| 摘要 |
<P>PROBLEM TO BE SOLVED: To uniformly illuminate an operated portion without unevenness when a glass door is touched with a finger for operation. <P>SOLUTION: When a finger of a user touches an area of glass 15 including a character of "freezing" displayed on the glass 15 before a conductive object 49 in a light guide body 40, a detecting body 30 detects a change in electrolysis capacity via the conductive object 49. A switch connected to the detecting body 30 is closed. A set temperature of a freezing chamber 7 is changed with respect to each pressing operation by the user, and the set temperature is displayed in a display 31. When the switch is closed, LEDs 36 are turned on. Illumination light is guided along a rear face 41A of a peripheral side wall 41, then, transmitted forwardly from the rear face 41A in the peripheral side wall 41, and guided to a front face 41B serving as a display face so as to make the front face 41B bright. At this time, a portion on a peripheral side face of the rear face 41A near the LED 36 is most distant from the front face, and the rear face 41A gradually approaches the front face 41B while increasing a distance from the LED 36. As a result, the light quantity reaches the front face 41B uniformly. <P>COPYRIGHT: (C)2011,JPO&INPIT |
