US3530287A - Streetlighting luminaire containing replaceable sealed optical system - Google Patents

Streetlighting luminaire containing replaceable sealed optical system Download PDF

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Publication number
US3530287A
US3530287A US710847A US3530287DA US3530287A US 3530287 A US3530287 A US 3530287A US 710847 A US710847 A US 710847A US 3530287D A US3530287D A US 3530287DA US 3530287 A US3530287 A US 3530287A
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US
United States
Prior art keywords
optical system
reflector
streetlighting
luminaire
sealed
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
US710847A
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English (en)
Inventor
Donald E Husby
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cooper Industries LLC
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Application granted granted Critical
Publication of US3530287A publication Critical patent/US3530287A/en
Assigned to COOPER INDUSTRIES INC reassignment COOPER INDUSTRIES INC ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: WESTINGHOUSE ELECTRIC CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/04—Fastening of light sources or lamp holders with provision for changing light source, e.g. turret
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/08—Lighting devices intended for fixed installation with a standard
    • F21S8/085—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light
    • F21S8/086—Lighting devices intended for fixed installation with a standard of high-built type, e.g. street light with lighting device attached sideways of the standard, e.g. for roads and highways
    • 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
    • F21V15/00—Protecting lighting devices from damage
    • F21V15/01—Housings, e.g. material or assembling of housing parts
    • 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
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • F21V21/10—Pendants, arms, or standards; Fixing lighting devices to pendants, arms, or standards
    • F21V21/116—Fixing lighting devices to arms or standards
    • 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
    • F21W2131/00—Use or application of lighting devices or systems not provided for in codes F21W2102/00-F21W2121/00
    • F21W2131/10—Outdoor lighting
    • F21W2131/103—Outdoor lighting of streets or roads

