Rear projection type display device
    21.
    发明专利
    Rear projection type display device 有权
    后投影类型显示设备

    公开(公告)号:JP2008033041A

    公开(公告)日:2008-02-14

    申请号:JP2006206733

    申请日:2006-07-28

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To provide a rear projection type image device capable of making a screen larger and thinning the device by using a simple device composition and capable of displaying an undeformed high-quality image on the screen.
    SOLUTION: An optical element in the rear projection type image device is provided with: a coupling lens 23; a cylindrical lens 24; a photodetector 25; a beam splitter 27 having a reflection surface 26; a signal operation processing part 28; and an optical element driving part 29, whereby laser beams are focused on the screen 5.
    COPYRIGHT: (C)2008,JPO&INPIT

    Abstract translation: 要解决的问题:提供一种能够通过使用简单的装置组合使得屏幕变大和变薄的背投影型图像装置,并且能够在屏幕上显示未变形的高质量图像。 解决方案:背投影型图像装置中的光学元件设置有:耦合透镜23; 柱面透镜24; 光电检测器25; 具有反射表面26的分束器27; 信号操作处理部28; 和光学元件驱动部分29,由此激光束聚焦在屏幕5上。版权所有(C)2008,JPO&INPIT

    IMAGE PICKUP DEVICE AND ITS MANUFACTURING METHOD

    公开(公告)号:JP2002027311A

    公开(公告)日:2002-01-25

    申请号:JP2000203921

    申请日:2000-07-05

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To quickly deal without increasing the cost even in the case of chang ing the design of an optical system. SOLUTION: An image pickup device comprises a lens barrel 2 with a lens 1 therein, a board 10 for mounting an imaging element 11, and a holder 3 for mounting the barrel 2 on the board 10. The device further comprises a distance setter 12 for setting the distance of the lens 1 to the element 11 between the board 10 and the element 11.

    IMAGE PICKUP DEVICE
    23.
    发明专利

    公开(公告)号:JP2000122192A

    公开(公告)日:2000-04-28

    申请号:JP29771798

    申请日:1998-10-20

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To obtain the outer peripheral image of a subject in a short time. SOLUTION: This image pickup device is equipped with an image pickup part 1 forming the image of the subject (h) and converting it to an electrical signal, and a reflection mirror M elliptically arranged on the periphery of the subject (h) and reflecting the image of the subject (h) to the image pickup part 1, and a direct image (front image) from the subject (h) and a reflected image (side surface image) reflected by the reflection mirror M are simultaneously fetched in the image pickup part 1.

    IMAGE SENSING APPARATUS AND ITS MANUFACTURE

    公开(公告)号:JP2000040813A

    公开(公告)日:2000-02-08

    申请号:JP20933398

    申请日:1998-07-24

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To enable easy positioning with high precision, in position relations between an image sensing element and an imagery optical element and between the image sensing element and a phase type low-pass filter. SOLUTION: In an image sensing apparatus constituted of an image sensing element 3 an imagery optical element 6 and an optical low-pass filter 10 arranged between the image sensing element 3 and the imagery optical element 6 the imagery optical element 6 and the optical low-pass filter 10 are held with a specified position relation by a holder 5. The holder 5 is so fixed on a package that position relation of a reference surface of the imagery optical element 6 to an image sensing surface of the imaging element 3 satisfies a specified relation.

    IMAGE PICKUP DEVICE
    25.
    发明专利

    公开(公告)号:JPH11266000A

    公开(公告)日:1999-09-28

    申请号:JP6596698

    申请日:1998-03-17

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To permit shortening of a length of an image pickup device including a lens and an image pickup element and further permit reduction of a positional error between the lens and image pickup element. SOLUTION: A refractive index distribution lens 1 having a single refractive index having a refractive index distribution nearly proportional to a square of a distance from an optical axis 2 in a sectional plane perpendicular to the optical axis 2 is provided as an imaging lens in the vicinity of an image pickup plane 5 of an image pickup element 4. More specifically, a positional relationship between the image pickup element and lens is fixed with an adhesive such as, e.g. organic solvent 4. And an infrared ray cutting filter 6 is formed in a light incident plane of the lens 1.

