CN107797220B - Lens focusing apparatus and telephoto lens module thereof - Google Patents
Lens focusing apparatus and telephoto lens module thereof Download PDFInfo
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- CN107797220B CN107797220B CN201610808730.3A CN201610808730A CN107797220B CN 107797220 B CN107797220 B CN 107797220B CN 201610808730 A CN201610808730 A CN 201610808730A CN 107797220 B CN107797220 B CN 107797220B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
Abstract
The invention discloses a lens focusing device and a telephoto lens module thereof. The lens focusing device comprises a lens clamping module, a chart display module and a telephoto lens module. The lens clamping module clamps at least one lens to be tested. The chart display module comprises a chart frame structure, a first chart display assembly and a plurality of second chart display assemblies. The telephoto lens module includes a first telephoto lens and a plurality of second telephoto lenses. The first telephoto lens is arranged between the lens to be measured and the first chart display component to shorten the distance between the first chart display component and the lens to be measured. Each second telephoto lens is arranged between the lens to be measured and the corresponding second chart display component so as to shorten the distance between the second chart display component and the lens to be measured. Therefore, the invention can effectively reduce the overall height of the lens focusing equipment.
Description
Technical Field
The present invention relates to a focusing apparatus and a lens module thereof, and more particularly, to a lens focusing apparatus and a telephoto lens module thereof.
Background
The existing manual focusing measuring instrument is generally provided with a manual focusing device, an operator obtains a clear image of an object to be measured by adjusting the manual focusing device, and the measuring instrument has the characteristics of simple structure and low cost, but lacks the stability and reliability of a system, the definition of the image can be only identified by human eyes in the focusing process, and different operators have different identifications of the same image definition, so that the same image may need to be repeatedly measured. In the process of measuring the workpiece, the definition of the image directly affects the accuracy of image focusing, and further affects the accuracy of the image measurement result. Therefore, the prior art provides an image focusing display system, which displays the definition of the current image in real time by using a curve graph in the manual focusing process, thereby improving the accuracy of image focusing and avoiding repeated measurement of different operators on the same image.
However, the detection optical path adopted by the manual focusing device in the prior art is too complicated in design, so that the optical path is too long and the overall height of the manual focusing device cannot be reduced.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a lens focusing apparatus and a telephoto lens module thereof, aiming at the deficiencies of the prior art.
In order to solve the above technical problems, one of the technical solutions of the present invention is to provide a lens focusing apparatus, which includes a lens holding module, a chart display module, and a telephoto lens module. The lens clamping module clamps at least one lens to be tested. The chart display module includes a chart frame structure, a first chart display assembly disposed on the chart frame structure, and a plurality of second chart display assemblies disposed on the chart frame structure, wherein each of the second chart display assemblies is inclined at a first predetermined angle relative to the first chart display assembly. The telephoto lens module includes a lens frame structure, a first telephoto lens disposed on the lens frame structure, and a plurality of second telephoto lenses disposed on the lens frame structure, wherein each of the second telephoto lenses is tilted by a second predetermined angle with respect to the first telephoto lens. The first telephoto lens is arranged between at least one lens to be detected and the first chart display assembly, and each second telephoto lens is arranged between at least one lens to be detected and the corresponding second chart display assembly.
Further, the chart frame structure comprises a first chart frame and a plurality of second chart frames which are respectively fixedly or adjustably arranged on the first chart frame.
Further, the first chart frame includes a first frame and a plurality of first clamping members disposed on the first frame, and each of the second chart frames includes a second frame fixedly or adjustably disposed on the first frame and a plurality of second clamping members disposed on the second frame.
Further, the first chart display assembly is clamped by the plurality of first clamping pieces of the first chart frame to be positioned on the first frame body, and each second chart display assembly is clamped by the plurality of second clamping pieces of the corresponding second chart frame to be positioned on the corresponding second frame body.
Still further, each of the second frames includes at least two extension arms fixedly or adjustably disposed on the first frame, and each of the second chart display assemblies is clamped by a plurality of second clamping members of the corresponding second chart frame to be positioned between at least two extension arms of the corresponding second frame.