Definitions

  • a lamp socket having male electrical connector blades which extend externally of the sealed container to plug into a female electrical socket fixed with respect to the luminaire housing.
  • a lamp is mounted in the socket and the interior of the container surrounding the lamp may be evacuated or may contain a gas fill with relamping of the luminaire being accomplished by replacing the entire sealed optical system.
  • Another object of the present invention is to provide a replaceable self-contained sealed optical system for use in a streetlighting type luminaire.
  • Yet another object of the present invention is to provide a replaceable self-contained light-generating and distributing assembly which includes a hermetically sealed unitized optical system.
  • Another object of the present invention is to provide a streetlighting luminaire which includes a self-contained sealed optical system wherein a high strength high bond seal connects the refractor and reflector of the optical system.
  • a replaceable self-contained light generating and distributing means which includes a lamp receiving socket having male electrical connector blades extending therefrom, reflector means mounted about the socket with the male electrical connector blades extending exteriorly thereof and refractor means which is sealed hermetically to the reflector means to define a sealed enclosure surrounding a light generating source mounted within the socket and which light generating and distributing assembly is adapted to be removably positioned within a luminaire housing.
  • FIG. 1 is a sectional view of a streetlighting type luminaire containing the sealed optical system of the present invention
  • FIG. 2 is an elevational view of a streetlighting type luminaire with the front portion partly broken away and the sealed optical system of the present invention partially removed;
  • FIG. 3 is a sectional view of one mechanism for supporting a sealed optical assembly within the luminaire
  • FIG. 4 is a sectional view illustrating one form which the seal between the refractor and the reflector may take;
  • FIG. 5 is a sectional view illustrating yet another form which the seal between the reflector and the refractor may take;
  • FIG. 6 is a fragmentary sectional view of an alternative method of supporting a sealed optical system within a luminaire housing.
  • FIG. 7 is a fragmentary sectional view similar to FIG. 6 with the sealed optical system partially removed.
  • FIG. 1 a sectional view of a streetlighting luminaire generally designated which includes a housing 12.
  • the housing 12 has at the rearwardmost end thereof a conventional slip fitter mechanism 14 adjacent an opening 16 for receiving a mast or mounting pole 18.
  • the slip fitter mechanism 14 generally has the facility to both secure the luminaire 10 to the mast or mounting pole 18 and adjustably position or level the luminaire.
  • a light source receiving opening 20 is located which may be partially closed off by a luminaire door frame assembly 22 which is hinged to the remainder of the luminaire housing 12 by a hinge mechanism 24.
  • Also located in the luminaire housing 12 are built-in ballast capacitors 26 and a transformer coil and core 28.
  • a female type electrical socket 30 may be fixedly positioned within the housing as illustrated at 32 in FIGS. 1 and 2 or may be releasably secured within the housing 12 as will be later described with respect to FIGS. 6 and 7.
  • the luminaire housing 12 further has included therein a latch mechanism 34 attached to the door frame 22 which coacts with a latch member 36 on the housing 12 to securely hold the door frame 22 when the sealed optical system generally designated 40 is in position within the luminaire housing.
  • the sealed optical system 40 is in the form of a replaceable, self-contained, light generating and distributing assembly and includes a reflector member 42 of preferably generally semi-spherical form and constructed of aluminum.
  • the reflector member 42 includes a neck portion 44 in which is mounted a lamp socket member 46 having male electrical connector blades 48 extending therefrom which are sealed through the end of reflector neck portion 44.
  • a substantially semispherical refractor member 50 is hermetically sealed along its substantially ovate circumferential edge to a complementary circumferential edge of reflector member 42 to thereby define a sealed enclosure with the reflector member 42. Either or both of the reflector and refractor may be designed to produce a predetermined light distribution pattern.
  • the refractor 50 may include conventional flutes and prisms and/ or the reflector 42 may have a specific parabolic-elliptical contour, as is known in the art.
  • a light source 49 is mounted in electrical socket 46 and is preferably a high pressure mercury vapor lamp.
  • a valve member 52 may be provided in the wall of the reflector member 42 in order to provide for the evacuation of the interior of the sealed enclosure or to permit the interior of the sealed enclosure to be filled with a preselected gaseous atmosphere. Alternatively, or additionally, a preselected pressure can be established either above or below atmospheric through the use of valve member 52.
  • FIGS. 4 and 5 there is illustrated the preferred mechanisms for sealing the refractor member 50 to the reflector member 42 as envisioned by the present invention.
  • the seal between the refractor and the reflector must have a high bond strength, be unaffected by substantial temperature changes and be preferably unaffected by ultraviolet light and other potentially deleterious media.
  • the refractor 50 is sealed to the reflector 42 by means of a silicone rubber sealing composition 54 which is coated between the mating edges of the members in an uncured condition and volcanized at temperatures of about 300 to 380 F. This vulcanized silicone rubber seal will be hermetic and will have a seal strength of about pounds per square inch.
  • the silicone rubber composition 54 may alternatively, where the weight of the refractor 50 is not extreme, also comprise a RTV (Room Temperature Vulcanizable) silicone rubber material as, for example. a Silastic such as Dow Chemical #537.
