-
11.发明授权Optical pickup for recording and reproducing information with a plurality of types of optical information recording mediums 失效用于利用多种类型的光学信息记录介质记录和再现信息的光学拾取器公开(公告)号：US07830773B2
公开(公告)日：2010-11-09
申请号：US11667844
申请日：2005-09-16
IPC分类号： G11B7/135
CPC分类号： G11B7/0903 , G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup device in which a hologram element has a plurality of different diffraction directions. In the tracking standard state, the hologram element is divided into six areas by a straight line connecting two strength center points of two light beams, and by two straight lines that are perpendicular to the straight line. By adding the amount of light received by an area demarcated by two straight lines that pass the two strength center points, to the amount of light received by one of two outer areas sandwiching the area depending on the type of the light beam, it is possible to obtain a well-balanced tracking error signal for each of the two light beams.
摘要翻译： 一种其中全息元件具有多个不同衍射方向的光学拾取装置。 在跟踪标准状态下，通过连接两个光束的两个强度中心点的直线和与直线垂直的两条直线将全息元件分成六个区域。 通过将通过两个强度中心点的两条直线划分的区域所接收的光量相对于根据光束类型夹住该区域的两个外部区域之一接收的光量，可以 以获得两个光束中的每一个的均衡的跟踪误差信号。
-
公开(公告)号：US20090034394A1
公开(公告)日：2009-02-05
申请号：US11667844
申请日：2005-09-16
IPC分类号： G11B7/00
CPC分类号： G11B7/0903 , G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup device in which a hologram element has a plurality of different diffraction directions. In the tracking standard state, the hologram element is divided into six areas by a straight line connecting two strength center points of two light beams, and by two straight lines that are perpendicular to the straight line. By adding the amount of light received by an area demarcated by two straight lines that pass the two strength center points, to the amount of light received by one of two outer areas sandwiching the area depending on the type of the light beam, it is possible to obtain a well-balanced tracking error signal for each of the two light beams.
摘要翻译： 一种其中全息元件具有多个不同衍射方向的光学拾取装置。 在跟踪标准状态下，通过连接两个光束的两个强度中心点的直线和与直线垂直的两条直线将全息元件分成六个区域。 通过将通过两个强度中心点的两条直线划分的区域所接收的光量相对于根据光束类型夹住该区域的两个外部区域之一接收的光量，可以 以获得两个光束中的每一个的均衡的跟踪误差信号。
-
公开(公告)号：US20060077859A1
公开(公告)日：2006-04-13
申请号：US11238139
申请日：2005-09-29
IPC分类号： G11B7/00
CPC分类号： G11B7/131 , G11B7/0903 , G11B7/123 , G11B7/1353 , G11B2007/0006
摘要： An optical pickup includes: two laser diodes respectively operable to emit optical beams having different wave lengths; a diffraction grating operable to diffract each optical beam to a zero order diffracted beam and plus and minus first order diffracted beams; a holographic optical element operable to diffract the beams reflected from a recording medium; and photoelectric devices operable to receive the beams diffracted by the holographic optical element, wherein a photoelectric device for generating a tracking error signal and a photoelectric device for generating a focus error signal are disposed on opposite sides with respect to the laser diodes so as to face each other.
摘要翻译： 光拾取器包括：两个激光二极管，分别可操作地发射具有不同波长的光束; 衍射光栅，其可操作以将每个光束衍射到零级衍射光束和正负衍射光束; 全息光学元件，其可操作地衍射从记录介质反射的光束; 以及可操作以接收由全息光学元件衍射的光束的光电装置，其中用于产生跟踪误差信号的光电装置和用于产生聚焦误差信号的光电装置设置在相对于激光二极管的相对侧上，以便面对 彼此。
-
14.发明授权Optical element with diffraction grating, semiconductor device, and optical information recording device employing the same 失效具有衍射光栅的光学元件，半导体器件和采用该光学元件的光学信息记录装置公开(公告)号：US07139235B2
公开(公告)日：2006-11-21
申请号：US10070288
申请日：2001-07-04
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0912 , G11B7/0943 , G11B7/123 , G11B7/131 , H01S5/02248 , H01S5/02296
摘要： An optical semiconductor device comprising an emitted beam branching section (61) which branches an emitted light beam from a laser device (51), a reflected light beam branching section (71) which branches a reflected light beam from an information recording medium (3) into light beams different from each other in focused state, servo signal sensing photodetectors (43, 45) which receive the branched reflected light beam in a defocused state, a first diffraction grating provided in the emitted light beam branching section for diffracting the reflected light beam having passed through the reflected light beam flux branching section, and a signal sensing photodetector (47) which receives the reflected light beam diffracted by the first diffraction grating.
