JP6478928B2 - レンズ装置及びそれを有する撮像装置 - Google Patents
レンズ装置及びそれを有する撮像装置 Download PDFInfo
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- JP6478928B2 JP6478928B2 JP2016007071A JP2016007071A JP6478928B2 JP 6478928 B2 JP6478928 B2 JP 6478928B2 JP 2016007071 A JP2016007071 A JP 2016007071A JP 2016007071 A JP2016007071 A JP 2016007071A JP 6478928 B2 JP6478928 B2 JP 6478928B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0018—Redirecting means on the surface of the light guide
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/06—Special arrangements of screening, diffusing, or reflecting devices, e.g. in studio
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/24—Optical objectives specially designed for the purposes specified below for reproducing or copying at short object distances
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
- G02B6/0021—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces for housing at least a part of the light source, e.g. by forming holes or recesses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0051—Diffusing sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
-
- 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
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/105—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens with movable lens means specially adapted for focusing at close distances
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
-
- 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
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
- G03B15/02—Illuminating scene
- G03B15/03—Combinations of cameras with lighting apparatus; Flash units
- G03B15/05—Combinations of cameras with electronic flash apparatus; Electronic flash units
-
- 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
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
-
- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0514—Separate unit
- G03B2215/0517—Housing
- G03B2215/0539—Ringflash
-
- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0564—Combinations of cameras with electronic flash units characterised by the type of light source
- G03B2215/0575—Ring shaped lighting arrangements
-
- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0582—Reflectors
- G03B2215/0585—Movable reflectors, e.g. change of illumination angle or direction
-
- 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
- G03B2215/00—Special procedures for taking photographs; Apparatus therefor
- G03B2215/05—Combinations of cameras with electronic flash units
- G03B2215/0589—Diffusors, filters or refraction means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lenses (AREA)
- Stroboscope Apparatuses (AREA)
- Studio Devices (AREA)
Description
0.2<OD/DB<1.0
0.2<DL/ID<1.0
