CN113720580A

CN113720580A - Mounting structure and detection device with mounting structure

Info

Publication number: CN113720580A
Application number: CN202010921992.7A
Authority: CN
Inventors: 李基愿
Original assignee: Samsung Electro Mechanics Co Ltd
Current assignee: Samsung Electro Mechanics Co Ltd
Priority date: 2020-05-25
Filing date: 2020-09-04
Publication date: 2021-11-30
Also published as: KR20210145439A

Abstract

The detection device according to an embodiment of the present invention includes a mounting structure disposed at a distance from a detection object and a plurality of measurement units mounted on the mounting structure, wherein the mounting structure includes a plurality of support frames to which the measurement units are coupled and support portions to which the support frames are radially fixed and fastened, wherein at least one of the plurality of support frames is detachably coupled to the support portion and may be selectively coupled to a plurality of coupling positions where an included angle formed by the at least one support frame with the other support frames is different.

Description

Mounting structure and detection device with mounting structure

Technical Field

The present invention relates to a mounting structure and a detection device having the mounting structure.

Background

Recent portable electronic devices such as smart phones, tablet computers, and the like are generally mounted with camera modules, and by using such camera modules, photographs or videos are taken with the portable electronic devices.

Recently, as camera modules are gradually miniaturized, high resolution, and high pixelation, various detections such as focus detection, resolution detection, foreign matter detection, and the like are performed after the camera modules are manufactured.

Therefore, a detection apparatus that can easily detect a detection object such as a camera module is required.

Disclosure of Invention

Solves the technical problem

An object of the present invention is to provide a mounting structure that can easily arrange the positions of measurement units corresponding to various detection objects, and a detection apparatus having the mounting structure.

Means for solving the problems

Further, a mounting structure according to an embodiment of the present invention, which is a dome-shaped mounting structure for mounting a plurality of measurement units measuring an inspection object, includes a plurality of support frames to which the measurement units are coupled, and a support portion having a ring shape and to which the support frames are radially fixed and fastened, wherein at least one of the plurality of support frames may be selectively coupled to a plurality of coupling positions formed with different azimuth angles.

ADVANTAGEOUS EFFECTS OF INVENTION

The inspection apparatus according to the embodiment of the present invention may inspect an inspection object at various azimuth angles by selectively coupling at least one support frame to a plurality of coupling positions. Therefore, since it is not necessary to replace the entire mounting structure in order to detect or measure the detection object at a different azimuth angle, the measurement is very easy, and the measurement time can also be minimized.

Drawings

Fig. 1 is a diagram schematically showing a detection apparatus according to an embodiment of the present invention.

Fig. 2 is a perspective view of the mounting structure shown in fig. 1.

Fig. 3 is a plan view of the mounting structure shown in fig. 2.

Fig. 4 is a partially exploded perspective view of the mounting structure shown in fig. 2.

Fig. 5 is a perspective view illustrating a supporting portion and a base frame of the mounting structure of fig. 2.

Fig. 6 is a bottom surface perspective view of fig. 5.

Fig. 7 to 9 are views showing a spoke frame according to the present embodiment.

Fig. 10 is a view partially showing a lower surface of a joint portion of the mounting structure shown in fig. 2.

Fig. 11 is a sectional view taken along I-I of fig. 10.

Fig. 12 is a plan view of a mounting structure for arranging measurement units at a ratio of 4: 3.

Fig. 13 is a plan view of a mounting structure for arranging measurement units at a ratio of 16: 9.

Fig. 14 and 15 are partially exploded perspective views each schematically showing a mounting structure of a detection apparatus according to another embodiment of the present invention.

Detailed Description

Before describing the present invention in detail, terms or words used in the present specification and claims described hereinafter should not be construed as being limited to general or dictionary meanings, but interpreted as meanings and concepts conforming to the technical idea of the present invention on the basis of the principle that the inventor can appropriately define the concept of the term to describe his own invention in the best way. Therefore, since the embodiments described in the present specification and the configurations shown in the drawings are only the most preferable embodiments of the present invention and do not represent all the technical ideas of the present invention, it is understood that various equivalents and modified examples capable of replacing the embodiments may exist at the time of filing the present application.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that in the drawings, the same constituent elements are denoted by the same reference numerals as much as possible. In addition, a detailed description of known functions and configurations that may obscure the gist of the present invention will be omitted. For the same reason, in the drawings, some constituent elements are exaggerated, omitted, or roughly shown, and the size of each constituent element does not completely reflect the actual size.

