WO1994019644A1 - Low wattage light-enhancing collar - Google Patents

Low wattage light-enhancing collar Download PDF

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Publication number
WO1994019644A1
WO1994019644A1 PCT/US1994/001817 US9401817W WO9419644A1 WO 1994019644 A1 WO1994019644 A1 WO 1994019644A1 US 9401817 W US9401817 W US 9401817W WO 9419644 A1 WO9419644 A1 WO 9419644A1
Authority
WO
WIPO (PCT)
Prior art keywords
collar
light
light bulb
bulb
combination
Prior art date
Application number
PCT/US1994/001817
Other languages
French (fr)
Inventor
Anthony R. Young
Original Assignee
Tomico Products, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tomico Products, Inc. filed Critical Tomico Products, Inc.
Priority to AU62455/94A priority Critical patent/AU6245594A/en
Publication of WO1994019644A1 publication Critical patent/WO1994019644A1/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/04—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages the fastening being onto or by the light source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/32—Elements containing photoluminescent material distinct from or spaced from the light source characterised by the arrangement of the photoluminescent material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
    • F21V9/38—Combination of two or more photoluminescent elements of different materials
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21W—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO USES OR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS
    • F21W2121/00—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
    • F21W2121/04—Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00 for Christmas trees
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S362/00—Illumination
    • Y10S362/806—Ornamental or decorative

