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公开(公告)号：US5713055A
公开(公告)日：1998-01-27
申请号：US756315
申请日：1996-11-25
CPC分类号： G03B7/16
摘要： A flash control circuit for a camera flash circuit in which a scene ambient light sensing circuit is coupled to the main flash capacitor which serves as the sole energy source for the light sensing circuit independent of the battery source. The ambient light sensing circuit comprises a light sensing device and resistor coupled in series across a zener diode which serves as a fixed voltage reference device for the light sensing circuit. In a preferred embodiment, the ambient light sensing circuit is coupled in series with the flash sync switch across the flash capacitor such that activation of the light sensing circuit occurs only while the sync switch is closed.
摘要翻译： 一种用于相机闪光灯电路的闪光控制电路，其中场景环境光感测电路耦合到主闪光电容器，主闪光电容器用作独立于电池源的光感测电路的唯一能量源。 环境光感测电路包括光电耦合器件和电阻器，其串联耦合在齐纳二极管上，该齐纳二极管用作光感测电路的固定电压参考装置。 在优选实施例中，环境光感测电路与快闪电容器上的闪光同步开关串联耦合，使得仅在同步开关闭合时才发生光感测电路的激活。
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公开(公告)号：US06826365B1
公开(公告)日：2004-11-30
申请号：US10679803
申请日：2003-10-06
申请人： Douglas W. Constable
发明人： Douglas W. Constable
IPC分类号： G03B1505
CPC分类号： G03B15/05 , G03B2215/05 , H05B41/32
摘要： A flash circuit for use in a camera, the flash charging circuit comprising a flash light discharge circuit having a light emitting element electrically connected to a flash capacitor; a flash triggering circuit connected to the flash light discharge circuit with the flash triggering circuit having a trigger signal generating circuit generating a signal that enables energy from the energy storage device to be converted into light by the light emitting element; a voltage conversion circuit connected between a battery and the flash capacitor to convert energy from a source voltage into a higher voltage to charge the flash capacitor; a timer circuit to cause the voltage conversion circuit to operate when the voltage at a timing capacitor is within a range of voltages, said timer circuit having a time constant circuit connected to the timing capacitor to discharge energy stored in the timing capacitor at a predetermined rate; a reset circuit that resets the timing capacitor voltage to a voltage that is within the range.
摘要翻译： 一种用于照相机的闪光电路，所述闪光充电电路包括具有电连接到闪光电容器的发光元件的闪光灯放电电路; 闪光触发电路连接到闪光灯放电电路，闪光触发电路具有触发信号发生电路，该触发信号产生电路产生使来自能量存储装置的能量能够被发光元件转换成光的信号; 连接在电池和闪光电容器之间的电压转换电路，用于将来自电源电压的能量转换成更高的电压以对闪光电容器充电; 定时器电路，用于当定时电容器的电压在电压范围内时使电压转换电路工作，所述定时电路具有连接到定时电容器的时间常数电路，以预定的速率放电存储在定时电容器中的能量 ; 将定时电容器电压复位到该范围内的电压的复位电路。
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公开(公告)号：US5781804A
公开(公告)日：1998-07-14
申请号：US752700
申请日：1996-11-19
申请人： Douglas W. Constable
发明人： Douglas W. Constable
CPC分类号： H05B41/32
摘要： A single touch flash capacitor charging circuit particularly useful in low cost cameras incorporating an oscillation timeout circuit to arrest self-sustaining oscillations for conserving battery consumption. The timeout circuit includes a reference voltage integration circuit coupled to the secondary of the oscillation transformer to develop a reference voltage that is independent of battery voltage. A timer charging circuit is coupled to the voltage reference circuit and determines the timeout period. Closing of a start charge switch resets the timer charging circuit to a fixed voltage differential from the integration circuit reference voltage. When the start charge switch is opened, the timer circuit begins charging to the voltage reference. Once initiated, the flash capacitor charger circuit continues charging the flash capacitor for the duration of the timeout period set by the timer circuit. At the end of the timeout period, the timer charging circuit turns on a pair of switching transistors which operate to shunt off the oscillation transistor in the flash capacitor charger circuit. The start switch resets the timer circuit either through the emitter-base coupled transistors or by auxiliary switch contacts which couple the timer circuit directly to the battery terminal. A low voltage LED charge indicator circuit is also coupled to the transformer secondary to indicate full charge of the flash capacitor.
