JP4845502B2 - 光学系及びそれを有する光学機器 - Google Patents
光学系及びそれを有する光学機器 Download PDFInfo
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- JP4845502B2 JP4845502B2 JP2005361953A JP2005361953A JP4845502B2 JP 4845502 B2 JP4845502 B2 JP 4845502B2 JP 2005361953 A JP2005361953 A JP 2005361953A JP 2005361953 A JP2005361953 A JP 2005361953A JP 4845502 B2 JP4845502 B2 JP 4845502B2
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B13/00—Optical objectives specially designed for the purposes specified below
- G02B13/02—Telephoto objectives, i.e. systems of the type + - in which the distance from the front vertex to the image plane is less than the equivalent focal length
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/144—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only
- G02B15/1445—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being negative
- G02B15/144511—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having four groups only the first group being negative arranged -+-+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/145—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only
- G02B15/1451—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being positive
- G02B15/145121—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having five groups only the first group being positive arranged +-+-+
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B15/00—Optical objectives with means for varying the magnification
- G02B15/14—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective
- G02B15/146—Optical objectives with means for varying the magnification by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective having more than five groups
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/0025—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration
- G02B27/005—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations
- G02B27/0062—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for optical correction, e.g. distorsion, aberration for correction of secondary colour or higher-order chromatic aberrations by controlling the dispersion of a lens material, e.g. adapting the relative partial dispersion
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Lenses (AREA)
Description
−1.33×10−3×νd+6.7×10−1<θgF
なる条件を満足する固体材料で形成される少なくとも1つの第1屈折光学素子と、
−1.63×10−3×νd+6.2×10−1>θgF
なる条件を満足する固体材料で形成される少なくとも1つの第2屈折光学素子を有することを特徴としている。
νd=(Nd−1)/(NF−NC)
θgF=(Ng−NF)/(NF−NC)
で定義される。
−1.33×10−3×νd+6.7×10−1<θgF ‥‥‥(1)
なる条件を満足する固体材料で形成される1つ以上の第1屈折光学素子と、
