CN102385142B - Periscopic lens - Google Patents
Periscopic lens Download PDFInfo
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- CN102385142B CN102385142B CN 201010281289 CN201010281289A CN102385142B CN 102385142 B CN102385142 B CN 102385142B CN 201010281289 CN201010281289 CN 201010281289 CN 201010281289 A CN201010281289 A CN 201010281289A CN 102385142 B CN102385142 B CN 102385142B
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- 230000003287 optical effect Effects 0.000 claims abstract description 91
- 238000003384 imaging method Methods 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 230000004308 accommodation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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Abstract
The invention relates to a periscopic lens, which comprises a first reflecting prism, at least a first mirror group, a second reflecting prism, at least a second mirror group, a third reflecting prism and at least a third mirror group which are sequentially arranged along an optical axis from an object side to an image surface, wherein a first optical axis section is arranged between the first reflecting prism and the second reflecting prism of the optical axis, and the at least one first mirror group is positioned on the first optical axis section; the optical axis is a second optical axis section between the second reflecting prism and the third reflecting prism, the at least one second mirror group is positioned on the second optical axis section, and the second optical axis section is vertical to the first optical axis section; the optical axis is a third optical axis section between the third reflection prism and the imaging surface, the at least one third mirror group is arranged on the third optical axis section, and the third optical axis section is vertical to the second optical axis section, so that the purpose of improving the optical zoom magnification by extending the optical axis path is achieved.
Description
Technical field
The present invention is relevant with camera lens, more specifically refers to a kind of periscope type lens.
Background technology
Along with science and technology is constantly progressive, on the market as digital camera or have mobile phone, electronic game Game device, the PDA of camera function ... Deng image capture unit universalness day by day, it can with clapping the facilitating functions of namely seeing, become the popular portable tool that is used for recording things in daily life or work.
For making image capture unit more convenient to carry, what general existing lens construction comparatively was widely used is heavy trunk formula camera lens (Cylinder Cam Type Lens) (or being called as telescopic camera lens), its inside is provided with many arrangements of mirrors group, and by those mirrors of elastic change group's of camera lens position, use being adjusted to best shooting focal length.And when heavy trunk formula camera lens is not used, can inwardly shrink and be accommodated in image capture unit, to reach portable purpose.But, though heavy trunk formula camera lens can be taken in camera lens, actuating travel required when but carrying out zoom because of many arrangements of mirrors group of camera lens inside is excessive, so that lens construction is difficult to miniaturization, and then can't reach the purpose of effectively reducing the image capture unit overall volume.
For improving the heavy described shortcoming of trunk formula camera lens, then there is the dealer to invent a kind of periscope type lens (PrismType Lens), described in its structure such as TaiWan, China M376769 patent " Periscopic lens structure ", the Jing Qunzang of this periscope type lens is located in image capture unit, and by total reflection prism, incident ray is reflected toward these mirrors group direction, those mirrors group is the mode to move respectively on the straight line optical axis again, adjusts best shooting focal length.By this, periscope type lens just can not must protrude into camera lens outside camera lens, and then reduces the structure setting of dolly camera, and this can significantly reduce thickness and the weight of image capture unit, to reach the purpose that effectively promotes the image capture unit portability.
Yet, though above-mentioned periscope type lens can significantly reduce thickness and the weight of image capture unit, but because its inner Jing Qunzang is located in image capture unit, and only can move on this straight line optical axis, and make those mirrors group's actuating travel be restricted, and then cause the multiplying power of periscope type lens optical zoom effectively to be promoted.If but the straight line optical axis is extended, will cause the volume of image capture unit to strengthen, and will make the design original meaning of periscope type lens have a greatly reduced quality.Therefore, above-mentioned periscope type lens is not attained perfect and the part that still haves much room for improvement yet.
Summary of the invention
In view of this, the technical matters that will solve of the present invention is, the defective for the optics multiplying power of periscope type lens in prior art can't effectively promote provides a kind of periscope type lens, can reach the purpose of improving optical zoom ratio.
