JPH095503A - Optical imaging device - Google Patents

Abstract

PURPOSE: To make it possible to easily form the unmagnified image of an object in a position where an observer is able to touch an opaque or translucent panel by arranging many reflection elements having reflection surfaces orthogonal with a panel surface on the panel. CONSTITUTION: This optical imaging device is constituted by arranging the many reflection elements 12 having the reflection surfaces 13 on the opaque panel 11. The reflection elements 12 consist of columns made of transparent plastic or glass and are formed by coating the outer flanks of these columns with metal, such as aluminum, to a mirror finished surface form in such a manner that the whole of the inner flanks of the columns constitute the reflection surface to reflect incident scattering light. The reflection surfaces of the many reflection elements 12 are arranged within the panel 11 in such a manner that the reflection surfaces intersect orthogonally with the plane of the panel 11 at nearly equal intervals and that the scale of integration is nearly maximized. A surplus scattered light may be not reflected by forming the reflection surface only in a specific range of the inner flanks of the columns in the case the position of the objects is fixed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical image forming apparatus which converges scattered light from an object to form an optical image of the object.

[0002]

2. Description of the Related Art Reflecting scattered light emitted from the surface of an object,
As a device for forming an optical image by controlling by refraction, blocking, etc., a device that obtains a mirror image of the target by reflecting scattered light from the target using a mirror or the like, a device that uses an optical system of a convex lens, 2. Description of the Related Art There are known devices that converge light from a large number of small images on a panel through a large number of pinholes to obtain an optical image of an object. Hereinafter, these principles will be described with reference to FIG.
As shown in (a), the virtual image 52 of the object 51 can be seen at a mirror symmetric position with the plane of the mirror 50 as the plane of symmetry.
That is, the scattered light 53 from the target object 51 is reflected by the mirror surface at a reflection angle equal to the incident angle thereof, so that the target object 51 appears to exist at a position symmetrical with respect to the target object 51. In addition, in the optical system using the convex lens 54, as shown in FIG.
As shown in (b), the scattered light 56 from the object 55 can be imaged to obtain a real image 57 thereof, and the imaging position and the magnification of the optical image are the focal length of the lens used and the object. And the distance between the lenses. Then, in the method of converging scattered light 59 from a large number of small images recorded in advance via a large number of pinholes 58 to obtain an optical image 60, as shown in FIG. The optical image 60, which is a real image, can be formed at a position in front of the pinhole panel 61 that can be touched with. That is, the image display panel 62 on which a large number of small images are recorded is
Pinhole panel 6 in which a large number of pinholes 58 are arranged
The optical image 60 of the target object is reproduced through the large number of pinholes 58 by irradiating light from behind the image display panel 62.

[0003]

However, in the apparatus for obtaining a mirror image using the mirror 50, the appearing optical image is the virtual image 52, so that the observer actually touches the optical image. It is impossible to perform simulation operations. Further, in the optical system using the convex lens, the distortion and the magnification of the real image 57 change depending on the distance between the lens and the object, so that the distortion and size of the obtained optical image are not fixed, and the object 55 and Real image 57 obtained
There was a problem that the left-right positional relationship was reversed.
Further, in the optical system using the large number of pinholes 58, it is necessary to record a large number of small images in advance, which requires a great deal of labor to form an optical image, and
In particular, when processing an optical image of a moving object, a huge amount of information is required, which makes data processing difficult.

The present invention has been made in view of the above circumstances, and an optical image forming apparatus capable of easily forming a real image of the same size of an object at a position where an observer can touch it. The purpose is to provide.

[0005]

According to the present invention, there is provided a semiconductor device comprising:
The optical imaging device described is an optical imaging device that converges scattered light from an object to form an optical image of the object,
A large number of reflective elements having a reflective surface orthogonal to the panel surface are arranged on a non-translucent or translucent panel. The optical imaging device according to claim 2 is the optical imaging device according to claim 1, wherein the reflective element is a transparent cylinder or a cylinder, and a part or all of the inner surface or a part of the outer surface or All are formed by forming the reflecting surface. The reflection element having a reflection surface orthogonal to the panel surface means an optical element having a function of changing the direction of the 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. In addition to the optical reflection phenomenon, such an optical element uses a Selfoc micro that controls the traveling direction of light by utilizing the gradient of the change in the refractive index as used in optical fiber communication technology. A lens etc. are included.

