WO2016143395A1 - 位置測定部を備えた部品及び測定方法 - Google Patents
位置測定部を備えた部品及び測定方法 Download PDFInfo
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- WO2016143395A1 WO2016143395A1 PCT/JP2016/051696 JP2016051696W WO2016143395A1 WO 2016143395 A1 WO2016143395 A1 WO 2016143395A1 JP 2016051696 W JP2016051696 W JP 2016051696W WO 2016143395 A1 WO2016143395 A1 WO 2016143395A1
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- plane
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- boundary line
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/002—Measuring arrangements characterised by the use of optical techniques for measuring two or more coordinates
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B2003/0093—Simple or compound lenses characterised by the shape
Definitions
- the present invention relates to a component having a position measuring unit and a measuring method.
- the conventional measuring method has the following problems. First, it takes time to cut parts. Second, the angle cannot be measured with high accuracy due to deformation of parts during cutting, burrs generated by cutting, and the like. Third, the measured angle value varies depending on how the cut surface is determined. As described above, it is difficult to measure the angle formed by the two planes of the component with high accuracy by the conventional measuring method.
- Patent Document 1 and Patent Document 2 a method of aligning two parts with a position marker corresponding to a position measuring unit has been developed.
- Patent Document 2 a method for measuring the angle formed by two planes of the component by the position measuring unit and a component configured to be able to measure the angle formed by the two planes by the position measuring unit have not been developed.
- the component according to the first aspect of the present invention is a component having a first plane and a second plane that forms a predetermined angle with respect to the first plane, and the second plane is the first plane. And at least three position measuring units arranged on the two planes at a sufficient distance from each other so that the second plane can be specified, and each position measuring unit is based on the second plane. And a tangent plane of the surface of each position measuring unit at a point on a boundary line between the second plane and the surface of each position measuring unit is parallel to the first plane. It is configured as follows.
- the position of the second plane is determined with reference to the position of the first plane, and the first plane and the second plane Can be measured with high accuracy. That is, when measuring the angle formed by the first plane and the second plane of the component of this aspect, it is not necessary to cut the component and measure the angle of the cut surface. Therefore, there is no need to cut parts, the measurement accuracy does not decrease due to deformation of parts during cutting, burrs generated by cutting, etc., and the angle measurement value may vary depending on how the cut surface is determined. Absent.
- the at least three position measuring units are arranged on the peripheral edge of the second plane.
- the position of the second plane is determined with high accuracy by at least three position measurement units arranged at the peripheral edge of the second plane, and the first plane and the second plane are The formed angle can be measured with high accuracy.
- the component according to the second embodiment of the first aspect of the present invention includes four position measuring units.
- the component according to the third embodiment of the first aspect of the present invention is used for optics.
- the component according to the fourth embodiment of the first aspect of the present invention is a component according to the third embodiment, and at least one of the first plane and the second plane is a prism surface.
- the component according to the fifth embodiment of the first aspect of the present invention is the component according to the third embodiment, wherein a lens is arranged in at least one of the first plane and the second plane. .
- the component according to the sixth embodiment of the first aspect of the present invention is a component according to the third embodiment, wherein at least one of the first plane and the second plane is a surface for installing an optical fiber. .
- the parts according to the seventh embodiment of the first aspect of the present invention each include at least three position markers corresponding to one position measuring unit.
- the component according to the eighth embodiment of the first aspect of the present invention is the component according to the seventh embodiment, wherein the boundary line length of each position marker is 0.1 millimeters to 3.0 millimeters. .
- a sufficient number of measurement points each of which corresponds to the size of one pixel of the image measurement device, can be arranged along the boundary line.
- the component according to the ninth embodiment of the first aspect of the present invention includes at least two position markers including at least one position marker corresponding to a plurality of position measurement units.
- the component according to the tenth embodiment of the first aspect of the present invention is a component according to any of the seventh to ninth embodiments, and the surface including the boundary line of each position marker is formed as a curved surface.
- the radius of curvature at the boundary of the curved surface is in the range of 0.03 millimeters to 0.2 millimeters.
