CN102385142A - Periscope type lens - Google Patents
Periscope type lens Download PDFInfo
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- CN102385142A CN102385142A CN2010102812890A CN201010281289A CN102385142A CN 102385142 A CN102385142 A CN 102385142A CN 2010102812890 A CN2010102812890 A CN 2010102812890A CN 201010281289 A CN201010281289 A CN 201010281289A CN 102385142 A CN102385142 A CN 102385142A
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- reflecting prism
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Abstract
The invention relates to a periscope type lens. The periscope type lens comprises a first reflecting prism, at least one first lens group, a second reflecting prism, at least one second lens group, a third reflecting prism and at least one third lens group which are sequentially arranged along the optical axis and from the object side to the imaging surface, wherein the first optical axis section of the optical axis is between the first reflecting prism and the second reflecting prism, the first lens group is positioned on the first optical axis section, the second axis section of the optical axis is between the second reflecting prism and the third reflecting prism, the second lens group is positioned on the second optical axis section, the second optical axis section is perpendicular to the first optical axis section, the third optical axis section of the optical axis is between the third reflecting prism and the imaging surface, the third lens group is positioned on the third optical axis section, the third optical axis section is perpendicular to the second optical axis section, and consequently, the extended optical axis path is utilized to achieve the purpose of increasing the optical zooming power.
Description
Technical field
The present invention is relevant with camera lens, more specifically is meant a kind of periscopic camera 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 become the popular portable tool that in daily life or work, is used for writing down things with clapping the facilitating functions of promptly seeing.
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 crowd; And, use being adjusted to best shooting focal length by those mirrors of elastic change crowd's of camera lens position.And when heavy trunk formula camera lens is not used, then can inwardly shrink and be accommodated in the 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 the inner many arrangements of mirrors crowd of camera lens is excessive, so that lens construction is difficult to miniaturization, and then can't reach the purpose of reducing the image capture unit overall volume effectively.
For improving the heavy described shortcoming of trunk formula camera lens; Then there is the dealer to invent a kind of periscopic camera lens (PrismType Lens); Described in its structure such as the TaiWan, China M376769 patent " periscopic lens construction ", the Jing Qunzang of this periscopic camera lens is located in the image capture unit, and by total reflection prism incident ray is reflected toward these mirrors crowd direction; Those mirrors crowd is the mode on the straight line optical axis, to move respectively again, the shooting focal length that adjustment is best.By this, the periscopic camera lens just can not must protrude into camera lens outside the camera lens, and then reduces the structure setting of dolly camera, and this can significantly reduce the thickness and the weight of image capture unit, promotes the portable purpose of image capture unit effectively to reach.
Yet; Though above-mentioned periscopic camera lens can significantly reduce the thickness and the weight of image capture unit; But because of its inner Jing Qunzang is located in the image capture unit; And only can on this straight line optical axis, move, and make those mirrors crowd's actuating travel be restricted, and then cause the multiplying power of periscopic lens optical zoom can't be by effective lifting.But, will cause the volume of image capture unit to strengthen, and will make the design original meaning of periscopic camera lens have a greatly reduced quality if the straight line optical axis is prolonged.Therefore, above-mentioned periscopic camera 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 to the optics multiplying power of periscopic camera lens in the prior art can't effectively promote provides a kind of periscopic camera lens, can reach the purpose that promotes the optical zoom multiplying power.
The technical solution adopted for the present invention to solve the technical problems is; A kind of periscopic camera lens is provided; Include first reflecting prism, at least one first mirror crowd, second reflecting prism, at least one second mirror crowd, the 3rd reflecting prism and at least one the 3rd mirror crowd along optical axis and by the thing side in regular turn 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 crowd is positioned on this primary optic axis section; This optical axis is the second optical axis section between second reflecting prism and the 3rd reflecting prism, and this at least one second mirror crowd 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 the image planes in the 3rd reflecting prism and this, and this at least one the 3rd mirror crowd is set on the 3rd optical axis section, and vertical this second optical axis section of the 3rd optical axis section.
The periscopic camera lens of embodiment of the present invention has following effect: can utilize the optical characteristics of those reflecting prisms to reach the effect that in the finite space, prolongs the overall path length of this optical axis; The attainable optical zoom multiplying power of those mirrors crowd thereby get a promotion does not increase the volume of whole camera lens simultaneously yet.