[0006]

In the optical image forming apparatus according to the present invention, a large number of reflecting elements having a reflecting surface orthogonal to the panel surface are arranged on the non-light-transmitting or light-transmitting panel. The center plane of the thickness of the
A real image of the object can be formed at the positions of the object and the mirror surface object. Particularly, in the optical image forming apparatus according to claim 2, the reflecting element is made of a transparent cylinder or a cylinder, and a part or all of the inner surface or a part or all of the outer surface forms the reflecting surface. Therefore, the degree of condensing of scattered light for forming a stereoscopic optical image can be enhanced, a stereoscopic optical image of an object that is bright and has little distortion can be obtained, and the device can be easily manufactured.

[0007]

Embodiments of the present invention will now be described with reference to the accompanying drawings to provide an understanding of the present invention. 1 is a perspective view of an optical image forming apparatus according to a first embodiment of the present invention, FIG. 2 is a sectional view of the same optical image forming apparatus as seen from the side, and FIG. 3 is a second embodiment of the present invention. FIG. 4 is a cross-sectional view of the optical image forming apparatus as seen from the side, FIG. 4 is a perspective view of the optical image forming apparatus according to the third embodiment of the present invention, and FIG. 5 is an explanatory diagram of an optical apparatus combining a plurality of optical image forming apparatuses. FIG. 6 is an explanatory diagram of an optical system to which the optical image forming device is applied.

As shown in FIGS. 1 and 2, the optical image forming apparatus 10 according to the first embodiment of the present invention has a large number of reflecting elements 12 each having a reflecting surface 13 arranged on an opaque panel 11. Is configured. The non-translucent panel 11 is a non-translucent thin plate material (length: width: 200 mm, thickness: 0.5 m) such as plastic, glass, wood material, paper pulp material or metal.
m). The reflective element 12 is a cylinder made of transparent plastic or glass (diameter: 0.3 mm, height:
0.5 mm), and the outer surface of the cylinder is mirror-coated with metal such as aluminum so that the entire inner surface of the cylinder serves as a reflecting surface 13 that reflects incident scattered light. Then, the reflection surfaces 13 of the large number of reflection elements 12 are arranged in the panel 11 so as to be orthogonal to the surface of the panel 11 at substantially equal intervals and to have a maximum degree of integration. When the position of the target object is fixed, it is possible to prevent the excessive scattered light from being reflected by setting only a specific range of the inner surface of the cylinder as the reflecting surface. Here, the optical image forming apparatus 10 may be configured such that the outer surface of a transparent rod made of, for example, an optical fiber or a plastic is mirror-coated with a metal such as aluminum, or a large number of optical fibers are bundled without coating, and as necessary. Alternatively, a colored plastic or the like may be filled around the optical fiber to form an optical fiber assembly, and the assembly may be thinly cut at a thickness of 0.5 mm at right angles to the length direction of the optical fiber. it can.

The operation of the optical image forming apparatus 10 will be described below with reference to FIG. The scattered light 16 emitted from one point P on the object 14 is reflected by each reflecting surface 13 of the reflecting elements 12 arranged in the panel 11 and converges to P ′, and is scattered on each point on the object 14. An optical image 15 is formed by the set of these correspondingly imaged points. At this time, the points P and P'have a mirror-symmetrical relationship with the center plane 11a of the panel 11 as a plane of symmetry. That is, the line segment P-P 'and the center plane 1 of the panel 11
If the intersection with 1a is O, PO = P'O and the line segment P
-P 'is orthogonal to the panel 11. Therefore, when the optical image 15 is viewed from the optical image 15 side with respect to the panel 11, the optical image 15 is a real image in which the irregularities of the symmetrical object 14 are reversed, that is, a pseudoscopic image.
Further, unlike the optical system such as a lens, in the optical imaging apparatus 10, a peculiar refraction phenomenon does not intervene, so that an optical image with less distortion can be obtained and aberration due to a difference in light wavelength does not occur. Further, unlike the virtual image formed by the mirror, the optical image 15 is formed by converging scattered light, so that it is possible to actually place an object at the image forming position for simulation.

The reflection element 1 utilizing the above-mentioned reflection phenomenon
It is also possible to use a SELFOC microlens instead of 2, and to make an optical imaging device utilizing the refraction phenomenon of light. The SELFOC microlens is an optical element having a condensing function, such as a cylinder, in which the refractive index of light decreases in a parabolic shape from the center toward the peripheral portion. By setting the dimension of the cylinder to a specific value, it is possible to obtain the function of transmitting the light incident from one end side to the other end side of the cylinder and reversing it in the direction opposite to the incident direction. Therefore, by arranging a large number of these in the panel, the reflective element 1
The same effect as that of 2 can be obtained.

