WO2016132984A1 - Élément optique, élément de formation d'image à antenne réfléchissante l'utilisant, et procédés de fabrication correspondants - Google Patents

Élément optique, élément de formation d'image à antenne réfléchissante l'utilisant, et procédés de fabrication correspondants Download PDF

Info

Publication number
WO2016132984A1
WO2016132984A1 PCT/JP2016/053928 JP2016053928W WO2016132984A1 WO 2016132984 A1 WO2016132984 A1 WO 2016132984A1 JP 2016053928 W JP2016053928 W JP 2016053928W WO 2016132984 A1 WO2016132984 A1 WO 2016132984A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
laminated
reflective
optical element
parallel
Prior art date
Application number
PCT/JP2016/053928
Other languages
English (en)
Japanese (ja)
Inventor
将也 木下
康司 大西
Original Assignee
コニカミノルタ株式会社
有限会社オプトセラミックス
泉陽光学株式会社
三国製鏡株式会社
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 コニカミノルタ株式会社, 有限会社オプトセラミックス, 泉陽光学株式会社, 三国製鏡株式会社 filed Critical コニカミノルタ株式会社
Priority to JP2017500627A priority Critical patent/JPWO2016132984A1/ja
Publication of WO2016132984A1 publication Critical patent/WO2016132984A1/fr

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/08—Mirrors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00—Advertising or display means not otherwise provided for
    • G09F19/12—Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18—Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds

Definitions

  • the present invention relates to a reflective aerial imaging element that forms a real image of an object to be projected in the air, an optical element used for the reflective aerial imaging element, and a method of manufacturing the same.
  • FIG. 15 shows a plan view of a conventional reflective aerial imaging element.
  • the reflection-type aerial imaging element 10 is formed by stacking two flat optical elements 1 having a square planar shape in the vertical direction, and inside each optical element 1 is parallel to one side and the thickness direction of the optical element 1.
  • the reflecting surfaces 2 are arranged in parallel at a predetermined period.
  • the reflection type aerial imaging element 10 is formed by joining the two optical elements 1 so that the reflection surfaces 2 are orthogonal to each other.
  • the reflective aerial imaging element 10 having the above configuration, when a projection object is arranged below the lower optical element 1 and light is irradiated toward the projection object, a part of the light reflected by the projection object is obtained.
  • the light enters the lower optical element 1 from the lower incident surface 18, is reflected by the reflecting surface 2, and then enters the upper optical element 1.
  • the light reflected by the reflection surface 2 of the upper optical element 1 is emitted from the emission surface 19 on the upper surface of the reflective aerial imaging element 10, and the position of the object to be projected and the surface object is relative to the reflective aerial imaging element 10.
  • a real image of the projection object is formed in the air. Thereby, the image of the projection object is displayed in a state of floating in the air. That is, an aerial image of the projection object is displayed.
  • Patent Document 2 describes that a plurality of flat reflection type aerial imaging elements are joined at the end face to form a large flat reflection type aerial imaging element. That is, it describes that tiling is performed using a plurality of reflective aerial imaging elements. As a result, a large image can be displayed in a state of floating in the air.
  • JP2013-101230A (6th page, 7th page, FIG. 6, FIG. 7)
  • the viewing direction EL is set in order to optimize the visibility of the aerial image.
  • a useless invalid area 40 that is not used for forming a real image of the projection object is formed outside the rectangular area 30. Therefore, if an effective area for imaging a real image of the projection object is to be enlarged, the entire reflective aerial imaging element 10 including the invalid area 40 needs to be further enlarged.
  • An object of the present invention is to provide an optical element that can be easily enlarged by reducing a useless area that is not used for imaging, and a reflective aerial imaging element using the optical element. It is another object of the present invention to provide an optical element that can reduce a useless area that is not used for imaging and can be easily enlarged, and a method for manufacturing a reflective aerial imaging element.
  • the present invention is an optical element which is formed in a flat plate shape having a rectangular shape in plan view, and has a reflecting surface parallel to the thickness direction arranged in parallel at a predetermined cycle
  • the optical element is A first small piece formed in a polygonal planar shape; A plurality of second small pieces formed in a planar shape of a right-angled isosceles triangle and arranged at four corners of the first small pieces; With The first small piece portion has the reflective surface parallel to one side thereof, The second small piece portion has the reflective surface inclined with respect to the two orthogonal sides, The side of the first small piece portion perpendicular to the reflective surface and the reflection of the first small piece portion so that the reflective surface of the first small piece portion and the reflective surface of the second small piece portion are parallel to each other. The oblique side of the second small piece portion is joined to a side parallel to the surface.
  • the present invention also relates to a method for manufacturing a flat optical element in which reflective surfaces parallel to the thickness direction are arranged in parallel at a predetermined period.
  • the present invention also provides a reflective aerial in which two planar optical elements having reflective surfaces parallel to the thickness direction arranged in parallel at a predetermined period are arranged in parallel in the thickness direction, and the reflective surfaces of the two optical elements are orthogonal to each other.
  • the reflection surface is inclined with respect to the first small piece portion that is formed in a polygonal planar shape and the reflection surface is parallel to one side, and the two sides that are orthogonal to each other and are formed in a planar shape of a right-angled isosceles triangle. And a plurality of second small pieces arranged at the four corners. And the hypotenuse of the second small piece on the side perpendicular to the reflective surface of the first small piece and the side parallel to the reflective surface so that the reflective surface of the first small piece and the reflective surface of the second small piece are parallel to each other Are joined. As a result, it is possible to increase the size of the optical element and the reflective aerial imaging element by reducing a useless area that is not used for imaging a real image of the projection object.
  • the first laminated block forming step, the second laminated block forming step, the joining block forming step, and the joining block cutting step are provided. Therefore, it is possible to improve the manufacturing efficiency of the optical element and the reflective aerial imaging element that have a small useless area that is not used for imaging the real image of the projection object.
  • the perspective view which expanded the principal part of FIG. The top view which shows the reflection type aerial imaging element of 1st Embodiment of this invention
  • FIG. 1 It is a front view which shows the joining block formed at the manufacturing process of the reflection type aerial imaging element of 1st Embodiment of this invention, and is a figure for demonstrating formation of the optical element of the other modification of 1st Embodiment.
  • the top view which shows the original block material formed at the manufacturing process of the reflection type aerial imaging element of 3rd Embodiment of this invention The top view which shows the original block material formed at the manufacturing process of the reflection type aerial imaging element of 4th Embodiment of this invention Plan view showing a conventional reflective aerial imaging element
  • FIG. 1 is a perspective view of an aerial image display apparatus provided with the reflective aerial imaging element of the first embodiment.