Hereinafter, embodiments according to the present invention are described in detail. The detection device of the present embodiment may be a device that detects optical characteristics of a detection object such as a lens. However, it is not limited thereto.

Fig. 1 is a view schematically showing a detection apparatus according to an embodiment of the present invention, fig. 2 is a perspective view of a mounting structure shown in fig. 1, and fig. 3 is a plan view of the mounting structure shown in fig. 2. Further, fig. 4 is a partially exploded perspective view of the mounting structure shown in fig. 2, fig. 5 is a perspective view illustrating a supporting portion and a base frame of the mounting structure of fig. 2, and fig. 6 is a bottom surface perspective view of fig. 5.

Referring to fig. 1 to 6, the inspection apparatus 100 according to the present embodiment may include a mounting structure body 10 and a plurality of measuring units 90, wherein the mounting structure body 10 is disposed at an upper portion of the inspection object 1, and the plurality of measuring units 90 are mounted on the mounting structure body 10 to measure the inspection object 1.

The measuring unit 90 may be a unit capable of determining the quality of the resolution of the lens as the inspection object 1 by the MTF (Modulation Transfer Function) value.

MTF is a value obtained by converting a black-and-white contrast into a numerical value according to a Spatial Frequency (Spatial Frequency), and is a representative value indicating the resolution of a camera. As a value representing the resolution, it is widely used as a main item for judging the performance of the lens.

The measurement unit 90 of the present embodiment may use various devices as long as the quality of the lens resolution can be judged by the MTF value, and is not limited by the shape and structure.

The plurality of measurement units 90 are fixed and fastened to the mounting structure body 10. In the present embodiment, the measurement unit 90 is fixed to the mounting structure body 10 with a fixing member such as a bolt. However, it is not limited thereto, and various known means may be used as long as the measurement unit 90 can be detachably coupled to the mounting structure 10.

The mounting structure 10, which is a structure for fixing the plurality of measurement units 90 such that the plurality of measurement units 90 are arranged toward the detection object 1, may be arranged at a distance from the detection object 1.

In the present embodiment, the mounting structure 10 may be formed in a dome (dome) shape or a hemispherical shape as a whole, and may include the support portion 20 and the plurality of support frames 80.

The support portion 20 is formed in a ring shape and is disposed at the lowermost portion of the mounting structure 10 to support the support frame 80 as a whole.

The support portion 20 may have fastening holes H1 to H8 to which the support frame 80 is coupled. The fastening holes H1 to H8 may be provided in plural corresponding to the plural coupling positions to which the support frame 80 is coupled.

Referring to fig. 5 and 6, the mounting structure 10 of the present embodiment can be divided into four regions by a base frame 39 described later. Further, a plurality of fastening holes H1 to H8 may be dispersedly arranged in the respective divided regions.

More specifically, the support portion 20 of the present embodiment includes four first fastening holes H1 for fastening the fixing frame 30 in the support frame 80. The first fastening holes H1 are arranged at equal intervals on the support portion 20. Accordingly, the support part 20 and the inner space of the support part 20 are divided into four parts having the same size by the fixing frame 30 coupled to the four first fastening holes H1.

In each of the divisional areas, the second fastening holes H2 to the eighth fastening holes H8 are arranged at a certain distance. The second to eighth fastening holes H2 to H8 may be arranged in a line-symmetrical fashion with reference to a line (C of fig. 6) passing through the two first fastening holes H1 and crossing the center of the supporter 20.

The second to eighth fastening holes H2 to H8 may be used to fasten the

spoke frames

40, 50 and 60 described later. For example, as shown in fig. 3, 12 and 13, the first reference frame 40 may be fastened to the fifth fastening hole H5, and the second reference frame 50 may be fastened to the sixth fastening hole H6 or the seventh fastening hole H7. In addition, the auxiliary frame 60 may be selectively fastened to the second fastening hole H2, the third fastening hole H3, the fourth fastening hole H4, and the eighth fastening hole H8.

The other end of the auxiliary frame 60 coupled to the second fastening slit 35, which will be described later, is coupled to the second fastening hole H2 to the fourth fastening hole H4. Accordingly, the second to fourth fastening holes H2 to H4 may be disposed at positions radially opposite to the second fastening slits 35.

The other ends of the reference frames 40 and 50 coupled to the first fastening slit 34 and the other end of the auxiliary frame 60 coupled to the third fastening slit 89, which will be described later, are coupled to the fifth to eighth fastening holes H5 to H8. Accordingly, the fifth to eighth fastening holes H5 to H8 may be disposed at positions radially opposite to the first fastening slits 34.