Next, an optical image forming apparatus 20 according to the second embodiment of the present invention will be described. As shown in FIG. 3, an optical imaging device 20 according to the second embodiment of the present invention is configured by arranging a large number of reflective elements 22 having a reflective surface 23 inside a translucent panel 21. The translucent panel 21
Is a light-transmitting thin plate material such as plastic or glass (vertical and horizontal:
200 mm, thickness: 0.5 mm). The reflection element 22 is made of a transparent plastic or glass cylinder (diameter: 0.3 mm, height: 0.5 mm), and the inner surface and / or outer surface of the cylinder serves as a reflection surface 23 for scattered light. As described above, the outer surface of the cylinder is mirror-coated with a metal such as aluminum. The reflective surfaces 23 of the large number of reflective elements 22 are arranged in the panel 21 at substantially equal intervals so that the reflective surfaces 22 of the reflective elements 22 are orthogonal to the surface of the panel 21, and the integration degree of the reflective elements 22 is substantially maximum. Has been done.

The operation of the optical image forming apparatus 20 will be described below with reference to FIG.
The scattered light 26 emitted from is reflected by each of the inner and outer reflection surfaces 23 of the reflective element 22 arranged in the panel 21 and converges on P ′, corresponding to each point on the object 24. An optical image 25 is formed by the set of these imaged points. In this case, since the scattered light is reflected by both the outside and the inside of the reflecting surface 23 of the reflecting element 21, the ratio of the scattered light converged at the point P'in the scattered light emitted from the point P on the object is high. And a brighter optical image 25 is obtained.

Further, as shown in FIG. 4, the optical image forming apparatus 27 according to the third embodiment of the present invention is formed by vapor-depositing a metal such as aluminum on the side surface of a square rod glass rod 28 having a length and width of 5 mm. It is also possible to form the reflecting surface 29 and join these quadrangular prisms with an adhesive or the like, or to fabricate an assembly that can be mechanically stacked without a gap into thin pieces of 5 mm. Therefore, the device can be easily manufactured, and the wasted space such as the opaque portion is reduced in the panel, so that the light amount ratio of the converged scattered light can be further improved.

Next, a first application example in which the optical image forming apparatus according to the first to third embodiments is used in combination will be described below. As shown in FIG. 5, two optical imaging devices 30,
31 are arranged at an angle of about 90 degrees to each other,
In front of the optical imaging device 30, the male A is
When a woman B stands in front of 1, the pseudoscopic stereoscopic images A ′ and B ′ of both are two optical imaging devices 3
By forming an image in the space sandwiched between 0 and 31 and further converging scattered light from both pseudoscopic stereoscopic images via the optical image forming devices 31 and 30 on the opposite sides,
A stereoscopic image B ″ of the female B is formed beside the male A, and a stereoscopic image A ″ of the male A is formed beside the female B. In this case, they can communicate without directly touching each other. In addition, in order to form a stereoscopic image through the first and second optical imaging devices 30 and 31, the pseudoscopic stereoscopic images A ′ and B ′ are further inverted, and the male and female are normal and have less distortion. A life-size stereoscopic image of A and a woman B is obtained, and scattered light that has not been reflected and transmitted through the first optical imaging device 30 and does not contribute to the convergence is followed by the second optical imaging device 31.
Since the three-dimensional images A ″ and B ″ are finally formed, the sharpness is increased. In addition, it is possible to measure the shape, size, etc. of a high-temperature object that cannot be measured directly without contact.

FIG. 6 is an explanatory diagram of a second application example in which the optical image forming apparatus according to the first to third embodiments is used in combination with a plurality of convex lenses. The optical system 40 includes first and second optical image forming devices 41 and 42, and first and second convex lenses 4.
3, 44 are arranged as shown in FIG. 6, and the scattered light 45 from the object is reflected by the first convex lens 43, the first optical imaging device 41, the second convex lens 44, and the second convex lens 44. The three-dimensional image of the object is formed behind the second optical image forming device 42 by transmitting light through the optical image forming device 42 in this order. Here, the case where two objects C and D having the same length are arranged in front of the first convex lens 43 of the optical system 40 with a distance therebetween will be described in more detail. In the following description, the rear means the traveling direction of the scattered light 45, and the front means the opposite direction.