Description of drawings
Fig. 1 is the synoptic diagram of the present invention's first preferred embodiment.
Fig. 2 is that the invention described above first preferred embodiment is in the sectional view of primary optic axis section.
Fig. 3 is a synoptic diagram, and three drive units capable of using drive this first mirror crowd, this second mirror crowd and the 3rd mirror crowd respectively.
Fig. 4 is the synoptic diagram of the present invention's second preferred embodiment.
Embodiment
For being illustrated more clearly in the present invention, lift that preferred embodiment and conjunction with figs. specify as after.
Please cooperate Fig. 1, shown in 2; Periscopic camera lens 1 for the present invention's first preferred embodiment; It includes by thing side 110 to being image planes 111 and arranging the optical mirror slip that is provided with 10, first reflecting prism 21, the first mirror crowd 31, second reflecting prism 22, the second mirror crowd 32, the 3rd reflecting prism 23 and the 3rd mirror crowd 33 in regular turn along optical axis 100, and is image planes 111 in this and is provided with image sensor 40.Wherein:
Those reflecting prisms 21～23 have the characteristic that makes opticpath generation 90 write music and roll over.That is, this optical axis 100 is the ㄩ font with the complications that receive as shown in Figure 1 after receiving those reflecting prism 21～23 effects.In other words, this optical axis 100 is a 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 second reflecting prism 22 and the 3rd reflecting prism 23, and these second optical axis section, 102 vertical these primary optic axis sections 101; This optical axis 100 then is the 3rd optical axis section 103 between the 3rd reflecting prism 23 and this image sensor 40, and the 3rd optical axis section 103 vertical these second optical axis sections 102.By this, just can utilize the optical characteristics of those reflecting prisms 21～23 to reach the effect that in the finite space, prolongs the overall path length of this optical axis 100.
See also Fig. 1; This first mirror crowd 31 is positioned on this primary optic axis section 101, this second mirror crowd 32 is positioned on this second optical axis section 102, the 3rd mirror crowd 33 is positioned on the 3rd optical axis section 103, and those mirrors crowd 31～33 is driven respectively to move back and forth along those optical axis sections 101～103 by drive unit 50.In addition; Those mirrors crowd 31～33 prolongs the interval increasing that causes each other because of the overall path length of this optical axis 100; But make those mirrors crowd 31～33 actuating travel increase, i.e. thereupon expression, those mirrors crowd 31～33 attainable optical zoom multiplying powers are also thereby get a promotion.Must be noted that; In present embodiment, those mirrors crowd 31～33 utilizes single mirror crowd to be example, but not as limit; Also can use many arrangements of mirrors crowd to replace in the design, and those mirrors crowd 31～33 can be respectively single lens, plural lens, single compound lens or plural compound lens constitutes.
What deserves to be mentioned is; For avoiding making this periscopic camera lens 1 volume promote because of the path increase of optical axis 100; And then the situation that the design original meaning that causes 1 miniaturization of periscopic camera lens 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 supply focusing simultaneously in this accommodation space 60, optics covers or prevent the hand shake ... Wait the required control device of other function (figure slightly) to be provided with, the occupied space of composition assembly of this periscopic camera lens 1 is reduced; Use the overall volume that reduces this periscopic camera lens 1, and then reach the purpose of miniaturization.
In addition; Under the condition that does not cause this periscopic camera lens 1 volume to increase; Can as shown in Figure 3ly utilize three drive units 51～53 to drive this first mirror crowd 31, this second mirror crowd 32 and the 3rd mirror crowd 33 respectively; So that those mirrors crowd 31～33 has preferable displacement precision, use making that imaging effect is able to promote.
Comprehensively the above can be learnt; The overall path length of periscopic camera lens 1 of the present invention this optical axis 100 of prolongation not only capable of using; Reach the purpose that promotes the optical zoom multiplying power; More utilize required drive unit 50 is located at the design in the accommodation space 60, make periscopic camera lens 1 still can reach the design original meaning of miniaturization.