Furthermore, the first clamping piece is provided with a first fixing part fixed on the first frame body, a first limiting part extending out from the first fixing part and limiting the position of the first chart display assembly, and a first abutting part connected to the first limiting part and abutting against the first chart display assembly, and the second clamping piece is provided with a second fixing part fixed on the second frame body, a second limiting part extending out from the second fixing part and limiting the position of the second chart display assembly, and a second abutting part connected to the second limiting part and abutting against the second chart display assembly.
Furthermore, the lens frame structure includes a first lens frame and a plurality of second lens frames disposed on the first lens frame in a surrounding manner, the first telephoto lens passes through a first through hole of the first lens frame, and each of the second telephoto lenses passes through a second through hole of the corresponding second lens frame.
Furthermore, a first chart image presented by the first chart display component sequentially passes through the first telephoto lens and the at least one lens to be detected to form a first corrected image beam projected on an image sensing component.
Furthermore, a second chart image presented by each second chart display element sequentially passes through the corresponding second telephoto lens and the at least one lens to be tested to form a second correction image beam projected on an image sensing element.
Furthermore, the first predetermined angle θ 1 by which each of the second chart display elements is tilted with respect to the first chart display element, the second predetermined angle θ 2 by which each of the second telephoto lenses is tilted with respect to the first telephoto lens, and a relationship between the first predetermined angle θ 1 and the second predetermined angle θ 2 satisfies the following relationship: θ 1+ θ 2 ≈ 180 degrees.
In order to solve the above technical problem, another technical solution of the present invention is to provide a lens focusing apparatus, which includes a lens holding module, a chart display module, and a telephoto lens module. The lens clamping module clamps at least one lens to be tested. The chart display module comprises a first chart display assembly and a plurality of second chart display assemblies, wherein each second chart display assembly is inclined relative to the first chart display assembly by a first preset angle. The telephoto lens module includes a first telephoto lens and a plurality of second telephoto lenses, wherein each of the second telephoto lenses is inclined at a second predetermined angle with respect to the first telephoto lens. The first telephoto lens is arranged between at least one lens to be detected and the first chart display assembly, and each second telephoto lens is arranged between at least one lens to be detected and the corresponding second chart display assembly.
Furthermore, the telephoto lens module further includes a lens frame structure, the lens frame structure includes a first lens frame and a plurality of second lens frames circumferentially disposed on the first lens frame, the first telephoto lens passes through a first through hole of the first lens frame to be positioned on the first lens frame, and each of the second telephoto lenses passes through a second through hole of the corresponding second lens frame to be positioned on the second lens frame.
In order to solve the above technical problem, another technical solution of the present invention is to provide a telephoto lens module, which includes a lens frame structure, a first telephoto lens, and a plurality of second telephoto lenses. The first telephoto lens is disposed on the lens frame structure and corresponds to a first chart display assembly. The plurality of second telephoto lenses are arranged on the lens frame structure and respectively correspond to the plurality of second chart display components, wherein each second telephoto lens is inclined to the first telephoto lens.
Furthermore, the lens frame structure includes a first lens frame and a plurality of second lens frames disposed on the first lens frame in a surrounding manner, the first telephoto lens passes through a first through hole of the first lens frame, and each of the second telephoto lenses passes through a second through hole of the corresponding second lens frame.
The lens focusing device and the telephoto lens module thereof provided by the embodiment of the invention have the beneficial effects that the lens focusing device can shorten the distance between the first chart display component and the at least one lens to be tested and shorten the distance between the second chart display component and the at least one lens to be tested by matching the first telephoto lens and the plurality of second telephoto lenses through the design that the first telephoto lens is arranged between the at least one lens to be tested and the first chart display component and each second telephoto lens is arranged between the at least one lens to be tested and the corresponding second chart display component, thereby effectively reducing the overall height of the lens focusing device.
For a better understanding of the features and technical content of the present invention, reference should be made to the following detailed description of the invention and accompanying drawings, which are provided for purposes of illustration and description only and are not intended to limit the invention.