  • FIG. 2 shows an enlarged perspective view of the main part of FIG.
  • the X direction, the Y direction, and the Z direction indicate the depth direction, the width direction, and the thickness direction of the optical element 1, respectively.
  • an arrow P indicates an optical path.
  • the aerial image display device 100 includes a reflective aerial imaging element 10 and a light source 20.
  • the reflective aerial imaging element 10 is formed by arranging a plurality (two in this embodiment) of optical elements 1 each having a square planar shape in the thickness direction (Z direction).
  • the optical element 1 is made of, for example, glass.
  • the optical element 1 may be formed of a transparent resin such as an acrylic resin.
  • reflective surfaces 2 parallel to the thickness direction are arranged in parallel at a predetermined cycle (for example, a cycle of about 0.4 mm). That is, the plurality of reflecting surfaces 2 are arranged in parallel at a predetermined period in a direction perpendicular to the thickness direction. Further, the reflecting surfaces 2 of the pair of adjacent optical elements 1 are orthogonal to each other.
  • a transparent reinforcing plate 5 that covers the optical element 1 is provided on one end face (the lower end face in FIG. 1) of the optical element 1 in the juxtaposed direction (Z direction).
  • the reinforcing plate 5 is formed of the same material as the optical element 1.
  • the strength of the reflective aerial imaging element 10 can be improved by the reinforcing plate 5.
  • FIG. The material of the reinforcing plate 5 may be different from the material of the optical element 1.
  • the light source 20 is arranged on one optical element 1 side (below the reinforcing plate 5 in FIG. 1).
  • the light source 20 is made of an LED, for example, and emits white illumination light L.
  • the light source 20 may be formed by CCFL (Cold Cathode Fluorescent Lamp).
  • FIG. 3 is a plan view of the reflective aerial imaging element 10
  • FIG. 4 is a perspective view of the optical element 1.
  • the planar shapes of the optical element 1 and the reflective aerial imaging element 10 are formed in a square having a side length of about 283 mm.
  • the optical element 1 has a first small piece portion 3 and a plurality of second small piece portions 4.
  • the first small piece 3 is formed in a square planar shape, and the reflecting surface 2 is parallel to one side 31.
  • the second small piece portion 4 is formed in a planar shape of a right-angled isosceles triangle, and the reflective surface 2 is inclined with respect to the orthogonal two sides 42 and 43 and is arranged at the four corners of the optical element 1.
  • the reflective surface 2 of the first small piece portion 3 and the reflective surface 2 of the second small piece portion 4 are parallel to each other on the side 31 and the reflective surface 2 perpendicular to the reflective surface 2 of the first small piece portion 3.
  • the oblique side 41 of the second small piece portion 4 is joined to the parallel side 31.
  • the hypotenuse 41 of the second small piece 4 is formed to have the same length as the one side 31 of the first small piece 3.
  • the reflecting surface 2 is inclined by 45 ° with respect to the two orthogonal sides 42 and 43 of the second small piece portion 4.
  • a pair of optical elements 1 are joined together so that the reflective surface 2 of one optical element 1 and the reflective surface 2 of the other optical element 1 are orthogonal to each other, thereby forming a reflective aerial imaging element 10.
  • a projection object OB (see FIGS. 1 and 2) of a two-dimensional image is disposed on one optical element 1 side (below the reinforcing plate 5 in FIG. 1), and a light source 20 is turned on. Illumination light L emitted from the light source 20 is reflected by the projection object OB, and as shown by an arrow P (see FIG. 2), a part of the reflected light is incident on the lower optical element 1 from the lower incident surface 18. Then, after being reflected by the reflecting surface 2 of the lower optical element 1, it enters the upper optical element 1.
  • a real image (aerial image FI) of the projection object is formed in the air at the position. Thereby, the aerial image FI of the projection object OB is displayed in a state of floating in the air.
  • the reflecting surface 2 is inclined by 45 ° with respect to the two orthogonal sides 42 and 43 of the second small piece portion 4. For this reason, all the reflecting surfaces 2 of the optical element 1 are inclined by 45 ° with respect to one side of the optical element 1. Therefore, when the projection object is formed in a rectangular shape with one side facing the user, the entire area of the reflective aerial imaging element 10 can be used for imaging a real image of the projection object OB. Therefore, in the reflective aerial imaging element 10, a useless area (unused area) that is not used for imaging a real image of the projection object OB can be reduced, and an area of an effective area (used area) for imaging. Can be obtained easily.
  • the reflective aerial imaging element 10 as described above, for example, if the projection object OB is information relating to a product or the like, it is possible to advertise the product or the like using the aerial image FI. In addition, a touch panel of a device used at a medical site or a construction site may be displayed as an aerial image FI. Thereby, contamination of an apparatus etc. can be prevented.
  • the reflective aerial imaging element 10 may be mounted on a game machine or the like.
  • the projection object OB is not limited to a two-dimensional image, and may be a three-dimensional object.
  • the projection object OB may be an image displayed on a display device such as a liquid crystal panel.
  • the light source incorporated in the display device can be used without the light source 20.
  • FIG. 5 is a diagram showing a manufacturing process of the reflective aerial imaging element 10.
  • the manufacturing process of the reflective aerial imaging element 10 includes a first laminated block forming process, a second laminated block forming process, a joining block forming process, a joining block cutting process, a polishing process, an optical element joining process, and a reinforcing plate joining process. Yes.
  • the first laminated block forming step includes a reflecting surface forming step, a laminating step, and an original block material cutting step.
  • the reflective surface 2 is formed on both surfaces of the transparent plate 11 made of glass having a rectangular planar shape by sputtering or vapor deposition of aluminum or silver.
  • the reflecting surface 2 is formed by arranging aluminum having a thickness of 100 nm on the transparent plate 11.
  • the reflective surface 2 may be formed only on one side of the transparent plate 11.
