公开(公告)号：JPS6443702A

公开(公告)日：1989-02-16

申请号：JP20025387

申请日：1987-08-11

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU ,  SONEHARA TOMIO ,  INOUE KUNIHIRO ,  KOMATSU HIROSHI ,  TERAISHI KATSUHIRO

IPC: G01B9/02 ,  H01S5/00

Abstract: PURPOSE:To obtain a miniaturized, accurate interferometer by using what is called a surface light emission type semiconductor laser as a light source. CONSTITUTION:The semiconductor laser 10 uses parts of thin films 21 and 22 formed on the surface of a substrate 24 where the laser 10 is formed as an active area 20 and light 23 is emitted from the area. The length L of a resonator constituting the laser is reducible to several mum, the oscillation spectrum of possible oscillation wavelengths is single, and a jump among the possible oscillation wavelengths, i.e. mode hopping is not caused even in case of temperature variation, etc. Therefore, the surface light emission type semiconductor laser like this is used as the light source to enable the light source of 5mm in diameter and about 5mm in height, so the interferometer is reduced in size on the whole and the semiconductor laser has no wavelength jump regardless of temperature variation, etc., so the high-accuracy interferometer can be constituted.

公开(公告)号：JPS63250607A

公开(公告)日：1988-10-18

申请号：JP8632587

申请日：1987-04-08

Applicant: SEIKO EPSON CORP

Inventor： NOBUNAGA HISASHI ,  YOKOYAMA OSAMU ,  UCHIYAMA SHOICHI

IPC: G02B6/122 ,  G02B6/12 ,  G02B6/13

Abstract: PURPOSE:To facilitate production and to improve mass productivity as well as reliability and practicability by forming the film of a light guide on a mold having the shape of a light guide element and adhering the light guide and substrate. CONSTITUTION:The mold 10 having the shape of the light guide element is prepd. The light guide 11 is then formed on the mold 10. An adhesive agent 12 is coated on the light guide 11 and the substrate 13 is placed on the adhesive agent 12 and is adhered thereto. Thermosetting or photosetting resins, etc., which have the refractive index smaller than the refractive index of the light guide material and act to securely adhere the substrate 13 and the light guide 11 are adopted for the adhesive agent 12. The mold 10 and the light guide 11 are finally separated from the boundary therebetween, by which the light guide element is produced. A treatment with a release agent, etc., are carried out at need according to the combinations of the light guide materials and molds in this case.

公开(公告)号：JPS63173239A

公开(公告)日：1988-07-16

申请号：JP449187

申请日：1987-01-12

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU

IPC: H01L31/10 ,  G11B7/135 ,  H01L27/14 ,  H01L31/12

Abstract: PURPOSE:To prevent the generation of return light to a semiconductor laser, by leading emitted light from a light emitting element being a light source, into an optical waveguide layer by a grating structure formed on the optical waveguide layer. CONSTITUTION:A light beam emitted from a semiconductor laser 104 goes into an optical waveguide layer 103 by a grating coupler 105, and propagated as a waveguide light 106. The waveguide light 106 is fetched to a space from the optical waveguide layer 103 by a grading coupler 107, and condensed to a recording medium surface 108. A reflected light from the recording medium 108 is led to an optical waveguide layer by a grating coupler 109, propagated, in a mode of waveguide light 110 and detected by a detector 111. A light absorbent 112 is embedded in a part of the optical waveguide layer 103 so that the waveguide light 106 is not superposed on the waveguide light 110. Plural pieces of detectors 111 are placed in a substrate, the waveguide light 110 which is reflected by the recording medium 108 and led to the optical waveguide layer 103 is distributed to each detector, and a reproducing signal and a servo-signal can be obtained.

公开(公告)号：JPS6292215A

公开(公告)日：1987-04-27

申请号：JP23256585

申请日：1985-10-18

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU

IPC: G11B5/31 ,  G11B5/39

Abstract: PURPOSE:To improve the reproduction efficiency of the titled head by forming a magneto-resistance effect thin film in the angle sighting from the side surface of one magnetic flux guide to the side surface of the other magnetic flux guide and allowing all the magnetic flux from a recording medium to flow to the thin film. CONSTITUTION:The magneto-resistance effect thin film 106, a conductor thin film 107, from the first to the fourth insulating films 103, 105, 108 and 109 and soft magnetic films 102, 104 and 110 are formed on the substrate 101 of the magnetic head. A part between the magnetic films 104 and 110 forming the magnetic path of the head is removed and the magneto-resistance effect thin film 106 is arranged in the removed part. By such constitution of the magnetic path, all the reproduced magnetic flux flowing from the upper magnetic film 110 to the lower magnetic film 104 or, conversely, the reproduced magnetic flux flowing from the lower magnetic film 104 to the upper magnetic film 110 are allowed to flow toward the magneto-resistance effect thin film 106. Moreover, all the magnetic flux of the magnetic medium from the leading end 114 of the magnetic head is allowed to flow to the magneto-resistance effect thin film 106 and the reproduction efficiency is improved.

