GB2177488A - Diffuser, lampshade and frame for use with a compact fluorescent lamp - Google Patents

Diffuser, lampshade and frame for use with a compact fluorescent lamp Download PDF

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Publication number
GB2177488A
GB2177488A GB08615331A GB8615331A GB2177488A GB 2177488 A GB2177488 A GB 2177488A GB 08615331 A GB08615331 A GB 08615331A GB 8615331 A GB8615331 A GB 8615331A GB 2177488 A GB2177488 A GB 2177488A
Authority
GB
United Kingdom
Prior art keywords
diffuser
lamp
frame
lampshade
ofthe
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.)
Withdrawn
Application number
GB08615331A
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GB8615331D0 (en
Inventor
Amanda Tetta Vines
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB8615331D0 publication Critical patent/GB8615331D0/en
Publication of GB2177488A publication Critical patent/GB2177488A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S6/00—Lighting devices intended to be free-standing
    • F21S6/002—Table lamps, e.g. for ambient lighting
    • 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
    • F21S8/04—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures
    • F21S8/06—Lighting devices intended for fixed installation intended only for mounting on a ceiling or the like overhead structures by suspension
    • 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
    • F21V1/00—Shades for light sources, i.e. lampshades for table, floor, wall or ceiling lamps
    • 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
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • F21V17/102—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening using gravity or suction
    • 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
    • F21V3/00—Globes; Bowls; Cover glasses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/30—Elongate light sources, e.g. fluorescent tubes curved
    • F21Y2103/37—U-shaped
    • 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
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

A diffuser, suspended and located by means of a frame on a compact fluorescent lamp, conceals both lamp and lampholder while diffusing the light of the lamp. A lampshade with another similar frame may slip over the end of the lamp and wedge the diffuser in place while centralising the lamp inside the diffuser and lampshade. <IMAGE>

Description

SPECIFICATION Diffuser, lampshade and frame for use with a compact fluorescent lamp This invention relates to a diffuser and lampshade system.
Compact fluorescent lamps last, on average, five times as long as a conventional GLS lamp; they use a quarter of the electricity and give off hardly any heat.
They have parallel fluorescenttubes, varying in length according to wattage. Some lamps have integral ballast, while with others it is remote. The manufacturers state that the light gives 'good colour rendering', however, the effect ofthe light is harsh and does not provide the soft atmosphere required in places where people relax.
My invention consists of a diffuser, lampshade and frame. Ittakesfull advantage of the cool ness of the compact fluorescent lamp, filters out the harshness and provides the soft light necessary if the lamp isto be used sucessfully in restaurants, pubs, hotels, clubs and in peoples homes. It includes a method of centralising the lamp inside the diffuser and lampshade while suspending bothfromthependantlampholder.
According to the present invention there is provided a lighting unit comprising a compact elongate fluorescent lamp received in a socket and, supported around the lamp, an elongate diffuser having a length at least as great as the length ofthe lamp thereby to conceal the lamp and diffuse light emitted from the lamp, the diffuser being provided, internally of its length, with a first frame element by which the diffuser is located about and spaced from the lamp.
Specific embodiments of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 shows a compactfluorescent lamp and lampholder.
Figure2 shows two frames Figure 3 illustrates the two frames fixed to a diffuser when used on its own without a lampshade.
Figure 4 shows a diffuser with one frame for use with Figure5a lampshadewith asecondframe.
Figure 6shows a squat diffuser and lampshade where only one frame is necessary; the lampshade is bound to the top of the diffuser.
Figure 7shows how Figure 4 and Figure 5fit together on Figure 1.
Figure8showsan exampleoftheframeadaptedto pendant situations with a freely swivelling prong.
Figure 9 shows a featu re larger i n diameter than the diffuser suspended from the end ofthe lamp, thus holding the diffuser and lampshade in place.
Figure 10 shows a pendant diffuser with releasable attachment securing it and a lampshadeto the pendant lampholder.
Figure 11 shows this same releaseable attachment holding three lampshades.
Uprightsituations The translucent diffuser, Figures 3 and 4, consists of an element which may, for example, betubularor bulbous, but which conceals the lamp completely, exceptforthe opening above the end ofthe lamp. itis held in place by means of two similar frames, Figure 2. The outer ring 2 of the lower frame is fixed to the bottom edge of the diffuser material 3. This outer ring 2 is connected to an inner ring 4which slips overthe lamp and rests on the base ofthe lamp 1. Thisframe enables the diffuser to be suspended just above the base ofthe lampholder, allowing a small gap through which aircan flow 5. Theframe also centralisesthe lamp at the bottom of the diffuser.
Where the lamp is very short and the diffusercor- respondingly squat, it is not necessary to use a second frame, Figure 6. The lampshade can be fixed directly to the top edge of the diffuser.
In other situations, the diffuser is held vertical and the lamp centralised along its length by a similar frame atthetop 6. This frame is turned upside down and the outer ring 7 fixed to one of two alternative rims: 1. With reference to Figure 3, if a diffuser only is used, without a Iampshade over, the frame is fixed to the top edge ofthe diffuser material 8, the inner ring slipping overthetop of the lamp.
2. With reference to Figures 4,5 and 6, if a lamp shade is used, a plain ring is fixed to thetop edge of the diffuser 9, the frame is fixed to the top edge of the lampshade 10, and the inner ring slipped overthe lamp 11, insidethe diffuser. The lampshade and attached frame thus wedge the diffuser into place, Figure7.
Pendantsituations Of three embodiments for pendant situations, two are suspended by different methods from the lamp, and onefromthe pendantlampholder.
In thefirst example, with referenceto Figure 8, on the lowerframe only, a freely swivelling prong 12 is attached to one side ofthe inner ring 4. When the frame is slipped overthe end ofthe lamp, the prong is swivelled to pass between thefluorescenttubes and rest against the underside of the opposite side of the inner ring 13. The diffuser (and lampshade if used) are now suspended from the end of the lamp.
The second example, with reference to Figure 9, involves suspension from the end ofthe lamp by means of a feature 14. After the diffuser is slipped over the lamp, the feature 14 is affixed to the end of the lamp 15. The feature being largerthanthediameter of the diffuser, it keeps the diffuser (and lampshade if used) in place.
The third example, with reference to Figure 10, involves the releasable attachment of diffuser to pen dant lampholder. A lampshade with a plain ring attop 1 can be securely held between these two. The method of releasable attachment can be adjustableto allow for several layers of lampshade, Figure 11 .The diffuser has a frame attached to its lower edge 17 to centralisethe lamp, this being achieved atthetop by attachmenttothe pendant lampholder.
1. Alighting unitcomprising acompactelongate fluorescent lamp received in a socket and, supported around the lamp, an elongate diffuser having a length
**WARNING** end of DESC field may overlap start of CLMS **.

