公开(公告)号：JP2002116390A

公开(公告)日：2002-04-19

申请号：JP2000307761

申请日：2000-10-06

Applicant: SEIKO EPSON CORP

Inventor： NOJIMA SHIGEO

IPC: G02B26/08 ,  C23C14/10 ,  C23C14/14 ,  C23C14/34 ,  C23C16/40 ,  C23C16/50

Abstract: PROBLEM TO BE SOLVED: To provide a method for manufacturing an optical switching device having an optical element equipped with a V-shaped prism. SOLUTION: A photoresist film 70 is patterned by using a gray mask 80 on a quartz (silicon oxide) substrate 98 used separately from a semiconductor substrate 20 on which an actuator 6 is formed. Further the quartz substrate is subjected to reactive etching to work a V-shaped prism layer 42. Then a silicon oxide supporting layer 41 is formed by plasma CVD to form an optical element layer 40. The actuator layer 6 on the semiconductor substrate 20 is bonded with the optical element layer 40 (prism layer 42). A switching device 55 all made of inorganic materials can be formed in the above processes, and thereby, an optical switching device having higher durability and reliability can be obtained.

公开(公告)号：JP2002090511A

公开(公告)日：2002-03-27

申请号：JP2000285947

申请日：2000-09-20

Applicant: SEIKO EPSON CORP

Inventor： YONEKUBO MASATOSHI ,  SEKI HIDEYA ,  NOJIMA SHIGEO ,  NAGATA MITSUO

IPC: G02B5/08 ,  G02B5/02 ,  G02F1/1335 ,  G09F9/00

Abstract: PROBLEM TO BE SOLVED: To provide a mass-producible reflective panel having higher light utilizing efficiency according to its use and a method for producing the panel. SOLUTION: Since a liquid crystal panel attached to a cell phone or the like does not require a so wide angle of a visual field, the reflective panel has a reflective surface 21 obtained by disposing plural fine reflective shapes 28 similar to a concave or convex basic shape 26 having different shapes in the vertical and horizontal directions at random without changing the vertical and horizontal directions. The reflective surface 21 turns light from both sides to the seeing direction of a front user and can enhance light utilizing efficiency. Such reflective panels each having the fine complex three-dimensional structure can be mass-produced by forming space distribution data, forming a gray mask on the basis of the data and using photolithography.

公开(公告)号：JP2001277197A

公开(公告)日：2001-10-09

申请号：JP2000095414

申请日：2000-03-30

Applicant: SEIKO EPSON CORP

Inventor： NOJIMA SHIGEO

IPC: G02B26/08 ,  B81C1/00

Abstract: PROBLEM TO BE SOLVED: To make manufacturable a photo-switching device of a high light utilization coefficient of such a structure that an optical element is driven by an actuator and the evanescent light leaking at the total reflection surface is extracted for making use of. SOLUTION: A slit mask 90 furnished with a slit 91 is vibrated and molecules, atoms or light is allowed to penetrate a working medium to irradiate a substrate 86, and a triangle having any arbitrary angle is formed. Thereby a photo- switching device can be manufactured with an angle having the highest utilization coefficient without causing the prism angle to be restricted to an angle assuring possibility to perform molding by anisotropic etching.

公开(公告)号：JP2000334943A

公开(公告)日：2000-12-05

申请号：JP15226299

申请日：1999-05-31

Applicant: SEIKO EPSON CORP

Inventor： NOJIMA SHIGEO ,  MAKIGAKI TOMOHIRO

IPC: B41J2/045 ,  B41J2/055

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet recorder in which the ink channels at the opposite ends of a row can have ink ejection characteristics equivalent to the ink drop ejection characteristics at other channels in a row by eliminating abnormal flexure occurring frequently in the diaphragms at the opposite ends of a row of ink channels. SOLUTION: The ink jet recorder has an ink jet head comprising nozzles, ink channels communicating with the nozzles, diaphragms 5 formed at a part of the channel, oscillation chambers 9 formed oppositely to the channel side of the diaphragm 5, and electrodes 17 formed oppositely to the diaphragm 5 on the bottom face of the oscillation chamber 9 wherein the diaphragm 5 is deformed electrostatically by applying an electric pulse between the diaphragm 5 and the electrode 17 and an ink drop is ejected from the nozzle. Sets of the nozzles, channels, diaphragms 15, oscillation chambers 9, and electrodes 17 are arranged in rows at a constant interval in the ink jet recorder and dummy sets of nozzles 4a, channels, diaphragms, oscillation chambers, and electrodes, noncontributive to ejection of ink drop, are arranged at the opposite end parts of the row.

