Patents by Inventor Shinro Inui
Shinro Inui has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 10782604Abstract: A projection-type video display apparatus includes: light sources, an illumination optical system, a display element, and a projection optical system. The illumination optical system includes: a mirror that reflects the illumination light toward the display element; a lens that is placed between the mirror and the display element on an optical path of the illumination light; a mirror angle adjustment mechanism that adjusts an angle of the mirror; a light-shielding plate that blocks unwanted light which is a portion of the illumination light reflected off the mirror toward the display element via the lens; and a light-shielding plate movable mechanism that is able to move the light-shielding plate between a first position to block the unwanted light and a second position to permit the unwanted light to illuminate the display element.Type: GrantFiled: June 29, 2016Date of Patent: September 22, 2020Assignee: MAXELL, LTD.Inventors: Shinro Inui, Hidemi Yamada, Eiki Ishijima
-
Patent number: 10691003Abstract: Provided is a technique capable of achieving a manually-operated lens shift mechanism in a space-saving manner in regard to a projection type image display apparatus. The lens shift mechanism includes a first base, a second base, a third base to which a projection lens is fixed, a first shift portion moves the projection lens in a vertical direction by moving the second base in the vertical direction with respect to the first base, and a second shift portion which moves the projection lens in a horizontal direction by moving the third base in the horizontal direction with respect to the second base. The first shift portion is arranged along the vertical direction to be coaxial with a first manual operation portion and a first rotation shaft. The second shift portion is arranged along the vertical direction to be coaxial with a second manual operation portion and a second rotation shaft.Type: GrantFiled: October 15, 2015Date of Patent: June 23, 2020Assignee: MAXELL, LTD.Inventors: Shinro Inui, Hiroshi Oshima
-
Patent number: 10642137Abstract: A lens shift mechanism 32 of the projection-type image display device 10 includes a horizontal movable base 60 for horizontally shifting a projection lens 31, a vertical movable base 70 for vertically shifting the projection lens 31, and a horizontal drive actuator 61 and a vertical drive actuator 71 for driving these bases 60, 70. Driving forces of these actuators 61, 71 are transmitted via respective lead screws 671 (751) and a pair of lead nuts 672, 672b (752, 752b) meshing with the lead screws to shift the bases 60, 70. A pair of lead nuts are installed with elastic bodies 672c (752c) applying a pressure such that the pair of lead nuts recede from or approach each other in the axial direction of the lead screw. In this configuration, a delay in the shift operation is removed by reducing a backlash in the lens movement.Type: GrantFiled: May 19, 2015Date of Patent: May 5, 2020Assignee: MAXELL, LTD.Inventors: Eiki Ishijima, Shinro Inui, Hiroshi Oshima, Nobuki Matsui
-
Publication number: 20190258150Abstract: A projection-type video display apparatus includes: light sources, an illumination optical system, a display element, and a projection optical system. The illumination optical system includes: a mirror that reflects the illumination light toward the display element; a lens that is placed between the mirror and the display element on an optical path of the illumination light; a mirror angle adjustment mechanism that adjusts an angle of the mirror; a light-shielding plate that blocks unwanted light which is a portion of the illumination light reflected off the mirror toward the display element via the lens; and a light-shielding plate movable mechanism that is able to move the light-shielding plate between a first position to block the unwanted light and a second position to permit the unwanted light to illuminate the display element.Type: ApplicationFiled: June 29, 2016Publication date: August 22, 2019Applicant: MAXELL, LTD.Inventors: Shinro INUI, Hidemi YAMADA, Eiki ISHIJIMA
-
Patent number: 10133159Abstract: Provided is a projection type image display device including an antivibration device 4 suppressing a vibration of a projection lens 2. The antivibration device 4 includes an antivibration base fixed to a display device body 1 and a friction sliding mechanism 8 provided on the antivibration base. The friction sliding mechanism 8 attenuates a vibration of the projection lens 2 by causing a lens-side sliding member 14 moving in synchronization with the projection lens 2 and a base-side sliding member 11 corresponding to a part of the antivibration base to contact each other in a pressed state so that both sliding members 14 and 11 frictionally slide on each other.Type: GrantFiled: July 23, 2015Date of Patent: November 20, 2018Assignee: Maxell, Ltd.Inventors: Hidemi Yamada, Shinro Inui
-
Publication number: 20180314138Abstract: Provided is a technique capable of achieving a manually-operated lens shift mechanism in a space-saving manner in regard to a projection type image display apparatus. The lens shift mechanism includes a first base, a second base, a third base to which a projection lens is fixed, a first shift portion moves the projection lens in a vertical direction by moving the second base in the vertical direction with respect to the first base, and a second shift portion which moves the projection lens in a horizontal direction by moving the third base in the horizontal direction with respect to the second base. The first shift portion is arranged along the vertical direction to be coaxial with a first manual operation portion and a first rotation shaft. The second shift portion is arranged along the vertical direction to be coaxial with a second manual operation portion and a second rotation shaft.Type: ApplicationFiled: October 15, 2015Publication date: November 1, 2018Applicant: MAXELL, LTD.Inventors: Shinro INUI, Hiroshi OSHIMA