- the position of the boundary line is clearly displayed in the image by reflection on the surface including the boundary line of the position marker.
- An angle measurement method is a component having a first plane and a second plane that forms a predetermined angle with respect to the first plane, and the second plane is On the second plane, there are provided at least three position measuring units arranged at a sufficient distance from each other so that the second plane can be specified, and each position measuring unit has the second plane. And the tangent plane of the surface of each position measuring unit at a point on the boundary line between the second plane and the surface of each position measuring unit is parallel to the first plane.
- the angle measurement method includes the steps of determining the positions of the boundary lines of the at least three position measurement units from the image of the second plane, and using the positions of the at least three position measurement units. Defining an angle between one plane and the second plane.
- the position of the second plane is set with reference to the position of the first plane.
- the position can be determined, and the angle between the first plane and the second plane can be measured with high accuracy. That is, in the angle measurement method of this aspect, it is not necessary to cut the part and measure the angle of the cut surface. Therefore, there is no need to cut parts, the measurement accuracy does not decrease due to deformation of parts during cutting, burrs generated by cutting, etc., and the angle measurement value may vary depending on how the cut surface is determined. Absent.
- the positions of the boundary lines of the at least three position measurement units are obtained using a plurality of pixels of the image.
- the measurement accuracy can be further improved.
- the measurement method is a measurement method for measuring the position of a target surface including a plurality of position measurement units.
- the plurality of position measuring units have a convex shape with respect to the target surface, and a tangent plane at each point on the boundary line with the target surface of the surface of each position measuring unit forms one plane.
- the tangent planes of the plurality of position measuring units are configured to be parallel to each other.
- the method includes the steps of determining the positions of the boundary lines of the plurality of position measurement units from the image of the target surface, and determining the position of the target surface from the positions of the boundary lines of the plurality of position measurement units. Including.
- the position of the target surface can be easily measured using the image of the target surface.
- FIG. 1 is a diagram for explaining components according to an embodiment of the present invention.
- the component of the present embodiment is an optical component 200 having a lens and a prism surface.
- the optical component 200 includes a reference plane 201, a plane 205 perpendicular to the reference plane 201, and a plane 203 that forms a predetermined angle (acute angle) with respect to the reference plane 201.
- the plane 203 is a prism surface.
- the reference plane 201 includes a plurality of lenses 301 arranged in a line.
- the plane 205 includes a plurality of lenses 305 arranged in a line.
- a light ray that enters a plurality of lenses 301 arranged in a line on the reference plane 201 and travels in a direction perpendicular to the reference plane 201 is reflected by the plane 203 in the optical component 200 and arranged in a line on the plane 205.
- the plurality of lenses 305 are configured to reach the plurality of lenses 305.
- the optical component 200 is incident on the lens 301 arranged in a line on the reference plane 201 and travels in a direction perpendicular to the reference plane 201 after passing through the lens 301 and the lens 305. It is comprised so that it may inject from 200.
- the plane 203 includes four position markers 101A, 101B, 101C, and 101D.
- the four position markers 101A, 101B, 101C, and 101D have a convex shape with the plane 203 as a reference.
- the position marker of the optical component is installed at a place other than the optically used area on the surface of the optical component.
- the four position markers 101A, 101B, 101C and 101D are used for measuring the angle formed by the plane 203 and the reference plane 201.
- the reference plane 201 corresponds to the first plane
- the plane 203 corresponds to the second plane.
- the angle formed by the first plane and the second plane is larger than 0 degree and smaller than 90 degrees.
- FIG. 2 is a flowchart for explaining a measurement method for determining an angle between the first plane and the second plane using four position markers.
- step S1010 in FIG. 2 the x, y, and z coordinates of the four position markers are determined.
- An x axis and ay axis that are orthogonal to each other are defined in a first plane (reference plane) 201.
- the z axis is determined so as to be orthogonal to the reference plane 201.
- a method for determining the x, y, and z coordinates of the four position markers will be described in detail later.
- a location that determines x, y, and z coordinates is referred to as a position measurement unit.
- four position markers form four position measuring units.
- the position of the second plane 203 is determined from the x, y, and z coordinates of the four position markers.
