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公开(公告)号：JPH04106517A
公开(公告)日：1992-04-08
申请号：JP22465490
申请日：1990-08-27
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA
Abstract: PURPOSE:To clearly confirm the exterior above a virtual image and to obtain a device which is extremely light in weight by reducing a difference between the angle of visual field in the case of viewing the virtual image and external light transmissivity on the periphery. CONSTITUTION:This device is provided with a display means 1 for displaying an image fetched from the outside, a holographic combiner 12 which magnifies the image so as to display the virtual image, a light shielding means 6 arranged between the display position of the virtual image 5 and the holographic combiner 12, and polarizing means 10a and 11a provided in relation to the light shielding means 6. The polarizing means 10a and 11a are arranged so that the areas thereof are extended to cover the angle of visual field in the case of viewing the virtual image 5. The image projected on the display 1 for view finder is magnified by the holographic combiner 12 and displayed as the virtual image 5 ahead of an eyeball 7. By electrically closing a liquid crystal shutter 6 and the polarizing filters 10a and 11a, the external light 9 is intercepted and the virtual image 5 is clearly viewed. By opening the shutter 6 and the filters 10a and 11a, the external light 8 is clearly confirmed, and then both of the virtual image and the exterior are confirmed by making the display 1 emit light.
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公开(公告)号：JPH041717A
公开(公告)日：1992-01-07
申请号：JP10376490
申请日：1990-04-19
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA
Abstract: PURPOSE:To obviate the erasing of a virtual image even if an outside scene is extremely bright so as to allow the expression of the opaque virtual image and to allow the pure color expression without being affected by the background color by synthesizing the output of a display section and the output of a shielding means thereby forming the virtual image. CONSTITUTION:This optical device has an objective lens 14 which takes in the light form the outside scene, an eyepiece lens 18 which obtains the synthesized virtual image, a light shielding means 15 which shields the transmission of the light of generated image signal through the part corresponding to the image and the display section 17 which displays the image so as not to emit the light except in the part corresponding to the image. The output of the display section 17 and the output of the shielding means 15 and synthesized to form the virtual image 33. The displaying of the virtual image of the shadow in the outside scene is executed in this way and since the opaque virtual image can be displayed, the pure color expression without being affected by the background color is possible. The expression of a black color which is heretofore impossible with a head up display is possible as well. The virtual image does not disappear even if there is a bright object, such as illumination, in the background.
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公开(公告)号：JPS628276A
公开(公告)日：1987-01-16
申请号：JP14700485
申请日：1985-07-04
Applicant: SONY CORP
Inventor： NAKAMURA TOSHINORI , KOMATSU HIROSUKE , KIMURA MUTSUMI , KAWAMURA AKIRA
Abstract: PURPOSE:To prevent a mobile picture or a cursor from protruding from a designated area and being displayed by gating the data of the animation picture or the cursor by an area designating signal. CONSTITUTION:To the mobile picture RAM 20, a character RAM 30, and a graphic RAM 40, a reading address is supplied from a picture display control part 100, and the read data is supplied to respective one of input terminals of AND gates 115-117. When area designating signals from an mobile picture display area designating part 112, a character display area designating part 113 and a graphic display area designating part 114 are respectively '1', the respective gates 115-117 are opened and the reading data from the RAM is taken out. Outputs, of the gates 115-117 are supplied to a monitor receiver through an adding circuit 18, a D/A converter 50, and an amplifier 60.
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公开(公告)号：JPS61217097A
公开(公告)日：1986-09-26
申请号：JP5796885
申请日：1985-03-22
Applicant: SONY CORP
Inventor： NAKAMURA TOSHINORI , KOMATSU HIROSUKE , KIMURA MUTSUMI , KAWAMURA AKIRA
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公开(公告)号：JPS61215587A
公开(公告)日：1986-09-25
申请号：JP5632485
申请日：1985-03-20
Applicant: SONY CORP
Inventor： KOMATSU HIROSUKE , KIMURA MUTSUMI , KAWAMURA AKIRA , NAKAMURA TOSHINORI
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Patent Agency Ranking
公开(公告)号：JP2004318041A
公开(公告)日：2004-11-11
申请号：JP2003184218
申请日：2003-06-27
Inventor： KAWAMURA AKIRA
IPC: G02F1/13 , G02B27/02 , G02B27/22 , G02B27/28 , G02F1/1335 , G02F1/13357
Abstract: PROBLEM TO BE SOLVED: To clearly display an aerial image having excellent reality by eliminating the effect of external light made incident from the outside. SOLUTION: An aerial image display device 10 is provided with a polarized light output display 11 for displaying an image indicating an object to be displayed as an aerial image RIM, a concave mirror 13 to be an optical member for forming light emitted from the polarized light output display 11 as the aerial image RIM and a half mirror 14, a circular polarization element 15 and a polarizing filter 16 which are dimming means for dimming external light made incident from the external. External light made incident from the external and reflected by the concave mirror 13 is transmitted through the half mirror 14 again, passed through the circular polarization element 15 and changed to straight polarized light. Since external light passed through the circular polarization element 15 can not be passed through the polarizing filter 16, the external light does not reach observer's eyes EYE. COPYRIGHT: (C)2005,JPO&NCIPI
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公开(公告)号：JPH08237689A
公开(公告)日：1996-09-13
申请号：JP4056495
申请日：1995-02-28
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA
Abstract: PURPOSE: To fix video images even when a head part is moved like natural movement in daily life by moving a position where the video images are displayed in a direction and for a moving amount for offsetting the movement of virtual images by the movement of the head part. CONSTITUTION: A frame 1 is fixed and attached to a head part mounting mechanism 26, video signals are supplied through a cable 11 to a display control part 10 by a video signal output device 12 such as a VTR or the like, the video signals are converted to control signals for controlling video display parts 3 and 4 and the video display parts 3 and 4 are controlled through the cable 9. Then, since the display control part 10 moves the position where the video images are displayed in the video display parts 3 and 4 disposed on the frame 1 to be fitted to the head part of a user in the direction and for the moving amount for offsetting the movement by the movement of the head part of the user for the virtual images shown to the user by lenses 5 and 6, the virtual images are fixed on space and observed even when the head part is moved.
