公开(公告)号：US20080031106A1

公开(公告)日：2008-02-07

申请号：US11630289

申请日：2005-03-01

申请人： Kentaro Terashima ,  Takahiro Miyake

发明人： Kentaro Terashima ,  Takahiro Miyake

IPC分类号： G11B7/00

CPC分类号： G02B5/1866 ,  G02B27/14 ,  G11B7/1353 ,  G11B7/1378 ,  G11B7/13925 ,  G11B7/1398 ,  G11B2007/13727

摘要： An optical pickup apparatus includes a diffraction grating having a grating constant that is entirely uniform. The duty ratio referred to as L/G duty that is the ratio between a land L and a groove G and defined by the expression UG duty (%)=L/(L+G)×100 is continuously changed in the direction orthogonal to grating grooves of the diffraction grating. For example, the L/G duty ratio is set close to 50% in a central portion of the diffraction grating while the duty is set close to 100% in an outer peripheral portion of the diffraction grating. Accordingly, the number of components of the optical pickup is reduced while loss in light quantity in recording and reproduction can be minimized.

摘要翻译： 光拾取装置包括具有完全均匀的光栅常数的衍射光栅。 被称为L / G占空比的占空比（L / G占空比）是在与光栅正交的方向上连续变化的L / G占空比（由表达式UG占空比（％）= L /（L + G）×100）定义的） 衍射光栅的凹槽。 例如，在衍射光栅的中心部分的L / G占空比设定为接近50％，而在衍射光栅的外周部分的占空比设定为接近100％。 因此，减少了光学拾取器的部件数量，同时减少了记录和再现中的光量损失。

公开(公告)号：US20140111697A1

公开(公告)日：2014-04-24

申请号：US14008972

申请日：2012-04-03

申请人： Kentaro Terashima

发明人： Kentaro Terashima

IPC分类号： F21V8/00

CPC分类号： G02B6/0055 ,  G02F1/133615 ,  G02F1/133617

摘要： Provided is an illumination device that is capable of improving the utilization efficiency of light, while being lighter and thinner. This illumination device (10) is provided with: a light source (11) that emits ultraviolet light; a light guide plate (14) that guides the light from the light source; an optical member (15) placed between the light source and the light guide plate and that allows ultraviolet light emitted from the light source to pass through and that reflects visible light; and a fluorescent member (16) that is arranged between an ultraviolet light incident surface (15d) of the optical member and the light guide plate and that converts the ultraviolet light into visible light.

摘要翻译： 提供一种照明装置，其能够在更轻更薄的同时提高光的利用效率。 该照明装置（10）设置有：发出紫外线的光源（11） 引导来自光源的光的导光板（14）; 放置在光源和导光板之间并允许从光源发射的紫外光通过并反射可见光的光学部件（15）; 以及布置在光学构件的紫外光入射表面（15d）和导光板之间并将紫外光转换成可见光的荧光构件（16）。

公开(公告)号：US06454467B1

公开(公告)日：2002-09-24

申请号：US09692264

申请日：2000-10-19

申请人： Takehisa Ishihara ,  Hajime Kashida ,  Kentaro Terashima

发明人： Takehisa Ishihara ,  Hajime Kashida ,  Kentaro Terashima

IPC分类号： G02B636

CPC分类号： G02B6/4246 ,  G02B6/2804

摘要： In an optical transmission and reception module, a partitioning member separating a light emitting device and a light receiving device from each other includes a partitioning plate having a concave surface, an engaging portion to which the partitioning plate is fixed, a holding portion holding the engaging portion movably, and a leaf spring for pressing the engaging portion against an optical plug. An end surface of an optical fiber is convex and projects from a front end of the optical plug. When the end surface of the optical plug is in contact with an engaging surface of the engaging portion, a gap is generated between the end surface of the optical fiber and a surface opposed thereto.