  • the manufacturing method of the transparent plate 11 is not particularly limited, for example, a fusion method can be used.
  • the fusion method is a method in which melted glass is put into a heart-shaped bottle whose upper surface is opened and the cross-sectional shape is squeezed at the lower end, and the glass overflowing from the upper surface of the bottle flows downward and is integrated under the bottle. Thereby, since a glass surface is formed only by surface tension without contact other than air, a smooth surface can be obtained.
  • the length in the short direction, the length in the longitudinal direction, and the thickness of the transparent plate 11 are 200 mm, 400 mm, and 0.4 mm, respectively.
  • the transparent plate 11 may be formed of a transparent resin such as an acrylic resin instead of the glass.
  • a plurality of transparent plates 11 are bonded using an epoxy-based adhesive and stacked in a direction perpendicular to the reflecting surface 2.
  • a spacer having a predetermined particle diameter may be sandwiched between the transparent plates 11.
  • silica particles having an average particle diameter of about 10 ⁇ m are used as spacers, and 480 transparent plates 11 are laminated.
  • an adhesive layer having a thickness of about 16.5 ⁇ m is formed between adjacent transparent plates 11. With the spacer, the thickness of the adhesive layer can be made uniform while maintaining the parallelism between the reflecting surfaces 2.
  • the adhesive is not limited to an epoxy adhesive, and may be an acrylic adhesive, for example.
  • the rectangular parallelepiped original block material 13 is formed.
  • the length of the original block material 13 in the direction perpendicular to the reflecting surface 2 (the length in the stacking direction LM) is formed to be about 200 mm.
  • the ratio of the length D1 of the original block material 13 in the stacking direction LM and the length D2 of the long side of the transparent plate 11 is 1: 2.
  • the original block material 13 is cut along the cutting line C1 (see FIG. 7) using, for example, a wire saw (not shown). Instead of a wire saw, the original block material 13 may be cut using a slicer or the like.
  • the cutting line C ⁇ b> 1 is formed so as to pass through the center of the long side of the transparent plate 11. Thereby, the original block material 13 is cut along the stacking direction LM at the center of the long side of the transparent plate 11, and two cubic first stacked blocks 14 are formed as shown in FIG.
  • the peripheral surface 14a of the first laminated block 14 formed of the cut surface of the original block material 13 is square, and the peripheral surface 14b perpendicular to the reflective surface 2 and the peripheral surface 14a is also square.
  • the entrance surface 18 and the exit surface 19 of the optical element 1 are formed in parallel to the peripheral surface 14a or the peripheral surface 14b.
  • the peripheral surface 14b may be rectangular, and when formed in parallel with the peripheral surface 14b, the peripheral surface 14a may be rectangular.
  • the ratio of the lengths D1 and D2 (see FIG. 7) of the original block material 13 is formed to be 1: 2, a plurality of first laminated blocks 14 having a square peripheral surface 14b are simultaneously formed by the original block material cutting step. it can.
  • one of the first laminated blocks 14 is cut along cutting lines C2 along both diagonal lines of the peripheral surface 14b perpendicular to the reflecting surface 2.
  • a wire saw, a slicer, or the like is used for cutting the first laminated block 14.
  • a plurality of second laminated blocks 15a and 15b having a bottom surface 15c having a right isosceles triangle and a triangular prism shape are formed.
  • the cutting line C2 is composed of a diagonal line of the peripheral surface 14b of the first laminated block 14, but may be a diagonal line of the peripheral surface 14a.
  • the inclined surface 151c and the reflecting surface 2 are perpendicular to each other, and in the pair of second laminated blocks 15b, the inclined surface 151c and the reflecting surface 2 are parallel to each other.
  • the second laminated blocks 15a and 15b may be collectively referred to as “second laminated block 15”.
  • the slope 151 c of the second laminated block 15 b is joined to two opposing faces parallel to the reflecting surface 2 of the first laminated block 14. Further, the inclined surface 151c of the second laminated block 15a is joined to two opposing surfaces (peripheral surfaces 14a) perpendicular to the reflecting surface 2 of the first laminated block 14. Thereby, the reflecting surface 2 of the 1st laminated block 14 and the reflective surface 2 of the 2nd laminated block 15 are mutually parallel, and the bottom face is a square prism-shaped joining block 16 formed.
  • first laminated block 14 and the second laminated block 15a are joined so that the reflective surface 2 of the first laminated block 14 and the reflective surface 2 of the second laminated block 15a are continuous.
  • it joins so that one edge part of each lamination direction LM of each of the 1st lamination block 14 and the 2nd lamination block 15a may become the same edge part of lamination direction LM in original block material 13 (refer to Drawing 7). .
  • the same transparent plate 11 is joined to the first laminated block 14 and the second laminated block 15a. For this reason, even if the thickness variation of the transparent plate 11 occurs, the reflective surface 2 of the first laminated block 14 and the reflective surface 2 of the second laminated block 15a can be made continuous with high accuracy.
  • An adhesive such as an epoxy resin or an acrylic resin is used for joining the first laminated block 14 and the second laminated block 15.
  • an adhesive may not be used.
  • the arrangement period of the reflective surface 2 of the first laminated block 14 and the reflective surface 2 of the second laminated block 15 are used. Is substantially the same.
  • the lamination direction of the reflective surface 2 of the 2nd lamination block 15a and the reflective surface 2 of the 1st lamination block 14 Deviation in LM can be reduced. Therefore, a step or the like is hardly generated at the joining portion of the reflecting surface 2, and distortion and streaks of the aerial image FI can be prevented when the optical element 1 cut out from the joining block 16 is used as described later.
  • the joining block 16 is cut along a plurality of cutting lines C3 (see FIG. 11) using, for example, a wire saw or a slicer.
  • the cutting line C3 is formed in a direction perpendicular to the reflecting surface 2.
  • the joining block 16 is cut
  • both end faces in the thickness direction of the optical element 1 are roughly polished (lapping) using a lapping apparatus.
  • polishing polishing is performed on both end surfaces in the thickness direction of the optical element 1 by using a polishing apparatus to finish a mirror finish.
