured at the forward end of the casing. Alternatively, the casing may be integrally formed as an extension of the bundling sleeve so that they constitute a single structural unit.
BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is a perspective view of a Christmas tree which is draped'with astring of optical fiber sprays in accordance with this invention,
"FIG. 2 is a perspective view of an optical fiber util-:
ized in this invention;
FIG. 3 is a combined elevational, partial cross sectional view of an adapter utilized in this invention and connected to a light bulb; and
FIG. 4 is an elevational partially exploded, cut-away view of an alternative adapter structure of this invention connected to a light bulb.
DETAILED DESCRIPTION Referring to FIG. 1, there is shown a Christmas tree 10 which has been decorated by disposing thereabout a plurality of optical sprays 12. Each spray 12 can be illuminated by an ordinary light bulb, or a miniature light bulb can be utilized. The manner of such illumination and mechanism of attachment to the light bulb will be described in more detail hereinafter. The light bulbs are strung out on electrical wiring 14 so that the bulbs receive current from a common electrical source through a standard household electrical outlet. In this regard, a string of lights which is ordinarily utilized to decorate a Christmas tree or the like can be utilized with the light bulbsin parallel or series connection, or any other arrangement appropriate to the structure to be decorated can be utilized.
The optical fiber sprays utilized in this invention are composed of a p luralig of single optical fibers bundled together at one end andiifiietrai'ii'd at the other end to flare outwardly from the point of bundling with a I visually pleasing fullness. One can utilize from ten to about twenty optical fibers to constitute a decorative spray useful herein, but any reasonable number of optical fibers can be utilized.
Referring to FIG. 2, each optical fiber 22 comprises a central light conducting core 24 encased within a light reflecting jacket 26. The optical fiber 22 is constructed of materials well known to the art wherein the light conducting core 24 has a higher index of refraction than the jacket 26. For example, a core 24 can be formed of polysytrene having an index of refraction of 1.60 and the jacket 26 can be formed of a polymethylmethacrylate having an index of refraction of'I.49. Methods of forming such fibers are well known in the in FIG. 1, to a light source 28. The light source 28 comprises a light bulb 30 (which may be'a six volt light bulb if used in series) and a socket husk 32 therefor. The bulb 30 includes a threaded electrical contact neck 31 and an envelope 33 enclosing a filament 35, the envelope 33 being of the spherical typcpElectrical leads l and 17 are connected through the socket husk 32 to activate the filament 35 through the contact neck 31, all in the usual manner.
The optical fibers constituting the spray 12 have their ends bundled together and cut to define a light ments merely exemplify the invention which may take receiving lower surface 36. An adapter 38 connects the bundled ends of the optical fiber spray to the light source 2i. by'connection directly to the bulb envelope 33. The adapter 38 can be of metal orplastic and is formed hollow with the lower portion having an ogee shape 'in cross-section. The diameter of the lower end 40 of the adapter 38 is just slightly larger than the point of largest diameter of the bulb envelope 33 and can be pushed onto the envelope 33 to snap past that point. The bottom portion of the adapter 33 is formed in crosssection to the shape of the bulb so as to secure the adapter upright from the bulb. The lower surface 36 of the bundled fiber ends is disposed within the forward end 42 of the adapter 38 which is then crimped as shown at 44 to secure the fiber ends. The adapter 38 in this embodiment is thus formed integrally as a simple structural unit with the means for bundling the ends of the optical fiber spray 12.
Referring to FIG. 4, there is illustrated another embodiment of the invention in which an adapter 74 is provided for utilization with a miniature or sub-miniature light assembly 76. The miniature assembly 76 in-' cludesa husk 78 carrying a socket 80'and miniature,
' elongate bulb82 therefor, energized via electrical leads 86 and 88 in the usual manner. The'bulb 82 includes an envelope 84 carried by a threaded electrical contact neck (not shown). The adapter 74 is in the form of a hollow truncated cone, formed from a single plastic blank. A spray 90 of optical fibers have their ends bundled within a metallic sleeve or grommet 92, the fiber ends being cut coplanar with the rear end of the grommet to define a light receiving surface 94. The grommet 92 is disposed and held by friction in the top, narrower opening 96 defined by the adapter 74. The adapter 74 is fitted internally with a spiral spring 98 which has. an
. light receiving ends of thefibers are directly illuminated by the bulb. To aid such illumination, the internal surfaces of the adapter 38 or 74 can be coated with a highly light-reflecting material. In this regard, the adapter 38 and 74 can be constructed of aluminized molded plastic having interior and exterior surfaces coated with aluminum. By the utilization of an adapter internal uppermost diameter slightly smaller thanthef diameter of the body of the bulb envelope 84 and a 38 or 74 constructed as described hereinabove, a simple, inexpensive and convenient method is provided for many different forms that are radically different from the specific illustrative embodiments disclosed. Therefore, specific structural and functional details disclosed herein are not to be interpreted as limiting, but merely as a basis for the claims whichdefine the scope of the invention.
1 claim:
1. A decorative device for use with a light bulb and bulb holder, said light bulb comprising a filament enclosed by an envelope, comprising:
a plurality of optical fibers having light emitting ends and light receiving ends; 7
means for bundling said light receiving fiber ends constituting sole fiber contact support;
an adapter, comprising a casing for said light bulb, .carrying said bundled fiber ends at one end thereof and formed acylindrically to dispose said bundled fiber ends adjacent, but spaced from, said light bulb envelope; and 1 means internally of said casing for connecting and securing said casing to said light bulb envelope;
said fibers being unrestrained exteriorly of said bundling'mcans whereby to flare outwardly from said bundling means. i
2. A decorative device, comprising:
a miniature light assembly of a bulb and holder, said bulb comprising a filament enclosed by an envelope;
a plurality of flexible optical fibers'having lighti emitting and light receiving ends;
a member short relative to the length of said fibers for bundling said light receiving fiber ends and constituting sole fiber contact support; and
means comprising an acylindrical casing formed for connecting and securing said bundling member to said bulb envelope to dispose said light receiving fiber ends in close proximity to, but spaced from, said bulb envelope and constituting sole support for said bundling member; 4
said fibers being unrestrained exteriorly of said bundling member whereby to flare outwardly from said bundling member.
3. A decorative device for use with a miniature light assembly of a bulb and holder, said bulb comprising a filament enclosed by an envelope, said device comprismg: g
a plurality of flexible optical fibers having light emitting and light receiving ends;
a member short relative to the length of said fibers for bundling said light receiving fiber ends and constituting sole fiber contact support; and
means comprising an acylindrical casing formed for connecting and securing said bundling member to said bulb envelope to dispose said light receiving fiber ends in close proximity to, but spaced from, said bulb envelope and constituting sole support for said bundling member; 7
said fibers being unrestrained exteriorly of said bun-- receiving fiber ends and said acylindrical casing is formed to slidably receive said sleeve at one end.
7. The invention according to claim 3 in which said bundling member and connecting means constitute a one-piece unit.
8. The invention according to claim 3 in which said casing has a conical cross-section.
9. The invention according to claim 3 in which said casing defines an ogee in cross-section.
t t i i

