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WO2019074036A1 - Marqueur - Google Patents

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Publication number
WO2019074036A1
WO2019074036A1 PCT/JP2018/037843 JP2018037843W WO2019074036A1 WO 2019074036 A1 WO2019074036 A1 WO 2019074036A1 JP 2018037843 W JP2018037843 W JP 2018037843W WO 2019074036 A1 WO2019074036 A1 WO 2019074036A1
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WO
WIPO (PCT)
Prior art keywords
lens
lens unit
marker
detected
unit group
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2018/037843
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English (en)
Japanese (ja)
Inventor
共啓 斉藤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Enplas Corp
Original Assignee
Enplas Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Enplas Corp filed Critical Enplas Corp
Publication of WO2019074036A1 publication Critical patent/WO2019074036A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • 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

Definitions

  • the present invention relates to a marker.
  • AR Augmented Reality
  • visual recognition markers are used to recognize the position, posture, and the like of an object.
  • the marker for example, a marker in which a lenticular lens is disposed on a black stripe pattern is reported (Patent Document 1).
  • the lenticular lens is generally a lens body in which cylindrical lenses obtained by dividing a cylinder in the axial direction are continuously arranged such that the axial direction is parallel.
  • a cylindrical lens also referred to as a lens portion
  • the pitch is the lens portion To be disposed on the striped pattern so as to be different from the pitch of
  • the tilt of the optical axis may cause an aberration, and the image of the detected unit may not appear clear.
  • an object of the present invention is to provide a marker capable of suppressing the occurrence of aberration in each lens unit due to the inclination of the optical axis, making the image from the detected unit appear clearly, and detecting it.
  • the marker of the present invention is Including the lens body,
  • the lens body is On one surface side, it has a plurality of lens parts arranged continuously in the plane direction, In the other surface side, it has a plurality of detected parts which can be detected from the one surface side and correspond to the respective lens parts,
  • the pitches of the plurality of lens portions and the pitches of the plurality of detected portions are different,
  • the plurality of lens portions are Each of the entire surface having an inclination of more than 0 ° with respect to the central axis direction is an optical function unit,
  • the upstream lens unit group and the downstream lens unit group are
  • Each lens portion has an aspheric shape that is asymmetrical with respect to the central axis,
  • Each lens unit is It is characterized in that the light is condensed on each corresponding detection target according to each cross-sectional shape.
  • the light is collected by focusing the light on the corresponding detected portions according to the cross-sectional shapes of the reference lens portion, the upstream lens portion group, and the downstream lens portion group. It is possible to suppress the occurrence of aberration in each lens unit due to the inclination of the axis, make the image from the detected unit appear clearly, and improve the detection accuracy of the marker.
  • FIG. 1A is a top view showing an example of a lens body in the marker of Embodiment 1
  • FIG. 1B is a cross-sectional view of the marker viewed from the II direction in FIG. .
  • FIG. 2 is a cross-sectional view of the lens body in the marker of the first embodiment.
  • FIG. 3 is a cross-sectional view of the lens body in the marker of the first embodiment, and shows an outline of light collection.
  • FIG. 4 is a cross-sectional view of the marker of the reference example, showing an outline of light collection.
  • FIG. 5 is a view schematically showing an optical path of light at an optical axis of 20 ° in the marker of the first embodiment and the marker of the reference example.
  • FIG. 6A is a graph showing the shape of each lens portion in the marker of Embodiment 1
  • FIG. 6B is a graph showing the shape of the central portion of each lens portion.
  • each lens portion of the upstream side lens portion group has a different aspheric shape
  • the downstream side lens portion group Each lens portion has a different aspheric shape
  • the pitch of the lens units is equal.
  • the pitch of the lens unit is larger than the pitch of the detection target.
  • each lens unit has a curvature radius R n of a surface close to the reference lens unit and the reference lens unit And the radius of curvature R f of the surface of the far half satisfy the relationship of R n > R f .
  • the pitch of the lens unit is smaller than the pitch of the detection target.
  • each lens unit has a curvature radius R n of a surface close to the reference lens unit and the reference lens unit And the radius of curvature R f of the surface far from the point satisfy the relationship of R n ⁇ R f .
  • the marker according to the present invention is, for example, a difference between a curvature radius R u of each lens portion and a curvature radius R s of the reference lens portion in the upstream lens portion group and the downstream lens portion group (R u ⁇ R The absolute value of s ) increases with distance from the reference lens portion.
