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Lens device and digital camera using same

A camera and lens technology, which is applied to the camera, camera body, installation, etc., can solve problems such as reducing the cost of lens devices

Inactive Publication Date: 2005-02-02
OLYMPUS CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And, in addition to this thinning, it is also necessary to reduce the cost of the lens device

Method used

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  • Lens device and digital camera using same
  • Lens device and digital camera using same
  • Lens device and digital camera using same

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Embodiment Construction

[0044] Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in the following description, the above-mentioned one main surface is composed of, for example, the surface of the metal frame 23a and the surface of the first fixed mirror frame part 15 integrally formed with the metal frame 23a, and the opposite main surface is composed of an open surface. In addition, the optical element is constituted by, for example, a prism L1, lenses L2 to L9, and the like, and the reflective optical element is constituted by a prism L1 and the like. In addition, the above-mentioned forming part is composed of, for example, the first fixed frame part 15 and the second fixed frame part 16, etc., the above-mentioned one side is composed of, for example, a metal frame 23b, and the other side facing it is composed of an open surface. Moreover, the said 1st guide member is comprised by the 1st guide shaft 65 etc., for example, and the said ...

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Abstract

Provided is a lens device realizing further thinning and the reduction of cost, and a digital camera using the lens device. As to a lens device 7, all the members are arranged in a rectangular paralelepipedic space which is flat in a front-and-rear direction and long lengthwise and is formed by a main fixed lens frame 22. In the rectangular paralelepipedic space, the opposite surface to the metallic frame 23a of the main surface and opposite surface to the metallic frame 23b of one side surface in a longitudinal direction are open surfaces, and the fixed lens frame parts 15 and 16 made of resin are integrally formed with the metallic frames 23a, 23b and 23c. A lens prism L1 is fixed, three moving lens frames 17, 18 and 19 for zooming and for focusing through which guide shafts 65 and 68 are inserted are arranged, an imaging lens is fixed, and an imaging device 14 is arranged at the lowermost part successively from the top to the bottom so as to occupy 2 / 3 of the width of the rectangular paralelepipedic space. A motor unit for zooming 35 is arranged behind the lens prism L1, and a shaft cam for zooming 25, a diaphragm / shutter unit 42, an ultrasonic linear motor for focusing 46 and a magnetic sensor unit 47 are arranged along a lens frame group.

Description

technical field [0001] The present invention relates to a thin lens device and a digital camera using the same. Background technique [0002] Patent Document 1: Japanese Unexamined Patent Publication No. 2003-66309 (Abstract, image 3 , Figure 5 ) [0003] Conventionally, in the digital camera market, as the demand for miniaturization and thinning of digital cameras increases, it is necessary to incorporate a thin lens device in the digital camera. [0004] As one method of reducing the thickness of a lens device, a lens device using a bending optical system has been proposed. In order to achieve such a reduction in thickness, the present applicant proposed a lens device in which units forming the lens device are arranged horizontally. (For example, refer to Patent Document 1.) [0005] However, in recent years, there has been an increasing demand for miniaturization and thinning of digital cameras, and it is necessary to achieve a thinner effect than the lens device pr...

Claims

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Application Information

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IPC IPC(8): G02B7/02G02B7/04G02B7/08G02B7/10G03B17/17H04N5/225H04N101/00
Inventor 池町大白鸟和利佐藤有亮
Owner OLYMPUS CORP
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