公开(公告)号：JPH01202727A

公开(公告)日：1989-08-15

申请号：JP2818688

申请日：1988-02-08

Applicant: CANON KK

Inventor： KAWAMURA MASAHARU ,  HARAGUCHI SHOSUKE ,  MORISHIMA HIDEKI

IPC: G03B17/00

Abstract: PURPOSE:To prolong the service life of a battery and to eliminate the difference of frame speed when continuous photographing is simulated and when film is loaded by stopping film feeding when film is not loaded and inhibiting a subsequent action in the time required for feeding film. CONSTITUTION:The title camera is provided with a detecting means which detects whether film is loaded or not and a control circuit which stops motor driving in order to feed film after preparating actions are completed when the detecting means detects there is not loaded film and which inhibits next release in a prescribed time. Therefore, when film is not loaded, preparing actions such as shutter charging are performed, but wasteful driving for feeding film is not carried out. Thus, power consumption can be reduced when the camera is demonstrated, thereby prolonging the service life of the battery. However, necessary motion for demonstration such as shutter traveling can be possible.

公开(公告)号：JP2003204516A

公开(公告)日：2003-07-18

申请号：JP2002356808

申请日：2002-12-09

Applicant: CANON KK

Inventor： YAMAMOTO MASAKUNI ,  MATSUMURA SUSUMU ,  YAMAGUCHI EIJI ,  HOSHI HIROAKI ,  MORISHIMA HIDEKI ,  HASEGAWA MITSUHIRO ,  IIDA ICHIRO ,  ENDO KIYONOBU

IPC: H04N5/91 ,  G11B27/00

Abstract: PROBLEM TO BE SOLVED: To provide a still picture managing method and a still picture managing apparatus capable of easily managing still pictures. SOLUTION: The still picture managing method of this invention comprises: a step for displaying in parallel reduced images of still pictures stored in one directory; a step for deleting one still picture from the one directory; and a step for displaying in parallel reduced images of still pictures existing in the one directory after deleting the one still picture from the one directory. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003202518A

公开(公告)日：2003-07-18

申请号：JP2001401805

申请日：2001-12-28

Applicant: CANON KK

Inventor： NISHIHARA YUTAKA ,  SUDO TOSHIYUKI ,  SAITO YOSHIHIRO ,  MORISHIMA HIDEKI ,  OZAKA TSUTOMU ,  TAKAGI AKINARI

IPC: G02B30/25 ,  H04N13/04 ,  G02B27/26

Abstract: PROBLEM TO BE SOLVED: To solve the problem wherein flicker is caused in an observed image by a conventional stereoscopic image display device if a display device of a high response speed (a refresh rate is ≥120 Hz) is not used as an image display device. SOLUTION: In the stereoscopic image display device having light separation systems 6 to 8 for separating left eye image light and right eye image light in accordance with the phase states of the left eye image light and right eye image light generated by an image light generation system, the image light generation system is provided with a left eye image display means 1 for generating left eye image light, a first polarization element 3 oppositely arranged on the display surface of the means 1, a right eye image display means 2 for generating right eye image light, a second polarization element 4 oppositely arranged on the display surface of the means 2, and an image light synthesis means 5 for synthesizing the left eye image light and the right eye image light having respectively different phase states. COPYRIGHT: (C)2003,JPO

公开(公告)号：JP2003149589A

公开(公告)日：2003-05-21

申请号：JP2001349349

申请日：2001-11-14

Applicant: CANON KK

Inventor： MATSUNAGA TOMOMI ,  YAMAZAKI SHOICHI ,  INOGUCHI KAZUTAKA ,  TAKAGI AKINARI ,  MORISHIMA HIDEKI

IPC: G02B13/18 ,  G02B17/08 ,  G02B25/00 ,  G02B27/02 ,  G03B17/17 ,  H04N5/225 ,  H04N5/66 ,  H04N5/72 ,  H04N5/74

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 the light which is made incident from the original picture passing through the 3rd surface B is reflected by the 1st surface A, reflected by the 2nd surface C, reflected by the 1st surface, reflected by the 2nd surface, reflected by the 1st surface, reflected by the 3rd surface, transmitted through the 1st surface, and guided to the eye of the observer or the projected surface. The imaging optical system which guides light from a subject to an imaging surface is provided with 1st, 2nd, and 3rd surfaces as optical surfaces; and the light which is made incident from the subject through the 1st surface is reflected by the 3rd surface, reflected by the 1st surface, reflected by the 2nd surface, reflected by the 1st surface, reflected by the 2nd surface, reflected by the 1st surface, reflected by the 2nd surface, reflected by the 1st surface, transmitted by the 3rd surface, and guided to the imaging surface.

