WO1997001116A1 - Appareil de formation d'images optiques - Google Patents

Appareil de formation d'images optiques Download PDF

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Publication number
WO1997001116A1
WO1997001116A1 PCT/JP1996/001739 JP9601739W WO9701116A1 WO 1997001116 A1 WO1997001116 A1 WO 1997001116A1 JP 9601739 W JP9601739 W JP 9601739W WO 9701116 A1 WO9701116 A1 WO 9701116A1
Authority
WO
WIPO (PCT)
Prior art keywords
optical
image
optical imaging
imaging device
panel
Prior art date
Application number
PCT/JP1996/001739
Other languages
English (en)
Japanese (ja)
Inventor
Makoto Otsubo
Original Assignee
Nittetsu Elex Co., Ltd.
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 Nittetsu Elex Co., Ltd. filed Critical Nittetsu Elex Co., Ltd.
Priority to AU61384/96A priority Critical patent/AU6138496A/en
Publication of WO1997001116A1 publication Critical patent/WO1997001116A1/fr
Priority to US09/180,197 priority patent/US6100771A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/006—Systems in which light light is reflected on a plurality of parallel surfaces, e.g. louvre mirrors, total internal reflection [TIR] lenses

Definitions

  • the present invention relates to an optical imaging device that forms an optical image of an object by converging scattered light from the object.
  • the device that forms an optical image by controlling the scattered light emitted from the surface of the object by reflection, refraction, shielding, etc . (1) Reflects the scattered light from the object using a mirror, etc., and mirrors the image of the object And (2) a device that uses a convex lens optical system, and (3) a device that converges light from a number of small images on a panel through a number of pinholes to obtain an optical image of an object.
  • the scattered light 56 from the object 55 can be imaged as shown in FIG. 7 (b), and the real image 57 can be obtained.
  • the position and the magnification of the optical image are determined by the focal length of the lens used and the distance between the object and the lens.
  • An optical image 60 as a real image can be formed at a position in front of the rule panel 61. That is, the image display panel 62 on which a number of small images are recorded is installed behind the pinhole panel 61 on which a number of pinholes 58 are arranged, and light is emitted from behind the image display panel 62. Thereby, the optical image 60 of the target object is reproduced through the large number of pinholes 58.
  • the optical image that appears is a virtual image 52, so that a simulation operation in which the observer actually touches the optical image is performed. It is impossible to do such things.
  • the present invention has been made in view of such circumstances, and provides an optical imaging device that can easily form a real image of the same size of an object at a position where an observer can touch the hand.
  • the purpose is to do. Disclosure of the invention
  • An optical imaging device that meets the above object is an optical imaging device that forms an optical image of an object by converging scattered light from the object, and is opaque or translucent.
  • the reflective element having a reflective surface orthogonal to the panel surface is an optical element having a function of changing the direction of reflected scattered light incident from the front side of the panel to the back side of the panel surface at an angle equal to the incident angle and reflecting the scattered light.
  • Such an optical element uses not only an optical reflection phenomenon but also a self-control element that controls the traveling direction of light by using a gradient of a change in refractive index as used in optical fiber communication technology. Including a micro lens.
  • the optical imaging device configured as described above, since a large number of reflecting elements having a reflecting surface orthogonal to the panel surface are arranged on the light-impermeable or light-transmitting panel, Using the center plane of the panel thickness as the mirror-symmetric reference plane, a real image of the object can be formed at a position mirror-symmetric with the object.
  • the reflective element may be formed of a transparent column or cylinder, and a part or all of an inner surface or a part or all of an outer surface may form the reflective surface.
  • FIG. 1 is a perspective view of an optical imaging device according to a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view of the optical imaging device viewed from a side
  • FIG. 3 is related to a second embodiment of the present invention.
  • FIG. 4 is a cross-sectional view of the optical imaging device as viewed from the side
  • FIG. 4 is a perspective view of the optical imaging device according to the third embodiment of the present invention
  • FIG. 5 is an explanatory diagram of an optical device combining a plurality of optical imaging devices
  • FIG. 6 is an explanatory diagram of an optical system to which an optical imaging device is applied
  • FIG. 7 is an explanatory diagram of an optical device according to a conventional example.
  • the optical imaging device 10 As shown in FIGS. 1 and 2, the optical imaging device 10 according to the first embodiment of the present invention has a large number of reflective elements 12 each having a reflective surface 13 on an opaque panel 11. It is arranged and configured.