Definitions

  • Low wattage light bulbs are particularly popular for use as stranded lights for a Christmas tree or other outdoor or indoor ornamentation. These light bulbs are particularly appealing because of the low amount of heat generated. This, in turn, reduces the likelihood of a fire.
  • a fluorescent plastic collar placed around the light bulb, permitting at least a portion of the light bulb to extend above the collar without being covered by any portion of the collar.
  • the collar is formed from a fluorescent plastic material and includes an outwardly-extended flared portion which absorbs some of the light emitted from the light bulb and, in turn, fluoresces. When the power is turned off to the light bulb, the fluorescent material continues to fluoresce.
  • the annular flared portion includes a tapered rim which concentrates the fluorescent light, creating a halo effect.
  • the present invention provides a visual enhancement of low wattage light bulbs without decreasing the light emitted from the bulb itself.
  • FIG. 1 is a perspective view of the present invention.
  • FIG. 2 is a top view of the collar of the present invention.
  • FIG. 3 is a partially broken away front view of the present invention.
  • FIG. 4 is an angled cross-sectional view of the present invention taken along line 44 of FIG. 3.
  • FIG. 5 is a perspective view of an alternate embodiment of the present invention. Detailed Description
  • a light fixture 11 having a low wattage light bulb 12 extending from one end thereof and wires 13 extending from the opposite end.
  • a plastic collar 14 Surrounding the fixture 11 is a plastic collar 14 which permits the tip 15 of the bulb 12 to extend out from the collar 14.
  • the collar 14 itself includes a hollow cylindrical portion 18 and a flared portion 20.
  • the cylindrical portion 18 includes a first opened end 21
  • the cylindrical portion includes three slots 23 which divide the cylindrical portion into three arcuate tabs 24. As shown,
  • each tab 24 is also arcuate.
  • portion 18 includes an inwardly extended annular ridge 28, which is perpendicuiar to the length of the cylinder. This ridge 28 on the flexible tabs 24 permits light bulbs of different sizes to be inserted through the cylinder and engaged thereby.
  • the flared portion 20 of collar 14 includes a convex outer or upper surface 30 which extends from the cylindrical portion 18 to an annular tapered peripheral rim 31.
  • Rim 31 as indicated, tapers to a sharp edge 32, as shown more particularly in FIG. 3.
  • the light bulb 12 extends through the first open end 21 of collar 14, and the bulb tip 15 extends from above the second end of cylinder 18.
  • the annular tabs 24 flex outwardly to permit the bulb 12 to pass therethrough and the annular ridges 28 on the tabs engage the light bulb, holding the collar attached to the light bulb.
  • the light bulb 12 when activated, it emits light directly from the bulb tip 15. Light, of course, is emitted from the bulb in all directions. The portion that is not emitted directly away from the collar will reflect on the collar, causing the fluorescent pigment within the collar to fluoresce. This will create an enhanced bright visual effect.
  • the tapered rim 31 acts to concentrate the emitted fluorescent light, providing a ring or halo effect at the rim portion.
  • the collar itself is actually acting like an optical wave guide, directing the light through the rim portion.
  • the collar 14 itself is preferably formed by an injection
  • a preferred polymer is low density polyethylene.
  • One such preferred material is #2535 DOWLEX ® , a brand made by Dow Chemical Company.
  • Various pigments are commercially available.
  • the fluorescent pigment or dye can be coated onto the exterior of a preformed collar; however, this is less preferred. Examples of plastic materials suitable for use in the present invention
  • a phosphorescent pigment mixture was produced by mixing 426 grams of phosphorescent standard yellow (G-41676/DC, Chroma Corp., McHenry, Illinois) and 438 grams of Phosphorescent Bright Pink (G-35070/DC, Chroma Corp., McHenry, Illinois). The resultant phosphorescent pigment mixture was then added to the polyethylene/mineral oil mixture. The resultant mixture was thoroughly mixed together in the hopper of an injection mold machine; preheated to 410° F; and injected into an aluminum mold
  • the machine had a cycle of 20 seconds after which the resultant pink-phosphorescent collar was allowed to cool
  • Green Fluorescent-Phosphorescent Collar A green fluorescent-phosphorescent collar was produced according to the procedure of Example 1 except the pigment mixture was composed of 284 grams of phosphorescent standard yellow (G- 41676/DC, Chroma Corp., McHenry, Illinois) and 600 grams of Phosphorescent Bright Green (G-62052/DC, Chroma Corp., McHenry, Illinois).
  • Example 3 Blue Fluorescent-Phosphorescent Collar A blue fluorescent-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 710 grams of phosphorescent standard yellow (G- 41676/DC, Chroma Corp., McHenry, Illinois) and 162 grams of
  • a yellow fluorescent-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 568 grams of phosphorescent standard yellow (G-41676/DC, Chroma Corp., McHenry, Illinois) and 292 grams of Phosphorescent Bright Yellow (G-41675/DC, Chroma
  • a natural-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 852 grams of Phosphorescent Standard Yellow (G-
  • the present invention can, of course, be modified in many different manners.
  • the collar can be attached in a variety of different manners.
  • the collar 14 could snap onto the light fixture 1 1.
  • the collar could include complementary internal threading and permit the collar to be threaded onto the light fixture.
  • the annular rim 28 could be replaced by barbs or simply the inherent flexibility of the arcuate tabs 24 could be used to engage the light bulb and/or the light
  • light fixture 42 is formed with a body portion 43 having wires 44 extended at one end thereof and including
  • the entire light fixture is molded from a plastic material incorporating the fluorescent dye or, alternately, coating the exterior surface of the flared portion with a fluorescent pigment or dye.
  • flared portion can take on a variety of different appearances.
  • the flared portion can be in the design of flower petals or of any other outwardly extended geometric design. It can be round in shape, squared in shape, concave or convex.
  • the rim can be smooth or jagged, sharply tapered as shown, or with a more gradual taper. In all of these embodiments the visual effect of the present invention should be observed.
  • the visual impact created by low wattage lights is improved, making them more visually attractive and comparable to higher wattage bulbs without in any way creating a fire hazard or increasing heat. This simply makes better use of the emitted light from the light bulb.

Abstract

A collar (14) with a flared end (20) surrounds a low wattage light bulb (12) with the tip (15) of the bulb (12) extending above the collar (14). The collar (14) is formed from a fluorescent material. Some light is emitted from the bulb (12) away from the collar (14). The remaining light contacts the collar (14) causing the collar (14) to fluoresce. This enhances the effect of the low wattage bulb without significantly decreasing the emitted visual light.

