JP2014010257A - エンコーダ、レンズ装置、および、カメラ - Google Patents
エンコーダ、レンズ装置、および、カメラ Download PDFInfo
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- JP2014010257A JP2014010257A JP2012146237A JP2012146237A JP2014010257A JP 2014010257 A JP2014010257 A JP 2014010257A JP 2012146237 A JP2012146237 A JP 2012146237A JP 2012146237 A JP2012146237 A JP 2012146237A JP 2014010257 A JP2014010257 A JP 2014010257A
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- 238000001514 detection method Methods 0.000 claims abstract description 29
- 230000002093 peripheral effect Effects 0.000 claims abstract description 16
- 230000003287 optical effect Effects 0.000 claims description 48
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 description 28
- 239000011295 pitch Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008602 contraction Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34707—Scales; Discs, e.g. fixation, fabrication, compensation
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/08—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted to co-operate with a remote control mechanism
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
- G01D5/347—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
- G01D5/34746—Linear encoders
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B19/00—Cameras
- G03B19/02—Still-picture cameras
- G03B19/12—Reflex cameras with single objective and a movable reflector or a partly-transmitting mirror
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/67—Focus control based on electronic image sensor signals
- H04N23/672—Focus control based on electronic image sensor signals based on the phase difference signals
Abstract
【解決手段】エンコーダは、円周方向に回転可能な円筒部と、円筒部に取り付けられたスケール部と、スケール部を用いて円筒部の位置を検出する検出部とを備えるエンコーダであって、円筒部は、スケール部を保持する固定保持部と、円筒部の円周方向に移動可能に構成され、スケール部を保持するスケール保持部と、スケール保持部を介してスケール部を固定保持部の側に向って付勢することによって、スケール部を円筒部の内周壁に取り付けるスケール付勢部とを有する。
【選択図】図1
Description
26b 固定突起部(固定保持部)
35 フィルムスケール(スケール部)
36 センサヘッド(検出部の構成要素)
37 センサホルダ(検出部の構成要素)
40 スケール保持板金(スケール保持部)
42 スケール付勢バネ(スケール付勢部)
44 センサフレキ(検出部の構成要素)
Claims (6)
- 円周方向に回転可能な円筒部と、
前記円筒部に取り付けられたスケール部と、
前記スケール部を用いて前記円筒部の位置を検出する検出部と、を備えるエンコーダであって、
前記円筒部は、
前記スケール部を保持する固定保持部と、
前記円筒部の前記円周方向に移動可能に構成され、前記スケール部を保持するスケール保持部と、
前記スケール保持部を介して前記スケール部を前記固定保持部の側に向って付勢することによって、前記スケール部を前記円筒部の内周壁に取り付けるスケール付勢部と、
を有する、ことを特徴とするエンコーダ。 - 前記スケール保持部は、
前記スケール部の保持状態において、前記円筒部の径方向への該スケール部の移動を規制する径方向規制部を有し、
前記径方向規制部による前記スケール部の規制を解除する解除位置に移動可能であることを特徴とする請求項1に記載のエンコーダ。 - 前記スケール保持部は、前記円周方向に形成された第1の溝部を有し、
前記円筒部は、前記円周方向に形成された第2の溝部を有し、
前記第1の溝部と前記第2の溝部との間には、該第1の溝部および該第2の溝部に沿って移動可能なボールが設けられていることを特徴とする請求項1または2に記載のエンコーダ。 - 前記スケール付勢部は、コイルバネであることを特徴とする請求項1乃至3のいずれか1項に記載のエンコーダ。
- 光軸方向に移動可能なレンズと、
光軸回りに回転することで前記レンズを前記光軸方向に移動させる円筒部と、
前記円筒部に取り付けられたスケール部と、
前記スケール部を用いて前記円筒部の位置を検出する検出部と、を備えるレンズ装置であって、
前記円筒部は、
前記スケール部を保持する固定保持部と、
前記円筒部の前記光軸回りに移動可能に構成され、前記スケール部を保持するスケール保持部と、
前記スケール保持部を介して前記スケール部を前記固定保持部の側に向って付勢することによって、前記スケール部を前記円筒部の内周壁に取り付けるスケール付勢部と、
を有する、ことを特徴とするレンズ装置。 - 光軸方向に移動可能なレンズと、
前記レンズからの被写体像の光電変換を行う撮像素子と、
光軸回りに回転することで前記レンズを前記光軸方向に移動させる円筒部と、
前記円筒部に取り付けられたスケール部と、
前記スケール部を用いて前記円筒部の位置を検出する検出部と、を備えるカメラであって、
前記円筒部は、
前記スケール部を保持する固定保持部と、
前記円筒部の前記光軸回りに移動可能に構成され、前記スケール部を保持するスケール保持部と、
前記スケール保持部を介して前記スケール部を前記固定保持部の側に向って付勢することによって、前記スケール部を前記円筒部の内周壁に取り付けるスケール付勢部と、
を有する、ことを特徴とするカメラ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012146237A JP6016479B2 (ja) | 2012-06-29 | 2012-06-29 | エンコーダ、レンズ装置、および、カメラ |
CN201310254665.0A CN103512597B (zh) | 2012-06-29 | 2013-06-25 | 编码器、镜头装置和照相机 |
