JPH0726707U - Woven structure expansion inspection tool - Google Patents

Abstract

(57) [Summary] [Problem] To provide a magnifying inspection tool 1 capable of magnifying a woven structure such that one of a warp yarn and a weft yarn can be clearly seen but the other is hard to see. [Structure] A magnifying inspection tool 1 is configured by mounting a cylinder lens 4 having a cylindrical surface 4a on one side in a lens barrel 3.
By pressing the magnifying inspection tool 1 against the cloth 2 to be inspected and looking at the cloth through the cylinder lens 4 in a state where the axis of the cylindrical surface of the cylinder lens 4 is aligned with the warp thread 2a of the cloth 2, the warp thread 2a is moved in the weft direction. However, the weft thread 2b is not magnified, so that the space between the warp threads 2a is
The number etc. can be inspected clearly.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a woven structure expanding inspection tool used for expanding and inspecting a woven structure of a cloth.

[0002]

[Prior art]

 Conventionally, the woven structure of cloth has been inspected. For that purpose, the surface of the cloth is magnified with a magnifying glass, a microscope, and the like, and the number and intervals of warp and weft threads are inspected.

[0003]

[Problems to be solved by the device]

 However, conventional magnifiers and microscopes only magnify the surface of the cloth, so the warp and weft appear to intersect, and it is difficult to measure the number and spacing of warp or weft depending on the weave. There was a problem that there is.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a weaving structure enlargement inspection tool capable of emphasizing only warp yarns or weft yarns of a weaving structure.

[0005]

[Means for Solving the Problems]

 The present invention made to achieve such an object includes a lens barrel and a magnifying optical system mounted in the lens barrel, and the magnifying optical system includes a cylinder lens having a cylindrical surface on at least one side. A gist of the present invention is an inspecting tool for expanding a weave structure.

[0006]

[Action]

 When the weaving structure is inspected in the condition that the axial direction of the cylindrical surface of the cylinder lens is aligned with the warp direction of the weave structure of the cloth to be inspected, the cylinder lens of the above-configured weave structure inspection tool is However, the warp threads can be clearly seen by magnifying them in the direction perpendicular to them, that is, the weft thread direction, but the weft threads do not expand in the direction perpendicular to them, that is, the warp thread direction. After all, it becomes possible to enlarge the interval and thickness of only the warp threads and clearly emphasize them. Therefore, it is possible to easily see the number of warp threads, the interval, and the like. In addition, when this weaving texture enlargement inspection tool was rotated 90 degrees from the previous time and the weaving texture was viewed with the axial direction of the cylindrical surface of the cylinder lens aligned with the weft thread direction, this time only the weft thread was clearly emphasized. Can be seen.

[0007]

【Example】

 Hereinafter, a preferred embodiment of the present invention will be described. FIG. 1 is a schematic perspective view showing a woven structure enlargement inspection tool (hereinafter abbreviated as enlargement inspection tool) according to one embodiment of the present invention and a cloth to be inspected by the same, and FIG. 2 is an image enlargement by the enlargement inspection tool. 3 is a schematic cross-sectional view illustrating the principle of FIG. In FIGS. 1 and 2, 1 is a magnifying inspection tool, 2 is a cloth inspected by the magnifying inspection tool 1, 2a and 2b are warp and weft threads of the cloth 2, respectively. The magnifying inspection tool 1 includes a lens barrel 3 and a cylinder lens 4 mounted therein, which constitutes a magnifying optical system. Here, the cylinder lens is a lens having a cylindrical surface on at least one surface, and in this embodiment, as shown in FIG. 3, one surface is a cylindrical surface 4a and the other surface is a flat surface 4b. Shaped lens 4 is used. Such a cylinder lens 4 acts as a lens in a plane perpendicular to the axis Y-Y of the cylindrical surface [see FIG. 2 (a)], but in a plane parallel to the axis Y-Y of the cylindrical surface [FIG. (See (b)] does not have a lens function.

As shown in FIG. 2 (a), the cylinder lens 4 is attached to the lens barrel 3 by pressing the lower end of the lens barrel 3 against the cloth 2 and observing the upper end of the cylinder lens 4. It is set so that you can see the enlarged image by.