  • the lens unit is a cylindrical lens.
  • the lens body is an integrally molded article.
  • Embodiment 1 is an example of the marker of the present invention.
  • FIG. 1 shows an example of the lens body in the marker of this embodiment.
  • FIG. 1 (A) is a plan view seen from above the marker 1
  • FIG. 1 (B) is a cross-sectional view of the marker 1 seen from the II direction of FIG. 1 (A).
  • FIG. 1 (B) hatches representing cross sections are omitted in consideration of legibility. The same applies to the other cross-sectional views below.
  • the arrow X is referred to as the width direction
  • the arrow Y as the length direction
  • the arrow Z as the thickness direction.
  • the X1 direction toward the left is referred to as the upstream, and the X2 direction toward the right is It is called downstream.
  • a dotted line C in the Z direction indicates the central axis of each lens unit.
  • the central axis is an axis in the thickness direction passing through the center in the width direction X in each lens portion.
  • the marker 1 includes a lens body 10.
  • the lens body 10 has a plurality of lens portions arranged continuously in the planar direction on one surface side, that is, the upper surface side in FIG. 1B, and the other surface side, that is, FIG. And a plurality of detection target portions that can be detected from the one surface side and correspond to the respective lens portions.
  • it is a point that the light is condensed on each corresponding detected portion by making the plurality of lens portions have the following cross-sectional shapes, and the other configuration etc. It is not restricted.
  • Each of the plurality of lens portions has an optical function portion over the entire surface area having an inclination of more than 0 ° with respect to the central axis C direction.
  • optical function part means to transmit or refract and collect light arriving from the outside.
  • the lens part whose entire surface is an optical function part may have, for example, an aspheric convex shape having a curvature on the entire surface. The curvature can be determined as appropriate.
  • the lens main body 10 of FIG. 1 (B) which is a specific example is a form which has a level
  • the lens portion 112 b has a surface at 0 ° with respect to the central axis C direction at the boundary with the lens portion 112 a on the lens portion 112 a side.
  • the entire surface having curvature is the optical function portion, and the surface at 0 ° (that is, the surface having no curvature) is not the optical function portion.
  • each lens is designed so that light may condense on each corresponding to-be-detected part by each cross-sectional shape.
  • the plurality of lens units are continuously arranged in the X direction, that is, in the width direction.
  • the arrangement direction of the plurality of lens portions will be described as the width direction X
  • the perpendicular direction to the continuous arrangement direction will be described as the thickness direction Z.
  • the plurality of lens units have a lens unit at an arbitrary position as a reference lens unit 111, and further, an upstream side lens unit group 112 continuously disposed on the upstream side of the reference lens unit 111 And a downstream lens unit group 113 continuously disposed downstream.
  • a lens surface 11 is formed on one surface side of the lens body 10 by the reference lens portion 111, the upstream lens portion group 112, and the downstream lens portion group 113.
  • the number of the lens portions in the lens body 10 is nine in FIG. 1, this is an example, and the present invention is not limited thereto.
  • the number of reference lens units may be two.
  • the number of lens portions in the upstream side lens portion group 112 and the number of lens portions in the downstream side lens portion group 113 may be, for example, the same or different.
  • the number of lens portions in the lens body 10 is not particularly limited, and is, for example, 221, 101, or 51.
  • the lens unit is a cylindrical lens.
  • the lens unit is also called, for example, a lenticular lens.
  • the size of each lens portion is not particularly limited, and can be appropriately determined according to, for example, the number of the lens portions, the use of the marker 1, and the like.
  • the length W1 in the width direction X is, for example, 1 mm, 0.5 mm, 0.37 mm
  • the length in the length direction Y is, for example, 25 mm, 5 mm
  • the length (thickness) passing through the axis C is, for example, 1.7 mm, 1 mm, 0.6 mm.
  • the reference lens portion 111 preferably has, for example, an aspheric shape which is symmetrical with respect to the central axis C, and in that case, the vertex thereof is on the central axis C.
  • the radius of curvature of the reference lens portion 111 increases from the vertex toward the adjacent lens portion, and the radius of curvature (R) may increase continuously or intermittently, for example. May be
  • the radius of curvature of the reference lens portion 111 can be represented, for example, by the radius of curvature of the apex, and as a specific example, it is in the range of 0.25 to 1 mm.