0.65<DSP/TD<0.95なる条件式を満足することを特徴とする。
0.2<OD/DB<1.0 ・・・(1)
0.2<DL/ID<1.0 ・・・(2)
なる条件式を満足する。
0.3<OD/DB<0.9 ・・・(1a)
0.3<DL/ID<0.9 ・・・(2a)
0.4<OD/DB<0.8 ・・・(1b)
0.4<DL/ID<0.8 ・・・(2b)
0.65<DSP/TD<0.95 ・・・(4)
0.3<ID/WD<6.0 ・・・(5)
0.5≦|β| ・・・(6)
0.70<DSP/TD<0.93 ・・・(4a)
0.35<ID/WD<5.50 ・・・(5a)
0.7≦−β ・・・(6a)
0.30<BF/f<1.60 ・・・(3b)
0.75<DSP/TD<0.90 ・・・(4b)
0.4<ID/WD<5.0 ・・・(5b)
1.0≦−β ・・・(6b)
但し、xは光軸方向の基準面からの変位量、hは光軸に対して垂直な方向の高さ、Rはベースとなる2次曲面の半径、kは円錐定数、B、C、D、Eはそれぞれ4次、6次、8次、10次の非球面係数である。尚、「e−Z」の表示は「10−Z」を意味する。又前述の各条件式と実施例における各パラメータの数値との関係を表1に示す。
単位 mm
面データ
面番号 r d nd νd
1 -197.665 0.50 1.58313 59.5
2* 8.009 3.33
3(FC) ∞ -0.30
4 34.792 1.84 1.80518 25.4
5 -34.792 2.55
6 -39.399 1.22 1.77250 49.6
7 -24.094 1.67
8 -23.519 0.60 1.95375 32.3
9 82.440 0.95
10(FP) ∞ 1.90
11(絞り)(SP)∞ 0.61
12 16.940 5.23 1.51823 58.9
13 -16.940 2.75
14 -12.932 0.65 1.90366 31.3
15 -143.739 0.15
16 26.215 4.23 1.49700 81.5
17 -18.292 0.15
18* 64.432 2.97 1.58313 59.5
19* -17.234 0.29
20(FC) ∞ (可変)
21 51.516 1.22 1.95906 17.5
22 332.148 0.45 1.83481 42.7
23 16.990 42.22
像面 ∞
第2面
K = 0.00000e+000 B=-1.76791e-004 C=-2.65273e-006 D= 7.81442e-009 E=-6.68614e-010
第18面
K = 0.00000e+000 B =-7.23379e-005 C=-1.23764e-008 D=-2.58452e-009 E= 1.02225e-010
第19面
K = 0.00000e+000 B = 6.10927e-005 C= 1.30720e-007 D=-2.33941e-009 E= 1.12506e-010
各種データ
焦点距離 27.74
Fナンバー 3.61
半画角(度) 26.21
像高 13.66
無限遠 (撮像倍率)×1.00
d20 0.94 8.75
50 カメラ本体 51 撮像光学系
Claims (12)
- 開口絞りを含む撮像光学系と、該撮像光学系を保持する保持枠と、該保持枠に対して設けられ、光を照射する照明装置とを有するレンズ装置であって、
前記照明装置は、光源と、物体側に光出射面を有する略環状の導光部材とを有し、
前記導光部材は、内面反射させることにより前記光源からの光を前記光出射面に伝搬し、
前記光源は、前記光出射面の法線方向が前記導光部材の接線方向となるように配置され、
前記保持枠の外径をDB、前記導光部材の外径をOD、前記導光部材の内径をID、前記撮像光学系の最も物体側に配置されたレンズの外径をDL、前記撮像光学系のレンズ全長をTD、前記開口絞りから像面までの距離をDSPとするとき、
0.2<OD/DB<1.0
0.2<DL/ID<1.0
0.65<DSP/TD<0.95
なる条件式を満足することを特徴とするレンズ装置。 - 無限遠物体に合焦したときにおける前記撮像光学系のバックフォーカスをBF、前記撮像光学系の焦点距離をfとするとき、
0.20<BF/f<1.80
なる条件式を満足することを特徴とする請求項1に記載のレンズ装置。 - 前記導光部材の光出射面の物体側に、前記光出射面より出射した光を拡散させる拡散板を有することを特徴とする請求項1又は2に記載のレンズ装置。
- 前記撮像光学系が最至近距離の物体に合焦したときにおける前記導光部材から前記最至近距離の物体までの距離をWDとするとき、
0.3<ID/WD<6.0
なる条件式を満足することを特徴とする請求項1乃至3のいずれか1項に記載のレンズ装置。 - 最至近距離の物体に合焦したときにおける前記撮像光学系の結像倍率をβとするとき、
0.5≦|β|
なる条件式を満足することを特徴とする請求項1乃至4のいずれか1項に記載のレンズ装置。 - 前記照明装置は、前記保持枠に対して取り外し可能であることを特徴とする請求項1乃至5のいずれか1項に記載のレンズ装置。
- 前記導光部材は、前記光出射面と反対側の面に配置された、前記導光部材に入射した光を反射させる反射手段を有することを特徴とする請求項1乃至6のいずれか1項に記載のレンズ装置。
- 前記導光部材の形状は、環状、または、円弧形状であることを特徴とする請求項1乃至7のいずれか1項に記載のレンズ装置。
- 前記導光部材の形状は円弧形状であり、前記光源は前記導光部材の端部に配置されていることを特徴とする請求項8に記載のレンズ装置。
- 前記光源は第1の光源であり、さらに前記第1の光源とは異なる位置に配置された第2の光源を有し、
前記第1の光源と前記第2の光源のそれぞれからの光は、前記導光部材の周方向において同じ回転方向に伝搬されることを特徴とする請求項1乃至9のいずれか1項に記載のレンズ装置。 - 前記導光部材は円弧形状の第1の環状片と円弧形状の第2の環状片を有し、前記1の光源が前記第1の環状片の端部に、前記第2の光源が前記第2の環状片の端部に配置されていることを特徴とする請求項10に記載のレンズ装置。
