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21. 发明专利

JPH0136345B2 失效
公开(公告)号：JPH0136345B2
公开(公告)日：1989-07-31
申请号：JP20776881
申请日：1981-12-22
申请人： COPAL CO LTD
发明人： KANEKO KYOTAKA , KUROSU TOMIO , OKAJIMA KOICHI
IPC分类号： H02M3/00 , H02M3/28

22. 发明专利

JPS63241530A SPEED SERVO CONTROLLER FOR MECHANISM MEMBER OF CAMERA 失效
公开(公告)号：JPS63241530A
公开(公告)日：1988-10-06
申请号：JP7494887
申请日：1987-03-28
申请人： COPAL CO LTD
发明人： KUROSU TOMIO
IPC分类号： G03B7/10 , G03B9/10 , G03B9/24 , H02P7/06
摘要： PURPOSE:To decrease the disturbance in control characteristics which arises when the threshold of the response capacity of a servo system is exceeded by detecting a present position by an integrating means and controlling the timing for changing over a speed command signal. CONSTITUTION:This controller has the integrating means 21 which generates the present position signal of a mechanism member by integrating the output of a speed detecting means with time. The controller changes over the speed command signal generated by a speed command signal generating means 20 in response with the present position signal generated by the integrating means 21. The speed command signal does not rise instantaneously but rises gradually with a specified ramp provided thereto at the time when a shutter vane starts an opening action by shifting from a stop state to a moving state. Sufficient follow-up of a servo amplifier SA and a servo motor M is, therefore, permitted. The disturbance in the control characteristic by the speed command is excess of the response capacity of the servo system is thereby hardly generated.

23. 发明专利

JPS63182635A SERVO CONTROLLER FOR SHUTTER 失效
公开(公告)号：JPS63182635A
公开(公告)日：1988-07-27
申请号：JP1338687
申请日：1987-01-23
申请人： COPAL CO LTD
发明人： KUROSU TOMIO
IPC分类号： G03B9/10 , G03B9/62
摘要： PURPOSE:To perform stable servo control irrelevant to the traveling direction of a shutter by generating a speed command corresponding to the traveling direction of the shutter. CONSTITUTION:A reference speed signal generating circuit 23 is so constituted as to control the sign of the reference speed signal corresponding to the operation direction of the actuator by controlling an actuator so as a current speed signal follows up a reference speed signal, and controlling a reference position signal generating circuit 15 so as the displacement direction of the reference position signal corresponds to the traveling direction of a shutter blade 13. A proper target speed is speed servo is therefore settable corresponding to the traveling direction of the shutter blade 13. Consequently, servo-control with good follow-up performance is enabled.

24. 发明专利

JPS6134132B2 失效
公开(公告)号：JPS6134132B2
公开(公告)日：1986-08-06
申请号：JP522078
申请日：1978-01-23
申请人： COPAL CO LTD
发明人： KUROSU TOMIO , OKAJIMA KOICHI
IPC分类号： G03B9/10 , G03B9/00 , H02K21/24

25. 发明专利

JPS6079213A DISTANCE MEASURING APPARATUS 失效
公开(公告)号：JPS6079213A
公开(公告)日：1985-05-07
申请号：JP18777583
申请日：1983-10-07
申请人： COPAL CO LTD
发明人： TAKAGI MASAAKI , YOSHIKAWA YUKIO , KUROSU TOMIO , SASAKI TOYONORI , MATSUMOTO KUNIO , NAMIOKA AKITA
IPC分类号： G01C3/06 , G01C3/00 , G01C3/10 , G02B7/32
摘要： PURPOSE:To enable the discrimination of distance measuring condition with a stable operation with a simple construction by varying emission frequency of a light emitting element. CONSTITUTION:An infrared light emitting diode IRD 22 lights in a pulse only when a transistor 21 conducts with the inversion of an output terminal of an operational amplification circuit OPA 15. The flashing cycle thereof becomes faster and the emission frequency is shifting to a high frequency toward the center frequency of BPFs 30 and 31 from the flow frequency. The projection light from the diode is reflected on an object for distance measurement and received with a semiconductor light position detecting element 23. Received light outputs at the points (e) and (e') are generated overlapping DC component by natural light. In addition, outputs at the points (g) and (g') after the BPFs 30 and 31 will appear as being amplified in the waveform.

