PURPOSE: To control changes of liquids by means of simple constitution, by using a concave lens the flat edge portion of which is extended, and providing another room formed by a refrigerant liquid supply tank between the extended portion and a coupling member for coupling a CRT and the concave lens, and also providing a narrow air hole above the coupling member and communicating the hole with the room.
CONSTITUTION: The flat edge portion of a plastic concave lens 12 forming a part of a projecting lens is extended upwards, and the extended flat edge portion is fixed at the edge portion of a CRT 1 using a coupling metal member 14. The non-extended flat edge portion is also fixed at the edge portion of the CRT 1 using a coupling metal member 13. In either case, a pair of rubber rings 8, 9 are interposed between the fixing portions. Another chamber tank portion 15 is located between the extended portion and the metal member 14 and is used to supply refrigerant liquids to a main chamber between the CRT 1 and the lens 12. Also, a narrow air hole 16 is located at the wall of the metal member 14 above the tank portion 15 and opened therethrough so as to control the speed at which molecules evaporating from the refrigerant liquids are dissipated.
| JPS57180844 | VACUUM DEVICE |
| JPS5429556 | ELECTRON IC TUBE |
| WO/2013/040486 | COLD PLASMA TREATMENT DEVICES AND ASSOCIATED METHODS |
IWAHARA YUKIAKI
TAMURA YUZO
YOSHIZAKI ISAO
