公开(公告)号：US3737240A

公开(公告)日：1973-06-05

申请号：US3737240D

申请日：1971-12-23

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K

IPC: G01J1/44 ,  G03B7/083 ,  G01J1/42

CPC classification number: G01J1/44 ,  G03B7/083

Abstract: A photoelectric element furnishes a signal corresponding to the light available for an exposure. The photoelectric element is connected to a plurality of threshold stages. A plurality of indicator elements which glow when energized are arranged in space and connected to the threshold stages in such a manner that glowing indicator elements form a figure signifying the particular exposure time range.

Abstract translation: 光电元件提供与可用于曝光的光相对应的信号。 光电元件连接到多个阈值级。 在通电时发光的多个指示元件以空间指示元件形成表示特定曝光时间范围的图形的方式排列在空间中并连接到阈值级。

公开(公告)号：US3783759A

公开(公告)日：1974-01-08

申请号：US3783759D

申请日：1973-03-19

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K ,  NICOLAY K

IPC: G03B7/083 ,  G03B7/08 ,  G03B9/62

CPC classification number: G03B7/083

Abstract: One input of a differential amplifier is connected to a charging or discharging capacitor and the other input to a discharging capacitor that has previously been charged to the voltage across one leg of a voltage divider consisting of a photoconductor and a resistor connected in series across a battery. When the voltages at the two inputs are approximately equal, one branch of the differential amplifier shuts off, de-energizing the shutter control magnet and closing the camera shutter.

Abstract translation: 差分放大器的一个输入连接到充电或放电电容器，而另一个输入端连接到放电电容器，该放电电容器预先已经被充电到由电感器和电阻串联连接的电阻器组成的分压器的一条支路上的电压 。 当两个输入端的电压大致相等时，差分放大器的一个支路关闭，使快门控制磁铁断电并闭合相机快门。

公开(公告)号：US3759150A

公开(公告)日：1973-09-18

申请号：US3759150D

申请日：1972-06-14

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K

IPC: G03B7/083 ,  G03B9/58 ,  G03B7/08 ,  G03B9/08

CPC classification number: G03B7/083 ,  G03B9/58

Abstract: A photographic camera can be used for making long exposures of the type requiring the user to effect opening of the shutter and then to positively effect closing of the shutter after the elapse of an appropriate exposure time. A timing arrangement which notifies the user when to close the shutter comprises an energystoring element, and supply means for supplying energy to the energy storing element. A photosensitive element, exposed to scene light, controls the rate of change of energy stored by the energy-storing element as a function of scene brightness, after the shutter has been opened, and permits the amount of energy stored by the energy-storing element to reach a predetermined value corresponding to a predetermined total amount of light impingement on the photosensitive element. An electronic threshold detector, connected with the energy-storing element and having an output, produces at its output a control signal only when the energy stored by the energy-storing element has reached the aforesaid predetermined value. An electrical signalling unit, such as a lamp or buzzer, is connected to the output of the threshold detector, and furnishes to the user of the camera a readily observable timing signal in response to generation by the threshold detector of the aforementioned control signal, thus notifying the user that closing of the shutter should be effected.

Abstract translation: 照相机可以用于长时间曝光，需要用户实现快门的打开，然后在经过适当的曝光时间之后积极地影响快门的关闭。 通知用户何时关闭快门的定时装置包括能量存储元件和用于向能量存储元件提供能量的供给装置。 暴露于场景光的感光元件在快门被打开之后控制作为场景亮度的函数的由储能元件存储的能量的变化率，并且允许由能量存储元件存储的能量的量 以达到对应于感光元件上预定的光照射总量的预定值。 与能量存储元件连接并具有输出的电子门限检测器仅在能量存储元件存储的能量达到上述预定值时才在其输出端产生控制信号。 诸如灯或蜂鸣器的电信号单元连接到阈值检测器的输出，并且响应于阈值检测器产生上述控制信号而向摄像机的用户提供容易观察的定时信号，从而 通知用户应该关闭快门。