公开(公告)号：JPS61240421A

公开(公告)日：1986-10-25

申请号：JP8293885

申请日：1985-04-18

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU

IPC: G11B5/31

Abstract: PURPOSE:To reduce the number of off-specification products due to poor insulation by forming an insulating film of the laminate of an inorg. insulating film and an org. insulating film. CONSTITUTION:The layer insulating film is composed of the first layer con sisting of a coil 105, SiO2 106 on the coil 105 and a resist layer 107 and the second layer consisting of a coil 108, SiO2 109 on the coil 108 and a resist layer 111. A gap 110 between the lower magnetic pole 103 and the upper magnetic pole 104 at the leading end part of a magnetic head is formed by the two layers of SiO2 106 and 109 and the length of the gap is equivalent to the sum of the thicknesses of the two layers of SiO2. Consequently, the exposition of the stepped part of the coil is prevented and the insulation is secured by the stepped part of the coil even when the org. film of a resist, etc., is thin.

公开(公告)号：JPS61175918A

公开(公告)日：1986-08-07

申请号：JP1585485

申请日：1985-01-30

Applicant: SEIKO EPSON CORP

Inventor： YOKOYAMA OSAMU

IPC: G11B5/31 ,  G11B5/17

Abstract: PURPOSE:To use a C0 amorphous magnetic thin film having a large specific resistance, as a magnetic pole, and also to obtain a thin film magnetic head using an electrode having a small electrode, by forming a terminal to which a lead wire is brought to bonding, by other conductor thin film than a magnetic thin film. CONSTITUTION:Electrodes 1-1, 1-2 consist of the same material quality as that of coils 1-3, 1-4, and also the electrode and the coil are continued. As for a thin film magnetic head, its coil consists of a double layer structure, and the first layer of the coil and the second layer of the coil consist of three turns and two turns, respectively, and are joined by a coil joining part 1-5. A material quality of the coil is an alloy of Al and Cu, and its thickness is 2mum. In order to solder a lead wire 1-7 to the electrodes 1-1, 1-2, a pad 1-6 on which Au, Ni and Cr is laminated is provided on the electrodes 1-1, 1-2.

公开(公告)号：JPS59127214A

公开(公告)日：1984-07-23

申请号：JP245283

申请日：1983-01-11

Applicant: Seiko Epson Corp

Inventor： KAWACHI AKIHIKO ,  HANDA TSUNEO ,  YOKOYAMA OSAMU ,  INAZUMI MITSUHIRO

IPC: G11B5/60 ,  G11B5/10 ,  G11B5/187 ,  G11B5/255

CPC classification number: G11B5/10

Abstract: PURPOSE:To improve the reliability of a magnetic head by the synergetic effect between hardness and lubricity by forming a thin carbon film which includes diamond structure on a medium sliding surface. CONSTITUTION:A gap part 3 is formed on the sliding surface 2 of an Mn-Zn ferrite core 1 on which a medium slides. Further, glass 4 is charged beside the gap part 3. The thin carbon film 5 which includes diamond structure and graphite structur is formed on the siding surface 2 to 1,000Angstrom by high-frquency plasma using gaseous methane. Further, ion gas is admitted into and ionized in the gaseous methane under a vacuum on the medium sliding surface 10 of a VTR head which has a ''Sendust''-made core 6 sandwiched between reinforcing glass cores 7 and 8 and has the sliding surface 10 on the side of the gap part 9 to form a carbon film 11 which includes diamond structure to 800Angstrom .

Abstract translation: 目的：通过在介质滑动面上形成包含金刚石结构的薄碳膜，通过硬度和润滑性之间的协同效应来提高磁头的可靠性。 构成：在介质滑动的Mn-Zn铁氧体磁芯1的滑动面2上形成间隙部3。 此外，在间隙部3的旁边填充有玻璃4.通过使用气态甲烷的高频等离子体，在壁面2〜1000A之间，形成有金刚石结构和石墨结构体的薄碳膜5。 此外，离子气体在气态甲烷中被真空吸附在VTR头的介质滑动表面10上，VTR头具有夹在强化玻璃芯7和8之间的“Sendust”制成的芯6并具有滑动 表面10在间隙部分9的一侧形成包括金刚石结构至800埃的碳膜11。

公开(公告)号：JPS59127210A

公开(公告)日：1984-07-23

申请号：JP245083

申请日：1983-01-11

Applicant: Seiko Epson Corp

Inventor： HANDA TSUNEO ,  YOKOYAMA OSAMU ,  INAZUMI MITSUHIRO ,  KAWACHI AKIHIKO

IPC: G11B5/127 ,  G11B5/265

CPC classification number: G11B5/2651

Abstract: PURPOSE:To eliminate mutual interference between coils and to simplify a manufacturing process by employing a main magnetic pole exciting type head as a recording and reproducing core and a ring type head as an erasing core, and arranging the recording and reproducing coil and erasing coil at distance. CONSTITUTION:The recording and reproducing core 21, erasing core 22, and nonmagnetic bases 23 and 24 are laminated; and the recording and reproducing core 21 uses the main magnetic pole exciting type head equipped with a thin layer 19 having high magnetic permeability and ferrite 25 and a coil is arranged at a position 32. The erasing core 22 uses the ring type head having the closed magnetic path of materials 26, 27, and 28 with high magnetic permeability and also having a gap 20, and a coil is arranged at a position 33. Thus, the recording and reproducing coil and erasing coil are at distance and the erasing core 22 has the closed magnetic path, so the leakage of magnetic flux from the cores is small and the influence upon the recording and reproducing core is ignored.

