会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明授权
    • Photometry system
    • 测光系统
    • US5471276A
    • 1995-11-28
    • US424606
    • 1995-04-17
    • Isamu HiraiHideaki Tsuji
    • Isamu HiraiHideaki Tsuji
    • G03B7/091G03B7/099G03B7/16G03B17/18
    • G03B7/091G03B7/09979G03B7/16
    • A photometry system for a camera has a finder optical system for receiving light reflected by an object and for forming an image of the object on a finder field, the image corresponding to an image that is formed on a film surface. The photometry system also includes an indicator for projecting a predetermined image onto a predetermined area of the finder field: a photometric sensor that detects a brightness of the image formed on the finder field; and a controller which inhibits the indicator from projecting the predetermined image onto the finder field when the photometric sensor is detecting a brightness of a portion of the finder field which includes the predetermined area.
    • 用于相机的测光系统具有取景器光学系统,用于接收由物体反射的光并用于在取景器场上形成物体的图像,该图像对应于形成在胶片表面上的图像。 测光系统还包括用于将预定图像投影到取景器场的预定区域上的指示器:用于检测在取景器场上形成的图像的亮度的光度传感器; 以及当所述测光传感器检测到包括所述预定区域的取景器场的一部分的亮度时,禁止所述指示器将所述预定图像投影到所述取景器场上的控制器。