公开(公告)号：US5473398A

公开(公告)日：1995-12-05

申请号：US189367

申请日：1994-01-31

申请人： Susan J. Metler ,  David C. Smart ,  Dennis R. Zander

发明人： Susan J. Metler ,  David C. Smart ,  Dennis R. Zander

IPC分类号： G03B17/30 ,  G03B17/26

CPC分类号： G03B17/30 ,  G03B2217/265

摘要： A light-shielding door of a film cassette when opened overlaps an extension of a film gate device to bridge a gap between the film cassette and the film gate device, to facilitate movement of a leading end of a filmstrip from the film cassette onto film support rails of the film gate device.

摘要翻译： 当打开胶片盒的遮光门与胶片门装置的延伸部重叠，以便在胶片暗盒和胶片门装置之间形成间隙，以便胶片的前端从胶片暗盒移动到胶片支架上 电影门装置的导轨。

公开(公告)号：US5231438A

公开(公告)日：1993-07-27

申请号：US797759

申请日：1991-11-25

申请人： David C. Smart

发明人： David C. Smart

IPC分类号： G03B17/30 ,  G03C3/00

CPC分类号： G03B17/30 ,  G03B2217/261 ,  G03B2217/263 ,  G03B2217/265 ,  G03B2217/266 ,  G03B2217/268

摘要： In a camera to be used with a self-opening cassette, an interlock for a cover piece of the camera and a light valve of the cassette prevents the cover piece from being opened when the light valve cannot be closed because a filmstrip is protruding out of the cassette.

公开(公告)号：US5032854A

公开(公告)日：1991-07-16

申请号：US560921

申请日：1990-07-31

申请人： David C. Smart ,  J. David Cocca

发明人： David C. Smart ,  J. David Cocca

IPC分类号： G03B17/24 ,  G03B7/24 ,  G03B17/26 ,  G03B17/30 ,  G03B17/42 ,  G03C3/00

CPC分类号： G03B7/24 ,  G03B17/30 ,  G03B17/425 ,  G03B2206/008 ,  G03B2217/263

摘要： A radial bar code providing DX film information is disposed on a disc mounted at an axial end of a film cassette, the disc being rotatable with rotation of the film spool during film extraction and rewind. Film exposure status visual indicators are disposed on the disc and the cassette housing. A stationary optical reader in the camera in association with a logic and control circuit is provided to read the DX information from the rotating disc during film extraction for suitable control of exposure conditions in the camera. During film rewind the angular positioning of the disc can be measured from the bar code to cause the disc to be stopped at the end of rewind with appropriate ones of the status indicators aligned to provide a visual indication of the film exposure status to the camera user.

摘要翻译： 提供DX胶卷信息的径向条形码设置在安装在胶片暗盒的轴向端部的盘上，该盘可在胶片提取和倒带期间随着胶片卷轴的旋转而旋转。 胶片曝光状态视觉指示器设置在盘和盒壳体上。 提供与逻辑和控制电路相关联的照相机中的固定光学读取器，以在胶片提取期间从旋转盘读取DX信息，以适当地控制照相机中的曝光条件。 在胶片倒带期间，可以从条形码测量光盘的角度定位，以便在倒带结束时使光盘停止，同时将适当的状态指示器对准，以向摄像机用户提供胶片曝光状态的视觉指示 。

公开(公告)号：US5017910A

公开(公告)日：1991-05-21

申请号：US397820

申请日：1989-08-24

申请人： Arnold S. Farber ,  Stephen P. Lang ,  David C. Smart

发明人： Arnold S. Farber ,  Stephen P. Lang ,  David C. Smart

IPC分类号： G01D21/00 ,  G01R31/02 ,  G01R31/28 ,  G08B3/10 ,  G08B29/06 ,  G08B29/14

CPC分类号： G01R31/2834

摘要： A monitoring or control system includes a plurality of senders or sensors which are coupled to a central control unit by separate cables. The control unit includes a microprocessor which executes an intermittent fault detection algorithm while an operator manually flexes each cable in turn. When a cable with a fault is manipulated the algorithm responds by energizing a horn.

摘要翻译： 监视或控制系统包括多个发送器或传感器，它们通过单独的电缆耦合到中央控制单元。 控制单元包括微处理器，该微处理器执行间歇故障检测算法，同时操作者依次手动地弯曲每个电缆。 当操作具有故障的电缆时，算法通过激励喇叭来响应。

公开(公告)号：US4994828A

公开(公告)日：1991-02-19

申请号：US436265

申请日：1989-11-14

申请人： David C. Smart

发明人： David C. Smart

IPC分类号： G03B17/18 ,  G03B17/30 ,  G03C3/00

CPC分类号： G03B17/30 ,  G03B2217/263 ,  G03B2217/266 ,  G03B2217/268

摘要： In a camera to be used with a light-tight cassette which in inherently capable of automatically advancing a filmstrip from the cassette shell whether the filmstrip is generally unexposed, partly exposed or substantially completely exposed, and which has a status indicator for providing a visible indication of the exposure status of the filmstrip, a sensing/blocking member is included to cooperate with the status indicator to prevent cassette loading into the camera in one embodiment only when the status indicator indicates that the filmstrip is completely exposed and in another embodiment either when the status indicator indicates that the filmstrip is partly exposed or it indicates that the filmstrip is completely exposed.