Drawings
Fig. 1 is a schematic side view of a lens focusing apparatus according to an embodiment of the present invention.
Fig. 2 is a schematic perspective view of a lens focusing apparatus according to an embodiment of the present invention.
Fig. 3 is a perspective view of a telephoto lens module of a lens focusing apparatus according to an embodiment of the present invention.
Fig. 4 is a perspective view of a viewing angle of a chart display module of a lens focusing apparatus according to another embodiment of the invention.
Fig. 5 is a perspective view illustrating another viewing angle of a chart display module of a lens focusing apparatus according to another embodiment of the present invention.
Fig. 6 is a perspective view illustrating a diagram frame structure of a diagram display module of a lens focusing apparatus according to another embodiment of the present invention.
Fig. 7 is a side view schematically illustrating a first frame of a chart frame structure of a chart display module of a lens focusing apparatus according to another embodiment of the present invention.
Fig. 8 is a side view schematically illustrating a second frame of a chart frame structure of a chart display module of a lens focusing apparatus according to another embodiment of the present invention.
Fig. 9 is a schematic side cross-sectional view illustrating another graph display module used in a lens focusing apparatus according to another embodiment of the present invention.
Detailed Description
The following is a description of the embodiments of the "lens focusing apparatus and its telephoto lens module" disclosed in the present invention by specific embodiments, and those skilled in the art can understand the advantages and effects of the present invention from the disclosure in this specification. The invention is capable of other and different embodiments and its several details are capable of modification in various other respects, all without departing from the spirit and scope of the present invention. The drawings of the present invention are for illustrative purposes only and are not drawn to scale. The following embodiments will further explain the related art of the present invention in detail, but the disclosure is not intended to limit the scope of the present invention. The following embodiments are disclosed with reference to fig. 1 to 9.
Referring to fig. 1 to 3, an embodiment of the invention provides a lens focusing apparatus Z, which includes a lens holding module 1, a chart display module 2, and a telephoto lens module 3.
First, as shown in fig. 1, the lens holding module 1 can be used to hold at least one lens W to be tested. For example, the at least one lens W to be measured may be a non-wide-angle lens, a wide-angle lens or an ultra-wide-angle lens. In addition, the lens holding module 1 may be a six-axis optical adjusting mechanism with a six-axis direction adjusting function, wherein the six-axis direction adjustment may include an X-axis direction adjustment, a Y-axis direction adjustment, a Z-axis direction adjustment, a spin angle adjustment, a front-back deflection angle adjustment, a left-right deflection angle adjustment, and the like, but the lens holding module 1 of the present invention is not limited to this example.
In addition, referring to fig. 1 and 2, the graph display module 2 includes a graph frame structure 20, a first graph display assembly 21 disposed on the graph frame structure 20, and a plurality of second graph display assemblies 22 disposed on the graph frame structure 20, and each of the second graph display assemblies 22 is inclined by a first predetermined angle θ 1 with respect to the first graph display assembly 21. For example, the first chart displaying component 21 and the plurality of second chart displaying components 22 are replaceable backlit charts, thereby increasing the convenience of the user when focusing the lens. In addition, the chart frame structure 20 may include a first chart frame 201 and a plurality of second chart frames 202 fixedly disposed on the first chart frame 201, respectively. However, the diagram frame structure 20, the first diagram displaying component 21 and the second diagram displaying component 22 of the present invention are not limited to this example.
