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Telephoto zoom lens system and photographing device having the telephoto zoom lens system

A zoom lens and telephoto technology, applied in the field of telephoto zoom lens system, can solve the problem of increased weight of the focusing lens group

Inactive Publication Date: 2017-04-12
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the diameter of the first lens group is relatively large, the diameter of the following lens group is also relatively large, thereby increasing the weight of the focusing lens group.

Method used

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  • Telephoto zoom lens system and photographing device having the telephoto zoom lens system
  • Telephoto zoom lens system and photographing device having the telephoto zoom lens system
  • Telephoto zoom lens system and photographing device having the telephoto zoom lens system

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0061] figure 1 is a view schematically showing a wide-angle position, an intermediate position, and a telephoto position of the telephoto zoom lens system according to the first embodiment. The following table shows the design data of the first embodiment. exist figure 1 In , only some lens surface symbols are shown.

[0062] lens surface R Dn Nd Vd obj gigantic D1 1 122.310 2.000 1.80610 33.27 2 53.362 7.720 1.48749 70.44 3 444.274 0.100 4 85.639 5.500 1.48749 70.44

[0063] 5 301.165 0.100 6 60.663 7.900 1.49700 81.61 7 -496.555 D2 8 gigantic 1.000 1.69680 55.46 9 33.092 3.756 10 -65.199 1.000 1.77250 49.62 11 30.164 4.830 1.84666 23.78 12 -349.974 1.794 13 -43.054 1.000 1.69680 55.46 14 -446.234 D3 15 -227.824 3.000 1.71300 53.94 16 -57.775 0.100 17 66.707 6.110 1.56883 56.04 18 -...

no. 2 Embodiment

[0069] Figure 5 is schematically showing a telephoto zoom lens system according to the second embodiment. The following table shows the design data of the second embodiment.

[0070]

[0071]

[0072]The table below shows the variable distance, focal length, angle of view, and F-number during zooming in the second embodiment.

[0073] Z1 Z2 Z3 Z4 Z5 Z6 D1 gigantic gigantic gigantic 821.500000 821.500000 821.500000 D2 2.000000 17.229381 32.458762 2.000000 17.229381 32.458762 D3 13.902263 10.757307 2.438708 15.057230 13.045507 9.026346 D4 28.647879 16.378636 9.578497 27.492912 14.090436 2.990859 D5 2.855558 3.040376 2.929733 2.855558 3.040376 2.929733 D6 27.643300 27.643300 27.643300 27.643300 27.643300 27.643300 D7 1.000000 1.000000 1.000000 1.000000 1.000000 1.000000 f 51.502 77.545 145.420 0.0578 0.0809 0.1280 2ω 15.47 10.41 5.60 Fno 2.91 2.92 2.92 ...

no. 3 example

[0076] Figure 9 A telephoto zoom lens system according to the third embodiment is shown. The following table shows the design data of the third embodiment.

[0077] lens surface R Dn Nd Vd obj gigantic D1 1 118.622 2.000 1.71736 29.50 2 57.821 6.000 1.49700 81.61 3 180.521 0.100 4 97.884 6.150 1.49700 81.61 5 -338.115 0.100 6 55.183 6.820 1.49700 81.61 7 478.347 D2 8 -304.865 3.430 1.90366 31.31 9 -58.267 1.000 1.74330 49.22 10 30.404 4.957 11 -81.311 1.000 1.77250 49.62 12 28.677 4.790 1.84666 23.78 13 -525.202 2.049 14 -37.550 1.000 1.77250 49.62 15 -343.270 D3 16 -387.596 3.000 1.77250 49.62 17 -61.530 0.100 18 99.944 5.710 1.63854 55.45 19 -38.571 1.000 1.84666 23.78 20 -118.474 D4 21 34.904 4.870 1.49700 81.61 22 289.289 0.100 23 49.708 3.500 1.7...

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PUM

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Abstract

The invention discloses a telephoto zoom lens system and a photographing device with the telephoto zoom lens system. The telephoto zoom lens system includes: a first lens group with a positive focal length; a second lens group with a negative focal length; a third lens group with a positive focal length or a negative focal length; a fourth lens group with a positive focal length; A lens group for performing hand-shake compensation by allowing a portion of the fifth lens group to move vertically with respect to the optical axis. During zooming, the first lens group and the fifth lens group are fixed, the second lens group, the third lens group and the fourth lens group move, and the third lens group or the fourth lens group is a focusing lens group.

Description

[0001] This application claims the benefit of Korean Patent Application No. 10-2012-0050468 filed with the Korean Intellectual Property Office on May 11, 2012, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] Embodiments relate to a telephoto zoom lens system capable of fast focusing with a lighter focusing lens group, and to a photographing apparatus having such a telephoto zoom lens system. Background technique [0003] For photographing devices using solid-state image sensors such as digital cameras, interchangeable lens systems, or video cameras, users demand high resolution, high magnification, and the like. Additionally, consumer sophistication with photographic equipment has increased. Therefore, large-diameter telephoto zoom lens systems have been advanced in accordance with market trends. In large-diameter telephoto zoom lens systems, the lens group immediately after the first lens group is usually used as the fo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B15/17G02B15/173G03B5/00
CPCG02B15/173G02B13/02G02B15/144113G02B15/15G02B15/144109G02B15/1451G02B13/009G02B27/646G02B3/0087G03B17/12G02B2003/0093H04N23/55G02B15/00
Inventor 柳在明
Owner SAMSUNG ELECTRONICS CO LTD