公开(公告)号：JPH11286109A

公开(公告)日：1999-10-19

申请号：JP8860698

申请日：1998-04-01

Applicant: SEIKO EPSON CORP

Inventor： MAKIGAKI TOMOHIRO ,  NOJIMA SHIGEO ,  FUJII MASAHIRO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/12 ,  B41J2/14

Abstract: PROBLEM TO BE SOLVED: To provide a driving/controlling device capable of surely compensating fluctuation of an ink ejection characteristic due to variation of an air pressure in terms of an ink jet head which is of a type of ejecting ink drops by vibrating a vibration plate defining a bottom wall of an ink chamber by virtue of an electrostatic force. SOLUTION: A driving/controlling device 1 of an ink jet head 100 detects an air pressure at the circumference of the head by a pressure sensor 15 attached to a head substrate 8 and corrects a pulse width of a driving voltage to be an optimum value in accordance with the detected air pressure. As the pulse width of the driving voltage is controlled in accordance with the air pressure, it is possible to always obtain an optimum ink ejection characteristic even when the using environment is changed.

公开(公告)号：JPH11157060A

公开(公告)日：1999-06-15

申请号：JP32481297

申请日：1997-11-26

Applicant: SEIKO EPSON CORP

Inventor： ISHIKAWA HIROYUKI ,  TAKEKOSHI TARO ,  FUJII MASAHIRO ,  NOJIMA SHIGEO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/14

Abstract: PROBLEM TO BE SOLVED: To prevent foams from remaining in a pressure chamber when ink is filled and a nozzle surface is cleaned or the like. SOLUTION: An ink jet head is constituted of a nozzle hole 11 for jetting ink drops, a pressure chamber 5 for applying pressure to ink, a connecting section flow path 12 for connecting the nozzle hole 11 with the pressure chamber 5 and a pressure generating means for generating jet pressure in the pressure chamber 5. The distance L from a top 52 of a wall face 51 of the pressure chamber 5 on the opposite side of an ink jet line 7 in the longitudinal direction of the pressure chamber 5 to the connecting section flow path 12 on the section almost vertical to an ink flow line 14 in the vicinity of a connecting section of the connecting section flow path 12 with the pressure chamber 5 is almost 50 μm or shorter.

公开(公告)号：JPH11115179A

公开(公告)日：1999-04-27

申请号：JP27726897

申请日：1997-10-09

Applicant: SEIKO EPSON CORP

Inventor： FUJII MASAHIRO ,  ISHIKAWA HIROYUKI ,  NOJIMA SHIGEO ,  TAKEKOSHI TARO

IPC: B41J2/045 ,  B41J2/055 ,  B41J2/14

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head which need not be enlarged in size and is free from a pressure interference between ink nozzles and also an ink jet head which has a pressure fluctuation damping part, for eliminating the pressure interference with desired characteristics, which can be simply formed. SOLUTION: On this ink jet head 1, an ink reservior 10, an ink feed opening 8 and a pressure chamber 6 are formed sectioned from each other, in such a state that these components are arranged in planar direction H, between a nozzle plate 2 and a cavity plate 3.0 of a partition wall part 10a which forms the ink recervior 10 by sectioning, a first partition wall part 10b has a pressure fluctuation damping part 22 formed for interfering with the pressure fluctuation of the ink reservior 10. Under this construction, the ink jet heat need no longer be enlarged in size and a pressure interference between ink nozzles 21 can be eliminated. In addition, it is possible to simply form the pressure fluctuation damping part 22 with desired characteristics.

公开(公告)号：JPH10181011A

公开(公告)日：1998-07-07

申请号：JP34221696

申请日：1996-12-20

Applicant: SEIKO EPSON CORP

Inventor： FUJII MASAHIRO ,  TAKEKOSHI TARO ,  NOJIMA SHIGEO ,  ISHIKAWA HIROYUKI

IPC: B41J2/01 ,  B41J2/045 ,  B41J2/055 ,  B41J2/14

Abstract: PROBLEM TO BE SOLVED: To always discharge a normal ink by a method wherein a passage substrate is grounded at a GND electric potential, a pulse voltage to become + electric potential is applied to an individual electrode from the GND electric potential to transform a diaphragm, and the ink is discharged from a nozzle. SOLUTION: On the surface of a P type silicon substrate 2, a B dope layer 41 in which boron is diffused in 1×10E19 pieces/cm or more, is formed, and an electric energy is applied to an individual electrode 31 from an ink jet head driver circuit 220 which is constituted of a CMOSIC. When Dn is made H in order to discharge an ink, transistors 141, 142 are turned on, and when a pulse V3 is applied, an electric potential of V3 is output to a SEGn terminal. At this time, the electric potential of a common electrode 17, i.e., a diaphragm, is always GND, and for this reason, the diaphragm 5 is negatively charged, and the individual electrode 31 is positively charged, and the diaphragm 5 is drawn by a static electric power and is driven. When Dn is L, the transistors 141, 142 are turned off, and a transistor 143 is turned on, and the GND electric potential is output to the SEGn terminal, and the diaphragm 5 is not driven.

