专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07529039B2 Object lens device with high numerical aperture and optical pickup device adopting the same 有权
标题翻译：具有高数值孔径的物镜透镜装置及其采用的光拾取装置
公开(公告)号：US07529039B2
公开(公告)日：2009-05-05
申请号：US11748753
申请日：2007-05-15
申请人： Jang-hoon Yoo , Dong-ho Shin , Soo-han Park
发明人： Jang-hoon Yoo , Dong-ho Shin , Soo-han Park
IPC分类号： G02B13/18 , G02B3/02 , G02B3/08 , G11B7/00 , G11B7/135
CPC分类号： G02B27/0037 , G02B27/4238 , G11B7/1353 , G11B7/1374 , G11B7/13922
摘要： An object lens arranged on a light proceeding path to focus light on a recording medium includes a first surface that is an incident surface on which light is incident, a second surface from which light exits to be focused on the recording medium, and a diffractive optical element disposed on at least one of the first and second surfaces and which has a refractivity of fD/f
摘要翻译：布置在光行进路径上以将光聚焦在记录介质上的物镜包括作为光入射的入射表面的第一表面，光从其出射以聚焦在记录介质上的第二表面，以及衍射光学元件设置在第一和第二表面中的至少一个上，并且具有fD / f <5的折射率，fD是衍射光学元件的焦距，f是物镜的焦距。物镜的数值孔径为0.75以上。

2. 发明申请

US20080074757A1 OBJECT LENS DEVICE WITH HIGH NUMERICAL APERTURE AND OPTICAL PICKUP DEVICE ADOPTING THE SAME 有权
标题翻译：具有高数值孔径的目标镜头装置和采用其的光学拾取装置
公开(公告)号：US20080074757A1
公开(公告)日：2008-03-27
申请号：US11748753
申请日：2007-05-15
申请人： Jang-hoon Yoo , Dong-ho Shin , Soo-han Park
发明人： Jang-hoon Yoo , Dong-ho Shin , Soo-han Park
IPC分类号： G02B3/10 , G11B7/00
CPC分类号： G02B27/0037 , G02B27/4238 , G11B7/1353 , G11B7/1374 , G11B7/13922
摘要： An object lens arranged on a light proceeding path to focus light on a recording medium includes a first surface that is an incident surface on which light is incident, a second surface from which light exits to be focused on the recording medium, and a diffractive optical element disposed on at least one of the first and second surfaces and which has a refractivity of fD/f
摘要翻译：布置在光行进路径上以将光聚焦在记录介质上的物镜包括作为光入射的入射表面的第一表面，光从其出射以聚焦在记录介质上的第二表面，以及衍射光学元件设置在所述第一表面和所述第二表面中的至少一个表面上，并且具有作为所述衍射光学元件的焦距的f D D / f <5的折射率 f是物镜的焦距。物镜的数值孔径为0.75以上。

3. 发明申请

US20060274631A1 Optical recording/reproducing apparatus 有权
标题翻译：光记录/重放装置
公开(公告)号：US20060274631A1
公开(公告)日：2006-12-07
申请号：US11430847
申请日：2006-05-10
申请人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
发明人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
IPC分类号： G11B7/135
CPC分类号： G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical recording/reproducing apparatus featuring stable information signal detection ability and reduced number of components. The optical recording/reproducing apparatus includes: a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.
摘要翻译：一种具有稳定的信息信号检测能力和数量减少的光记录/再现装置。光记录/重放装置包括：多个光源，发射不同波长的光，用于在各种不同记录密度的光学记录介质上记录/再现信息，其中从光源发出的至少两个光具有彼此正交的极化分量; 用于将来自每个光源的光聚焦到相应的光学记录介质的物镜; 设置在光源和物镜之间的准直透镜，用于准直来自光源的光; 安置在准直透镜和物镜之间的全息元件，用于折射从其中一个光源发射的光，其中通过波长和偏振分量选择待折射的光; 以及光接收器，其在被物镜聚焦之后接收从对应的光记录介质反射的光。

