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1. 发明授权

US6392767B2 Method for producing a hologram and a display device using the same 失效
标题翻译：制造全息图的方法和使用该全息图的显示装置
公开(公告)号：US6392767B2
公开(公告)日：2002-05-21
申请号：US74990000
申请日：2000-12-29
申请人： DENSO CORP , NIPPON SOKEN
发明人： KANDA TOMOYUKI , TAKADA KENICHIRO
IPC分类号： G02B5/32 , G03H1/04 , G03H1/22 , G03H1/28 , H04N7/14
CPC分类号： G02B5/32 , G03H1/0256 , G03H1/04 , G03H1/0404 , G03H1/0486 , G03H1/22 , G03H1/265 , G03H1/28 , G03H2001/2239 , G03H2001/306 , G03H2223/14 , G03H2240/51 , G03H2240/53 , G03H2250/32 , G03H2260/10 , H04N7/144
摘要： A method for producing a hologram recording an interference fringe formed by an object light and a reference light on a photosensitive dry plate, and the object light either having diffusing and scattering characteristics or being passed through an optical diffusion body, mainly includes the following steps: In a first step, a ratio etaRO/etaOO of a first diffraction efficiency etaOO and a second diffraction efficiency etaRO, is calculated. The diffraction efficiency etaOO is dependent on two object light beams. The efficiency etaRO is dependent on the object light and the reference light. In a second step, the intensity EO of the object light and the intensity ER of the reference light is adjusted in such a way that the ratio etaRO/etaOO is set to at least 10 and the efficiency etaOO does not exceed 5%.A display device using the above hologram is structured by a display unit for generating a signal light; a hologram screen formed by either reflection or transmission hologram, and a projecting unit for projecting the signal light to the hologram screen.According to the present invention, it is possible to easily produce a hologram, for example, a screen hologram, having no cloudiness or cloudy state when an observer observes an image displayed on the screen, and to a display device using the above hologram screen.
摘要翻译：一种用于产生记录由感光干板上的物体光和参考光形成的干涉条纹的全息图的方法以及具有漫射和散射特性或通过光漫射体的目标光主要包括以下步骤：在第一步骤中，计算第一衍射效率etaOO和第二衍射效率etaRO的比率ηηRO/ eta。衍射效率etaOO取决于两个物体光束。效率etaRO取决于物体光和参考光。在第二步骤中，调整对象光的强度EO和参考光的强度ER，使得etaRO / eta00的比率设定为至少10，效率etaOO不超过5％.A显示使用上述全息图的装置由用于产生信号光的显示单元构成; 通过反射或透射全息图形成的全息屏幕和用于将信号光投射到全息屏幕的投影单元。根据本发明，可以容易地生成全息图，例如没有浑浊的全息图或观察者观察屏幕上显示的图像时的混浊状态，以及使用上述全息图的显示装置。

2. 发明专利

DE19756552A1 Angular velocity sensor for detecting rotational angular velocity of vehicle about given axis 未知
公开(公告)号：DE19756552A1
公开(公告)日：1998-06-25
申请号：DE19756552
申请日：1997-12-18
申请人： DENSO CORP
发明人： TAKEUCHI YOSHINOBU , HAYASHI SATOSHI , WATARAI TAKEHIRO , ODA SHINRO , MORIWAKI JUNJI , KANDA TOMOYUKI , AKIMOTO KATUHIDE
IPC分类号： G01C19/56 , G01P9/04
摘要： The sensor (2) is rotated about a given axis (z) with detection of the rotation rate via an oscillator (4) containing a piezoelectric element, caused to oscillate in a direction perpendicular to the rotation axis. The base (3) for attaching the sensor to the vehicle has a reference surface for supporting the oscillator, secured to the base via a fixing device (6) at one of the oscillator nodes, with a fixing section (36) welded to the reference surface. Bending element (24), earth electrode (22) are formed, with arms (12,14).

3. 发明专利

DE19756552B4 未知
公开(公告)号：DE19756552B4
公开(公告)日：2008-02-14
申请号：DE19756552
申请日：1997-12-18
申请人： DENSO CORP
发明人： TAKEUCHI YOSHINOBU , HAYASHI SATOSHI , WATARAI TAKEHIRO , ODA SHINRO , MORIWAKI JUNJI , KANDA TOMOYUKI , AKIMOTO KATUHIDE
IPC分类号： G01C19/56