  • “symmetry” includes, for example, substantially the same meaning as long as the same function is exhibited, in addition to being completely identical in shape.
  • the respective lens portions 112a, 112b, 112c, 112d of the upstream side lens portion group 112 and the respective lens portions 113a, 113b, 113c, 113d of the downstream side lens portion group 113 are Each has an aspheric shape that is asymmetrical with respect to the central axis C.
  • the upstream side lens unit group 112 has, for example, different aspheric shapes for each lens unit, and the shape changes as the lens unit is separated from the reference lens unit 111.
  • each lens unit has a different aspheric shape, and the shape changes as it is separated from the reference lens unit 111.
  • the apexes thereof change so as to be positioned farther on the surface than the intersection with the central axis C.
  • the radius of curvature of each of the lens units increases from the vertex toward the adjacent lens unit, and the radius of curvature (R) is, for example, It may increase continuously or may increase intermittently.
  • the asymmetry of each lens portion can be defined, for example, by the radius of curvature of the surface near the reference lens portion 111 and the radius of curvature of the surface far from the reference lens portion 111, and the radius of curvature of the one and the other The radius of curvature may be different.
  • the entire curvature radius is, for example, the curvature radius of a curve passing through both ends of the lens portion and the central axis
  • the one curvature radius and the other curvature radius are, for example, lenses
  • the magnitude relationship between the one radius of curvature and the other radius of curvature can be determined, for example, from the shape of the lens portion.
  • the upstream-side lens unit group 112 is the difference between the curvature radius R u of each of the lens portions 112 a, 112 b, 112 c, and 112 d and the curvature radius R s of the reference lens portion 111 (R u ⁇ The absolute value of R s ) increases with distance from the reference lens unit 111.
  • the lens portion 112d farthest from the reference lens portion 111 has a difference between the curvature radius R u and the curvature radius R s of the reference lens portion (R u ⁇ R s It is preferable that the absolute value of) is larger than that of the other lens portions 112a, 112b and 112c.
  • a difference between the curvature radius R u of each of the lens portions 113 a, 113 b, 113 c and 113 d and the curvature radius R s of the reference lens portion 111 increases with distance from the reference lens unit 111.
  • the lens unit 113d farthest from the reference lens unit 111 has a difference between the curvature radius R u and the curvature radius R s of the reference lens unit (R u ⁇ R s Is preferably larger than the other lens portions 113a, 113b, and 113c.
  • the overall shape of the upstream side lens unit group 112 and the overall shape of the downstream side lens unit group 113 are symmetrical.
  • the upstream lens unit 112a and the downstream lens unit 113a, and the lens unit 112b and the lens unit 113b which are at symmetrical positions with respect to the reference lens unit 111
  • the lens portion 112 c and the lens portion 113 c, and the lens portion 112 d and the lens portion 113 d have symmetrical shapes. Therefore, the overall shape of the upstream side lens portion group 112 and the overall shape of the downstream side lens portion group 113 are symmetrical.
  • “symmetry” includes, for example, substantially the same meaning as long as the same function is exhibited, in addition to being completely identical in shape.
  • the pitch of the plurality of lens portions means the pitch P1 between the adjacent lens portions in the width direction X.
  • the pitch P1 between adjacent lens portions is the distance between the midpoints of the widths W1 of the lens portions in adjacent lens portions, and is, for example, the same as the width W1 of the lens portions in the width direction X .
  • the pitches P1 of the respective lens portions of the upstream side lens portion group 112, the reference lens portions 111, and the respective lens portions of the downstream side lens portion group 113 may be the same or different, for example.
  • the lens body 10 can be detected from the one surface side on the other surface side, that is, the lower surface side in FIG. 1B, and a plurality of objects corresponding to the respective lens portions
  • the detection unit 200 is included.
  • the detection target portion 200 is a line extending along the length direction Y of the lens body 10, and a stripe pattern is formed by a plurality of lines.
  • the plurality of detection target portions 200 can be optically detected by being projected on the upper surface side of the lens main body 10 as an optically detectable image.
  • the shape of the portion to be detected in the present invention is not limited to this, and the shape of the portion to be detected 200 may be, for example, a shape in which points (dots) are aligned in the longitudinal direction Y.
  • the outline of the pitch P2 of the to-be-detected part 200 is collectively shown in FIG.
  • the pitch of the plurality of detected parts 200 is different from the pitch P1 of the plurality of lens parts.
