Title:
LUMINAIRE AND STAGE LIGHTING SYSTEM
Document Type and Number:
Japanese Patent JP3915138
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To select a control means without any thermal problem even if the attitude is changed and conduct required control by providing an attitude control mechanism, plural control means, and a selection means selecting a selection means in response to the attitude of the luminaire main body.
SOLUTION: The body portion 1d of the luminaire main body 1 is supported by an arm portion 1c so as to be tiltable, and is turnable by 180°. When the body portion 1d is at a predetermined position, a control means 4a is on a down side so that a temperature becomes relatively low, and when the same is turned 180° from the current position, then the control means 4b comes on the down side so that the temperature becomes relatively low. At an intermediate position the temperature of the down side control means becomes basically low. In this case, a selection means 5 is common for respective means 4a, 4b, a gravity sensor sensing a position by the gravity is used, and the position change of the body portion 1d, that is, the change of a luminaire attitude is sensed by the acting direction change of the gravity. Thereby, control without any thermal problem can be conducted by changing the attitude.
Inventors:
Keiichi Shimizu
Toshihiko Sasai
Toshihiko Sasai
Application Number:
JP15980996A
Publication Date:
May 16, 2007
Filing Date:
June 20, 1996
Export Citation:
Assignee:
Toshiba Lighting & Technology Corporation
International Classes:
F21S10/00; H05B37/02; (IPC1-7): F21P5/00; //H05B37/02
Domestic Patent References:
| JP6203966A | ||||
| JP6267667A | ||||
| JP5144314A | ||||
| JP736597U | ||||
| JP7240102A | ||||
| JP647042U |
Attorney, Agent or Firm:
Yoshihiro Onoda