CN101105567A - Lens and method for regulating lens eccentricity - Google Patents
Lens and method for regulating lens eccentricity Download PDFInfo
- Publication number
- CN101105567A CN101105567A CNA2006100988134A CN200610098813A CN101105567A CN 101105567 A CN101105567 A CN 101105567A CN A2006100988134 A CNA2006100988134 A CN A2006100988134A CN 200610098813 A CN200610098813 A CN 200610098813A CN 101105567 A CN101105567 A CN 101105567A
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- lens barrel
- lens
- eyeglass
- optical axis
- offset
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Abstract
The invention provides a camera lens and a method regulating the lens eccentricity; the camera lens in the invention comprises a first lens cylinder, a second lens cylinder and a fixing device; wherein the first lens cylinder can contain at least one first lens, which has a first optical axle; the second lens cylinder can contain at least one second lens, which has a second optical axle; the first lens cylinder is equipped on the second lens cylinder; under the condition that the first lens cylinder is rotated, the eccentric quantity of the first optical axle and the second optical axle can be converged to be within a preset tolerance value; furthermore, the first lens cylinder and the second lens cylinder can be fixed with each other by the fixing device.
Description
Technical field
The invention relates to the method for a kind of camera lens and adjustment lens eccentricity, especially about camera lens of forming by two lens barrels and the method for adjusting lens eccentricity.
Background technology
Because projector belongs to high-accuracy optical, mechanical and electronic integration product, require on the market its external form must be very thin short and small and its throw under brightness and resolution also must improve, cause the eyeglass quantity of projector's inner lens to improve relatively.Yet each eyeglass of projector's inner lens is when assembling, and the optics precision of whole camera lens is very responsive to each eyeglass offset that optical axis deviation produced each other, to such an extent as to the offset of each eyeglass badly influences the quality of its projection.In general, in case when optical axis has eccentricity issues to take place between eyeglass in the camera lens, must work as benchmark with wherein an eyeglass is fixing in the camera lens, go to rotate the error that another eyeglass is corrected its optical axis, this one moves and is commonly referred to as " accent core ".
General projector can be divided into pre-projecting type (FrontProjection) and back projection type (Rear Projection) according to the direction of ray cast.The susceptibility (such as the optical axis eccentricity issues between each eyeglass) of eyeglass assembling is high than the assembling susceptibility of pre-projecting type projector in the back projecting projector, and wherein the back group's camera lens in the back reflection projector for optical axis off-centre sensitivity especially.Therefore, when manufacturer when producing back projecting projector, the assembling of each eyeglass and transfer core difficult problem often in its camera lens.
Fig. 1 promptly shows back group's camera lens 100 of the back reflection projector of a prior art, and it can hold the plural pieces eyeglass.In the prior art, when camera lens 100 when assembling, if when the offset of wherein a slice eyeglass that it held is excessive, the reorganization of promptly all eyeglasses in the whole camera lens must being dismantled all, and then adjust the problem that eyeglass is handled optical axis off-centre one by one.This measure causes the scrapping of maintenance consuming time and eyeglass (as the eyeglass scratch etc.) to produce easily, and can influence the precision of whole camera lens.In addition, if add the in-built complicacy of projector itself, will make projector's inner lens optical axis offset problem become a great problem that manufacturer will face.
Therefore, really be necessary to provide a kind of camera lens and a kind of method of adjusting lens eccentricity, when particularly having most eyeglass in camera lens, can reduce the time of camera lens being installed and transferring core, the consuming time and eyeglass of maintenance such as scraps at problem in the time of effectively solving lens eccentricity simultaneously.
Summary of the invention
The objective of the invention is is providing a kind of camera lens that can simple and easyly transfer core, with and core regulating method, can reduce the time of camera lens being installed and transferring core, the consuming time and eyeglass of maintenance such as scraps at problem in the time of effectively solving lens eccentricity simultaneously.