Claims (15)

**WARNING** start of CLMS field may overlap end of DESC **. SPECIFICATION Diffuser, lampshade and frame for use with a compact fluorescent lamp This invention relates to a diffuser and lampshade system. Compact fluorescent lamps last, on average, five times as long as a conventional GLS lamp; they use a quarter of the electricity and give off hardly any heat. They have parallel fluorescenttubes, varying in length according to wattage. Some lamps have integral ballast, while with others it is remote. The manufacturers state that the light gives 'good colour rendering', however, the effect ofthe light is harsh and does not provide the soft atmosphere required in places where people relax. My invention consists of a diffuser, lampshade and frame. Ittakesfull advantage of the cool ness of the compact fluorescent lamp, filters out the harshness and provides the soft light necessary if the lamp isto be used sucessfully in restaurants, pubs, hotels, clubs and in peoples homes. It includes a method of centralising the lamp inside the diffuser and lampshade while suspending bothfromthependantlampholder. According to the present invention there is provided a lighting unit comprising a compact elongate fluorescent lamp received in a socket and, supported around the lamp, an elongate diffuser having a length at least as great as the length ofthe lamp thereby to conceal the lamp and diffuse light emitted from the lamp, the diffuser being provided, internally of its length, with a first frame element by which the diffuser is located about and spaced from the lamp. Specific embodiments of the invention will now be described by way of example with reference to the accompanying drawings in which: Figure 1 shows a compactfluorescent lamp and lampholder. Figure2 shows two frames Figure 3 illustrates the two frames fixed to a diffuser when used on its own without a lampshade. Figure 4 shows a diffuser with one frame for use with Figure5a lampshadewith asecondframe. Figure 6shows a squat diffuser and lampshade where only one frame is necessary; the lampshade is bound to the top of the diffuser. Figure 7shows how Figure 4 and Figure 5fit together on Figure 1. Figure8showsan exampleoftheframeadaptedto pendant situations with a freely swivelling prong. Figure 9 shows a featu re larger i n diameter than the diffuser suspended from the end ofthe lamp, thus holding the diffuser and lampshade in place. Figure 10 shows a pendant diffuser with releasable attachment securing it and a lampshadeto the pendant lampholder. Figure 11 shows this same releaseable attachment holding three lampshades. Uprightsituations The translucent diffuser, Figures 3 and 4, consists of an element which may, for example, betubularor bulbous, but which conceals the lamp completely, exceptforthe opening above the end ofthe lamp. itis held in place by means of two similar frames, Figure 2. The outer ring 2 of the lower frame is fixed to the bottom edge of the diffuser material 3. This outer ring 2 is connected to an inner ring 4which slips overthe lamp and rests on the base ofthe lamp 1. Thisframe enables the diffuser to be suspended just above the base ofthe lampholder, allowing a small gap through which aircan flow 5. Theframe also centralisesthe lamp at the bottom of the diffuser. Where the lamp is very short and the diffusercor- respondingly squat, it is not necessary to use a second frame, Figure 6. The lampshade can be fixed directly to the top edge of the diffuser. In other situations, the diffuser is held vertical and the lamp centralised along its length by a similar frame atthetop 6. This frame is turned upside down and the outer ring 7 fixed to one of two alternative rims: 1. With reference to Figure 3, if a diffuser only is used, without a Iampshade over, the frame is fixed to the top edge ofthe diffuser material 8, the inner ring slipping overthetop of the lamp. 2. With reference to Figures 4,5 and 6, if a lamp shade is used, a plain ring is fixed to thetop edge of the diffuser 9, the frame is fixed to the top edge of the lampshade 10, and the inner ring slipped overthe lamp 11, insidethe diffuser. The lampshade and attached frame thus wedge the diffuser into place, Figure7. Pendantsituations Of three