- the position of the second plane 203 may be determined by the least square method using four sets of x, y, z coordinates.
- the position of the plane can be specified.
- the four position markers 101A, 101B, 101C, and 101D are arranged at a sufficient interval so that the position of the second plane can be specified by the four sets of x, y, and z coordinates. You may arrange
- step S1030 of FIG. 2 the angle formed by the first plane 201 and the second plane 203 is obtained. Since the first plane 201 is included in the xy plane and the position of the second plane 203 is determined in step S1020, the angle between the two planes is obtained.
- FIG. 3 is a flowchart for explaining a method of determining the x, y, and z coordinates of the four position markers.
- an image of the second plane 203 is acquired from a direction perpendicular to the first plane (reference plane) 201 by the image measuring machine.
- step S2020 of FIG. 3 the acquired image is used to determine the x and y coordinates of the boundary of the position marker according to the following procedure.
- An arbitrary pixel in the image is set as the origin of the coordinate system. Pixels corresponding to the boundaries of the four position markers 101A, 101B, 101C, and 101D in the image are determined.
- the x coordinate of the position marker boundary is determined from the position of the origin pixel in the x-axis direction and the position of the pixel corresponding to the boundary of the position marker in the x-axis direction, and the position of the origin pixel in the y-axis direction and the position marker are determined.
- the y coordinate of the boundary of the position marker is determined from the position of the corresponding pixel in the y-axis direction.
- the boundary of the position marker that is, the position of the edge is determined by detecting the difference in light and shade of pixels in the image. Therefore, it is important that the boundary of the position marker is clearly displayed in the image.
- the accuracy of measurement using an image is limited by the pixel size of the image sensor of the image measuring machine. As an example, the measurement accuracy corresponding to the pixel size when an image is taken through a microscope is about 0.5 micrometers.
- the z coordinate of the boundary of the position marker is determined.
- the z-coordinate of the boundary of the position marker may be determined by measuring with the autofocus function of the image measuring machine. Alternatively, it may be determined by measuring with a non-contact displacement sensor using a laser.
- FIG. 4 is a view showing a cross section perpendicular to the first plane 201 of the component 200.
- the figure in the circle is an enlarged view of the vicinity of the position marker 101 ⁇ / b> A in a cross section perpendicular to the first plane 201 of the component 200.
- a line AX indicates a straight line that passes through the boundary between the position marker 101 ⁇ / b> A and the second plane 203 and is perpendicular to the first plane 201.
- a line TL indicates a tangent plane of the surface of the position marker 101A at the boundary between the surface of the position marker 101A and the second plane 203.
- the surface of the position marker 101A at the boundary may be a flat surface or a curved surface.
- the boundary is indicated by a point
- the tangent plane is indicated by a line.
- the line TL is orthogonal to the line AX. That is, the tangent plane (line TL in FIG. 3) of the surface of the position marker 101A at each point on the boundary line between the surface of the position marker 101A and the second plane 203 is orthogonal to the line AX, and the first plane 201 It is comprised so that it may be one plane parallel to.
- a boundary line between the surface of the position marker 101A and the second plane 203 is included in the tangent plane. In FIG. 4, this boundary line indicated by the intersection of the line AX and the line TL is perpendicular to the cross section shown in FIG. 4 and is parallel to the first plane 201.
- the angle formed between the tangent plane and the second plane 203 is equal to the angle formed between the first plane 201 and the second plane 203.
- FIG. 5 is a diagram showing a cross section perpendicular to the first plane 201 of the component 200 and a path of a light beam applied to the position marker.
- the figure in the circle is an enlarged view of the vicinity of the position marker 101A in a cross section perpendicular to the first plane 201 of the position marker 101A.
- the path of the light beam irradiated to the position marker is shown.
- the second plane 203 is irradiated with light in a direction perpendicular to the first plane 201.
- the tangent plane line TL in FIG.
