TWM626231U - Lens focusing system and chart display structure - Google Patents

Abstract

The present invention discloses a lens focusing system and a chart display structure. The lens focusing system includes an object-to-be-measured bearing device, a lens position prediction device, and a lens position adjustment device. The object-to-be-tested carrying device is used for carrying an image capturing module. The image capturing module includes a lens structure and an image sensing chip. The lens position prediction device includes a graph display structure. The graph display structure is used to provide a physical measurement distance and an image measurement distance. In this way, according to the comparison between the physical measurement distance and the image measurement distance, the lens structure can gradually move toward or away from the image sensing chip until an optical center point of the lens structure is separated from an actual distance from the image sensing chip. Equal to the focal length of a lens of the lens structure.

Description

Lens focusing system and graphic display structure

This creation relates to a focusing system and a display structure, in particular to a lens focusing system and a chart display structure.

In the prior art, the image capturing module includes a lens holder and a lens assembly, and the lens assembly needs to be focused in advance before being fixed on the lens holder. However, the focusing system and focusing method of the prior art lens assembly still have room for improvement.

The technical problem to be solved by this creation is to provide a lens focusing system and a graph display structure aiming at the deficiencies of the prior art.

In order to solve the above-mentioned technical problems, one of the technical solutions adopted in this creation is to provide a lens focusing system, which includes: an object-to-be-measured carrying device, a lens position prediction device, and a lens position adjustment device. The object-to-be-measured carrying device is used for carrying an image capture module, and the image capture module includes a lens support, a lens structure movably arranged on the lens support, and an image sensing chip corresponding to the lens structure. The lens position prediction device includes a graph display structure. The lens position adjusting device is used for rotatably adjusting the distance between the lens structure and the image sensing chip. The chart display structure includes a first entity chart and a second entity chart separated from each other, and a first entity reference point of the first entity chart and a second entity reference point of the second entity chart are both separated by one entity Measure distance. Wherein, when the image sensor chip cooperates with the lens structure to capture both the first physical diagram and the second physical diagram of the diagram display structure and then obtains a diagram image information, the diagram image information is used to provide the information corresponding to the first physical diagram. A first image chart and a second image chart corresponding to the second physical chart, and a first image reference point of the first image chart and a second image reference point of the second image chart are both separated by an image measurement distance. Wherein, when the image measurement distance obtained by the image sensor chip and the lens structure is greater than the physical measurement distance, since an actual distance between an optical center point of the lens structure and the image sensor chip is greater than a lens focal length of the lens structure, Therefore, the lens structure is adjusted by the rotation of the lens position adjusting device, so that the lens structure gradually moves toward the direction close to the image sensing chip, until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure. Wherein, when the image measurement distance obtained by the image sensor chip and the lens structure is smaller than the physical measurement distance, since the actual distance between the optical center point of the lens structure and the image sensor chip is smaller than the lens focal length of the lens structure, the lens structure Through the rotation adjustment of the lens position adjusting device, the lens structure gradually moves away from the image sensing chip until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure.

In order to solve the above technical problems, another technical solution adopted in this creation is to provide a chart display structure, which includes a bottom layer without a chart, a first entity chart and a second entity chart, and the first entity chart and the second entity chart The entity graph is placed on a no graph bottom layer so that there are no graphs around the first entity graph, around the second entity graph, and between the first entity graph and the second entity graph.

One of the beneficial effects of the present invention is that a lens focusing system provided by the present invention can be used to carry an image capture module through the "object-to-be-measured carrying device, and the image capture module includes a lens holder, which can be A lens structure movably arranged on the lens holder and an image sensing chip corresponding to the lens structure", "The lens position prediction device includes a graph display structure, and the graph display structure includes a first physical graph separated from each other and A second entity graph, and a first entity reference point of the first entity graph and a second entity reference point of the second entity graph are both separated by a physical measurement distance" and "The lens position adjustment device is used for rotatable The technical solution of adjusting the distance between the lens structure and the image sensor chip”, so that when the image measurement distance obtained by the image sensor chip and the lens structure is greater than the physical measurement distance, the lens structure can be adjusted through the rotation of the lens position adjustment device. Adjustment, so that the lens structure gradually moves toward the direction of approaching the image sensor chip, and when the image measurement distance obtained by the image sensor chip and the lens structure is smaller than the physical measurement distance, the lens structure can be rotated through the lens position adjustment device. Adjust, so that the lens structure gradually moves away from the image sensing chip.