embodiments for pendant situations, two are suspended by different methods from the lamp, and onefromthe pendantlampholder. In thefirst example, with referenceto Figure 8, on the lowerframe only, a freely swivelling prong 12 is attached to one side ofthe inner ring 4. When the frame is slipped overthe end ofthe lamp, the prong is swivelled to pass between thefluorescenttubes and rest against the underside of the opposite side of the inner ring 13. The diffuser (and lampshade if used) are now suspended from the end of the lamp. The second example, with reference to Figure 9, involves suspension from the end ofthe lamp by means of a feature 14. After the diffuser is slipped over the lamp, the feature 14 is affixed to the end of the lamp 15. The feature being largerthanthediameter of the diffuser, it keeps the diffuser (and lampshade if used) in place. The third example, with reference to Figure 10, involves the releasable attachment of diffuser to pen dant lampholder. A lampshade with a plain ring attop 1 can be securely held between these two. The method of releasable attachment can be adjustableto allow for several layers of lampshade, Figure 11 .The diffuser has a frame attached to its lower edge 17 to centralisethe lamp, this being achieved atthetop by attachmenttothe pendant lampholder. CLAIMS
1. Alighting unitcomprising acompactelongate fluorescent lamp received in a socket and, supported around the lamp, an elongate diffuser having a length atleastasgreatasthelength ofthe lamp therebyto conceal the lamp and diffuse light emitted from the Iamprthe diffuser being provided, internally of its length, with a first frame element by which the diffuser is located about and spaced from the lamp.
2. A lighting unitaccording to Claim 1,wherein the first frame element is situated at one end region of the diffuser.
3. A lighting unit according to Claim 1 or 2,wherein the diffuser is secured to the socket by a fixing means.
4. A lighting unit according to Claim 1 or2, where- in the diffuser is supported on the socket by the first frame element.
5. A lighting unit according to Claim 1 or2,where- in the diffuser is supported on the lamp by the first frame element.
6. A lighting unit according to Claim 1 or2,wherein the diffuser is supported by the lamp by means of a second frame element which includes a projection which is received in an aperture in the lamp.
7. A lighting unit according to Claim 6, wherein the second frame element is integral with the diffuser.
8. A lighting unit according to Claim 6 in which the lamp is suspended below the socket, wherein the second frame element, which supports the diffuser at a lower end region ofthe diffuser has an enlarged portion of a width greaterthan the width of the diffus erthe diffuser resting ontheenlargedportionofthe second frame element.
9. Alighting unit according to Claim 2 or any one ofClaims 3 to 5 when appendantto Clai m 2, fu rther comprising a second frame element at the other end region of the diffuser, said second frame element serving to locatethe diffuseraboutthe lamp and space the lam p from the diffuser.
10. A lighting unit according to any preceding claim, wherein the or each of the frame elements comprises at least one strut attached to said diffuser, the strut supporting a loop defining an opening, which opening is of such a size and shape to fit around a cross section ofthe lamp without significant play.
11. A lighting unit according to Claim 10, wherein the opening is oval shaped.
12. Alighting unitaccording to any preceding claim, wherein the or each frame element is metal.
13. A lighting unitaccording to any preceding claim,further including one or more lamp shades.
14. A lighting unit according to Claim 13,wherein the lamp shade is adapted to rest on the diffuser, the shade being provided with a frame element to assist in locating the shade and spacing the diffuser and the lamp.
15. A lighting unit substantially as herein before described with reference to the accompanying drawings.
GB08615331A 1985-06-27 1986-06-24 Diffuser, lampshade and frame for use with a compact fluorescent lamp Withdrawn GB2177488A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858516263A GB8516263D0 (en) 1985-06-27 1985-06-27 Diffuser lampshade