公开(公告)号：US4992812A

公开(公告)日：1991-02-12

申请号：US379744

申请日：1989-07-14

申请人： David C. Smart

发明人： David C. Smart

IPC分类号： G03B1/50 ,  G03B1/56 ,  G03B17/30

CPC分类号： G03B17/30 ,  G03B1/50 ,  G03B1/56 ,  G03B2217/266

摘要： In a camera adapted for use with a film cassette containing a non-protruding film leader which can be automatically propelled out of the cassette, a plurality of film guide members are located along opposite sides of a film advance path leading from a receiving chamber for the cassette to a film take-up means. The guide members are movable closer together to transversely bow the film leader to thereby increase the longitudinal stiffness of the leader to facilitate its being propelled along the film advance path without being snagged. When the film leader is secured to the film take-up means, the guide members are moved slightly apart to permit a film pressure plate to flatten successive imaging areas of the filmstrip over an exposure opening in the film advance path.

摘要翻译： 在适于与包含能够自动地推出盒子的非突出的胶片引导件的胶卷盒一起使用的相机中，多个胶片导向件沿着从用于 盒式磁带收卷机。 引导构件可移动靠近在一起以使薄膜引导件横向弯曲，从而增加引导件的纵向刚度，以便于其沿胶片前进路径被推进而不被阻塞。 当胶卷头固定在胶片卷取装置上时，引导件略微移动，以允许胶片压板在胶片前进路径上的曝光开口上使胶片的连续成像区域变平。

公开(公告)号：US4956658A

公开(公告)日：1990-09-11

申请号：US379752

申请日：1989-07-14

申请人： David C. Smart

发明人： David C. Smart

IPC分类号： G03B17/30

CPC分类号： G03B17/30 ,  G03B2217/266

摘要： In a photographic camera adapted for use with a film cassette containing a non-protruding film leader which can be automatically propelled out of the cassette, a pair of film guide members are fixed along opposite sides of a film threading path leading from a receiving chamber for the cassette. The film leader is wider than the substantial remainder of the filmstrip, and the film guide members are spaced apart a predetermined distance which is slightly less than the leader and slightly greater than the remaining length of the filmstrip, to cause the leader to be transversely bowed as it is propelled between the fixed guide members. When the film leader is transversely bowed, it becomes longitudinally stiffened to prevent it from being snagged along the film threading path.

摘要翻译： 在适于与包含能够自动地从盒中推出的非突出的胶片引导件的胶卷盒一起使用的照相机中，一对胶片导向件沿着从用于 盒式磁带。 影片领导者比幻灯片的实质性剩余部分宽，并且胶片引导部件间隔开预定距离，该预定距离稍微小于前导片并稍微大于胶片的剩余长度，以使得引导者横向弯曲 因为它在固定导向件之间被推进。 当导片横向弯曲时，它变得纵向加强，以防止它沿着薄膜穿线路径被阻塞。

公开(公告)号：US4497553A

公开(公告)日：1985-02-05

申请号：US489272

申请日：1983-04-27

申请人： David C. Smart

发明人： David C. Smart

IPC分类号： G03B9/70 ,  G03B15/04 ,  G03B9/16

CPC分类号： G03B9/70

摘要： Opening and closing blades of a shutter are actuated substantially simultaneously with flash firing means igniting a chemical flash lamp. However, initial opening of the shutter is delayed after flash ignition to synchronize full opening of the shutter with the peak intensity of the ignited flash lamp. In operation, the actuated blades are moved in a forward direction, jointly, to prevent shutter opening, and are returned in a reverse direction, successively, with the opening blade moving ahead of the closing blade, to open the shutter for a relatively short exposure time.

摘要翻译： 快门的打开和关闭叶片基本上与闪光发射装置基本上同时点燃化学闪光灯。 然而，在闪光点火之后，快门的初始打开被延迟以使快门的全部打开与点燃的闪光灯的峰值强度同步。 在操作中，致动的叶片共同向前移动以防止快门打开，并且在打开叶片在关闭叶片前方移动的情况下依次向相反方向返回，以使相对较短曝光的快门打开 时间。