  • the two optical elements 1 are joined using an adhesive so that the reflecting surfaces 2 are orthogonal to each other. Thereby, the two optical elements 1 are arranged in parallel in the thickness direction.
  • the adhesive the same adhesive as that used in the first laminated block forming step is used.
  • the reinforcing plate joining step the reinforcing plate 5 is bonded to one end surface of the optical elements 1 in the juxtaposed direction with an adhesive.
  • the adhesive used in the first laminated block forming step is used.
  • the reflective aerial imaging element 10 is manufactured.
  • FIG. 12 shows a view for explaining the formation of the optical element 1 of another modification of the present embodiment.
  • the unevenness of the joining block 16 caused by the tolerance at the time of joining the first laminated block 14 and the second laminated block 15 may be removed by cutting or grinding.
  • the planar shape of the first small piece portion 3 is an octagon.
  • the joining block 16 is cut or ground by the two-dot chain line 200 on the left side, the right side, and the lower side, the planar shape of the first small piece portion 3 is a heptagon.
  • the planar shape of the first small piece portion 3 is a hexagon. Further, for example, when the joining block 16 is cut or ground by the upper two-dot chain line 200, the planar shape of the first small piece portion 3 is a pentagon.
  • what part of the outer peripheral part of the joining block 16 is removed may be determined according to the joining state of the first joining block 14 and the second joining block 15 in the outer peripheral part.
  • the planar shape of the first small piece portion 3 of the optical element 1 having a rectangular shape in plan view becomes a pentagon.
  • the other joining block 16 is cut along a perpendicular line to the one-dot chain line 300 so that the optical element 1 obtained from the other joining block 16 has the same size as the optical element 1 obtained from the one joining block 16. Cut with (not shown).
  • the planar shape of the reflective aerial imaging element 10 is formed in a rectangular shape. Thereby, the optical element 1 and the reflective aerial imaging element 10 having a desired aspect ratio can be obtained.
  • the aspect ratio of the optical element 1 and the reflective aerial imaging element 10 according to the shape of the desired aerial image FI, it does not contribute to the imaging of the optical element 1 and the reflective aerial imaging element 10.
  • the area can be reduced and the usage efficiency can be improved.
  • the rectangular plane shape and the reflecting surface 2 are formed in a planar shape of a right isosceles triangle with the first small piece portion 3 parallel to the side 31 and the two orthogonal to each other.
  • the reflective surface 2 is inclined with respect to the sides 42 and 43 and has a plurality of second small piece portions 4 arranged at four corners.
  • the reflective surface 2 of the first small piece portion 3 and the reflective surface 2 of the second small piece portion 4 are provided.
  • the oblique side 41 of the second small piece portion are joined to the side 31 perpendicular to the reflective surface 2 of the first small piece portion 3 and the side 31 parallel to the reflective surface 2 so as to be parallel to each other.
  • region which is not used for the imaging of the real image of the to-be-projected object OB can be made small, and the optical element 1 and the reflection type aerial imaging element 10 can be enlarged.
  • two first laminated blocks 14 having the same area and a square planar shape can be created, the first small piece portion 3 can be formed from one, and the second small piece portion 4 can be formed from the other. Therefore, the optical element 1 and the reflective aerial imaging element 10 having a square planar shape can be easily manufactured.
  • the angle of inclination of the reflecting surface 2 is 45 ° with respect to the two orthogonal sides 42 and 43 of the second small piece portion 4, a useless area that is not used for forming a real image of the projection object OB can be easily reduced.
  • the optical element 1 and the reflective aerial imaging element 10 can be easily enlarged.
  • two optical elements 1 described above are arranged in the thickness direction, and the reflecting surfaces 2 of the two optical elements 1 are orthogonal to each other. Thereby, the useless area
  • the transparent reinforcing plate 5 that covers the optical element 1 is provided on one end surface of the optical element 1 in the juxtaposed direction, the strength of the reflective aerial imaging element 10 can be improved.
  • the manufacturing process of the optical element 1 includes a first laminated block forming process, a second laminated block forming process, a joining block forming process, and a joining block cutting process.
  • the thickness of the adhesive layer can be made uniform while maintaining the parallelness between the reflecting surfaces 2.
  • a plurality of first laminated blocks 14 are formed by cutting one original block material 13 in which the transparent plates 11 are laminated in a direction perpendicular to the reflecting surface 2.
  • the arrangement cycle of the reflective surface 2 of the first laminated block 14 and the arrangement cycle of the reflective surface 2 of the second laminated block 15 are substantially the same.
  • the lamination direction of the reflective surface 2 of the 2nd lamination block 15a and the reflective surface 2 of the 1st lamination block 14 Deviation in LM can be reduced. Therefore, a step or the like is hardly generated at the joining portion of the reflecting surface 2, and the aerial image FI can be prevented from being distorted or streaked in the reflective aerial imaging element 10 using the optical element 1 cut out from the joining block 16. .
  • the first laminated block 14 and the second laminated block 15a formed from the same original block material 13 are joined on a plane perpendicular to the reflecting surface 2, and one end portion of both of the lamination directions LM is formed.
  • the original block material 13 it arrange
  • the same transparent plate 11 is joined to the first laminated block 14 and the second laminated block 15a. For this reason, even if the thickness variation of the transparent plate 11 occurs, the reflective surface 2 of the first laminated block 14 and the reflective surface 2 of the second laminated block 15a can be made continuous with high accuracy.
  • one of the adjacent first laminated blocks 14 of the same original block material 13 is joined to the second laminated block 15 formed from the other.
  • difference in the lamination direction LM of the reflective surface 2 of the 2nd laminated block 15 and the reflective surface 2 of the 1st laminated block 14 can be reduced further.