- the plane of the position marker 101A at the boundary between the position marker 101A and the second plane 203 is configured to be parallel to the first plane 201. Therefore, of the light irradiated in the direction perpendicular to the first plane 201, the light L1 that has reached the surface of the position marker 101A near the boundary between the position marker 101A and the second plane 203 is the first The light is reflected in a direction perpendicular to the plane 201 and travels to the image measuring machine. Of the light irradiated in the direction perpendicular to the first plane 201, the light L2 that has reached the second plane 203 is measured by the second plane 203 at a predetermined angle with the first plane 201. It is not reflected in the direction toward the machine.
- the predetermined angle that is, the angle formed between the tangent plane and the second plane 203 is preferably in the range of 20 degrees to 70 degrees, and more preferably in the range of 30 degrees to 60 degrees. .
- the angle formed between the tangent plane of the position marker and the second plane at the boundary line between the position marker and the second plane is in the range of 20 degrees to 70 degrees, more preferably 30 degrees to 60 degrees. If it is within the range, the tangential plane may not be parallel to the first plane.
- the tangent planes of the plurality of position markers are preferably parallel to each other. If the tangent planes of the plurality of position markers are parallel to each other and the angle formed with the second plane is in the range of 20 degrees to 70 degrees, more preferably in the range of 30 degrees to 60 degrees, image measurement and If the direction of light irradiation is appropriately determined, an image having a clear boundary position between the position marker and the second plane can be obtained.
- FIG. 6 is an enlarged view of the position marker 101D.
- the boundary line between the position marker 101 ⁇ / b> D and the second plane 203 is configured to be parallel to the first plane 201. That is, the z coordinate of the point on the boundary line is constant.
- the length of the boundary line is such a length that five or more measurement points indicated by black dots can be secured.
- the size of one measurement point corresponds to the size of one pixel of the imaging device of the image measuring device.
- the length of the boundary line specifically ranges from 0.1 millimeters to 3.0 millimeters.
- the radius of curvature (R) at the boundary line of the surface of the position marker is preferably in the range of 0.03 millimeters to 0.2 millimeters. . If the curvature radius is in the above range, the position of the boundary line between the position marker and the second plane is clearly displayed in the image.
- the position marker 101D has been described with reference to FIG. 6, the same applies to other position markers.
- the position of the boundary line represented by a plurality of pixels in the image obtained by the image measuring device becomes clear, and the x and y coordinates of the boundary line can be easily identified.
- a plurality of sets of x, y, and z coordinates are determined at a plurality of measurement points corresponding to a plurality of pixels, and an average value of each coordinate is set as an x, y, and z coordinate of the position marker. In this way, by using a plurality of sets of x, y, and z coordinates, it is possible to expect a reduction in variation in measured values.
- FIG. 7 is a diagram showing the shape of the mold when the position marker has a concave shape.
- the hatched portion indicates the mold.
- FIG. 7B is an enlarged view of a portion A in FIG.
- the position marker has a concave shape
- the mold has a convex shape.
- the black portion in FIG. 7B remains without being processed, and the boundary line of the position marker is not clearly formed.
- FIG. 8 is a diagram showing the shape of the mold when the position marker has a convex shape.
- the hatched portion indicates the mold.
- FIG. 8B is an enlarged view of a portion B in FIG.
- the position marker has a convex shape
- the mold has a concave shape.
- the position marker has a convex shape with respect to the surface on which it is placed in order to form a clear boundary line of the position marker.
- FIG. 9 is a diagram for explaining a method of measuring an angle formed by two planes in a part.
- FIG. 9A is a diagram showing the measurement position of the angle. The position of the cross section indicated by the one-dot chain line AA and one-dot chain line BB is the measurement position.
- FIG. 9B is a diagram showing a cross section of the component at the position of the alternate long and short dash line AA, and the angle formed by the two planes measured in this cross section is 45 degrees.
- FIG. 9C is a diagram showing a cross section of the component at the position of the alternate long and short dash line BB, and the angle formed by the two planes measured in this cross section is 43.219 degrees.
- the angle varies depending on the measurement position (measurement direction).
- the method of the present invention since the coordinates of the positions of the two planes are specified, the above variation does not cause a problem.
- Table 1 is a diagram showing the results of measuring the angle of the prism surface by the conventional method of measuring the angle in the cross section of the component and the method of the present invention.
