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Camera device having automatic focusing function

A technology for photographing equipment and display devices, which is applied in the directions of cameras, camera bodies, focusing devices, etc.

Inactive Publication Date: 2007-03-07
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, even when using a camera that notifies the currently set focus mode, few users know (remember) the specific shooting distance covered in each focus mode

Method used

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  • Camera device having automatic focusing function
  • Camera device having automatic focusing function
  • Camera device having automatic focusing function

Examples

Experimental program
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Embodiment Construction

[0049] Embodiments of a photographic apparatus according to the present invention will now be described with reference to the accompanying drawings.

[0050] FIG. 1 is a block diagram of a digital camera 1 according to an embodiment of the present invention. A digital camera 1 has an automatic focus (AF) function, and includes a focus lens (focus lens) 2, a zoom lens 3 (zoom device), a charge-coupled device (CCD) 4, correlated double sampling (CDS) / analog-to-digital conversion (AD) ) module 5, timing pulse generator (TG) 6, CCD data preprocessing module 7, color processing (CP) module 8, JPEG (Joint Photographic Experts Group) encoder 9, DRAM 10, built-in flash memory 11, RAM 12, A central processing unit (CPU) 13 , an image display unit 14 , a key module 15 , a card interface 16 , and a motor drive module 17 . A memory card 18 detachably loaded into a card slot of a camera body (not shown) is connected to the card interface 16 .

[0051] The focus lens 2 and the zoom lens 3...

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PUM

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Abstract

An optical system, comprising: photographic equipment, which includes a focus lens; a focus control device for focusing the optical system on a scene by driving the focus lens; and a display control device for causing a display device to display a scene representing the scene Numbers of the first distance at the near end and the second distance at the far end of the distance range in which the focus control device is capable of focusing the optical system.

Description

technical field [0001] The present invention relates to a photographic device with an automatic focus function that can be used in a digital camera. Background technique [0002] Heretofore, in photographic devices such as digital cameras or conventional cameras using silver halide film, the autofocus function has generally been used by various systems. Some auto-focus functions of digital cameras are designed to be set in multiple focus modes, and each focus mode has a different range of subject distance (focus adjustable range) for focusing on the subject. Common focus modes include normal mode, for covering shooting distances from tens of centimeters to infinity, for landscape or snapshot (snap) shooting, and macro mode, for covering shooting distances from a few centimeters to tens of centimeters , for close-ups of small subjects such as flowers and insects. [0003] In a photographing device having a plurality of focus modes, it is desirable to notify the photographer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/232G03B13/16G02B7/28G03B13/36G03B17/18H04N5/225
CPCH04N5/23293G03B13/16H04N5/23212H04N23/673H04N23/633
Inventor 小野泽将
Owner CASIO COMPUTER CO LTD