Further, as shown in fig. 1 to 3, the telephoto lens module 3 includes a lens frame structure 30, a first telephoto lens 31 (i.e., a first telephoto lens) disposed on the lens frame structure 30, and a plurality of second telephoto lenses 32 (i.e., second telephoto lenses) disposed on the lens frame structure 30, and each of the second telephoto lenses 32 is inclined by a second predetermined angle θ 2 with respect to the first telephoto lens 31. In addition, a first telephoto lens 31 is disposed between at least one lens W to be measured and the first image display unit 21, and each second telephoto lens 32 is disposed between at least one lens W to be measured and the corresponding second image display unit 22. For example, as shown in fig. 3, the lens frame structure 30 includes a first lens frame 301 and a plurality of second lens frames 302 circumferentially disposed on the first lens frame 301. In addition, the first telephoto lens 31 may be positioned on the first lens frame 301 of the lens frame structure 30 through a first through hole 3010 penetrating through the first lens frame 301, and each of the second telephoto lenses 32 may be positioned on the second lens frame 302 of the lens frame structure 30 through a second through hole 3020 penetrating through the corresponding second lens frame 302. However, the lens frame structure 30 of the present invention is not limited to this example.
It should be noted that, as shown in fig. 1, a first predetermined angle θ 1 is defined by each second chart display element 22 relative to the first chart display element 21, a second predetermined angle θ 2 is defined by each second telephoto lens 32 relative to the first telephoto lens 31, and a relationship between the first predetermined angle θ 1 and the second predetermined angle θ 2 satisfies the following relationship: θ 1+ θ 2 ≈ 180 degrees. That is, the first predetermined angle θ 1 and the second predetermined angle θ 2 are in a complementary relationship.
Thus, with reference to fig. 1 and fig. 2, a first chart image displayed by the first chart display element 21 sequentially passes through the first telephoto lens 31 and the at least one lens W to be measured, so as to form a first corrected image beam L1 projected on an image sensing element S. In addition, a second chart image displayed by each second chart display element 22 sequentially passes through the corresponding second telephoto lens 32 and the at least one lens W to be measured, so as to form a second corrected image light beam L2 projected on the same image sensing element S. Therefore, the lens focusing apparatus Z of the present invention can focus at least one lens W to be measured by the first corrected image beam L1 and the second corrected image beam L2 captured by the image sensing assembly S.
It is to be noted that, as shown in fig. 1, the lens focusing apparatus Z of the present invention can shorten the distance (or optical path distance) between the first chart displaying component 21 and at least one lens W to be measured by the use of the first telephoto lens 31, and can shorten the distance (or optical path distance) between the second chart displaying component 22 and at least one lens W to be measured by the use of the second telephoto lens 32, thereby effectively reducing the overall height of the lens focusing apparatus Z. That is, the present invention uses the first telephoto lens 31 and the plurality of second telephoto lenses 32 to reduce the optical path between the chart display module 2 and at least one lens W to be measured, thereby effectively reducing the overall height of the lens focusing apparatus Z and achieving the purpose of miniaturizing the lens focusing apparatus Z. Therefore, the invention can utilize the invention of the miniaturized lens focusing device Z to achieve the finished product of at least one lens W to be tested at infinity. It should be noted that, since the lens focusing apparatus Z of the present invention can provide a wide field of view (FOV), at least one lens W to be tested, which is tested by the lens focusing apparatus Z of the present invention, can achieve full-view image quality.
Furthermore, referring to fig. 4 and 5, in another embodiment of the present invention, the chart display module 2 includes a chart frame structure 20, a first chart display component 21 detachably disposed on the chart frame structure 20, and a plurality of second chart display components 22 detachably disposed on the chart frame structure 20. Therefore, the first chart display assembly 21 and the plurality of second chart display assemblies 22 are all replaceable backlight charts, so that convenience for a user in focusing the lens is improved. It should be noted that the first graphical display module 21 and the plurality of second graphical display modules 22 may be replaced at the same time.
More specifically, referring to fig. 4, 5 and 6, the chart frame structure 20 includes a first chart frame 201 and a plurality of second chart frames 202 respectively fixedly or adjustably disposed on the first chart frame 201. It should be noted that fig. 1 to 8 disclosed in the present invention are described by taking an example of "a plurality of second chart frames 202 are respectively fixedly disposed on the first chart frame 201", but this example is not intended to limit the present invention. For example, a pivot structure may be designed between the first chart frame 201 and the second chart frame 202, that is, the second chart frame 202 may be pivotally disposed on the first chart frame 201 through the pivot structure, so that a user may adjust a tilt angle of the second chart frame 202 relative to the first chart frame 201 according to different usage requirements.