公开(公告)号：JPH11277737A

公开(公告)日：1999-10-12

申请号：JP8116298

申请日：1998-03-27

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

Inventor： ISHIKAWA HIROYUKI ,  FUJII MASAHIRO ,  NOJIMA SHIGEO ,  MUKOYAMA KEIICHI

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

CPC classification number: B41J2/14314

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head having variation tolerance of ink ejection characteristic due to manufacturing variation in a main dimension in terms of the ink jet head which is of a type wherein ink drops are ejected by vibrating a vibration plate defining a bottom wall of an ink chamber by virtue of an electrostatic force.
SOLUTION: In order to eliminate variation of an ink ejection characteristic due to manufacturing variation in a main structure section of an ink jet head, a setting value Pws of a width of a pulse signal having a driving voltage is determined at a shipment stage of the ink jet head such that a maximum value of a quantity of ejected ink can be obtained. As a result, the variation in the ink ejection characteristic due to the difference between individuals can be reduced and printing quality can be maintained at constant level or higher.
COPYRIGHT: (C)1999,JPO

Abstract translation: 要解决的问题：提供一种喷墨头，其由于喷墨头的主要尺寸的制造变化而具有喷墨特性的变化公差，喷墨头是通过振动定义一个 由于静电力，墨水室的底壁。 解决方案：为了消除由于喷墨头的主结构部分中的制造变化而导致的喷墨特性的变化，在具有驱动电压的脉冲信号的宽度的设定值Pws在 喷墨头，使得可以获得喷射量的最大值。 结果，可以减少由于个体之间的差异引起的喷墨特性的变化，并且可以将打印质量保持在恒定水平或更高。

公开(公告)号：JPH10202884A

公开(公告)日：1998-08-04

申请号：JP1383497

申请日：1997-01-28

Applicant: SEIKO EPSON CORP

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

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

Abstract: PROBLEM TO BE SOLVED: To provide a drive control device capable of certainly compensating fluctuations of ink ejecting characteristics caused by the circumferential temp. in an ink jet head having a form vibrating the vibration plate prescribing the bottom wall of an ink chamber by electrostatic force to eject ink liquid droplets. SOLUTION: A drive control device 1 of an ink jet head 100 detects the head circumferential temp. by the thermistor 15 attached to a head substrate 8 and searches for the pulse width correction value dPw corresponding to the detected temp. to output the same from the temp. compensating corresponding table stored in an ROM and calculates the pulse width Pw of drive voltage according to a formula Pw=Pws+dPw on the basis of the pulse width correction value dPw and the preset pulse width initial value Pws of drive voltage. By adjusting the pulse width of the drive voltage corresponding to the circumferential temp., the temp. compensation of ink emitting characteristics can be certainly and simply controlled by simple constitution.

公开(公告)号：JPH09136413A

公开(公告)日：1997-05-27

申请号：JP29827395

申请日：1995-11-16

Applicant: SEIKO EPSON CORP

Inventor： FUJII MASAHIRO ,  ISHIKAWA HIROYUKI ,  NOJIMA SHIGEO ,  MARUYAMA HIROYUKI ,  YAMAJI ATSUSHI

IPC: B41J2/045 ,  B41J2/055

Abstract: PROBLEM TO BE SOLVED: To discharge ink drops from nozzles by deforming a diaphragm by means of static electricity in a manner not to generate residual electric charges between the diaphragm and an individual electrode. SOLUTION: A diaphragm (common electrode) of an ink-jet head is deformed in a first driving state wherein a voltage of a first polarity is applied between the diaphragm and an individual electrode, thereby to discharge ink drops from nozzles. Moreover, at least every time the ink drops are discharged once in the first driving state, the diaphragm is deformed in a second driving state wherein a voltage of a second polarity opposite to the first polarity is applied between the diaphragm and the individual electrode, thereby to discharge ink drops from the nozzles. According to this method, while the ink drops are discharged with the application of normal and opposite driving voltage pulses, residual electric charges generated between the diaphragm and the electrode can be removed at the same time.