Another beneficial effect of the present invention is that the present invention provides a chart display structure, which can be set on the bottom layer without a chart through "the first entity chart and the second entity chart, so that the surrounding of the first entity chart and the second entity chart can be There is no chart around the entity chart and between the first entity chart and the second entity chart", so that the chart display structure can be applied to the lens focusing system provided by the present creation.

In order to further understand the features and technical content of this creation, please refer to the following detailed descriptions and drawings about this creation, however, the provided drawings are only for reference and description, and are not intended to limit this creation.

The following are specific embodiments to illustrate the implementation of the "lens focusing system and chart display structure" disclosed in the present creation. Those skilled in the art can understand the advantages and effects of the present creation from the content disclosed in this specification. This creation can be implemented or applied through other different specific embodiments, and various details in this specification can also be modified and changed based on different viewpoints and applications without departing from the concept of this creation. In addition, it should be stated in advance that the drawings of this creation are only for simple schematic illustration, and are not drawn according to the actual size. The following embodiments will further describe the related technical contents of the present creation in detail, but the disclosed contents are not intended to limit the protection scope of the present creation. In addition, the term "or", as used herein, should include any one or a combination of more of the associated listed items, as the case may be.

[First Embodiment]

Referring to FIGS. 1 to 14 , the first embodiment of the present invention provides a lens focusing system S, which includes: an object-to-be-measured carrying device 1 , a lens position prediction device 2 and a lens position adjustment device 3 .

First, as shown in FIG. 1 and FIG. 2 , the object-to-be-measured carrying device 1 can be used to carry an image capture module M, and the image capture module M can at least include a lens holder M1 movably arranged on the lens A lens structure M2 (or a lens assembly) on the support M1 and an image sensing chip M3 corresponding to the lens structure M2. In addition, the lens position prediction device 2 includes a graph display structure 20, and the lens position adjustment device 3 can be used to rotatably adjust the distance between the lens structure M2 and the image sensing chip M3. For example, the object-to-be-measured carrying device 1 can be any fixing device or clamping device that can be used to position or fix the image capture module M, and the lens structure M2 can include a protective shell movably disposed inside the lens holder M1 The image sensing chip M3 can be a charge-coupled device (CCD) or a complementary metal oxide Semiconductor (Complementary Metal-Oxide-Semiconductor, CMOS) sensor. In addition, the lens position prediction device 2 may include a signal control module electrically connected to the image sensing chip M3 and a chart bearing module for carrying the chart display structure 20 . In addition, the lens position adjustment device 3 may include a clamping mechanism for clamping the lens structure M2 and a driving motor for driving the clamping mechanism to rotate, and the lens position adjustment device 3 can pass through the clamping mechanism and the driving motor. In cooperation, the lens structure M2 is clamped and the lens structure M2 is driven to rotate clockwise or counterclockwise relative to the image sensing chip M3. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIG. 3 , FIG. 4 and FIG. 5 , the diagram display structure 20 includes a first physical diagram 201 (or a first physical pattern) and a second physical diagram 202 (or a first physical diagram) which are separated from each other. Two physical patterns), and a first physical reference point 201P of the first physical graph 201 and a second physical reference point 202P of the second physical graph 202 are both separated by a physical measurement distance D1. For example, as shown in FIG. 3 , the graph display structure 20 includes a graph-free bottom layer 200 (that is, a blank area without any pattern), and the first entity graph 201 and the second entity graph 202 are set on the graph-free bottom layer 200 . so that there are no graphs around the first entity graph 201, around the second entity graph 202, and between the first entity graph 201 and the second entity graph 202 (that is, the graph display structure 20 provides The chart only has the first entity chart 201 and the second entity chart 201, and the rest areas except the first entity chart 201 and the second entity chart 201 are blank and have no pattern). Furthermore, as shown in FIG. 4 and FIG. 5 , the first physical graph 201 has a plurality of first black areas 201B and a plurality of first white areas 201W, and the second physical graph 202 has a plurality of second black areas 202B and a plurality of first white areas 201W. A second white area 202W. In addition, the area size (or shape size) of the first black area 201B of the first entity graph 201 and the second black area 202B of the second entity graph 202 may be the same or different, and the first white area of the first entity graph 201 The area size (or shape size) of the area 201W and the second white area 202W of the second entity chart 202 may be the same or different. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