The technical solution adopted for the present invention to solve the technical problems is, a kind of periscope type lens is provided, sequentially include the first reflecting prism, at least one first mirror group, the second reflecting prism, at least one the second mirror group, the 3rd reflecting prism and at least one the 3rd mirror group along optical axis and by the thing side to being image planes, wherein, this optical axis is the primary optic axis section between this first reflecting prism and this second reflecting prism, and this at least one first mirror group is positioned on this primary optic axis section; This optical axis is the second optical axis section between the second reflecting prism and the 3rd reflecting prism, and this at least one second mirror group is positioned on this second optical axis section, and vertical this primary optic axis section of this second optical axis section; It is the 3rd optical axis section that this optical axis is between image planes in the 3rd reflecting prism and this, and this at least one the 3rd mirror group is set on the 3rd optical axis section, and vertical this second optical axis section of the 3rd optical axis section.
Implement periscope type lens of the present invention, have following effect: can utilize the optical characteristics of those reflecting prisms to reach the effect that extends the overall path length of this optical axis in the finite space; The attainable optical zoom multiplying power of those mirrors group thereby get a promotion does not increase the volume of whole camera lens simultaneously yet.
Description of drawings
Fig. 1 is the schematic diagram of the present invention's the first preferred embodiment.
Fig. 2 is that the invention described above the first preferred embodiment is in the sectional view of primary optic axis section.
Fig. 3 is a schematic diagram, can utilize three drive units to drive respectively this first mirror group, this second mirror group and the 3rd mirror group.
Fig. 4 is the schematic diagram of the present invention's the second preferred embodiment.
Embodiment
For being illustrated more clearly in the present invention, lifting preferred embodiment and coordinate accompanying drawing to be described in detail as follows.
Please coordinate shown in Fig. 1,2, periscope type lens 1 for the present invention's the first preferred embodiment, it includes by thing side 110 to being image planes 111 and along optical axis 100 sequentially optical mirror slip 10, the first reflecting prism 21, first mirror group 31, the second reflecting prism 22, the second mirror group 32, the 3rd reflecting prism 23 and the 3rd mirror group 33 of spread configuration, and is in this and is provided with image sensor 40 on image planes 111.Wherein:
Those reflecting prisms 21～23 have makes opticpath produce 90 characteristics of writing music and rolling over.That is, after this optical axis 100 is subjected to 21～23 effects of those reflecting prisms, as shown in Figure 1 the complications that are subjected to are the ㄩ font.In other words, this optical axis 100 is primary optic axis section 101 between this first reflecting prism 21 and this second reflecting prism 22; This optical axis 100 is the second optical axis section 102 between the second reflecting prism 22 and the 3rd reflecting prism 23, and vertical this primary optic axis section 101 of this second optical axis section 102; This optical axis 100 is the 3rd optical axis section 103 between the 3rd reflecting prism 23 and this image sensor 40, and vertical this second optical axis section 102 of the 3rd optical axis section 103.By this, just can utilize the optical characteristics of those reflecting prisms 21～23 to reach the effect that extends the overall path length of this optical axis 100 in the finite space.
See also Fig. 1, this first mirror group 31 is positioned on this primary optic axis section 101, this second mirror group 32 is positioned on this second optical axis section 102, the 3rd mirror group 33 is positioned on the 3rd optical axis section 103, and those mirrors group 31～33 is subjected to drive unit 50 to drive respectively to move back and forth along those optical axis sections 101～103.In addition, those mirrors group 31～33 extends because of the overall path length of this optical axis 100 the interval increasing that causes each other, but make those mirrors group 31～33 actuating travel increase, i.e. thereupon expression, the attainable optical zoom multiplying power of those mirrors group 31～33 is also thereby get a promotion.Must be noted that, in the present embodiment, those mirrors group 31～33 utilizes single mirror group to be example, but not as limit, also can use many arrangements of mirrors group to replace in design, and those mirrors group 31～33 can be respectively single lens, plural lens, single compound lens or plural compound lens consists of.
it is worth mentioning that, for avoiding making this periscope type lens 1 volume promote because of the path increase of optical axis 100, and then the situation that the design original meaning that causes periscope type lens 1 miniaturization is had a greatly reduced quality produces, drive unit 50 in the present embodiment is positioned at the accommodation space 60 that 101～103 of those optical axis sections enclose formation, and can be simultaneously for focusing in this accommodation space 60, optics covers or prevents that hand shakes ... arrange Deng the required control device of other function (figure slightly), make the occupied space minimizing of composition assembly of this periscope type lens 1, use the overall volume that reduces this periscope type lens 1, and then reach the purpose of miniaturization.
