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Optical positioning regulator of optical unit

A technology of optical units and adjustment devices, applied in the direction of optical elements, optics, focusing devices, etc.

Inactive Publication Date: 2006-04-26
RICOH IMAGING COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the optical unit must be adjusted for positional shifts due to changing operating conditions

Method used

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  • Optical positioning regulator of optical unit
  • Optical positioning regulator of optical unit
  • Optical positioning regulator of optical unit

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Experimental program
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Embodiment Construction

[0026] The invention will be described below with reference to the embodiments shown in the drawings.

[0027] Fig. 1 shows the internal structure of the binoculars with photographic function, wherein an optical position adjustment device according to an embodiment of the present invention is installed, and the portable device is the binoculars with photographic function. figure 2 It is a sectional view along the II-II line of Fig. 1, figure 2 In , some parts are omitted to simplify the drawings. In this embodiment, the binoculars have a housing 10 that is approximately box-shaped, including a main housing portion 10A and a movable housing portion 10B.

[0028] A pair of telephoto optical systems 12R and 12L are provided in the casing 10 . The telescopic optical systems 12R and 12L are symmetrical in structure and serve as the right telescopic optical system and the left telescopic optical system. The right telescopic optical system 12R is mounted in the main housing portio...

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Abstract

An optical position adjustment device for an optical unit includes a motion conversion mechanism for converting the rotational motion of a rotating wheel barrel into the linear motion of a lens barrel, and the optical position adjusting mechanism determines the position of the lens barrel relative to the rotating wheel barrel. The optical position adjustment device has a ring and a fixing piece. The ring is fitted in the lens barrel in such a way that the lens barrel is movable along its central axis. The ring cannot rotate relative to the lens barrel. A fastener is provided for securing the ring to the frame in such a manner that the ring is detachable from the frame.

Description

technical field [0001] The invention relates to an optical position adjustment device of an optical unit, by which the position of a lens barrel installed in a cylindrical part relative to the cylindrical part can be adjusted. Background technique [0002] In general, there is known an optical device equipped with an optical unit in which a lens barrel is moved along its central axis by rotating a cylindrical member so that an optical system fitted in the lens barrel performs a focusing operation. That is, due to the motion converting mechanism assembled between the cylindrical member and the lens barrel, the rotation of the cylindrical member is converted into the linear motion of the lens barrel along the central axis of the cylindrical member. Linear motion is the focusing motion of the optical system assembled in the lens barrel. In order to perform focusing movement correctly, it is necessary to set the position of the lens barrel at a predetermined correct position wi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/04G02B23/18G03B13/18G03B17/00G02B23/00G02B7/02G02B7/06
CPCG02B7/04G02B7/06G02B7/003
Inventor 蛭沼谦舩津刚治
Owner RICOH IMAGING COMPANY