It should be noted that, for example, as shown in FIG. 3 , FIG. 4 and FIG. 5 , the first entity reference point 201P of the first entity graph 201 may be a first entity center point 2011 , a first entity leftmost point 2012, a first entity rightmost point 2013 or any other point, and the second entity reference point 202P of the second entity graph 202 can be a second entity center point 2021, a second entity leftmost point 2022, a first entity The rightmost point 2023 of the two entities or any other point. Furthermore, the physical measurement distance D1 between the first physical reference point 201P of the first physical graph 201 and the second physical reference point 202P of the second physical graph 202 may be “the first physical One of the center point 2011 , the leftmost point 2012 of the first entity and the rightmost point 2013 of the first entity is “distanced” from the center point 2021 of the second entity, the leftmost point 2022 of the second entity or the second entity of the second entity chart 202 . The distance between one of the three rightmost points 2023 of the entity” (for example, the entity measurement distance D1 shown in FIG. 3 is: the first entity center point 2011 of the first entity graph 201 and the second entity of the second entity graph 202 The distance between the center point 2021). However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIG. 1 , FIG. 3 , FIG. 6 and FIG. 7 , when the image sensor chip M3 cooperates with the lens structure M2 to capture both the first physical map 201 and the second physical map 202 of the graphic display structure 20 When a graph image information 21 is obtained, the graph image information 21 can be used to provide a first image graph 211 (or a first virtual graph) corresponding to the first physical graph 201 and a first image graph 211 corresponding to the second physical graph 202 Two image charts 212 (or second virtual charts), and a first image reference point 211P of the first image chart 211 and a second image reference point 212P of the second image chart 212 are both separated by an image measurement distance D2 . In addition, the first image chart 211 and the second image chart 212 are formed on the non-graphic bottom layer 210 , so that the first image chart 211 and the second image chart 212 are surrounded by the first image chart 211 and the second image chart 212 . 212 There is no graph in between. For example, the first image reference point 211P of the first image chart 211 may be a first image center point 2111 , a first image leftmost point 2112 , a first image rightmost point 2113 or any other point, and The second image reference point 212P of the second image chart 212 may be a second image center point 2121 , a second image leftmost point 2122 , a second image rightmost point 2123 or any other point. Furthermore, the image measurement distance D2 between the first image reference point 211P of the first image chart 211 and the second image reference point 212P of the second image chart 212 may be “the first image of the first image chart 211 ”. One of the center point 2111 , the leftmost point 2112 of the first image, and the rightmost point 2113 of the first image is "distanced" from the center point 2121 of the second image, the leftmost point 2122 of the second image, or the second image center point 2121 of the second image chart 212 The distance between one of the three rightmost points 2123 of the image (for example, the image measurement distance D2 shown in FIG. 6 or FIG. 7 is: the distance between the first image center point 2111 of the first image chart 211 and the second image chart 212 The distance between the second image center point 2121). However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIG. 3 , FIG. 6 , FIG. 8 , FIG. 9 and FIG. 10 , the image measurement distance D2 (as shown in FIG. 6 ) obtained when the image sensing chip M3 cooperates with the lens structure M2 is larger than the actual image measurement distance D2 (as shown in FIG. 6 ) When measuring the distance D1 (as shown in FIG. 3 ), since an optical center point P of the lens structure M2 (eg, the optical center of the lens of the lens structure M2 ) is separated from an actual distance L (vertical distance) of the image sensing chip M3 is greater than the focal length F of a lens of the lens structure M2 (that is, the lens of the lens structure M2 is separated from the lens focal length F of the image sensing chip M3), so the lens structure M2 can be adjusted by the rotation of the lens position adjusting device 3, so that the lens structure M2 Gradually move towards the direction close to the image sensing chip M3, until the actual distance between the optical center point P of the lens structure M2 and the image sensing chip M3 is equal to the lens focal length F of the lens structure M2 (that is, the focal point of the lens structure M2 will be completely fall on the image sensing chip M3) (as shown in Figure 10).

