Ornamental lighting device

• US 4,510,555 A
• Filed: 02/27/1984
• Issued: 04/09/1985
• Est. Priority Date: 02/27/1984
• Status: Expired due to Fees

• Current Assignee: Kei Mori
• Original Assignee: Kei Mori
• Inventors: Mori, Kei
• Primary Examiner(s): Lechert, Jr., Stephen J.
• Application Number:
  US06/584,270
• Time in Patent Office: 407 Days
• Field of Search: 362/32, 362/252, 362/307, 362/308, 362/311, 362/329, 362/330, 362/335, 362/339, 362/806
• US Class Current: 362/565
• CPC Class Codes: F21S 6/002 Table lamps, e.g. for ambient lighting
• CPC Class Codes: F21W 2121/00 Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: G02B 6/0008 the light being emitted at the end of the fibre
• CPC Class Codes: Y10S 362/806 Ornamental or decorative

Abstract

An ornamental lighting device includes a plurality of optical fibers to which condensed light from a light source is distributed through a fiber optic cable. The optical fibers are arranged parallel to each other and held between a pair of light transmitting panels, which are rigidly mounted on a pedestal. Light propagating through the optical fibers is radiated through the light transmitting panels to the ambience. A plurality of such lighting devices may be arranged side by side and supplied by a common light source.

Claims

1. An ornamental lighting device for radiating condensed light which propagates through a fiber optic cable, comprising:

a pedestal;

a plurality of optical fibers supported by said pedestal and optically coupled with the fiber optic cable to be supplied with the condensed light;

retainer means for retaining said optical fibers substantially parallel to each other and at a predetermining spacing from each other; and

a pair of light transmitting panels mounted on the pedestal and mounting said retainer means to hold the parallel optical fibers in sandwich array between said light transmitting panels.

2. An ornamental lighting device as claimed in claim 1, in which the pedestal is formed with a duct therein, the fiber optic cable being optically coupled with the optical fibers through said duct.

3. An ornamental lighting device as claimed in claim 2, in which the duct extends throughout the pedestal, another fiber optic cable being passed through said duct to distribute light to another ornamental lighting device.

4. An ornamental lighting device as claimed in claim 1, in which the retainer means comprises at least two retainer members mounted on inner surfaces of the facing light transmitting panels.

5. An ornamental lighting device as claimed in claim 1, in which the retainer means comprises guide grooves formed in an inner surface of at least one of the light transmitting panels, the optical fibers being individually received in said guide grooves.

6. An ornamental lighting device as claimed in claim 1, in which an inner surface of one of the facing light transmitting panels is a mirror surface.

7. An ornamental lighting device as claimed in claim 1, in which each of the optical fibers is provided with light diffusing means for diffusing light which propagates through the optical fiber.

8. An ornamental lighting device as claimed in claim 7, in which the light diffusing means comprises a light diffusing material deposited on the optical fiber and having a refractive index which is larger than a refractive index of the optical fiber.

9. An ornamental lighting device as claimed in claim 7, in which the light diffusing means comprises grooves formed in a surface of the optical fiber.

10. An ornamental lighting device for radiating condensed light which propagates through a fiber optic cable, comprising:

a pedestal;

a single optical fiber supported by said pedestal and optically coupled with the fiber optic cable to be supplied with the condensed light;

retainer means for retaining said optical fiber in a spiral form; and

a pair of light transmitting panels mounted on the pedestal and mounting said retainer means to hold said optical fiber in sandwich array between said light transmitting panels.

11. An ornamental lighting device as claimed in claim 10, in which the retainer means comprises a pair of generally cruciform retainer members.

12. An ornamental lighting device for radiating condensed light which propagates through a fiber optical cable, comprising:

a pedestal;

a plurality of optical fibers supported by said pedestal and optically coupled with the fiber optic cable to be supplied with the condensed light;

retainer means for retaining said optical fibers substantially in oblong loops each of which is substantially symmetrical with respect to a vertical which apsses through the pedestal;

and

a pair of light transmitting panels mounted on the pedestal and mounting said retainer means to hold the optical fibers in sandwich array between said light transmitting panels.