WO2014024677A1

WO2014024677A1 - Size-altering optical image forming device and manufacturing method therefor

Info

Publication number: WO2014024677A1
Application number: PCT/JP2013/069911
Authority: WO
Inventors: 誠大坪
Original assignee: 株式会社アスカネット
Priority date: 2012-08-10
Filing date: 2013-07-23
Publication date: 2014-02-13
Also published as: JPWO2014024677A1

Abstract

Provided is a size-altering optical image forming device (10) wherein first and second optical control panels (11, 12), each provided with a plurality of strip-like reflective surfaces (13, 14) which are arranged in parallel and spaced apart, are placed in contact with each other, or in parallel and in close proximity to each other, such that the strip-like reflective surfaces (13, 14) of the first and second optical control panels (11, 12) intersect. In this optical image forming device (10), the strip-like reflective surfaces (13, 14) of the first and second optical control panels (11, 12) are placed so as to be slanted relative to a plane parallel to the thickness direction of the first and second optical control panels (11, 12). As a result, a size-altering optical image forming device (10) can be provided which is capable of forming a real image for an image of an object (including an image displayed on a display unit) with enlarged or reduced size.

Description

Magnification change type optical imaging apparatus and method for manufacturing the same

The present invention relates to a magnification-changing optical imaging apparatus that can reduce and enlarge a subject (including a display image) and a method for manufacturing the same.

Patent Document 1 proposes an optical imaging apparatus 70 capable of imaging a subject image three-dimensionally in a space. As shown in FIG. 7, this optical imaging apparatus 70 has a large number of strip-shaped planar

light reflecting portions

75 and 76 perpendicular to the contact surface 73 of the transparent

flat plates

71 and 72 inside the

flat plates

71 and 72. The first and second

light control panels

77 and 78 formed side by side at the pitch of the first and second

light control panels

77 and 78 are respectively viewed in plan view. Then, they are configured to be orthogonal to each other.

In the optical imaging device 70, the light from the object M is incident on the planar light reflecting portion 75 of the first light control panel 77, and the reflected light reflected by the planar light reflecting portion 75 is reflected on the second light control panel. The light is reflected again by the plane light reflecting portion 76 of 78, and the image M ′ of the object M is formed on the opposite side of the optical imaging device 70.

No. 2009/131128

In the technology described in Patent Document 1, the object M and its image M ′ are formed symmetrically about the contact surface 73, and therefore when a large (or small) image M ′ is required, The object M also needed a large (small) thing.

The present invention has been made in view of such circumstances, and a magnification-changing optical imaging apparatus capable of enlarging or reducing an image of a subject (including an image displayed on a display) to form a real image and its manufacture. It aims to provide a method.

The magnification-changing type optical imaging apparatus according to the first invention that meets the above-described object is characterized in that the first and second light control panels each having a plurality of strip-like reflecting surfaces arranged in parallel with a gap are provided. 1. In the magnification-changing optical imaging device disposed in close contact or parallel with the belt-like reflecting surfaces of the second light control panel intersecting (in plan view),
The strip-like reflecting surfaces of the first and second light control panels are respectively inclined with respect to a plane parallel to the thickness direction of the first and second light control panels.

In the magnification-changing optical imaging apparatus according to the first aspect of the present invention, it is preferable that the angle of inclination of the band-like reflecting surface with respect to a plane parallel to the thickness direction of each of the first and second light control panels is the same. Thereby, a real image enlarged or reduced at the same ratio in the vertical and horizontal directions (XY direction) can be obtained.

In the magnification-changing optical imaging apparatus according to the first invention, each of the first and second light control panels is formed by laminating and laminating transparent strips having mirror surfaces formed on one side or both sides. The mirror surface formed on the transparent strip material can also form the strip-shaped reflection surface.

In the magnification-changing optical imaging apparatus according to the first aspect of the present invention, the belt-like reflecting surfaces of the first and second light control panels are inclined within a range of less than 90 degrees with the subject side as a reference plane, and the subject The band-like reflective surfaces of the first and second light control panels are inclined in a range exceeding 90 degrees with the subject side as a reference plane, and the subject It is also possible to enlarge and display the image.

A method for manufacturing a magnification-changing optical imaging apparatus according to the second invention that meets the above-mentioned object is provided with a first and a second, respectively, provided with a plurality of strip-like reflecting surfaces that are inclined and arranged at the same angle in parallel with a gap. And a magnification-changing type optical imaging device in which the band-like reflecting surfaces of the first and second light control panels are arranged in contact with each other or close to each other in parallel. ,
A first step of laminating a transparent plate whose one or both sides are mirror-finished to form a laminate;
A second step of making the first and second light control panels by cutting the laminate at a predetermined thickness obliquely with respect to the laminate surface;
And a third step in which the first and second light control panels are bonded together via a transparent member or directly so that the belt-like reflection surfaces formed by the mirror surface treatment intersect.

