专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US5701525A Camera encoder assembly, system and method thereof 失效
标题翻译：相机编码器组件，系统及其方法
公开(公告)号：US5701525A
公开(公告)日：1997-12-23
申请号：US758338
申请日：1996-12-03
申请人： Garret J. Caterino , Patrick W. Hopkins , Elliott S. Strizhak
发明人： Garret J. Caterino , Patrick W. Hopkins , Elliott S. Strizhak
IPC分类号： G03B7/10 , G03B9/20 , G03B9/08 , G01D5/36 , G03B13/34
CPC分类号： G03B7/10 , G03B9/20
摘要： A camera shutter and focus encoder assembly comprises an encoder mask fixed in a camera housing and having an arcuate window having alternating opaque and transmissive portions, and an encoder sheet mounted in the housing in abutting relationship with the encoder mask, the encoder sheet being movable with exposure blades and the focus lens of the camera and having an arcuate window having alternating opaque and transmissive portions therein. Means are provided for pressing the encoder mask and the encoder sheet together with the mask and sheet windows in registration with each other. A sensor passes pulses of light through the mask and sheet windows when the transmissive portions thereof are in registration and detects the pulses of light, converts the light pulses to electrical signals, and transmits the electrical signals. A controller receives the electrical signals and determines therefrom the position and direction of movement of the shutter blades, compares the blade position and movement direction with a preselected program and sends to a motor a signal instructing any required compensating shutter blade movement change, and in like manner monitors the focus assembly and sends to the motor a signal instructing any required compensating lens movement change.
摘要翻译：相机快门和对焦编码器组件包括：固定在相机外壳中并具有交替不透明部分和透射部分的弧形窗口的编码器掩模，以及安装在壳体中与编码器掩模邻接的编码器片，编码器片可与曝光刀片和相机的聚焦透镜，并且具有在其中具有交替的不透明部分和透射部分的弧形窗口。提供了用于将编码器掩模和编码器片与掩模和片材窗口一起按压对准的装置。当传感器的透射部分对准并且检测到光脉冲时，传感器将光脉冲通过掩模和片状窗口，将光脉冲转换为电信号，并传输电信号。控制器接收电信号并由此确定快门叶片的移动位置和方向，将刀片位置和移动方向与预选程序进行比较，并向马达发送指示任何所需的补偿快门叶片运动变化的信号，并以类似方式方式监控聚焦组件，并向电机发送指示任何所需补偿镜头运动变化的信号。

IPRDB

热门服务

关于我们

友情链接

联系方式