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1. 发明授权

US4737668A Circuit arrangement for reducing the settling time of logarithmic amplifiers 失效
标题翻译：降低对数放大器稳定时间的电路装置
公开(公告)号：US4737668A
公开(公告)日：1988-04-12
申请号：US911862
申请日：1986-09-26
申请人： Walter Bletz , Rolf Magel , Helmut Bill
发明人： Walter Bletz , Rolf Magel , Helmut Bill
IPC分类号： H03G11/08 , G01J1/44 , G03B7/081 , G06E3/00 , G06G7/24 , H03F1/30 , H03F3/08 , H03G3/20 , H03K5/00 , H03K3/42 , H03K17/56
CPC分类号： H03G3/3084 , G01J1/44 , H03F1/305 , H03F3/087
摘要： A circuit arrangement for reducing the settling time of amplifiers to which photoelectronic components are connected. A control circuit is provided which, operating in conjunction with components of this circuit arrangement, prevents the parasitic capacitance of the photoelectronic component from being charged up when the circuit arrangement is connected to the operating voltage.
摘要翻译：一种降低光电子元件连接到的放大器的稳定时间的电路装置。提供了一种控制电路，其与该电路装置的组件一起操作，以防止当电路装置连接到工作电压时光电子部件的寄生电容被充电。

2. 发明授权

US4647175A Circuit arrangement for an electronic exposure meter 失效
标题翻译：电子曝光表的电路布置
公开(公告)号：US4647175A
公开(公告)日：1987-03-03
申请号：US757882
申请日：1985-07-23
申请人： Walter Bletz , Rolf Magel
发明人： Walter Bletz , Rolf Magel
IPC分类号： G01J1/44 , G03B7/04 , G03B7/26 , H03F3/08 , G03B7/02 , G03B17/18
CPC分类号： G03B7/04 , H03F3/087
摘要： In a switching circuit for an electronic exposure meter in optical devices with a photoelectric converter at the input of an amplifier which logarithmizes the output current from said converter, with a temperature compensation circuit and a photoelectric current limit value circuit and with an indicator, a voltage supply source having a main switch, means are provided on the device for coupling to the main switch. These means effect automatic connection or disconnection of the switching circuit to or from the supply source.
摘要翻译：在具有光电转换器的光学装置的电子曝光计的开关电路中，放大器的输入端对来自所述转换器的输出电流进行对数，用温度补偿电路和光电流限制值电路和指示器，电压具有主开关的供电源装置设置在与主开关连接的装置上。这些意味着切换电路自动连接或断开与供电源的连接或切断。

3. 发明授权

US4694155A Circuit arrangement to ascertain and indicate that a luminous density limit condition is exceeded 失效
标题翻译：确定并指示超过了发光密度限制条件的电路布置
公开(公告)号：US4694155A
公开(公告)日：1987-09-15
申请号：US757881
申请日：1985-07-23
申请人： Walter Bletz , Rolf Magel
发明人： Walter Bletz , Rolf Magel
IPC分类号： G01J1/44 , G03B7/04 , G03B7/26 , H03F3/08 , H01J40/14
CPC分类号： G03B7/04 , H03F3/087
摘要： A circuit containing a photodiode for determining when there is sufficient illumination for an optical device to operate having provision for compensating signal variations due to temperature-dependent operation of the photodiode by supplying logarithmic means with an input from a potentiometer connected to a temperature-dependent distributor circuit.
摘要翻译：包含光电二极管的电路，用于确定何时有足够的照明用于光学装置的操作，其提供用于补偿由于光电二极管的温度依赖性操作引起的信号变化，通过将对数装置与来自与温度相关的分配器连接的电位器的输入电路。