4. 发明申请

US20060164708A1 Optical pick-up device 有权
标题翻译：光学拾取装置
公开(公告)号：US20060164708A1
公开(公告)日：2006-07-27
申请号：US11332243
申请日：2006-01-17
申请人： Soo-han Park , Jang-hoon Yoo , Hang-hyeon Jang , Yong-han Yoon , Soo-jin Jung
发明人： Soo-han Park , Jang-hoon Yoo , Hang-hyeon Jang , Yong-han Yoon , Soo-jin Jung
IPC分类号： G02B26/08
CPC分类号： G11B7/1275 , G11B7/1353 , G11B7/1376 , G11B7/1378 , G11B7/13922 , G11B7/13925 , G11B2007/0006 , G11B2007/0013 , G11B2007/13727
摘要： An optical pickup device according to an embodiment of the present invention comprises a light source for projecting a beam of light to record and reproduce information with respect to an optical recording medium. A collimating lens is disposed on a path of the light to converge and convert the light into a parallel beam. An object lens condenses the parallel beam from the collimating lens and projects the parallel beam onto the optical recording medium. An optical element is disposed between the collimating lens and the object lens. A first actuator moves the collimating lens along the optical axis to thereby control a distance between the collimating lens and the optical element. A first controller drives the first actuator to find a position for the collimating lens, for reducing aberration generated in the light being projected to the optical recording medium. Accordingly, the aberration can be effectively prevented, thereby improving recording and reproducing performance of the optical pickup device.
摘要翻译：根据本发明的实施例的光学拾取装置包括用于投射光束以记录和再现关于光学记录介质的信息的光源。准直透镜设置在光的路径上以会聚并将光转换成平行光束。物镜将来自准直透镜的平行光束会聚并将平行光束投影到光记录介质上。光学元件设置在准直透镜和物镜之间。第一致动器沿着光轴移动准直透镜，从而控制准直透镜和光学元件之间的距离。第一控制器驱动第一致动器以找到用于准直透镜的位置，用于减少投射到光记录介质的光中产生的像差。因此，可以有效地防止像差，从而提高光拾取装置的记录和再现性能。

5. 发明申请

US20050169154A1 Objective lenes for high-density optical focusing and an optical disk in an optical pickup 失效
标题翻译：用于高密度光学聚焦的物镜和光学拾取器中的光盘
公开(公告)号：US20050169154A1
公开(公告)日：2005-08-04
申请号：US11091449
申请日：2005-03-29
申请人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
发明人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
IPC分类号： G02B13/00 , G02B3/08 , G02B13/18 , G11B7/085 , G11B7/09 , G11B7/095 , G11B7/135 , G11B7/24 , G11B7/00
CPC分类号： G11B7/13927 , G11B7/1362 , G11B7/1374 , G11B7/1378 , G11B2007/13725
摘要： An optical pickup includes a light source emitting a laser beam and an optical path changing unit altering a traveling path of an incident beam. An objective lens, disposed on an optical path between the optical path changing unit and an optical disk, focuses the incident beam from the light source to form a light spot on the optical disk of the objective lens. The optical pickup further includes a photodetector and an detecting-correcting unit, arranged on the optical path between the optical path changing unit and the objective lens, performing at least one of detecting the thickness of the optical disk and correcting aberration caused by thickness variations of the optical disk. The objective lens includes a first transmitting portion divergently transmitting an incident beam, where the first transmitting portion is at a relatively near-axis region from an optical axis of the objective lens. A second transmitting portion transmits the incident beam, where the second transmitting portion is arranged facing the first transmitting portion. A first reflecting portion condenses and reflects the incident beam from the first transmitting portion, where the first reflecting portion is formed around the second transmitting portion. A second reflecting portion condenses and reflects the incident beam from the first reflecting portion towards the second transmitting portion, where the second reflecting portion is formed around the first transmitting portion.
摘要翻译：光拾取器包括发射激光束的光源和改变入射光束的行进路径的光路改变单元。设置在光路改变单元和光盘之间的光路上的物镜聚焦来自光源的入射光束，以在物镜的光盘上形成光斑。光学拾取器还包括光电检测器和检测校正单元，其布置在光路改变单元和物镜之间的光路上，执行检测光盘的厚度和校正由厚度变化引起的像差中的至少一个光盘。物镜包括发射入射光束的第一透射部分，其中第一透射部分处于距离物镜的光轴的相对近轴的区域。第二发送部分透射入射光束，其中第二透射部分布置成面对第一透射部分。第一反射部分将来自第一透射部分的入射光束冷凝并反射，其中第一反射部分围绕第二透射部分形成。第二反射部分将来自第一反射部分的入射光束聚集并反射到第二透射部分，其中第二反射部分围绕第一透射部分形成。