  • the pitches of the plurality of detection target portions 200 mean the pitch P2 between the adjacent detection target portions 200 in the width direction X.
  • a pitch between adjacent detection target portions is, for example, a distance between the centers of the adjacent detection target portions 200 in the width direction X.
  • the center of the detection target 200 is, for example, a middle point in the width direction X and a middle point in the length direction Y.
  • the pitches P2 of the plurality of detection target parts 200 may be, for example, the same or different, and are preferably equal pitches.
  • the width W2 in the width direction X of the detection target portion 200 is not particularly limited, and is, for example, 45 ⁇ m, 30 ⁇ m, or 10 ⁇ m.
  • the width of the detection target portion 200 can be appropriately determined, for example, according to the pitch P1 between the adjacent lens portions.
  • the ratio of the width W2 of the detection target portion 200 to the pitch P1 between the lens portions is, for example, 1: 200 to 1: 5.
  • the marker of the present embodiment has, for example, an apex of the reference lens unit 111 on the central axis C of the reference lens unit 111 and a detected unit 200 corresponding to the reference lens unit 111. Therefore, when the marker of the present embodiment is observed, for example, from the direction in which the marker is directly opposed to the marker, that is, the direction in which the central axis C of the reference lens unit 111 is the optical axis (0 °), An image of the detected portion 200 corresponding to the reference lens portion 111 is observed.
  • the “pitch of the plurality of lens portions” and the “pitch of the plurality of detected portions” are different.
  • the other lens portions are continuously arranged on the upstream side and the downstream side at an arbitrary pitch P1, and at an arbitrary pitch P2 different from the pitch P1.
  • the other detection target 200 is continuously arranged on the upstream side and the downstream side.
  • the pitch P1 of the lens unit may be larger than the pitch P2 of the detection target 200, or may be smaller than the pitch P2 of the detection target 200.
  • each lens unit is based on the central axis C. It is preferable that the curvature radius R n of the half surface near the reference lens portion 111 and the curvature radius R f of the half surface far from the reference lens portion 111 satisfy the relationship of R n > R f .
  • each lens unit has the central axis C It is preferable that the radius of curvature R n of the half surface near the standard lens portion 111 and the radius of curvature R f of the half surface far from the standard lens portion 111 satisfy the relationship of R n ⁇ R f based on the standard.
  • the lens body 10 may be formed, for example, by connecting a plurality of separately prepared lens units, that is, a lens unit having the lens unit, or may be an integrally molded article.
  • the lens body 10 is, for example, an injection molded product, and in particular, in the case of the integrally molded product, preferably an injection molded product.
  • the plurality of lens portions be connected to the adjacent lens portions without a gap.
  • the lens body 10 is, for example, a translucent member.
  • the light-transmissive member is not particularly limited, and examples thereof include resin and glass.
  • the resin include polycarbonate, acrylic resin such as polymethyl methacrylate (PMMA), cycloolefin polymer (COP), cycloolefin copolymer (COC) and the like.
  • the size of the lens body 10 is not particularly limited, and can be determined as appropriate according to, for example, the number of lens portions, the use of the marker 1, and the like.
  • the lens body 10 has, for example, a length (width) in the width direction X of, for example, 110 mm, 20 mm, a length in the length direction Y of, for example, 25 mm, 5 mm, and a thickness direction passing through the central axis C
  • the length (thickness) of Z is, for example, 1 mm, 0.6 mm, or 1.7 mm.
  • the detection target portion 200 only needs to be optically detectable from the one surface side, and examples thereof include a colored film.
  • the color of the colored film is not particularly limited, and is, for example, black.
  • the colored film is, for example, a coating film and can be formed by a paint.
  • the paint is not particularly limited, and may be, for example, a liquid paint or a powder paint.
  • the paint can form the coating film, for example, by applying or fixing after application. Examples of the application method include spray application and screen printing. Examples of the fixing method include drying of the liquid paint, curing of a curing component (for example, a radically polymerizable compound etc.) in the paint, baking of the powder paint, and the like.
  • the to-be-detected part 200 may be disposed, for example, so as to be positioned inside the lens main body 10 with reference to the exposed surface on the other surface side of the lens main body 10, or to project outside from the lens main body 10 It may be located at
  • the other surface of the lens body 10 has a recess that is recessed inside, and the colored film is disposed in the recess.
  • the other surface of the lens body 10 is flat, and the colored film is disposed (laminated) on the flat surface.
