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Zoom lens, photographic device using zoom lens, and image transmission device and system

A zoom lens, focal length technology, applied in the field of zoom lens, can solve the problem of no zoom lens and so on

Inactive Publication Date: 2013-04-10
OM DIGITAL SOLUTIONS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a zoom lens that satisfies these conditions has not yet been proposed

Method used

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  • Zoom lens, photographic device using zoom lens, and image transmission device and system
  • Zoom lens, photographic device using zoom lens, and image transmission device and system
  • Zoom lens, photographic device using zoom lens, and image transmission device and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0416] unit mm

[0417]

[0418]

[0419] Aspheric Data

[0420] side 8

[0421] K=0.000

[0422] A4=-5.03000e-04, A6=7.45000e-06, A8=-2.42000e-08, A10=-1.98000e-10

[0423] side 9

[0424] K=0.000

[0425] A4=-7.17050e-04, A6=7.98000e-06, A8=-4.40000e-08, A10=-7.95000e-10

[0426] side 14

[0427] K=0.000

[0428] A4=-9.56000e-05, A6=2.38000e-08

[0429] side 15

[0430] K=0.000

[0431] A4=6.97e-05

[0432] side 23

[0433] K=0.000

[0434] A4=-5.35360e-04, A6=1.44000e-05, A8=9.60000e-08

[0435] side 24

[0436] K=0.000

[0437] A4=-3.19000e-05, A6=1.02000e-05, A8=3.26000e-07

[0438] various data

[0439]

[0440] Focal length of each group

[0441] f1=55.14f2=-8.06f3=-134.87f4=29.10f5=22.56f6=30.59

Embodiment 2

[0443] unit mm

[0444]

[0445]

[0446] Aspheric Data

[0447] side 8

[0448] K=0.000

[0449] A4=-5.03027e-04, A6=7.45000e-06, A8=-2.42000e-08, A10=-1.98000e-10

[0450] side 9

[0451] K=0.000

[0452] A4=-7.17050e-04, A6=7.98000e-06, A8=-4.22000e-08, A10=-7.95000e-10

[0453] side 14

[0454] K=0.000

[0455] A4=-9.56000e-05, A6=2.38000e-08

[0456] side 15

[0457] K=0.000

[0458] A4=6.97e-05

[0459] side 23

[0460] K=0.000

[0461] A4=-5.35356e-04, A6=1.49000e-05, A8=9.60000e-08

[0462] side 24

[0463] K=0.000

[0464] A4=-3.19000e-05, A6=1.02000e-05, A8=3.26000e-07

[0465] various data

[0466]

[0467] Focal length of each group

[0468] f1=55.12f2=-8.06f3=-134.87f4=29.13f5=22.56f6=30.59

Embodiment 3

[0470] unit mm

[0471]

[0472]

[0473] Aspheric Data

[0474] side 8

[0475] K=0.000

[0476] A4=-5.00871e-04, A6=7.43000e-06, A8=-2.30000e-08, A10=-1.89000e-10

[0477] side 9

[0478] K=0000

[0479] A4=-7.17111e-04, A6=8.00000e-06, A8=-4.25000e-08, A10=-7.75000e-10

[0480] side 14

[0481] K=0.000

[0482] A4=-9.54000e-05, A6=2.47000e-08

[0483] side 15

[0484] K=0.000

[0485] A4=6.96e-05

[0486] side 23

[0487] K=0.000

[0488] A4=-5.35346e-04, A6=1.50000e-05, A8=1.10000e-07

[0489] side 24

[0490] K=0.000

[0491] A4=-2.76000e-05, A6=1.04000e-05, A8=3.34000e-07

[0492] various data

[0493]

[0494] Focal length of each group

[0495] f1=55.44f2=-8.05f3=-135.17f4=29.16f5=22.58f6=30.52

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PUM

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Abstract

The present invention relates to a zoom lens, a photographic device using the zoom lens, and image transmission device and system, wherein the zoom lens is characterized by comprising, from an object side, a first lens set with a positive refractive power, a second lens set with a negative refractive power, a third lens set with a negative refractive power, a fourth lens set with a positive refractive power, a fifth lens with a positive refractive power, and a final lens set with a positive refractive power, and when the zoom lens is zoomed from a wide angle end to a telescopic end, the second lens set and the third lens set move, and one of the fourth, fifth and final lens sets moves.

Description

technical field [0001] The present invention relates to a zoom lens, an imaging device using the zoom lens, an image transmission device and an image transmission system. Background technique [0002] In movie shooting, shooting is often performed while zooming or focusing. In the case of zooming or focusing frequently, the weight of the lens affects the focusing speed. Also, if the overall length of the lens changes when focusing, the optical system or the entire imaging device becomes larger. In addition, since the center of gravity moves a lot, it is difficult to stabilize the balance. Therefore, a zoom lens has been proposed in which the front lens (group) in the optical system does not move, and only relatively small lenses are moved to increase the focusing speed and make the whole compact. [0003] As an example of a zoom lens in which the first lens group is fixed, a zoom lens consisting of a first lens group having a positive refractive power, a second lens group...

Claims

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Application Information

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IPC IPC(8): G02B15/17H04N5/225H04N7/15
Inventor 三原伸一大田龙
Owner OM DIGITAL SOLUTIONS CORP