Claims (9)

1. A decorative device for use with a light bulb and bulb holder, said light bulb comprising a filament enclosed by an envelope, comprising: a plurality of optical fibers having light emitting ends and light receiving ends; means for bundling said light receiving fiber ends constituting sole fiber contact support; an adapter, comprising a casing for said light bulb, carrying said bundled fiber ends at one end thereof and formed acylindrically to dispose said bundled fiber ends adjacent, but spaced from, said light bulb envelope; and means internally of said casing for connecting and securing said casing to said light bulb envelope; said fibers being unrestrained exteriorly of said bundling means whereby to flare outwardly from said bundling means.
2. A decorative device, comprising: a miniature light assembly of a bulb and holder, said bulb comprising a filament enclosed by an envelope; a plurality of flexible optical fibers having light emitting and light receiving ends; a member short relative to the length of said fibers for bundling said light receiving fiber ends and constituting sole fiber contact support; and means comprising an acylindrical casing formed for connecting and securing said bundling member to said bulb envelope to dispose said light receiving fiber ends in close proximity to, but spaced from, said bulb envelope and constituting sole support for said bundling member; said fibers being unrestrained exteriorly of said bundling member whereby to flare outwardly from said bundling member.
3. A decorative device for use with a miniature light assembly of a bulb and holder, said bulb comprising a filament enclosed by an envelope, said device comprising: a plurality of flexible optical fibers having light emitting and light receiving ends; a member short relative to the length of said fibers for bundling said light receiving fiber ends and constituting sole fiber contact support; and means comprising an acylindrical casing formed for connecting and securing said bundling member to said bulb envelope to dispose said light receiving fiber ends in close proximity to, but spaced from, said bulb envelope and constituting sole support for said bundling member; said fibers being unrestrained exteriorly of said bundling member whereby to flare outwardly from said bundling member.
4. The invention according to claim 3 in which said connecting means is formed for ready release from said bulb envelope.
5. The invention according to claim 3 in which said connecting means is formed to snap onto said bulb envelope.
6. The invention according to claim 3 in which said bundling member comprises a sleeve encasing said light receiving fiber ends and said acylindrical casing is formed to slidably receive said sleeve at one end.
7. The invention according to claim 3 in which said bundling member and connecting means constitute a one-piece unit.
8. The invention according to claim 3 in which said casing has a conical cross-section.
9. The invention according to claim 3 in which said casing defines an ogee in cross-section.
US00203774A 1970-04-09 1971-12-01 Acylindrical ornamental illumination device and adapter Expired - Lifetime US3721815A (en)

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US2706470A 1970-04-09 1970-04-09
US20377471A 1971-12-01 1971-12-01

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US3940868A (en) * 1973-11-30 1976-03-02 Northcutt Michael E Fish lure
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