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撮像装置および内視鏡
专利权人:
OLYMPUS CORP
发明人:
INAMURA MASARU,稲村 優
申请号:
JP2015243283
公开号:
JP2017111193A
申请日:
2015.12.14
申请国别(地区):
JP
年份:
2017
代理人:
摘要:
PROBLEM TO BE SOLVED: To provide an imaging device and endoscope that prevent an electric magnet coil driving a movement lens frame from having a high temperature due to heat generation of the electric magnet coil, and prevent the electric magnet coil from being upsized in a radial direction of the electric magnet coil, and can obtain a stable optical characteristic.SOLUTION: An imaging device 1 comprises: a movement frame 21 that is movably included along an imaging optical axis O in a stationary holding frame 12 holding a stationary lens 11, and holds a movement lens 22 at least two magnets 31 and 32 that are juxtaposed at a prescribed space distance at two portions along the imaging optical axis O of the movement frame 21 three or more than drive coils that are provided with three or more than drive coils wounded around the stationary holding frame 12, and generate drive force with respect to the at least two magnets 31 and 32 accompanied by energization to thereby generate proceeding and retreating drive force with respect to the movement frame 21 and a control unit 50 that controls so as to energize a current of a different direction to at least two drive coils of the three or more drive coils 33a and 33c.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2017,JPO&INPIT【課題】 移動レンズ枠を駆動する電磁コイルの発熱による高温化および電磁コイルの径方向の大型化を防止して安定した光学特性が得られる撮像装置および内視鏡の提供。【解決手段】 撮像装置1は、固定レンズ11を保持する固定保持枠12内で、撮影光軸Oに沿って進退自在に内包され、移動レンズ22を保持する移動枠21と、移動枠21の撮影光軸Oに沿った方向の2箇所に所定の離間距離を有して並設された少なくとも2つの磁石31,32と、固定保持枠12に巻回されて設けられ、通電に伴い少なくとも2つの磁石31,32に対する駆動力を発生して移動枠21に対して進退駆動力を発生させる3つ以上の駆動コイル33a~33cと、3つ以上の駆動コイル33a~33cのうち、少なくとも2つの駆動コイル33a~33cに異なる方向の電流を通電するように制御する制御部50と、を備える。【選択図】図2
来源网站:
中国工程科技知识中心
来源网址:
http://www.ckcest.cn/home/

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