Title:
MAGNETIC FIELD COIL POSITION CONTROLLER
Document Type and Number:
Japanese Patent JPH04276338
Kind Code:
A
Abstract:
PURPOSE: To offer a magnetic field coil position controller which can be used without reducing the light emitting light quantity even when an ambient temperature rises.
CONSTITUTION: A pulse-shaped timing signal generated from a timing circuit 10 is supplied through a light emitting element driving circuit 11 to a light emitting element 5, thus, the power consumption the light emitting element 5 is decreased, and when the ambient temperature rises, the controller can be used without decreasing the light emitting light quantity.
Inventors:
FUJITA GORO
Application Number:
JP6264891A
Publication Date:
October 01, 1992
Filing Date:
March 04, 1991
Export Citation:
Assignee:
SONY CORP
International Classes:
G11B11/10; G11B11/105; (IPC1-7): G11B11/10
Attorney, Agent or Firm:
Yoshio Inamoto