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Zoom lens and electronic device comprising same

A zoom lens and lens technology, applied in the structure, installation, optics, etc. of the telephone, can solve the problems of limited moving space, increasing the size of the zoom lens, unfavorable application of the zoom lens, etc., and achieve the effect of saving moving space

Inactive Publication Date: 2012-08-15
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the former needs to move the optical lens in the direction of the optical axis. When the zoom lens is installed in a limited moving space, such as when installed in a mobile phone, the moving space will be greatly limited; the latter needs to increase the bending of the optical path. Components will also increase the volume of the zoom lens, which is not conducive to applying the zoom lens to miniaturized electronic equipment, such as mobile phones

Method used

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  • Zoom lens and electronic device comprising same
  • Zoom lens and electronic device comprising same
  • Zoom lens and electronic device comprising same

Examples

Experimental program
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no. 1 approach

[0045] See figure 1 versus figure 2 The first embodiment of the present invention provides an electronic device 100, which includes a housing 10, a circuit board 20 housed in the housing 10, a zoom lens 30, and a display screen 40. The zoom lens 30 is fixedly arranged on the circuit board 20 and is housed in the housing 10. The zoom lens 30 obtains clear images by adjusting its zoom ratio, and the display screen 40 displays the images obtained by the zoom lens 30 in real time. In this embodiment, the electronic device 100 is a mobile phone.

[0046] The housing 10 includes a main body 11 and a cover plate 13 fixed on the main body 11, and the cover plate 13 is arranged in parallel with the circuit board 20. The cover plate 13 defines a first through hole 15 and a blind hole 17 adjacent to the first through hole 15. The first through hole 15 is covered with a transparent cover 19 for light to enter the zoom lens 30, and the opening of the blind hole 17 faces the circuit substra...

no. 2 approach

[0058] See Figure 4 In the second embodiment, the adjusting plate 33' can be fixed to the circuit board 20' via the rotating shaft 37'. At this time, the circuit substrate 20' is composed of a first substrate 20a and a second substrate 20b on the same plane, the base lens 31' is fixed on the first substrate 20a, and the adjusting plate 33' passes through the rotating shaft 37' The motor 39' is fixed on the second substrate 20b, and the motor 39' is fixed on the second substrate 20b. In this embodiment, the circuit substrate 20' can be regarded as the first substrate 20a, the cover plate 13' can be regarded as the second substrate 20b, and the base lens 31' and the adjusting plate 33' are sandwiched Between the first substrate 20a and the second substrate 20b.

[0059] To sum up, the electronic device 100 of the present invention can continuously replace the focus lens provided in front of the base lens by rotating the adjustment plate, thereby being able to control the zoom ma...

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Abstract

A zoom lens comprises a base lens, an adjusting plate and at least one focusing lens. The base lens is arranged on a first substrate and comprises a lens group, and an optical axis is formed at the center of the lens group. The adjusting plate is limited on a second substrate through a rotating shaft and can rotate relative to the base lens, and at least one second through hole is arranged on the adjusting plate around the rotating shaft. The focusing lenses are placed in the second through holes. When the adjusting plate rotates relative to the base lens, the central axis of each focusing lens can rotate to a position overlapped with the optical axis, so that the zoom ratio of the zoom lens is equal to the synthetic zoom ratio of the base lens and the focusing lens. The synthetic zoom ratio is calculated according to the formula which is beta=beta1Xbeta2, wherein the beta1 refers to the zoom ratio of the base lens, and the beta2 refers to the zoom ratio of the focusing lens. When the central axis of each focusing lens does not rotate to the position overlapped with the optical axis, the zoom ratio of the zoom lens is equal to that of the base lens. The invention further provides an electronic device comprising the zoom lens.

Description

Technical field [0001] The invention relates to a zoom lens and an electronic device used in the same. Background technique [0002] The existing zoom lens usually has a plurality of movable optical lenses arranged in the direction of the optical axis, or zooming is achieved by means of a periscope lens. However, the former needs to move the optical lens in the direction of the optical axis. When the zoom lens is installed in a limited moving space, such as when installed in a mobile phone, the moving space will be greatly restricted; the latter needs to increase the bending light path. Components also increase the volume of the zoom lens, which is not conducive to applying the zoom lens to miniaturized electronic devices, such as mobile phones. Summary of the invention [0003] In view of this, it is necessary to provide a miniaturized zoom lens and electronic equipment for its application. [0004] A zoom lens includes: a base lens arranged on a first substrate, the base lens in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B7/04H04M1/02G03B30/00
Inventor 何鸿隆
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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