In the first and second light control panels of the above invention, the band-like reflecting surface may be embedded in a transparent body (for example, a transparent plate material) such as glass or plastic at a predetermined interval. In this case, the gap between the adjacent band-shaped reflecting surfaces is filled with a transparent body. However, when the adjacent band-shaped reflecting surfaces are simply erected with a gap, the adjacent band-shaped reflecting surfaces are wedge-shaped grooves. It may be formed on a wall.
In addition, the state in which the belt-like reflective surfaces intersect is preferably a state in which the belt-like reflective surfaces of the first light control panel and the second light control panel are orthogonal (with an error of ± 1 degree) in plan view. These do not necessarily have to be orthogonal.

The magnification-changing optical imaging device according to the first invention and the magnification-changing optical imaging device manufactured by the manufacturing method according to the second invention include a plurality of parallelly inclined inclinations at the same angle with a gap. Since the first and second light control panels each having a band-shaped reflection surface are arranged in contact with each other or close to each other in parallel with the band-shaped reflection surfaces of the first and second light control panels intersecting each other. The image of the subject is enlarged or reduced.
When the subject is enlarged and displayed, the entire apparatus can be reduced in size for the displayed image. Further, when the subject is reduced and displayed, a more precise and clear image can be obtained.

In particular, in the method for manufacturing the magnification-changing type optical imaging apparatus according to the second invention, it is very easy to manufacture a laminate, and the distance between adjacent strip-like reflecting surfaces (that is, mirror surfaces) can be easily controlled.
Furthermore, the angle of the belt-like reflecting surface can be easily controlled by cutting the laminate obliquely. In the above invention, the subject image may be a three-dimensional image in addition to a flat image such as a display.

(A), (B), and (C) are a plan view, a front sectional view, and a side sectional view showing a main part of the magnification-changing optical imaging apparatus according to the first embodiment of the present invention. It is explanatory drawing of the same magnification change type | mold optical imaging device. (A) is a front sectional view showing a main part of a magnification-changing optical imaging apparatus according to a second embodiment of the present invention, and (B) is a sectional side view of the same. (A) is a front sectional view showing a main part of a magnification-changing optical imaging apparatus according to a third embodiment of the present invention, and (B) is a sectional side view. (A) is a front sectional view showing a main part of a magnification-changing optical imaging apparatus according to a fourth embodiment of the present invention, and (B) is a sectional side view of the same. (A) is a front sectional view showing a main part of a magnification-changing optical imaging apparatus according to a fifth embodiment of the present invention, and (B) is a sectional side view of the same. It is explanatory drawing of the optical imaging apparatus which concerns on a prior art example.

Subsequently, a magnification change type optical imaging apparatus and a method for manufacturing the same according to an embodiment of the present invention will be described with reference to the accompanying drawings.
As shown in FIGS. 1 (A), (B), and (C), the magnification-changing optical imaging apparatus 10 according to the first embodiment of the present invention is arranged in contact with each other.

Light control panels

11 and 12 are provided. The first and

second control panels

11 and 12 have a plurality of strip-like reflecting

surfaces

13 and 14 arranged in parallel at predetermined intervals, respectively.

The band-like reflecting

surfaces

13 and 14 are in relation to the surfaces orthogonal to the thickness direction of the first and second

light control panels

11 and 12, for example, the joint surface 16 of the first and second

light control panels

11 and 12. It is inclined and arranged in a certain direction. Here, the inclination angle β of the band-like reflecting

surfaces

13 and 14 with respect to the joint surface 16 is the same, less than 90 degrees and 30 degrees or more (preferably 55 to 89 degrees, more preferably 75 to 88 degrees, also in the following examples) The same) is preferred, but in some cases it may be less than 30 degrees. Since the surfaces parallel to the thickness direction of the first and second

light control panels

11 and 12 are orthogonal to the bonding surface 16, the surfaces are inclined with respect to the surfaces parallel to the thickness direction of the strip-

like reflection surfaces

13 and 14. The angle α is 90 degrees −β.
As shown in FIG. 1A, the strip-like reflecting

surfaces

13 and 14 of the first and second

light control panels

11 and 12 intersect in an orthogonal state in plan view.