Further, the other end of the first reference frame 40 is coupled to the fifth fastening hole H5. In the present embodiment, since the first reference frame 40 is disposed to divide the divided region into two parts, the fifth fastening hole H5 may be disposed at the middle of the region between the two first fastening holes H1 into two parts.

The detailed positions of the second to eighth fastening holes H2 to H8 or the spacing distance between the fastening holes H2 to H8 may be defined with reference to an azimuth angle described later. The construction associated therewith will become more apparent from the description of the later described spoke frames 40, 50 and 60.

The coupling between the support frame 80 and the support portion 20 may use an additional fixing member such as a bolt. However, it is not limited thereto.

As a frame coupled to the support part 20, the support frame 80 may be coupled to the support part 20 to form a radial and dome (dome) shape.

The support frame 80 of this embodiment may include a base frame 39 and spoke

frames

40, 50 and 60.

The base frame 39 includes a central portion 38 and a plurality of fixing frames 30, wherein the central portion 38 is disposed on a central axis of the support portion 20, and the plurality of fixing frames 30 are elongated in a plurality of directions from the central portion 38. In the present embodiment, the case where the number of the fixing frames 30 is four is exemplified, but the number of the fixing frames 30 may be changed as necessary.

The end of the fixing frame 30 is fastened to the first fastening hole H1 of the support 20. Thus, one end of the fixed frame 30 is connected to the central portion 38, and the other end is connected to the support portion 20.

As described above, the mounting structure 10 of the present embodiment is formed in a dome shape. Therefore, the central portion 38 and the support portion 20 are not arranged on the same plane, and the fixing frame 30 is formed in an arc shape to connect the central portion 38 and the support portion 20.

All the supporting frames 80 (including the fixing frame 30) have the guide grooves 85 in the inside. The guide groove 85 may be formed in a through hole shape and may be formed in a slit shape to be elongated along the longitudinal direction of the support frame 80.

Such a guide groove 85 may be incorporated with the aforementioned measuring unit 90. For example, a fixing member such as a bolt may be fastened to the measuring unit 90 through the guide groove 85, and thus the measuring unit 90 may be disposed at various positions within a range where the guide groove 85 is formed. That is, the operator can select the position of the measurement unit 90 to arrange along the guide groove 85.

The interior of the central portion 38 may have a central slot 85 a. The central slit 85a may be arranged on the central axis of the support portion 20, and serves as a hole into which the measurement unit 90 is combined, like the guide groove 85. Therefore, the central slit 85a may be formed as a through hole in the form of a short slit, through which the measuring unit 90 can be moved and arranged.

Further, the central portion 38 of the present embodiment may include the joint portion 31.

The joint 31 may be disposed between the two fixing frames 30. Therefore, in the base frame 39 of the present embodiment, the spaces between the four fixing frames 30 may have one joint portion 31, respectively, and have four joint portions 31 in total.

The coupling portion 31 supports one end of the spoke frames 40, 50 and 60 and is coupled to the spoke frames 40, 50 and 60. To this end, each of the bonding portions 31 may include an inner bonding portion 32 and an outer bonding portion 33, wherein the inner bonding portion 32 is disposed with a first fastening slit 34, and the outer bonding portion 33 is formed with a second fastening slit 35.

The inner joint part 32 may be formed in a form extending from the central part 38 toward the support part 20, and connected to the central part 38 and the two fixing frames 30. The spoke frames 40 and 50 are mounted to and joined to the inboard joint 32.

The outer coupling portion 33 may be formed to extend from the inner coupling portion 32 toward the support portion 20, and may be configured to be connected to one of the two fixing frames 30. The spoke frame 60 is mounted to and coupled to the outboard bonding portion 33.

As shown in fig. 6, in the present embodiment, one outer joint portion 33 is provided between the fixing frames 30, respectively, and four outer joint portions 33 are provided in total. Further, the four outer side joint portions 33 are connected to only two of the four fixing frames 30. Therefore, the outer joint 33 is not connected to the remaining two fixing frames 30.

Here, the fixing frames 30 to which the outer side joint parts 33 are connected may be two fixing frames 30 arranged on a straight line with reference to the plane of the base frame 39, and may be fixing frames 30 arranged in a direction perpendicular to the length direction of the central slit 85 a. However, it is not limited thereto.

The first fastening slit 34 and the second fastening slit 35 are formed in the form of through holes, respectively, and in the form of slits in an arc shape concentric with the support portion 20.

