Illumination – Elongated source light unit or support – With means to accommodate additional circuit element
Patent
1994-04-22
1995-08-08
Dority, Carroll B.
Illumination
Elongated source light unit or support
With means to accommodate additional circuit element
362223, 362234, 362255, F21S 300
Patent
active
054404673
ABSTRACT:
A light assembly is provided for illuminating a worksurface below and in front of the light assembly. The light assembly includes a housing configured for mounting over the worksurface below an overhead cabinet or shelf, and an elongated linear light source such as a fluorescent light bulb supported in the housing. A step reflector is supported by the housing for reflecting light generated by the light source onto the worksurface therebelow, and a tubular lens is mounted telescopically onto the light source. The tubular lens includes prism-shaped triangular rings on its inside surface for controlling the light from the light source onto the worksurface therebelow. The tubular lens includes end sections and intermediate sections that can be selectively assembled together to cover the light source. By selectively including zero, one, or more of the intermediate sections, a variety of different length linear light sources can be covered.
REFERENCES:
patent: 2297124 (1942-09-01), Anderson et al.
patent: 2345235 (1944-03-01), Carter, Jr.
patent: 2366216 (1945-01-01), Roberts
patent: 2741694 (1956-04-01), Thomstad et al.
patent: 2820918 (1958-01-01), Aronstein
patent: 3140055 (1964-07-01), Long
patent: 3225515 (1965-12-01), Orr
patent: 3288990 (1966-11-01), Stahlhut
patent: 3720826 (1973-03-01), Gilmore et al.
patent: 3746854 (1973-07-01), Brass
patent: 3829677 (1974-08-01), DeLlano
patent: 4054793 (1977-10-01), Shemitz
patent: 4164009 (1979-08-01), Maguire, Jr. et al.
patent: 4218727 (1980-08-01), Shemitz et al.
patent: 4233651 (1980-11-01), Fabbri
patent: 4242723 (1980-12-01), Fabbri et al.
patent: 4260220 (1981-04-01), Whitehead
patent: 4298916 (1981-11-01), Shemitz
patent: 4300185 (1981-11-01), Wakamatsu
patent: 4344111 (1982-08-01), Ruud et al.
patent: 4388676 (1983-06-01), Sato et al.
patent: 4432044 (1984-02-01), Lautzenheiser
patent: 4434453 (1984-02-01), Campbell
patent: 4450513 (1984-05-01), Guggemos
patent: 4517631 (1985-05-01), Mullins
patent: 4542449 (1985-09-01), Whitehead
patent: 4562515 (1985-12-01), Lautzenheiser
patent: 4564888 (1986-01-01), Lewin et al.
patent: 4615579 (1986-10-01), Whitehead
patent: 4617612 (1986-10-01), Pritchett
patent: 4622624 (1986-11-01), McCarthy et al.
patent: 4669033 (1987-05-01), Lee
patent: 4669034 (1987-05-01), Bansbach et al.
patent: 4683526 (1987-07-01), Krogsrud et al.
patent: 4719546 (1988-01-01), Spitz
patent: 4733332 (1988-03-01), Yamashita et al.
patent: 4748543 (1988-05-01), Swarens
patent: 4924368 (1990-05-01), Northrop et al.
patent: 4941071 (1990-07-01), Knauf
patent: 4969075 (1990-11-01), Helm et al.
patent: 4991070 (1991-02-01), Stob
patent: 5036436 (1991-07-01), Rattigan et al.
patent: 5051878 (1991-09-01), Ngai
patent: 5062030 (1991-10-01), Figueroa
patent: 5079680 (1992-01-01), Kohn
patent: 5086375 (1992-02-01), Fabbri et al.
patent: 5101330 (1992-03-01), Suzuki
patent: 5115380 (1992-05-01), Huisingh et al.
patent: 5146393 (1992-09-01), Crane
patent: 5192129 (1993-03-01), Figueroa
patent: 5193899 (1993-03-01), Oe et al.
patent: 5205632 (1993-04-01), Crinion
patent: 5226719 (1993-07-01), Feldpausch et al.
"Materials and Optics for Solar Energy Conversion and Advanced Lighting Technology", dated Aug. 1986, published by the International Society for Optical Eng., St. Paul, Minnesota, which discloses light guides including longitudinally extending triangularly-shaped ridges on an exterior side.
Product brochure entitled "One Bulb in here sheds a whole new light on applications and cost", undated, published by 3M Co., St. Paul, Minnesota, discloses a SCOTCHLAMP.TM. film for diffusing light.
Product brochure entitled "Threaded Globes--Lexalite.RTM. Models 510-538", undated, published by Lexalite International Corp., Charlevoix, Michigan, which discloses prismatic lenses.
Product brochure entitled "Corridor Light with Wrap-Around White Ribbed Diffuser", undated, published by House-O-Lite Corp., Chicago, Illinois, which discloses a ribbed diffuser.
Exhibit E is a brochure entitled "Scotchlamp Film.TM.", undated, published by 3M, which discloses ribbed diffusers and light assemblies.
Brochure entitled "Cylinder Brackets", undated, by Marco Company, address unknown which discloses prismatic cylinders for light sources.
A brochure entitled "Lytetube", copyright 1976, published by Lightolier, Inc., which discloses a lens including an interior surface with prisms.
An article entitled "Piping Lighting", dated May 1988, published in Popular Science, pp. 76-79 and 117, which discloses plastic tubes including plastic tubes having molded-in sawtooth patterns of prisms.
A product brochure in prior art entitled "Lorin Lighting Products", published by Lorin Industries of Muskegon, Michigan.
Dority Carroll B.
Steelcase Inc.
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