  • the opaque panel 11 is made of an opaque thin plate (length and width: 20 O mm, thickness' .0.5 mm) such as plastic, glass, wood, paper pulp or metal. , Become.
  • the reflecting element 12 is made of a transparent plastic or glass cylinder (diameter: 0.3 mm, height: 0.5 mm), and the entire inner surface of the cylinder reflects the scattered light that enters.
  • the outer surface of the cylinder is mirror-coated with a metal such as aluminum so as to form a reflecting surface 13 which is formed.
  • the reflection surfaces 13 of the large number of reflection elements 12 are arranged in the panel 11 at substantially equal intervals so as to be orthogonal to the surface of the power panel 11 and at a maximum integration degree. I have.
  • the optical imaging device 10 may be, for example, an optical fiber or a transparent rod made of plastic, whose outer surface is mirror-coated with a metal such as aluminum, or a plurality of optical rods without coating the optical fiber.
  • the optical fiber is bundled and, if necessary, is filled with colored plastic or the like around the optical fiber to form an aggregate of the optical fiber, and the aggregate is perpendicular to the length direction of the optical fiber. It can also be formed by cutting thinly to a thickness of 0.5 mm.
  • the operation of the optical imaging device 10 will be described based on FIG.
  • the scattered light 16 emitted from P on the object 14 is reflected on each of the reflection surfaces 13 of the reflection elements 12 arranged in the panel 11, converges on P ′, and converges on P ′.
  • An optical image 15 is formed by a set of these points that form an image corresponding to each of the points. At this time, points P and P 'are the center plane 1 of panel 1 1
  • the optical image 15 is a real image in which the asperities of the symmetric object 14 are inverted, that is, a pseudoscopic (pseudoscopic) image.
  • the optical imaging device 10 does not involve a peculiar refraction phenomenon, so that an optical image with little distortion can be obtained, and no aberration due to a difference in the wavelength of light is generated.
  • the optical image 15 is formed by converging the scattered light, so that it is possible to perform a simulation by actually placing an object at the image forming position.
  • a self-occurring microlens is an optical element such as a cylinder that has a light-gathering function and whose refractive index of light decreases in a substantially parabolic manner from the center toward the periphery.
  • a function of transmitting light incident from one end to the other end of the cylinder and inverting the incident direction in the opposite direction is obtained. Therefore, by arranging a large number of these elements in the panel, the same effect as that of the reflective element 12 can be obtained.
  • the optical imaging device 20 is configured by arranging a large number of reflective elements 22 having a reflective surface 23 in a translucent panel 21. Have been.
  • the translucent panel 21 is made of a translucent thin plate material (length and width: 20 O mm, thickness: 0.5 mm) such as plastic or glass.
  • the reflecting element 22 is formed of a transparent plastic or glass cylinder (diameter: 0.3 mm, height: 0.5 mm), and the inner surface and / or the outer surface of the cylinder is scattered light.
  • the outer surface of the cylinder is mirror-coated with a metal such as aluminum so as to form the reflection surface 23.
  • the panels are arranged at substantially equal intervals so that the reflection surfaces 23 of the large number of reflection elements 22 are orthogonal to the surface of the panel 21 and at the maximum integration degree of the reflection elements 22. 2 are located in one.
  • the operation of the optical imaging device 20 will be described with reference to FIG. 3.
  • a large number of scattered lights 26 emitted from one point P on the object 24 are arranged in the panel 21.
  • An optical image is formed by a set of these points that are reflected by the inner and outer reflecting surfaces 23 of the reflecting element 22 and converge on P ′ and form an image corresponding to each point on the object 24. 25 is formed.
  • the scattered light is reflected on both the outer and inner surfaces of the reflecting surface 23 of the reflecting element 22, of the scattered light converging on the point P ′ among the scattered lights emitted from the point P on the object.
  • the ratio is higher and a brighter optical image 25 is obtained.
  • the optical imaging device 27 has a rectangular column-shaped glass opening 28 having a length and width of 5 mm, and a side surface portion formed of a metal such as aluminum.
  • a reflective surface 29 and glue these square pillars together It can also be manufactured by joining with an agent or the like, or by cutting the assembly that is mechanically stacked without gaps into thin pieces of 5 mm.
  • the device can be manufactured easily, and unnecessary space such as an opaque portion in the panel is reduced, so that the ratio of the amount of convergent scattered light can be further improved.