Fig. 10 is a view partially showing a lower surface of a joint portion of the mounting structure shown in fig. 2, and fig. 11 is a sectional view taken along I-I of fig. 10.

Referring to fig. 10 and 11 together, a first fastening slit 34 is formed in the inner bonding portion 32, and a second fastening slit 35 is formed in the outer bonding portion 33. Thus, the first fastening slit 34 and the second fastening slit 35 are arranged at a distance in the radial direction.

Reference frames 40 and 50, which will be described later, are coupled to the first fastening slit 34, and an auxiliary frame 60, which is relatively short in length, is coupled to the second fastening slit 35. Accordingly, a distance between the first fastening slit 34 and the support portion 20 may be formed to be greater than a distance between the second fastening slit 35 and the support portion 20.

The coupling portion 31 is a portion that couples to one end of the spoke frames 40, 50, and 60, which will be described later. Thus, the specific shape may be configured to correspond to the end shape of the spoke frames 40, 50 and 60.

Further, since the first fastening slit 34 and the second fastening slit 35 are formed in slit forms, the position of the spoke frames 40, 50, and 60 can be corrected in a state where they are coupled to the first fastening slit 34 or the second fastening slit 35. For example, as shown in fig. 12, in a state where one end of a second reference frame 50, which will be described later, is disposed on the first fastening slit 34 and the other end is disposed on the sixth fastening hole H6, when the other end is coupled to the seventh fastening hole H7 in the state shown in fig. 13, the fixing member 82 coupled to the first fastening slit 34 does not need to be completely separated from the coupling part 31, but only the fixing member 82 (e.g., a bolt and a nut) needs to be loosened to a degree of being slidable, and may be disposed to an appropriate position by moving the fixing member 82 in the length direction of the first fastening slit 34.

For this, the first fastening slit 34 may include a through part 34a and an accommodating part 34b, wherein the through part 34a is formed at a first surface side contacting the reference frames 40 and 50, and the accommodating part 34b is formed at a second surface side which is an opposite surface of the first surface.

Further, the width of the receiving portion 34b may be formed to be larger than that of the through portion 34 a. For example, the first fastening slit 34 may be formed in a shape in which the width increases in a direction toward the accommodating portion 34 b.

As shown in fig. 12, the nut N may be inserted into the receiving portion 34b formed on the second surface of the coupling portion 31. The nut N may be integrally disposed within the receiving portion 34b without protruding to the outside of the coupling portion 31.

The through portion 34a is formed to have a width that enables insertion of the bolt B, and the width of the through portion 34a is formed to be smaller than the width of the nut N. Therefore, when the bolt B is coupled to the nut N disposed in the accommodating portion 34B, the nut N is not disposed and fixed within the accommodating portion 34B through the through portion 34 a.

In the case where the nut N is disposed to protrude from the lower surface of the coupling portion 31 to the outside, the protruding nut N and the measuring unit 90 coupled to the support frame 80 may interfere with each other. Therefore, the bonding position of the measurement unit 90 may be limited.

However, in the present embodiment, since the nut N is completely arranged inside the joint portion 31, the above-described problem can be solved.

In addition, as described above, even in the case where one end of the second reference frame 50 is slid without completely separating the bolt B and the nut N, the nut N can be moved in the state of being disposed in the accommodating portion 34B, and thus interference between the nut N and the measuring unit 90 can be prevented.

This configuration can be similarly applied to the second fastening slit 35 formed in a slit form or the third fastening slit 89 described later and the spoke frame 60 coupled thereto.

Referring to fig. 5, in the present embodiment, the second fastening slit 35 is formed in a slit shape having a shorter length than the first fastening slit 34. However, the constitution of the present invention is not limited thereto.

The base frame 39 and the support portion 20 according to the present embodiment configured as described above may be configured to be point-symmetrical with respect to the central slit 85a and line-symmetrical with respect to the fixed frame 30.

Referring also to these figures, the spoke frames 40, 50 and 60 are constructed similarly to the previously described fixed frame 30 and are removably coupled to the support portion 20. In addition, it may be selectively coupled to the aforementioned second to eighth fastening holes H2 to H8. Accordingly, it is possible to selectively arrange at a plurality of coupling positions having different angles with the fixed frame 30.

Each of the spoke frames 40, 50 and 60 is formed in an arc shape like the fixed frame 30, and has one end disposed on the center portion 38 side and the other end fastened to the support portion 20. To this end, the spoke frames 40, 50 and 60 may be provided with through

holes

86 and 87, respectively, at both ends.

