To improve freshness-keeping performance for food and by keeping a stored item storage temperature optimum in any storage state in a refrigerator, and to suppress power consumption by prevention against excess refrigeration of stored items.
A refrigerator includes ceiling-side LEDs 20a, 20b installed in a storage compartment 12, a main light sensor 21a as an light sensor detecting illumination light, and a blue LED 22a as an auxiliary light emission part emitting color light different from the ceiling-side LEDs 20a, 20b, etc. The main light sensor 21a detects reflected light of the light from the blue LED 22a from stored items to securely detect a stored item with high reflectivity affecting illuminance at a periphery of the main light sensor 21a, thereby securely improving estimation precision for a storage amount by the main light sensor 21a.
UENO OSAMU
NAKANISHI KAZUYA
MORI KIYOSHI
NAKAGAWA MASASHI
KAMISAKO TOYOSHI
KAKITA KENICHI
| JP2007003173A | 2007-01-11 | |||
| JP2010139079A | 2010-06-24 | |||
| JP2009299978A | 2009-12-24 |
| WO2011111382A1 | 2011-09-15 |
Daisuke Nagano
Kentaro Fujii