Next, a method of using the woven tissue expansion inspection tool 1 having the above configuration will be described. When it is desired to inspect the warp yarn 2a of the cloth 2, as shown in FIGS. 1 and 2, the tip of the magnifying inspection tool 1 is pressed against the cloth 2 and the axial direction of the cylindrical surface 4a of the cylinder lens 4 is the same as the warp yarn 2a. Match the direction. When the cloth 2 is viewed from the upper end of the magnifying inspection tool 1 in this state, the cylinder lens 4 functions as a lens in the plane perpendicular to the axis of the cylindrical surface 4a of the cylinder lens 4 as shown in FIG. 2 (a). , An enlarged image 2a 'of the warp yarn 2a of the cloth 2 is formed, which can be seen. In the plane parallel to the axis of the cylindrical surface 4a of the cylinder lens 4, as shown in Fig. 2 (b), The cylinder lens 4 does not serve as a lens, and merely sees the weft thread 2b of the cloth 2 as it is. Thus, as shown in FIG. 4, the image 2'obtained when the cloth 2 is viewed through the cylinder lens 4 is clear because only the warp yarn image 2a 'is enlarged in the direction perpendicular to the warp yarns, that is, in the weft yarn direction. However, the image 2b 'of the weft thread disappears without being magnified in the direction of the warp thread at right angles to it, and in the end, only the warp thread can be clearly emphasized. Therefore, it is possible to easily see the number of warp threads, the interval, and the like. When it is desired to see the weft thread 2b, the magnifying inspection tool 1 may be rotated 90 degrees from the state shown in FIGS. 1 and 2, and the axial direction of the cylindrical surface 4a of the cylinder lens 4 may be aligned with the direction of the weft thread 2b. . It is preferable to provide a scale plate in the field of view at the lower end of the lens barrel 3 so that the scale 5 can be seen together with the image 2'of the cloth 2 as shown in FIG.

In the above embodiment, the magnifying optical system is composed of only a single lens (cylinder lens), but it is also possible to combine a plurality of lenses as in the microscope. FIG. 5 shows an enlarged inspection tool 6 according to the embodiment in that case. The magnifying inspection tool 6 has a structure in which a magnifying optical system including an objective lens 8 and an eye lens 9 is mounted in a lens barrel 7, and the objective lens 8 is a cylinder lens having a cylindrical surface 8a. A circular lens having a normal spherical surface is used as the eye lens 9.

When the magnifying inspection tool 6 is set so that the axis of the cylindrical surface 8a of the objective lens 8 which is a cylinder lens is in the same direction as the warp threads 2a of the cloth 2, the cloth 2 is seen, and the objective lens is As shown in FIG. 5 (a), the objective lens 8 functions as a lens in the plane perpendicular to the axis of the cylindrical surface 8a of the lens 8, so that the objective lens 8 enlarges the warp thread 2a in the weft direction. ′ Is formed, and the eyepiece lens 9 forms a virtual image 2a ″, which is a further enlargement of the real image 2a ′, so that the enlarged virtual image 2a ″ can be seen. On the other hand, in the plane parallel to the axis of the cylindrical surface 8a of the objective lens 8, the objective lens 8 does not function as a lens, as shown in FIG. , The virtual image of the weft thread 2b cannot be formed, and the image is blurred and cannot be seen. Thus, with the magnifying inspection tool 6, only the warp yarn image 2a ″ appears to be greatly magnified and the weft yarns disappear, and the number of warp yarns, spacing, etc. can be easily inspected. When the weft thread 2b is viewed, the magnifying inspection tool 6 may be rotated 90 ° so that the axial direction of the cylindrical surface 8a of the object lens 8 coincides with the direction of the weft thread 2b.

In each of the above embodiments, the cloth 2 is viewed through the magnifying inspection tools 1 and 6 by eyes, but the present invention is not limited to this case, and the cloth 2 may be combined with a camera to take a picture or a video. It is also possible to display it on a monitor TV in combination with a camera. FIG. 6 shows an image display device in which a magnifying inspection tool according to an embodiment of the present invention is combined with a video camera. In FIG. 6, reference numeral 11 denotes a magnifying inspection tool according to an embodiment of the present invention, which includes a lens barrel 12 and a magnifying optical system including a first lens 13 and a second lens 14 provided therein. The first lens 13 used here is a cylinder lens having a cylindrical surface 13a, and the second lens 14 is a circular lens having an ordinary spherical surface. A video camera 15 includes a lens barrel 16 and a CCD 17 provided therein. The magnifying inspection tool 11 is rotatably fitted in the lens barrel 16. Reference numeral 18 is an image processing device for processing signals from the CCD 17, 19 is a monitor television for displaying images, 20 is an image recording device for recording images, 21 is a light source for illuminating the cloth 2, 22 is light from the light source. An optical fiber 23 for guiding light is a light emitting portion for emitting light toward the cloth 2.