First, the scattered light 45 from the objects C and D is transmitted up through the first convex lens 43 to be inverted upside down and reduced at a ratio according to the distance from the first convex lens 43. Real images C ′ and D ′ of the objects C and D are imaged at a distance. Since the real images C'and D'use the refraction phenomenon of the first convex lens 43, they are inevitably optical images having optical distortion due to refraction. Next, the scattered light from the real images C ′ and D ′ is converged through the first optical imaging device 41, has a mirror-symmetrical positional relationship with the real images C ′ and D ′, and adds optical distortion. The unrealized real images C ″ and D ″ are obtained. That is, although the real images C ′ and D ′ and the real images C ″ and D ″ are of the same size and the upper and lower symmetric relationships are maintained,
The concavities and convexities are reversed, and the degree of optical distortion is the same for both. Then, using the real images C ″ and D ″ as light sources,
By projecting the real images C _n and D _n by the convex lens 44 and further passing through the second optical imaging device 42, the stereoscopic images C _f and D _f are obtained behind them. In this optical system, the image forming positions of the stereoscopic images C _f and D _f are arbitrarily adjusted by the positional relationship between the first and second convex lenses 43 and 44 and the first and second optical image forming devices 41 and 42. In addition to that, it is possible to obtain the stereoscopic images C _f and D _f with less optical distortion as compared with the optical system including only the convex lens. Also,
By arranging the first and second optical imaging devices 41 and 42 in series, scattered light or a reflection element that does not contribute to the formation of a stereoscopic image, that is, is transmitted through the reflection element without being reflected by the reflection element. The scattered light reflected twice or more by the reflecting surface of is removed, and clearer stereoscopic images C _f and D _f can be obtained.

Although the embodiments of the present invention have been described above, the present invention is not limited to these embodiments, and changes in conditions and the like without departing from the gist are all within the scope of the present invention. For example, in the present embodiment, a reflective element in which the side surface of a transparent cylinder is a reflective surface was used, but a polygonal columnar body having a polygonal cross section such as a triangle, a pentagon or a hexagon is used, and the side surface is reflected. The same effect can be obtained as the surface, and a hollow polygonal column may be used. When a polygonal prism-shaped reflective element is used, the density of the reflective elements arranged in the panel can be increased to further improve the utilization efficiency of scattered light.

[0018]

In the optical image forming apparatus according to the first and second aspects of the present invention, since the scattered light from the object is reflected by the reflecting surface orthogonal to the panel surface to form an optical image of the object, By using the center plane of the thickness as a reference plane of the mirror surface target, it is possible to form a real image of the target object with less distortion at the position where the target becomes the mirror surface target. Therefore, it is possible to combine this optical image forming device with another optical device such as a convex lens as a part of an optical system, or to use a plurality of the optical image forming devices in combination. It becomes easy to apply to the field of virtual reality where simulations are performed. Particularly, in the optical image forming apparatus according to claim 2, the reflecting element is formed of a transparent cylinder or a cylinder,
Since a part or all of the inner side surface or a part or all of the outer side surface forms the reflecting surface, it is possible to enhance the concentration of scattered light from the object, and as a result, a clearer image. And the device can be easily manufactured.

[Brief description of drawings]

FIG. 1 is a perspective view of an optical image forming apparatus according to a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the same optical imaging apparatus as seen from a side surface.

FIG. 3 is a side sectional view of an optical image forming apparatus according to a second embodiment of the present invention.

FIG. 4 is a perspective view of an optical imaging device according to a third embodiment of the present invention.

FIG. 5 is an explanatory diagram of an optical device in which a plurality of optical imaging devices are combined.

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.

[Explanation of symbols]

 10 optical imaging device 11 panel 11a center plane 12 reflective element 13 reflective surface 14 object 15 optical image 16 scattered light 20 optical imaging device 21 panel 22 reflective element 23 reflective surface 24 object 25 optical image 26 scattered light 27 optical coupling Image device 28 Glass rod (reflection element) 29 Reflective surface 30 First optical imaging device 31 Second optical imaging device 40 Optical system 41 First optical imaging device 42 Second optical imaging device 43 First Convex lens 44 second convex lens 45 scattered light

Claims (2)

[Claims] 1. An optical imaging device for converging scattered light from an object to form an optical image of the object, which is orthogonal to the panel surface of an opaque or translucent panel. An optical imaging device, wherein a large number of reflecting elements having reflecting surfaces are arranged. 2. The optical element according to claim 1, wherein the reflecting element is formed of a transparent cylinder or a cylinder, and a part or all of an inner surface thereof or a part or all of an outer surface thereof forms the reflecting surface. Imaging device.