US13/930,796 US9116020B2 (en) | 2012-06-29 | 2013-06-28 | Encoder, lens apparatus, and camera capable of detecting position of object |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2012146237A JP6016479B2 (ja) | 2012-06-29 | 2012-06-29 | エンコーダ、レンズ装置、および、カメラ |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2014010257A true JP2014010257A (ja) | 2014-01-20 |
JP6016479B2 JP6016479B2 (ja) | 2016-10-26 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2012146237A Expired - Fee Related JP6016479B2 (ja) | 2012-06-29 | 2012-06-29 | エンコーダ、レンズ装置、および、カメラ |
Country Status (3)
Country | Link |
---|---|
US (1) | US9116020B2 (ja) |
JP (1) | JP6016479B2 (ja) |
CN (1) | CN103512597B (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5752221B2 (ja) * | 2013-12-19 | 2015-07-22 | ファナック株式会社 | 弾性構造部を備えた固定スリットを有する光学式エンコーダ |
JP6584252B2 (ja) * | 2015-09-14 | 2019-10-02 | キヤノン株式会社 | 電子機器および撮像装置 |
WO2018051645A1 (ja) * | 2016-09-13 | 2018-03-22 | ソニー株式会社 | レンズ装置 |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07120209A (ja) * | 1993-10-25 | 1995-05-12 | Olympus Optical Co Ltd | 位置検出機構 |
JPH10206103A (ja) * | 1997-01-17 | 1998-08-07 | Hitachi Metals Ltd | 寸法測定装置 |
JP2000289281A (ja) * | 1999-04-08 | 2000-10-17 | Seiko Epson Corp | リニアエンコーダ用スケールの取付け構造 |
JP2003106833A (ja) * | 2001-09-28 | 2003-04-09 | Kawaguchiko Seimitsu Co Ltd | 測長機 |
US20050263687A1 (en) * | 2004-05-28 | 2005-12-01 | Nokia Corporation | Optoelectronic position determination system |
JP2007047652A (ja) * | 2005-08-12 | 2007-02-22 | Canon Inc | 光学機器 |
JP2011099869A (ja) * | 2011-01-17 | 2011-05-19 | Canon Inc | 光学式エンコーダ |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3221079B2 (ja) | 1992-06-30 | 2001-10-22 | キヤノン株式会社 | エンコーダ |
JPH08201020A (ja) | 1995-01-23 | 1996-08-09 | Nikon Corp | 測定機の移動量読み取り装置 |
JP4208483B2 (ja) * | 2002-05-21 | 2009-01-14 | キヤノン株式会社 | 光学式エンコーダ |
US6995926B2 (en) * | 2003-09-17 | 2006-02-07 | Olympus Corporation | Lens barrel and lens barrel system |
JP4724496B2 (ja) * | 2005-08-29 | 2011-07-13 | キヤノン株式会社 | 光学式エンコーダ |
JP5574696B2 (ja) * | 2009-12-21 | 2014-08-20 | キヤノン株式会社 | レンズ鏡筒 |
DE202011005539U1 (de) * | 2011-04-26 | 2011-08-08 | Asm Automation Sensorik Messtechnik Gmbh | Mess-Ring mit Maßband |
US9052569B2 (en) * | 2011-06-23 | 2015-06-09 | Olympus Imaging Corp. | Optical instrument, and control method for optical instrument |
JP2013007906A (ja) * | 2011-06-24 | 2013-01-10 | Olympus Imaging Corp | レンズ鏡筒及びカメラシステム |
DE102011121021B4 (de) * | 2011-12-13 | 2022-12-01 | Arnold & Richter Cine Technik Gmbh & Co. Betriebs Kg | Bedieneinheit |
-
2012
- 2012-06-29 JP JP2012146237A patent/JP6016479B2/ja not_active Expired - Fee Related
-
2013
- 2013-06-25 CN CN201310254665.0A patent/CN103512597B/zh active Active
- 2013-06-28 US US13/930,796 patent/US9116020B2/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07120209A (ja) * | 1993-10-25 | 1995-05-12 | Olympus Optical Co Ltd | 位置検出機構 |
JPH10206103A (ja) * | 1997-01-17 | 1998-08-07 | Hitachi Metals Ltd | 寸法測定装置 |
JP2000289281A (ja) * | 1999-04-08 | 2000-10-17 | Seiko Epson Corp | リニアエンコーダ用スケールの取付け構造 |
JP2003106833A (ja) * | 2001-09-28 | 2003-04-09 | Kawaguchiko Seimitsu Co Ltd | 測長機 |
US20050263687A1 (en) * | 2004-05-28 | 2005-12-01 | Nokia Corporation | Optoelectronic position determination system |
JP2007047652A (ja) * | 2005-08-12 | 2007-02-22 | Canon Inc | 光学機器 |
JP2011099869A (ja) * | 2011-01-17 | 2011-05-19 | Canon Inc | 光学式エンコーダ |
Also Published As
Publication number | Publication date |
---|---|
CN103512597A (zh) | 2014-01-15 |
JP6016479B2 (ja) | 2016-10-26 |
CN103512597B (zh) | 2016-05-11 |
US20140002717A1 (en) | 2014-01-02 |
US9116020B2 (en) | 2015-08-25 |
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