Next, a method of using the device having the above configuration will be described. The cloth 2 to be inspected is set in a predetermined position in front of the magnifying inspection tool 11, and the magnifying inspection tool 11 is rotated to set the axis of the cylindrical surface 13a of the first lens 13 which is a cylinder lens in the same direction as the warp thread 2a. Set so that In this state, as shown in FIG. 6, in the plane perpendicular to the axis of the cylindrical surface 13a of the first lens 13, the first lens 13 functions as a lens, so that the first lens 13 is warped. A real image 2a 'obtained by enlarging 2a in the weft direction is formed, and the second lens 14 forms a real image 2a' 'obtained by further enlarging the real image 2a' on the CCD 17. On the other hand, in the plane parallel to the axis of the cylindrical surface 13a of the second lens 13, as shown in FIG. 7, since the second lens 13 does not function as a lens, a real image obtained by enlarging the weft thread 2b is formed on the CCD 17. It is not imaged. Thus, only the real image 2a ″ obtained by enlarging the warp yarn in the weft direction is formed on the CCD 17, and the CCD 17 outputs an electric signal corresponding to the real image 2a ″. The image processing device 18 processes the signal from the CCD 17 and outputs it to the monitor television 19, and the monitor television 19 displays the image. Thus, the monitor TV 19 displays an image in which only the warp yarns 2a are enlarged in the weft yarn direction, and the operator can easily recognize the interval and the number of the warp yarns 2a of the cloth 2 from the image. When it is desired to inspect the weft thread, the magnifying inspection tool 11 may be rotated so that the axial direction of the cylindrical surface 13a of the first lens 13 coincides with the weft thread direction. It should be noted that the image displayed on the monitor television 19 can be recorded by the image recording device 20 as needed.

[0014]

[Effect of device]

 As is clear from the above description, since the woven texture enlargement inspection tool of the present invention has a magnifying optical system equipped with a cylinder lens attached to the lens barrel, the axis of the cylindrical surface of the cylinder lens is By matching the direction of the warp or weft of the cloth to be inspected, it is possible to see only the warp or only the weft in a direction orthogonal to it, and to easily inspect the number and spacing of the warp or weft. It has the effect of being able to

[Brief description of drawings]

FIG. 1 is a schematic perspective view showing a woven structure expansion inspection tool and a cloth to be inspected by the same according to an embodiment of the present invention.

FIG. 2 illustrates the principle of image enlargement by the magnifying inspection tool shown in FIG. 1, in which (a) shows the magnifying inspection tool in a plane perpendicular to the axis of the cylindrical surface of the cylinder lens used therein. A schematic sectional view cut and shown, (b) shows the enlarged inspection tool,
Schematic cross-sectional view cut along a plane parallel to the axis of the cylindrical surface of the cylinder lens

FIG. 3 is a schematic perspective view of a cylinder lens used in the magnifying inspection tool shown in FIG.

FIG. 4 is a schematic plan view showing a state in which cloth is viewed with the enlarged inspection tool shown in FIG.

FIG. 5 illustrates the principle of image enlargement by a magnifying inspection tool according to another embodiment of the present invention, in which (a) shows the magnifying inspection tool on the axis of the cylindrical surface of the cylinder lens used therein. A schematic cross-sectional view cut along a right-angle plane, (b) is a schematic cross-sectional view showing the magnified inspection tool cut along a plane parallel to the axis of the cylindrical surface of the cylinder lens.

FIG. 6 is a diagram showing a schematic configuration of an image display device using a magnifying inspection tool according to still another embodiment of the present invention, in which the magnifying inspection tool is arranged on the axis of the cylindrical surface of the cylinder lens used therein. Schematic cross-sectional view cut at a right angle

FIG. 7 is a schematic cross-sectional view showing the magnifying inspection tool shown in FIG. 6 taken along a plane parallel to the axis of the cylindrical surface of the cylinder lens.

[Explanation of symbols]

 1 magnifying inspection tool 2 cloth 2a warp thread 2b weft thread 3 lens barrel 4 cylinder lens 4a cylindrical surface 6 magnifying inspection tool 7 lens barrel 8 objective lens 8a cylindrical surface 9 eye lens 11 magnifying inspection tool 12 lens barrel 13 first lens 13a cylindrical surface 14 second lens 15 CCD camera 16 lens barrel 17 CCD

Claims (1)

[Scope of utility model registration request] 1. A weave comprising a lens barrel and a magnifying optical system mounted in the lens barrel, the magnifying optical system including a cylinder lens having a cylindrical surface on at least one side. Tissue expansion inspection tool.