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Zoom lens and image pickup apparatus using the same

A technology of zoom lens and lens, which is applied in the field of zoom lens and camera device, and can solve problems such as no zoom lens

Inactive Publication Date: 2016-11-23
OM DIGITAL SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no zoom lens that satisfies these conditions has been proposed

Method used

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  • Zoom lens and image pickup apparatus using the same
  • Zoom lens and image pickup apparatus using the same
  • Zoom lens and image pickup apparatus using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0932] unit mm

[0933] surface data

[0934]

[0935]

[0936] Aspheric data

[0937] side 8

[0938] K=0.

[0939] A2=0.0000E+00, A4=-1.3796E-04, A6=-3.4249E-06, A8=7.1817E-10, A10=0.0000E+00

[0940] side 9

[0941] K=0.

[0942] A2=0.0000E+00, A4=-2.7228E-04, A6=-4.6717E-06, A8=3.7336E-08, A10=0.0000E+00

[0943] side 14

[0944] K=0.

[0945]A2=0.0000E+00, A4=-1.1404E-04, A6=-1.0637E-06, A8=5.9473E-10, A10=0.0000E+00

[0946] side 15

[0947] K=0.

[0948] A2=0.0000E+00, A4=7.6388E-05, A6=-9.1278E-07, A8=0.0000E+00, A10=0.0000E+00

[0949] side 24

[0950] K=0.

[0951] A2=0.0000E+00, A4=2.9911E-04, A6=-9.6034E-08, A8=0.0000E+00, A10=0.0000E+00

[0952] various data

[0953]

[0954] Zoom lens group data

[0955]

Embodiment 2

[0957] unit mm

[0958] surface data

[0959]

[0960]

[0961] Aspheric Data

[0962] side 8

[0963] K=0.

[0964] A2=0.0000E+00, A4=-4.2882E-04, A6=7.7927E-06, A8=-1.3054E-08, A10=0.0000E+00

[0965] side 9

[0966] K=0.

[0967] A2=0.0000E+00, A4=-6.0362E-04, A6=8.9092E-06, A8=-3.8039E-08, A10=0.0000E+00

[0968] side 14

[0969] K=0.

[0970] A2=0.0000E+00, A4=-9.1865E-05, A6=1.0809E-07, A8=0.0000E+00, A10=0.0000E+00

[0971] side 15

[0972] K=0.

[0973] A2=0.0000E+00, A4=8.8658E-05, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[0974] side 23

[0975] K=0.

[0976] A2=0.0000E+00, A4=-4.9854E-04, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[0977] side 24

[0978] K=0.

[0979] A2=0.0000E+00, A4=-2.6516E-05, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[0980] various data

[0981]

[0982]

[0983] Zoom lens group data

[0984]

Embodiment 3

[0986] unit mm

[0987] surface data

[0988]

[0989]

[0990] Aspheric Data

[0991] side 8

[0992] K=0.

[0993] A2=0.0000E+00, A4=-4.2787E-04, A6=7.8053E-06, A8=3.9279E-09, A10=0.0000E+00

[0994] side 9

[0995] K=0.

[0996] A2=0.0000E+00, A4=-6.1721E-04, A6=9.3376E-06, A8=-3.7342E-08, A10=0.0000E+00

[0997] side 14

[0998] K=0.

[0999] A2=0.0000E+00, A4=-9.3961E-05, A6=1.0370E-07, A8=0.0000E+00, A10=0.0000E+00

[1000] side 15

[1001] K=0.

[1002] A2=0.0000E+00, A4=8.9752E-05, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[1003] side 23

[1004] K=0.

[1005] A2=0.0000E+00, A4=-4.1583E-04, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[1006] side 24

[1007] K=0.

[1008] A2=0.0000E+00, A4=1.2097E-04, A6=0.0000E+00, A8=0.0000E+00, A10=0.0000E+00

[1009] various data

[1010]

[1011] Zoom lens group data

[1012]

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Abstract

The invention provides a zoom lens and an image pickup apparatus using the same. The zoom lens includes in order from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a last lens group having a positive refractive power, and at the time of zooming from the wide angle end to the telephoto end, the first lens group is fixed, the second lens group moves toward a side of an image plane, the third lens group is fixed, and the fourth lens group moves, and at the time of focusing, the fourth lens group moves. The zoom lens satisfies the following conditional expression (101), (108'') and (117''): 0.20<log([beta]34T / [beta]34W)<0.9log [gamma](101), -0.15<f2<f1<-0.06 (108''), and 0.76<the absolute value of [beta]FW<0.90 (117'').

Description

[0001] This application is a divisional application of the invention patent application with the application number 201210185141.6, the application date is June 6, 2012, and the invention title is "zoom lens and imaging device using the zoom lens". technical field [0002] The present invention relates to a zoom lens and an imaging device using the zoom lens. Background technique [0003] In movie shooting, shooting is always performed while zooming and focusing. The so-called always zooming and focusing means always moving the lens group of the optical system. When the lens group moves, there is a sliding sound accompanying it. When the sliding sound is loud, it is recorded as noise. Therefore, zoom lenses with reduced moving lens groups have been proposed. [0004] As an example of a zoom lens that reduces movement of lens groups, a zoom lens is proposed in which a first lens group having a positive refractive power, a second lens group having a negative refractive powe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B15/173H04N5/225
CPCG02B15/145129H04N23/00
Inventor 大田龙三原伸一
Owner OM DIGITAL SOLUTIONS CORP