Description

LOW WATTAGE LIGHT-ENHANCING COLLAR
This application is a continuation-in-part of Application
Serial No. 08/019,463 filed February 18, 1993, entitled "Phosphorescent Light Collars." Background of the Invention
Low wattage light bulbs are particularly popular for use as stranded lights for a Christmas tree or other outdoor or indoor ornamentation. These light bulbs are particularly appealing because of the low amount of heat generated. This, in turn, reduces the likelihood of a fire.
Unfortunately, a side effect of the low wattage bulbs is the low amount of light that is emitted from these bulbs. There have been various plastic covers placed over these light bulbs formed from colored plastic to make them appear to be larger, but such covers actually have a negative effect, decreasing the amount of light transmitted from the fixture. Summary of the Invention
Accordingly, it is an object of the present invention to
provide a method to enhance the visual appearance of low wattage light bulbs. Further, it is an object of the present invention to provide such a visual enhancement without significantly decreasing the amount of emitted light. Further, it is an object of the present invention to provide a device which emits light even after the light
bulb is turned off.
The objects and advantages of the present invention can be achieved by a fluorescent plastic collar placed around the light bulb, permitting at least a portion of the light bulb to extend above the collar without being covered by any portion of the collar. The collar is formed from a fluorescent plastic material and includes an outwardly-extended flared portion which absorbs some of the light emitted from the light bulb and, in turn, fluoresces. When the power is turned off to the light bulb, the fluorescent material continues to fluoresce.
The annular flared portion includes a tapered rim which concentrates the fluorescent light, creating a halo effect. Thus, the present invention provides a visual enhancement of low wattage light bulbs without decreasing the light emitted from the bulb itself. The objects and advantages of the present invention will be further
appreciated in light of the following detailed description and drawings. Briβf Description of the Drawings
FIG. 1 is a perspective view of the present invention.
FIG. 2 is a top view of the collar of the present invention.
FIG. 3 is a partially broken away front view of the present invention.
FIG. 4 is an angled cross-sectional view of the present invention taken along line 44 of FIG. 3.
FIG. 5 is a perspective view of an alternate embodiment of the present invention. Detailed Description
As shown in FIG. 1 , a light fixture 11 having a low wattage light bulb 12 extending from one end thereof and wires 13 extending from the opposite end. Surrounding the fixture 11 is a plastic collar 14 which permits the tip 15 of the bulb 12 to extend out from the collar 14. The collar 14 itself includes a hollow cylindrical portion 18 and a flared portion 20.
The cylindrical portion 18 includes a first opened end 21
and a second opened end 22 which provides a continuous, uninterrupted passageway through the collar 14.
The cylindrical portion includes three slots 23 which divide the cylindrical portion into three arcuate tabs 24. As shown,
the inner surface 26 of each tab 24 is also arcuate. The cylindrical
portion 18 includes an inwardly extended annular ridge 28, which is perpendicuiar to the length of the cylinder. This ridge 28 on the flexible tabs 24 permits light bulbs of different sizes to be inserted through the cylinder and engaged thereby.
The flared portion 20 of collar 14 includes a convex outer or upper surface 30 which extends from the cylindrical portion 18 to an annular tapered peripheral rim 31. Rim 31 , as indicated, tapers to a sharp edge 32, as shown more particularly in FIG. 3.
As shown in FIG. 1 , the light bulb 12 extends through the first open end 21 of collar 14, and the bulb tip 15 extends from above the second end of cylinder 18. The annular tabs 24 flex outwardly to permit the bulb 12 to pass therethrough and the annular ridges 28 on the tabs engage the light bulb, holding the collar attached to the light bulb.
Thus, when the light bulb 12 is activated, it emits light directly from the bulb tip 15. Light, of course, is emitted from the bulb in all directions. The portion that is not emitted directly away from the collar will reflect on the collar, causing the fluorescent pigment within the collar to fluoresce. This will create an enhanced bright visual effect. The tapered rim 31 acts to concentrate the emitted fluorescent light, providing a ring or halo effect at the rim portion. The collar itself is actually acting like an optical wave guide, directing the light through the rim portion.
The collar 14 itself is preferably formed by an injection