26. 发明专利

JPS6079211A DISTANCE MEASURING APPARATUS 失效
公开(公告)号：JPS6079211A
公开(公告)日：1985-05-07
申请号：JP18777383
申请日：1983-10-07
申请人： COPAL CO LTD
发明人： TAKAGI MASAAKI , YOSHIKAWA YUKIO , KUROSU TOMIO , SASAKI TOYONORI , MATSUMOTO KUNIO , NAMIOKA AKITA
IPC分类号： G01C3/06 , G01C3/00 , G01C3/10 , G02B7/32 , G03B13/36
摘要： PURPOSE:To enable the discrimination of the distance measuring condition when an easy-to-identify set value in a comparator circuit is reached by increasing the quantity of light emitted by a light emitting element monotonuously from small to large to augment the output of a light receiving element gradually from apparently zero or very small amount. CONSTITUTION:As a clock pulse passes through an AND gate 3, a transistor 4 repeats in the conduction and interruption. In response thereto, the current of a transistor 12 increases intermittently and an IRD 13 light in a pulse while the quantity of light emitted thereby increases monotonously from small to large. This projection light reflects from an object for distance measurement and is received with a semiconductor light position detecting element 14. The received light outputs at the points (c) and (c') are generated overlapping a DC component by a natural light. The output voltage Vg and Vg' at the points (g) and (g') following DC amplification circuits 27 and 28 via smoothing circuits 25 and 26 rises gradually from the specified value. Thus, medium and far distances are discriminated depending on the signal level conditions of output terminals Q1 and Q2 at FFs 37 and 38.

27. 发明专利

JPS59224508A DISTANCE MEASURING DEVICE 失效
公开(公告)号：JPS59224508A
公开(公告)日：1984-12-17
申请号：JP9911083
申请日：1983-06-03
申请人： COPAL CO LTD
发明人： TAKAGI MASAAKI , HARANO TETSUO , YOSHIKAWA YUKIO , KUROSU TOMIO , SASAKI TOYONORI , MATSUMOTO KUNIO , NAMIOKA AKITA
IPC分类号： G01C3/00 , G01C3/06 , G02B7/32
摘要： PURPOSE:To set a lens at a specific position by varying the characteristics of a filter and increasing the output of a photodetecting element circuit from zero or a fine value, and deciding on a distance measurement state. CONSTITUTION:The outputs of photodetecting elements 6 and 7 are sent out through BPFs 10 and 12 having variable characteristics, and an FF36 is held at a level H when the voltage Vf at a point (f) reaches a reference voltage Vr. At the same time, the output of an INV30 is held at a level L and a capacitor 31 is charged up to the voltage V1. This voltage V1 is amplified by a buffer circuit 32 and supplied to the inverted input terminal of a comparator (CMP)33. An AND gate 37 is therefore opened and a transistor (TR) 38 is turned on to energize an electromagnet 39. When the potential at the uninverted input terminal (+) of the CMP33 drops to the potential at the inverted input terminal (-), its output goes down to the level L. Consequently, the AND gate 37 is closed to fix the photographic lens at the specific position. Thus, the photographic lens is set at the specific position through stable operation.

