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公开(公告)号：JP2004007566A
公开(公告)日：2004-01-08
申请号：JP2003106557
申请日：2003-04-10
Applicant: CANON KK
Inventor： MORISHIMA HIDEKI , NISHIHARA YUTAKA , SUDO TOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To solve the following problem that a transmissive display has to be used as an image display unit in a conventional stereoscopic image display device, so that a degree of freedom is not provided in selecting displays. SOLUTION: The stereoscopic image display device includes the image display unit 1 wherein a plurality of horizontal pixel strings 1d1-1d3 comprising a plurality of horizontally arranged pixels D1-D9 is vertically disposed, so as to display a plurality of images respectively corresponding to a plurality of observing positions E1-E9, through the use of pixel groups being different at every image; a mask member 3 wherein a plurality of horizontal opening strings 1m1-1m3 comprising horizontally arranged opening parts by prescribed pattern is vertically disposed, so as to allow lights from the respective horizontal pixel strings to reach the respective observing positions through the horizontal opening strings corresponding to the horizontal pixel strings; and a restricting member 2 for restricting the lights from the respective horizontal pixel strings, to be made incident to the horizontal opening strings other than the horizontal opening strings corresponding to the horizontal pixel strings or the horizontal pixel strings being equivalent to them among the plurality of horizontal opening strings. COPYRIGHT: (C)2004,JPO
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公开(公告)号：JP2003202517A
公开(公告)日：2003-07-18
申请号：JP2001401804
申请日：2001-12-28
Applicant: CANON KK
Inventor： MORISHIMA HIDEKI , TAKAGI AKINARI , SUDO TOSHIYUKI , SAITO YOSHIHIRO , NISHIHARA YUTAKA
Abstract: PROBLEM TO BE SOLVED: To solve the problem wherein it is necessary to move a parallax barrier in a horizontal direction or the like synchronously with the switching of right and left parallax image displays in a conventional stereoscopic image display device. SOLUTION: This display device is provided with an image display means 1 for alternately displaying right and left parallax images in time division, first and second polarization elements 2, 4 having two kinds of polarizing action areas (a), (b) in which polarizing action for transmitting and interrupting incident light in accordance with the polarization direction of the incident light is fixed alternately in the lateral direction and a polarization conversion element 3 for converting the polarized state of image light obtained from approximately the whole of the display surface of the means 1 are arranged on the exit side of image light from the means 1, and a control means 5 which switches the polarization conversion state of the element 3 synchronously with the display switching of the parallax images in the display means 1. COPYRIGHT: (C)2003,JPO
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63.发明专利
公开(公告)号：JP2003149593A
公开(公告)日：2003-05-21
申请号：JP2001349353
申请日：2001-11-14
Applicant: CANON KK
Inventor： YAMAZAKI SHOICHI , MATSUNAGA TOMOMI , INOGUCHI KAZUTAKA , TAKAGI AKINARI , MORISHIMA HIDEKI
Abstract: PROBLEM TO BE SOLVED: To make a display optical system and an imaging optical system have a wide angle of view by increasing the power of the optical system to constitute the display optical system or imaging optical system by using a small-sized image display element. SOLUTION: The display optical system which guides light from an original picture 3 to the eye of an observer or a projected surface is provided with 1st, 2nd, and 3rd surfaces as optical surfaces and has a 1st surface A which has at least reflecting operation and a 2nd surface C which reflects a light beam reflected by the 1st surface toward the 1st surface again, and a center view angle main light beam which is made incident on the 1st surface again is reflected to travel to the opposite side from the last time about the normal of the surface at its hit point. The imaging optical system which guides light from a subject to an imaging surface has a 1st surface which has at least operating and a 2nd surface which reflects the light beam reflected by the 1st surface to the 1st surface again, and the center field angle main light beam which is made incident on the 1st surface again is reflected to travel to the opposite side from the last time about the normal of the surface at its hit point.
