JPH02111971U - - Google Patents

Info

Publication number
JPH02111971U
JPH02111971U JP1851389U JP1851389U JPH02111971U JP H02111971 U JPH02111971 U JP H02111971U JP 1851389 U JP1851389 U JP 1851389U JP 1851389 U JP1851389 U JP 1851389U JP H02111971 U JPH02111971 U JP H02111971U
Authority
JP
Japan
Prior art keywords
cam
back focus
adjusting device
focus adjusting
driven
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP1851389U
Other languages
Japanese (ja)
Other versions
JPH083103Y2 (en
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to JP1989018513U priority Critical patent/JPH083103Y2/en
Publication of JPH02111971U publication Critical patent/JPH02111971U/ja
Application granted granted Critical
Publication of JPH083103Y2 publication Critical patent/JPH083103Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図および第２図は、この考案の一実施例を
示す概略側面図および平面図、第３図は従来のバ
ツクフオーカス調整装置の概略を示す側面図であ
る。 図中、１は対物レンズ、２は固体撮像素子、３
は案内ロツド、４は背面、５はシヤフト、６はね
じ部、７は支持部材、８はドライバー穴、９は操
作ノブ、１０は歯車、１１はギヤー、１２は偏心
カム、１３はカム従動部材、１４は作動桿、１５
はコイルバネである。 1 and 2 are a schematic side view and a plan view showing an embodiment of this invention, and FIG. 3 is a side view schematically showing a conventional back focus adjusting device. In the figure, 1 is an objective lens, 2 is a solid-state image sensor, and 3
is a guide rod, 4 is a rear surface, 5 is a shaft, 6 is a threaded portion, 7 is a support member, 8 is a screwdriver hole, 9 is an operation knob, 10 is a gear, 11 is a gear, 12 is an eccentric cam, 13 is a cam driven member , 14 is an operating rod, 15
is a coil spring.

Claims (1)

【実用新案登録請求の範囲】 (1) 対物レンズのほぼ焦点位置に置かれた固体
撮像素子（ＣＣＤ）の位置を装置の外部から微調
整することによつて、そのバツクフオーカスを微
調整するバツクフオーカス調整装置において、 上記固体撮像素子を光軸に対して実質的に垂直
なまま上記光軸方向に平行移動させる平行移動手
段と、該平行移動手段に連結されたカム従動手段
と、該カム従動手段を駆動するカム手段と、該カ
ム手段を駆動する操作ノブとを備えていることを
特徴とするバツクフオーカス調整装置。 (2) 上記カム手段は歯車機構を介した上記操作
ノブの回動によつて駆動される請求項１記載のバ
ツクフオーカス調整装置。 (3) 上記カム手段は偏心カムである請求項１記
載のバツクフオーカス調整装置。 (4) 上記カム手段は円筒カムである請求項１記
載のバツクフオーカス調整装置。 (5) 上記平行移動手段をバネ付勢するためのバ
ネが設けられている請求項１記載のバツクフオー
カス調整装置。[Claims for Utility Model Registration] (1) Back focus adjustment in which the back focus is finely adjusted by finely adjusting the position of a solid-state image sensor (CCD) placed at approximately the focal position of the objective lens from outside the device. In the apparatus, a parallel moving means for moving the solid-state image sensor in parallel in the optical axis direction while remaining substantially perpendicular to the optical axis, a cam driven means connected to the parallel moving means, and a cam driven means. A back focus adjustment device comprising: a cam means for driving; and an operation knob for driving the cam means. (2) The back focus adjusting device according to claim 1, wherein the cam means is driven by rotation of the operating knob via a gear mechanism. (3) The back focus adjusting device according to claim 1, wherein said cam means is an eccentric cam. (4) The back focus adjusting device according to claim 1, wherein said cam means is a cylindrical cam. (5) The back focus adjusting device according to claim 1, further comprising a spring for biasing the parallel moving means.
JP1989018513U 1989-02-20 1989-02-20 Back focus adjustment device Expired - Lifetime JPH083103Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989018513U JPH083103Y2 (en) 1989-02-20 1989-02-20 Back focus adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989018513U JPH083103Y2 (en) 1989-02-20 1989-02-20 Back focus adjustment device

Publications (2)

Publication Number Publication Date
JPH02111971U true JPH02111971U (en) 1990-09-07
JPH083103Y2 JPH083103Y2 (en) 1996-01-29

Family

ID=31233231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989018513U Expired - Lifetime JPH083103Y2 (en) 1989-02-20 1989-02-20 Back focus adjustment device

Country Status (1)

Country Link
JP (1) JPH083103Y2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003098419A (en) * 2001-09-25 2003-04-03 Yoshida Dental Mfg Co Ltd Focus switching mechanism of oral camera
JP2008252325A (en) * 2007-03-29 2008-10-16 Hitachi Kokusai Electric Inc Flange back adjusting mechanism of television camera

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176776U (en) * 1981-04-30 1982-11-09
JPS62180336A (en) * 1986-02-05 1987-08-07 Canon Inc Focus adjusting device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57176776U (en) * 1981-04-30 1982-11-09
JPS62180336A (en) * 1986-02-05 1987-08-07 Canon Inc Focus adjusting device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003098419A (en) * 2001-09-25 2003-04-03 Yoshida Dental Mfg Co Ltd Focus switching mechanism of oral camera
JP2008252325A (en) * 2007-03-29 2008-10-16 Hitachi Kokusai Electric Inc Flange back adjusting mechanism of television camera

Also Published As

Publication number Publication date
JPH083103Y2 (en) 1996-01-29

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