公开(公告)号：JPH10224821A

公开(公告)日：1998-08-21

申请号：JP2524297

申请日：1997-02-07

Applicant: CANON KK

Inventor： IIJIMA KATSUMI ,  MORI KATSUHIKO ,  MORISHIMA HIDEKI ,  KURAHASHI SUNAO

IPC: G03B35/00 ,  H04N13/02 ,  H04N13/04

Abstract: PROBLEM TO BE SOLVED: To provide the compound-eye camera provided with a stereoscopic display function where no high display speed (frame rate) is required in the case of displaying a stereoscopic video image. SOLUTION: The compound-eye camera 1 is provided integrally with image pickup optical systems 2, 3 and a display device 4, two images having a parallax picked up by the image pickup optical systems 2, 3 are split as stripes in a horizontal direction and arranged alternately by one line each to be synthesized with a stripe image and the stripe synthesis image is displayed on the display device 4 by an incorporated display control section. The display device 4 is configured to be sequential stacks of a back light 5, an aperture mask 6 having a chequer opening, lenticular lenses 7, 8, a PDLC 9, a display picture element section 10 and a glass board 11, and different directivity is provided to a display of an odd numbered line and a display of an even numbered line of a strip image and a stereoscopic vision is obtained at a prescribed view position.

公开(公告)号：JPH1078563A

公开(公告)日：1998-03-24

申请号：JP25094396

申请日：1996-09-02

Applicant: CANON KK

Inventor： MORISHIMA HIDEKI ,  TANIGUCHI TAKASATO ,  NOSE HIROYASU

IPC: G03B35/18 ,  G02B27/22 ,  G02F1/13 ,  H04N13/00 ,  H04N13/04

Abstract: PROBLEM TO BE SOLVED: To provide a stereoscopic picture display method and a stereoscopic picture display device using the method by which a stereoscopic picture is observed without increasing display speed required for a display device and an observation area where stereoscopic vision is possible is made wide. SOLUTION: This device is provided with a light source means 1 illuminating a mask substrate 2 where a mask pattern 9 consisting of checkered aperture part 8 and light shielding part is formed with a surface light source, a vertical cylindrical lens array 3 and the transmission type display device 4. In the case of displaying a horizontal stripe picture consisting of a parallax picture for a right eye and a parallax picture for a left eye on the device 4, transmitting luminous flux projected from the light source means 1 through the horizontal stripe picture through the lens array 3 and separating the luminous flux to at least two areas so as to enable an observer to visually confirm it as the stereoscopic picture, the width in a horizontal direction of a pair of the aperture part 8 and the light shielding part in the horizontal direction on the mask pattern 9 is twice or more times as large as the size of a picture element in the horizontal direction of the display device 4.

公开(公告)号：JPH09311295A

公开(公告)日：1997-12-02

申请号：JP14861296

申请日：1996-05-20

Applicant: CANON KK

Inventor： MORISHIMA HIDEKI ,  NOSE HIROYASU ,  TANIGUCHI TAKASATO

IPC: G03B35/18 ,  G02B27/22 ,  H04N13/04

Abstract: PROBLEM TO BE SOLVED: To observe a stereoscopic image by separating right and left stripe picture elements by controlling the mutual relative positions of plural mask substrates and changing a mask pattern obtained by laying over a plurality of mask substrates. SOLUTION: A composite barrier 7H is constituted of mask substrates 62a and 62b. The mask pattern 63 is formed by laying over partial mask patterns 63a and 63b. The mask substrates 62a and 62b are relatively moved by specified quantity in a horizontal direction maintaining a very small interstice by making surfaces where the patterns are formed mutually confront by a moving means 20. Two mask substrates change the relative positions in the case of three- dimensional image display, so that the mask pattern 63 of the composite barrier 7H is changed. Thus, at the time of the three-dimensional image display, the mask substrates 62a and 62b are laid over in a state where a deviation is eliminated in a right-and-left direction. Then, only the aperture part 64 of the partial mask patterns 63a and 63b is opened, and the other part is light-shielded, so that a mode is changed so as to observe a stripe image as a stereoscopic image.