Except that said structure is provided with, below just can reach the overall path length purpose that prolongs optical axis again other method to set up describe:
See also Fig. 4, be the periscopic camera lens 2 of the present invention's second preferred embodiment, make the foregoing description difference be that the 3rd optical axis section 203 of optical axis 200 is tortuous for downwards.The benefit of this kind design is when other additional functions of this periscopic camera lens 2 increase, and reaches in second accommodation space 72 of the drive unit of additional function institute palpus and first accommodation space 71 that control device just can on average be arranged at the second optical axis section, 202 tops and the second optical axis section, 202 belows.Use and avoid drive unit or control device too to cause isolation each other low excessively, and then cause signal to produce and disturb the situation generation that makes that additional function or imaging effect are clear because of being provided with.
The above is merely several preferable possible embodiments of the present invention, and 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 claim of the present invention.
Claims (10)
1. a periscopic camera lens is characterized in that, it includes, and image planes arrange in regular turn to being along optical axis and by the thing side:
First reflecting prism;
At least one first mirror crowd;
Second reflecting prism;
At least one second mirror crowd;
The 3rd reflecting prism; And
At least one the 3rd mirror crowd;
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 crowd is positioned on this primary optic axis section; This optical axis is the second optical axis section between second reflecting prism and the 3rd reflecting prism, and this at least one second mirror crowd 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 the image planes in the 3rd reflecting prism and this, and this at least one the 3rd mirror crowd is positioned on the 3rd optical axis section, and vertical this second optical axis section of the 3rd optical axis section.
2. periscopic camera lens as claimed in claim 1 is characterized in that, more comprises drive unit, and this drive unit moves back and forth along this primary optic axis section in order to drive this first mirror crowd.
3. periscopic camera lens as claimed in claim 2 is characterized in that this drive unit is positioned at the accommodation space of these optical axis formation that section encloses.
4. periscopic camera lens as claimed in claim 1 is characterized in that, more comprises drive unit, and this drive unit moves back and forth along this second optical axis section in order to drive this second mirror crowd.
5. periscopic camera lens as claimed in claim 4 is characterized in that this drive unit is positioned at the accommodation space of these optical axis formation that section encloses.
6. periscopic camera lens as claimed in claim 1 is characterized in that, more comprises drive unit, and this drive unit moves back and forth along the 3rd optical axis section in order to drive the 3rd mirror crowd.
7. periscopic camera lens as claimed in claim 6 is characterized in that this drive unit is positioned at the accommodation space of these optical axis formation that section encloses.
8. periscopic camera lens as claimed in claim 1; It is characterized in that; More comprise drive unit; This drive unit moves back and forth along this primary optic axis section in order to drive this first mirror crowd respectively, and drives this second mirror crowd and move back and forth along this second optical axis section, and drives the 3rd mirror crowd and moves back and forth along the 3rd optical axis section.
9. periscopic camera lens as claimed in claim 8 is characterized in that this drive unit is positioned at the accommodation space of those optical axis formation that section encloses.
10. periscopic camera lens as claimed in claim 1 is characterized in that, more comprises at least one optical mirror slip, be positioned on this optical axis path, and than this first reflecting prism more near this thing side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281289 CN102385142B (en) | 2010-09-01 | 2010-09-01 | Periscope type lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010281289 CN102385142B (en) | 2010-09-01 | 2010-09-01 | Periscope type lens |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102385142A true CN102385142A (en) | 2012-03-21 |
| CN102385142B 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 | Periscope type lens |
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| CN (1) | CN102385142B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111474680A (en) * | 2020-05-13 | 2020-07-31 | Oppo广东移动通信有限公司 | Optical lens, camera module and electronic device |
| CN112532815A (en) * | 2019-09-18 | 2021-03-19 | 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 |
Citations (3)
| 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 |
| US20050088562A1 (en) * | 2003-10-27 | 2005-04-28 | Canon Kabushiki Kaisha | Optical 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 |
-
2010
- 2010-09-01 CN CN 201010281289 patent/CN102385142B/en active Active
Patent Citations (3)
| 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 |
| US20050088562A1 (en) * | 2003-10-27 | 2005-04-28 | Canon Kabushiki Kaisha | Optical 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 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN112532815A (en) * | 2019-09-18 | 2021-03-19 | 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 lens, camera module and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102385142B (en) | 2013-06-05 |
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