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Plastic fiber and the preparing method thereof

A technology of optical elements and retraction mechanisms, applied in optical elements, optics, cameras, etc., can solve the problems of increasing the size of photographic lenses, undesirable production costs, and running counter to the miniaturization of photographic lenses

Inactive Publication Date: 2004-03-31
HOYA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, incorporating such a preventive structure independent of other elements of the retractable photographic lens in the retractable photographic lens generally increases the size of the photographic lens, which runs counter to the miniaturization of the photographic lens and is not desirable in terms of production cost. hopefully

Method used

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  • Plastic fiber and the preparing method thereof
  • Plastic fiber and the preparing method thereof
  • Plastic fiber and the preparing method thereof

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0198] In some drawings, in order to make the description clearer, different widths and / or different types of lines are used to represent the contours of different elements. In addition, in some cross-sectional views, in order to make the description clearer, although some elements are arranged at different peripheral positions, they are shown on the same common plane.

[0199] In FIG. 22, the reference numerals of some elements of this embodiment of a zoom lens (zoom lens barrel) 71 are appended with suffixes "(S)", "(L)", "(R)", and "(RL)" (See Figure 5 to Picture 10 ), which respectively mean: the element is fixed; the element is alone along the lens barrel axis Z0 (see Picture 9 with 10 ) Linear movement, but not rotating around the lens barrel axis Z0; the element rotates around the lens barrel axis Z0, but does not move along the lens barrel axis Z0; and the element alone moves along the lens barrel axis Z0 while rotating around the lens barrel axis Z0. In addition, in FIG...

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PUM

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Abstract

A retractable lens includes a linearly movable ring, a retractable holder, a holding device, a retracting device, and a flexible PWB configured to connect an electronic component supported inside the linearly movable ring, with an electronic circuit positioned outside the linearly movable ring. The retractable holder is separate from the flexible PWB when the retractable holder is held by the holding device in an operational position in which the retractable optical element is on the optical axis. The retractable holder presses the flexible PWB in a radial direction of the linearly movable ring from an inside to an outside of the linearly movable ring and supports the flexible PWB when the retractable holder is moved to a radially retracted position by the retracting device such that the retractable optical element retracts to the position that deviates from a photographing optical axis.

Description

Technical field [0001] The present invention relates to a photographic (imaging) lens (lens barrel), in which when the photographic lens is moved from an operating state to a non-operating (completely retracted) state, a part of a plurality of optical elements constituting a photographic optical system is retracted to the photographic optical system. A position where the photographic optical axis of the optical system deviates. Background technique [0002] The miniaturization of lens barrels mounted in optical devices such as cameras has been continuously increasing demand. In particular, there is a greater need for further miniaturization of the retractable photographic lens, especially its length in the non-operating state. In order to meet these needs, the inventor of the present invention has proposed a retractable photographic lens disclosed in Chinese Patent Application No. 03106208.3, in which one optical element of a photographic optical system is retracted to deviate fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/00G02B7/02G02B7/08G02B7/10G02B15/14
CPCG02B7/102G02B7/022G02B15/14G02B7/08G02B7/026G02B15/143G02B7/00
Inventor 野村博
Owner HOYA CORP