  • two optical imaging devices 30 and 31 are arranged at an angle of about 90 degrees with respect to each other, and a male A is located in front of the optical imaging device 30 with an optical imaging device. If a woman B is standing in front of 31, both pseudoscopic stereoscopic images A ′ and B ′ form an image in the space between the two optical imaging devices 30 and 31, and furthermore, The scattered light from the pseudoscopic stereoscopic image converges through the optical imaging devices 31 and 30 on the opposite sides, respectively, so that the stereoscopic image of the female B and the female B A three-dimensional image A "of the male A forms an image beside him. In this case, they can communicate without directly touching each other.
  • the pseudoscopic stereoscopic images A ′ and B ′ are further inverted so that the irregularities are normal.
  • a life-size stereoscopic image of male A and female B with little distortion can be obtained, and scattered light that has not been reflected and does not contribute to convergence that has passed through the first optical imaging device 30 is transmitted to the second optical imaging device. Since it is removed by passing through the imaging device 31, the sharpness of the finally formed stereoscopic images A ⁇ and B ⁇ increases.
  • FIG. 6 is an explanatory diagram of a second application example in which the optical imaging devices according to the first to third embodiments are used in combination with a plurality of convex lenses.
  • the optical system 40 is configured by arranging first and second optical imaging devices 41 and 42 and first and second convex lenses 43 and 44 as shown in FIG.
  • the scattered light 45 from the object is transmitted through the first convex lens 43, the first optical imaging device 41, the second convex lens 44, and the second optical imaging device 42 in this order.
  • a three-dimensional image of the object is formed behind the second optical imaging device 42.
  • scattered light 45 from the object (:, D is transmitted through the first convex lens 43, so that it is turned upside down and at a ratio corresponding to the distance from the first convex lens 43.
  • the real images C ′ and D ′ of the reduced objects C and D are formed at a distance from each other, and the real images C ′ and D ′ are inevitable because the refraction by the first convex lens 43 is used.
  • An optical image having optical distortion due to refraction is obtained.
  • the scattered light from the real image C ⁇ D ' converges via the first optical imaging device 41, and is in a mirror-symmetrical positional relationship with the real image C ⁇ ', and is a real image to which no optical distortion is added.
  • ⁇ , D is obtained. That is, the real images C ′, D ′ and the real images C ⁇ , D ⁇ ⁇ ⁇ are equal to each other, and the up-down symmetric relationship is maintained, but the relationship in which the unevenness is reversed is obtained. Yes, the degree of optical distortion is the same for both.
  • the real image (: ⁇ , D "is used as a light source, and the real image is formed by the second convex lens 44.
  • the real image is formed by the second convex lens 44.
  • the imaging positions of the three-dimensional images C f and D f are determined by the positional relationship between the first and second convex lenses 43 and 44 and the first and second optical imaging devices 41 and 42. Can be arbitrarily adjusted, and three-dimensional images C f and D f with less optical distortion can be obtained as compared with an optical system including only a convex lens.
  • first and second optical imaging devices 41 and 42 do not contribute to the formation of a three-dimensional image, that is, they are transmitted through the reflection element without being reflected by the reflection element.
  • scattered light scattered light reflected at least twice on the reflection surface of the reflection element is removed, and clearer stereoscopic images C f and D f can be obtained.
  • a reflecting element was used in which the side surface of a transparent cylinder was a reflecting surface, but the side surface was reflected as a polygonal column having a polygonal shape such as a triangle, a pentagon, or a hexagon.
  • the same effect can be obtained as the surface, and a hollow polygonal column may be used.
  • a polygonal reflective element the density of the reflective elements arranged in the panel can be increased, and the scattered light utilization efficiency can be further increased.
  • the optical imaging device since the scattered light from the object is reflected by a reflection surface orthogonal to the panel surface to form an optical image of the object, Using the center plane of the thickness of the flannel as a mirror-symmetric reference plane, a real image of the object with little distortion can be formed at the position where the object is mirror-symmetric. Therefore, it is possible to apply this optical imaging device to another optical device such as a convex lens as a part of an optical system, or to use a combination of a plurality of the optical imaging devices. This makes it easier to apply simulations to virtual reality fields.
  • the reflective element is made of a transparent column or cylinder, part or all of the inner surface or part or all of the outer surface forms the reflective surface. It is possible to increase the degree of collection of scattered light from an object, and as a result, a clearer image can be obtained and the device can be manufactured easily.