For reaching above-mentioned purpose, the present invention at first provides a kind of camera lens, it is characterized in that, comprising:
One first lens barrel, ccontaining at least one first eyeglass of this first lens barrel, this at least one first eyeglass has a primary optic axis;
One second lens barrel, ccontaining at least one second eyeglass of this second lens barrel, this at least one second eyeglass has one second optical axis, and this first lens barrel is arranged on this second lens barrel, by this first lens barrel of rotation, an offset of this primary optic axis and this second optical axis is converged in the predetermined tolerance value; And
One stationary installation, this stationary installation are fixed this first lens barrel and this second lens barrel.
Wherein this stationary installation is to be a set collar.
Wherein this camera lens is a back projection camera lens.
Wherein this camera lens is back group's camera lens of a back projection camera lens.
Wherein this second lens barrel is fixed on the bearing.
The invention provides a kind of method of adjusting lens eccentricity, it is characterized in that, this method comprises the following steps:
Provide one first lens barrel and one second lens barrel to form a camera lens, ccontaining at least one first eyeglass of this first lens barrel wherein, this at least one first eyeglass has a primary optic axis, and this second lens barrel ccontaining one at least one second eyeglass, and this at least one second eyeglass has one second optical axis;
This first lens barrel is arranged on this second lens barrel;
Rotate this first lens barrel, make an offset of this primary optic axis and this second optical axis converge in the predetermined tolerance value; And
One stationary installation is provided, and fixes this first lens barrel and this second lens barrel with this stationary installation.
Wherein in the step of this stationary installation is provided, provide a set collar to fix this first lens barrel and this second lens barrel.
Wherein when this first lens barrel and this second lens barrel is fixed and this offset of this primary optic axis and this second optical axis during greater than this predetermined tolerance value, further comprise the following steps:
Unclamp this first lens barrel and this second lens barrel;
Rotate this first lens barrel, make this offset of this primary optic axis and this second optical axis converge in this predetermined tolerance value; And
Fix this first lens barrel and this second lens barrel.
Wherein further comprise the following steps: this second lens barrel is fixed on the bearing.
Wherein make this offset of this primary optic axis and this second optical axis converge in the step in this predetermined tolerance value, further comprise the following steps: at this first lens barrel of rotation
This second optical axis is used as a benchmark, adjusts this offset of this primary optic axis and this second optical axis to rotate this first lens barrel;
One eccentric microscope is provided, and observes the anglec of rotation when this offset reaches maximum with this off-centre microscope; And
This first lens barrel is rotated to a pair of corner degree of this anglec of rotation, so that this offset converges in this predetermined tolerance value.
Description of drawings
For above and other objects of the present invention, feature and advantage can be become apparent, down especially exemplified by going out preferred embodiment, and conjunction with figs., be described in detail below, wherein:
Fig. 1 is the lens construction synoptic diagram of prior art.
Fig. 2 A is the decomposition Li Tutu of the camera lens of one embodiment of the invention.
Fig. 2 B is the configuration schematic diagram of the camera lens of one embodiment of the invention.
Fig. 3 is the flow chart of steps of the method for adjustment lens eccentricity of the present invention.
Embodiment
Following embodiment will illustrate with back group's lens assembly of back projection camera lens, because generally the assembling susceptibility of back projection camera lens is than front projection camera lens height, and the eccentricity of glasses lens of the back group's lens assembly in the back projection camera lens is responsive especially.Simultaneously, following embodiment will with Liquiid crystal on silicon (lcos) display (Liquid Crystal onSillicon, LCoS) the back group lens assembly of back projection camera lens totally nine eyeglasses illustrate.Yet, be noted that, the present invention not with LCoS back projection camera lens or thereafter group lens assembly exceed, the present invention also can be applicable on the camera lens of digital camera, camera cell phone or other electronic installation, and the eyeglass that the present invention comprised does not also exceed with nine.
At first, please in the lump with reference to figure 2A and Fig. 2 B about camera lens of the present invention.Wherein, Fig. 2 A is the exploded perspective view of camera lens of the present invention; Fig. 2 B is the configuration schematic diagram of camera lens of the present invention.