In this embodiment, each of the strip-like reflecting

surfaces

13 and 14 has a reflecting surface formed only on one side, but may be both sides.
For example, as shown in FIG. 2,

mirror surfaces

19 and 20 are formed on both surfaces of a transparent plate 18 made of transparent gas or plastic by a metal vapor deposition method. In this way, a large number of the transparent plate members 18 having the

mirror surfaces

19 and 20 formed on both sides are laminated through an adhesive, for example, to form a laminate 22. The laminated body 22 is cut with respect to the laminated surface 23 at an inclination angle of β and a constant thickness (t). As a result, a plurality of transparent strips having

mirror surfaces

19 and 20 formed on both sides are laminated to form the light control panel D.

Here, when the

mirror surfaces

19 and 20 are formed on both surfaces of the transparent plate material 18, when the transparent plate materials 18 with the

mirror surfaces

19 and 20 are laminated, it is not necessary to consider the color of the adhesive, and both of the transparent plate materials 18 A surface can be used, and the smooth surface of the transparent plate member 18 can be used as the belt-like reflecting

surfaces

13 and 14 as they are. In addition, although a transparent plate material can also be laminated | stacked by making only one side of a transparent plate material into a mirror surface, in this case, the surface where the mirror surface of the transparent plate material was joined can be used for a strip | belt-shaped reflective surface.

The light control panel D formed as shown in FIG. 2 is used as the

light control panels

11 and 12, and the

light control panels

11 and 12 face each other so that the band-like reflecting

surfaces

13 and 14 intersect each other. . In this case, it is preferable to join using a transparent adhesive (transparent member), but it may be a gap and may be close to each other or simply brought into contact (directly bonded).
Note that the direction of the inclination of the belt-like reflecting

surfaces

13 and 14 is either inside or both outside with the axis of the subject as the center. When the direction of the inclination of the band-like reflecting

surfaces

13 and 14 is set to be inward with the subject's axis as the center (that is, when the subject side is inclined in the same direction within a range of less than 90 degrees with the reference side as the reference surface) When the image of the subject is reduced and the direction of the inclination of the belt-like reflecting

surfaces

13 and 14 is both outside with the subject's axial center as the center (that is, both in the range exceeding 90 degrees with the subject side as the reference plane) The subject image is magnified).

This will be described with reference to the magnification-changing optical imaging apparatus 24 according to the second embodiment of the present invention shown in FIGS. 3 (A) and 3 (B). Assuming that the band-like reflection surfaces 25 and 26 are perpendicular to the surface of the light control panel used in the conventional light control panel, the light emitted from one point P of the subject is the oppositely arranged belt-like reflection surfaces 25 and 26. Are reflected a plurality of times at P1 to P3 and imaged at the position P ′.

On the other hand, as shown in FIG. 3, when the belt-like reflecting

surfaces

27 and 26 are vertically inclined at an angle α degree around the axis m of the subject as shown in FIG. The light emitted from one point P is reflected by adding an angle 2α degrees at Q1 to Q5 of the belt-like reflecting

surfaces

27 and 28, and forms an image at the position Q ′. Therefore, since Q ′ is closer to the magnification-changing optical imaging device 24 than P ′, the image formed as a whole is smaller than the subject.

FIGS. 4A and 4B show a magnification-changing optical imaging apparatus 30 according to the third embodiment of the present invention. The band-like reflecting

surfaces

31 and 32 are located at the axis m of the subject S. On the other hand, it is formed so as to open outward with respect to the traveling direction of light (image forming direction). As a result, the image S ′ formed by the magnification-changing optical imaging device 30 is formed farther from the magnification-changing optical imaging device 30, thereby enabling the image to be enlarged.

FIGS. 5A and 5B show a magnification-changing optical imaging device 34 according to a fourth embodiment of the present invention. The magnification-changing optical imaging device 34 includes transparent plastic or glass. The

transparent plate members

35 and 36 are used, and

grooves

37 and 38 having a triangular cross section are formed in parallel on one surface with a gap. Then, the first and second

light control panels

43 and 44 are formed by mirror-treating one side (or both sides) of the

grooves

37 and 38 to form strip-like reflection surfaces 41 and 42. The first and second

light control panels

43 and 44 are arranged in close contact with each other or in parallel so that the band-like reflecting

surfaces

41 and 42 intersect in plan view.

The operation in this case is the same as that of the magnification-changing optical imaging apparatus 24 described above, and the band-like reflecting

surfaces

41 and 42 are inclined inward with respect to the subject's axis (perpendicular line passing through the center). The mold optical imaging device 34 reduces the image of the subject to form an image. When the belt-like reflecting

surfaces

41 and 42 are perpendicular to the contact surfaces (joint surfaces) of the

transparent plate members

35 and 36, the optical imaging apparatus described in FIG. 3 of WO2009 / 131128 (Patent Document 1). Is the same.