  • RTV silicone rubber materials have a seal strength of about 40 pounds per square inch but have the advantage that the vulcanization of the refractor to the reflector can be accomplished without a heat treating step thus eliminating the need for a furnace in the assembly process.
  • FIG. 5 An alternative seal is illustrated in FIG. 5 in which an uncured silicone rubber material 54 having fiberglass cloth (bias cut) reenforcement 58 is employed and the sealing compound is again vulcanized between the complementary circumferential edges of the reflector 42 and the refractor 50.
  • an entire sealed optical system including a refractor 50, reflector 42, lamp socket 46' and light source or discharge lamp 49 is mounted within the luminaire housing by means of male electrical connector blades 48 engaging female electrical socket 30.
  • the door frame 22 may include a ring-like flange 23 which coacts with the flange surface on the circumference of the refractor 50 so that when latch mechanism 34 is con nected to latch member 36, flange or ring 23 will help to support the sealed optical system.
  • the top of reflector 42 may include an integrally formed finger 43 which slides into a dependent ring 13 on the underside of luminaire housing 12 as the male connector blades 48 are inserted into the female electrical socket 30.
  • the sealed optical system 40 may be alternatively mounted within the luminaire housing 12 in the manner illustrated in FIGS. 6 and 7.
  • the female electrical receptacle is connected to a terminal block 60 by means of lengths of electrical wires 62 and there is provided on the interior surface of luminaire housing 12 a spring clip member 64 which is constructed and arranged to securely but releasably clamp the female electrical receptacle in a preselected position within the housing 12.
  • the male electrical connector blades can be inserted into the female electrical receptacle while the receptacle is outside the housing 12, the entire assembly then placed within the housing 12 and the door frame 22 closed to provide the entire support of the sealed optical system within the luminaire housing by means of ring or flange 23.
  • the door latch 34 is then opened and as the door frame is revolved downwardly the sealed optical system while connected to the female electrical receptacle will swing down with the door frame and can be removed therefrom after the door frame is opened. The electrical disconnect is then made outside the housing and a new sealed optical system installed.
  • a streetlighting luminaire can be erected and permitted to operate without cleaning of the optical parts for periods of more than 4 years without the requirement of periodic visitations in order to clean the optical system. Only after a trouble free 4 year period is it necessary to return to the luminaire site to replace the entire sealed optical system and look forward to another 4 years plus of luminaire life without added expense.
  • An additional feature of the sealed optical system of the present invention is that the entire sealed optical system may be returned to the factory at the conclusion of the lamp life, the sealed optical enclosure opened, the light source replaced with a new lamp, the optical system cleaned and resealed and the sealed optical svstem thus returned to service.
  • a streetlighting lurninaire comprising:
  • an elongated housing having slipfitter means at one end thereof for mounting said lurninaire to a luminaire support and a light source receiving opening at the other end thereof;
  • a female electrical receptacle and ballast means mounted within said housing intermediate said slipfi'tter means and said light source receiving opening;
  • a replaceable, self-contained, light generating and distributing means having male electrical connector blades extending therefrom and connecting said replaceable self-contained light-generated and distributing means to said female electrical receptacle, said self-contained light-generating and distributing means comprising:
  • refractor means having a peripheral edge complementary to the peripheral edge of said reflector means
  • sealing means hermetically sealing the peripheral edge of said refractor means to said substantially ovate peripheral edge of said reflector means
  • a light generating source mounted within said socket, at least one of said reflector means and said refractor means causing the light from said light generating source to be distributed in a predetermined pattern.
  • a streetlighting lurninaire comprising:
  • housing means having mounting means at one end thereof for mounting said lurninaire to a lurninaire support and a light source receiving opening at the other end thereof;
  • self-contained light generating and distributing means having complementary electrical connector means extending therefrom for connection to said electrical receptacle means, said self-contained light generating and distributing means comprising:
  • refractor means having a peripheral edge complementary to the peripheral edge of said reflector means
  • sealing means hermetically sealing the peripheral edge of said refractor means to the peripheral edge of said reflector means
  • sealing means is a silicone rubber composition which is fiberglass cloth reinforced.
  • a lurninaire comprising: elongated housing means having mounting means at one end thereof for afiixing said lurninaire to a lurninaire support and an opening on the underside of said elongated housing means approximate the other end thereof; closure means hinged to the underside of said housing means and adapted to be retained in its closed position within said opening, said closure means including an ovate opening bounded by a supporting rim;
  • hermetically sealed light-generating and distributing means including a refractor portion and a reflector portion sealed together and surrounding a lamp socket and lamp;
  • said supporting rim of said closure means constructed and arranged to underlie the projecting flange of said light generating and distributing means to thereby support said light generating and distributing means within said housing.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)
  • Fastening Of Light Sources Or Lamp Holders (AREA)
US710847A 1968-03-06 1968-03-06 Streetlighting luminaire containing replaceable sealed optical system Expired - Lifetime US3530287A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US71084768A 1968-03-06 1968-03-06

