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公开(公告)号:JPH068941B2
公开(公告)日:1994-02-02
申请号:JP8529085
申请日:1985-04-20
Applicant: MINOLTA CAMERA KK
Inventor: NARUSE KAZUHIKO , YUASA YOSHIO , INABA MASAHITO
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公开(公告)号:JPH0560049B2
公开(公告)日:1993-09-01
申请号:JP9032380
申请日:1980-07-01
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , KAWAGOE NOBUKAZU
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公开(公告)号:JPH0553218B2
公开(公告)日:1993-08-09
申请号:JP28558186
申请日:1986-11-28
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , ISHIKAWA NORIO , HORIE IZUMI
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公开(公告)号:JPH0423248B2
公开(公告)日:1992-04-21
申请号:JP12639987
申请日:1987-05-22
Applicant: MINOLTA CAMERA KK
Inventor: NARUSE KAZUHIKO , YUASA YOSHIO , ISHIKAWA NORIO
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公开(公告)号:JPH0223812B2
公开(公告)日:1990-05-25
申请号:JP15527579
申请日:1979-11-29
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , NARUSE KAZUHIKO
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公开(公告)号:JPS642929B2
公开(公告)日:1989-01-19
申请号:JP14246779
申请日:1979-11-02
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , TANIGUCHI NOBUYUKI , ISHIKAWA NORIO
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公开(公告)号:JPS62167420A
公开(公告)日:1987-07-23
申请号:JP28558186
申请日:1986-11-28
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , ISHIKAWA NORIO , HORIE IZUMI
Abstract: PURPOSE:To make it possible to output sensitivity correction data having reliability, by measuring lights in blue, green and red regions in order to operate correction data. CONSTITUTION:Voltages Vb, Vr, Vg corresponding to the intensity of incident light are outputted from photometric circuits 1-3 and the voltages Vb, Vr are inputted to subtraction circuit 40 while the voltages Vr, Vg are inputted to a subtraction circuit 42 and the output V8 of said circuit 42 is inputted to a reversal amplifying circuit 52. The output V6 of the circuit 40 is inputted to a reversal amplifying circuit 50 while the output VMb of the circuit 50 is inputted to a reversal operation circuit 60 to be displayed on a meter M0 as a photographical color temp. Tbk through a voltage/current converter circuit. In the same way, the output VMg of the circuit 52 is displayed on a meter M2 as photographic color temp. Tgk through a reciprocal operation circuit 62. When the output VMb of the circuit 50 is larger than the output voltage V14 of a constant voltage source E8, the output of an operational amplifier OA22 becomes H, and the circuit 60 and the meter M0 are not operated and a light emitting diode LD0 lights to issue an alarm. The same operation is performed in the case of the circuit 62. The outputs of the amplifier 50 and the circuits 52 are inputted to a subtraction circuit 8 and a voltage corresponding to a CC factor is displayed on a meter M6.
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公开(公告)号:JPS62161023A
公开(公告)日:1987-07-17
申请号:JP26607286
申请日:1986-11-07
Applicant: MINOLTA CAMERA KK
Inventor: NARUSE KAZUHIKO , YUASA YOSHIO
Abstract: PURPOSE:To make it possible to repeatedly measure flash light simply by one operator, by controlling a photometric means and an optical trigger means by a control means so as to together bring both of them to an operative state. CONSTITUTION:A photometric means C1 measured flash light and, when it is detected that flash light begins to emit, an optical trigger means C4 outputs an optical trigger signal for operating the means C1. A control means CPU controls both means C1, C4 so as to together bring the same to an operative or non-operative state. This flash light measuring apparatus is operated as mentioned above. Therefore, a flash device and this measuring apparatus are arranged at relatively near positions and, when the measuring result of this measuring apparatus is read from the position of the flash apparatus, the means C1, C4 are controlled by the means CPU so as to be together brought to the operative stat to make it possible to repeatedly measure flash light without operating the manual operation switch of the measuring apparatus at every measurement.
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公开(公告)号:JPS6137567B2
公开(公告)日:1986-08-25
申请号:JP15105985
申请日:1985-07-08
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO , ISHIKAWA NORIO , TANIGUCHI NOBUYUKI
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公开(公告)号:JPS61572B2
公开(公告)日:1986-01-09
申请号:JP1328778
申请日:1978-02-07
Applicant: MINOLTA CAMERA KK
Inventor: YUASA YOSHIO
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