6. 发明授权

US06938890B2 Objective lens for high-density optical focusing and an optical disk in an optical pickup 失效
标题翻译：用于高密度光学聚焦的物镜和光学拾取器中的光盘
公开(公告)号：US06938890B2
公开(公告)日：2005-09-06
申请号：US09725879
申请日：2000-11-30
申请人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
发明人： Jang-hoon Yoo , Kun-ho Cho , Seung-tae Jung , Chul-woo Lee , Dong-ho Shin
IPC分类号： G02B13/00 , G02B3/08 , G02B13/18 , G11B7/085 , G11B7/09 , G11B7/095 , G11B7/135 , G11B7/24 , G11B7/00
CPC分类号： G11B7/13927 , G11B7/1362 , G11B7/1374 , G11B7/1378 , G11B2007/13725
摘要： An optical pickup includes a light source emitting a laser beam and an optical path changing unit altering a traveling path of an incident beam. An objective lens, disposed on an optical path between the optical path changing unit and an optical disk, focuses the incident beam from the light source to form a light spot on the optical disk of the objective lens. The optical pickup further includes a photodetector and an detecting-correcting unit, arranged on the optical path between the optical path changing unit and the objective lens, performing at least one of detecting the thickness of the optical disk and correcting aberration caused by thickness variations of the optical disk. The objective lens includes a first transmitting portion divergently transmitting an incident beam, where the first transmitting portion is at a relatively near-axis region from an optical axis of the objective lens. A second transmitting portion transmits the incident beam, where the second transmitting portion is arranged facing the first transmitting portion. A first reflecting portion condenses and reflects the incident beam from the first transmitting portion, where the first reflecting portion is formed around the second transmitting portion. A second reflecting portion condenses and reflects the incident beam from the first reflecting portion towards the second transmitting portion, where the second reflecting portion is formed around the first transmitting portion.
摘要翻译：光拾取器包括发射激光束的光源和改变入射光束的行进路径的光路改变单元。设置在光路改变单元和光盘之间的光路上的物镜聚焦来自光源的入射光束，以在物镜的光盘上形成光斑。光学拾取器还包括光电检测器和检测校正单元，其布置在光路改变单元和物镜之间的光路上，执行检测光盘的厚度和校正由厚度变化引起的像差中的至少一个光盘。物镜包括发射入射光束的第一透射部分，其中第一透射部分处于距离物镜的光轴的相对近轴的区域。第二发送部分透射入射光束，其中第二透射部分布置成面对第一透射部分。第一反射部分将来自第一透射部分的入射光束冷凝并反射，其中第一反射部分围绕第二透射部分形成。第二反射部分将来自第一反射部分的入射光束聚集并反射到第二透射部分，其中第二反射部分围绕第一透射部分形成。

7. 发明授权

US07606135B2 Optical recording/reproducing apparatus capable of recording/reproducing information onto/from various types of optical recording media of different recording densities and different thicknesses 有权
标题翻译：能够在不同记录密度和不同厚度的各种类型的光学记录介质上记录/再现信息的光学记录/再现设备
公开(公告)号：US07606135B2
公开(公告)日：2009-10-20
申请号：US11430847
申请日：2006-05-10
申请人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
发明人： Jang-hoon Yoo , Hag-hyun Jang , Soo-han Park , Soo-jin Jeong , Tae-youn Heor , Bong-gi Kim
IPC分类号： G11B7/00
CPC分类号： G11B7/1275 , G11B7/1353 , G11B2007/0006
摘要： An optical recording/reproducing apparatus including a plurality of light sources emitting lights with different wavelengths for use in recording/reproducing information onto/from various types of optical recording media of different recording densities, in which at least two lights emitted from the light sources have polarization components orthogonal to each other; an objective lens for focusing a light from each of the light sources to a corresponding optical recording medium; a collimating lens disposed between the light sources and the objective lens for collimating lights from the light sources; a hologram element installed between the collimating lens and the objective lens for refracting a light emitted from one of the light sources, in which the light to be refracted is selected by wavelength and polarization components; and a photodetector receiving a light that is reflected from the corresponding optical recording medium after being focused by the objective lens.
摘要翻译：一种光学记录/再现装置，包括发射具有不同波长的光的多个光源，用于在/不同记录密度的各种类型的光学记录介质上记录/再现信息，其中从光源发射的至少两个光具有极化分量彼此正交; 用于将来自每个光源的光聚焦到相应的光学记录介质的物镜; 设置在光源和物镜之间的准直透镜，用于准直来自光源的光; 安置在准直透镜和物镜之间的全息元件，用于折射从其中一个光源发射的光，其中通过波长和偏振分量选择待折射的光; 以及光接收器，其在被物镜聚焦之后接收从对应的光记录介质反射的光。