−1.63×10−3×νd+6.2×10−1>θgF ‥‥‥(2)
なる条件を満足する固体材料で形成される1つ以上の第2屈折光学素子を有している。
−1.63×10−3×νd+5.0×10−1>θgF ‥‥‥(2a)
尚、固体材料に樹脂材料を用いるとき、成形型を用いて光重合成形または熱重合成形すると、量産する際、製造効率がよくなる。
以上のように、実施例1、2において第1、第2、第5レンズ群は、第1屈折光学素子または第2屈折光学素子を含んでいる。
以上のように、実施例3、4において第1、第2、第4レンズ群は、第1屈折光学素子または第2屈折光学素子を含んでいる。
数値実施例1
f= 28.90〜193.15 Fno=3.63 〜 5.88 2ω=73.6 〜 12.8
R 1 = 102.694 D 1 = 1.50 N 1 = 1.846660 ν 1 = 23.9
R 2 = 67.525 D 2 = 0.05 N 2 = 1.578566 ν 2 = 16.5
R 3 = 57.448 D 3 = 9.29 N 3 = 1.603112 ν 3 = 60.6
R 4 = -938.598 D 4 = 0.12
R 5 = 48.476 D 5 = 4.44 N 4 = 1.622992 ν 4 = 58.2
R 6 = 82.382 D 6 = 可変
* R 7 = 73.541 D 7 = 1.20 N 5 = 1.834807 ν 5 = 42.7
R 8 = 13.885 D 8 = 5.65
R 9 = -33.988 D 9 = 0.60 N 6 = 1.578566 ν 6 = 16.5
R10 = -24.239 D10 = 1.00 N 7 = 1.834807 ν 7 = 42.7
R11 = 52.693 D11 = 0.12
R12 = 30.334 D12 = 4.52 N 8 = 1.755199 ν 8 = 27.5
R13 = -21.950 D13 = 0.60
R14 = -17.654 D14 = 0.90 N 9 = 1.772499 ν 9 = 49.6
R15 = -69.021 D15 = 可変
R16 = 絞り D16 = 0.94
R17 = 43.224 D17 = 4.08 N10 = 1.487490 ν10 = 70.2
R18 = -30.236 D18 = 0.15
R19 = 26.744 D19 = 8.13 N11 = 1.487490 ν11 = 70.2
R20 = -21.083 D20 = 0.90 N12 = 1.805181 ν12 = 25.4
R21 = -63.759 D21 = 可変
R22 = -51.876 D22 = 4.69 N13 = 1.740769 ν13 = 27.8
R23 = -14.998 D23 = 0.90 N14 = 1.882997 ν14 = 40.8
R24 = 123.097 D24 = 可変
R25 = 85.239 D25 = 5.21 N15 = 1.583126 ν15 = 59.4
* R26 = -20.371 D26 = 8.80
R27 = -15.933 D27 = 1.50 N16 = 1.698947 ν16 = 30.1
R28 = -16.645 D28 = 1.01 N17 = 1.635550 ν17 = 22.7
R29 = -14.231 D29 = 1.50 N18 = 1.805181 ν18 = 25.4
R30 = -24.910
\焦点距離 28.90 80.81 193.15
可変間隔\
D 6 2.38 29.66 48.63
D15 19.64 8.93 1.39
D21 1.13 6.32 8.17
D24 7.85 2.66 0.81
非球面係数
7面 : A=0.00000e+00 B=3.02479e-06 C=1.16978e-08 D=-1.03310e-10
E=5.98212e-13 F=0.00000e+00
26面 : A=0.00000e+00 B=5.57442e-06 C=2.59073e-08 D=-2.75874e-10
E=1.02062e-12 F=0.00000e+00
数値実施例2
f= 28.90〜193.17 Fno=3.63 〜 5.88 2ω=73.6 〜 12.8
R 1 = 132.527 D 1 = 1.50 N 1 = 1.846660 ν 1 = 23.9
R 2 = 49.733 D 2 = 2.52 N 2 = 1.635550 ν 2 = 22.7
R 3 = 67.379 D 3 = 7.08 N 3 = 1.622992 ν 3 = 58.2
R 4 = 984.359 D 4 = 0.12
R 5 = 51.358 D 5 = 7.04 N 4 = 1.622992 ν 4 = 58.2
R 6 = 234.151 D 6 = 可変
* R 7 = 73.837 D 7 = 1.20 N 5 = 1.834807 ν 5 = 42.7
R 8 = 14.793 D 8 = 5.59
R 9 = -44.796 D 9 = 0.21 N 6 = 1.578566 ν 6 = 16.5
R10 = -37.512 D10 = 1.00 N 7 = 1.834807 ν 7 = 42.7
R11 = 45.257 D11 = 0.12
R12 = 27.772 D12 = 4.32 N 8 = 1.755199 ν 8 = 27.5
R13 = -30.460 D13 = 1.02
R14 = -19.218 D14 = 0.90 N 9 = 1.772499 ν 9 = 49.6
R15 = 101.774 D15 = 2.03 N10 = 1.784723 ν10 = 25.7