As described above, with reference to fig. 4, 5 and 6, the first chart frame 201 includes a first frame 2011 and a plurality of first holders 2012 disposed on the first frame 2011, and each of the second chart frames 202 includes a second frame 2021 fixedly (or adjustably) disposed on the first frame 2011 and a plurality of second holders 2022 disposed on the second frame 2021. More specifically, the first frame 2011 has a plurality of side portions 20111, and the second frames 2021 are respectively fixedly (or adjustably) disposed on the side portions 20111 of the first frame 2011. Thereby, as shown in fig. 4 or fig. 5, the first chart displaying component 21 can be clamped by the plurality of first clamping members 2012 of the first chart frame 201 to be positioned on the first frame 2011, and each second chart displaying component 22 can be clamped by the plurality of second clamping members 2022 of the corresponding second chart frame 202 to be positioned on the corresponding second frame 2021.
For example, as shown in fig. 4 or fig. 6, each second frame 2021 includes at least two extension arms (2021A, 2021B) fixedly (or adjustably) disposed on the first frame 2011, and each second chart displaying assembly 22 can be clamped by the plurality of second clamping members 2022 of the corresponding second chart frame 202 to be positioned between the at least two extension arms (2021A, 2021B) of the corresponding second frame 2021. However, the second frame 2021 of the present invention is not limited thereto.
For example, as shown in fig. 6 and 7, the first clamping member 2012 of the first chart frame 201 has a first fixing portion 2012A fixed on the first frame 2011, a first position-limiting portion 2012B extending from the first fixing portion 2012A and limiting the position of the first chart displaying component 21, and a first pressing portion 2012C connected to the first position-limiting portion 2012B and pressing against the first chart displaying component 21. That is to say, the first chart displaying component 21 can obtain a better positioning effect by the cooperation of the first limiting portion 2012B and the first pressing portion 2012C. However, the first clamping member 2012 of the present invention is not limited thereto.
For example, as shown in fig. 6 and fig. 8, the second clamping element 2022 of the second chart frame 202 has a second fixing portion 2022A fixed on the second frame body 2021, a second position-limiting portion 2022B extending from the second fixing portion 2022A and limiting the position of the second chart display element 22, and a second pressing portion 2022C connected to the second position-limiting portion 2022B and pressing against the second chart display element 22. That is, the second chart displaying component 22 can obtain a better positioning effect by the cooperation of the second position-limiting portion 2022B and the second pressing portion 2022C. However, the second clamping member 2022 of the present invention is not limited thereto.
Referring to fig. 9, a plurality of second chart frames 202 of the chart frame structure 20 may be pivotally disposed on the first chart frame 201. Therefore, as shown by the "rotation adjustment arrow" in fig. 9, when the predetermined adjustable angle α of each second frame 2021 inclined with respect to the first frame 2011 is adjusted, a first predetermined angle θ 1 of each second chart displaying component 22 inclined with respect to the first chart displaying component 21 is also adjusted. That is, according to different usage requirements, a first predetermined angle θ 1 at which the second chart displaying component 22 is tilted with respect to the first chart displaying component 21 may be determined according to a predetermined adjustable angle α at which the second frame 2021 is tilted with respect to the first frame 2011. It should be noted that, as shown by the "lifting adjustment arrow" in fig. 9, since the chart frame structure 20 can also be adjusted to lift, the first chart displaying component 21 and the plurality of second chart displaying components 22 can be adjusted to lift following the lifting of the chart frame structure 20.