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

Abstract

L'invention concerne un appareil de formation d'images optiques. Cet appareil forme l'image optique d'un objet en assurant la convergence de la lumière diffusée à partir de l'objet. Un panneau opaque ou transparent est pourvu d'un grand nombre de réflecteurs dont les surfaces de réflexion sont perpendiculaires à ses surfaces, de telle sorte qu'un objet et son image réelle peuvent être symétriques par rapport au plan médian entre les surfaces du panneau.
PCT/JP1996/001739 1995-06-23 1996-06-21 Appareil de formation d'images optiques WO1997001116A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU61384/96A AU6138496A (en) 1995-06-23 1996-06-21 Optical image formation apparatus
US09/180,197 US6100771A (en) 1996-06-21 1998-04-16 Multi-signal generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP18075795A JPH095503A (ja) 1995-06-23 1995-06-23 光学結像装置
JP7/180757 1995-06-23

Publications (1)

Publication Number Publication Date
WO1997001116A1 true WO1997001116A1 (fr) 1997-01-09

Family

ID=16088792

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1996/001739 WO1997001116A1 (fr) 1995-06-23 1996-06-21 Appareil de formation d'images optiques

Country Status (3)

Country Link
JP (1) JPH095503A (fr)
AU (1) AU6138496A (fr)
WO (1) WO1997001116A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024677A1 (fr) * 2012-08-10 2014-02-13 株式会社アスカネット Dispositif de formation d'image optique à altération de taille et son procédé de fabrication

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Publication number Priority date Publication date Assignee Title
WO2007116639A1 (fr) 2006-03-23 2007-10-18 National Institute Of Information And Communications Technology Element de traitement d'image et affichage
KR101077679B1 (ko) * 2006-10-02 2011-10-27 도쿠리츠 교세이 호진 죠호 츠신 켄큐 키코 2점 결상 광학 디바이스
WO2009131128A1 (fr) * 2008-04-22 2009-10-29 Fujishima Tomohiko Dispositif d’imagerie optique et procede d’imagerie optique mettant en œuvre ce dispositif
WO2009136578A1 (fr) * 2008-05-09 2009-11-12 パイオニア株式会社 Appareil d'affichage d'image spatiale
JP5057390B2 (ja) * 2008-05-16 2012-10-24 独立行政法人情報通信研究機構 ２面コーナーリフレクタアレイ
JP2009276699A (ja) * 2008-05-16 2009-11-26 National Institute Of Information & Communication Technology ２面コーナーリフレクタアレイ
JP2011081300A (ja) * 2009-10-09 2011-04-21 Pioneer Electronic Corp 反射型面対称結像素子の製造方法
WO2012165217A1 (fr) * 2011-05-27 2012-12-06 シャープ株式会社 Élément optique et système optique
WO2013061619A1 (fr) 2011-10-24 2013-05-02 株式会社アスカネット Dispositif de formation d'image optique
US8702252B2 (en) 2012-01-30 2014-04-22 Asukanet Company, Ltd. Optical imaging apparatus and optical imaging method using the same
JP5921243B2 (ja) * 2012-02-14 2016-05-24 シャープ株式会社 反射型結像素子および光学システム
JP5646110B2 (ja) 2012-02-28 2014-12-24 株式会社アスカネット 立体像形成システム及びその方法
JP2012128456A (ja) * 2012-03-22 2012-07-05 Pioneer Electronic Corp 反射型面対称結像素子の製造方法
JP5318242B2 (ja) * 2012-03-22 2013-10-16 パイオニア株式会社 反射型面対称結像素子の製造方法
JP5893503B2 (ja) * 2012-05-14 2016-03-23 シャープ株式会社 表示装置及び表示方法
JP5860143B2 (ja) * 2012-05-25 2016-02-16 パイオニア株式会社 反射型面対称結像素子、空間映像表示装置および反射型面対称結像素子の製造方法
JP2015166845A (ja) * 2014-02-13 2015-09-24 日本電気硝子株式会社 光学結像素子及びその製造方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821702A (ja) * 1981-07-31 1983-02-08 Ricoh Co Ltd 微小幅両面反射帯を用いた結像素子
JPS6125104A (ja) * 1984-07-13 1986-02-04 Hitachi Ltd 複合レンズ
JPS63191182A (ja) * 1987-02-04 1988-08-08 キヤノン株式会社 画像表示部材

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5821702A (ja) * 1981-07-31 1983-02-08 Ricoh Co Ltd 微小幅両面反射帯を用いた結像素子
JPS6125104A (ja) * 1984-07-13 1986-02-04 Hitachi Ltd 複合レンズ
JPS63191182A (ja) * 1987-02-04 1988-08-08 キヤノン株式会社 画像表示部材

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014024677A1 (fr) * 2012-08-10 2014-02-13 株式会社アスカネット Dispositif de formation d'image optique à altération de taille et son procédé de fabrication
JPWO2014024677A1 (ja) * 2012-08-10 2016-07-25 株式会社アスカネット 倍率変更型光学結像装置及びその製造方法

Also Published As

Publication number Publication date
AU6138496A (en) 1997-01-22
JPH095503A (ja) 1997-01-10

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