-
Publication number: 20180210326Abstract: Provided is a projection type image display device including an antivibration device 4 suppressing a vibration of a projection lens 2. The antivibration device 4 includes an antivibration base fixed to a display device body 1 and a friction sliding mechanism 8 provided on the antivibration base. The friction sliding mechanism 8 attenuates a vibration of the projection lens 2 by causing a lens-side sliding member 14 moving in synchronization with the projection lens 2 and a base-side sliding member 11 corresponding to a part of the antivibration base to contact each other in a pressed state so that both sliding members 14 and 11 frictionally slide on each other.Type: ApplicationFiled: July 23, 2015Publication date: July 26, 2018Applicant: MAXELL, LTD.Inventors: Hidemi YAMADA, Shinro INUI
-
Publication number: 20180143520Abstract: A lens shift mechanism 32 of the projection-type image display device 10 includes a horizontal movable base 60 for horizontally shifting a projection lens 31, a vertical movable base 70 for vertically shifting the projection lens 31, and a horizontal drive actuator 61 and a vertical drive actuator 71 for driving these bases 60, 70. Driving forces of these actuators 61, 71 are transmitted via respective lead screws 671 (751) and a pair of lead nuts 672, 672b (752, 752b) meshing with the lead screws to shift the bases 60, 70. A pair of lead nuts are installed with elastic bodies 672c (752c) applying a pressure such that the pair of lead nuts recede from or approach each other in the axial direction of the lead screw. In this configuration, a delay in the shift operation is removed by reducing a backlash in the lens movement.Type: ApplicationFiled: May 19, 2015Publication date: May 24, 2018Inventors: Eiki ISHIJIMA, Shinro INUI, Hiroshi OSHIMA, Nobuki MATSUI
-
Patent number: 9560329Abstract: The performance and the functionality of a projection-type video display device are improved to expand an application range of the projection-type video display device. The projection-type display device has two optical engines, increases the luminance of a display image, achieves a pseudo high resolution, or displays a three-dimensional image and a wide screen. The two optical engines have an adjusting mechanism to adjust a position on which an image is displayed. The adjusting mechanism has a plurality of mechanisms which adjust relative three-dimensional axis-direction positions between the two optical engines and inclinations of the optical engines with respect to axes. For example, in consideration of cross actions between adjustments, the plurality of adjusting mechanisms are allocated to the optical engines. As a result, the adjustments can be easily performed.Type: GrantFiled: October 30, 2012Date of Patent: January 31, 2017Assignee: HITACHI MAXELL, LTD.Inventors: Shinro Inui, Kazuomi Kaneko, Nobuki Matsui
-
Patent number: 9459517Abstract: A projection image display apparatus which performs an operation for attaching and detaching a projection lens by one action with a simple mechanism is provided. The projection image display apparatus includes an optical engine which irradiates a display element with light emitted from a light source to form an image, a projection lens which enlarges and projects the image emitted from the optical engine, a lens shift mechanism for adjusting a position of an image to be projected onto a screen, a lens attachment unit for attaching the projection lens to the lens shift mechanism, and a first plate for attaching the projection lens to the lens attachment unit to achieve a locked state, and the attachment of the projection lens to the lens attachment unit and the achievement of the locked state are performed by only rotation of the first plate in a first direction.Type: GrantFiled: November 11, 2011Date of Patent: October 4, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Nobuki Matsui, Shinro Inui, Chohei Ono, Kazuomi Kaneko, Masayuki Fukui
-
Patent number: 9335618Abstract: A projection image display apparatus capable of maintaining the positional accuracy of an integrator optical system even when subjected to an external force is provided.Type: GrantFiled: November 7, 2011Date of Patent: May 10, 2016Assignee: HITACHI MAXELL, LTD.Inventors: Kazumasa Ueoka, Shinro Inui, Kei Adachi, Chohei Ono, Takafumi Ishizu, Kazuo Shikita
-
Patent number: 9185371Abstract: A liquid crystal projector which prevents deterioration of the aluminum grid inorganic polarizing plate due to dust in the cooling air for cooling the liquid crystal panel module. A shade member along the surface of the inorganic polarizing plate prevents the surface from being directly hit by the cooling wind and thus prevents dust from attaching to the surface of the plate.Type: GrantFiled: February 9, 2011Date of Patent: November 10, 2015Assignee: HITACHI MAXELL, LTD.Inventors: Shinro Inui, Nobuki Matsui
-
Patent number: 9148635Abstract: Provided is a projection video display device with which precision of location of each component of the optical engine and the projection optical assembly is maintained and display video quality not impaired even if exterior force is sustained. A projection video display device comprises an optical engine (2) which projects light which is emitted from a light source (21) upon a liquid-crystal panel (231) and forms a video, and a projection optical assembly (3) which projects an enlargement of the video which is emitted from the optical engine (2). The projection optical assembly (3) and the optical engine (2) are configured to be anchored to a common base (4) which retains these in an integrated manner, with the common base (4) being attached to the casing of the device.Type: GrantFiled: October 13, 2011Date of Patent: September 29, 2015Assignee: HITACHI MAXELL, LTD.Inventors: Kazumasa Ueoka, Shinro Inui, Chohei Ono, Kazuomi Kaneko