In summary, the lens focusing apparatus Z and the telephoto lens module 3 thereof according to the embodiments of the present invention have the advantages that the lens focusing apparatus Z can shorten the distance (or the optical path distance) between the first chart displaying component 21 and the at least one lens W to be measured by the first telephoto lens 31 and the plurality of second telephoto lenses 32, and shorten the distance (or the optical path distance) between the second chart displaying component 22 and the at least one lens W to be measured by the design that the first telephoto lens 31 is disposed between the at least one lens W to be measured and the first chart displaying component 21, and each of the second telephoto lenses 32 is disposed between the at least one lens W to be measured and the corresponding second chart displaying component 22, thereby effectively reducing the overall height of the lens focusing apparatus Z. That is, the present invention uses the first telephoto lens 31 and the plurality of second telephoto lenses 32 to reduce the optical path between the chart display module 2 and at least one lens W to be measured, thereby effectively reducing the overall height of the lens focusing apparatus Z and achieving the purpose of miniaturizing the lens focusing apparatus Z. Therefore, the invention can utilize the invention of the miniaturized lens focusing device Z to achieve the finished product of at least one lens W to be tested at infinity. It should be noted that, since the lens focusing apparatus Z of the present invention can provide a wide field of view (FOV), at least one lens W to be tested, which is tested by the lens focusing apparatus Z of the present invention, can achieve full-view image quality.
The disclosure is only a preferred embodiment of the invention, and is not intended to limit the scope of the claims, so that all equivalent technical changes made by using the contents of the specification and the drawings are included in the scope of the claims.
Claims (11)
1. A lens focusing apparatus, characterized by comprising:
the lens clamping module clamps a lens to be tested;
a chart display module comprising a chart frame structure, a first chart display assembly disposed on the chart frame structure, and a plurality of second chart display assemblies disposed on the chart frame structure, wherein each of the second chart display assemblies is tilted at a first predetermined angle relative to the first chart display assembly; and
a telephoto lens module including a lens frame structure, a first telephoto lens disposed on the lens frame structure, and a plurality of second telephoto lenses disposed on the lens frame structure, wherein each of the second telephoto lenses is inclined at a second predetermined angle with respect to the first telephoto lens;
the first telephoto lens is arranged between the lens to be detected and the first chart display assembly, and each second telephoto lens is arranged between the lens to be detected and the corresponding second chart display assembly;
wherein the first predetermined angle at which each of the second chart display elements is tilted with respect to the first chart display element is θ 1, the second predetermined angle at which each of the second telephoto lenses is tilted with respect to the first telephoto lens is θ 2, and a relationship between the first predetermined angle θ 1 and the second predetermined angle θ 2 satisfies the following relationship: θ 1+ θ 2 ≈ 180 degrees.
2. A lens focusing apparatus according to claim 1, wherein the chart frame structure comprises a first chart frame and a plurality of second chart frames fixedly or adjustably provided on the first chart frame, respectively.
3. A lens focusing apparatus according to claim 2, wherein the first chart frame includes a first frame and a plurality of first holders provided on the first frame, and each of the second chart frames includes a second frame fixedly or adjustably provided on the first frame and a plurality of second holders provided on the second frame.
4. A lens focusing apparatus according to claim 3, wherein the first chart display assembly is clamped by a plurality of the first clamps of the first chart frame so as to be positioned on the first frame, and each of the second chart display assemblies is clamped by a plurality of the second clamps of the corresponding second chart frame so as to be positioned on the corresponding second frame.
5. A lens focusing apparatus according to claim 3, wherein each of the second frames includes at least two extension arms fixedly or adjustably provided on the first frame, and each of the second chart display assemblies is clamped by a plurality of the second clamping members of the corresponding second chart frame so as to be positioned between the at least two extension arms of the corresponding second frame.
6. A lens focusing apparatus according to claim 3, wherein the first holding member has a first fixing portion fixed to the first frame body, a first position-limiting portion extending from the first fixing portion and limiting the position of the first graphic display assembly, and a first pressing portion connected to the first position-limiting portion and pressing against the first graphic display assembly, and the second holding member has a second fixing portion fixed to the second frame body, a second position-limiting portion extending from the second fixing portion and limiting the position of the second graphic display assembly, and a second pressing portion connected to the second position-limiting portion and pressing against the second graphic display assembly.
7. A lens focusing apparatus according to claim 1, wherein the lens frame structure comprises a first lens frame and a plurality of second lens frames circumferentially disposed on the first lens frame, the first telephoto lens passes through a first through hole of the first lens frame, and each of the second telephoto lenses passes through a second through hole of the corresponding second lens frame.