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公开(公告)号：JPH0879656A
公开(公告)日：1996-03-22
申请号：JP20670694
申请日：1994-08-31
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA
Abstract: PURPOSE: To provide a head mounted display device, by which a user does not feel a troublesomeness at the time of viewing an image and the deterioration of a liquid crystal layer in a liquid crystal shutter hardly occurs. CONSTITUTION: A clock signal generated in a crystal oscillation circuit 21 is set to a frequency by which a flicker is not felt in a counter circuit 22. Control signals set in a volume 24 and a DC bias setting circuit 26 are transmitted to a non-inversion amplification computing element 30 and an inversion amplification computing element 31 through a buffer 27 and a signal line 29. A DC part of non-inversion output which is operation-processed in the non-inversion amplification computing element 30 is removed by a DC bias cut circuit 34a. The DC part of inversion output which is operation-processed in the inversion amplification computing element 31 is similarly removed by a DC bias cut circuit 34b, and output is impressed on the impression terminal 36 or 37 of the liquid crystal shutter 5.
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公开(公告)号：JPH0764015A
公开(公告)日：1995-03-10
申请号：JP23884793
申请日：1993-08-30
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA
Abstract: PURPOSE:To perfectly make left and right image quality coincide with each other by a simple constitution by providing a left and a right lens means enlarging video light split by a spectrally splitting means and guiding it to the left and the right eyeballs of an observer. CONSTITUTION:Light reflected on a beam splitter 27 and bent by 90 deg. is inclined by 45 deg. with respect to the center axis 26 of the video light. Besides, it is reflected on a mirror 28 arranged in parallel with the splitter 27 and bent downward by 90 deg.. Moreover, it is enlarged by a lens for a right eye 29 and reflected on a beam splitter 24 arranged being inclined by 45 deg. with respect to the center axis 26 of the video light and bent by 90 deg.. Then, it is guided to the right eye 31. On the other hand, the light transmitted through the splitter 27 is reflected on a mirror 32 and bent by 90 deg.. Besides, it is advanced toward a mirror 33, reflected on it and bent by 90 deg.. Moreover, it is enlarged by a lens for the left eye 34 and the virtual image thereof is reflected on the splitter 24 and bent by 90 deg.. Then, it is guided to the left eye 35. Thus, the image quality of videos made incident on both left and right eyes 35 and 31 can be made entirely identical.
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公开(公告)号：JPH06337389A
公开(公告)日：1994-12-06
申请号：JP12578193
申请日：1993-05-27
Applicant: SONY CORP
Inventor： KAWAMURA AKIRA , KOSUGI ICHIRO , MIZOGUCHI MIKI , ITO MASAHIKO
IPC: G02B5/30 , G02B27/02 , G02F1/13 , G02F1/1335
Abstract: PURPOSE:To provide an optical visual device by which a clear video is viewed even under bright environment especially by using a dimmer means whose transmissivity is varied. CONSTITUTION:This device is constituted so that a surrounding landscape and the video reflected on a pair of small-sized displays 11 and 11 are opticaily superimposed to be viewed through an optical system 10 constituted of a pair of reflection mirrors 12 and 12, a pair of oculars 13 and 13, and a polarizing beam splitter 14. A dimming shutter 15 whose transmissivity is varied is installed in front of the splitter 14. For example, an electrochromic element is used as the shutter 15, and the transmissivity is freely varied by electrochemical oxidation-reduction reaction. Thus, the clear video is always viewed even under the bright or dark environment by changing the transmissivity of the shutter 15.
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