molding process by combining one or more fluorescent pigments or dyes with an appropriate plastic material and simply injection molding the collars. A preferred polymer is low density polyethylene. One such preferred material is #2535 DOWLEX®, a brand made by Dow Chemical Company. Various pigments are commercially available. Optionally, the fluorescent pigment or dye can be coated onto the exterior of a preformed collar; however, this is less preferred. Examples of plastic materials suitable for use in the present invention
are described in the following examples.
Example 1 Pink Fluorescent-Phosphorescent Collar
Twenty pounds of #2535 DOWLEX® liner low density polyethylene pellets (Dow Chemical Co., Midland, Michigan) were
mixed with one teaspoonful of mineral oil so that the oil was evenly dispersed over the pellets.
A phosphorescent pigment mixture was produced by mixing 426 grams of phosphorescent standard yellow (G-41676/DC, Chroma Corp., McHenry, Illinois) and 438 grams of Phosphorescent Bright Pink (G-35070/DC, Chroma Corp., McHenry, Illinois). The resultant phosphorescent pigment mixture was then added to the polyethylene/mineral oil mixture. The resultant mixture was thoroughly mixed together in the hopper of an injection mold machine; preheated to 410° F; and injected into an aluminum mold
within the machine. The machine had a cycle of 20 seconds after which the resultant pink-phosphorescent collar was allowed to cool
at ambient temperatures.
Example 2
Green Fluorescent-Phosphorescent Collar A green fluorescent-phosphorescent collar was produced according to the procedure of Example 1 except the pigment mixture was composed of 284 grams of phosphorescent standard yellow (G- 41676/DC, Chroma Corp., McHenry, Illinois) and 600 grams of Phosphorescent Bright Green (G-62052/DC, Chroma Corp., McHenry, Illinois).
Example 3 Blue Fluorescent-Phosphorescent Collar A blue fluorescent-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 710 grams of phosphorescent standard yellow (G- 41676/DC, Chroma Corp., McHenry, Illinois) and 162 grams of
Phosphorescent Bright Blue (G-53883/DC, Chroma Corp., McHenry, Illinois).
Example 4
Yellow Fluorescent-Phosphorescent Collar
A yellow fluorescent-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 568 grams of phosphorescent standard yellow (G-41676/DC, Chroma Corp., McHenry, Illinois) and 292 grams of Phosphorescent Bright Yellow (G-41675/DC, Chroma
Corp., McHenry, Illinois).
Example 5
Natural Yellow-Phosphorescent Collar
A natural-phosphorescent collar was produced according to the procedure of Example 1 , except the pigment mixture was composed of 852 grams of Phosphorescent Standard Yellow (G-
41676/DC, Chroma Corp., McHenry, Illinois).
The present invention can, of course, be modified in many different manners. The collar can be attached in a variety of different manners. For example, the collar 14 could snap onto the light fixture 1 1. If the light fixture included external threading, the collar could include complementary internal threading and permit the collar to be threaded onto the light fixture. The annular rim 28 could be replaced by barbs or simply the inherent flexibility of the arcuate tabs 24 could be used to engage the light bulb and/or the light
fixture.
One final embodiment of the present invention in shown in FIG. 5. In this embodiment light fixture 42 is formed with a body portion 43 having wires 44 extended at one end thereof and including
at the opposite end a flared portion 45, which includes an opening adapted to receive the light bulb 46. In this embodiment, the entire light fixture is molded from a plastic material incorporating the fluorescent dye or, alternately, coating the exterior surface of the flared portion with a fluorescent pigment or dye.
In this embodiment as with the initial embodiment, the
flared portion can take on a variety of different appearances. For
example, the flared portion can be in the design of flower petals or of any other outwardly extended geometric design. It can be round in shape, squared in shape, concave or convex. The rim can be smooth or jagged, sharply tapered as shown, or with a more gradual taper. In all of these embodiments the visual effect of the present invention should be observed.
Thus, according to the present invention, the visual impact created by low wattage lights is improved, making them more visually attractive and comparable to higher wattage bulbs without in any way creating a fire hazard or increasing heat. This simply makes better use of the emitted light from the light bulb.
The preceding has been a description of the present invention, along with the preferred method of practicing the invention currently known to the inventor. However, the invention itself should be defined only by the appended claims wherein we claim:

