CA2614182C - Dual-mode lighting device with magnetically mounted light diffuser - Google Patents
Dual-mode lighting device with magnetically mounted light diffuser Download PDFInfo
- Publication number
- CA2614182C CA2614182C CA 2614182 CA2614182A CA2614182C CA 2614182 C CA2614182 C CA 2614182C CA 2614182 CA2614182 CA 2614182 CA 2614182 A CA2614182 A CA 2614182A CA 2614182 C CA2614182 C CA 2614182C
- Authority
- CA
- Canada
- Prior art keywords
- diffuser
- assembly
- illumination
- light
- magnetic element
- 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 - Fee Related
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
- F21V17/10—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
- F21V17/105—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 magnets
-
- 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
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Fastening Of Light Sources Or Lamp Holders (AREA)
Abstract
.cndot. A lighting device comprises an illumination assembly and a diffuser assembly. The illumination assembly has a casing, a light source, and a magnetic element. The diffuser assembly has a planar translucent light diffuser, a mirror coating and a magnetic element. The light source of the illumination assembly is capable of generating downwardly directed light for a narrow angle of illumination. The translucent light diffuser of the diffuser assembly is capable of diffusing light for a wide angle of illumination. The mirror coating is capable of preventing light leakage from the translucent light diffuser by internal reflection. The diffuser assembly is capable of magnetically attaching to the illumination assembly. The diffuser assembly is capable of detaching from the illumination assembly when force is applied. This invention relates to lighting systems with light diffusers, and the principal use of the invention is for providing both task light illumination and room lighting.
Description
Description Title = Dual-Mode Lighting Device with Magnetically Mounted Light Diffuser Technical Field = This invention relates to lighting systems with light diffusers, more particularly to a lighting system with magnetically mounted light diffuser.
Background Art = There are many instances where it would be desirable to be able to have a dual-mode lighting device with magnetically mounted light diffuser.
= A number of patents disclose lighting systems with light diffusers.
= U.S. Patent 3 593 021 discloses "LIGHTING FIXTURE DIFFUSER
ASSEMBLY". The lighting fixture diffuser assembly includes a circular support member having an adhesive backing and an opposite face formed of magnetic material. A diffuser carrying an inwardly directed flange adjacent its open end and mounting a plurality of magnets on the flange is applied about the support member so that the diffuser is magnetically secured to the support member. In another form, the magnetic material is provided on the diffuser flange with the magnets being secured to the support member.
= These prior art arrangements do not have a dual-mode lighting device having a magnetically mounted planar translucent light diffuser with a mirror coating in order to prevent light leakage by internal reflection.
Description of the Invention = It is a primary object of the invention to provide a dual-mode lighting device with both task (reading) light illumination and room lighting.
= It is another object of the invention to provide a lighting device capable of generating downwardly directed light for a narrow angle of illumination.
= It is another object of the invention to provide a lighting device capable of diffusing light for a wide angle of illumination.
= It is another object of the invention to provide a lighting device having a magnetically mounted diffuser assembly which attaches to and detaches from an illumination assembly.
= It is another object of the invention to provide a planar translucent light diffuser with mirror coating in order to prevent light leakage by internal reflection.
= A lighting device comprises an illumination assembly and a diffuser assembly. The illumination assembly has a casing, a light source, and a magnetic element. The diffuser assembly has a planar translucent light diffuser, a mirror coating and a magnetic element. The light source of the illumination assembly is capable of generating downwardly directed light for a narrow angle of illumination. The translucent light diffuser of the diffuser assembly is capable of diffusing light for a wide angle of illumination. The mirror coating is capable of preventing light leakage from the translucent light diffuser by internal reflection. The diffuser assembly is capable of magnetically attaching to the illumination assembly. The diffuser assembly is capable of detaching from the illumination assembly when force is applied.