  • the other surface of the lens body 10 may have a convex portion, and the colored film may be disposed (laminated) at the protruding end of the convex portion.
  • the other surface (lower surface) of the lens body 10 has the concave portion, and a colored film or the like is disposed in the concave portion to form the detection portion 200. It is an example of the form that
  • the detected unit 200 may be, for example, optically distinguishable.
  • optically distinguishable means, for example, that the detected portion 200 can detect an optically significant difference as compared with the other regions.
  • An optically significant difference means, for example, having a significant difference in optical characteristics. Examples of the optical characteristics include lightness, saturation, hue such as hue, intensity of light such as luminance, and the like.
  • the optically significant difference may be, for example, a difference that can be confirmed visually or a difference that can be confirmed by an optical detection device such as a camera.
  • the to-be-detected part 200 emits fluorescence for example, the difference which can be confirmed by operation, such as irradiation of a UV lamp, may be sufficient.
  • the pattern formed by the detection target 200 is not limited at all.
  • the color depths forming the stripe pattern may be, for example, the same or may be shades.
  • the detection part 200 for example, black
  • the light absorbed by the colored film is transmitted through the lens body 10 and reflected on the surface of the object. Therefore, an image (for example, a black line) of the detection target 200 is projected on the white background on the upper surface of the lens body 10.
  • FIG. 3 is a cross-sectional view of a region including the reference lens portion 111 and the upstream lens portion group 112 in the marker 1 of FIG.
  • each lens unit has a detection target at the same position as that in FIG. 1, but is not shown for convenience.
  • the downstream side lens unit 113 is omitted in FIG. 3, the downstream side lens unit 113 is symmetrical to the upstream side lens unit 112 with the reference lens unit 111 as a center, and is similar to FIG. 1.
  • the reference lens portion 111 has an apex on its central axis C and has a corresponding detected portion 200, and for the optical axis (0 °) in the direction coaxial with the central axis C.
  • the lens portion 112a, the lens portion 112b, the lens portion 112c, and the lens portion 112d are lenses for optical axes (5 °, 10 °, 15 °, 20 °) inclined at a predetermined angle from the central axis C. It is.
  • FIG. 6 is a graph showing a curved surface shape in a cross section in the thickness direction for the reference lens portion 111 and each lens portion 112 a, 112 b, 112 c, 112 d of the upstream lens portion group 112.
  • FIG. 6A is a graph showing the overall curved surface shape of each lens unit
  • FIG. 6B is a graph showing the curved surface shape around the central axis C (central portion) of each lens unit.
  • the X axis of the graph indicates the shape in the width direction X
  • the zero position is the central axis C of the lens unit
  • the Y axis of the graph indicates the shape in the thickness direction Z.
  • the reference lens unit 111 for the optical axis 0 ° has an aspheric shape (curved surface shape) symmetrical with respect to the central axis C.
  • the lens portions 112a, 112b and 112c, and the lens portion 112d are apexes as the optical axes are inclined to 5 °, 10 °, 15 ° and 20 °.
  • the radius of curvature of the curved surface closer to the reference lens portion 111 is smaller than the point of intersection with the central axis C and compared to the reference lens portion 111, and the curved surface far from the reference lens portion 111 has a curvature The radius is getting bigger.
  • the reference lens unit 111 condenses the light at the corresponding detection target 200, and the light at the optical axis 5 ° reaches Then, the lens portion 112a refracts the light on its surface, condenses the light on the corresponding detected portion 200, and when the light having an optical axis of 10 ° reaches, the lens portion 112b refracts the light on its surface
  • the lens unit 112c refracts the light on the surface and condenses the light on the corresponding detection target 200, When light at an optical axis of 20 ° arrives, the lens portion 112d refracts the light at the surface and condenses the light on the corresponding detection target 200.
  • the marker 1 is designed to change the curved surface of each lens section in the cross section in the thickness direction according to the optical axis, and to focus light on the detected section 200 to which each lens section corresponds. ing. Therefore, as described above, in each of the lens units, occurrence of aberration can be suppressed, and an image of the detection target 200 can be developed and detected with higher accuracy.
  • FIG. 4 is a cross-sectional view of the marker 4 of the reference example, and all the lens portions have the same shape as the aspheric reference lens portion 111 in the marker 1 of the first embodiment.