    OPTICAL PICKUP AND OPTICAL DISK DEVICE

    公开(公告)号:JPH10149561A

    公开(公告)日:1998-06-02

    申请号:JP30482496

    申请日:1996-11-15

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To simultaneously reproduce two signal recorded surfaces of a double layer optical disk by simple constitution using an integrated type light receiving/ emitting device. SOLUTION: This optical pickup is provided with a light convergent means converging laser beam from the light receiving/emitting device 21 on the recorded surface of the optical disk and introducing return light from the recorded surface of the optical disk to the light receiving/emitting device 21, and a polarized light separating means 24 arranged in an optical path between the light receiving/emitting device 21 and the optical disk, acting as a lens for a first light component between light beams from the light receiving/emitting device 21, transmitting a second light component through as it is and respectively converging them on two signal recorded surfaces 35a, 35b of the double layer optical disk 35 through the light convergent means.

    OPTICAL PICKUP
    27.
    发明专利

    公开(公告)号:JPH103690A

    公开(公告)日:1998-01-06

    申请号:JP17579996

    申请日:1996-06-14

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PROBLEM TO BE SOLVED: To reproduce correctly even optical disks with different thickness of substrates by making pass through one side component between normal light or abnormal light related to an optical axis of a polarizing hologram element between separated light beams. SOLUTION: A collimate lens 15 converts the light beam transmitting through a beam splitter and facing to the optical disk D to the parallel light beams. The polarizing hologram element 16 is constituted so that a concentric grating is formed on a surface of a lithium niobate substrate 16a by a proton exchange method, and a dielectric film is formed on the grating, and prescribed polarization characteristic and lens characteristic are given. The element 16 acts so that e.g. a normal light component between the light beam 16d entering from a semiconductor laser element 11, transmitting through the beam splitter 12 and incident on the element 16 is transmitted through, and an abnormal light component is diffracted and converged related to the optical axis 16c.

    OPTICAL PICKUP AND OPTICAL ELEMENT
    28.
    发明专利

    公开(公告)号:JPH097217A

    公开(公告)日:1997-01-10

    申请号:JP17540595

    申请日:1995-06-19

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PURPOSE: To provide an optical pickup miniaturized in constitution with the cost reduced. CONSTITUTION: This optical element consists of a 1st diffraction element 30 for splitting incident light of linear polarization into 1st and 2nd components which are orthogonal to each other and a 2nd diffraction element 31 for splitting the light into 3rd and 4th components which are nearly transmitted through 1st order diffracted light of the 1st component emitted from the 1st diffraction element and are also orthogonal to 0-th order diffracted light of the 2nd component emitted from the 1st diffraction element. Then, the 1st diffraction element and the 2nd diffraction element constitute the optical element 25, so as to be polarization holograms disposed on both opposite sides of a substrate 30a of a hologram element respectively.

    OPTICAL PICKUP
    29.
    发明专利

    公开(公告)号:JPH07210885A

    公开(公告)日:1995-08-11

    申请号:JP2323094

    申请日:1994-01-24

    Applicant: SONY CORP

    Inventor: IWASAKI MASANORI

    Abstract: PURPOSE:To provide an optical pickup capable of making structure small and thin with simple constitution. CONSTITUTION:This optical pickup converges a light beam from a light source on the surface of an optical disk through an objective lens and detects, light beam reflected from the surface of an optical disk. The optical pickup is composed so that the objective lens 11 is moved in the tracking direction perpendicular to the optical axis by means of a first ultrasonic driving means 16 and moved in the focusing direction along the optical axis by means of a second ultrasonic driving means 23.

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