For example, as shown in FIG. 3 , FIG. 6 , FIG. 8 and FIG. 10 , the lens holder M1 has a right-handed inner thread M11 , and the lens structure M2 has a right-handed outer thread M21 that cooperates with the right-handed inner thread M11 . Therefore, when the image measuring distance D2 (as shown in FIG. 6 ) obtained by the image sensing chip M3 in cooperation with the lens structure M2 is greater than the physical measuring distance D1 (as shown in FIG. 3 ), the lens position adjustment device 3 can adjust the Clockwise rotation adjusts the lens structure M2 (as shown by the clockwise arrow in FIG. 8 ), so that the lens structure M2 gradually approaches the image sensing chip M3 in a clockwise rotation until the optical center point P of the lens structure M2 is farther from the image sensor. The actual distance L of the sensor chip M3 is equal to the lens focal length F of the lens structure M2, so that the lens focus of the lens structure M2 will completely fall on the image sensor chip M3 (as shown in Figure 10), and then the lens structure M2 can pass through the point It is fixed inside the lens holder M1 by means of glue. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

For example, as shown in FIGS. 3 , 6 , 9 and 10 , the lens holder M1 has a left-handed inner thread M12 , and the lens structure M2 has a left-handed outer thread M22 that cooperates with the left-handed inner thread M12 . Therefore, when the image measurement distance D2 (as shown in FIG. 6 ) obtained by the image sensor chip M3 and the lens structure M2 is greater than the physical measurement distance D1 (as shown in FIG. 3 ), the lens position adjustment device 3 can reverse Clockwise rotation adjusts the lens structure M2 (as shown by the counterclockwise arrow in FIG. 9 ), so that the lens structure M2 gradually approaches the image sensing chip M3 in a counterclockwise manner, until the optical center point P of the lens structure M2 is separated from the image sensor. The actual distance L of the sensor chip M3 is equal to the lens focal length F of the lens structure M2, so that the lens focus of the lens structure M2 will completely fall on the image sensor chip M3 (as shown in Figure 10), and then the lens structure M2 can pass through the point It is fixed inside the lens holder M1 by means of glue. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

Furthermore, as shown in FIG. 3 , FIG. 7 , FIG. 11 , FIG. 12 and FIG. 13 , the image measurement distance D2 (as shown in FIG. 7 ) obtained when the image sensing chip M3 cooperates with the lens structure M2 is smaller than the actual image measurement distance D2 (as shown in FIG. 7 ) When measuring the distance D1 (as shown in FIG. 3 ), the actual distance L (vertical distance) between the optical center point P of the lens structure M2 (eg, the optical center of the lens of the lens structure M2 ) and the image sensing chip M3 is smaller than that of the lens. The lens focal length F of the structure M2 (that is, the lens of the lens structure M2 is separated from the lens focal length F of the image sensing chip M3), so the lens structure M2 can be adjusted by the rotation of the lens position adjusting device 3, so that the lens structure M2 gradually moves away from The direction of the image sensing chip M3 is moved until the actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is equal to the lens focal length F of the lens structure M2 (that is, the focal point of the lens structure M2 will fall completely. on the image sensing wafer M3) (as shown in Figure 13).

For example, as shown in FIGS. 3 , 7 , 11 and 13 , the lens holder M1 has a right-handed inner thread M11 , and the lens structure M2 has a right-handed outer thread M21 that cooperates with the right-handed inner thread M11 . Therefore, when the image measurement distance D2 (as shown in FIG. 7 ) obtained by the image sensor chip M3 and the lens structure M2 is smaller than the physical measurement distance D1 (as shown in FIG. 3 ), the lens position adjustment device 3 can reverse Clockwise rotation adjusts the lens structure M2 (as shown by the counterclockwise arrow in FIG. 11 ), so that the lens structure M2 gradually moves away from the image sensing chip M3 in a counterclockwise manner until the optical center point P of the lens structure M2 is farther from the image sensor. The actual distance L of the sensor chip M3 is equal to the lens focal length F of the lens structure M2, so that the lens focus of the lens structure M2 will completely fall on the image sensor chip M3 (as shown in Figure 13), and then the lens structure M2 can pass through the point It is fixed inside the lens holder M1 by means of glue. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