4. 发明授权

US5907727A Device for exposure metering 失效
标题翻译：曝光测光装置
公开(公告)号：US5907727A
公开(公告)日：1999-05-25
申请号：US914764
申请日：1997-08-20
申请人： Walter Bletz , Robert Denk , Gerhard Kranz , Rolf Magel
发明人： Walter Bletz , Robert Denk , Gerhard Kranz , Rolf Magel
IPC分类号： G01J1/02 , G03B7/093 , G03B7/0997 , G03B7/099
CPC分类号： G03B7/09971
摘要： A device for exposure metering in photographic cameras including a reflector located in the imaging beam path. The surface of the reflector is provided with a reflecting structure whose size corresponds at least approximately to that of the image recording format. At least one photoelectric receiver records the light intensity of a portion of the image reflected from the reflecting structure. The reflector is pivotally mounted in the camera housing such that during exposure metering the reflector surface is in the vicinity of the film plane of the camera. A limited portion of the reflector is transparent and a photoelectric receiver is set into the backside of the reflector behind the transparent portion.
摘要翻译：用于照相机中曝光测光的装置，包括位于成像光束路径中的反射器。反射器的表面设置有反射结构，其尺寸至少近似于图像记录格式的尺寸。至少一个光电接收器记录从反射结构反射的图像的一部分的光强度。反射器可枢转地安装在照相机壳体中，使得在曝光计量期间，反射器表面处于照相机的胶片平面附近。反射器的有限部分是透明的，并且光电接收器被设置在透明部分后面的反射器的背面。

5. 发明授权

US4054887A Exposure control device for photographic cameras 失效
标题翻译：照相机曝光控制装置
公开(公告)号：US4054887A
公开(公告)日：1977-10-18
申请号：US701802
申请日：1976-07-01
申请人： Werner Holle , Walter Bletz , Rolf Magel
发明人： Werner Holle , Walter Bletz , Rolf Magel
IPC分类号： G03B7/085 , G03B7/08
CPC分类号： G03B7/085
摘要： Exposure control device for a photographic camera wherein, in a part of the exposure control device, electronic means are provided in order to form, from the luminous density of an object, the film sensitivity, and the preselected time, a voltage analogous to a diaphragm setting, and wherein a storage means is provided for storing this value, the improvement comprising the combination of the following features:A. when the camera release is actuated, the diaphragm begins to operate from an initial position corresponding to the maximum diaphragm opening, a diaphragm path meter coupled therewith operating simultaneously with this diaphragm and yielding a value corresponding to the change in aperture;B. means are provided which compare the value produced by the diaphragm path meter with the stored value and, in case of identical values, or compensation of the values, stop the operation of the diaphragm by a stop member;C. furthermore, means are provided which add the remaining difference value between the formed value and the value formed by the diaphragm path meter to the value corresponding to the preselected time; andD. the open time of the shutter is formed by conventional electronic means in correspondence with the value delivered by the time setter, taking the difference value into account.
摘要翻译：用于照相机的曝光控制装置，其中在曝光控制装置的一部分中，设置电子装置以从物体的发光密度形成胶片感光度和预选时间，类似于光阑的电压设置，并且其中提供用于存储该值的存储装置，该改进包括以下特征的组合：

6. 发明授权

US4310229A Method and apparatus for automatic exposure control on a photographic camera 失效
标题翻译：用于照相机上的自动曝光控制的方法和装置
公开(公告)号：US4310229A
公开(公告)日：1982-01-12
申请号：US094341
申请日：1979-11-14
申请人： Rolf Magel
发明人： Rolf Magel
IPC分类号： G03B7/085 , G03B7/081 , G03B7/087
CPC分类号： G03B7/085
摘要： Disclosed is a method and apparatus for automated exposure control in a photographic camera having a lens equipped with an automatically adjusting diaphragm. A measuring signal is provided which is proportional to the luminance of the subject, the sensitivity of the film and the initial aperture at which the diaphragm is set. A control device is provided which stops the moving aperture at its working opening. A reference signal is provided by combining the measuring signal with a signal proportional to a shutter speed limit value. The diaphragm automatic adjustment is initiated and the variation or change in diaphragm aperture is converted to a signal which is combined with the measuring signal. This varying signal is continuously compared with the reference signal and a control signal to stop the automatic adjustment of the diaphragm is issued when the signals being compared are equal. In one embodiment of the invention, the reference signal is provided by combining the measuring signal and the shutter speed limit value in a 1-to-1 ratio. This ratio can be changed to provide either shutter speed or aperture priority if desired.
摘要翻译：公开了一种用于具有配备有自动调节膜片的透镜的照相机中的自动曝光控制的方法和装置。提供与被摄体的亮度成比例的测量信号，胶片的灵敏度和设置隔膜的初始孔径。提供控制装置，其在其工作开口处停止移动孔。通过将测量信号与与快门速度限制值成比例的信号组合来提供参考信号。光圈自动调节开始，光阑孔径的变化或变化转换为与测量信号相结合的信号。该变化信号与参考信号连续地进行比较，并且当被比较的信号相等时，发出停止光阑的自动调节的控制信号。在本发明的一个实施例中，通过以1比1的比率组合测量信号和快门速度限制值来提供参考信号。如果需要，可以改变该比例以提供快门速度或光圈优先。