摘要翻译： 在光传输和接收模块中，将发光器件和光接收装置分隔开的分隔构件包括具有凹面的分隔板，固定有分隔板的接合部，保持部， 以及用于将接合部分压靠在光学插头上的板簧。 光纤的端面是凸形的并且从光学插头的前端突出。 当光学插塞的端面与接合部的接合面接触时，在光纤的端面与与其相反的面之间产生间隙。

公开(公告)号：US20140125922A1

公开(公告)日：2014-05-08

申请号：US14124185

申请日：2012-05-30

申请人： Kentaro Terashima

发明人： Kentaro Terashima

IPC分类号： F21V8/00

CPC分类号： G02B6/0011 ,  G02B6/0083 ,  G02B6/0085

摘要： An edge-light type backlight device includes: a light guide plate that is housed in a frame-shaped member; a long wiring substrate 60 that is positioned at least on one side face of the light guide plate; a plurality of point-shaped light sources 80 that are positioned in the wiring substrate 60; and a rectangular heat spreader 70 that is positioned along the wiring substrate 60 and that dissipates the heat of the wiring substrate 60. The wiring substrate 60 and the heat spreader 70 are fixed to each other by screws 65 that are disposed on both ends in the lengthwise direction of the heat spreader 70, and are adhered to each other via a double-sided adhesive tape 75 that is positioned in the central portion of the heat spreader 70 in the lengthwise direction thereof.

摘要翻译： 边缘型背光装置包括：导光板，其容纳在框状构件中; 位于导光板的至少一个侧面上的长布线基板60; 位于布线基板60中的多个点状光源80; 以及沿着布线基板60定位并散发布线基板60的热量的矩形散热器70.布线基板60和散热器70通过螺钉65彼此固定，螺钉65设置在布线基板60的两端。 散热器70的长度方向，并且通过位于散热器70的长度方向的中央部的双面胶带75彼此粘合。

公开(公告)号：US20060018215A1

公开(公告)日：2006-01-26

申请号：US11187360

申请日：2005-07-21

申请人： Takahiro Miyake ,  Kentaro Terashima

发明人： Takahiro Miyake ,  Kentaro Terashima

IPC分类号： G11B7/00

CPC分类号： G11B7/1398 ,  G11B7/0903 ,  G11B7/1353

摘要： An object of the present invention is to provide an optical pickup device which improves resolution of reproduced signals without increasing the number of components, and does not require positional adjustment of a grating during assembly of the optical pickup device. For this purpose, the optical pickup device of the present invention includes a semiconductor laser 1, a grating 3, an objective lens 5, and a push-pull signal detecting section 10. The grating 3 divides a light beam emitted from the semiconductor laser 1 into a 0-order diffracted beam, and a pair of ±1st-order diffracted beams. The grating 3 is set so that a reduction rate of light intensity for the 0-order diffracted beam is decreased and intensities of the pair of ±1st-order diffracted beams are decreased from a vicinity of an optical axis toward periphery parts. Accordingly, the 0-order diffracted beam has a flat intensity distribution, and the intensities of the pair of ±1st-order diffracted beams are higher in the vicinity of the optical axis than in the periphery part. Thus, the resolution of reproduced signals can be improved, and the positional adjustment of the grating can be omitted.

摘要翻译： 本发明的目的是提供一种光拾取装置，其在不增加部件数量的情况下提高再现信号的分辨率，并且在组装光学拾取装置期间不需要光栅的位置调整。 为此，本发明的光拾取装置包括半导体激光器1，光栅3，物镜5和推挽信号检测部分10。 光栅3将从半导体激光器1发射的光束分成0级衍射光束和一对±1级衍射光束。 设置光栅3，使得0级衍射光束的光强度的减小率减小，并且一对±1级衍射光束的强度从光轴附近朝向周边部分减小。 因此，0级衍射光束具有平坦的强度分布，并且一对±1级衍射光束的强度在光轴附近比在周边部分高。 因此，可以提高再现信号的分辨率，并且可以省略光栅的位置调整。