8. The lens focusing apparatus of claim 1, wherein a first chart image presented by the first chart display element sequentially passes through the first telephoto lens and the lens to be measured to form a first corrected image beam projected on an image sensing element.
9. The lens focusing apparatus of claim 1, wherein a second chart image presented by each of the second chart display elements sequentially passes through the corresponding second telephoto lens and the lens to be tested to form a second corrected image beam projected on an image sensing element.
10. A lens focusing apparatus, characterized by comprising:
the lens clamping module clamps a lens to be tested;
a graphical display module comprising a first graphical display element and a plurality of second graphical display elements, wherein each of the second graphical display elements is inclined at a first predetermined angle relative to the first graphical display element; and
a telephoto lens module comprising a first telephoto lens and a plurality of second telephoto lenses, wherein each of the second telephoto lenses is tilted by a second predetermined angle with respect to the first telephoto lens;
the first telephoto lens is arranged between the lens to be detected and the first chart display assembly, and each second telephoto lens is arranged between the lens to be detected and the corresponding second chart display assembly; the telephoto lens module further comprises a lens frame structure, the lens frame structure comprises a first lens frame and a plurality of second lens frames arranged on the first lens frame in a surrounding manner, the first telephoto lens passes through a first through hole of the first lens frame to be positioned on the first lens frame, and each second telephoto lens passes through a second through hole of the corresponding second lens frame to be positioned on the second lens frame.
11. A telephoto lens module, comprising:
a lens frame structure;
a first telephoto lens disposed on the lens frame structure and corresponding to a first chart display assembly; and
a plurality of second telephoto lenses disposed on the lens frame structure, each of the plurality of second telephoto lenses corresponding to a second chart display component, wherein each of the plurality of second telephoto lenses is inclined to the first telephoto lens;
the lens frame structure comprises a first lens frame and a plurality of second lens frames arranged on the first lens frame in a surrounding mode, the first telephoto lens penetrates through a first through hole of the first lens frame, and each second telephoto lens penetrates through a second through hole of the corresponding second lens frame.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808730.3A CN107797220B (en) | 2016-09-07 | 2016-09-07 | Lens focusing apparatus and telephoto lens module thereof |
| US15/480,832 US10271046B2 (en) | 2016-03-09 | 2017-04-06 | Lens focusing apparatus and chart display module thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610808730.3A CN107797220B (en) | 2016-09-07 | 2016-09-07 | Lens focusing apparatus and telephoto lens module thereof |
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| Publication Number | Publication Date |
|---|---|
| CN107797220A CN107797220A (en) | 2018-03-13 |
| CN107797220B true CN107797220B (en) | 2020-08-25 |
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| CN201610808730.3A Active CN107797220B (en) | 2016-03-09 | 2016-09-07 | Lens focusing apparatus and telephoto lens module thereof |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001337266A (en) * | 2000-05-25 | 2001-12-07 | Fuji Photo Film Co Ltd | Photographing lens and camera using the same |
| CN1880998A (en) * | 2005-06-15 | 2006-12-20 | 德浩科技有限公司 | Optical system capable of shortening optical path and lens imaging quality detection system |
| JP2010197460A (en) * | 2009-02-23 | 2010-09-09 | Topcon Corp | Long focus lens with thermal aberration eliminated |
-
2016
- 2016-09-07 CN CN201610808730.3A patent/CN107797220B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001337266A (en) * | 2000-05-25 | 2001-12-07 | Fuji Photo Film Co Ltd | Photographing lens and camera using the same |
| CN1880998A (en) * | 2005-06-15 | 2006-12-20 | 德浩科技有限公司 | Optical system capable of shortening optical path and lens imaging quality detection system |
| JP2010197460A (en) * | 2009-02-23 | 2010-09-09 | Topcon Corp | Long focus lens with thermal aberration eliminated |
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| Publication number | Publication date |
|---|---|
| CN107797220A (en) | 2018-03-13 |
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