  • the ratio of the length D1 of the original block material 13 in the stacking direction LM to the length D2 of one side (long side) of the transparent plate 11 is 1: 2, and the center of one side of the transparent plate 11 is in the stacking direction LM.
  • the original block material 13 is cut along. Thereby, two 1st laminated blocks 14 can be formed only by cutting the original block material 13 once. Therefore, the manufacturing efficiency of the optical element 1 and the reflective aerial imaging element 10 can be further improved.
  • the reinforcing plates 5 may be bonded to both end faces of the optical element 1 in the juxtaposed direction. Thereby, the strength of the reflective aerial imaging element 10 can be further improved. Further, the reinforcing plate 5 may be omitted from the reflective aerial imaging element 10.
  • both surfaces of the transparent plate 11 are made of the reflective surface 2, but only one surface of the transparent plate 11 may be made of the reflective surface 2.
  • the illumination light L emitted from the light source 20 is incident on the adhesive layer in the aerial image display device 100, it is desirable that the refractive index of the adhesive or the spacer is substantially the same as the refractive index of the transparent plate 11. .
  • the transparent plates 11 (see FIG. 8) having a square shape are bonded to each other with an adhesive, and 480 transparent plates 11 are stacked in a direction perpendicular to the reflecting surface 2.
  • the cube-shaped 1st laminated block 14 (refer FIG. 8) is formed.
  • a plurality of first laminated blocks 14 are formed.
  • the steps after the second laminated block forming step are the same as those in the first embodiment.
  • the same effect as that of the first embodiment can be obtained. Moreover, since the formation of the original block material 13 is omitted, the manufacturing efficiency of the optical element 1 and the reflective aerial imaging element 10 can be further improved.
  • FIG. 13 shows a plan view of the original block material formed in the manufacturing process of the reflective aerial imaging element 10 of the third embodiment.
  • the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS.
  • the configuration of the original block material 13 is different from that of the first embodiment.
  • Other parts are the same as those in the first embodiment.
  • the original block member 13 is formed by laminating the rectangular transparent plate 11 having a ratio of the length in the short direction to the length in the longitudinal direction of 1: 4. Further, the length D1 of the original block material 13 in the stacking direction LM is formed to be the same as the length of the transparent plate 11 in the short direction.
  • the original block material cutting step of FIG. 5 the original block material 13 is cut along a plurality of cutting lines C1.
  • the cutting line C1 is formed in parallel to the short direction of the original block material 13, and is formed so as to divide the original block material 13 into four equal parts in the longitudinal direction.
  • four first laminated blocks 14 having substantially the same cubic shape are formed from the same original block material 13.
  • one of the adjacent first laminated blocks 14 of the same original block material 13 and the second laminated block 15 formed from the other are joined in a joining block forming step. Thereby, the joining block 16 is formed.
  • the same effect as that of the first embodiment can be obtained.
  • more four first laminated blocks 14 can be obtained from the same original block material 13 than in the case of the first embodiment.
  • one of the adjacent first laminated blocks 14 of the same original block material 13 is joined to the second laminated block 15 formed from the other.
  • the joining block 16 is formed, the lamination direction of the reflective surface 2 of the second laminated block 15a and the reflective surface 2 of the first laminated block 14 at the joint location between the second laminated block 15a and the first laminated block 14 is determined.
  • the shift in LM can be further reduced.
  • one of the first laminated blocks 14 that are not adjacent to each other in the same original block material 13 and the second laminated block 15 formed from the other may be joined in a joining block forming step.
  • FIG. 14 is a plan view of the original block material 13 formed in the manufacturing process of the reflective aerial imaging element 10 of the fourth embodiment.
  • the same reference numerals are given to the same parts as those in the first embodiment shown in FIGS.
  • the configuration of the original block material 13 is different from that of the first embodiment.
  • Other parts are the same as those in the first embodiment.
  • the original block member 13 is formed by laminating the rectangular transparent plate 11 having a ratio of the length in the short direction to the length in the longitudinal direction of, for example, 1: 2.2. Further, the length D1 of the original block material 13 in the stacking direction LM is formed to be the same as the length of the transparent plate 11 in the short direction.
  • the original block material cutting step of FIG. 5 first, the original block material 13 is cut along a cutting line C ⁇ b> 1 at the center in the longitudinal direction of the original block material 13. Thereafter, the original block material 13 is cut along the cutting lines C1 at both ends of the original block material 13 in the longitudinal direction.
  • the cutting line C1 is formed in parallel to the short direction of the original block material 13, and the distance between the adjacent cutting lines C1 is formed to be the same as the length of the original block material 13 in the short direction.
  • two first laminated blocks 14 having substantially the same cubic shape are formed from the same original block material 13.
  • extra regions 17 in which the length in the direction perpendicular to the cutting line C1 is less than the length in the short direction of the original block material 13 are formed at both ends in the longitudinal direction of the original block material 13. .
  • the joining block forming step one of the adjacent first laminated blocks 14 of the same original block material 13 is joined to the second laminated block 15 formed from the other. Thereby, the joining block 16 is formed.
  • an extra region 17 whose length in the direction perpendicular to the cutting line C ⁇ b> 1 is less than the length in the short direction of the original block material 13 is formed at both ends in the longitudinal direction of the original block material 13.
  • the present invention can be used in a reflective aerial imaging element that forms a real image of a projection object in the air, an optical element used in the reflective aerial imaging element, and a method for manufacturing the same.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