- 1, 2 and 3 indicate the first, second and third measurement values, respectively.
- the unit of angle is degrees.
- the “average value” in Table 1 is an average value of three measured values.
- the value of “6 ⁇ ” in Table 1 is a value obtained by estimating the value of ⁇ (standard deviation) from three measured values and multiplying the value by six.
- CP represents the process capability index, which is the ratio of variation to tolerance.
- the value of CP in Table 1 is a value obtained by dividing the tolerance width by 6 ⁇ . Generally, if the CP value is 1.33 or more, it is determined that the variation in the measured value is sufficiently within the tolerance range. Therefore, according to the measurement method of the present invention, it can be determined that a measurement accuracy of a tolerance range of 0.6 degrees, that is, ⁇ 0.3 degrees can be obtained.
- FIG. 10 is a diagram showing a component having a position marker on a surface having a plurality of grooves for arranging optical fibers.
- the position marker is indicated by a circle.
- the present invention is a component having a prism surface, an incident surface and an output surface having a lens shape, an incident surface and an output surface that are inclined with respect to each other, a surface having a plurality of grooves for arranging the optical fiber shown in FIG. Can be applied to.
- one position marker forms one position measuring unit.
- one position marker may have a plurality of position measuring units.
- FIG. 11 is a diagram showing a component 1200 according to another embodiment of the present invention.
- FIG. 12A is a perspective view of the component 1200
- FIG. 12B is a plan view of the component 1200.
- the component 1200 of the component 1200 includes two linear position markers 1101A and 1101B on a plane 1203. By using at least three positions including one position on the position marker 1101A and one position on the position marker 1101B as the position measurement unit, the angle formed by the plane 1203 and the plane 1201 can be measured.
- the position of a surface including a curved surface can be measured.
- a surface whose position is to be measured is a surface A.
- a plurality of position measuring units are provided on the surface A.
- the position measuring unit has a convex shape with respect to the surface A, and the tangent plane at each point on the boundary line with the surface A of the surface of the position measuring unit is configured to form one plane. Further, the tangent planes of the plurality of position measuring units are configured to be parallel to each other.
- the angle formed by the tangent plane of the surface of the position measurement unit and the tangent plane of plane A is preferably in the range of 20 degrees to 70 degrees, and more preferably in the range of 30 degrees to 60 degrees. More preferably.
- the coordinates of the boundary line of the position measuring unit can be obtained by the method shown in the flowchart of FIG.
- the position of the surface A can be determined by the coordinates of the boundary line of the position measuring unit obtained in this way.