For example, as shown in FIGS. 3 , 7 , 12 and 13 , the lens holder M1 has a left-handed inner thread M12 , and the lens structure M2 has a left-handed outer thread M22 that cooperates with the left-handed inner thread M12 . Therefore, when the image measurement distance D2 (as shown in FIG. 7 ) obtained by the image sensor chip M3 and the lens structure M2 is smaller than the physical measurement distance D1 (as shown in FIG. 3 ), the lens position adjustment device 3 can adjust the Clockwise rotation adjusts the lens structure M2 (as shown by the clockwise arrow in FIG. 12 ), so that the lens structure M2 gradually moves away from the image sensing chip M3 in a clockwise rotation until the optical center point P of the lens structure M2 is farther from the image sensor. The actual distance L of the sensor chip M3 is equal to the lens focal length F of the lens structure M2, so that the lens focus of the lens structure M2 will completely fall on the image sensor chip M3 (as shown in Figure 13), and then the lens structure M2 can pass through the point It is fixed inside the lens holder M1 by means of glue. However, the above-mentioned example is only one possible embodiment and is not intended to limit the present invention.

[Second Embodiment]

Referring to FIGS. 1 to 14 , a second embodiment of the present invention provides a lens focusing method, which at least includes the following steps: First, as shown in FIG. 3 , a graph display structure 20 is provided. The graph display structure 20 includes each other. A first physical graph 201 and a second physical graph 202 are separated, and a first physical reference point 201P of the first physical graph 201 and a second physical reference point 202P of the second physical graph 202 are separated by a physical measurement distance D1 (step S100 ); then, as shown in FIG. 1 , FIG. 3 , FIG. 6 and FIG. 7 , through an image sensor chip M3 and a lens structure M2 to capture the first physical graph 201 of the graph display structure 20 and After the second physical chart 202, a chart image information 21 is obtained. The chart image information 21 is used to provide a first image chart 211 corresponding to the first physical chart 201 and a second image corresponding to the second physical chart 202. Graph 212, and a first image reference point 211P of the first image graph 211 and a second image reference point 212P of the second image graph 212 are separated by an image measurement distance D2 (step S102); then, referring to FIG. 6 As shown in FIG. 13, according to the comparison between the physical measurement distance D1 and the image measurement distance D2, the lens structure M2 is gradually moved toward or away from the image sensing chip M3 until an optical center point P of the lens structure M2 is separated from each other. An actual distance L on the image sensing chip M3 is equal to a lens focal length F of the lens structure M2 (step S104 ).

Furthermore, as shown in FIG. 3 , FIG. 6 , FIG. 8 , FIG. 9 and FIG. 10 , when the image measurement distance D2 obtained by the image sensor chip M3 and the lens structure M2 is greater than the physical measurement distance D1 , because The actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is greater than the lens focal length F of the lens structure M2, so the lens structure M2 can be adjusted by rotation, so that the lens structure M2 gradually approaches the image sensing chip M3 Move in the direction of , until the actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is equal to the lens focal length F of the lens structure M2.

Furthermore, as shown in FIG. 3 , FIG. 7 , FIG. 11 , FIG. 12 and FIG. 13 , when the image measurement distance D2 obtained by the image sensor chip M3 and the lens structure M2 is smaller than the physical measurement distance D1 , because The actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is smaller than the lens focal length of the lens structure M2, so the lens structure M2 can be adjusted by rotation, so that the lens structure M2 gradually moves away from the image sensing chip M3. The direction is moved until the actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is equal to the lens focal length F of the lens structure M2.

