JPH03119837U - - Google Patents
Info
- Publication number
- JPH03119837U JPH03119837U JP2906990U JP2906990U JPH03119837U JP H03119837 U JPH03119837 U JP H03119837U JP 2906990 U JP2906990 U JP 2906990U JP 2906990 U JP2906990 U JP 2906990U JP H03119837 U JPH03119837 U JP H03119837U
- Authority
- JP
- Japan
- Prior art keywords
- lens barrel
- variable focus
- frame members
- focus lens
- lens
- 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
Links
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 8
- 230000000903 blocking effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005375 photometry Methods 0.000 description 1
Landscapes
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
Description
第１図は、本考案の可変焦点式レンズの鏡胴に
係る一実施例の分解斜視構成図、第２図は、第１
図の状態に在る可変焦点式レンズの鏡胴の上方か
ら見た場合の構成図、第３図は、第１図の可変焦
点式レンズの鏡胴における後群枠の基部付近の一
変形例を示す部分断面図、第４図は、ＷＩＤＥポ
ジシヨンスイツチおよびＴＥＬＥポジシヨンスイ
ツチを構成するＷＩＤＥパターン・ＴＥＬＥパタ
ーン・グランドパターンの関係配置図、第５図は
、可変焦点式レンズの鏡胴におけるＷＩＤＥ−Ｔ
ＥＬＥ切換え制御説明図、第６図は、第１図に示
す可変焦点式レンズの鏡胴の制御部を示すブロツ
ク図、第７図は、それぞれの撮影モードにおける
焦点合せ動作を示す動作フロー図である。第８図
および第９図は、副レンズ群を撮影光路に対して
挿脱することにより焦点距離を変更する形式の従
来の可変焦点式レンズの鏡胴をそれぞれ示す概略
断面構成図で、このうち、第８図は、レンズが短
焦点距離の状態に在る場合を、第９図は、長焦点
距離の状態に在る場合をそれぞれ示すものであり
、第１０図および第１１図は、撮影光軸に対する
主レンズ群と副レンズ群との倒れ状態を説明する
ための説明図で、第１０図は、両レンズ群が互い
に逆方向に倒れた状態に在る場合を、第１１図は
ともに同一方向に倒れた状態に在る場合を、それ
ぞれ示し、第１２図ａは、コギングによるモータ
の自走回転トルクの変化図、第１２図ｂは、自走
回転トルクの変化に伴うモータの最終停止位置を
示す状態図、第１２図ｃおよびｄは、自走回転ト
ルクの変化に伴う本考案のＤＣモータの最終停止
位置を示す状態図である。
１……可変焦点式レンズの鏡胴、２……レンズ
鏡枠、ＬＭ……主レンズ群、ＬＳ……副レンズ群
、Ｏ……撮影光路、３……露光開口、４……共通
ポール、５……回転阻止用ポール、６……駆動リ
ードねじ、７……カム板部材、７ａ……押下げ作
用面、７ｂ……保持作用面、１０……前群枠、１
１……枠本体、１１ａ……切欠き部、１１ｂ……
突起、１２……補助枠部、１３ａ，１３ｂ……ダ
ブルステー、１４……Ｔ−Ｎナツト、１５……駆
動リードナツト、１６……摺動ブラシ、２０……
後群枠、２１……先端部、２１ａ……位置決め突
起、２２……基部、２２ａ，２２ｃ……Ｔ−Ｎナ
ツト、２３……ステー、２４……係脱ピン、２５
……捻ればね、２６……押動突起、２７……連結
スプリング、２８……調整ねじ、２９……圧縮ば
ね、３１……従動ギア、３２……ロータリー・エ
ンコーダ、３３……ＤＣモータ、３４……駆動ギ
ア、３５……フオートインタラプタ、３６……パ
ルス信号発生手段、４０……ポジシヨン台、４１
……ポジシヨンスイツチ基板、４２……ＷＩＤＥ
パターン、４３……ＴＥＬＥパターン、ＳＷＷ…
…ＷＩＤＥポジシヨンスイツチ、ＳＷＴ……ＴＥ
ＬＥポジシヨンスイツチ、４４……グランドパタ
ーン、４５……支持板、５０……制御部、５１…
…Ｔ−Ｗ切換え操作釦、５２……シヤツタレリー
ズ釦、５３……ＡＦ用ＩＣ、５４……モータ駆動
ＩＣ、５５……マイコン、５６……測光スイツチ
、Ｗ０……ＷＩＤＥ基準位置、Ｔ０……ＴＥＬＥ
基準位置、Ｗ１……ＷＩＤＥ最至近撮影位置、Ｗ
２……ＷＩＤＥ無限遠撮影位置、Ｔ１……ＴＥＬ
Ｅ最至近撮影位置、Ｔ２……ＴＥＬＥ無限遠撮影
位置。
FIG. 1 is an exploded perspective configuration diagram of one embodiment of the lens barrel of the variable focus lens of the present invention, and FIG.
