Title:
INTERPHONE HAVING CAMERA
Document Type and Number:
Japanese Patent JP3692388
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To illuminate widely even in a vertical direction by providing illumination lamps with plural illumination lamps which have an illumination pattern of a vertically long ellipse.
SOLUTION: Each illumination pattern arranges illumination lamps 3a to 3d so that an elliptic major axis may be vertically located, also the patterns of the illumination lamp patterns which horizontally adjoin mutually overlap each of the four illumination lamps partially, and further, they are provided in a slant way so that irradiation areas of the lamps 3a to 3d may be horizontally arranged. Here, because parts where each illumination of the lamps 3a to 3d becomes dark are overlapped, the illumination does not become too dark even at a position that is far from a light source. Further, because the lamps 3a to 3d are slantwise arranged, if each head side of the lamps 3a to 3d is provided in an mutually adjacent way, there is no need to make an opening part which irradiates the outside with light from the lamps 3a to 3d wide and the opening part becomes small even if many lamps are provided.
Inventors:
Hiroshi Yokota
Application Number:
JP26071297A
Publication Date:
September 07, 2005
Filing Date:
September 25, 1997
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS,LTD.
International Classes:
G03B15/00; G03B15/02; H04N7/18; (IPC1-7): H04N7/18; G03B15/00; G03B15/02
Domestic Patent References:
| JP7038883A | ||||
| JP5025887U | ||||
| JP62289084A | ||||
| JP8009361A | ||||
| JP1117185U | ||||
| JP7065603A | ||||
| JP427175A | ||||
| JP613661A | ||||
| JP4208988A |
Attorney, Agent or Firm:
Hiroyuki Nakai