Shown in Fig. 2 A and Fig. 2 B, camera lens 1 of the present invention comprises first lens barrel 10, second lens barrel 20 and stationary installation 50.Wherein, first lens barrel 10 can supply ccontaining at least one first eyeglass 30, and this at least one first eyeglass 30 has primary optic axis 31.Second lens barrel 20 can supply ccontaining at least one second eyeglass 40, and this at least one second eyeglass 40 has second optical axis 41.In the present embodiment, at least one first eyeglass 30 is to be four eyeglasses, and at least one second eyeglass 40 is to be five eyeglasses.Yet, be noted that herein at least one first eyeglass 30 of the present invention is not to be defined as four eyeglasses; Similarly, at least one second eyeglass 40 is also non-only is defined as five eyeglasses.
Shown in Fig. 2 B, an end of first lens barrel 10 has a convex structure, and an end of second lens barrel has a concave structure.The present invention plants concaveconvex structure thus, first lens barrel 10 is leaned on each other mutually with second lens barrel 20, and can make the rotational slide on second lens barrel 20 of first lens barrel 10.Yet, be noted that camera lens 1 of the present invention does not exceed with this kind concaveconvex structure, the present invention can utilize any make first lens barrel 10 and second lens barrel 20 each other mutually by and the structure of rotational slide.
Shown in Fig. 2 B, because second lens barrel 20 is arranged on the bearing 60, and first lens barrel 10 is arranged on second lens barrel 20 and rotatable slip, therefore in the time will carrying out the accent core of camera lens 1, the present invention is to be benchmark with second lens barrel 20, by rotation first lens barrel 10, so that the offset of second optical axis 41 that the primary optic axis 31 that at least one first eyeglass 30 is had and at least one second eyeglass 40 are had converges in the predetermined tolerance value.Simultaneously, in the time of in the offset of the primary optic axis 31 and second optical axis 41 has converged to predetermined tolerance value, the present invention can be fixed to one another firmly with first lens barrel 10 and second lens barrel 20 by stationary installation 50.
In one embodiment of this invention, stationary installation 50 is a set collar 50, but the present invention is as limit, and stationary installation 50 also can be fastener (figure shows) or other similar stationary installation (such as rubber grommet).Simultaneously,, can not only adjust primary optic axis 31 and second optical axis, 41 off-center (Decenter) offset, also can adjust the offset of its inclination (Tilt) by camera lens 1 of the present invention.
In addition, the present invention provides a kind of method of adjusting lens eccentricity in addition.Below please refer to the flow chart of steps of Fig. 3 about the method for adjustment lens eccentricity of the present invention.
As shown in Figure 3, the present invention at first carries out step S31, and first lens barrel 10 and second lens barrel 20 shown in Fig. 2 A and 2B are provided, to form camera lens 1.Wherein, first lens barrel 10 can supply ccontaining at least one first eyeglass 30, and this at least one first eyeglass 30 has primary optic axis 31.Second lens barrel 20 can supply ccontaining at least one second eyeglass 40, and this at least one second eyeglass 40 has second optical axis 41.
Then, the present invention carries out step S32, and first lens barrel 10 is arranged on second lens barrel 20.In step S32, the present invention is arranged on second lens barrel 20 on the bearing 60 earlier, and then first lens barrel 10 is arranged on second lens barrel 20.
Then, carry out step S33, rotate first lens barrel 10, so that the offset of the primary optic axis 31 and second optical axis 41 converges in the predetermined tolerance value.In one embodiment of this invention, step S33 can further comprise step S331 to S333, below will further describe.
At first, the present invention carries out step S331, is that benchmark rotates first lens barrel 30 with second optical axis 41, to adjust the offset of the primary optic axis 31 and second optical axis 41.Because second lens barrel 20 is arranged on the bearing 60, and first lens barrel 10 is to be arranged on second lens barrel 20 and rotatable slip, therefore in step S331, the present invention is used as the benchmark optical axis with second optical axis 41, adjusts the offset of the primary optic axis 31 and second optical axis 41 by rotation first lens barrel 10.
Then, the present invention carries out step S332, the anglec of rotation when reaching maximum with eccentric microscopic examination offset.At step S332, the present invention is the offset of primary optic axis 31 and second optical axis 41 when being observed first lens barrel 10 and rotated by an eccentric microscope, the anglec of rotation the when offset of particularly observing the primary optic axis 31 and second optical axis 41 reaches maximum.
