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Range finder and camera with range finder

A distance measuring device and camera technology, applied in the field of cameras, can solve problems such as unbalanced configuration of distance measuring areas

Inactive Publication Date: 2004-10-13
OLYMPUS OPTICAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0011] However, in the line sensor of the above-mentioned JP-A-11-153749 distance measuring device, some of the light receiving parts are too close to each other, and the other part of the light receiving parts are too far apart, and the arrangement of the distance measuring areas is unbalanced.

Method used

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  • Range finder and camera with range finder
  • Range finder and camera with range finder
  • Range finder and camera with range finder

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Embodiment Construction

[0036] Embodiments of the present invention will be described below with reference to the drawings.

[0037] figure 1 It is a main block diagram of an imaging device equipped with a distance measuring device according to the first embodiment of the present invention. FIG. 2 is a perspective view of an imaging optical system and a distance measuring optical system of the imaging device. image 3 It is a figure which shows the range measurement area on the imaging screen in the said imaging device. Figure 4 It is a figure which shows the internal arrangement|positioning of the distance measuring sensor in the said imaging device.

[0038] The imaging device 1 employs, for example, a silver chloride camera. In this camera device, such as figure 1 As shown, the subject image is imaged on the imaging surface 10 of the imaging unit (imaging mechanism) 7 such as silver chloride film by the imaging optical system 5 having the optical axis O, and the imaging is performed. The d...

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Abstract

Provided is an inexpensive range-finding device capable of sufficiently maintaining the density of a range-finding area and performing the sure range- finding of a subject by proper arrangement. In the range-finding sensor applied to this range-finding device, three pairs of line sensors are arranged on the right and left sides of a control circuit with the circuit as the center. The central line sensor among the line sensors is constituted of a light receiving part train and bisected processing part trains for processing output signal from the light receiving part train. The line sensors are arranged on opposite sides to the processing part trains on the upper and lower sides of the light receiving part train of the line sensor. The line sensors are respectively provided with the light receiving part trains corresponding to the bisected length of the line sensor. By arranging the line sensors in such a way, the accurate range-finding of a subject made possible.

Description

[0001] This application is a division of the earlier application filed on July 13, 2001 with the application number 01120296.3. technical field [0002] The present invention relates to cameras such as a distance measuring device, an optical sensor, a silver chloride camera incorporating a distance measuring device, and a digital camera. Background technique [0003] In the prior art, in order to measure the distance of the subject, the distance measuring device adopts a distance measuring sensor provided with several pairs of line sensors. For example, there is a distance measuring device that performs distance measurement in a wide range where a plurality of line distance measurement areas are provided. In this distance measuring device, the more distance measuring areas correspond to the line sensor, the more reliably the subject can be captured, and the distance measuring accuracy can be improved. [0004] When this distance measuring device is used for a silver chlorid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C3/06G02B7/30G03B13/34
CPCG03B13/34
Inventor 井出昌孝
Owner OLYMPUS OPTICAL CO LTD