公开(公告)号：JPH0957966A

公开(公告)日：1997-03-04

申请号：JP21929695

申请日：1995-08-28

Applicant: SEIKO EPSON CORP

Inventor： MARUYAMA HIROYUKI ,  FUJII MASAHIRO ,  NOJIMA SHIGEO

IPC: B41J2/175 ,  B41J2/045 ,  B41J2/055

Abstract: PROBLEM TO BE SOLVED: To provide an ink jet head and an ink jet recording apparatus that eliminates pixel depletion and makes it possible to increase apparent density, prevent offset and economize the use of ink, by making up a pixel of a plurality of dots. SOLUTION: An ink jet head has a substrate 1 comprising a plurality of ink supply passages each of which includes a nozzle 4 for ejecting ink, a pressure generating portion 6 communicating with the nozzle 4, and an ink supply passage 7 communicating with the pressure generating portion, and an ink supply portion 8 communicating with the plurality of ink passages. The substrate 1 is formed of an anisotropic crystalline material, and two or more of the nozzles 4 are provided by anisotropic etching.

公开(公告)号：JP2015049429A

公开(公告)日：2015-03-16

申请号：JP2013182061

申请日：2013-09-03

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

Inventor： EGAWA AKIRA ,  NOJIMA SHIGEO

IPC: G03B21/14 ,  H04N5/74

CPC classification number: G03B21/147 ,  G02B27/4205 ,  G03B21/2033 ,  G03B21/208 ,  G03B33/12

Abstract: 【課題】あおり投射した際に画像の照度ムラを低減できるプロジェクターを提供する。【解決手段】本発明のプロジェクターは、光源装置と、光源装置からの光を0次光と回折光とに変換する回折素子と、回折光を変調することによって画像光を形成する光変調装置と、光変調装置から入射する画像光の光軸に対して傾いた主光線を有する投射光を射出する投射光学系と、を備え、光軸と投射光の主光線とを含む面に直交し、かつ、光軸を含む面を基準面としたとき、0次光の光軸と回折光の主光線とを含む面が基準面と交差していることを特徴とする。【選択図】図3

Abstract translation: 要解决的问题：提供即使当图像以倾斜角投影时也能够减少图像的不均匀照度的投影仪。解决方案：本发明的投影仪包括光源装置，衍射元件，其将来自 光源装置成为零级光和衍射光，调制衍射光以形成图像光的光调制装置，以及投影光学系统，其投影具有相对于图像光的光轴倾斜的主光线的投射光 从光调制装置发出的事件。 当垂直于包括光轴和包括光轴的投影光的主光线的平面的平面是参考平面时，包括零级光的光轴和衍射光的主光线的平面相交 参考平面。

公开(公告)号：JP2012128121A

公开(公告)日：2012-07-05

申请号：JP2010278581

申请日：2010-12-14

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 ,  F21Y101/02 ,  G02F1/13 ,  G02F1/1335 ,  H01S3/00

Abstract: PROBLEM TO BE SOLVED: To provide an illumination device capable of suppressing a decrease in light emission efficiency of a fluorescent layer even when an output of a light source device for excitation is increased.SOLUTION: An illumination device 101 according to the present invention comprises: 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; and a light converging optical system 20 for emitting the first light beam La and the second light beam Lb to the fluorescent layer 42 in such a manner that at least a part of the first light beam La and at least a part of the second light beam Lb overlap with each other on the fluorescent layer 42, and that a first high light intensity region having the highest light intensity in a beam spot of the first light beam La formed on the fluorescent layer 42 and a second high light intensity region having the highest light intensity in a beam spot of the second light beam Lb formed on the fluorescent layer 42 are disposed apart from each other on the fluorescent layer 42.

Abstract translation: 要解决的问题：即使当激励光源装置的输出增加时，提供能够抑制荧光层的发光效率降低的照明装置。 解决方案：根据本发明的照明装置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; 由第一光束La和第二光束Lb激发的荧光层42; 以及用于将第一光束La和第二光束Lb发射到荧光层42的聚光光学系统20，使得第一光束La的至少一部分和第二光束的至少一部分 Lb在荧光层42上彼此重叠，并且在荧光层42上形成的第一光束La的束斑中具有最高光强度的第一高光强度区域和具有最高的第二高光强度区域 形成在荧光层42上的第二光束Lb的光斑中的光强度在荧光层42上彼此分开设置。（C）2012，JPO和INPIT