The inside of the spoke frames 40, 50 and 60 may be formed with guide grooves 85. The guide slot 85 may be formed to penetrate the inside of the

spoke frame

40, 50 and 60 in an elongated slit form along the length direction of the

spoke frame

40, 50 and 60.

Like the fixed frame 30, the aforementioned measuring unit 90 may be coupled to the guide grooves 85 of the spoke frames 40, 50 and 60. For example, a fixing member such as a bolt may penetrate the guide groove 85 and be fastened to the measuring unit 90, whereby the measuring unit 90 may be disposed at various positions along the guide groove 85.

One end of the spoke frames 40, 50 and 60 can be coupled to the base frame 39 through the first to third fastening slits 34 to 89 formed in the coupling portion 31 or the auxiliary coupling portion 88. In addition, the other ends of the spoke frames 40, 50 and 60 may be coupled to the support part 20 through the second to eighth fastening holes H2 to H8.

The combination of each of the spoke frames 40, 50 and 60 and the base frame 39 can use additional securing members 82 such as bolts and nuts. For example, the spoke frames 40, 50 and 60 can be fixed and fastened to the base frame 39 by nuts coupled to the ends of the bolts after the bolts are inserted through the through holes 86 and one of the fastening slits 34, 35 and 89 that extend through the spoke frames 40, 50 and 60 in that order. In this case, even if the bolts are not completely separated from the nuts, it is possible to move one end of the

spoke frame

40, 50 and 60 in the length direction of the fastening slits 34, 35 and 89. Thus, it is very easy to change the coupling position of the spoke frames 40, 50 and 60.

The spoke frames 40, 50 and 60 can be formed such that the portions thereof that overlap the joint 31 or the auxiliary joint 88 are relatively thinner in thickness than the other portions. Thus, when the spoke frames 40, 50 and 60 are coupled to the base frame 39, the spoke frames 40, 50 and 60 may not protrude from the base frame 39 and form a smooth hemispherical shape with the fixed frame 30.

The spoke frames 40, 50 and 60 may be divided into

reference frames

40 and 50 and a sub-frame 60 according to shape and length.

One end of the reference frames 40 and 50 may be fastened to the central portion 38 and divided into the first reference frame 40 and the second reference frame 50 according to whether the auxiliary coupling portion 88 is provided or not.

Fig. 7 is a diagram showing a first reference frame according to the present embodiment, fig. 8 is a diagram showing a second reference frame according to the present embodiment, and fig. 9 is a diagram showing a third reference frame according to the present embodiment.

Referring to these figures together, the first reference frame 40 includes an auxiliary joint portion 88. The auxiliary joining portion 88 is configured similarly to the aforementioned outer joining portion 33, and is formed integrally with the first reference frame 40.

One end of the first reference frame 40 is coupled to the first fastening slit 34 provided in the coupling portion 31. Further, the other end of the first reference frame 40 is coupled to a fifth fastening hole H5 provided in the support 20.

In the case where the first reference frame 40 is coupled to the base frame 39, the outer side coupling portion 33 and the auxiliary coupling portion 88 are disposed at both sides of the first reference frame 40, respectively. Therefore, the auxiliary joint 88 may be provided on the first reference frame 40 in the following form: that is, when the first reference frame 40 is coupled to the base frame 39, the auxiliary coupling portion 88 is disposed in line symmetry with the outer coupling portion 33 at a position opposite to the outer coupling portion 33.

The auxiliary coupling portion 88 may be formed with a third fastening slit 89. The third fastening slit 89 may be arranged line-symmetrically to the second fastening slit 35 when the first reference frame 40 is coupled to the base frame 39.

Therefore, when the first reference frame 40 is coupled to the base frame 39, the third fastening slit 89 is formed as an arc-shaped slit concentric with and having the same radius as the second fastening slit 35, and thus, the distance between the second fastening slit 35 and the support portion 20 is configured to be the same as the distance between the third fastening slit 89 and the support portion 20.

As shown in fig. 3, the first reference frame 40 may be combined with two sub frames 60 in each divided area created by the fixing frame 30.

More specifically, the first reference frame 40 may be coupled to the support portion 20 in a state of being divided into two parts within one divided space defined by a space between two fixing frames 30 adjacently disposed. In addition, the two auxiliary frames 60 may be coupled to the support portion 20 in a form of dividing a space between the first reference frame 40 and the fixed frame 30 into two parts, respectively. At this time, one end of one auxiliary frame 60 is fastened to the second fastening slit 35, and one end of the other auxiliary frame 60 may be fastened to the third fastening slit 89.