Publications (1)

Publication Number Publication Date
US3530287A true US3530287A (en) 1970-09-22

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Family Applications (1)

Application Number Title Priority Date Filing Date
US710847A Expired - Lifetime US3530287A (en) 1968-03-06 1968-03-06 Streetlighting luminaire containing replaceable sealed optical system

Country Status (5)

Country Link
US (1) US3530287A (fr)
BR (1) BR6906924D0 (fr)
DE (1) DE1911059A1 (fr)
ES (1) ES363449A1 (fr)
FR (1) FR2003348A1 (fr)

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654453A (en) * 1970-10-02 1972-04-04 Mc Graw Edison Co Luminaire
US4028541A (en) * 1974-11-11 1977-06-07 General Electric Company Luminaire
US4206499A (en) * 1977-08-11 1980-06-03 Dominion Auto Accessories Limited Vehicle marker lamp
US4320443A (en) * 1980-04-24 1982-03-16 Westinghouse Electric Corp. Fauna guard
US4639843A (en) * 1985-04-10 1987-01-27 Kidde Consumer Durables, Corporation Luminaire
US5803590A (en) * 1996-03-08 1998-09-08 Thomas & Betts Corporation Roadway luminaire
US5829866A (en) * 1996-02-26 1998-11-03 U.S. Philips Corporation Street light luminaire
US6217203B1 (en) * 1999-09-01 2001-04-17 Wesbar Corporation Resealable light capsule for a tail light
US6276818B1 (en) 2000-02-09 2001-08-21 Hubbell Incorporated Latch assembly for luminaire housing door
US6525890B1 (en) 2000-02-11 2003-02-25 Hubbell Incorporated Latch for optical assembly
US20030210549A1 (en) * 1996-03-08 2003-11-13 Sears Johnny L. Luminaire with an external starter
US20070262719A1 (en) * 2006-05-03 2007-11-15 Kenneth Lau Induction lighting system
US20070279908A1 (en) * 2004-08-27 2007-12-06 Turhan Alcelik General Lighting Armature
US20070291492A1 (en) * 2006-06-19 2007-12-20 Eric Haddad Traditional Style Post-Top Luminaire with Relamping Module and Method
EP1760394A3 (fr) * 2005-07-13 2008-05-21 Schreder Appareil d'éclairage
US20090034265A1 (en) * 2007-05-04 2009-02-05 William Orellana Outdoor lighting fixture
US20100002448A1 (en) * 2008-07-02 2010-01-07 Tyc Brother Industrial Co., Ltd. Street lamp with improved emission efficiency
TWI422777B (fr) * 2011-05-23 2014-01-11
CN104048228A (zh) * 2013-03-11 2014-09-17 玉晶光电股份有限公司 灯杆式照明装置
US20180356058A1 (en) * 2014-08-25 2018-12-13 GE Lighting Solutions, LLC Smart luminaire

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1234136B (it) * 1989-04-12 1992-05-04 Conchiglia Spa Dispositivo per il montaggio rapido delle armature di lampioni in genere
BE1016853A6 (fr) * 2005-11-17 2007-08-07 Schreder Appareil d'eclairage.

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678996A (en) * 1950-01-28 1954-05-18 Johnson Elmer Nonglare automobile headlight
US3071683A (en) * 1961-04-20 1963-01-01 Lauritz A Queale Luminaire
US3086104A (en) * 1960-09-21 1963-04-16 Stonco Electric Products Compa Lamp receptacle
US3325638A (en) * 1965-07-23 1967-06-13 Pfaff & Kendall Unitized vapor lamp

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678996A (en) * 1950-01-28 1954-05-18 Johnson Elmer Nonglare automobile headlight
US3086104A (en) * 1960-09-21 1963-04-16 Stonco Electric Products Compa Lamp receptacle
US3071683A (en) * 1961-04-20 1963-01-01 Lauritz A Queale Luminaire
US3325638A (en) * 1965-07-23 1967-06-13 Pfaff & Kendall Unitized vapor lamp