Claims

1. In combination a light bulb held in a fixture and a collar
surrounding said light bulb, said collar having a cylindrical portion
opened at a first end and a second end permitting said light bulb to fit within said first end; said collar further including means to grasp said light bulb; an outwardly extended annular flared portion at said second end, said light bulb extended through said first end and at least partially beyond said second end, and wherein said collar
comprises a fluorescent material; whereby a portion of light emitted from said light bulb causes said collar to fluoresce and a portion of light from said light bulb travels from said bulb without interference from said collar.
2. The combination claimed in claim 1 wherein said means to grasp said bulb comprises a ridge on an inside surface of said cylindrical portion.
3. The combination claimed in claim 2 wherein said collar comprises a flexible polymer in combination with a fluorescent pigment.
4. The combination claimed in claim 2 wherein said flared portion includes an annular, peripheral tapered rim whereby
fluorescent light emitted from said collar travels from said rim to create a halo effect.
5. The combination claimed in claim 8 wherein said cylinder includes at least one slot dividing said cylinder into a plurality of arcuate tabs adapted to flex and engage said light bulb.
6. A light fixture comprising a body, said body including an open front portion, a light bulb extended partially through said open front portion into said body, said front portion including an outwardly extended annular rim wherein said light fixture is formed from a fluorescent plastic material wherein said flared portion surrounds said light bulb held in said light fixture without covering a forward tip of said light bulb.
PCT/US1994/001817 1993-02-18 1994-02-14 Low wattage light-enhancing collar WO1994019644A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU62455/94A AU6245594A (en) 1993-02-18 1994-02-14 Low wattage light-enhancing collar

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US1946393A 1993-02-18 1993-02-18
US08/019,463 1993-02-18

Publications (1)

Publication Number Publication Date
WO1994019644A1 true WO1994019644A1 (en) 1994-09-01

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ID=21793356

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Application Number Title Priority Date Filing Date
PCT/US1994/001817 WO1994019644A1 (en) 1993-02-18 1994-02-14 Low wattage light-enhancing collar

Country Status (3)

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US (1) US5548493A (en)
AU (1) AU6245594A (en)
WO (1) WO1994019644A1 (en)

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WO2007088150A2 (en) 2006-02-01 2007-08-09 Osram Gesellschaft mit beschränkter Haftung After-glowing lamp
WO2008084416A1 (en) * 2007-01-09 2008-07-17 Philips Intellectual Property & Standards Gmbh Illuminating device

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US6375864B1 (en) 1998-11-10 2002-04-23 M.A. Hannacolor, A Division Of M.A. Hanna Company Daylight/nightglow colored phosphorescent plastic compositions and articles
CN2588766Y (en) * 2002-11-22 2003-12-03 叶杨秋月 Improved night fishing pole structure
US20070051883A1 (en) * 2003-06-23 2007-03-08 Advanced Optical Technologies, Llc Lighting using solid state light sources
US6995355B2 (en) * 2003-06-23 2006-02-07 Advanced Optical Technologies, Llc Optical integrating chamber lighting using multiple color sources
US20070138978A1 (en) * 2003-06-23 2007-06-21 Advanced Optical Technologies, Llc Conversion of solid state source output to virtual source
US7011425B2 (en) * 2003-08-01 2006-03-14 S.C. Johnson & Son, Inc. Luminary product
US7144131B2 (en) 2004-09-29 2006-12-05 Advanced Optical Technologies, Llc Optical system using LED coupled with phosphor-doped reflective materials
WO2007092387A2 (en) * 2006-02-03 2007-08-16 Rising Peter E Light collar
US7365991B2 (en) * 2006-04-14 2008-04-29 Renaissance Lighting Dual LED board layout for lighting systems
US20100135024A1 (en) * 2008-12-02 2010-06-03 Gier Robert A Decorative light protection device with environmental impact reduction features
ITFI20140006U1 (en) 2014-02-14 2015-08-14 Purple Innovation Srl VOTIVE LUMINO WITH TOTOLUMINESCENT ELEMENT
US9869525B1 (en) * 2016-09-16 2018-01-16 North Pass, Ltd. Weapon sight light emission system
US11867478B2 (en) 2022-01-19 2024-01-09 HiViz, LLC Gunsight with elongate light collector

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Also Published As

Publication number Publication date
US5548493A (en) 1996-08-20
AU6245594A (en) 1994-09-14

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