7. 发明授权

US4172651A Single lens mirror reflex camera with automated aperture and timing control 失效
标题翻译：单镜头反光相机具有自动光圈和定时控制
公开(公告)号：US4172651A
公开(公告)日：1979-10-30
申请号：US943802
申请日：1978-09-19
申请人： Willi Wiessner , Fritz Keiner , Rolf Magel
发明人： Willi Wiessner , Fritz Keiner , Rolf Magel
IPC分类号： G03B7/00 , G03B7/08 , G03B7/20 , G03B17/18 , G03B17/14 , G03B17/20
CPC分类号： G03B17/18
摘要： A single lens mirror reflex camera with spring biased diaphragm and with exposure metering and controlling system having a central operation mode selection switch for switching between several operation modes, is improved by providing indicators at the camera which are switched in when the "automatic aperture" operation mode is selected and are recognized as warning displays by the user, and by providing switching means at the stop preselection ring of the objective and at the camera, which turn off the indicators in the camera proper when the smallest aperture is set at the stop preselection ring.
摘要翻译：具有弹簧偏置光圈的单透镜镜反射相机和具有用于在几种操作模式之间切换的中央操作模式选择开关的曝光测光和控制系统通过在相机处提供指示来改善，当“自动光圈”操作模式被选择并且被用户识别为警告显示，并且通过在物镜的停止预选环和相机处提供切换装置，当在停止预选中设置最小光圈时，它关闭相机中的指示器环。

8. 发明授权

US4284334A Circuit arrangement for the compensation of the temperature coefficient of semiconductor junctions 失效
标题翻译：用于补偿半导体接头温度系数的电路布置
公开(公告)号：US4284334A
公开(公告)日：1981-08-18
申请号：US38939
申请日：1979-05-14
申请人： Rolf Magel
发明人： Rolf Magel
IPC分类号： G03B7/081 , G01J1/44 , G03B17/18 , H03F1/30 , H03F3/08 , G03B7/083 , G03B7/22 , G05F3/16
CPC分类号： H03F1/302 , H03F3/082 , Y10S323/907
摘要： An arrangement for compensating the temperature coefficient of the semiconductor junction connected in a circuit, comprising first, second, and third transistors of the same predetermined type, each having a base-emitter junction and operatively connected to have a respective collector current, and a resistive voltage divider having two ends in a center tap. The transistors and the divider are operatively connected such that the voltages of the base-emitter junctions of the first and second transistors are summed and applied across the ends of the voltage divider. The voltage from one end to the center tap of the voltage divider is connected across the base-emitter junction of the third transistor. The collector current of the third transistor thus corresponds to the geometric mean of the respective collector currents of the first and second transistors and is substantially less temperature-dependent than the collector current of the first transistor. The arrangement is particularly useful in circuits for exposure measuring and control in photographic devices.
摘要翻译：一种用于补偿连接在电路中的半导体结的温度系数的装置，包括相同预定类型的第一，第二和第三晶体管，每个具有基极 - 发射极结并且可操作地连接以具有相应的集电极电流，分压器在中心抽头中具有两端。晶体管和分压器可操作地连接，使得第一和第二晶体管的基极 - 发射极结的电压被相加并跨越分压器的端部施加。分压器的一端到中心抽头的电压连接在第三晶体管的基极 - 发射极结两端。因此，第三晶体管的集电极电流对应于第一和第二晶体管的相应集电极电流的几何平均值，并且与第一晶体管的集电极电流相比基本上不太依赖于温度。该装置在用于照相装置中的曝光测量和控制的电路中特别有用。

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