Then, after the anglec of rotation when offset that eccentric microscope has been observed the primary optic axis 31 and second optical axis 41 reaches maximum, the present invention promptly carries out step S333, first lens barrel 10 is rotated to the opposite side angle of this anglec of rotation.So, the offset of the primary optic axis 31 and second optical axis is converged in the predetermined tolerance value.
After the completing steps S33, the present invention then carries out step S34, and the stationary installation 50 shown in Fig. 2 A and Fig. 2 B is provided, and fixes first lens barrel 10 and second lens barrel 20 with stationary installation 50, and finishes the accent core operation of camera lens 1.
In addition, when camera lens 1 uses or other factors when making the offset of its optical axis greater than predetermined tolerance value through permanent, the present invention can further carry out step S35, stationary installation 50 is untied, so that first lens barrel 10 is by being changed into the situation of rotational slide freely by closely fixing situation with second lens barrel 20.So, can proceed step S33 and step S34, so that the offset of the primary optic axis 31 and second optical axis converges in the predetermined tolerance value.
In sum, no matter the present invention all is different from the feature of known technology with regard to purpose, means and effect, so propose patented claim in accordance with the law.Only it should be noted that above-mentioned many embodiment give an example for convenience of explanation, the interest field that the present invention advocated should be as the criterion so that claim is described certainly, but not only limits to the foregoing description.
Claims (10)
1. a camera lens is characterized in that, comprising:
One first lens barrel, ccontaining at least one first eyeglass of this first lens barrel, this at least one first eyeglass has a primary optic axis;
One second lens barrel, ccontaining at least one second eyeglass of this second lens barrel, this at least one second eyeglass has one second optical axis, and this first lens barrel is arranged on this second lens barrel, by this first lens barrel of rotation, an offset of this primary optic axis and this second optical axis is converged in the predetermined tolerance value; And
One stationary installation, this stationary installation are fixed this first lens barrel and this second lens barrel.
2. as claim 1 a described camera lens, it is characterized in that wherein this stationary installation is to be a set collar.
3. as claim 1 a described camera lens, it is characterized in that wherein this camera lens is a back projection camera lens.
4. as claim 1 a described camera lens, it is characterized in that wherein this camera lens is back group's camera lens of a back projection camera lens.
5. as claim 1 a described camera lens, it is characterized in that wherein this second lens barrel is fixed on the bearing.
6. a method of adjusting lens eccentricity is characterized in that, this method comprises the following steps:
Provide one first lens barrel and one second lens barrel to form a camera lens, ccontaining at least one first eyeglass of this first lens barrel wherein, this at least one first eyeglass has a primary optic axis, and this second lens barrel ccontaining one at least one second eyeglass, and this at least one second eyeglass has one second optical axis;
This first lens barrel is arranged on this second lens barrel;
Rotate this first lens barrel, make an offset of this primary optic axis and this second optical axis converge in the predetermined tolerance value; And
One stationary installation is provided, and fixes this first lens barrel and this second lens barrel with this stationary installation.
7. as claim 6 a described method, it is characterized in that, wherein in the step of this stationary installation is provided, provide a set collar to fix this first lens barrel and this second lens barrel.
8. as claim 6 or the 7th described method, it is characterized in that,, further comprise the following steps: wherein when this first lens barrel and this second lens barrel is fixed and this offset of this primary optic axis and this second optical axis during greater than this predetermined tolerance value
Unclamp this first lens barrel and this second lens barrel;
Rotate this first lens barrel, make this offset of this primary optic axis and this second optical axis converge in this predetermined tolerance value; And
Fix this first lens barrel and this second lens barrel.
9. as claim 6 or 7 described methods, it is characterized in that, wherein further comprise the following steps: this second lens barrel is fixed on the bearing.