Cited By (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3654453A (en) * 1970-10-02 1972-04-04 Mc Graw Edison Co Luminaire
US4028541A (en) * 1974-11-11 1977-06-07 General Electric Company Luminaire
US4206499A (en) * 1977-08-11 1980-06-03 Dominion Auto Accessories Limited Vehicle marker lamp
US4320443A (en) * 1980-04-24 1982-03-16 Westinghouse Electric Corp. Fauna guard
US4639843A (en) * 1985-04-10 1987-01-27 Kidde Consumer Durables, Corporation Luminaire
US5829866A (en) * 1996-02-26 1998-11-03 U.S. Philips Corporation Street light luminaire
US20030210549A1 (en) * 1996-03-08 2003-11-13 Sears Johnny L. Luminaire with an external starter
US5803590A (en) * 1996-03-08 1998-09-08 Thomas & Betts Corporation Roadway luminaire
US6059427A (en) * 1996-03-08 2000-05-09 Thomas & Betts Corporation Roadway luminaire
US6132065A (en) * 1996-03-08 2000-10-17 Thomas & Betts International, Inc. Roadway luminaire
US5941632A (en) * 1996-03-08 1999-08-24 Thomas & Betts Corporation Roadway luminaire
US6241367B1 (en) 1996-03-08 2001-06-05 Thomas & Betts International, Inc. Roadway luminaire
US7014339B2 (en) 1996-03-08 2006-03-21 Acuity Brands, Inc. Luminaire with an external starter
US6302564B1 (en) 1996-03-08 2001-10-16 Thomas & Betts International, Inc. Roadway luminaire
US6419378B1 (en) 1996-03-08 2002-07-16 Acuity Brands, Inc. Roadway luminaire
USRE38767E1 (en) * 1996-03-08 2005-08-02 Acuity Brands, Inc. Roadway luminaire
US6217203B1 (en) * 1999-09-01 2001-04-17 Wesbar Corporation Resealable light capsule for a tail light
US6276818B1 (en) 2000-02-09 2001-08-21 Hubbell Incorporated Latch assembly for luminaire housing door
US6525890B1 (en) 2000-02-11 2003-02-25 Hubbell Incorporated Latch for optical assembly
US20070279908A1 (en) * 2004-08-27 2007-12-06 Turhan Alcelik General Lighting Armature
EP1760394A3 (fr) * 2005-07-13 2008-05-21 Schreder Appareil d'éclairage
US20070262719A1 (en) * 2006-05-03 2007-11-15 Kenneth Lau Induction lighting system
US7430120B2 (en) * 2006-05-03 2008-09-30 Kenneth Lau Induction lighting system
US7322720B1 (en) 2006-06-19 2008-01-29 Genlyte Thomas Group, Llc Traditional style post-top luminaire with relamping module and method
US20070291492A1 (en) * 2006-06-19 2007-12-20 Eric Haddad Traditional Style Post-Top Luminaire with Relamping Module and Method
US7510307B2 (en) 2006-06-19 2009-03-31 Genlyte Thomas Group Llc Traditional style post-top luminaire with relamping module and method
US20090034265A1 (en) * 2007-05-04 2009-02-05 William Orellana Outdoor lighting fixture
US7866854B2 (en) * 2007-05-04 2011-01-11 U.S. Pole Company, Inc. Outdoor lighting fixture
US20100002448A1 (en) * 2008-07-02 2010-01-07 Tyc Brother Industrial Co., Ltd. Street lamp with improved emission efficiency
TWI422777B (fr) * 2011-05-23 2014-01-11
CN104048228A (zh) * 2013-03-11 2014-09-17 玉晶光电股份有限公司 灯杆式照明装置
US20180356058A1 (en) * 2014-08-25 2018-12-13 GE Lighting Solutions, LLC Smart luminaire

Also Published As

Publication number Publication date
BR6906924D0 (pt) 1973-03-08
ES363449A1 (es) 1970-12-16
DE1911059A1 (de) 1969-09-25
FR2003348A1 (fr) 1969-11-07

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Legal Events

Date Code Title Description
AS Assignment

Owner name: COOPER INDUSTRIES INC 1001 FANNIN HOUSTON TX 77002

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:WESTINGHOUSE ELECTRIC CORPORATION;REEL/FRAME:004059/0357

Effective date: 19821001