28. 发明专利

JPS59159009A Distance measuring device 失效
标题翻译：距离测量装置
公开(公告)号：JPS59159009A
公开(公告)日：1984-09-08
申请号：JP3258783
申请日：1983-02-28
申请人： Copal Co Ltd
发明人： TAKAGI MASAAKI , HARANO TETSUO , YOSHIKAWA YUKIO , KUROSU TOMIO , SASAKI TOYONORI , MATSUMOTO KUNIO , NAMIOKA AKITA
IPC分类号： G01C3/06 , G01B11/00 , G01C3/00 , G01S17/10 , G02B7/32
CPC分类号： G01S17/10
摘要： PURPOSE:To measure a distance by a stable operation, by changing the frequency of a light emitting element to the central frequency of bandpass filters, and judging the distance measuring state when the frequency reaches a preset value that is judged readily in a comparator circuit. CONSTITUTION:An infrared-ray light emitting diode 22 is lit by pulses only when the output terminal of an OPA15 is inverted to an ''H'' level and a transistor 21 is conducted. A current Ix is gradually increased in correspondence with the increase in a voltage V at a point a', and the period of intermittent flash becomes quick. The frequency of light emission is increased from a lower frequency to a higher frequency toward the central frequency f0=16kHz of BPFs 27 and 28. Projected light is reflected by an object for distance measuring and received by SPDs 23 and 24. As a result, the received light outputs at points (e) and (e') are superimposed on the DC component of natural light as shown in (a). The waveforms are amplified by AC amplifiers 25 and 26 and further amplified by DC amplifiers 33 and 34 through detectors 29 and 30 and smoothing circuits 31 and 32. Output voltages Vj nd Vj' at point (j) and (j') are gradually increased from a specified values as shown in (e).
摘要翻译：目的：通过将发光元件的频率改变为带通滤波器的中心频率，通过稳定的操作来测量距离，并且当频率达到在比较器电路中容易判断的预设值时判断距离测量状态。构成：只有当OPA15的输出端子反相为“H”电平并且导通晶体管21时，红外线发光二极管22才被脉冲点亮。电流Ix随着点a'处的电压V的增加而逐渐增加，并且间歇闪光的周期变得快。发光的频率从BPF 27和28的中心频率f0 = 16kHz从较低的频率增加到更高的频率。投影的光被物体反射，用于距离测量并由SPD 23和24接收。结果，（e）和（e'）处的接收光输出被叠加在自然光的DC分量上，如（a）所示。这些波形由AC放大器25和26放大，并由DC放大器33和34进一步通过检测器29和30以及平滑电路31和32放大。点（j）和（j'）处的输出电压Vjnd Vj'逐渐增大从（e）所示的指定值。

29. 发明专利

JPS58108969A STEP-UP CHARGING CIRCUIT 失效
公开(公告)号：JPS58108969A
公开(公告)日：1983-06-29
申请号：JP20776881
申请日：1981-12-22
申请人： COPAL CO LTD
发明人： KANEKO KIYOTAKA , KUROSU TOMIO , OKAJIMA KOUICHI
IPC分类号： H02M3/00 , H02M3/28
摘要： PURPOSE:To accurately hole the charging voltage at the prescribed value by monitoring directly the charging voltage of a condenser and controlling the operation and stop of an oscillator. CONSTITUTION:A voltage detector 7 for directly detecting the upper and lower voltage limits necessary for the charging voltage of a condenser 5 and an oscillation controller 8 for controlling the operation and stop of the oscillator 2 with the output of the detector 7 are added to a step-up charging circuit which has a low voltage power source 1 of battery, the oscillator 2, a step-up circuit 3, a charging circuit 4, the condenser 5 and a driven load circuit 6. The charging voltage of the condenser 5 is held at the voltage value between the detecting upper and lower limits in the detector 7.

30. 发明专利

JPS56151917A APERTURE BLADE CONTROL DEVICE FOR SINGLE-LENS REFLEX CAMERA 失效
公开(公告)号：JPS56151917A
公开(公告)日：1981-11-25
申请号：JP5508280
申请日：1980-04-25
申请人： COPAL CO LTD
发明人： KUROSU TOMIO
IPC分类号： G03B9/02 , G03B9/07 , G03B9/10 , G03B19/12
摘要： PURPOSE:To perform resetting operation of aperture blades smoothly by disposing a permanent magnet to one of movement limiting parts for aperture diameter setting members and a magnetic material to the other, respectively, thereby effecting a magnetic coupling function. CONSTITUTION:A permanent magnet 16 is provided to at least one of movement limiting parts for an aperture blade operating ring 11 and an aperture diameter setting ring 13 limiting the movement extent of this ring 11 driven by motors 4, 5. A magnetic material 17 is provided to the other, so that a magnetic coupling function is effected by this permanent magnet 16 and the magnetic material 17.

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