公开(公告)号：JP2013162021A

公开(公告)日：2013-08-19

申请号：JP2012024056

申请日：2012-02-07

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： KASHIWAGI AKIHIRO ,  NOJIMA SHIGEO ,  MIYAMAE AKIRA ,  EGAWA AKIRA

IPC: H01S5/022 ,  G03B21/14 ,  H05B33/12

CPC classification number: F21V9/16 ,  G03B21/204 ,  H04N9/3111 ,  H04N9/3158 ,  H05B33/14

Abstract: PROBLEM TO BE SOLVED: To provide a wavelength conversion element capable of obtaining high emission efficiency, a light source device and a projector.SOLUTION: A wavelength conversion element comprises: a substrate 31; and a phosphor layer 32 provided on the substrate 31. A volume concentration of the phosphor in the phosphor layer 32 is more than 15vol%.

Abstract translation: 要解决的问题：提供能够获得高发射效率的波长转换元件，光源装置和投影仪。解决方案：波长转换元件包括：基板31; 以及设置在基板31上的荧光体层32.荧光体层32中的荧光体的体积浓度大于15体积％。

公开(公告)号：JP2012103615A

公开(公告)日：2012-05-31

申请号：JP2010254026

申请日：2010-11-12

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： NOJIMA SHIGEO ,  MIYAMAE AKIRA ,  SAKATA HIDEFUMI ,  HASHIMOTO SATOSHI

IPC: G03B21/14 ,  F21S2/00 ,  F21V9/16 ,  F21Y101/02 ,  G03B21/00

Abstract: PROBLEM TO BE SOLVED: To provide an illumination device capable of preventing lowering of luminous efficiency of a fluorescent layer even when output of an excitation light source device is enhanced.SOLUTION: An illumination device 101 of the invention includes a first light source device 10a for emitting a first light beam La, a second light source device 10b for emitting a second light beam Lb, a fluorescent layer 42 excited by the first light beam La and the second light beam Lb, a light diffusion member 26a disposed on an optical path of the first light beam La between the first light source device 10a and the fluorescent layer 42 to diffuse the light beam La, and a light collection optical system 21 for projecting the first light beam La and the second light beam Lb onto the fluorescent layer 42 so that at least a part of the first light beam La and at least a part of the second light beam Lb are overlapped with each other on the fluorescent layer 42.

Abstract translation: 要解决的问题：即使提高激发光源装置的输出，也能够提供能够防止降低荧光层的发光效率的照明装置。 解决方案：本发明的照明装置101包括用于发射第一光束La的第一光源装置10a，用于发射第二光束Lb的第二光源装置10b，由第一光激发的荧光层42 光束La和第二光束Lb，设置在第一光源装置10a和荧光层42之间的第一光束La的光路上以扩散光束La的光扩散部件26a，以及光收集光学系统 21，用于将第一光束La和第二光束Lb投射到荧光层42上，使得第一光束La的至少一部分和第二光束Lb的至少一部分在荧光体上彼此重叠 第42层。版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP2010197955A

公开(公告)日：2010-09-09

申请号：JP2009045773

申请日：2009-02-27

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： NOJIMA SHIGEO

IPC: G09G5/00 ,  G03B21/00 ,  G09G3/20 ,  G09G3/34 ,  H04N5/66 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide a display, capable of satisfactorily displaying contents with a large total information quantity. SOLUTION: The display 1 includes a projector 2; image display terminals 12a-12f arranged in a display area A1 of the projector 2; and a position detection unit which detects positions of the image display terminals 12a-12d within the display area A1. The projector 2 displays information for images P2 displayed by the image display terminals 12a-12d in positions according to the detection results by the position detection unit. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供能够以大的总信息量令人满意地显示内容的显示器。

解决方案：显示器1包括投影仪2; 布置在投影仪2的显示区域A1中的图像显示终端12a-12f; 以及位置检测单元，其检测显示区域A1内的图像显示终端12a-12d的位置。 投影仪2根据位置检测单元的检测结果显示由图像显示终端12a-12d显示的图像P2的信息。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2010086000A