摘要翻译： 单触摸闪光电容器充电电路特别适用于包含振荡超时电路的低成本相机，以阻止自我维持的振荡以节省电池消耗。 超时电路包括耦合到振荡变压器次级的参考电压积分电路，以开发独立于电池电压的参考电压。 定时器充电电路耦合到电压参考电路并确定超时周期。 关闭启动充电开关将定时器充电电路从积分电路参考电压复位到固定的电压差。 当启动充电开关打开时，定时器电路开始向参考电压充电。 一旦启动，闪光电容充电器电路在由定时器电路设置的超时时间的持续时间内继续对闪存电容器充电。 在超时时间结束时，定时器充电电路接通一对开关晶体管，其操作以分流闪存电容器充电器电路中的振荡晶体管。 启动开关通过发射极 - 基极耦合的晶体管或通过将定时器电路直接耦合到电池端子的辅助开关触点来复位定时器电路。 低压LED充电指示器电路还耦合到变压器次级以指示闪光电容器的完全充电。
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公开(公告)号：US5574521A
公开(公告)日：1996-11-12
申请号：US585004
申请日：1996-01-11
IPC分类号： G03B17/24
CPC分类号： G03B17/24 , G03B2217/002 , G03B2217/243
摘要： Optical film encoding apparatus comprising an LED with a pair of wire leads, and means for supporting the LED including its wire leads to precisely position the LED opposite a filmstrip to be optically encoded, is characterized in that the supporting means supports each one of the wire leads suitably bent at multiple angles to prevent stray ambient light from following the wire leads towards the filmstrip. Preferably, the supporting means includes a lead spreader which supports the wire leads bent at an initial one of the multiple angles closest to the LED in opposite directions to dynamically balance the deformation forces applied to the wire leads due to their being bent. This is done to prevent the deformation forces from otherwise tending to shift the LED from being precisely positioned relative to the filmstrip.
摘要翻译： 包括具有一对引线引线的LED的光学膜编码设备，以及用于支撑包括其导线的LED的装置，用于精确定位与光学编码的胶片相对的LED，其特征在于支撑装置支撑每根线 引线适当地以多个角度弯曲，以防止杂散环境光跟随导线朝向胶片。 优选地，支撑装置包括引线扩张器，其支撑在相反方向上以最接近LED的多个角度中的初始角度弯曲的引线，以动态平衡由于弯曲而施加到导线的变形力。 这样做是为了防止变形力从而不会使LED相对于胶片被精确地定位。
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公开(公告)号：US5567543A
公开(公告)日：1996-10-22
申请号：US439331
申请日：1995-05-11
申请人： Douglas W. Constable
发明人： Douglas W. Constable
摘要： A film and battery unit comprises a filmstrip having a photosensitive side with successive imaging areas at which respective exposures are to be made and a non-photosensitive side, and a thin, flat, flexible battery extending at least substantially along the non-photosensitive side of the filmstrip for providing electrical energy incidental to making the exposures, whereby the filmstrip and the flexible battery can be coiled into a roll inside a film cassette for example. Preferably, an adhesive releasably secures the flexible battery to the non-photosensitive side of the filmstrip to allow the flexible battery to be stripped from the filmstrip before the filmstrip is chemically processed to render the exposures visible.
摘要翻译： 膜和电池单元包括具有感光侧的胶片，具有连续的成像区域，在该区域将形成相应的曝光和非感光侧，以及薄的，平坦的柔性电池，其至少基本沿着非感光侧的非感光侧延伸 用于提供与曝光相关的电能的胶片，由此胶片和柔性电池可以卷绕成例如胶卷盒内的卷筒。 优选地，粘合剂将柔性电池可释放地固定到胶片的非感光侧，以允许柔性电池从胶片上剥离，然后胶片被化学处理以使曝光可见。
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公开(公告)号：US5303056A
公开(公告)日：1994-04-12
申请号：US944866
申请日：1992-09-14
申请人： Douglas W. Constable
发明人： Douglas W. Constable
CPC分类号： H04N1/4015
摘要： A system is provided that causes the CRT of a CRT printer to produce images on the screen of the CRT, which when projected onto a photographic media will have uniform illumination at all points on the photographic media. The system accomplishes the foregoing by dynamically changing the amplitude (gain) of the video image signal applied to the CRT.
摘要翻译： 提供了一种使CRT打印机的CRT在CRT的屏幕上产生图像的系统，其在投影到照相介质上将在照相介质上的所有点处具有均匀的照明。 该系统通过动态地改变施加到CRT的视频信号的幅度（增益）来实现上述。
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公开(公告)号：US06768869B2
公开(公告)日：2004-07-27
申请号：US10127945
申请日：2002-04-23
申请人： Douglas W. Constable
发明人： Douglas W. Constable
IPC分类号： G03B1702
摘要： In one aspect of the invention, what is provided is a camera body adapted to be joined to a cover having an outer electronic circuit with a set of electrical contacts, said contacts being positioned by the cover in relation to an aperture. The camera body comprises a primary electronic circuit with a set of electrical contacts adapted to engage the electrical contacts of the outer electronic circuit and to cooperate therewith to perform a set of camera functions when the set of electrical contacts from the outer electronic circuit is held against the set of electrical contacts from the inner electronic circuit. A post is aligned with the set of electrical contacts of the inner electronic circuit said post being adapted to engage an aperture in the cover so that as the cover is joined to the body, the set of electrical contacts from the outer electronic circuit is aligned with the set of electrical contacts from the inner electronic circuit.