In this case, the angle between the first reference frame 40 and the fixed frame 30 may be formed to be 45 °. Here, the above-mentioned angle may substantially refer to an azimuth angle. Therefore, the mounting structure 10 shown in fig. 3 can be used for measurement of a 1:1 ratio with an azimuth angle of 45 °.

On the other hand, in the present embodiment, the first reference frame 40 may include two forms in which the auxiliary coupling portions 88 are arranged in opposite directions to each other with reference to the guide groove 85. For example, both the form 40a shown in fig. 7 (b) and the form 40b shown in fig. 7(c) are included, and as shown in fig. 3, the first reference frames 40 of the two

forms

40a and 40b may be selectively combined according to the position where the outer combining portion 33 is disposed.

The second reference frame 50 is configured similarly to the first reference frame 40, and does not have the auxiliary joint portion 88 (fig. 7).

Accordingly, one end of the second reference frame 50 may be coupled to the first fastening slit 34 provided in the coupling portion 31. Further, as shown in fig. 12 and 13, the other end of the second reference frame 50 may be coupled to the sixth fastening hole H6 or the seventh fastening hole H7.

In one divided region, the second reference frame 50 may not be coupled to the support portion 20 together with the first reference frame 40, but one of the first and second reference frames 40 and 50 is selectively coupled to the support portion 20. In addition, the second reference frame 50 may be combined with at least one auxiliary frame 60.

The auxiliary frame 60 may be formed to be shorter than the reference frames 40 and 50 and fastened between the reference frames 40 and 50 and the fixing frame 30.

One end of the auxiliary frame 60 may be coupled to the second fastening slit 35 provided in the coupling portion 31 or to the third fastening slit 89 provided in the first reference frame 40. The other end of the sub-frame 60 may be changed according to the position at which the one end of the sub-frame 60 is coupled.

In the case of coupling one end of the auxiliary frame 60 to the second fastening slit 35, the other end of the auxiliary frame 60 may be coupled to any one of the second fastening hole H2, the third fastening hole H3, and the fourth fastening hole H4.

For example, as shown in fig. 3, in the case where the auxiliary frame 60 is coupled together with the first reference frame 40, when one end of the auxiliary frame 60 is coupled to the second fastening slit 35, the other end of the auxiliary frame 60 may be coupled to the second fastening hole H2.

In addition, as shown in fig. 12 to 13, in the case where the auxiliary frame 60 is coupled together with the second reference frame 50, one end of the auxiliary frame 60 may be coupled to the second fastening slit 35, and the other end may be coupled to the third fastening hole H3 or the fourth fastening hole H4.

On the other hand, as shown in fig. 3, in the case where the auxiliary frame 60 is coupled together with the first reference frame 40 and one end of the auxiliary frame 60 is coupled to the third fastening slit 89, the other end of the auxiliary frame 60 may be coupled to the eighth fastening hole H8.

At least one of the spoke frames 40, 50, and 60 of the mounting structure 10 of the present embodiment thus configured can be selectively coupled to a plurality of coupling locations. Here, the plurality of bonding positions are positions formed with different azimuth angles, respectively.

Accordingly, the spoke frames 40, 50, and 60 may be selectively coupled to the base frame 39 for use according to the kind or structure of the test object 1, and thus, the measuring unit 90 may be disposed at an optimal position corresponding to the kind or structure of the test object 1.

Which will be described in more detail below.

Fig. 12 is a plan view of a mounting structure for arranging measurement units at a ratio of 4:3, and fig. 13 is a plan view of a mounting structure for arranging measurement units at a ratio of 16: 9. Further, fig. 3 is a plan view of a mounting structure for arranging the measurement units at a ratio of 1: 1.

When the size or the type of the lens as the detection object 1 is different, the azimuth angle of the measurement unit 90 also needs to be changed. For this reason, the present embodiment provides the mounting structure 10 capable of arranging the measurement units 90 at various azimuth angles (45 °, 36.87 °, 29.36 °, and the like).

For example, as shown in fig. 3, the first reference frame 40 may be coupled to the base frame 39, and the auxiliary frames 60 may be disposed at both sides of the first reference frame 40, respectively. In this case, since the angle between the fixed frame 30 and the first reference frame 40 is 45 ° and the angle between the fixed frame 30 and the auxiliary frame 60 is 22.5 °, the measurement unit 90 may be arranged at a ratio of 1:1 (azimuth angle 45 °).