A configuration diagram when viewed from above of the lens barrel of the variable focus lens in the state shown in the figure. Figure 3 is a modified example of the vicinity of the base of the rear group frame in the lens barrel of the variable focus lens shown in Figure 1. FIG. 4 is a diagram showing the relationship between the WIDE pattern, TELE pattern, and ground pattern that make up the WIDE position switch and TELE position switch. FIG. -T
FIG. 6 is a block diagram showing the control section of the lens barrel of the variable focus lens shown in FIG. 1, and FIG. 7 is an operation flow diagram showing the focusing operation in each shooting mode. be. FIGS. 8 and 9 are schematic cross-sectional configuration diagrams respectively showing the lens barrel of a conventional variable focus lens in which the focal length is changed by inserting and removing a sub-lens group into the photographing optical path. , FIG. 8 shows the case where the lens is in a short focal length state, and FIG. 9 shows the case in which the lens is in a long focal length state. These are explanatory diagrams for explaining the tilted state of the main lens group and the sub lens group with respect to the optical axis. FIG. 10 shows the case where both lens groups are tilted in opposite directions, and FIG. 11 shows the case where both lens groups are tilted in opposite directions. Fig. 12a shows the change in the motor's self-propelled rotational torque due to cogging, and Fig. 12b shows the final state of the motor due to the change in the free-propelled rotational torque. FIGS. 12c and 12d are state diagrams showing the final stop position of the DC motor of the present invention as the free running rotational torque changes. 1... Variable focus lens barrel, 2... Lens barrel, LM... Main lens group, LS... Sub-lens group, O... Shooting optical path, 3... Exposure aperture, 4... Common pole, 5...Rotation blocking pole, 6...Drive lead screw, 7...Cam plate member, 7a...Press-down action surface, 7b...Holding action surface, 10...Front group frame, 1
1... Frame body, 11a... Notch, 11b...
Projection, 12... Auxiliary frame portion, 13a, 13b... Double stay, 14... T-N nut, 15... Drive lead nut, 16... Sliding brush, 20...
Rear group frame, 21... Tip, 21a... Positioning protrusion, 22... Base, 22a, 22c... T-N nut, 23... Stay, 24... Engaging/disengaging pin, 25
...Twist, 26...Push projection, 27...Connection spring, 28...Adjustment screw, 29...Compression spring, 31...Followed gear, 32...Rotary encoder, 33...DC motor, 34 ...Drive gear, 35...Foot interrupter, 36...Pulse signal generating means, 40...Position stand, 41
...Position switch board, 42...WIDE
Pattern, 43...TELE pattern, SWW...
...WIDE position switch, SWT...TE
LE position switch, 44...Ground pattern, 45...Support plate, 50...Control unit, 51...
... T-W switching operation button, 52 ... Shutter release button, 53 ... AF IC, 54 ... Motor drive IC, 55 ... Microcomputer, 56 ... Photometry switch, W 0 ... WIDE reference position, T 0 ...TELE
Reference position, W 1 ... WIDE closest shooting position, W
2 ...WIDE infinity shooting position, T 1 ...TEL
E closest shooting position, T 2 ...TELE infinity shooting position.