Brief Description of the Figures in the Drawings = In drawings which illustrate embodiments of the invention:
o Figure 1 is a perspective view of one embodiment of a lighting device according to the invention, showing task (reading) light illumination;
o Figure 2 is a perspective view of one embodiment of a lighting device according to the invention, showing room lighting;
o Figure 3 is a bottom view of the illumination assembly;
o Figure 4 is a sectional view of the illumination assembly;
o Figure 5 is a sectional view of the diffuser assembly;
o Figure 6 is a bottom view of the diffuser assembly; and o Figure 7 is a top view of the diffuser assembly.
Modes for Carrying Out the Invention = In one embodiment of the invention shown in Figure 1 (task light illumination) and in Figure 2 (room lighting), a lighting device for providing both task light illumination and room lighting comprises an illumination assembly 1-0 and a diffuser assembly 2-0.
= The illumination assembly 1-0 has a bottom portion. The illumination assembly 1-0 comprises a casing 1-1, a light source 1-2 and a magnetic element 1-3, as shown in Figure 3 (bottom view) and in Figure 4 (sectional view).
= The casing 1-1 has a bottom-central portion and a bottom-peripheral portion.
= The light source 1-2 is securely attached to the bottom-central portion of the casing 1-1.
= The magnetic element 1-3 is securely attached to the bottom-peripheral portion of the casing 1-1.
= The diffuser assembly 2-0 has a top portion. The diffuser assembly 2-0 comprises a planar translucent light diffuser 2-1, a mirror coating 2-2 and a magnetic element 2-3, as shown in Figure 5 (sectional view), in Figure 6 (bottom view) and in Figure 7 (top view).
= The translucent light diffuser 2-1 has a top portion and a bottom portion.
= The mirror coating 2-2 is applied to the top portion of the translucent light diffuser 2-1.
= The magnetic element 2-3 is securely attached to the top portion of the translucent light diffuser 2-1.
= According to the present invention, the light source 1-2 of the illumination assembly 1-0 is capable of generating downwardly directed light for a narrow angle of illumination.
= The translucent light diffuser 2-1 of the diffuser assembly 2-0 is capable of diffusing light for a wide angle of illumination.
= The mirror coating 2-2 of the diffuser assembly 2-0 is capable of preventing light leakage from the translucent light diffuser 2-1 of the diffuser assembly 2-0 by internal reflection.
= Magnetic attraction force between the magnetic element 2-3 of the diffuser assembly 2-0 and the magnetic element 1-3 of the illumination assembly 1-0 is exerted when the diffuser assembly 2-0 is placed in proximity to the illumination assembly 1-0.
= The top portion of the diffuser assembly 2-0 is capable of magnetically attaching to the bottom portion of the illumination assembly 1-0.
= The top portion of the diffuser assembly 2-0 is capable of detaching from the bottom portion of the illumination assembly 1-0 when force is applied to the diffuser assembly 2-0.
= Preferably, the light source 1-2 of the illumination assembly 1-0 is a high-efficiency light-emitting diode.
= Preferably, the translucent light diffuser 2-1 of the diffuser assembly 2-0 is disc-shaped.
= The translucent light diffuser 2-1 of the diffuser assembly 2-0 may be made of a plastic material, such as Acrylonitrile-Butadiene-Styrene (ABS). Alternatively, the translucent light diffuser 2-1 of the diffuser assembly 2-0 may be made of a glass material.
= The magnetic element 1-3 of the illumination assembly 1-0 may be made of a permanent magnet, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a permanent magnet. Alternatively, the magnetic element 1-3 of the illumination assembly 1-0 may be made of a permanent magnet, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a ferromagnetic material. Alternatively, the magnetic element 1-3 of the illumination assembly 1-0 may be made of a ferromagnetic material, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a permanent magnet.
= Preferably, the permanent magnet is made of a rare-earth magnet.
Background Art = There are many instances where it would be desirable to be able to have a dual-mode lighting device with magnetically mounted light diffuser.
= A number of patents disclose lighting systems with light diffusers.
