Title:
SPOT LIGHT
Document Type and Number:
Japanese Patent JPH09147606
Kind Code:
A
Abstract:
To provide a remote control type spot light which shows high accuracy in positioning.
Positions A to D where infrared radiation from a remote control unit has access to the overlapping range of all detection areas is detected, and the mean value of the detected result of a pan axis regarding two positions B, D in the positions A to D, where the infrared radiation has access to detection areas PA1, PA2 for panning and the mean value of the detected result of a tilt axis regarding two positions A, C where the infrared radiation has access to detection areas TA1, TA2 are sought. A spot light main body is panned and tilted to the position obtained from the mean values regarding the pan axis and the tilt axis.
Inventors:
TANAKA HIROYUKI
Application Number:
JP30743895A
Publication Date:
June 06, 1997
Filing Date:
November 27, 1995
Export Citation:
Assignee:
MATSUSHITA ELECTRIC WORKS LTD
International Classes:
F21S2/00; F21S10/00; F21V21/14; (IPC1-7): F21P5/00; F21M1/00
Attorney, Agent or Firm:
Hiroyuki Nakai