- 請求項1乃至11のいずれか1項に記載のレンズ装置と、該レンズ装置によって形成される像を受光する撮像素子を有することを特徴とする撮像装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2016007071A JP6478928B2 (ja) | 2016-01-18 | 2016-01-18 | レンズ装置及びそれを有する撮像装置 |
US15/392,148 US9869923B2 (en) | 2016-01-18 | 2016-12-28 | Lens apparatus and image pickup apparatus including the same |
CN201710023074.0A CN106980151B (zh) | 2016-01-18 | 2017-01-13 | 透镜装置和包括透镜装置的图像拾取装置 |
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Application Number | Priority Date | Filing Date | Title |
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JP2016007071A JP6478928B2 (ja) | 2016-01-18 | 2016-01-18 | レンズ装置及びそれを有する撮像装置 |
Publications (3)
Publication Number | Publication Date |
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JP2017129619A JP2017129619A (ja) | 2017-07-27 |
JP2017129619A5 JP2017129619A5 (ja) | 2018-09-06 |
JP6478928B2 true JP6478928B2 (ja) | 2019-03-06 |
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US (1) | US9869923B2 (ja) |
JP (1) | JP6478928B2 (ja) |
CN (1) | CN106980151B (ja) |
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JP6478900B2 (ja) * | 2015-11-09 | 2019-03-06 | キヤノン株式会社 | レンズ装置及びそれを有する撮像装置 |
JP6478928B2 (ja) * | 2016-01-18 | 2019-03-06 | キヤノン株式会社 | レンズ装置及びそれを有する撮像装置 |
Family Cites Families (12)
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US2682603A (en) * | 1952-08-09 | 1954-06-29 | Dine Lester | Portable photographic light unit |
US3474242A (en) * | 1966-10-14 | 1969-10-21 | David W Forrant | Photographic ring light |
JP3105583U (ja) * | 2004-05-31 | 2004-11-18 | 光永 張 | 影無しカメラ |
US20060093344A1 (en) * | 2004-11-01 | 2006-05-04 | Eastman Kodak Company | Ring flash for camera |
JP2006337422A (ja) | 2005-05-31 | 2006-12-14 | Sigma Corp | マクロ付き撮影レンズの照明装置 |
JP4844680B2 (ja) | 2010-05-25 | 2011-12-28 | パナソニック株式会社 | 照明装置及びカメラ |
US8953182B2 (en) * | 2011-02-14 | 2015-02-10 | Csr Imaging Us, Lp | Font emulation in embedded systems |
JP6136117B2 (ja) * | 2012-05-29 | 2017-05-31 | 富士通株式会社 | 撮像装置及び電子装置 |
JP2014013350A (ja) * | 2012-07-05 | 2014-01-23 | Canon Inc | 照明装置 |
JP6132564B2 (ja) * | 2013-01-25 | 2017-05-24 | オリンパス株式会社 | リング照明アダプター |
JP6478900B2 (ja) * | 2015-11-09 | 2019-03-06 | キヤノン株式会社 | レンズ装置及びそれを有する撮像装置 |
JP6478928B2 (ja) * | 2016-01-18 | 2019-03-06 | キヤノン株式会社 | レンズ装置及びそれを有する撮像装置 |
-
2016
- 2016-01-18 JP JP2016007071A patent/JP6478928B2/ja active Active
- 2016-12-28 US US15/392,148 patent/US9869923B2/en active Active
-
2017
- 2017-01-13 CN CN201710023074.0A patent/CN106980151B/zh active Active
Also Published As
Publication number | Publication date |
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CN106980151B (zh) | 2020-03-03 |
US9869923B2 (en) | 2018-01-16 |
JP2017129619A (ja) | 2017-07-27 |
CN106980151A (zh) | 2017-07-25 |
US20170205684A1 (en) | 2017-07-20 |
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