= U.S. Patent 3 593 021 discloses "LIGHTING FIXTURE DIFFUSER
ASSEMBLY". The lighting fixture diffuser assembly includes a circular support member having an adhesive backing and an opposite face formed of magnetic material. A diffuser carrying an inwardly directed flange adjacent its open end and mounting a plurality of magnets on the flange is applied about the support member so that the diffuser is magnetically secured to the support member. In another form, the magnetic material is provided on the diffuser flange with the magnets being secured to the support member.
= These prior art arrangements do not have a dual-mode lighting device having a magnetically mounted planar translucent light diffuser with a mirror coating in order to prevent light leakage by internal reflection.
Description of the Invention = It is a primary object of the invention to provide a dual-mode lighting device with both task (reading) light illumination and room lighting.
= It is another object of the invention to provide a lighting device capable of generating downwardly directed light for a narrow angle of illumination.
= It is another object of the invention to provide a lighting device capable of diffusing light for a wide angle of illumination.
= It is another object of the invention to provide a lighting device having a magnetically mounted diffuser assembly which attaches to and detaches from an illumination assembly.
= It is another object of the invention to provide a planar translucent light diffuser with mirror coating in order to prevent light leakage by internal reflection.
= A lighting device comprises an illumination assembly and a diffuser assembly. The illumination assembly has a casing, a light source, and a magnetic element. The diffuser assembly has a planar translucent light diffuser, a mirror coating and a magnetic element. The light source of the illumination assembly is capable of generating downwardly directed light for a narrow angle of illumination. The translucent light diffuser of the diffuser assembly is capable of diffusing light for a wide angle of illumination. The mirror coating is capable of preventing light leakage from the translucent light diffuser by internal reflection. The diffuser assembly is capable of magnetically attaching to the illumination assembly. The diffuser assembly is capable of detaching from the illumination assembly when force is applied.
Brief Description of the Figures in the Drawings = In drawings which illustrate embodiments of the invention:
o Figure 1 is a perspective view of one embodiment of a lighting device according to the invention, showing task (reading) light illumination;
o Figure 2 is a perspective view of one embodiment of a lighting device according to the invention, showing room lighting;
o Figure 3 is a bottom view of the illumination assembly;
o Figure 4 is a sectional view of the illumination assembly;
o Figure 5 is a sectional view of the diffuser assembly;
o Figure 6 is a bottom view of the diffuser assembly; and o Figure 7 is a top view of the diffuser assembly.
Modes for Carrying Out the Invention = In one embodiment of the invention shown in Figure 1 (task light illumination) and in Figure 2 (room lighting), a lighting device for providing both task light illumination and room lighting comprises an illumination assembly 1-0 and a diffuser assembly 2-0.
= The illumination assembly 1-0 has a bottom portion. The illumination assembly 1-0 comprises a casing 1-1, a light source 1-2 and a magnetic element 1-3, as shown in Figure 3 (bottom view) and in Figure 4 (sectional view).
= The casing 1-1 has a bottom-central portion and a bottom-peripheral portion.
= The light source 1-2 is securely attached to the bottom-central portion of the casing 1-1.
= The magnetic element 1-3 is securely attached to the bottom-peripheral portion of the casing 1-1.
= The diffuser assembly 2-0 has a top portion. The diffuser assembly 2-0 comprises a planar translucent light diffuser 2-1, a mirror coating 2-2 and a magnetic element 2-3, as shown in Figure 5 (sectional view), in Figure 6 (bottom view) and in Figure 7 (top view).
= The translucent light diffuser 2-1 has a top portion and a bottom portion.
= The mirror coating 2-2 is applied to the top portion of the translucent light diffuser 2-1.
= The magnetic element 2-3 is securely attached to the top portion of the translucent light diffuser 2-1.
= According to the present invention, the light source 1-2 of the illumination assembly 1-0 is capable of generating downwardly directed light for a narrow angle of illumination.
= The translucent light diffuser 2-1 of the diffuser assembly 2-0 is capable of diffusing light for a wide angle of illumination.
= The mirror coating 2-2 of the diffuser assembly 2-0 is capable of preventing light leakage from the translucent light diffuser 2-1 of the diffuser assembly 2-0 by internal reflection.