Claims (1)
可変焦点式レンズの鏡胴において、任意の２群の
レンズ群をそれぞれ独立的に保持する２つの枠部
材の間に１つの付勢部材を介装し、該付勢部材の
付勢力により、前記２つの枠部材をそれぞれ光軸
に対して同一方向へ倒し得るように、前記付勢部
材の係止端部の位置を設定する如く構成して成る
ことを特徴とする可変焦点式レンズの鏡胴。 (2) 前記２つの枠部材は、前記光軸に対してそ
れぞれ可動的に構成され、前記枠部材の光軸に対
する同一方向への倒れは、前記枠部材の可動部の
ガタを吸収し得るように作用するものである請求
項１に記載の可変焦点式レンズの鏡胴。[Claims for Utility Model Registration] (1) In a variable focus lens barrel having at least two or more lens groups, between two frame members that independently hold any two lens groups. A biasing member is interposed in the locking end of the biasing member so that the biasing force of the biasing member can tilt the two frame members in the same direction with respect to the optical axis. A variable focus lens barrel characterized by being configured such that its position can be set. (2) The two frame members are configured to be movable with respect to the optical axis, and the tilting of the frame members in the same direction with respect to the optical axis can absorb the play of the movable part of the frame member. The variable focus lens barrel according to claim 1, which acts on the lens barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029069U JP2577532Y2 (en) | 1990-03-23 | 1990-03-23 | Variable focus lens barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990029069U JP2577532Y2 (en) | 1990-03-23 | 1990-03-23 | Variable focus lens barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03119837U true JPH03119837U (en) | 1991-12-10 |
| JP2577532Y2 JP2577532Y2 (en) | 1998-07-30 |
Family
ID=31531849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990029069U Expired - Lifetime JP2577532Y2 (en) | 1990-03-23 | 1990-03-23 | Variable focus lens barrel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2577532Y2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006259116A (en) * | 2005-03-16 | 2006-09-28 | Seiko Instruments Inc | Lens moving mechanism and camera module |
| JP2007010944A (en) * | 2005-06-30 | 2007-01-18 | Nidec Copal Corp | Lens drive device |
| JPWO2014188687A1 (en) * | 2013-05-21 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | Lens barrel |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918937A (en) * | 1982-11-25 | 1984-01-31 | Ricoh Co Ltd | Camera with variable focal length |
| JPS6343114A (en) * | 1986-08-09 | 1988-02-24 | Olympus Optical Co Ltd | Lens body structure capable of switching its focal distance |
| JPS6347865U (en) * | 1986-09-12 | 1988-03-31 | ||
| JPS63132911U (en) * | 1987-02-21 | 1988-08-31 | ||
| JPS63271307A (en) * | 1987-04-30 | 1988-11-09 | Canon Inc | Lens barrel of camera |
| JPH01133014A (en) * | 1987-11-18 | 1989-05-25 | Nikon Corp | Relative moving device for optical system of zoom lens |
-
1990
- 1990-03-23 JP JP1990029069U patent/JP2577532Y2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5918937A (en) * | 1982-11-25 | 1984-01-31 | Ricoh Co Ltd | Camera with variable focal length |
| JPS6343114A (en) * | 1986-08-09 | 1988-02-24 | Olympus Optical Co Ltd | Lens body structure capable of switching its focal distance |
| JPS6347865U (en) * | 1986-09-12 | 1988-03-31 | ||
| JPS63132911U (en) * | 1987-02-21 | 1988-08-31 | ||
| JPS63271307A (en) * | 1987-04-30 | 1988-11-09 | Canon Inc | Lens barrel of camera |
| JPH01133014A (en) * | 1987-11-18 | 1989-05-25 | Nikon Corp | Relative moving device for optical system of zoom lens |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006259116A (en) * | 2005-03-16 | 2006-09-28 | Seiko Instruments Inc | Lens moving mechanism and camera module |
| JP2007010944A (en) * | 2005-06-30 | 2007-01-18 | Nidec Copal Corp | Lens drive device |
| JP4652152B2 (en) * | 2005-06-30 | 2011-03-16 | 日本電産コパル株式会社 | Lens drive device |
| JPWO2014188687A1 (en) * | 2013-05-21 | 2017-02-23 | パナソニックＩｐマネジメント株式会社 | Lens barrel |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2577532Y2 (en) | 1998-07-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |