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1. 发明授权

US06330118B1 Dual focus lens with extended depth of focus 失效
标题翻译：双焦距镜头，具有更高的焦距
公开(公告)号：US06330118B1
公开(公告)日：2001-12-11
申请号：US09288269
申请日：1999-04-08
申请人： Walter Daschner , Barry Block , Arnold Thornton , Bernard Kress
发明人： Walter Daschner , Barry Block , Arnold Thornton , Bernard Kress
IPC分类号： G02B310
CPC分类号： G11B7/1365 , G02B5/1876 , G02B5/188 , G11B7/0908 , G11B7/1353 , G11B7/1374 , G11B7/13922 , G11B2007/0006
摘要： A magneto optic or optical disk drive comprises a laser source for providing laser beam, and a lens or compound lens for focussing the laser onto a currently inserted recording disk with specific overcoat thickness. In one embodiment, the lens is a compound lens that can focus aberration-free spots on different types of disk media having recording layers located under overcoats of different thicknesses. When a specific disk is inserted, only one spot in focussed onto the current recording layer. Furthermore, if the disk spins rapidly, it can wobble. The lens or compound lens comprises different regions where the focal length may vary slightly and continuously or discretely. Because of this, as the disk wobbles, the lens can nonetheless continue to focus laser light onto a small spot on the recording media, providing increased depth of focus in the vicinity of the currently inserted recording media. Furthermore, the increased depth of focus will also remedy problems related to the change in focal length of the lens with changes in wavelength of the laser source. Because some of these changes in wavelength occur abruptly, this is also a case in which the limited performance of the auto-focus tracking system would be overly burdened.
摘要翻译：磁光盘或光盘驱动器包括用于提供激光束的激光源和用于将激光聚焦到具有特定外涂层厚度的当前插入的记录盘上的透镜或复合透镜。在一个实施例中，透镜是可以将像差自由点聚焦在具有位于不同厚度的外涂层下的记录层的不同类型的盘介质上的复合透镜。当插入特定盘时，只有一个点集中在当前记录层上。此外，如果磁盘快速旋转，则可能会摆动。透镜或复合透镜包括不同的区域，其中焦距可以稍微和连续地或离散地变化。正因为如此，随着磁盘的摆动，透镜可以继续将激光聚焦到记录介质上的一个小点上，从而在当前插入的记录介质附近提供增加的焦点深度。此外，增加的焦深也将补救与激光源的波长变化相关的透镜焦距变化的问题。因为这些波长的一些变化突然发生，所以这也是自动对焦跟踪系统的有限性能过度负担的情况。

2. 发明授权

US06466371B1 Diffractive lens with gratings modified to offset effects caused by holding the lens at an angle with respect to a light source 失效
$Diffractive lens with gratings modified to offset effects caused by holding the lens at an angle with respect to a light source$
标题翻译：具有光栅的衍射透镜被修改以抵消通过将透镜相对于光源保持一定角度而引起的影响
公开(公告)号：US06466371B1
公开(公告)日：2002-10-15
申请号：US09491714
申请日：2000-01-27
申请人： Walter Daschner , Bernard Kress
发明人： Walter Daschner , Bernard Kress
IPC分类号： G02B2744
CPC分类号： G02B5/1876 , G02B5/188 , G11B7/1353 , G11B7/1374 , G11B7/1381 , G11B11/10543 , Y10S359/90
摘要： A diffractive lens constructed in accordance with the invention comprises a set of bands such that the diffractive gratings in each band are modified. This is done to ensure that even if the lens is tilted (e.g. to prevent light from reflecting off the lens and, introducing distortion into an optical system), the lens continues to focus light onto a small point on a target surface. (The target surface is typically an optical or magneto-optic data recording medium.)
摘要翻译：根据本发明构造的衍射透镜包括一组带，使得每个带中的衍射光栅被修改。这是为了确保即使透镜倾斜（例如以防止光从透镜反射并将失真引入光学系统），透镜继续将光聚焦到目标表面上的小点上。（目标表面通常是光学或磁光数据记录介质。）

3. 发明申请

US20080141287A1 Out-of-round coder 失效
标题翻译：外置编码器
公开(公告)号：US20080141287A1
公开(公告)日：2008-06-12
申请号：US11807719
申请日：2007-05-30
申请人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Mandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Mandiaye Ndao , Bernard Kress
IPC分类号： G01B11/00
CPC分类号： G01D5/24428 , G01D5/24476
摘要： Device for detection of out-of-round on an angle sensor including a disc supporting angle coding means rigidly attached to a rotating shaft and at least one fixed optical system including a coherent light source emitting a beam interfering with the angle coding means of the support disc in order to code its angular position, means for collimation of the said beam before interference and a photodetector of the modulated beam after interference. In accordance with one possibility, it includes two optical systems arranged 90° from each other.Alternatively, there is only one optical system and the disc includes a circular track radially centred in at least one of its angular positions relative to the incident collimated light beam, and a radially orientated photodetector.
摘要翻译：用于检测角度传感器的装置，该角度传感器包括刚性附接到旋转轴的盘支撑角度编码装置和至少一个固定光学系统，所述至少一个固定光学系统包括发射与所述支撑件的角度编码装置干涉的光束的相干光源光盘，以便对其角位置进行编码，用于在干涉之前准直所述光束的装置和干涉后的调制光束的光电检测器。根据一种可能性，它包括彼此成90°布置的两个光学系统。或者，仅有一个光学系统，并且盘包括相对于入射的准直光束在其至少一个角位置中径向中心的圆形轨道和径向取向的光电检测器。

4. 发明申请

US20080106995A1 Optical rotation counter 失效
标题翻译：光旋转计数器
公开(公告)号：US20080106995A1
公开(公告)日：2008-05-08
申请号：US11809336
申请日：2007-05-31
申请人： Laurent Tupinier , Olivier R. Marroux , Mandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier R. Marroux , Mandiaye Ndao , Bernard Kress
IPC分类号： G11B7/00
CPC分类号： G01D5/3473
摘要： Optical rotation counter associated with a rotary disc of an angle sensor provided with means for coding the angular position of the disc, including at least one fixed source of coherent light emitting a light beam, a diaphragm and a support moved by the rotation of the coding disc. On its face facing the incident beam, the support includes at least one cell for coding its displacement orientated in the direction of the said displacement and generates an optical code by interference with the incident light beam, the said optical code being readable after interference on at least one photodetector.
摘要翻译：与旋转盘相关联的光旋转计数器，其设置有用于对盘的角位置进行编码的装置，该装置包括至少一个发射光束的相干光的固定源，通过编码的旋转移动的振动膜和支撑光盘。在其面对入射光束的表面上，支撑体包括至少一个用于对其位移方向进行编码的单元，并且通过与入射光束的干涉产生光学代码，所述光学代码在干扰之后可读取至少一个光电检测器。

5. 发明授权

US07751058B2 Optical rotation counter 失效
标题翻译：光旋转计数器
公开(公告)号：US07751058B2
公开(公告)日：2010-07-06
申请号：US11809336
申请日：2007-05-31
申请人： Laurent Tupinier , Olivier R. Marroux , Mandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier R. Marroux , Mandiaye Ndao , Bernard Kress
IPC分类号： G01B11/02 , G01B9/02 , G01D5/34 , G01D5/36
CPC分类号： G01D5/3473
摘要： Optical rotation counter associated with a rotary disc of an angle sensor provided with means for coding the angular position of the disc, including at least one fixed source of coherent light emitting a light beam, a diaphragm and a support moved by the rotation of the coding disc. On its face facing the incident beam, the support includes at least one cell for coding its displacement orientated in the direction of the said displacement and generates an optical code by interference with the incident light beam, the said optical code being readable after interference on at least one photodetector.
摘要翻译：与旋转盘相关联的光旋转计数器，其设置有用于对盘的角位置进行编码的装置，该装置包括至少一个发射光束的相干光的固定源，通过编码的旋转移动的振动膜和支撑光盘。在其面对入射光束的表面上，支撑体包括至少一个用于编码其沿着所述位移方向定向的位移的单元，并通过干涉入射光束产生光学代码，所述光学代码在干扰之后是可读的至少一个光电检测器。

6. 发明授权

US07687766B2 Out-of-round coder 失效
标题翻译：外置编码器
公开(公告)号：US07687766B2
公开(公告)日：2010-03-30
申请号：US11807719
申请日：2007-05-30
申请人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Mandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Mandiaye Ndao , Bernard Kress
IPC分类号： G01D5/34
CPC分类号： G01D5/24428 , G01D5/24476
摘要： Device for detection of out-of-round on an angle sensor including a disc supporting angle coding means rigidly attached to a rotating shaft and at least one fixed optical system including a coherent light source emitting a beam interfering with the angle coding means of the support disc in order to code its angular position, means for collimation of the said beam before interference and a photodetector of the modulated beam after interference. In accordance with one possibility, it includes two optical systems arranged 90° from each other.Alternatively, there is only one optical system and the disc includes a circular track radially centered in at least one of its angular positions relative to the incident collimated light beam, and a radially orientated photodetector.
摘要翻译：用于检测角度传感器的装置，该角度传感器包括刚性附接到旋转轴的盘支撑角度编码装置和至少一个固定光学系统，所述至少一个固定光学系统包括发射与所述支撑件的角度编码装置干涉的光束的相干光源光盘，以便对其角位置进行编码，用于在干涉之前准直所述光束的装置和干涉后的调制光束的光电检测器。根据一种可能性，它包括彼此成90°布置的两个光学系统。或者，仅有一个光学系统，并且盘包括相对于入射的准直光束在其至少一个角位置中径向中心的圆形轨道和径向取向的光电检测器。

7. 发明申请

US20080100849A1 OPTICAL ENCODER WITH DIFFRACTIVE ENCODER MEMBER 失效
标题翻译：具有差分编码器成员的光学编码器
公开(公告)号：US20080100849A1
公开(公告)日：2008-05-01
申请号：US11969866
申请日：2008-01-04
申请人： Christopher Chang , Bernard Kress
发明人： Christopher Chang , Bernard Kress
IPC分类号： G01B9/02
CPC分类号： G01D5/3473 , G01D5/34792
摘要： An optical encoder uses an encoder member with a digital diffractive track to optically manipulate an incident beam of light into manipulated beams of light, which are detected as spots of light that represent a digital absolute position value of the encoder member.
摘要翻译：光学编码器使用具有数字衍射轨迹的编码器构件将入射光束光学地操纵成操纵的光束，其被检测为表示编码器构件的数字绝对位置值的光点。

8. 发明授权

US08093546B2 Out-of-round coder 有权
标题翻译：外置编码器
公开(公告)号：US08093546B2
公开(公告)日：2012-01-10
申请号：US12698626
申请日：2010-02-02
申请人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Nandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier R. Marroux , Johann Michel , Paul-Antoine Tritschler , Nandiaye Ndao , Bernard Kress
IPC分类号： G01D5/34
CPC分类号： G01D5/24428 , G01D5/24476
摘要： An angle sensor for detecting an out-of-round condition includes a disc supporting angle coder rigidly attached to a rotating shaft and at least one fixed optical system including a coherent light source emitting a beam interfering with the angle coder of the support disc in order to code its angular position, a collimator of the said beam before interference and a photo detector of the modulated beam after interference. In one embodiment, two optical systems arranged 90° from each other are employed. An alternative embodiment includes one optical system and the disc includes a circular track radially centred in at least one of its angular positions relative to the incident collimated light beam, and a radially orientated photo detector.
摘要翻译：用于检测不完整状态的角度传感器包括刚性地附接到旋转轴的盘支撑角度编码器和包括相干光源的至少一个固定光学系统，该相干光学系统按顺序发射干扰支撑盘的角度编码器的光束对其角位置进行编码，干涉前的所述光束的准直器和干涉后的调制光束的光电检测器。在一个实施例中，采用彼此成90°布置的两个光学系统。替代实施例包括一个光学系统，并且盘包括相对于入射准直光束在其至少一个角位置中径向中心的圆形轨道，以及径向取向的光电检测器。

9. 发明申请

US20080074672A1 High Resolution position coder 审中-公开
标题翻译：高分辨率位置编码器
公开(公告)号：US20080074672A1
公开(公告)日：2008-03-27
申请号：US11809227
申请日：2007-05-31
申请人： Laurent Tupinier , Olivier Marroux , Johann Michel , Mandiaye Ndao , Bernard Kress
发明人： Laurent Tupinier , Olivier Marroux , Johann Michel , Mandiaye Ndao , Bernard Kress
IPC分类号： G01B9/021
CPC分类号： G01D5/38 , G01D5/34776
摘要： Coder of position of a first element in displacement relatively to a second element, the latter including an optical system provided with at least one coherent light source emitting a beam intended to interfere, after collimation in a diaphragm, with the second element and at least one photodetector with contiguous cells in a line for detection of the light signal after interference. The second element includes a succession of primary coding cells provided with diffraction holograms each defining therein a single location, the cells interfering in succession with the light beam in the course of their relative displacement. The diffracted signal is sent to the photodetector or photodetectors for measurement of absolute position. The coder includes a series of secondary coding cells provided with diffraction holograms interfering successively with the light beam. The said cells are provided with an identical hologram diffracting the incident light into aligned diffraction light spots, the said hologram including a modulation, in the form of a stripe or a plurality of identical stripes arranged in parallel, which modulates the diffracted signal by orientating it at each instant perpendicularly to the tangent to the said stripe progressively as the collimated beam is displaced relatively to the cell, the position of the centre of the diffraction spot of order 0 remaining unchanged. At least one relative position photodetector is provided so orientated as to correspond to the displacement of a diffraction light spot produced by the secondary coding cell.
摘要翻译：相对于第二元件位移的第一元件的位置编码器，后者包括设置有至少一个相干光源的光学系统，该至少一个相干光源发射光束，该光束在光阑准直之后与第二元件和至少一个具有连续单元的光电检测器，用于检测干涉后的光信号。第二个元件包括一系列具有衍射全息图的主编码单元，每个衍射全息图在其中限定单个位置，该单元在其相对位移过程中与光束相继干涉。衍射信号被发送到光电检测器或光电检测器以测量绝对位置。编码器包括一系列辅助编码单元，其具有与光束连续干涉的衍射全息图。所述单元设置有将入射光衍射成对准的衍射光斑的相同的全息图，所述全息图包括以条状或多个平行排列的相同条纹的形式的调制，其通过使衍射信号定向来调制衍射信号当准直光束相对于单元移位时，在垂直于所述条纹的切线垂直的每个时刻，级数为0的衍射光斑的中心位置保持不变。至少一个相对位置光电检测器被设置为对应于由次级编码单元产生的衍射光斑的位移。

10. 发明授权

US5730941A Device for the optical inspection of a fluid, especially for hematological analyses 失效
标题翻译：用于光学检查流体的装置，特别是用于血液分析
公开(公告)号：US5730941A
公开(公告)日：1998-03-24
申请号：US653325
申请日：1996-05-24
申请人： Didier Lefevre , Bernard Kress
发明人： Didier Lefevre , Bernard Kress
IPC分类号： G01N21/64 , G01N15/14 , G01N21/47 , G01N33/49
CPC分类号： G01N15/14
摘要： It includes a measuring space (8) comprising a constrained passage (15) for the fluid, a monochromatic light source (31) delivering a beam (F1) to optical elements (6, 32, 34) including a first diffractive optical element (32) having a diffractive network (38) predetermined as a function, on the one hand, of the characteristics of the source and, on the other hand, of chosen geometrical and spectral characteristics for the illumination of the constrained passage, and suitable for inducing fluorescence of at least part of the fluid, and first (19-20), second (34-36) and third (40) optoelectronic elements intended to collect, respectively, a transmitted beam, fluorescence and a diffracted beam, and suitable for delivering to an analysis unit (24) signals relating to the contents of the beams. At least one of the beams emanates from a second diffractive optical element (42) having a second diffractive optical network which is predetermined as a function of a frequential and geometrical transfer function of at least one of the optoelectronic elements.
摘要翻译：它包括测量空间（8），其包括用于流体的约束通道（15），将光束（F1）传送到包括第一衍射光学元件（32,32）的光学元件（6,32,34）的单色光源（31））具有作为功能的预定的衍射网络（38），一方面是源的特性，另一方面，对于受限通道的照明的选择的几何和光谱特性，并且适于诱导荧光至少部分流体和第一（19-20），第二（34-36）和第三（40）光电子元件，分别收集透射束，荧光和衍射光束，并且适于传送到分析单元（24）与波束的内容有关的信号。至少一个光束从具有第二衍射光网络的第二衍射光学元件（42）发出，该第二衍射光学网络被预定为至少一个光电元件的频率和几何传递函数的函数。

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