= Magnetic attraction force between the magnetic element 2-3 of the diffuser assembly 2-0 and the magnetic element 1-3 of the illumination assembly 1-0 is exerted when the diffuser assembly 2-0 is placed in proximity to the illumination assembly 1-0.
= The top portion of the diffuser assembly 2-0 is capable of magnetically attaching to the bottom portion of the illumination assembly 1-0.
= The top portion of the diffuser assembly 2-0 is capable of detaching from the bottom portion of the illumination assembly 1-0 when force is applied to the diffuser assembly 2-0.
= Preferably, the light source 1-2 of the illumination assembly 1-0 is a high-efficiency light-emitting diode.
= Preferably, the translucent light diffuser 2-1 of the diffuser assembly 2-0 is disc-shaped.
= The translucent light diffuser 2-1 of the diffuser assembly 2-0 may be made of a plastic material, such as Acrylonitrile-Butadiene-Styrene (ABS). Alternatively, the translucent light diffuser 2-1 of the diffuser assembly 2-0 may be made of a glass material.
= The magnetic element 1-3 of the illumination assembly 1-0 may be made of a permanent magnet, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a permanent magnet. Alternatively, the magnetic element 1-3 of the illumination assembly 1-0 may be made of a permanent magnet, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a ferromagnetic material. Alternatively, the magnetic element 1-3 of the illumination assembly 1-0 may be made of a ferromagnetic material, and the magnetic element 2-3 of the diffuser assembly 2-0 may be made of a permanent magnet.
= Preferably, the permanent magnet is made of a rare-earth magnet.
Claims (9)
1. A lighting device for providing both task light illumination and room lighting, comprising:
~ an illumination assembly having a bottom portion, comprising:
~ a casing having a bottom-central portion and a bottom-peripheral portion;
~ a light source securely attached to the bottom-central portion of the casing; and ~ a magnetic element securely attached to the bottom-peripheral portion of the casing; and ~ a diffuser assembly having a top portion, comprising:
~ a planar translucent light diffuser having a top portion and a bottom portion;
~ a mirror coating applied to the top portion of the translucent light diffuser; and ~ a magnetic element securely attached to the top portion of the translucent light diffuser;
the light source of the illumination assembly being capable of generating downwardly directed light for a narrow angle of illumination, the translucent light diffuser of the diffuser assembly being capable of diffusing light for a wide angle of illumination, the mirror coating of the diffuser assembly being capable of preventing light leakage from the translucent light diffuser of the diffuser assembly by internal reflection, magnetic attraction force between the magnetic element of the diffuser assembly and the magnetic element of the illumination assembly being exerted when the diffuser assembly is placed in proximity to the illumination assembly, the top portion of the diffuser assembly being capable of magnetically attaching to the bottom portion of the illumination assembly, the top portion of the diffuser assembly being capable of detaching from the bottom portion of the illumination assembly when force is applied to the diffuser assembly.
~ an illumination assembly having a bottom portion, comprising:
~ a casing having a bottom-central portion and a bottom-peripheral portion;
~ a light source securely attached to the bottom-central portion of the casing; and ~ a magnetic element securely attached to the bottom-peripheral portion of the casing; and ~ a diffuser assembly having a top portion, comprising:
~ a planar translucent light diffuser having a top portion and a bottom portion;
~ a mirror coating applied to the top portion of the translucent light diffuser; and ~ a magnetic element securely attached to the top portion of the translucent light diffuser;
the light source of the illumination assembly being capable of generating downwardly directed light for a narrow angle of illumination, the translucent light diffuser of the diffuser assembly being capable of diffusing light for a wide angle of illumination, the mirror coating of the diffuser assembly being capable of preventing light leakage from the translucent light diffuser of the diffuser assembly by internal reflection, magnetic attraction force between the magnetic element of the diffuser assembly and the magnetic element of the illumination assembly being exerted when the diffuser assembly is placed in proximity to the illumination assembly, the top portion of the diffuser assembly being capable of magnetically attaching to the bottom portion of the illumination assembly, the top portion of the diffuser assembly being capable of detaching from the bottom portion of the illumination assembly when force is applied to the diffuser assembly.