摘要翻译： 一种光学半导体装置，包括从激光装置（51）分支发射的光束的发射光束分支部分（61），从信息记录介质（3）分支反射的光束的反射光束分支部分（71） 在聚焦状态下彼此不同的光束，以散焦状态接收分支的反射光束的伺服信号感测光电检测器（43,45），设置在发射光束分支部分中用于衍射反射光束的第一衍射光栅 已经通过反射光束分支部分的信号感测光电检测器（47），其接收由第一衍射光栅衍射的反射光束。
-
15.发明授权公开(公告)号：US06501601B1
公开(公告)日：2002-12-31
申请号：US09557711
申请日：2000-04-25
IPC分类号： G02B518
CPC分类号： G11B7/1353 , G02B5/1866 , G11B7/0903 , G11B7/123 , G11B7/1356 , G11B11/10543 , G11B11/10576
摘要： An optical device includes a light-emitting element for irradiating light onto an information recording medium, a diffraction grating for splitting light emitted from said light-emitting element into a plurality of beams, a focussing member for focussing the plurality of beams onto the information recording medium, a deflection member for deflecting the plurality of beams after they have been reflected from the information recording medium; and a photodetector for receiving the plurality of beams after they have been deflected by the deflection member. The diffraction grating has a first grating region and a second grating region, which have different diffraction efficiencies. The zero-order diffraction light in the first grating region is used as the main beam for reproducing the information signal, and the +1-order or −1-order diffraction light in the second grating regions is used as sub-beams for reproduction of the tracking error signal. Thus, the light amount of both the main beam and the sub-beams can be increased without increasing the light emission of the semiconductor laser element 1, and the S/N ratio of the main beam and the sub-beams can be enhanced.
摘要翻译： 光学装置包括用于将光照射到信息记录介质上的发光元件，用于将从所述发光元件发射的光分解成多个光束的衍射光栅，用于将多个光束聚焦到信息记录上的聚焦部件 介质，用于在已经从信息记录介质反射之后偏转多个光束的偏转构件; 以及用于在被偏转构件偏转之后接收多个光束的光电检测器。 衍射光栅具有第一光栅区域和第二光栅区域，其具有不同的衍射效率。 将第一光栅区域中的零级衍射光用作再现信息信号的主光束，并且将第二光栅区域中的+ 1级或-1级衍射光用作用于再现 跟踪误差信号。 因此，在不增加半导体激光元件1的发光的同时，可以增加主光束和子光束的光量，并且可以提高主光束和子光束的S / N比。
-
公开(公告)号：US07970033B2
公开(公告)日：2011-06-28
申请号：US12510785
申请日：2009-07-28
IPC分类号： H01S3/04
CPC分类号： G11B7/127 , B29C45/0046 , B29C45/14655 , B29C45/14836 , B29C45/2708 , G11B7/22 , H01L21/565 , H01L23/3107 , H01L23/49562 , H01L2224/48247 , H01L2224/49171 , H01S5/02244 , H01L2924/00
摘要： A semiconductor device includes: a first lead having an element mounting portion; a second lead located in a same plane as the first lead, with a predetermined space left between the first lead and the second lead; a molding encapsulant made of a resin for fixing the leads; and a semiconductor element affixed to a top surface of the element mounting portion of the first lead. The molding encapsulant covers at least part of each of upper and lower surfaces of the leads. A resin injection hole mark, which is a mark of a hole through which the encapsulant has been injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead.
摘要翻译： 一种半导体器件包括：具有元件安装部分的第一引线; 位于与所述第一引线相同的平面中的第二引线，在所述第一引线和所述第二引线之间留有预定空间; 由用于固定引线的树脂制成的模制密封剂; 以及固定到第一引线的元件安装部分的顶表面的半导体元件。 成型密封剂覆盖引线的上表面和下表面的每一个的至少一部分。 作为密封剂注入的孔的标记的树脂注入孔标记留在密封剂上，树脂注入孔标记的一部分位于第一引线或第二引线的上方，其余部分 的树脂注入孔标记位于第一引线和第二引线之间的空间的上方。
-
17.发明授权Diffractive optical element that polarizes light and an optical pickup using the same 失效使光偏振的衍射光学元件和使用其的光学拾取器公开(公告)号：US06947213B2
公开(公告)日：2005-09-20
申请号：US10774960
申请日：2004-02-09
IPC分类号： G02B5/18 , G02B5/30 , G11B7/12 , G11B7/135 , G11B11/105
CPC分类号： G11B11/10543 , G02B5/1809 , G02B5/1819 , G02B5/3025 , G02B27/4238 , G02B27/4277 , G11B7/123 , G11B7/1353 , G11B7/1395
摘要： A first diffractive optical element pattern with a pattern pitch that is no greater than a wavelength of incident light is formed on a first main surface of substrate such as a glass plate. Second diffractive optical element patterns are formed at positions that are respectively incident to positive first-order diffracted light and negative first-order diffracted light produced by the first diffractive optical element pattern. Negative first-order diffracted light produced by each second diffractive optical element pattern is incident upon a boundary face of the substrate at an angle that is smaller than the critical angle, and so exits the substrate.