R16 = -93.904 D16 = 可変
R17 = 絞り D17 = 0.70
R18 = 34.666 D18 = 4.41 N11 = 1.518229 ν11 = 58.9
R19 = -28.082 D19 = 0.15
R20 = 37.367 D20 = 4.95 N12 = 1.517417 ν12 = 52.4
R21 = -20.919 D21 = 0.30 N 13 = 1.635550 ν13 = 22.7
R22 = -18.412 D22 = 0.90 N14 = 1.846660 ν14 = 23.9
R23 = -118.206 D23 = 可変
R24 = -39.813 D24 = 2.43 N15 = 1.728250 ν15 = 28.5
R25 = -18.948 D25 = 0.90 N16 = 1.882997 ν16 = 40.8
R26 = -97.865 D26 = 可変
R27 = 52.675 D27 = 6.09 N17 = 1.583126 ν17 = 59.4
* R28 = -20.674 D28 = 1.27
R29 = 315.706 D29 = 2.16 N18 = 1.487490 ν18 = 70.2
R30 = -126.226 D30 = 3.07
R31 = -21.208 D31 = 1.00 N19 = 1.834000 ν19 = 37.2
R32 = 284.744 D32 = 0.66 N20 = 1.635550 ν20 = 22.7
R33 = -127.140 D33 = 1.00 N21 = 1.487490 ν21 = 70.2
R34 = -1536.395
\焦点距離 28.90 80.32 193.17
可変間隔\
D 6 2.42 29.11 48.39
D16 19.53 9.12 1.56
D23 1.76 10.01 13.38
D26 12.22 3.97 0.60
非球面係数
7面 : A=0.00000e+00 B=2.67286e-06 C=1.84979e-08 D=-1.56477e-10
E=6.99280e-13 F=0.00000e+00
28面 : A=0.00000e+00 B=1.77385e-05 C=2.96988e-08 D=-1.06404e-10
E=3.66833e-13 F=0.00000e+00
数値実施例3
f= 24.70〜 67.92 Fno= 2.90 〜 2.90 2ω=82.4 〜 35.3
* R 1 = 164.900 D 1 = 2.50 N 1 = 1.772499 ν 1 = 49.6
R 2 = 32.229 D 2 = 12.62
R 3 = -187.833 D 3 = 2.30 N 2 = 1.772499 ν 2 = 49.6
R 4 = 77.226 D 4 = 0.15
R 5 = 58.470 D 5 = 5.16 N 3 = 1.805181 ν 3 = 25.4
R 6 = 259.048 D 6 = 0.05 N 4= 1.635550 ν 4 = 22.7
R 7 = 116.957 D 7 = 可変
R 8 = 117.293 D 8 = 1.90 N 5 = 1.846660 ν 5 = 23.8
R 9 = 42.078 D 9 = 0.34 N 6 = 1.635550 ν 6 = 22.7
R10 = 46.333 D10 = 6.98 N 7 = 1.696797 ν 7 = 55.5
R11 = -197.890 D11 = 0.15
R12 = 88.758 D12 = 4.09 N 8 = 1.834807 ν 8 = 42.7
R13 = -247.127 D13 = 0.15
R14 = 45.684 D14 = 4.82 N 9 = 1.696797 ν 9 = 55.5
R15 = 387.307 D15 = 可変
R16 = Fno絞り D16 = 2.10
R17 = -154.972 D17 = 1.30 N 10 = 1.882997 ν10 = 40.8
R18 = 44.398 D18 = 2.50
R19 = -103.592 D19 = 1.61 N10 = 1.772499 ν10 = 49.6
R20 = 28.669 D20 = 4.45 N11 = 1.805181 ν11 = 25.4
R21 = -214.785 D21 = 1.03
R22 = 絞り D22 = 可変
R23 = 130.641 D23 = 1.30 N12 = 1.846660 ν12 = 23.9
R24 = 27.680 D24 = 0.05 N13 = 1.578566 ν13 = 16.5
R25 = 25.754 D25 = 7.33 N14 = 1.516330 ν14 = 64.1
R26 = -40.387 D26 = 0.15
R27 = 32.774 D27 = 4.68 N15 = 1.620411 ν15 = 60.3
R28 = -124.828 D28 = 可変
R29 = -97.100 D29 = 2.82 N16 = 1.882997 ν16 = 40.8
R30 = -41.123 D30 = 0.15
R31 = -45.224 D31 = 1.20 N17 = 1.772499 ν17 = 49.6
R32 = 29.258 D32 = 可変
R33 = 78.519 D33 = 7.61 N18 = 1.583126 ν18 = 59.4
* R34 = -76.846
\焦点距離 24.70 35.30 67.92
可変間隔\
D 7 54.09 28.54 1.50
D15 2.98 5.70 17.79
D22 16.60 13.88 1.79
D28 1.19 3.67 9.10