Abstract translation: 目的：为了消除线圈之间的相互干扰，并且通过使用主磁极励磁型磁头作为记录和再现磁芯以及环形磁头作为擦除磁芯来简化制造过程，并且将记录和再现线圈和擦除线圈布置在 距离。 构成：层叠记录和再现芯21，擦除芯22和非磁性基座23和24; 并且记录和再现核心21使用装备有具有高磁导率的薄层19和铁氧体25的主磁极激发型磁头，并且线圈被布置在位置32处。擦除芯22使用具有闭合的环形磁头 具有高磁导率并且还具有间隙20的材料26,27和28的磁路，并且线圈被布置在位置33处。因此，记录和再现线圈和擦除线圈处于距离处，并且擦除芯22具有 闭合的磁路，因此来自磁芯的磁通量的泄漏小，并且忽略对记录和再现磁芯的影响。

公开(公告)号：JP2014187026A

公开(公告)日：2014-10-02

申请号：JP2014093432

申请日：2014-04-30

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

Inventor： YOKOYAMA OSAMU

IPC: F21S2/00 ,  F21Y101/02 ,  F21Y105/00 ,  G03B21/00 ,  G03B21/14 ,  H04N5/64 ,  H04N5/74

Abstract: PROBLEM TO BE SOLVED: To provide an illumination device capable of acquiring brighter illumination light with a simple configuration, a projector and electronic equipment.SOLUTION: An illumination device 2 includes: a light guide body 7 in which areas of a light incident end surface 7a and a light emission end surface 7c facing with each other are relatively larger than an area of a display region in a liquid crystal display element 3; and a light source 8 which is arranged on the light incident end surface 7a side of the light guide body 7. At the light emission end surface 7c of the light guide body 7, a first opening is formed having an area substantially equal to the area of the display region of the liquid crystal display element 3, and a light emission side reflection member is provided in the region other than the first opening. On the light incident side of the light guide body, a light incident side reflection member is provided facing th light emission side reflection member in an optical axis direction from the light source 8.

Abstract translation: 要解决的问题：提供一种能够以简单的结构获得更亮的照明光的照明装置，投影仪和电子设备。照明装置2包括：导光体7，其中入射端面7a的区域 并且彼此面对的发光端面7c相对大于液晶显示元件3中的显示区域的面积; 以及配置在导光体7的光入射端面7a侧的光源8.在导光体7的发光端面7c处，形成有与面积大致相等的面积的第一开口 的液晶显示元件3的显示区域，并且发光侧反射构件设置在除了第一开口之外的区域中。 在导光体的光入射侧，从光源8向光轴方向设置有光入射侧反射构件，与光发射侧反射构件相对。

公开(公告)号：JP2013114022A

公开(公告)日：2013-06-10

申请号：JP2011259918

申请日：2011-11-29

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

Inventor： YOKOYAMA OSAMU

IPC: G02B27/28 ,  G02B27/02 ,  H04N5/64

Abstract: PROBLEM TO BE SOLVED: To utilize light from display elements to the maximum, cause external light to be attenuated to some extent and thereby increase the contrast of displayed images while using the see-through system.SOLUTION: A polarizing device comprises a first lens 221 formed of a refractive material whose refractive index at a first polarization azimuth angle is a first refractive index n1 and a second lens 222 formed of a refractive material whose refractive index at the first polarization azimuth angle is a first refractive index ne (=n1) and whose refractive index at a second polarization azimuth angle is a second refractive index no different from the first refractive index ne. The first lens 221 and the second lens 222 are so joined that their refraction indices at their respective first polarization azimuth angles are identical to each other, and the refraction indices of the refractive materials coming into contact with each other at the second polarization azimuth angle are different.

Abstract translation: 要解决的问题：为了最大限度地利用显示元件的光线，使外部光线在一定程度上被衰减，从而在使用透视系统的同时增加显示图像的对比度。 解决方案：偏振装置包括由折射材料形成的第一透镜221，其折射率在第一偏振方位角是第一折射率n1，第二透镜222由折射材料形成，折射材料的折射率在第一极化 方位角是第一折射率ne（= n1），并且其在第二偏振方位角处的折射率是与第一折射率ne不同的第二折射率。 第一透镜221和第二透镜222被接合，使得它们各自的第一偏振方位角处的折射率彼此相同，并且在第二偏振方位角处彼此接触的折射材料的折射率是 不同。 版权所有（C）2013，JPO＆INPIT