[Advantageous effects of the embodiment]

One of the beneficial effects of the present invention is that the lens focusing system S provided by the present invention can be used for carrying an image capture module M through the "object-to-be-measured carrying device 1, and the image capture module M includes a The lens holder M1, a lens structure M2 movably disposed on the lens holder M1, and an image sensing chip M3 corresponding to the lens structure M2", "The lens position prediction device 2 includes a graphic display structure 20, and the graphic display The structure 20 includes a first physical graph 201 and a second physical graph 202 separated from each other, and both a first physical reference point 201P of the first physical graph 201 and a second physical reference point 202P of the second physical graph 202 A physical measurement distance D1" and the technical solution of "the lens position adjustment device 3 is used to rotatably adjust the distance between the lens structure M2 and the image sensing chip M3", so that when the image sensing chip M3 is matched with the lens structure M2 When the obtained image measurement distance D2 is greater than the physical measurement distance D1, the lens structure M2 can be adjusted through the rotation of the lens position adjustment device 3, so that the lens structure M2 gradually moves toward the direction of approaching the image sensing chip M3, and when the image When the image measurement distance D2 obtained by the sensor chip M3 and the lens structure M2 is smaller than the physical measurement distance D1, the lens structure M2 can be adjusted by the rotation of the lens position adjusting device 3, so that the lens structure M2 gradually moves away from the image sensor chip Move in the direction of M3.

Another beneficial effect of the present invention is that, the present invention provides a chart display structure 20, which can be set on the bottom layer 200 without a chart through "the first entity chart 201 and the second entity chart 202, so that the first entity chart 201 around the second entity chart 202, and there is no chart between the first entity chart 201 and the second entity chart 202” technical solution, so that the chart display structure 20 can be applied to the Lens focusing system S and lens focusing method.

The contents disclosed above are only the preferred and feasible embodiments of this creation, and are not intended to limit the scope of the patent application of this creation. Therefore, any equivalent technical changes made by using the descriptions and drawings of this creation are included in the application for this creation. within the scope of the patent.

S: Lens focusing system 1: Loading device for the object to be tested 2: Lens position prediction device 20: Diagram showing structure 200: No chart bottom layer 201: First Entity Chart 202: Second Entity Chart 201P: First Entity Reference Point 202P: Second Entity Reference Point 201B: First black area 201W: First white area 202B: Second black area 202W: Second white area 2011: First entity center point 2012: Leftmost point of the first entity 2013: Rightmost point of the first entity 2021: Second entity center point 2022: Leftmost point of the second entity 2023: Rightmost point of the second entity 21: Chart image information 210: No chart bottom layer 211: First Image Chart 212: Second Image Chart 211P: The first image reference point 212P: Second image reference point 2111: First image center point 2112: The leftmost point of the first image 2113: The rightmost point of the first image 2121: Second image center point 2122: The leftmost point of the second image 2123: The rightmost point of the second image 3: Lens position adjustment device D1: Entity measurement distance D2: Image measurement distance L: actual distance M: Image capture module M1: Lens mount M2: Lens Construction M3: Image sensor chip M11: Right-hand internal thread M12: Left-handed female thread M21: Right-hand male thread M22: Left-handed external thread P: optical center point F: Lens focal length

FIG. 1 is a schematic diagram of a lens focusing system provided by a first embodiment of the invention.

FIG. 2 is another schematic diagram of the lens focusing system provided by the first embodiment of the present invention.

FIG. 3 is a schematic diagram of a physical measurement distance provided by the chart display structure of the first embodiment of the present invention.

FIG. 4 is a schematic diagram of a first physical graph having a plurality of first black areas and a plurality of first white areas according to the first embodiment of the invention.

FIG. 5 includes a plurality of second black areas and a plurality of second white areas in a second physical graph of the first embodiment of the present invention.

FIG. 6 is a schematic diagram of an image measurement distance provided by the chart image information of the first embodiment of the creation.

FIG. 7 is a schematic diagram of another image measurement distance provided by the chart image information of the first embodiment of the creation.

8 is a schematic diagram of the lens position adjusting device according to the first embodiment of the invention to adjust the lens structure by clockwise rotation, so that the lens structure gradually approaches the image sensing chip in a clockwise rotation manner.

9 is a schematic diagram of the lens position adjusting device according to the first embodiment of the invention to adjust the lens structure by counterclockwise rotation, so that the lens structure gradually approaches the image sensing chip in a counterclockwise manner.

10 is a schematic diagram illustrating that the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure after the lens structure of FIG. 8 and FIG. 9 is adjusted by rotation.