FIGS. 6A and 6B show a magnification-changing optical imaging device 47 according to the fifth embodiment of the present invention. The magnification-changing optical imaging device 34 according to the fourth embodiment is shown in FIGS. The band-like reflection surfaces 41 and 42 are opened outward with respect to the subject's axis (referred to as band-like reflection surfaces 48 and 49), and the other configurations are the same. In this case, the cross-sectional shape of the

grooves

52 and 53 formed in the

transparent plates

50 and 51 is a shape that can be easily press-formed. One or both sides of the

grooves

52 and 53 are mirror-finished to form strip-like reflecting

surfaces

48 and 49.

Reference numerals

56 and 57 denote first and second light control panels, respectively.
The operation of the magnification-changing optical imaging device 47 is opposite to the operation of the magnification-changing optical imaging device 34, and the subject image is enlarged and displayed.

The present invention is not limited to the above-described embodiments, and design changes can be made without departing from the scope of the present invention.
Moreover, in the said Example, although the to-be-photographed object was a real thing, the image (a plane and a solid are included) formed in a display (display device) may be sufficient.

The magnification-changing optical imaging apparatus according to the present invention is formed by enlarging or reducing an image of a subject, so that a large subject can be reduced and viewed, and a smaller subject can also be enlarged and viewed. In particular, when applied to image processing of a mobile phone, an enlarged or reduced image of the subject can be displayed in a pop-up manner, so that the convenience of the mobile phone is further improved.
In addition, when distortion arises in the image formed, it can also correct and display.

10: magnification change type optical imaging apparatus, 11: first light control panel, 12: second light control panel, 13, 14: strip-shaped reflecting surface, 16: bonding surface, 18: transparent plate, 19, 20: Mirror surface, 22: Laminated body, 23: Laminated surface, 24: Magnification-changing optical imaging device, 25, 26: Band-shaped reflecting surface, 27, 28: Band-shaped reflecting surface, 30: Magnification-changing optical imaging device, 31, 32: Band-shaped reflection surface, 34: Magnification change type optical imaging device, 35, 36: Transparent plate material, 37, 38: Groove, 41, 42: Band-shaped reflection surface, 43: First light control panel, 44: Second Light control panel, 47: magnification-changing optical imaging device, 48, 49: strip-shaped reflecting surface, 50, 51: transparent plate material, 52, 53: groove, 56: first light control panel, 57: second Light control panel

Claims

With the first and second light control panels each having a plurality of strip-shaped reflection surfaces arranged in parallel with a gap, the band-shaped reflection surfaces of the first and second light control panels intersect with each other. In the magnification-changing optical imaging device arranged close to or in contact with the parallel,
Each of the band-like reflecting surfaces of the first and second light control panels is arranged to be inclined with respect to a surface parallel to the thickness direction of the first and second light control panels. A magnification-changing optical imaging device.
2. The magnification-changing optical imaging apparatus according to claim 1, wherein the band-like reflecting surfaces are inclined at the same angle with respect to a plane parallel to the thickness direction of each of the first and second light control panels. Magnification change type optical imaging device.
3. The magnification-changing optical imaging apparatus according to claim 1, wherein each of the first and second light control panels is formed by laminating and laminating transparent strips having mirror surfaces formed on one side or both sides. A magnification-changing type optical imaging apparatus, wherein the mirror surface formed on the transparent band plate material forms the band-shaped reflection surface.
3. The magnification-changing optical imaging apparatus according to claim 1, wherein the belt-like reflecting surfaces of the first and second light control panels are inclined within a range of less than 90 degrees with the subject side as a reference plane, A magnification-changing optical imaging apparatus characterized in that an image of a subject is reduced and displayed.
3. The magnification-changing optical imaging apparatus according to claim 1, wherein the band-like reflecting surfaces of the first and second light control panels are inclined in a range exceeding 90 degrees with a subject side as a reference plane, A magnification-changing optical imaging apparatus characterized in that an image of a subject is enlarged and displayed.
The first and second light control panels each having a plurality of strip-like reflecting surfaces that are inclined and arranged at the same angle in parallel with a gap, and the band-like reflecting surfaces of the first and second light control panels are provided. A method of manufacturing a magnification-changing optical imaging device arranged close to abutment or parallel in an intersecting state,
A first step of laminating a transparent plate whose one or both sides are mirror-finished to form a laminate;
A second step of making the first and second light control panels by cutting the laminate at a predetermined thickness obliquely with respect to the laminate surface;
And a third step in which the first and second light control panels are bonded together via a transparent member or directly so that the belt-like reflecting surfaces formed by the mirror surface treatment intersect each other. A method for manufacturing a modified optical imaging apparatus.