- the center position of the spherical surface can be determined as a point equidistant from the three measurement units.
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
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Abstract
Description
Claims (14)
- 第1の平面と該第1の平面に対して所定の角度をなす第2の平面とを有する部品であって、
該第2の平面は、該第2の平面上に、該第2の平面を特定できるように互いに十分な間隔をあけて配置された少なくとも3個の位置測定部を備え、
それぞれの位置測定部は、該第2の平面を基準として凸の形状であり、該第2の平面と該それぞれの位置測定部の面との境界線上の点における、該それぞれの位置測定部の面の接平面が、該第1の平面と平行な平面を形成するように構成されている部品。 - 該位置測定部は、該第2の平面の周縁部に配置された請求項1に記載の部品。
- 4個の位置測定部を備えた請求項1または2に記載の部品。
- 光学用に使用される請求項1から3のいずれかに記載の部品。
- 該第1の平面及び該第2の平面の少なくとも一つがプリズム面である請求項4に記載の部品。
- 該第1の平面及び該第2の平面の少なくとも一つにレンズが配置された請求項4に記載の部品。
- 該第1の平面及び該第2の平面の少なくとも一つが光ファイバー設置用の面である請求項4に記載の部品。
- それぞれ、1個の位置測定部に対応する少なくとも3個の位置マーカを備えた請求項1から7のいずれかに記載の部品。
- それぞれの位置マーカの境界線の長さが0.1ミリメータから3.0ミリメータであり、それぞれの位置マーカの境界線の方向の長さが境界線の長さと同じである請求項8に記載の部品。
- 複数の位置測定部に対応する少なくとも1個の位置マーカを含む少なくとも2個の位置マーカを備えた請求項1から7のいずれかに記載の部品。
- それぞれの位置マーカの境界線を含む面が曲面で形成されており、該曲面の境界線における曲率半径は、0.03ミリメータから0.2ミリメータの範囲である請求項8から10のいずれかに記載の部品。
- 第1の平面と該第1の平面に対して所定の角度をなす第2の平面とを有する部品であって、
該第2の平面は、該第2の平面上に、該第2の平面を特定できるように互いに十分な間隔をあけて配置された少なくとも3個の位置測定部を備え、
それぞれの位置測定部は、該第2の平面を基準として凸の形状であり、該第2の平面と該それぞれの位置測定部の面との境界線上の点における、該それぞれの位置測定部の面の接平面が該第1の平面と平行になるように構成されている部品において、該第1の平面と該第2の平面との間の角度を定める角度測定方法であって、
該第2の平面の画像から該少なくとも3個の位置測定部の境界線の位置を定めるステップと、
該少なくとも3個の位置測定部の位置を使用して該第1の平面と該第2の平面との間の角度を定めるステップとを含む、角度測定方法。 - 該少なくとも3個の位置測定部の境界線の位置を、該画像の複数の画素を使用して求める請求項12に記載の角度測定方法。
- 複数の位置測定部を備えた対象面の位置を測定する測定方法であって、該複数の位置測定部は、該対象面に対して凸の形状であり、それぞれの位置測定部の面の、該対象面との境界線上の各点における接平面は、一つの平面を形成するようにされ、該複数の位置測定部の該接平面は互いに平行であるように構成され、
該対象面の画像から該複数の位置測定部の境界線の位置を定めるステップと、
該複数の位置測定部の境界線の位置から、該対象面の位置を定めるステップと、を含む測定方法。
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DE112016001137.7T DE112016001137B4 (de) | 2015-03-11 | 2016-01-21 | Mit Abschnitt zur Positionsbestimmung versehenes Element und Messverfahren |
CN201680014499.9A CN107430221B (zh) | 2015-03-11 | 2016-01-21 | 具备位置测定部的部件及测定方法 |
JP2017504896A JP6248236B2 (ja) | 2015-03-11 | 2016-01-21 | 位置測定部を備えた部品及び測定方法 |
US15/685,359 US10295336B2 (en) | 2015-03-11 | 2017-08-24 | Element provided with portion for position determination and measuring method |
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CN108896276A (zh) * | 2017-05-11 | 2018-11-27 | 纳卢克斯株式会社 | 位置测定方法以及部件 |
JP2020008715A (ja) * | 2018-07-06 | 2020-01-16 | コニカミノルタ株式会社 | レンズアレイ素子及び光ファイバーコネクター |
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JP2014137410A (ja) * | 2013-01-15 | 2014-07-28 | Furukawa Electric Co Ltd:The | 光モジュール、光モジュールの製造方法 |
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CN108896276A (zh) * | 2017-05-11 | 2018-11-27 | 纳卢克斯株式会社 | 位置测定方法以及部件 |
CN108896276B (zh) * | 2017-05-11 | 2022-02-25 | 纳卢克斯株式会社 | 位置测定方法以及部件 |
JP2020008715A (ja) * | 2018-07-06 | 2020-01-16 | コニカミノルタ株式会社 | レンズアレイ素子及び光ファイバーコネクター |
JP7096525B2 (ja) | 2018-07-06 | 2022-07-06 | コニカミノルタ株式会社 | レンズアレイ素子及び光ファイバーコネクター |
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CN107430221A (zh) | 2017-12-01 |
US20170350695A1 (en) | 2017-12-07 |
DE112016001137T5 (de) | 2017-11-30 |
US10295336B2 (en) | 2019-05-21 |
CN107430221B (zh) | 2020-05-19 |
DE112016001137B4 (de) | 2024-01-18 |
JP6248236B2 (ja) | 2017-12-20 |
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