D32 4.24 11.69 15.90
非球面係数
1面 : A= 0.00000e+00 B= 1.18117e-06 C= 1.06699e-09 D=-3.06461e-12
E= 3.17212e-15 F=-1.19658e-18
34面 : A=-0.00000e+00 B= 8.11421e-07 C=-2.03354e-08 D= 1.22131e-10
E=-3.54783e-13 F= 3.93194e-16
数値実施例4
f= 16.49〜 33.98 Fno= 2.90 〜 2.90 2ω=105.4 〜 65.0
* R 1 = 802.400 D 1 = 2.00 N 1 = 1.772499 ν 1 = 49.6
R 2 = 21.308 D 2 = 0.32 N 2 = 1.578566 ν 2 = 16.5
R 3 = 21.638 D 3 = 16.86
R 4 = -63.782 D 4 = 1.20 N 3 = 1.834807 ν 3 = 42.7
R 5 = 44.159 D 5 = 0.34 N 4 = 1.524200 ν 4 = 51.4
* R 6 = 63.976 D 6 = 0.15
R 7 = 39.553 D 7 = 4.34 N 5 = 1.805181 ν 5 = 25.4
R 8 = 1131.513 D 8 = 可変
R 9 = 41.991 D 9 = 1.30 N 6 = 1.805181 ν 6 = 25.4
R10 = 20.820 D10 = 0.54 N 7 = 1.635550 ν 7 = 22.7
R11 = 23.803 D11 = 8.30 N 8 = 1.517417 ν 8 = 52.4
R12 = -107.329 D12 = 0.15
R13 = 40.735 D13 = 4.22 N 9 = 1.696797 ν 9 = 55.5
R14 = -102.029 D14 = 可変
R15 = 絞り D15 = 1.56
R16 = -1875.433 D16 = 1.52 N10 = 1.882997 ν10 = 40.8
R17 = 56.883 D17 = 3.14
R18 = -31.008 D18 = 1.00 N11 = 1.617722 ν11 = 49.8
R19 = 29.627 D19 = 5.44 N12 = 1.805181 ν12 = 25.4
R20 = -108.394 D20 = 1.02
R21 = FNo絞り D21 = 可変
R22 = 32.026 D22 = 7.49 N13 = 1.496999 ν13 = 81.5
R23 = -26.456 D23 = 0.05 N14 = 1.578566 ν14 = 16.5
R24 = -28.882 D24 = 1.30 N15 = 1.846660 ν15 = 23.9
R25 = -44.405 D25 = 0.20
R26 = -251.883 D26 = 1.20 N16 = 1.846660 ν16 = 23.9
R27 = 26.924 D27 = 2.31 N17 = 1.635550 ν17 = 22.7
R28 = 71.847 D28 = 4.55 N18 = 1.496999 ν18 = 81.5
R29 = -68.447 D29 = 0.15
R30 = 264.450 D30 = 3.00 N19 = 1.730770 ν19 = 40.5
* R31 = -132.564 D31 = 可変
R32 = フレアカッター
\焦点距離 16.49 24.00 33.98
可変間隔\
D 8 21.43 8.55 1.13
D14 0.85 5.68 11.12
D21 10.28 5.45 0.01
D31 0.00 8.55 20.30
非球面係数
1面 : A= 0.00000e+00 B= 1.62651e-05 C=-2.41951e-08 D= 3.40722e-11
E=-2.82586e-14 F= 1.10415e-17
6面 : A= 0.00000e+00 B= 1.41432e-05 C= 6.38426e-09 D=-2.43697e-10
E= 1.14082e-12 F=-1.78942e-15
31面 : A= 0.00000e+00 B= 9.83727e-06 C= 8.54996e-09 D= 6.55809e-11
E=-3.22925e-13 F= 6.78586e-16
数値実施例5
f= 24.60 Fno=1.46 2ω=82.7
R 1 = 65.313 D 1 = 2.80 N 1 = 1.696797 ν 1 = 55.5
R 2 = 31.601 D 2 = 6.86
R 3 = 76.307 D 3 = 2.30 N 2 = 1.696797 ν 2 = 55.5
R 4 = 35.016 D 4 = 6.48
R 5 = 322.917 D 5 = 4.38 N 3 = 1.834000 ν 3 = 37.2
R 6 = -101.191 D 6 = 3.64
R 7 = 78.925 D 7 = 3.46 N 4 = 1.846660 ν 4 = 23.8
R 8 = -527.679 D 8 = 0.05 N 5 = 1.635550 ν 5 = 22.7
R 9 = 173.236 D 9 = 1.65 N 6 = 1.487490 ν 6 = 70.2
R10 = 23.776 D10 = 7.10
R11 = フレアカッター D11 = 4.98
R12 = 30.832 D12 = 7.82 N 7 = 1.804000 ν 7 = 46.6
R13 = -59.395 D13 = 0.15
R14 = -353.576 D14 = 1.48 N 8 = 1.755199 ν 8 = 27.5