4. 发明专利

DE4444973C2 未知
公开(公告)号：DE4444973C2
公开(公告)日：2003-04-17
申请号：DE4444973
申请日：1994-12-16
申请人： DENSO CORP
发明人： KATO KENZI , KANDA TOMOYUKI
IPC分类号： G01C19/56 , G01C19/5607 , G01C19/5642 , G01P15/00 , G01P15/10 , G01P9/04 , G01P3/12
摘要： A vibration-type angular-velocity sensor which can be reduced in size in the direction of the axis of the angular-velocity to be measured. A vibration body 11 comprises a pair of parallel driving plates 121 and 122 bent into a U-shape and extending in a Y direction, and a pair of detection plates 151 and 152 are so formed as to extend in mutually opposite directions in an X-axis direction by bending outwards the distal ends of the driving plates 121 and 122, respectively. The driving plates 121 and 122 are supported at a connecting plate 13 portion by a support member 14 in such a manner as to be capable of vibration. Piezoelectric devices 161 and 162 are bonded to the surfaces of the driving plates 121 and 122, respectively. When an A.C. voltage is applied, the driving plates are vibrated in mutually opposite directions. When a rotary angular-velocity, around the Z-axis of the sensor, generates a force in a Y-axis direction, due to the Coriolis effect, on the detection plates 151, 152, the Coriolis force is detected by piezoelectric devices 171 and 172. Accordingly, detection signals proportional to the angular-velocity are outputted from the detection piezoelectric devices 171 and 172.

5. 发明专利

JPH10232134A ANGULAR VELOCITY SENSOR 失效
公开(公告)号：JPH10232134A
公开(公告)日：1998-09-02
申请号：JP20316597
申请日：1997-07-29
申请人： DENSO CORP
发明人： ODA SHINRO , MORIWAKI JUNJI , TAKEUCHI SACHIOSA , KANDA TOMOYUKI , AKIMOTO KATSUHIDE
IPC分类号： G01C19/56 , G01C19/5628 , G01P9/04
摘要： PROBLEM TO BE SOLVED: To provide an angular velocity sensor for reducing an unneeded vibration that deteriorates a detection accuracy. SOLUTION: An angular velocity sensor is constituted of a substrate 3 that is formed in a flat-plate shape, a vibrator 4 that is made of a piezoelectric single body and where various kinds of electrodes are mounted, and a fixing member 6 that is included between the vibrator 4 and the substrate 3 and is used to fix the vibrator 4 to the substrate 3. Also, the fixing member 6 that is adhered in one piece with the vibrator 4 is subjected to laser welding to the substrate 3 on the side surface (a surface that continues to a fixing surface 6b) of a connection part 32 while a fixing surface is directly adhered to the substrate 3. More specifically, the fixing member 6 is fixed to an area to the substrate 3 without including any foreign objects, thus retaining the vibrator 4 mounted to the fixing member 6 accurately and horizontally and hence preventing unneeded vibration components that prevent detection from being generated at the vibrator 4 for accurately detecting an angular velocity.

6. 发明专利

JPH10133283A PRODUCTION OF TRANSMISSION TYPE HOLOGRAM SCREEN 失效
公开(公告)号：JPH10133283A
公开(公告)日：1998-05-22
申请号：JP25434697
申请日：1997-09-02
申请人： DENSO CORP , NIPPON SOKEN
发明人： NISHII KATSUMASA , KOIKE OSAMU , KANDA TOMOYUKI , KUROKAWA KAZUMASA , TAKADA KENICHIRO , SHIOZAWA MASAHIRO
IPC分类号： G02B5/32 , G03B21/62 , G03H1/04
摘要： PROBLEM TO BE SOLVED: To provide a process for producing a transmission type hologram screen of a wide visual area. SOLUTION: A photosensitive member 50 and a light source for reference light are arranged on the same side with respect to a light diffuser 52 and a light source of object light is arranged on the other side of the light diffuser 52. The diffused light transmitted through the light diffuser 52 is defined as the object light 36 and the light which is radiated from the light source for the reference light and is specularly reflected by the light diffuser (or a half mirror, reflection type hologram element, etc., arranged on the front surface of the light diffuser) is defined as the reference light 35. The process for production which uses the transparent light diffuser, further the method for curving the light diffuser to the photosensitive member 50 side, the method of using the light diffuser having directivity, the method in which the curved light diffuser is a Lippmann type hologram, the method of constituting the light diffuser by two sheets of holograms, etc., are included as well in the method described above.