公开(公告)号：US3729318A

公开(公告)日：1973-04-24

申请号：US3729318D

申请日：1971-07-21

Applicant: AGFA GEVAERT AG

Inventor： HIMMELMANN W ,  BERGTHALLER P ,  QUIRING B ,  WAGNER K

IPC: C07D303/16 ,  C07D303/24 ,  G03C1/30

CPC classification number: C07D303/24 ,  C07D303/16 ,  G03C1/306

Abstract: PHOTOGRAPHIC GELATINE LAYERS HAVE TO BE HARDENED IN ORDER TO IMPROVE THE MECHANICAL PROPERTIES AND TO RAISE THE MELTING POINT OF THE LAYER. EXCELLENT HARDENING IS OBTAINED BY MEANS OF LOW MOLECULAR COMPOUNDS HAVING A HARDENY EPOXIDE AND A HARDENING ISOCYANATE GROUP.

公开(公告)号：US3712197A

公开(公告)日：1973-01-23

申请号：US3712197D

申请日：1970-11-05

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K

IPC: G03B9/70 ,  G03B15/04 ,  G03B15/05

CPC classification number: G03B15/0468 ,  G03B9/70 ,  G03B15/05 ,  G03B2215/0514 ,  G03B2215/056

Abstract: The housing of a photographic camera or a discrete illuminating device has a shoe for the foot of an electronic flash unit or a photoflash unit. The housing contains a current supplying circuit whose high-voltage generating portion is a transformer or a piezoelectric crystal and is connected with the tube of the electronic flash unit or with the lamp of the photoflash unit in response to connection of the respective unit to the housing. The tube or lamp is fired in response to opening of the shutter by the shutter release element.

Abstract translation: 照相机或分立照明装置的外壳具有用于电子闪光灯单元或闪光灯单元的脚的鞋。 壳体包含电流供应电路，其高压产生部分是变压器或压电晶体，并且响应于相应单元与壳体的连接而与电子闪光单元的管或闪光灯单元的灯连接 。 响应于快门释放元件的快门的打开，管或灯被点燃。

公开(公告)号：US3821765A

公开(公告)日：1974-06-28

申请号：US33314973

申请日：1973-02-16

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K ,  WAGENSONNER E

IPC: H05B41/32 ,  G03B15/05

CPC classification number: H05B41/32

Abstract: A LIQUID CRYSTAL ELEMENT IS CONNECTED IN PARALLEL WITH THE RELEASE CONTACTS OF THE CAMERA WHICH IN TURN ARE CONNECTED TO THE IGNITION CIRCUIT OF THE FLASH UNIT. THE LIQUID CRYSTAL ELEME NT IS ARRANGED IN THE CAMERA HOUSING AND AN IMAGE OF IT IS REFLECTED INTO THE VIEWFINDER. THE LIQUID CRYSTAL CHANGES FROM A LIGHT TRANSMISSIVE TO AN OPAQUE STATE WHEN THE VOLTAGE ACROSS THE IGNITION CAPACITOR REACHES THE VOLTAGE REQUIRED FOR FLASH INITIATION.

公开(公告)号：US3783757A

公开(公告)日：1974-01-08

申请号：US3783757D

申请日：1972-03-14

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K ,  ROSENBERG O ,  HUMMEL A

IPC: G03B7/16 ,  G03B15/05

CPC classification number: G03B15/05 ,  G03B7/16 ,  G03B2215/0503 ,  G03B2215/0514

Abstract: A still camera wherein the main diaphragm can be adjusted by a focussing ring is coupled with or incorporates an electric flash unit wherein a photosensitive receiver which measures the amount of light reflected from the subject is located behind an adjustable auxiliary diaphragm. The auxiliary diaphragm is adjustable with the main diaphragm to change the threshold value of the control circuit of the flash unit. The motion transmitting connection between the main diaphragm and the auxiliary diaphragm is separable in response or prior to detachment of a removable flash unit so that the main diaphragm can be adjusted by the focussing ring when the flash unit is detached or when the housing of the camera is connected with a different flash unit.