11 is a schematic diagram of the lens position adjusting device according to the first embodiment of the invention to adjust the lens structure by counterclockwise rotation, so that the lens structure gradually moves away from the image sensing chip in a counterclockwise manner.

12 is a schematic diagram of the lens position adjusting device according to the first embodiment of the invention to adjust the lens structure by clockwise rotation, so that the lens structure gradually moves away from the image sensing chip in a clockwise rotation.

13 is a schematic diagram illustrating that the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure after the lens structure of FIG. 11 and FIG. 12 is adjusted by rotation.

FIG. 14 is a flowchart of a lens focusing method provided by the second embodiment of the present invention.

20: Diagram showing structure

200: No chart bottom layer

201: First Entity Chart

202: Second Entity Chart

201P: First Entity Reference Point

202P: Second Entity Reference Point

2011: First entity center point

2012: Leftmost point of the first entity

2013: Rightmost point of the first entity

2021: Second entity center point

2022: Leftmost point of the second entity

2023: Rightmost point of the second entity

D1: Entity measurement distance

Claims (10)

A lens focusing system, comprising: an object-to-be-measured carrying device, the object-to-be-measured carrying device is used to carry an image capture module, the image capture module includes a lens support, movably arranged on the a lens structure on the lens holder and an image sensing chip corresponding to the lens structure; a lens position prediction device, the lens position prediction device is electrically connected to the image sensing chip, the lens The position prediction device includes a graph display structure; and a lens position adjustment device, the lens position adjustment device is used to rotatably adjust the distance between the lens structure and the image sensing chip; wherein, the graph shows The structure includes a first entity graph and a second entity graph separated from each other, and a first entity reference point of the first entity graph and a second entity reference point of the second entity graph are both separated by an entity Measuring distance; wherein, when the image sensor chip cooperates with the lens structure to capture both the first physical graph and the second physical graph of the graph display structure, and then obtains a graph image information , the chart image information is used to provide a first image chart corresponding to the first entity chart and a second image chart corresponding to the second entity chart, and a first image chart of the first image chart The image reference point and a second image reference point of the second image chart are separated by an image measurement distance; wherein, the image measurement distance obtained when the image sensing chip cooperates with the lens structure is greater than When the physical distance is measured, since an actual distance between an optical center point of the lens structure and the image sensing chip is greater than a lens focal length of the lens structure, the lens structure passes through the lens position. The rotation of the adjustment device is adjusted so that the lens structure Gradually move toward the direction of approaching the image sensing chip, until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure; wherein, When the image measurement distance obtained by the image sensor chip in conjunction with the lens structure is smaller than the physical measurement distance, because the optical center point of the lens structure is farther from the image sensor chip The actual distance is smaller than the lens focal length of the lens structure, so the lens structure is adjusted by the rotation of the lens position adjusting device, so that the lens structure gradually moves away from the image sensing chip, The actual distance up to the optical center point of the lens structure from the image sensing chip is equal to the lens focal length of the lens structure. The lens focusing system according to claim 1, wherein the lens holder has a right-handed inner thread, and the lens structure has a right-handed outer thread that cooperates with the right-handed inner thread; wherein, when all the When the image measurement distance obtained by the image sensing chip in cooperation with the lens structure is greater than the physical measurement distance, the lens position adjusting device rotates clockwise to adjust the lens structure, so that the lens structure is The image sensing chip is gradually approached in a clockwise rotation until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure; wherein , when the image measurement distance obtained by the image sensor chip and the lens structure is smaller than the physical measurement distance, the lens position adjustment device rotates and adjusts the lens structure counterclockwise, so that the lens The lens structure gradually moves away from the image sensing chip in a counterclockwise rotation until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens of the lens structure focal length. The lens focusing system according to claim 1, wherein the lens holder has a left-handed inner thread, and the lens structure has a left-handed outer thread that cooperates with the left-handed inner thread; wherein, when the image sensor When the image measurement distance obtained by the sensor chip and the lens structure is greater than the physical measurement distance, the lens position adjusting device rotates counterclockwise to adjust the lens structure, so that the lens structure rotates counterclockwise approaching the image sensing chip gradually until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure; When the image measurement distance obtained by the image sensing chip and the lens structure is smaller than the physical measurement distance, the lens position adjustment device rotates clockwise to adjust the lens structure, so that the lens structure is