摘要翻译： 在诸如玻璃板的基板的第一主表面上形成具有不大于入射光的波长的图案间距的第一衍射光学元件图案。 第二衍射光学元件图案形成在分别入射到由第一衍射光学元件图案产生的正一级衍射光和负一级衍射光的位置处。 由每个第二衍射光学元件图案产生的负一级衍射光以小于临界角的角度入射到衬底的边界面上，并且因此离开衬底。
-
公开(公告)号：US06614743B1
公开(公告)日：2003-09-02
申请号：US09710995
申请日：2000-11-09
IPC分类号： G11B700
CPC分类号： G11B7/131 , G11B7/0903 , G11B7/0912 , G11B7/123 , G11B7/13 , G11B7/1353 , G11B7/1381 , G11B2007/0006
摘要： A semiconductor laser device includes a semiconductor laser element, a light beam branching element for branching a light beam emitted from the semiconductor laser element and reflected by an optical recording medium into a plurality of light beams, a light beam reflector for reflecting the light beam branched by the light beam branching element, and a photodetector portion for detecting the light beam reflected by the light beam reflector. The light beam branching element and the photodetector portion are formed on the same substrate. The miniature semiconductor laser device can be assembled without complicated position adjustment and has less deterioration of characteristics arising from misregistration during and after assembly.
摘要翻译： 半导体激光器件包括半导体激光元件，用于将从半导体激光元件发出的光束分支并由光学记录介质反射成多个光束的光束分支元件，用于反射光束分支的光束反射器 由光束分支元件和用于检测由光束反射器反射的光束的光电检测器部分。 光束分支元件和光电检测器部分形成在相同的基板上。 微型半导体激光装置可以在没有复杂的位置调整的情况下进行组装，并且在组装期间和组装之后由于配准不良引起的特性劣化较少。
-
公开(公告)号：US20100046564A1
公开(公告)日：2010-02-25
申请号：US12510785
申请日：2009-07-28
CPC分类号： G11B7/127 , B29C45/0046 , B29C45/14655 , B29C45/14836 , B29C45/2708 , G11B7/22 , H01L21/565 , H01L23/3107 , H01L23/49562 , H01L2224/48247 , H01L2224/49171 , H01S5/02244 , H01L2924/00
摘要： A semiconductor device includes: a first lead having an element mounting portion; a second lead located in a same plane as the first lead, with a predetermined space left between the first lead and the second lead; a molding encapsulant made of a resin for fixing the leads; and a semiconductor element affixed to a top surface of the element mounting portion of the first lead. The molding encapsulant covers at least part of each of upper and lower surfaces of the leads. A resin injection hole mark, which is a mark of a hole through which the encapsulant has been injected, is left on the encapsulant, and part of the resin injection hole mark is located above the first lead or the second lead, and the remaining part of the resin injection hole mark is located above a space between the first lead and the second lead.
摘要翻译： 一种半导体器件包括：具有元件安装部分的第一引线; 位于与所述第一引线相同的平面中的第二引线，在所述第一引线和所述第二引线之间留有预定空间; 由用于固定引线的树脂制成的模制密封剂; 以及固定到第一引线的元件安装部分的顶表面的半导体元件。 成型密封剂覆盖引线的上表面和下表面的每一个的至少一部分。 作为密封剂注入的孔的标记的树脂注入孔标记留在密封剂上，树脂注入孔标记的一部分位于第一引线或第二引线的上方，其余部分 的树脂注入孔标记位于第一引线和第二引线之间的空间的上方。
-
公开(公告)号：US20090086769A1
公开(公告)日：2009-04-02
申请号：US12186979
申请日：2008-08-06
IPC分类号： H01S3/30
CPC分类号： B82Y20/00 , G11B7/127 , H01L2224/48091 , H01S5/0021 , H01S5/0071 , H01S5/02212 , H01S5/02216 , H01S5/02224 , H01S5/02248 , H01S5/02292 , H01S5/024 , H01S5/02476 , H01S5/028 , H01S5/34333 , H01L2924/00014
摘要： A semiconductor device includes an optical semiconductor element, a package including a base made of a metal for mounting the optical semiconductor element, and a cap for encapsulating the optical semiconductor element and a gas by covering the package and the optical semiconductor element. The gas encapsulated with the package has an oxygen concentration not less than 15% and less than 30% and has a dew-point not less than −15° C. and not more than −5° C.
摘要翻译： 半导体器件包括光学半导体元件，包括由用于安装光学半导体元件的金属制成的基座的封装以及用于通过覆盖封装和光学半导体元件来封装光学半导体元件的盖和气体。 用包装封装的气体的氧浓度不小于15％且小于30％，露点不低于-15℃且不大于-5℃。
-
-
-
-
-
-
-
-
-
搜索结果
26 条记录 (耗时 0.025 秒)