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公开(公告)号：JPH10232369A
公开(公告)日：1998-09-02
申请号：JP5101097
申请日：1997-02-18
Applicant: CANON KK
Inventor： INOGUCHI KAZUTAKA , MORISHIMA HIDEKI , NOSE HIROYASU
Abstract: PROBLEM TO BE SOLVED: To enable stereoscopic pictures to be observed satisfactorily with high picture quality without seeing duplicate pictures in wide areas while mitigating assembly accuracies of principal parts in among respective elements constituting the whole of a device by specifying widths of the vertical direction and widths of the horizontal direction of opening parts and light shielding parts of a master pattern. SOLUTION: Luminuous fluxes from plural opening parts 6 of a master pattern 7 in which opening parts 6 and light shielding parts are arranged in the horizontal direction and the vertical direction with precribed plural pitches are passed through an optical system to light a display 1 on which at least two parallactic pictures are displayed. Picture information displayed on the display 1 are stereoscopically observed by respectively guiding luminous fluxes based on the two parallactic pictures displayed on the display 1 to the right eye ER and the left eye EL of an observer. Here, when widths of the opening parts 6 and the light shielding part 7 of the vertical direction are respectively defined as Vt, Vs, they are set so as become Vt
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65.发明专利
公开(公告)号：JPH10232367A
公开(公告)日：1998-09-02
申请号：JP5100897
申请日：1997-02-18
Applicant: CANON KK
Inventor： MORISHIMA HIDEKI , TANIGUCHI TAKASATO , NOSE HIROYASU
Abstract: PROBLEM TO BE SOLVED: To obtain a stereoscopic image without deteriorating the stereoscopic image quality even when an observer moves by imparting directivity to outgoing luminous flux with a cylindrical lens array, projecting a horizontal stripe image and moving a mask substrate or the cylindrical lens array in the horizontal direction according to the position of the observer when this image is visualized by the observer as the stereoscopic image. SOLUTION: The horizontal stripe image made into one image by alternately arranging a right stripe pixel Ri and a left stripe pixel Li obtained by respectively dividing a parallax image for right eye and a parallax image for left eye into many horizontal stripe shape pixels is displayed on a display device 4. The directivity is imparted to the luminous flux outgoing from a light source means 1 by the cylindrical lens 3, and the horizontal stripe image is projected, and the luminous flux is separated into two regions, so that the horizontal stripe image is visualized by the observer 54 as the stereoscopic image. The mask substrate 2 or the cylindrical lens array 3 is moved in the direction horizontal to display surface in accordance with the detected position of the observer 54.
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Patent Agency Ranking
公开(公告)号：JPH10170859A
公开(公告)日：1998-06-26
申请号：JP34469896
申请日：1996-12-09
Applicant: CANON KK
Inventor： MORISHIMA HIDEKI
Abstract: PROBLEM TO BE SOLVED: To obtain an image display device that prevent the pupil of an observer from being eclipsed at a peripheral view angle even when the observer moves his or her gaze and is suitable to a light or good-contrast HMD(head- mounted display). SOLUTION: This device displays an image on a display surface consisting of pixels of an image generating means 3 and guides luminous flux emitted from the image lit up by a lighting means by transmission to the pupil 1 of the observer through an optical system 2 to let the observer view a virtual image of the said image formed of the luminous flux. In this case, a 1st direction and a 2nd direction crossing the 1st direction almost at right angles are set in the formation plane of this virtual image, pieces of luminous flux emitted from the respective pixels have angles of divergence in the 1st and 2nd directions controlled, pixel by pixel, by a divergence angle converting means provided nearby them to generate pieces of luminous flux having different angles of divergence between the 1st and 2nd directions, and they are made incident on the optical system 2.
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公开(公告)号：JPH10170227A
公开(公告)日：1998-06-26
申请号：JP33218596
申请日：1996-12-12
Applicant: CANON KK
Inventor： YANO KOTARO , MORISHIMA HIDEKI
Abstract: PROBLEM TO BE SOLVED: To simply comprehend the size of a photographed body by solidly displaying a measure functioning as the standard of the scale of the photographed body through a multiplying factor according to the parallax of the photographed body and the parallax. SOLUTION: In a stereographic display device where a plurality of picked up images which is output from a stereo camera 200 and photographed from different view points and has a mutually overlapped vision fields is composed in a stereographic image composing section 200, the device has a corresponding point extracting section 104 for extracting a plurality of corresponding points in an indicated photographed body domain; a measure parameter computing section 106 for computing the multiplying factor functioning as the standard of the scale of the photographed body and a parallax according to the parallax among a plurality of picked up images at a point (photographed body) corresponding to the section 104; a measure image creating section 107 for creating a plurality of measure images on the basis of the computed measure multiplying factor and parallax; and image composing sections 108, 109 for composing the created measure image and a plurality of picked up images. In a stereographic image composing section 200, the output images of each of image composing sections 108, 109 are composed.