R15 = 40.441 D15 = 5.13
R16 = 絞り D16 = 8.68
R17 = -16.042 D17 = 1.50 N 9 = 1.805181 ν 9 = 25.4
R18 = -76.756 D18 = 0.05 N10 = 1.578566 ν10 = 16.5
R19 = -146.535 D19 = 2.98 N11 = 1.834807 ν11 = 42.7
* R20 = -32.582 D20 = 0.15
R21 = -193.002 D21 = 7.37 N12 = 1.603112 ν12 = 60.7
R22 = -22.620 D22 = 0.15
R23 = -69.417 D23 = 4.85 N13 = 1.772499 ν13 = 49.6
R24 = -30.218 D24 = 36.47
非球面係数
20面 : A= 0.00000e+00 B=2.13762e-05 C=2.72007e-08 D=-1.80717e-11
E=-1.75506e-13
数値実施例6
f= 24.83 Fno=1.46 2ω=82.1
R 1 = 67.697 D 1 = 2.80 N 1 = 1.696797 ν 1 = 55.5
R 2 = 35.617 D 2 = 5.28
R 3 = 68.261 D 3 = 2.30 N 2 = 1.696797 ν 2 = 55.5
R 4 = 30.886 D 4 = 7.72
R 5 = 286.375 D 5 = 4.38 N 3 = 1.712995 ν 3 = 53.8
R 6 = -90.506 D 6 = 3.68
R 7 = 60.777 D 7 = 2.81 N 4 = 1.755199 ν 4 = 27.5
R 8 = 177.484 D 8 = 0.70 N 5 = 1.635550 ν 5 = 22.7
R 9 = 2235.655 D 9 = 1.70 N 6 = 1.487490 ν 6 = 70.2
R10 = 22.928 D10 = 7.10
R11 = ∞ D11 = 4.87
R12 = 30.895 D12 = 6.78 N 7 = 1.804000 ν 7 = 46.6
R13 = -59.022 D13 = 0.15
R14 = -2922.376 D14 = 1.48 N 8 = 1.728250 ν 8 = 28.5
R15 = 39.587 D15 = 5.13
R16 = 絞り D16 = 6.89
R17 = -17.193 D17 = 1.50 N 9 = 1.805181 ν 9 = 25.4
R18 = 48.968 D18 = 1.22 N 5 = 1.578566 ν 5 = 16.5
R19 = 124.262 D19 = 4.00 N11 = 1.834807 ν11 = 42.7
* R20 = -40.549 D20 = 0.15
R21 = -422.369 D21 = 6.62 N12 = 1.603112 ν12 = 60.7
R22 = -25.797 D22 = 0.15
R23 = -87.810 D23 = 5.41 N13 = 1.772499 ν13 = 49.6
R24 = -29.834 D24 = 36.47
非球面係数
20面 : A= 0.00000e+00 B=1.76037e-05 C=1.33192e-08 D=-2.62982e-12
E=-1.42186e-13
P1〜P4 屈折光学素子
SP 開口絞り
FS Fナンバー絞り
FC フレアーカット絞り
IP 像面
d d線
g g線
C C線
F F線
ΔM メリディオナル像面
ΔS サジタル像面
Claims (7)
- アッベ数をνd、部分分散比をθgFとするとき、
−1.33×10−3×νd+6.7×10−1<θgF
なる条件を満足する固体材料で形成される少なくとも1つの第1屈折光学素子と、
−1.63×10−3×νd+6.2×10−1>θgF
なる条件を満足する固体材料で形成される少なくとも1つの第2屈折光学素子とを有することを特徴とする光学系。 - 前記光学系は、物体側から像側へ順に、正の屈折力の第1レンズ群、負の屈折力の第2レンズ群、正の屈折力の第3レンズ群、負の屈折力の第4レンズ群、正の屈折力の第5レンズ群を有し、
広角端に比して望遠端で、第1レンズ群と第2レンズ群の間隔が大きく、第2レンズ群と第3レンズ群の間隔が小さく、第3レンズ群と第4レンズ群の間隔が大きく、第4レンズ群と第5レンズ群の間隔が小さくなるように、隣接するレンズ群の間隔を変化させてズーミングを行うことを特徴とする請求項1の光学系。 - 前記第1レンズ群、前記第2レンズ群、前記第5レンズ群は、前記第1屈折光学素子または前記第2屈折光学素子を含むことを特徴とする請求項2の光学系。
- 前記光学系は、物体側から像側へ順に、負の屈折力の第1レンズ群、正の屈折力の第2レンズ群、負の屈折力の第3レンズ群、正の屈折力の第4レンズ群を有し、広角端に比べ望遠端で、第1レンズ群と第2レンズ群の間隔が小さく、第2レンズ群と第3レンズ群の間隔が大きく、第3レンズ群と第4レンズ群の間隔が小さくなるように、隣接するレンズ群の間隔を変化させてズーミングを行うことを特徴とする請求項1の光学系。
- 前記第1レンズ群、前記第2レンズ群、前記第4レンズ群は、前記第1屈折光学素子または前記第2屈折光学素子を含むことを特徴とする請求項4の光学系。
- 光電変換素子に像を形成することを特徴とする請求項1〜5のいずれか1項に記載の光学系。
- 請求項1〜6のいずれか1項の光学系を備えることを特徴とする撮像装置。
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