8. 发明授权

US07593306B2 Diffraction element and optical pick-up apparatus having the same 失效
$Diffraction element and optical pick-up apparatus having the same$
标题翻译：具有该衍射元件和光学拾取装置的衍射元件
公开(公告)号：US07593306B2
公开(公告)日：2009-09-22
申请号：US11337584
申请日：2006-01-24
申请人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
发明人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
IPC分类号： G11B7/00
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0909 , G11B7/1381
摘要： A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.
摘要翻译：提供了一种用于光学拾取装置的衍射元件，其能够进行更精确的聚焦控制。用于光学拾取装置的衍射元件被分成第一和第二区域，每个区域形成有栅格图案，栅格图案以预定间距P重复。第一和第二区域中的至少一个区域中的栅格图案是相对于基本上垂直于划分第一和第二区域的分割线DL的虚拟线VL倾斜预定角度。

9. 发明申请

US20060176790A1 Optical disk writing and reading apparatus, and method thereof 审中-公开
标题翻译：光盘写入读取装置及其方法
公开(公告)号：US20060176790A1
公开(公告)日：2006-08-10
申请号：US11348339
申请日：2006-02-07
申请人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
发明人： Jang-hoon Yoo , Soo-han Park , Chun-seong Park , Tae-hoon Lee
IPC分类号： G11B5/09 , G11B7/00
CPC分类号： G11B7/1369 , G11B7/0948 , G11B7/1267 , G11B7/1376 , G11B7/13927 , G11B2007/0013
摘要： An optical disk writing and reading apparatus and a method thereof is provided. The optical disk writing and reading apparatus has an optical pick-up for writing or reading data on an optical disk by using a laser light of a certain wavelength, an optical power calculation part for calculating an optical power of the laser light generated from the optical pick-up, and a micom operating the optical power calculation part by every certain time to detect the optical power of the laser light and adjusting the optical power of the laser light based on a preset optimum optical power to be optimized while writing the data on the optical disk.
摘要翻译：提供了一种光盘写入读取装置及其方法。光盘写入读取装置具有通过使用一定波长的激光在光盘上写入或读取数据的光学拾取器，用于计算从光学产生的激光的光学功率的光学功率计算部拾取器和微型计算机，每隔一定时间操作光功率计算部件，以检测激光的光功率，并且基于在将数据写入时优化的预设最佳光功率来调整激光的光功率光盘。

10. 发明申请

US20060120248A1 Diffraction element and optical pick-up apparatus having the same 失效
$Diffraction element and optical pick-up apparatus having the same$
公开(公告)号：US20060120248A1
公开(公告)日：2006-06-08
申请号：US11337584
申请日：2006-01-24
申请人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
发明人： Bong-gi Kim , Soo-han Park , Jang-hoon Yoo
IPC分类号： G11B7/135
CPC分类号： G11B7/1353 , G11B7/0903 , G11B7/0909 , G11B7/1381
摘要： A diffraction element for an optical pick-up apparatus is provided that enables more accurate focusing control. The diffraction element for an optical pick-up apparatus is divided into first and second regions, each being formed with a grid pattern in which grids are repeated with a predetermined pitch P. The grid pattern in at least one of the first and second regions is tilted by a predetermined angle with respect to a virtual line VL substantially perpendicular to a division line DL that divides the first and second regions.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式