摘要翻译： 在本发明的一个方面，提供了一种适于连接到具有一组电触点的外部电子电路的盖的相机主体，所述触点相对于一个孔被该盖定位。 相机主体包括主电子电路，其具有适于与外部电子电路的电触头接合的一组电触头，并且当来自外部电子电路的一组电触点被抵抗时，与其配合以执行一组相机功能 来自内部电子电路的一组电触头。 柱与内部电子电路的一组电触点对准，所述柱适于接合盖中的孔，使得当盖被接合到主体时，来自外部电子电路的一组电触点与 来自内部电子电路的一组电触头。
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公开(公告)号：US06574430B1
公开(公告)日：2003-06-03
申请号：US10033482
申请日：2001-12-27
申请人： Douglas W. Constable
发明人： Douglas W. Constable
IPC分类号： G03B1505
CPC分类号： G03B17/02
摘要： In one aspect of the present invention, camera electrical system is provided for use in a family of recyclable cameras each camera having a set of desired electronic functions. The camera electrical system has a first electronic circuit for performing a first set of electronic operations including charging a flash capacitor and discharging the flash capacitor through a flash tube to cause a flash of light during photography; said first electronic circuit having a first set of electrical contacts. More than one second electronic circuit is provided. Each second circuit has contacts to engage at least one of the first set of electrical contacts, wherein the first electronic circuit and each of said second electronic circuits are adapted to cooperate in a combined circuit comprising the first electronic circuit and more than one of said second circuits to perform the set of desired camera functions.
摘要翻译： 在本发明的一个方面，照相机电气系统被提供用于可回收照相机系列，每个摄像机具有一组期望的电子功能。 相机电气系统具有用于执行第一组电子操作的第一电子电路，包括对闪光电容器进行充电，并通过闪光管对闪光电容器进行放电，以在摄影期间引起闪光; 所述第一电子电路具有第一组电触头。 提供了多于一秒的电子电路。 每个第二电路具有接触以接合第一组电触点中的至少一个，其中第一电子电路和每个所述第二电子电路适于在包括第一电子电路的组合电路和多于一个所述第二电子电路 执行所需相机功能的电路。
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公开(公告)号：US6054814A
公开(公告)日：2000-04-25
申请号：US149688
申请日：1998-09-08
申请人： Douglas W. Constable
发明人： Douglas W. Constable
CPC分类号： H05B41/32
摘要： In a flash circuit for a single use camera, a minimum residual charge voltage level is maintained on a flash capacitor to ensure availability of an energy source to operate an auxiliary circuit, such as an optical data recording circuit, even after prolonged periods of non-use of the camera. This minimum charge voltage level is maintained by provision of a DC circuit path from the camera battery via the charger circuit and flash power rectifier diode to the flash capacitor. Automatic restart of the flash charging circuit upon closing of the flash trigger switch is assured by connecting the charging circuit start terminal to the trigger switch by means of a normally reverse biased re-start diode that isolates the start terminal from the flash capacitor voltage on the trigger circuit at all times when the flash trigger switch is open. To avoid inadvertent start up of the flash charger during camera assembly when the battery is installed, an assembly process employs precharging of the flash capacitor to maintain the re-start diode in reverse biased mode during the assembly process.
摘要翻译： 在单次使用照相机的闪光电路中，闪光电容器上保持最小的剩余电荷电平，以确保即使经过长时间的非易失性存储器之后能量来源来操作诸如光学数据记录电路的辅助电路， 使用相机。 通过从相机电池经由充电器电路和闪光电源整流二极管提供到闪存电容器的DC电路路径来维持该最小充电电压电平。 通过将充电电路起始端子连接到触发开关，通过将起动端子与闪光电容器电压隔离开的正反向偏置重启二极管来确保闪光充电电路在关闭闪光触发开关时自动重启 闪光触发开关打开时始终触发电路。 为了避免在安装电池的情况下在相机组装过程中无意中启动闪光灯充电器，组装过程会在组装过程中使用闪光电容器的预充电来保持重启二极管处于反向偏置模式。
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公开(公告)号：US5761541A
公开(公告)日：1998-06-02
申请号：US825077
申请日：1997-03-27
CPC分类号： G03B15/05 , G03B2215/0503 , G03B2219/045
摘要： A single use camera having an electronic flash assembly including a flash charging circuit and a flash illumination circuit is provided with one or more access openings in the camera cover. The access openings are aligned with contact terminals in the flash charging circuit to allow insertion of a shorting device that acts to disable operation of the flash charging circuit. This is useful during a film loading operation to prevent charging of the flash capacitor which might otherwise be caused by electrostatic start up of the flash charging circuit. Preventing operation of the flash charging circuit in preference to shorting of the flash capacitor directly preserves battery power and assures the flash charging transistors will not be damaged by attempting to charge into a short circuited flash capacitor.
摘要翻译： 具有包括闪光充电电路和闪光照明电路的电子闪光灯组件的单次使用照相机在相机盖中设置有一个或多个存取开口。 进入开口与闪光充电电路中的接触端子对准，以允许插入用于禁止闪光充电电路的操作的短路装置。 这在胶片装载操作期间是有用的，以防止闪光电容器的充电，否则可能由闪光充电电路的静电启动引起。 避免闪光充电电路的操作优先于闪光电容器的短路，直接保持电池电量，并确保闪光灯充电晶体管不会因试图充入短路闪光电容器而损坏。
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