7. 发明专利

JPH1020751A FORMATION METHOD OF FILM-SHAPED HOLOGRAM 失效
公开(公告)号：JPH1020751A
公开(公告)日：1998-01-23
申请号：JP17627696
申请日：1996-07-05
申请人： NIPPON SOKEN , DENSO CORP
发明人： YOSHIDA KAZUHIKO , HASHIKAWA ATSUSHI , KANDA TOMOYUKI , NISHII KATSUMASA
IPC分类号： G03H1/02 , G03H1/18
摘要： PROBLEM TO BE SOLVED: To form the hologram onto a film by recording an image by using a hologram photographic plate in which the adhesion force between the film and a photosensitive agent layer, is stronger than that between a supporting base and the photosensitive agent layer. SOLUTION: A film material in which the adhesion force between a photosensitive agent layer 2 and a film 4, is stronger than that between a supporting base 1 and the photosensitive agent layer 2 in the stage before the recording of the hologram, is used as a hologram photographic plate having the photosensitive agent layer 2 on the supporting base 1, or the film 4 is adhered to the photosensitive agent layer 2 through an adhesive agent and a bond to be used as the hologram photographic plate, and then the film 4 and the photosensitive agent layer 2 are separated from the supporting base 1 after the hologram recording, to form the hologram. In this time, the film-shaped hologram can be made by selecting the film 4. In this case, the adhesion force of the transparent film 4, the adhesive agent and the photosensitive agent, should be stronger that between the supporting base 1 and the photosensitive agent, to separate the photosensitive agent from the supporting base 1 in the condition that the photosensitive agent is adhered to the transparent film side, when the transparent film 4 is separated.

8. 发明专利

JPH09168141A DISPLAY DEVICE WITH IMAGE PICKUP DEVICE 失效
公开(公告)号：JPH09168141A
公开(公告)日：1997-06-24
申请号：JP34795395
申请日：1995-12-14
申请人： DENSO CORP
发明人： TAKADA KENICHIRO , KANDA TOMOYUKI
IPC分类号： H04N5/225 , H04N7/15
摘要： PROBLEM TO BE SOLVED: To obtain coincidence with a sight of line of a viewer by using a transparent hologram screen so as to generate a display image thereby picking up an image of the viewer seen through a rear side of the screen. SOLUTION: A display device 11 uses a back light source 12 to emit light to a display image on an LCD panel 13 and an image of a signal light 31 recording display information is formed onto a hologram screen 15 via an image forming optical system 20. The hologram screen 15 is provided with a diffusion plate consisting of a transparent hologram and a viewer 81 visualizes display information by a hologram diffused light 33 generated therein. The refracting characteristic of the hologram is matched so that a center angle of the diffused light 32 is in a direction of the viewer 81 at an incident angle of the signal light 31. The hologram screen 15 acts as a transparent plate in other angles and an image pickup camera 25 picks up an image of the viewer 81 in front of the screen seen through the rear side of the hologram screen 15. The incident light axis of the image pickup camera 25 is arranged close to a sight of line of the viewer 81 viewing the center of the hologram image.

9. 发明专利

JPH09127612A PRODUCTION OF HOLOGRAM 失效
公开(公告)号：JPH09127612A
公开(公告)日：1997-05-16
申请号：JP28741995
申请日：1995-11-06
申请人： DENSO CORP , NIPPON SOKEN
发明人： NISHII KATSUMASA , KOIE KAZUTOSHI , KAMIYA KATSUMI , ISHIZUKA ATSURO , KANDA TOMOYUKI
IPC分类号： G03B21/56 , G03H1/04
摘要： PROBLEM TO BE SOLVED: To provide a process capable of easily producing a hologram having less clouding and fogging. SOLUTION: The ratio n0 /nR where n0 is the magnification of a lens 11 for object light to disperse the object light and nR is the magnification of a lens 18 for reference light for diverging reference light, is specified to

10. 发明专利

JPH11102153A HOLOGRAM DEVICE AND HOLOGRAM PRODUCING METHOD 失效
公开(公告)号：JPH11102153A
公开(公告)日：1999-04-13
申请号：JP34957297
申请日：1997-12-18
申请人： DENSO CORP
发明人： HATTORI HIDEKAZU , NISHII KATSUMASA , KANDA TOMOYUKI , TAKADA KENICHIRO , MATSUMOTO TORU
IPC分类号： G02B5/32 , G03H1/04
摘要： PROBLEM TO BE SOLVED: To obtain a large-sized hologram capable of realizing full color reproduction in a required visual area by the use of a monochrome laser by individually exposing plural holograms, and then integrally arranging plural holograms through a connection means so as to hold two-dimensional spread. SOLUTION: Plural holograms 30 are individually exposed and then integrally arranged through the connection means so as to hold the two-dimensional spread. For example, in the case of dividing the hologram 30 into two up and down, the size of a diffusing body 24 required to satisfy the visual area of the hologram 30 after division is the size large enough to fit the outside of an area obtained by linking the viewing points 125a and 125b at both ends of the visual area 125 with both ends 30a and 30b of the hologram 30. The hologram 30 at a lower part is installed so that positional relation between a photosensitive member and the diffusing body 24 may keep the positional relation between the hologram 30 and the diffusing body 24 symmetrically with respect to a symmetry axis 70 linking a viewing point β in the center of the visual area 125 and the end 30b of the hologram 30.

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