In addition, under the condition that does not cause this periscope type lens 1 volume to increase, can utilize as shown in Figure 3 three drive units 51～53 to drive respectively this first mirror group 31, this second mirror group 32 and the 3rd mirror group 33, so that those mirrors group 31～33 has better displacement precision, use making imaging effect be promoted.
Comprehensively the above can be learnt, periscope type lens 1 of the present invention not only can utilize the overall path length that extends this optical axis 100, reach the purpose of improving optical zoom ratio, more utilize required drive unit 50 is located at the interior design of accommodation space 60, make periscope type lens 1 still can reach the design original meaning of miniaturization.
Except said structure arranges, below just can reach again the overall path length purpose that extends optical axis other method to set up describe:
See also Fig. 4, be the periscope type lens 2 of the present invention's the second preferred embodiment, make above-described embodiment difference be that the 3rd optical axis section 203 of optical axis 200 is for tortuous downwards.The benefit of this kind design is when other additional function of this periscope type lens 2 increases, and reaches in the second accommodation space 72 that the drive unit of additional function institute palpus and control device just can on average be arranged at the first accommodation space 71 of the second optical axis section 202 tops and the second optical axis section 202 belows.Use and avoid drive unit or control device too low because the too crowded isolation each other that causes is set, and then cause signal to produce to disturb and make the clear situation of additional function or imaging effect occur.
The above only is several better possible embodiments of the present invention, and the equivalent structure that all application instructions of the present invention and claim are done and method for making change, and ought to be included in the scope of the claims of the present invention.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281289 CN102385142B (en) | 2010-09-01 | 2010-09-01 | Periscopic lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281289 CN102385142B (en) | 2010-09-01 | 2010-09-01 | Periscopic lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102385142A CN102385142A (en) | 2012-03-21 |
| CN102385142B true CN102385142B (en) | 2013-06-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010281289 Active CN102385142B (en) | 2010-09-01 | 2010-09-01 | Periscopic lens |
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| Country | Link |
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| CN (1) | CN102385142B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110519488B (en) * | 2018-05-22 | 2024-10-01 | 宁波舜宇光电信息有限公司 | Periscope type camera module, manufacturing method thereof, periscope type array module and electronic equipment |
| CN110568583A (en) * | 2019-07-23 | 2019-12-13 | 珠海格力电器股份有限公司 | Periscopic camera and mobile device |
| CN112532815B (en) * | 2019-09-18 | 2022-04-26 | 宁波舜宇光电信息有限公司 | Periscopic camera module and electronic equipment |
| WO2021217608A1 (en) * | 2020-04-30 | 2021-11-04 | 南昌欧菲光电技术有限公司 | Camera module and electronic device |
| CN111474680A (en) * | 2020-05-13 | 2020-07-31 | Oppo广东移动通信有限公司 | Optical lenses, camera modules and electronic devices |
| US12328494B2 (en) | 2022-11-09 | 2025-06-10 | Samsung Electro-Mechanics Co., Ltd. | Camera module |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577038A (en) * | 2003-07-18 | 2005-02-09 | 索尼株式会社 | Variable power finder and imaging apparatus |
| CN201289579Y (en) * | 2008-10-30 | 2009-08-12 | 亚洲光学股份有限公司 | Photographic arrangement with hidden vision type lens |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005128364A (en) * | 2003-10-27 | 2005-05-19 | Canon Inc | Finder and optical equipment |
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2010
- 2010-09-01 CN CN 201010281289 patent/CN102385142B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1577038A (en) * | 2003-07-18 | 2005-02-09 | 索尼株式会社 | Variable power finder and imaging apparatus |
| CN201289579Y (en) * | 2008-10-30 | 2009-08-12 | 亚洲光学股份有限公司 | Photographic arrangement with hidden vision type lens |
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| Publication number | Publication date |
|---|---|
| CN102385142A (en) | 2012-03-21 |
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