Rotate clockwise gradually away from the image sensing chip until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure. The lens focusing system according to claim 1, wherein the graph display structure includes a graph-free bottom layer, and the first entity graph and the second entity graph are arranged on the graph-free bottom layer, so that all There are no graphs around the first entity graph, around the second entity graph, and between the first entity graph and the second entity graph; wherein the first entity graph has multiple A first black area and a plurality of first white areas, and the second physical graph has a plurality of second black areas and a plurality of second white areas; wherein the first black area of the first physical graph is the same as the the second real The area of the second black area of the solid graph is the same or different, and the area of the first white area of the first solid graph and the second white area of the second solid graph are the same or different. The lens focusing system of claim 4, wherein the first entity reference point of the first entity graph is a first entity center point, a first entity leftmost point, or a first entity rightmost point , and the second entity reference point of the second entity graph is a second entity center point, a second entity leftmost point or a second entity rightmost point; wherein, all the first entity graphs The physical measurement distance between the first physical reference point and the second physical reference point of the second physical graph is the first physical center point of the first physical graph, the One of the leftmost point of the first entity and the rightmost point of the first entity is far from the center point of the second entity, the leftmost point of the second entity or the second entity of the second entity graph The distance to one of the three rightmost points. The lens focusing system of claim 4, wherein the first image reference point of the first image chart is a center point of a first image, a leftmost point of a first image, or a rightmost point of a first image , and the second image reference point of the second image chart is a center point of a second image, a leftmost point of a second image, or a rightmost point of a second image; wherein, all of the first image chart The image measurement distance between the first image reference point and the second image reference point of the second image chart is the first image center point of the first image chart, the One of the leftmost point of the first image and the rightmost point of the first image is away from the center point of the second image, the leftmost point of the second image or the second image of the second image chart The distance to one of the three rightmost points. A graph display structure, which includes a graph-free bottom layer, a first entity graph, and a second entity graph, and the first entity graph and the second entity graph are arranged on the graph-free bottom layer, so that all There are no graphs around the first entity graph, around the second entity graph, and between the first entity graph and the second entity graph. The graph display structure according to claim 7, wherein the graphs provided by the graph display structure are only the first entity graph and the second entity graph; wherein the first entity graph has a plurality of first entity graphs A black area and a plurality of first white areas, and the second physical graph has a plurality of second black areas and a plurality of second white areas; wherein, the first black area of the first physical graph and the The area size of the second black area of the second entity chart is the same or different, and the area sizes of the first white area of the first entity chart and the second white area of the second entity chart are the same or different. same or different. The diagram display structure of claim 8, wherein a first physical reference point of the first physical diagram and a second physical reference point of the second physical diagram are both separated by a physical measurement distance; wherein , when an image sensor chip cooperates with a lens structure to capture both the first physical graph and the second physical graph of the graph display structure to obtain a graph image information, the graph image information is used in providing a first image graph corresponding to the first physical graph and a second image graph corresponding to the second physical graph, and a first image reference point of the first image graph and the first image graph A second image reference point for two image charts The two are separated by an image to measure the distance. The diagram display structure according to claim 9, wherein when the image measurement distance obtained by the image sensing chip in cooperation with the lens structure is greater than the physical measurement distance, because of an aspect of the lens structure An actual distance between the optical center point and the image sensing chip is greater than a lens focal length of the lens structure, so the lens structure is adjusted by rotation, so that the lens structure gradually moves toward the image sensing chip. The direction is moved until the actual distance between the optical center point of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure; wherein, when the image sensing chip cooperates with the image sensing chip When the image measurement distance obtained by the lens structure is smaller than the physical measurement distance, because the actual distance between the optical center point of the lens structure and the image sensing chip is smaller than the actual distance of the lens structure The focal length of the lens, so the lens structure is adjusted by rotation, so that the lens structure gradually moves away from the image sensor chip until the optical center point of the lens structure is farther from the image sensor The actual distance of the wafer is equal to the lens focal length of the lens structure.

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