To provide an explosion-proof fluorescent luminaire which is lightweight and whose installing-replacing work is easy and which is excellent in a light distribution characteristic by housing a compact fluorescent lamp, an automatic lighting circuit, a ballast or the like in a vessel composed of a pressure case and tempered glass.
When a luminaire 1 is assembled, first of all, a ballast support plate 2b is fastened to an upper end surface of a tempered glass vessel 3 by an annular screw ring 2a through a sealing material 16. At this time, a ballast 5 and a socket 9 surrounded by a heat insulating material 10 are fixed to the support plate 2b, and a small and compact fluorescent lamp 4 is fitted from below. The screw ring 2a is screw-fitted to the inside of a pressure case 2 through a sealing material 17, and is fixed by a machine screw 2c. A photoswitch 7 is provided inside an upper part of the vessel 3, and the fluorescent lamp 4 is lighted and put out through an automatic lighting circuit constituting the ballast 5 by sensing the external light. Voltage is supplied by a cable 13 protected by packing 14 at an outlet of the case 2.
| JP2013545226 | Light bulb and audio / lighting system |
| WO/2014/104560 | LIGHTING DEVICE CAPABLE OF ADJUSTING BRIGHTNESS |
OGURA TARO
TSU SHIGEMITSU
SHIMURA YOSHIAKI