10. as claim 6 or 7 described methods, it is characterized in that, wherein make this offset of this primary optic axis and this second optical axis converge in the step in this predetermined tolerance value, further comprise the following steps: at this first lens barrel of rotation
This second optical axis is used as a benchmark, adjusts this offset of this primary optic axis and this second optical axis to rotate this first lens barrel;
One eccentric microscope is provided, and observes the anglec of rotation when this offset reaches maximum with this off-centre microscope; And
This first lens barrel is rotated to a pair of corner degree of this anglec of rotation, so that this offset converges in this predetermined tolerance value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100988134A CN101105567A (en) | 2006-07-11 | 2006-07-11 | Lens and method for regulating lens eccentricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006100988134A CN101105567A (en) | 2006-07-11 | 2006-07-11 | Lens and method for regulating lens eccentricity |
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| Publication Number | Publication Date |
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| CN101105567A true CN101105567A (en) | 2008-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2006100988134A Pending CN101105567A (en) | 2006-07-11 | 2006-07-11 | Lens and method for regulating lens eccentricity |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846786A (en) * | 2009-03-27 | 2010-09-29 | 杰西迪光学有限公司 | Aligning device of zoom lens tube |
| CN106019559A (en) * | 2016-06-24 | 2016-10-12 | 尚艳燕 | Observation lens |
| CN108693683A (en) * | 2017-04-07 | 2018-10-23 | 宁波舜宇光电信息有限公司 | Camera module based on infrared absorption lens construction and its application |
| WO2019047534A1 (en) * | 2017-09-11 | 2019-03-14 | 宁波舜宇光电信息有限公司 | Camera module and assembly method therefor |
| CN110542966A (en) * | 2019-06-23 | 2019-12-06 | 江苏同胜光电科技有限公司 | Lens aligning device |
| CN111090159A (en) * | 2018-10-24 | 2020-05-01 | 宁波舜宇光电信息有限公司 | Optical lens, camera module, assembling method of camera module and corresponding terminal equipment |
-
2006
- 2006-07-11 CN CNA2006100988134A patent/CN101105567A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101846786A (en) * | 2009-03-27 | 2010-09-29 | 杰西迪光学有限公司 | Aligning device of zoom lens tube |
| CN106019559A (en) * | 2016-06-24 | 2016-10-12 | 尚艳燕 | Observation lens |
| CN108693683A (en) * | 2017-04-07 | 2018-10-23 | 宁波舜宇光电信息有限公司 | Camera module based on infrared absorption lens construction and its application |
| CN111034169A (en) * | 2017-09-11 | 2020-04-17 | 宁波舜宇光电信息有限公司 | Camera module and assembling method thereof |
| CN109495672A (en) * | 2017-09-11 | 2019-03-19 | 宁波舜宇光电信息有限公司 | Camera module and its assemble method |
| WO2019047534A1 (en) * | 2017-09-11 | 2019-03-14 | 宁波舜宇光电信息有限公司 | Camera module and assembly method therefor |
| KR20200042493A (en) * | 2017-09-11 | 2020-04-23 | 닝보 써니 오포테크 코., 엘티디. | Camera module and assembly method |
| CN111034169B (en) * | 2017-09-11 | 2021-09-21 | 宁波舜宇光电信息有限公司 | Camera module and assembling method thereof |
| KR102321746B1 (en) * | 2017-09-11 | 2021-11-05 | 닝보 써니 오포테크 코., 엘티디. | Camera module and its assembly method |
| US11506857B2 (en) * | 2017-09-11 | 2022-11-22 | Ningbo Sunny Opotech Co., Ltd. | Camera module and assembly method therefor |
| CN109495672B (en) * | 2017-09-11 | 2023-06-02 | 宁波舜宇光电信息有限公司 | Camera module and assembling method thereof |
| US11774698B2 (en) | 2017-09-11 | 2023-10-03 | Ningbo Sunny Opotech Co., Ltd. | Camera module and method for assembling same |
| CN111090159A (en) * | 2018-10-24 | 2020-05-01 | 宁波舜宇光电信息有限公司 | Optical lens, camera module, assembling method of camera module and corresponding terminal equipment |
| CN111090159B (en) * | 2018-10-24 | 2021-10-29 | 宁波舜宇光电信息有限公司 | Optical lens, camera module, assembling method of camera module and corresponding terminal equipment |
| CN110542966A (en) * | 2019-06-23 | 2019-12-06 | 江苏同胜光电科技有限公司 | Lens aligning device |
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