Abstract translation: 其中主光圈可以通过聚焦环调节的静态照相机与电闪光单元耦合或结合，其中测量从被摄体反射的光量的光敏接收器位于可调辅助光阑之后。 辅助隔膜可用主隔膜调节，以改变闪光灯组件控制电路的阈值。 主隔膜和辅助隔膜之间的运动传递连接在响应中或在拆卸可拆卸的闪光单元之前是可分离的，使得当闪光单元分离时或者当照相机的外壳时主聚光环可以被聚焦环调节 与不同的闪光灯组件连接。

公开(公告)号：US3726195A

公开(公告)日：1973-04-10

申请号：US3726195D

申请日：1970-11-12

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K ,  GANSER J

IPC: G03B9/70 ,  G03B15/04 ,  H01H57/00

CPC classification number: G03B9/70 ,  G03B15/0463

Abstract: The photoflashbulb is fired by the voltage generated by a piezoelectric crystal when the crystal is struck by a hammer released by a shutter when the latter is operated. Shunted across the crystal and bulb is a photoresistor, the resistance of which is sufficiently small, when scene brightness is adequate to permit taking pictures without the flash of the bulb, to dampen the crystal so that the voltage generated is too small to fire the bulb. In a second embodiment the conductivity of a transistor, connected in shunt with the crystal, is controlled by the photoresistor, the transistor being conductive whenever the scene brightness is adequate.

Abstract translation: 当闪光灯由压电晶体产生的电压激发时，当晶体被操作时由快门释放的锤子撞击时，闪光灯被点燃。 分流在晶体和灯泡上的是一个光电阻，其电阻足够小，当场景亮度足以允许拍摄没有灯泡的闪光灯时，抑制晶体，使得产生的电压太小而不能触发灯泡 。 在第二实施例中，与晶体分流连接的晶体管的电导率由光敏电阻控制，每当场景亮度足够时，晶体管是导通的。

公开(公告)号：US3710704A

公开(公告)日：1973-01-16

申请号：US3710704D

申请日：1971-01-12

Applicant: AGFA GEVAERT AG

Inventor： WAGNER K

IPC: G03B15/04 ,  G03B17/56

CPC classification number: G03B15/0463 ,  G03B15/0452

Abstract: An illuminating arrangement having a flash circuit which is built into the body of a camera and utilizing flashcubes whose bases can be inserted into a socket of the camera body. The flash circuit has two contacts which are engaged by the electrodes of a selected flash lamp of that flashcube which is connected with the camera body. An arcuate elastic metallic element short-circuits the electrodes of all such flash lamps which are not in proper position for illumination of a subject or scene. The flash circuit has a normally open synchronizing switch in series with the two contacts and with a source of high voltage, such as a battery and a capacitor connected with a transformer or a piezoelectric crystal which can be struck by an impeller on closing of the switch to induce a voltage which is high enough to fire that flash lamp whose electrodes are connected with the contacts of the flash circuit.

Abstract translation: 具有闪光电路的照明装置，其内置在照相机的主体中并且使用其底座可以插入照相机主体的插座中的闪光灯。 闪光电路具有两个触点，这两个触点由与相机主体连接的闪光灯的所选择的闪光灯的电极接合。 弧形弹性金属元件使所有这些闪光灯的电极短路，这些闪光灯不在适当位置以照射被摄体或场景。 闪光电路具有与两个触点串联的常开同步开关和高电压源，例如电池和与变压器连接的电容器或压电晶体，在关闭开关时可被叶轮撞击 以引起足够高的电压来使其电极与闪光电路的触点连接的闪光灯发射。