Title:
FILM UNIT WITH LENS WITH BUILT-IN STROBOSCOPE
Document Type and Number:
Japanese Patent JP3553677
Kind Code:
B2
Abstract:
PURPOSE: To make a light emitting diode by a battery incorporated for a stroboscopic circuit synchronizing with the actuation of a shutter device.
CONSTITUTION: An oscillation transistor 44 and an oscillation transformer 45 form an oscillation circuit for charging a main capacitor 52 and use the battery 31 of 1.5V as a power source. An exposure switch 70 is turned on synchronizing with the shutter device so as to actuate a transistor 71 for switching. When the transistor 71 is actuated, the oscillation transistor 44 is actuated to allow the oscillation circuit to oscillate. At such a time, pulse voltage generated in a primary coil 47 is fetched and impressed on the light emitting diodes 27a and 28a for exposing an identification code, so that the light emitting diodes 27a and 28a emit light.
Inventors:
Koji Hata
Application Number:
JP5009795A
Publication Date:
August 11, 2004
Filing Date:
March 09, 1995
Export Citation:
Assignee:
Fuji Photo Film Co., Ltd.
International Classes:
G03B15/03; G03B15/05; G03B17/24; G03C3/00; (IPC1-7): G03C3/00; G03B15/03; G03B15/05; G03B17/24
Domestic Patent References:
| JP59149131U |
Attorney, Agent or Firm:
Kazunori Kobayashi
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