  • each lens unit has a detection target at the same position as the marker of FIG. 3 (that is, the same position as the marker of FIG. 1), but is not shown for convenience.
  • the lens portion 111 at the right end condenses the light at the position of the detection portion, but the other lens portions 111a, 111b, 112c, In the case of 112 d, as the distance from the reference lens unit 111 increases, the focal point shifts more (circled area in FIG. 4), and light is not sufficiently collected at the position of the detection target. For this reason, in each said lens part, an aberration generate
  • FIG. 5A when light at an optical axis of 20 ° reaches the marker 1 of the first embodiment, the lens unit refracts the light at the surface, and the light is transmitted to the corresponding detection target unit 200. Focus.
  • FIG. 5B when light at an optical axis of 20 ° reaches the marker 4 of the reference example, the lens unit corresponds to the same position as the marker 1 of the first embodiment.
  • the detection unit 200 is provided, sufficient light collection does not occur at the position of the detection unit 200.
  • the marker of the present invention suppresses the occurrence of aberration in each of the lens units by configuring each of the lens units as described above, and reveals the image of the detection target 200 with better accuracy. , Can be detected.
  • the marker of the present invention detects the image of the detection unit in the range of the optical axis inclined at ⁇ 30 °, for example, with the central axis C of the reference lens unit as 0 °.
  • Second Embodiment Embodiment 2 is an example of the marker set of the present invention having the marker of the present invention and a two-dimensional pattern code.
  • the marker set further includes, for example, a substrate, and the two-dimensional pattern code and the marker of the present invention are disposed on the substrate.
  • the two-dimensional pattern code is an AR marker.
  • the two-dimensional pattern code is not particularly limited, and examples thereof include AR marker and QR marker.
  • examples of the AR marker include ARToolKit, Arteaga, Cybercide, ARToolKit Plus, and the like.
  • the marker set by detecting the marker of the present invention together with the detection of the two-dimensional pattern code, it is possible to determine the inclination direction and the angle of the light beam (vision direction).
  • the marker of the present invention focuses light on the corresponding detection target units. It is possible to suppress the occurrence of aberration in each lens unit due to the inclination of the axis, make the image from the detected unit appear clearly, and improve the detection accuracy of the marker.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)

Abstract

L'invention concerne un marqueur qui rend minimale l'apparition d'une aberration dans chacune de sections de lentille suite à l'inclinaison de l'axe optique et qui permet à une image d'une section à détecter d'apparaître clairement et d'être détectée. Le marqueur (1) est caractérisé par les éléments suivants : ledit marqueur (1) comprend un corps de lentille (10) ayant, sur un côté de surface de celui-ci, une pluralité de sections de lentille agencées de façon continue dans une direction plane et, sur l'autre côté de surface de celui-ci, une pluralité de sections à détecter (200) qui peuvent être détectées à partir dudit un côté de surface et qui correspondent à chacune des sections de lentille ; les pas des sections de lentille et les pas des sections à détecter (200) diffèrent ; la totalité de l'aire d'une surface ayant une inclinaison supérieure à 0° par rapport à une direction d'axe optique central dans chacune des sections de lentille est une section optiquement fonctionnelle ; une section de lentille discrétionnaire sert de section de lentille de référence (111) ; le marqueur (1) comprend un groupe de sections de lentille côté amont (112) et un groupe de sections de lentille côté aval (113) ; chaque section de lentille du groupe de sections de lentille côté amont (112) et du groupe de sections de lentille côté aval (113) a une forme asphérique qui est asymétrique gauche-droite par rapport à l'axe central ; et la forme en coupe transversale de chaque section de lentille amène la lumière à être collectée dans la section à détecter (200) correspondant à celle-ci.
PCT/JP2018/037843 2017-10-12 2018-10-11 Marqueur Ceased WO2019074036A1 (fr)

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JP2017198592A JP2019074332A (ja) 2017-10-12 2017-10-12 マーカ
JP2017-198592 2017-10-12

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020009035A1 (fr) * 2018-07-02 2020-01-09 株式会社エンプラス Marqueur

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011508907A (ja) * 2007-12-28 2011-03-17 ローリング オプティクス エービー 微細構造化製品を製造する方法
JP2016127022A (ja) * 2014-12-25 2016-07-11 日亜化学工業株式会社 光源装置
WO2017099007A1 (fr) * 2015-12-08 2017-06-15 株式会社エンプラス Marqueur

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