公开(公告)号：JPH0918897A

公开(公告)日：1997-01-17

申请号：JP16738095

申请日：1995-07-03

Applicant: CANON KK

Inventor： HOSHI HIROAKI ,  TANIGUCHI TAKASATO ,  SUDO TOSHIYUKI ,  MORISHIMA HIDEKI ,  INOGUCHI KAZUTAKA

IPC: G02B27/22 ,  G02F1/1335 ,  H04N13/04

Abstract: PROBLEM TO BE SOLVED: To improve the brightness and also to substantially reduce the crosstalk of a stereoscopic image display device by providing the optical modulation elements which are arrayed in a two-dimensional form, a parallax barrier which has a prescribed opening part and a light shielding part, and an element which divides and deflects the light received from an illumination light source. SOLUTION: Plural parallax images inputted to a terminal 10 are divided into stripes by a stripe generation circuit 8 and synthesized with each other into a synthetic image. The data on the synthetic image are inputted to a display driver 7 for display of the stripe image syntheses 6. On the other hand, a back light 5 is lit by a back light driver 9 to serve as a diffusing surface light source. The light of this light source is converted into the illumination luminous flux that has high directivity within only a surface including the array direction of optical modulation elements. Then the illumination luminous flux is made incident on a hologram diffraction grating 3. This gating 3 includes the concentrical grating patterns within its surface and therefore the diffracted beams are condensed in the directions of both right and left eyes ER and EL respectively. Thus the images which are effectively bright can be obtained.

公开(公告)号：JPH08286140A

公开(公告)日：1996-11-01

申请号：JP11004595

申请日：1995-04-11

Applicant: CANON KK

Inventor： MORISHIMA HIDEKI ,  TANAKA TSUNEFUMI

IPC: G02B27/02

Abstract: PURPOSE: To reduce the volume and the weight of an entire device and to improve operability by constituting an image producing means and a part of optical system or only a part of optical system as a moving part and moving the moving part, thereby performing pupil alignment and the adjustment of a pupil distance. CONSTITUTION: The part of eccentric mirrors 2-4 to 2-1 being a 2nd optical member is set in a housing A, the moving part constituted of an eccentric mirror 2-5 being a 1st optical member and an LCD 4 is set in a housing BR, and the housing BR is constituted to move in a specified direction. Since the optical system for a left eye is constituted similarly to the optical system for a right eye, the exit pupils of the optical systems for the right and the left eyes are moved in an opposite direction each other in a direction nearly orthogonal to an observation direction by respectively moving the moving part constituted of the LCD 4 and the mirror 2-5 and corresponding members for the left eye symmetrically in a specified direction. Thus, the pupil distance of a twin-lens type HMD is easily adjusted.

公开(公告)号：JPH07325264A

公开(公告)日：1995-12-12

申请号：JP11854694

申请日：1994-05-31

Applicant: CANON KK

Inventor： MORISHIMA HIDEKI ,  NANBA NORIHIRO ,  AKIYAMA KENJI

IPC: G02B27/02 ,  H04N5/64 ,  H04N13/04

Abstract: PURPOSE:To display a picture which is more stereoscopic and full of presence and reality by a picture display device constituted of a picture generator for displaying the picture and an optical system for guiding a luminous flux from the picture generator to the pupil of an observer. CONSTITUTION:In the picture display device constituted of the picture generator 11 for displaying the picture and the optical system for guiding the luminous flux from the generator 11 to the pupil of the observer; the optical system is provided with a relay optical system 12 and a reflecting surface whose shape is not rotationally symmetric with respect to the optical axis of the optical system 12 and which has optical power along the luminous flux going toward the pupil from the generator 11 and a virtual image surface 16 formed by the optical system is made a curved surface.