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公开(公告)号：JPH09211388A
公开(公告)日：1997-08-15
申请号：JP4046996
申请日：1996-02-02
Applicant: CANON KK
Inventor： TANIGUCHI TAKASATO , NOSE HIROYASU , MORISHIMA HIDEKI , SUDO TOSHIYUKI
Abstract: PROBLEM TO BE SOLVED: To enable the observation of always good stereoscopic image even if a display speed is slow by allowing the light transmitted through right or left stripe pixels at prescribed regions. SOLUTION: The light emitted from a back light 1 is deflected through apertures HR having centers at the prescribed position with respect to the optical axes of respective cylindrical lenses constituting a lenticular lens sheet 3 on a mask 2, is condensed to the linear from perpendicular to the region corresponding to the observer's right eye ER and is made incident on the right eye ER. The luminous fluxed thereof are modulated by the right stripe pixels R1 displayed on the display device 4 and the right stripe pixels R1 are observed by the right eye ER. The transmitted luminous fluxes past the apertures HL of the mask 2 with respect to the section corresponding to the scanning line under one signal line are deflected by the lenticular lens sheet 3 and further modulated by the left strip pixels L2 displayed on the display device 4. These luminous fluxed are condensed to the linear form perpendicular to the region corresponding to the position of the left eye EL are made incident on the left eye EL.
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公开(公告)号：JPH0974574A
公开(公告)日：1997-03-18
申请号：JP6550896
申请日：1996-02-27
Applicant: CANON KK
Inventor： TANIGUCHI TAKASATO , SUDO TOSHIYUKI , HOSHI HIROAKI , MORISHIMA HIDEKI , INOGUCHI KAZUTAKA , SUGAWARA SABURO
Abstract: PROBLEM TO BE SOLVED: To obtain a stereoscopic image display method which has a little crosstalk of a parallactic picture and is difficult to generate fricker and moire fringe and the stereoscopic image display device using the method. SOLUTION: Each of plural parallactic pictures from a parallactic picture source having parallactic picture information is divided into stripe picture elements, the part of the plural stripe picture elements are arrayed in a prescribed order, a stripe image 11A is composited, the image is displayed on a display 1 and the opening pattern composed of the light transmission part and the light shielding part of prescribed pitch is displayed on the spatial light modulation element 2 provided at the prescribed locations in front of or at the back of the display 1. When a stereoscopic vision is obtained by making the stripe picture element corresponding to each of left and right eyes of the stripe image 11A incident on the left and right eyes of an observer by the spatial light modulation element 2, the synchroni-zation for every picture element or every scanning line is performed on a scanning line performing a scanning by making the display 1 and the spatial light modulation element 2 correspond, and the stripe image 11A and the opening pattern are displayed.
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70.发明专利
公开(公告)号：JPH0915532A
公开(公告)日：1997-01-17
申请号：JP18867295
申请日：1995-06-29
Applicant: CANON KK
Inventor： MORISHIMA HIDEKI , TOKUMITSU JUN , TANIGUCHI TAKASATO , HOSHI HIROAKI , SUDO TOSHIYUKI , INOGUCHI KAZUTAKA
Abstract: PURPOSE: To make it possible to display stereoscopic images with high resolution by using a parallax barrier system by controlling the electric signal to be impressed on a phase shift member in synchronization with the display of striped images, thereby controlling the polarization direction of transmitted light. CONSTITUTION: The light emitted from an LCD display 1 having, for example, a back light source is linearly polarized light. The prescribed position in front of the display 1 is provided with the phase shift member (π cell) 30 which imparts two different phase shift states to the transmitted light by the electric signal and further, the prescribed position in front of the phase shift member 30 is provided with polarizing optical elements 2 alternately lined up with two polarizing plates having the striped optical axes long in a perpendicular direction intersecting orthogonally with each other in a horizontal direction. The right and left parallactic images from a parallactic image source 15 are split and synthesized and the striped images 11 are displayed on the display 1. The polarization direction of the light transmitted through the phase shift member 30 is controlled by controlling the electric signal impressed on the phase shift member 30 in synchronization with the display.
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