2. The lighting device as defined in claim 1, in which the light source of the illumination assembly is a high-efficiency light-emitting diode.
3. The lighting device as defined in claim 1, in which the translucent light diffuser of the diffuser assembly is disc-shaped.
4. The lighting device as defined in claim 1, in which the translucent light diffuser of the diffuser assembly is made of a plastic material.
5. The lighting device as defined in claim 1, in which the translucent light diffuser of the diffuser assembly is made of a glass material.
6. The lighting device as defined in claim 1, in which the magnetic element of the illumination assembly is made of a permanent magnet, and the magnetic element of the diffuser assembly is made of a permanent magnet.
7. The lighting device as defined in claim 1, in which the magnetic element of the illumination assembly is made of a permanent magnet, and the magnetic element of the diffuser assembly is made of a ferromagnetic material.
8. The lighting device as defined in claim 1, in which the magnetic element of the illumination assembly is made of a ferromagnetic material, and the magnetic element of the diffuser assembly is made of a permanent magnet.
9. The lighting device as defined in claim 6 or claim 7 or claim 8, in which the permanent magnet is made of a rare-earth magnet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2614182 CA2614182C (en) | 2008-01-07 | 2008-01-07 | Dual-mode lighting device with magnetically mounted light diffuser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2614182 CA2614182C (en) | 2008-01-07 | 2008-01-07 | Dual-mode lighting device with magnetically mounted light diffuser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2614182A1 CA2614182A1 (en) | 2009-07-07 |
| CA2614182C true CA2614182C (en) | 2013-06-25 |
Family
ID=40848302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2614182 Expired - Fee Related CA2614182C (en) | 2008-01-07 | 2008-01-07 | Dual-mode lighting device with magnetically mounted light diffuser |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2614182C (en) |
-
2008
- 2008-01-07 CA CA 2614182 patent/CA2614182C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CA2614182A1 (en) | 2009-07-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10539279B2 (en) | Systems for detachably mounting lighting components and for covering wiring | |
| JP6603223B2 (en) | Lighting device and manufacturing method | |
| TW200915246A (en) | Display device | |
| CN106678632B (en) | Optical module, lighting module and lighting lamp | |
| US20120069587A1 (en) | Magnetic Light Clip | |
| JP6009721B1 (en) | Holder for holding carrier, lighting module, lighting fixture, and method for manufacturing holder for lighting module | |
| GB2450569A (en) | Shade attachment for a recessed light fitting | |
| JP2014149972A (en) | Lighting fixture | |
| CA2614182C (en) | Dual-mode lighting device with magnetically mounted light diffuser | |
| ATE550604T1 (en) | LUMINAIRE WITH LOCKING MEANS FOR DETACHABLE ATTACHING A COVER TO A HOUSING TRAY | |
| US11994271B2 (en) | Illumination module with annular circuit board and magnetic supports | |
| JP2010514113A (en) | Device for lighting means | |
| JP6735616B2 (en) | Indicator light | |
| CN105318260B (en) | decorative lamp | |
| KR200394691Y1 (en) | An illumination apparatus for fixture | |
| US10082276B2 (en) | Installation mechanism of LED lighting | |
| CN201935135U (en) | Plastic clip for lamp tube | |
| JP3166715U (en) | Fall prevention tool for straight tube lighting | |
| CN105351864B (en) | Magnetic suspension lamps and lanterns | |
| CN216244101U (en) | Multilayer luminous lampshade assembly and ceiling lamp | |
| CN202855232U (en) | Magnetic light box with improved structure | |
| CN209839774U (en) | Waterproof hard lamp strip of LED | |
| US20140268805A1 (en) | Illuminating device | |
| CN215061843U (en) | Modular lens and lighting lamp | |
| CN210424645U (en) | Formula showcase lamp is inhaled to magnetism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |
Effective date: 20150107 |