To provide a lighting apparatus, capable of making the cylinder emit light uniformly as a whole, by guiding the light up to the tip part of the lighting apparatus, while suppressing attenuation of light emitted from the light-emitting part into the cylinder of the lighting apparatus.
The guiding light 10 is constituted of a lighting body 12 and a battery case 14, which is connected to this lighting body as a gripping part. The lighting body 12 is constituted of a cylinder 16 of a circular cylindrical shape, and a light-emitting part 18 installed at one end of the cylinder 16. The cylinder 16 is constituted of an outer tube 20, a prism sheet 22 installed inside the outer tube 20, a lens sheet 24 installed inside the prism sheet 22, an upper cover 26 provided at one end side of the cylinder 16, and a reflecting member 28 installed in the upper cover 26. The lens sheet 24 has plural number of prisms 24a of triangular pillar-shape, formed on the surface partitioned by a plurality of prism channels 24b, in parallel with the circumferential direction of the cylinder 16.
ONO MASAYUKI
| JPH023601A | 1990-01-09 | |||
| JPH0368834U | 1991-07-08 | |||
| JPS4967600A | 1974-07-01 | |||
| JPH0432888A | 1992-02-04 | |||
| JP2002175701A | 2002-06-21 | |||
| JPH0297711A | 1990-04-10 |
Masashi Hirai
Kozu Sako
Tadashi Aihara
Next Patent: FLEXIBLE PRINTED CIRCUIT ADAPTER WITH SHIELD