-
Publication number: 20150271458Abstract: The performance and the functionality of a projection-type video display device are improved to expand an application range of the projection-type video display device. The projection-type display device has two optical engines, increases the luminance of a display image, achieves a pseudo high resolution, or displays a three-dimensional image and a wide screen. The two optical engines have an adjusting mechanism to adjust a position on which an image is displayed. The adjusting mechanism has a plurality of mechanisms which adjust relative three-dimensional axis-direction positions between the two optical engines and inclinations of the optical engines with respect to axes. For example, in consideration of cross actions between adjustments, the plurality of adjusting mechanisms are allocated to the optical engines. As a result, the adjustments can be easily performed.Type: ApplicationFiled: October 30, 2012Publication date: September 24, 2015Applicant: HITACHI MAXELL, LTD.Inventors: Shinro Inui, Kazuomi Kaneko, Nobuki Matsui
-
Patent number: 8891026Abstract: Provided is a projection video display device with which a sliding load is minimized while maintaining an adjustment precision in a lens shift mechanism. A lens shift mechanism (32) which moves a projection lens in a direction which is orthogonal to the optical axis of projected light has a configuration in which mobile bases (50, 60), which retain the projection lens, slide using a shaft (52), which is attached on a fixed member (4) side, as a guide member. A further aspect of the configuration is that a correction screw is inserted from the rear face side of the fixed member (4) to make contact with the shaft (52), and optical axis tilt and misalignment of the projection lens are corrected by adjusting the degree of insertion of the correction screw.Type: GrantFiled: October 13, 2011Date of Patent: November 18, 2014Assignee: Hitachi Maxell, Ltd.Inventors: Chohei Ono, Shinro Inui, Masayuki Fukui, Kazuomi Kaneko, Nobuki Matsui
-
Publication number: 20140313492Abstract: A projection image display apparatus which performs an operation for attaching and detaching a projection lens by one action with a simple mechanism is provided. The projection image display apparatus includes an optical engine which irradiates a display element with light emitted from a light source to form an image, a projection lens which enlarges and projects the image emitted from the optical engine, a lens shift mechanism for adjusting a position of an image to be projected onto a screen, a lens attachment unit for attaching the projection lens to the lens shift mechanism, and a first plate for attaching the projection lens to the lens attachment unit to achieve a locked state, and the attachment of the projection lens to the lens attachment unit and the achievement of the locked state are performed by only rotation of the first plate in a first direction.Type: ApplicationFiled: November 11, 2011Publication date: October 23, 2014Inventors: Nobuki Matsui, Shinro Inui, Chohei Ono, Kazuomi Kaneko, Masayuki Fukui
-
Publication number: 20140300829Abstract: Provided is a projection video display device with which precision of location of each component of the optical engine and the projection optical assembly is maintained and display video quality not impaired even if exterior force is sustained. A projection video display device comprises an optical engine (2) which projects light which is emitted from a light source (21) upon a liquid-crystal panel (231) and forms a video, and a projection optical assembly (3) which projects an enlargement of the video which is emitted from the optical engine (2). The projection optical assembly (3) and the optical engine (2) are configured to be anchored to a common base (4) which retains these in an integrated manner, with the common base (4) being attached to the casing of the device.Type: ApplicationFiled: October 13, 2011Publication date: October 9, 2014Inventors: Kazumasa Ueoka, Shinro Inui, Chohei Ono, Kazuomi Kaneko
-
Publication number: 20140253818Abstract: Provided is a projection video display device with which a sliding load is minimized while maintaining an adjustment precision in a lens shift mechanism. A lens shift mechanism (32) which moves a projection lens in a direction which is orthogonal to the optical axis of projected light has a configuration in which mobile bases (50, 60), which retain the projection lens, slide using a shaft (52), which is attached on a fixed member (4) side, as a guide member. A further aspect of the configuration is that a correction screw is inserted from the rear face side of the fixed member (4) to make contact with the shaft (52), and optical axis tilt and misalignment of the projection lens are corrected by adjusting the degree of insertion of the correction screw.Type: ApplicationFiled: October 13, 2011Publication date: September 11, 2014Applicant: Hitachi Maxell, Ltd.Inventors: Chohei Ono, Shinro Inui, Masayuki Fukui, Kazuomi Kaneko, Nobuki Matsui
-
Patent number: D728000Type: GrantFiled: January 16, 2014Date of Patent: April 28, 2015Assignee: Hitachi Maxell, Ltd.Inventors: Shinro Inui, Hiroshi Ohshima, Nobuki Matsui
-
Patent number: D790621Type: GrantFiled: February 25, 2016Date of Patent: June 27, 2017Assignee: Hitachi Maxell, Ltd.Inventors: Eiki Ishijima, Hiroshi Oshima, Shinro Inui