For another example, as shown in fig. 12, in the case where the auxiliary frame 60 and the second reference frame 50 are coupled to the base frame 39, the other end of the auxiliary frame 60 is coupled to the third fastening hole H3, and the other end of the second reference frame 50 is coupled to the sixth fastening hole H6, since the angle between the fixed frame 30 and the second reference frame 50 is 36.87 °, and the angle between the fixed frame 30 and the auxiliary frame 60 is 26.57 °, the measuring unit 90 may be arranged at a ratio of 4:3 (azimuth angle 36.87 °).

For another example, as shown in fig. 13, in the case where the auxiliary frame 60 and the second reference frame 50 are coupled to the base frame 39, the other end of the auxiliary frame 60 is coupled to the fourth fastening hole H4, and the other end of the second reference frame 50 is coupled to the seventh fastening hole H7, since the angle between the fixed frame 30 and the second reference frame 50 is 29.36 °, and the angle between the fixed frame 30 and the auxiliary frame 60 is 30.32 °, the measuring unit 90 may be arranged at a ratio of 16:9 (azimuth angle 29.36 °).

As such, the mounting structure 10 according to the present embodiment can detect and measure at various azimuth angles by selectively coupling the spoke frames 40, 50, and 60 to the base frame 39. Therefore, since it is not necessary to replace the entire mounting structure in order to detect or measure the detection object 1 at a different azimuth angle, the measurement is very easy to perform, and the measurement time can also be minimized.

Further, it is possible to minimize time consumed in a parallelism checking process performed along with replacement of the mounting structure or in a process of repeatedly separating and coupling the measurement unit from and to the mounting structure.

The present invention is not limited to the above-described embodiments, and various modifications are possible.

Fig. 14 and 15 are partially exploded perspective views schematically showing a mounting structure of a detection apparatus according to another embodiment of the present invention.

In the mounting structure of the embodiment shown in fig. 14 and 15, at least one of the fastening holes H2 to H8 provided in the support portion 20 is formed in a slit form. For example, the third to fourth fastening holes H3 to H4 are connected to each other and arranged within one slit S1, and the sixth to seventh fastening holes H6 to H7 are also connected to each other and arranged within one slit S2.

That is, the fastening holes H6 to H7 for the position change of the second reference frame 50 and the fastening holes H3 to H4 for the position change of the auxiliary frame 60 are respectively configured to be connected to each other and arranged within one slit S1 and S2.

In this case, the positions of the spoke frames 50 and 60 coupled to the support portion 20 side may be changed by sliding, as with the first to second fastening slits 34 to 35.

In the mounting structure body of the inspection device 200 shown in fig. 14, the widths of the slits S1 and S2 connecting the fastening holes are formed to be greater than or equal to the diameters of the fastening holes H3, H4, H6, and H7. In this case, the fixing members 84 coupled to the fastening holes H3, H4, H6, and H7 may be configured to include bolts and nuts, as the fixing members 82 coupled to the first, second, and third fastening slits 34, 35, and 89.

Therefore, in the case of changing the position of the auxiliary frame 60 coupled to the position of the third fastening hole H3, it is not necessary to completely separate the fixing member 84 coupled to the corresponding position from the support portion 20, but only to loosen the fixing member 84 (e.g., a bolt and a nut) to a degree of being able to slide, and it is possible to arrange the fixing member 84 at a position corresponding to the fourth fastening hole H4 along the slit S1 and then fix it. Thus, the position of the spoke frames 50 and 60 can be changed very easily.

In the mounting structure body of the inspection device 300 shown in fig. 15, the width of the slits S1 and S2 connecting the respective fastening holes H3, H4, H6, and H7 may be formed smaller than the diameters of the fastening holes H3, H4, H6, and H7.

Further, as for the fixing member 84, the thickness thereof in the radial direction may be partially formed small by removing a part of the shaft portion 84a, which is cylindrical, inserted into the above-described slits S1 and S2. For example, the minimum thickness of the shaft portion 84a may be less than or equal to the width of the slits S1 and S2.

Accordingly, the fixing member 84 may move along the slits S1 and S2 after rotating the shaft portion 84a such that the shaft portion 84a is inserted into the slits S1 and S2. Further, while being located in the fastening holes H3, H4, H6, and H7, the shaft portion 84a may be rotated to couple the fixing member 84 to the fastening holes H3, H4, H6, and H7.

Therefore, the fixing member 84 according to the present embodiment may not include a nut. However, it is not limited thereto.