公开(公告)号：US20140340586A1

公开(公告)日：2014-11-20

申请号：US14344143

申请日：2012-09-07

申请人： Kentaro Terashima

发明人： Kentaro Terashima

IPC分类号： F21V8/00

CPC分类号： G02B6/0031 ,  G02B6/0055 ,  G02B6/0068 ,  G02B6/0085 ,  G02B6/0088 ,  G02B6/009

摘要： This backlight device (illumination device) (12) is provided with: a plurality of LEDs (light sources) (17) arranged in a row at intervals; a light-guide plate (16) having a light-receiving surface (16b) that is arranged opposing the LEDs (17) and that receives light from the LEDs (17) and a light-emitting surface (16a) from which the light that entered is emitted; a reflective sheet (reflective member) (20) arranged so as to cover the surface of the light-guide plate (16) opposite to the light-emitting surface (16a) and that reflects light toward the light-emitting surface (16a); and an extended reflective part (26) provided in an edge portion of the reflective sheet (20), the extended reflective part (26) extending toward the LEDs (17) from the light-receiving surface (16b), the extended reflective part (26) having openings (27) formed therein that correspond to the arrangement pattern of the LEDs (17), thereby being arranged corresponding to the non-arrangement pattern where the LEDs (17) are not provided.

摘要翻译： 该背光装置（照明装置）（12）设置有：间隔地配置成行的多个LED（光源）（17） 具有与LED（17）相对设置并且接收来自所述LED（17）的光的光接收表面（16b）和发光表面（16a）的导光板（16），所述光从所述光 输入; 反射片（反射构件）（20），其布置成覆盖与所述发光表面（16a）相对的所述导光板（16）的表面，并将光反射到所述发光表面（16a）; 以及设置在所述反射片（20）的边缘部分中的延伸反射部（26），所述延伸反射部（26）从所述受光面（16b）向所述LED（17）延伸，所述延伸反射部 26），其中形成有与LED（17）的布置图案相对应的开口（27），从而相应于未设置LED（17）的非排列图案布置。

公开(公告)号：US08888348B2

公开(公告)日：2014-11-18

申请号：US14008972

申请日：2012-04-03

申请人： Kentaro Terashima

发明人： Kentaro Terashima

IPC分类号： F21V8/00 ,  G02F1/1335

CPC分类号： G02B6/0055 ,  G02F1/133615 ,  G02F1/133617

摘要： Provided is an illumination device that is capable of improving the utilization efficiency of light, while being lighter and thinner. This illumination device (10) is provided with: a light source (11) that emits ultraviolet light; a light guide plate (14) that guides the light from the light source; an optical member (15) placed between the light source and the light guide plate and that allows ultraviolet light emitted from the light source to pass through and that reflects visible light; and a fluorescent member (16) that is arranged between an ultraviolet light incident surface (15d) of the optical member and the light guide plate and that converts the ultraviolet light into visible light.

摘要翻译： 提供一种照明装置，其能够在更轻更薄的同时提高光的利用效率。 该照明装置（10）设置有：发出紫外线的光源（11） 引导来自光源的光的导光板（14）; 放置在光源和导光板之间并允许从光源发射的紫外光通过并反射可见光的光学部件（15）; 以及布置在光学构件的紫外光入射表面（15d）和导光板之间并将紫外光转换成可见光的荧光构件（16）。

公开(公告)号：US07111311B2

公开(公告)日：2006-09-19

申请号：US10726365

申请日：2003-12-02

申请人： Kentaro Terashima

发明人： Kentaro Terashima

IPC分类号： G11B7/08

CPC分类号： G11B7/1374 ,  G11B7/121 ,  G11B33/08 ,  G11B2007/13727

摘要： A shock absorber includes a projection that projects toward an optical disk and projects out of a surface of an objective lens facing the optical disk to prevent collision of the objective lens and the optical disk. The shock absorber has a surface resistivity of not more than 1010 Ω at least for the projection. In this way, the shock absorber (projection) will not be electrified when the optical disk and the shock absorber (projection) collide with each other, and accordingly the shock absorber (projection, in particular) does not attract dust or particles. As a result, the dust or particles do not damage the optical disk even when the optical disk and the shock absorber (projection) collide again.