L'objectif de la présente invention est de fournir un élément optique qui permet un surdimensionnement avec une région inutile, non utilisée pour former une image réelle d'un objet à projeter, ayant une petite taille. Un élément optique 1 est formé selon une forme de plaque plate rectangulaire sur une vue en plan, et des plans de réflexion 2 parallèles à la direction de l'épaisseur de celui-ci y sont disposés parallèlement les uns aux autres à des intervalles prédéterminés. L'élément optique 1 est pourvu d'une première petite pièce 3 formée selon une forme de surface plate polygonale, et d'une pluralité de secondes petites pièces 4 formées selon une forme de surface plate de type triangle isocèle à angle droit et disposées aux quatre coins de la première petite pièce. Les plans de réflexion 2 sont parallèles à un des côtés de la première petite pièce 3, les plans de réflexion 2 sont obliques par rapport à deux des côtés orthogonaux de la seconde petite pièce 4, et les côtés obliques respectifs 41 des secondes petites pièces 4 sont assemblés à un côté 31 perpendiculaire aux plans de réflexion 4 de la première petite pièce 3 et à un côté 31 parallèle aux plans de réflexion 2 de la première petite pièce 3 de telle sorte que les plans de réflexion 2 de la première petite pièce 3 et les plans de réflexion 2 des secondes petites pièces 4 deviennent parallèles les uns aux autres.
PCT/JP2016/053928 2015-02-18 2016-02-10 Élément optique, élément de formation d'image à antenne réfléchissante l'utilisant, et procédés de fabrication correspondants WO2016132984A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2017500627A JPWO2016132984A1 (ja) 2015-02-18 2016-02-10 光学素子、それを用いた反射型空中結像素子及びこれらの製造方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2015-029321 2015-02-18
JP2015029321 2015-02-18