Publications (2)

Publication Number Publication Date
GB8615331D0 GB8615331D0 (en) 1986-07-30
GB2177488A true GB2177488A (en) 1987-01-21

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Family Applications (2)

Application Number Title Priority Date Filing Date
GB858516263A Pending GB8516263D0 (en) 1985-06-27 1985-06-27 Diffuser lampshade
GB08615331A Withdrawn GB2177488A (en) 1985-06-27 1986-06-24 Diffuser, lampshade and frame for use with a compact fluorescent lamp

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858516263A Pending GB8516263D0 (en) 1985-06-27 1985-06-27 Diffuser lampshade

Country Status (1)

Country Link
GB (2) GB8516263D0 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008075A1 (en) * 1990-11-02 1992-05-14 Leo Anker Jensen A light diffusion device
US5392204A (en) * 1993-11-04 1995-02-21 Adjustable Fixtures Co. Lamp having a diffuser and shade
GB2284044A (en) * 1993-11-17 1995-05-24 Speights Limited Improvements relating to lamp shade fitting
WO1995014883A1 (en) * 1993-11-29 1995-06-01 Munther Joergen An adaptor to be placed on low-energy luminous tubes, and the use of the adaptor
NL9500617A (en) * 1995-03-31 1996-11-01 Lumiance Bv Lamp fitting, and lamp cap suitable for such a lamp fitting
WO1999043984A1 (en) * 1998-02-25 1999-09-02 Anders Arlborg An adapter device arrangement to be provided on a lamp
WO2009054903A1 (en) * 2007-10-23 2009-04-30 Adaptive Lighting Solutions Llc Cover device for compact flourescent lamps

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB720999A (en) * 1952-12-22 1954-12-29 Arnold Whg A new or improved shade assembly for light sources of tubular shape
GB1236391A (en) * 1967-06-16 1971-06-23 David Jakob Hans Lesser Improvements in or relating to standard lamps

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB720999A (en) * 1952-12-22 1954-12-29 Arnold Whg A new or improved shade assembly for light sources of tubular shape
GB1236391A (en) * 1967-06-16 1971-06-23 David Jakob Hans Lesser Improvements in or relating to standard lamps

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992008075A1 (en) * 1990-11-02 1992-05-14 Leo Anker Jensen A light diffusion device
US5392204A (en) * 1993-11-04 1995-02-21 Adjustable Fixtures Co. Lamp having a diffuser and shade
GB2284044A (en) * 1993-11-17 1995-05-24 Speights Limited Improvements relating to lamp shade fitting
WO1995014883A1 (en) * 1993-11-29 1995-06-01 Munther Joergen An adaptor to be placed on low-energy luminous tubes, and the use of the adaptor
NL9500617A (en) * 1995-03-31 1996-11-01 Lumiance Bv Lamp fitting, and lamp cap suitable for such a lamp fitting
WO1999043984A1 (en) * 1998-02-25 1999-09-02 Anders Arlborg An adapter device arrangement to be provided on a lamp
WO2009054903A1 (en) * 2007-10-23 2009-04-30 Adaptive Lighting Solutions Llc Cover device for compact flourescent lamps
US7798674B2 (en) 2007-10-23 2010-09-21 Adaptive Lighting Solutions Llc. Cover device for compact flourescent lamps

Also Published As

Publication number Publication date
GB8516263D0 (en) 1985-07-31
GB8615331D0 (en) 1986-07-30

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