摘要翻译： 减震器包括朝向光盘突出并突出到面向光盘的物镜的表面之外的突起，以防止物镜与光盘的碰撞。 至少对于投影来说，减震器的表面电阻率不大于10×10Ω。 以这种方式，当光盘和减震器（突起）相互碰撞时，减震器（突起）不会通电，因此减震器（特别是突起）不会吸引灰尘或颗粒。 结果，即使当光盘和减震器（投影）再次碰撞时，灰尘或颗粒也不会损坏光盘。

公开(公告)号：US06718091B2

公开(公告)日：2004-04-06

申请号：US10211610

申请日：2002-08-02

申请人： Takehisa Ishihara ,  Hajime Kashida ,  Kentaro Terashima

发明人： Takehisa Ishihara ,  Hajime Kashida ,  Kentaro Terashima

IPC分类号： G02B634

CPC分类号： G02B6/4246 ,  G02B6/2804

摘要： In an optical transmission and reception module, a partitioning member separating a light emitting device and a light receiving device from each other includes a partitioning plate having a concave surface, an engaging portion to which the partitioning plate is fixed, a holding portion holding the engaging portion movably, and a leaf spring for pressing the engaging portion against an optical plug. An end surface of an optical fiber is convex and projects from a front end of the optical plug. When the end surface of the optical plug is in contact with an engaging surface of the engaging portion, a gap is generated between the end surface of the optical fiber and a surface opposed thereto.

摘要翻译： 在光传输和接收模块中，将发光器件和光接收装置分隔开的分隔构件包括具有凹面的分隔板，固定有分隔板的接合部，保持部， 以及用于将接合部分压靠在光学插头上的板簧。 光纤的端面是凸形的并且从光学插头的前端突出。 当光学插塞的端面与接合部的接合面接触时，在光纤的端面与与其相反的面之间产生间隙。

公开(公告)号：US06254282B1

公开(公告)日：2001-07-03

申请号：US09292520

申请日：1999-04-15

申请人： Takehisa Ishihara ,  Hideki Miyuki ,  Kazuhito Nagura ,  Kentaro Terashima

发明人： Takehisa Ishihara ,  Hideki Miyuki ,  Kazuhito Nagura ,  Kentaro Terashima

IPC分类号： G02B638

CPC分类号： G02B6/125 ,  G02B6/3817 ,  G02B6/3818 ,  G02B6/382 ,  G02B6/3847 ,  G02B6/3849 ,  G02B6/3885 ,  G02B6/3895 ,  G02B6/4201 ,  G02B6/421 ,  G02B6/4214 ,  G02B6/4246 ,  G02B6/4292 ,  G02B2006/1219 ,  H01R24/58 ,  H01R2105/00 ,  H01R2107/00

摘要： In an optical transmit-receive module, an optical fiber plug connected with an optical fiber for optical transmission is removably inserted in a housing. Within the housing, there are provided a branching type light guide, and an optical semiconductor device giving an optical signal to the branching type light guide and receiving an optical signal from the branching type light guide. When the optical fiber plug is inserted in the housing, it is optically connected with the branching type light guide through a light-permeable member having a refractive index approximately equal to refractive indices of the optical fiber and the branching type light guide.

摘要翻译： 在光发射接收模块中，与用于光传输的光纤连接的光纤插头可拆卸地插入壳体中。 在壳体内设置有分支型导光体和向分支型导光体提供光信号并从分支型导光体接收光信号的光半导体装置。 当光纤插头插入壳体中时，其通过具有近似等于光纤和分支型光导的折射率的折射率的透光部件与分支型导光体光学连接。