Publications (1)

Publication Number Publication Date
WO2016132984A1 true WO2016132984A1 (fr) 2016-08-25

Family

ID=56689222

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2016/053928 WO2016132984A1 (fr) 2015-02-18 2016-02-10 Élément optique, élément de formation d'image à antenne réfléchissante l'utilisant, et procédés de fabrication correspondants

Country Status (2)

Country Link
JP (1) JPWO2016132984A1 (fr)
WO (1) WO2016132984A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018105445A1 (fr) * 2016-12-06 2018-06-14 コニカミノルタ株式会社 Élément de formation d'image aérienne réflexif
CN110476106A (zh) * 2017-04-17 2019-11-19 亚斯卡奈特股份有限公司 立体像成像装置的制造方法
CN110573935A (zh) * 2017-06-29 2019-12-13 亚斯卡奈特股份有限公司 立体像成像装置及立体像成像装置的制造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61129599A (ja) * 1984-11-29 1986-06-17 株式会社東芝 放射線管理設備の排気フイルタ装置
JP2013167670A (ja) * 2012-02-14 2013-08-29 Sharp Corp 反射型結像素子、反射型結像素子の製造方法、および光学システム
WO2014167904A1 (fr) * 2013-04-12 2014-10-16 シャープ株式会社 Elément formant image de type réfléchissant et procédé de fabrication d'élément formant image de type réfléchissant

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61129599A (ja) * 1984-11-29 1986-06-17 株式会社東芝 放射線管理設備の排気フイルタ装置
JP2013167670A (ja) * 2012-02-14 2013-08-29 Sharp Corp 反射型結像素子、反射型結像素子の製造方法、および光学システム
WO2014167904A1 (fr) * 2013-04-12 2014-10-16 シャープ株式会社 Elément formant image de type réfléchissant et procédé de fabrication d'élément formant image de type réfléchissant

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018105445A1 (fr) * 2016-12-06 2018-06-14 コニカミノルタ株式会社 Élément de formation d'image aérienne réflexif
JPWO2018105445A1 (ja) * 2016-12-06 2019-04-04 コニカミノルタ株式会社 反射型空中結像素子
CN110476106A (zh) * 2017-04-17 2019-11-19 亚斯卡奈特股份有限公司 立体像成像装置的制造方法
CN110476106B (zh) * 2017-04-17 2021-09-10 亚斯卡奈特股份有限公司 立体像成像装置
CN110573935A (zh) * 2017-06-29 2019-12-13 亚斯卡奈特股份有限公司 立体像成像装置及立体像成像装置的制造方法
CN110573935B (zh) * 2017-06-29 2022-02-11 亚斯卡奈特股份有限公司 立体像成像装置及立体像成像装置的制造方法
US11714296B2 (en) 2017-06-29 2023-08-01 Asukanet Company, Ltd. Stereoscopic image forming device and method for manufacturing stereoscopic image forming device

Also Published As

Publication number Publication date
JPWO2016132984A1 (ja) 2017-11-24

Similar Documents

Publication Publication Date Title
US20170293149A1 (en) Optical element, image display device and method for manufacturing same
TWI486650B (zh) 影像補償裝置及其製造方法
JP5085767B2 (ja) 光学結像装置の製造方法
TWI507787B (zh) 顯示裝置、拼接式顯示器及背光模組
US11598958B2 (en) Method of fabricating a symmetric light guide optical element
US10434746B2 (en) Laminated optical member, lighting device, display device, and television device with spacers defined in linear shapes along a plate surface with axes tilted relative to an arrangement direction of pixels
JP6165206B2 (ja) 光制御パネルの製造方法、光制御パネル、光学結像装置、及び、空中映像形成システム
TW201513070A (zh) 顯示裝置及拼接式顯示器
JP5904437B2 (ja) 空間映像表示装置
JP6654446B2 (ja) 空中映像表示デバイスおよび空中映像表示装置
WO2016132984A1 (fr) Élément optique, élément de formation d'image à antenne réfléchissante l'utilisant, et procédés de fabrication correspondants
TWI530735B (zh) 影像補償裝置及其製造方法
JP2016180785A (ja) 反射型空中結像素子及びその製造方法
JP2017173527A (ja) 空中映像表示装置
WO2014167904A1 (fr) Elément formant image de type réfléchissant et procédé de fabrication d'élément formant image de type réfléchissant
US20120307359A1 (en) Polarization module and image display apparatus
JP5904436B2 (ja) 大型の反射型面対称結像素子の製造方法
WO2021182246A1 (fr) Procédé de production d'un panneau de commande de lumière utilisé dans un dispositif de formation d'image optique
TW201518784A (zh) 顯示裝置、其光學元件以及光學元件之製作方法
JP5768447B2 (ja) 立体液晶表示装置
WO2012046296A1 (fr) Dispositif d'affichage d'images spatiales
JP2010085586A (ja) 光拡散シート、液晶映像源ユニット及び液晶表示装置
JP6700106B2 (ja) 光学素子の製造方法及び反射型空中結像素子の製造方法
TWM505616U (zh) ３ｄ顯示層及３ｄ顯示結構
JP2013167670A (ja) 反射型結像素子、反射型結像素子の製造方法、および光学システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16752370

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017500627

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16752370

Country of ref document: EP

Kind code of ref document: A1