Title:
ILLUMINATION DEVICE OF ZERO-GRADE HAZARDOUS PLACE FOR VESSEL
Document Type and Number:
Japanese Patent JP2010186662
Kind Code:
A
Abstract:
To provide an illumination device to illuminate a zero-grade hazardous place for a vessel.
Through-holes 17 are bored in a deck 16 which separates the zero-grade hazardous place and a second-grade hazardous place. An optical fiber 21 is inserted into each through-hole 17, and an irradiation portion 22 is installed at an output end of the optical fiber 21 in the zero-grade hazardous place. The through-hole 17 is air-tightly sealed off with a seal portion 25. The optical fiber 21 is arranged on the deck 16, and its incident end is connected to a light-focusing portion 23 formed in the second-grade hazardous place. A light source device 24 with a flameproof structure is arranged faced to the light-focusing portion 23.
Inventors:
TERAMOTO SACHINARI
Application Number:
JP2009030756A
Publication Date:
August 26, 2010
Filing Date:
February 13, 2009
Export Citation:
Assignee:
MITSUI SHIPBUILDING ENG
International Classes:
F21V8/00; B63B45/06; F21V25/12; G02B6/00; F21Y101/00
Attorney, Agent or Firm:
Takashi Matsuura
Hiroki Ogura
Tsuyoshi Nonaka
Shigeru Torayama
Tsubouchi Shin
Hiroki Ogura
Tsuyoshi Nonaka
Shigeru Torayama
Tsubouchi Shin
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