Lens, imaging device, digital camera, information terminal and image input device using the same

A lens and lens technology, applied in the direction of printing equipment, projection equipment, installation, etc., can solve problems such as hindering miniaturization, reducing space utilization efficiency, and complex structure.

Inactive Publication Date: 2012-07-18
RICOH KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

For this reason, the lens optical axis adjustment mechanism of this existing lens needs six first adjustment parts and second adjustment parts in total, like this, need to reserve six settings in the holding structure that constitutes with the fifth holding plate and the

Method used

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  • Lens, imaging device, digital camera, information terminal and image input device using the same
  • Lens, imaging device, digital camera, information terminal and image input device using the same
  • Lens, imaging device, digital camera, information terminal and image input device using the same

Examples

Experimental program
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Embodiment Construction

[0042] Embodiments of the lens of the present invention are described below with reference to the drawings.

[0043] first reference Figure 1 to Figure 9 An example of the structure of the lens 10 according to the present invention will be described.

[0044] Such as figure 1 As shown, the optical device including the lens 10 has the following components: a first group of lenses 11, a second group of lenses 12, a third group of lenses 13, a fourth group of lenses 14, a fifth group of lenses 15, a shutter / aperture unit 16, Solid-state imaging element 17, low-pass filter 18, straight tube 21, second lens group holding frame 22, third lens group holding frame 23, fourth lens group holding frame 24, fifth lens group holding frame 25, fifth lens The supporting frame 26 , the fixed cylinder 31 , the first rotating cylinder 32 , the second rotating cylinder 33 , the straight spacer 34 , the focusing motor 51 , and the lens optical axis adjusting mechanism 60 .

[0045] In this op...

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Abstract

The present invention relates to a lens, an imaging device, a digital camera, an information terminal and an image input device using the same. The lens (10) comprises a lens holding frame (25) for a lens group (15) consisting of one or more lens, and a holding frame bracket (26) for holding the lens from the inner side thereof. An optical axis (0A) surrounding the lens group (15) and arranged on the bracket (26) is provided with at least three optical axis adjusting perforations (26b) extending along the optical axis (0A), wherein eccentric adjusting members (62,63,64) and an inclination adjusting member (61) are coaxially mounted.

Description

technical field [0001] The invention relates to a lens for holding a lens group, in particular to a lens for facilitating the adjustment of the axis of the lens group. The present invention further relates to a photography device, a digital camera, an information terminal and an image input device using the lens. Background technique [0002] In recent years, there has been a demand not only for miniaturization but also for further improvement in image quality of photographed images in digital and other photographic devices and cameras. The improvement of photographic image quality requires high-precision axis adjustment of the lens group inside the lens, that is, eccentric adjustment and tilt adjustment. The so-called eccentric adjustment refers to the adjustment of the position of the lens group in the direction perpendicular to the photographic optical axis of the optical system. , so that the position is located at a position determined according to the design of the op...

Claims

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Application Information

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IPC IPC(8): G02B7/02G03B5/00G03B17/04
Inventor 大屋贵弘
Owner RICOH KK
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