专利汇可以提供Camera having automatic focusing device专利检索,专利查询,专利分析的服务。并且PURPOSE: To improve the operating convenience of a camera at the time of macro photographing by displaying a message indicating that photographing magnification exceeds a prescribed value.
CONSTITUTION: Incident light obtained through a photographing lens 9 in the camera is reflected by a mirror 4 and passed through a focus plate 3, translucent liquid crystal 2, etc., to display the range or the like of a subject to a photographer. A part of the incident light is made incident upon a focus detecting part 8 through the mirror 4 and detection data are inputted to a control circuit 7. The circuit 7 controls an LCD driving circuit 6 based upon the data to allow the liquid crystal 2 or light emitting elements to display an image. After setting up a focused state, the circuit 7 calculates photographing magnification, and when the magnification exceeds the prescribed value (e.g. ≥1/10), the effect that it is macro photographing is displayed.
COPYRIGHT: (C)1992,JPO&Japio,下面是Camera having automatic focusing device专利的具体信息内容。
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