In the thus configured mounting structure of the present embodiment, since the positions of the fastening holes H3, H4, H6 and H7 within the slits S1 and S2 are clearly distinguished, it is possible to easily arrange the spoke frames at desired positions.

Although the embodiments of the present invention have been described in detail hereinabove, the scope of the right of the present invention is not limited thereto, and it will be apparent to those of ordinary skill in the art that various modifications and variations can be made within the scope not departing from the technical idea of the present invention recited in the claims.

For example, the mounting structure disclosed in the above-described embodiment is exemplified as being formed in a dome shape, but may be formed in various modifications such as a flat shape. In addition, although the detection device of the above-described embodiment has been described taking a case of measuring the MTF value of the lens as an example, the detection device can be widely applied to other various detection devices.

Further, the respective embodiments may be implemented in combination with each other.

Description of the reference numerals

1: detecting an object

10: mounting structure

20: support part

30: fixing frame

38: center part

39: foundation frame

40: first reference frame

50: second reference frame

60: auxiliary frame

80: supporting frame

100. 200 and 300: detection device

Claims

1. A detection device, comprising:

a mounting structure arranged at a distance from the detection object; and

a plurality of measurement units attached to the mounting structure,

wherein the mounting structure includes:

a plurality of support frames for coupling the measuring units; and

a support portion to which the support frame is radially fixed and fastened,

wherein at least one of the plurality of support frames is detachably coupled to the support portion and selectively coupled to a plurality of coupling positions where the at least one support frame forms an angle different from the other support frames.

2. The detection device of claim 1, wherein the support frame comprises:

a base frame fixed and fastened to the support portion formed in a ring shape; and

a plurality of spoke frames, one end of which is arranged at a center side of the support part and the other end of which is fastened to the support part.

3. The detection apparatus of claim 2, wherein the base frame comprises:

a central portion disposed on a central axis of the support portion; and

and a plurality of fixing frames extending in a plurality of directions from the center portion.

4. The detection device of claim 3, wherein an end of at least one of the plurality of spoke frames is secured to the center portion.

5. The detection apparatus of claim 3, wherein the plurality of spoke frames comprises:

a reference frame having one end fastened to the central portion; and

an auxiliary frame formed to have a length shorter than that of the reference frame, and having one end fastened to the reference frame or the center portion.

6. The detection apparatus according to claim 5, wherein the reference frame is joinable to the support portion in a form of dividing a space between two fixing frames adjacently arranged into two parts.

7. The detection apparatus according to claim 5, wherein the auxiliary frame is coupled to the support portion in a form of dividing a space between the reference frame and the fixed frame into two parts.

8. The detector of claim 5, wherein the reference frame is at an angle of 45 ° to the fixed frame.

9. The detection apparatus of claim 5, wherein the reference frame is at an angle of 36.87 ° or 29.36 ° to the fixed frame.

10. The detection apparatus according to claim 5,

the center portion includes a joint portion disposed between the two support frames and to which one end of the spoke frame is joined, and

the coupling portion is provided with a fastening slit in the form of a through hole, and the spoke frame is coupled to the fastening slit.

11. The detection apparatus according to claim 10,

the fastening slits provided in the coupling portion include a first fastening slit to which the reference frame is coupled and a second fastening slit to which the auxiliary frame is coupled, and

the first fastening slit and the second fastening slit are arranged at a distance in a radial direction.

12. The detection apparatus according to claim 11,

the reference frame includes a first reference frame having an auxiliary joint portion at one end and a second reference frame not having the auxiliary joint portion, the auxiliary frame being joined to the auxiliary joint portion, an

Any one of the first reference frame and the second reference frame is selectively coupled to the support portion.

13. The detection apparatus according to claim 1,

the support frame has a guide groove formed inside in the form of a through hole along the longitudinal direction, an

The measuring unit is coupled to the support frame to enable selection of positions along the guide groove.

14. The detection device of claim 2, wherein the support has a fastening hole to which the spoke frame is fastened, and

the fastening hole is provided in plurality corresponding to the plurality of coupling positions.

15. The detection device of claim 14, wherein at least two of the plurality of fastening holes are disposed within one slit.

16. A mounting structure having a dome shape for mounting a plurality of measurement units for measuring an inspection object, comprising:

A plurality of support frames for coupling the measuring units; and

a support portion having an annular shape, and to which the support frame is radially fixed and fastened,

wherein at least one of the plurality of supporting frames is selectively coupled to a plurality of coupling positions formed with different azimuth angles.