公开(公告)日：2010-04-15

申请号：JP2010000147

申请日：2010-01-04

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： NOJIMA SHIGEO ,  YONEKUBO MASATOSHI ,  TAKEDA TAKASHI ,  YAMAZAKI TETSURO

IPC: G02B26/10 ,  G03B21/00

Abstract: PROBLEM TO BE SOLVED: To prevent a high intensity laser beam from accidentally entering an eye of an observer.
SOLUTION: A projector of rear-projection type includes a light source 101 that outputs a laser beam and a scanner 106 that scans a screen 120 with the laser beam. At least one optical member (lens optical system 103, scanner 106, reflection mirror 109 and screen 120 or the like) located in an optical path of the laser beam is configured so as to be broken or altered in quality and to prevent or discourage the beam with energy exceeding the accessible emission limit from being output from the screen 120, when a laser beam with energy exceeds an accessible emission limit due to failure of the light source 101 or the scanner 106.
COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：为了防止高强度激光束意外地进入观察者的眼睛。 解决方案：背投型投影机包括输出激光束的光源101和用激光束扫描屏幕120的扫描器106。 位于激光束的光路中的至少一个光学构件（透镜光学系统103，扫描器106，反射镜109和屏幕120等）被配置为在质量上被破坏或改变，并且防止或阻止 当具有能量的激光束由于光源101或扫描仪106的故障而超过可接近的发射极限时，能量超过可接近的发射极限的光束从屏幕120输出。（C）2010， JPO＆INPIT

公开(公告)号：JP2009229596A

公开(公告)日：2009-10-08

申请号：JP2008072433

申请日：2008-03-19

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： NOJIMA SHIGEO

IPC: G02B27/18 ,  G02B26/08 ,  G02B26/10 ,  G03B21/00 ,  G09G3/02 ,  H01S3/10 ,  H04N1/113 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide an image display apparatus which has high light utility efficiency and reliably suppresses speckle noise. SOLUTION: The image display apparatus includes: light sources 10R, 10G and 10B which emit laser light; a scanning means 30 which scans the laser light emitted from the light sources 10R, 10G and 10B toward a face to be projected 50; and a wavelength varying means 40 which varies the output wavelength of the laser light emitted from the light sources 10R, 10G and 10B as time elapses. COPYRIGHT: (C)2010,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有高光效率并可靠地抑制斑点噪声的图像显示装置。 解决方案：图像显示装置包括：发射激光的光源10R，10G和10B; 扫描装置30，其将从光源10R，10G和10B发射的激光朝向待投影的面50扫描; 以及波长变化装置40，其随着时间的流逝改变从光源10R，10G和10B发射的激光的输出波长。 版权所有（C）2010，JPO＆INPIT

公开(公告)号：JP2009139429A

公开(公告)日：2009-06-25

申请号：JP2007312643

申请日：2007-12-03

Applicant: Seiko Epson Corp ,  セイコーエプソン株式会社

Inventor： NOJIMA SHIGEO ,  IKEGAMI TOMIO

IPC: G02B26/10 ,  G02B26/12 ,  G02B27/18 ,  G03B21/00 ,  H04N5/74

CPC classification number: H04N9/3129

Abstract: PROBLEM TO BE SOLVED: To provide a scanning image display device having excellent dynamic image display characteristics by displaying images of high resolution in high quality, and to provide a scanning image display system. SOLUTION: The scanning image display device has a plurality of light sources 20, and displays the images by scanning light emitted from the plurality of the light sources 20 toward a face to be projected 50 divided into a plurality of sub-illumination regions L1-L32 in a first direction and in a second direction substantially orthogonal to the first direction. One direction out of the first and second directions is a high speed scanning direction scanning light at a high speed as compared with the other direction, and the other direction is a low speed scanning direction. The plurality of the sub-illumination regions L1-L32 are arranged in the low speed scanning direction, and the low speed scanning direction of light scanned in two adjacent sub-illumination regions L1-L32 is in mutually opposite directions in the face to be projected 50. COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：通过以高质量显示高分辨率的图像来提供具有优异的动态图像显示特性的扫描图像显示装置，并提供扫描图像显示系统。 解决方案：扫描图像显示装置具有多个光源20，并且通过将从多个光源20发射的光朝向被分割成多个子照明区域的待投影面50进行扫描来显示图像 L1-L32沿着与第一方向大致正交的第一方向和第二方向。 第一和第二方向之外的一个方向是与其他方向相比高速扫描方向的扫描光，另一个方向是低速扫描方向。 多个副照明区域L1-L32配置在低速扫描方向，并且在两个相邻的副照明区域L1-L32中扫描的光的低速扫描方向在投影面中处于相互相反的方向 50.版权所有（C）2009，JPO＆INPIT