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1. 发明公开

EP4445191A1 DIFFRACTION GRATING, DIFFRACTIVE WAVEGUIDE COMBINER AND HEADSET FOR AUGMENTED REALITY OR VIRTUAL REALITY DISPLAY 审中-实审
公开(公告)号：EP4445191A1
公开(公告)日：2024-10-16
申请号：EP22834925.4
申请日：2022-12-08
申请人： SNAP INC
发明人： CRAI, Alexandra , PHELAN, Ciaran Padraic
IPC分类号： G02B5/18 , G02B27/00 , G02B27/01
CPC分类号： G02B5/1823 , G02B5/1861 , G02B27/0172 , G02B2027/017420130101 , G02B2027/01220130101 , G02B2027/012520130101 , G02B27/0081

2. 发明授权

EP1831736B2 GITTERBILD ZUR DARSTELLUNG VON ECHTFARBBILDERN UND VERFAHREN ZU SEINER HERSTELLUNG 有权转让
标题翻译：用于表示真实图片的网格图片及其制作方法
公开(公告)号：EP1831736B2
公开(公告)日：2017-11-22
申请号：EP05820561.8
申请日：2005-12-07
申请人： Giesecke & Devrient GmbH
发明人： KAULE, Wittich , RAUSCHER, Wolfgang , DICHTL, Marius
IPC分类号： G02B5/18 , B42D15/00
CPC分类号： G02B5/1819 , B42D25/29 , G02B5/1823 , G02B5/1842

3. 发明公开

EP3084509A1 IMPROVEMENTS IN AND RELATING TO WAVEGUIDES 有权
标题翻译：改进技术以及与纤维
公开(公告)号：EP3084509A1
公开(公告)日：2016-10-26
申请号：EP14820800.2
申请日：2014-12-12
申请人： BAE Systems PLC
发明人： SIMMONDS, Michael David , FERNS, Anthony Robert
IPC分类号： G02B27/00 , G02B5/18 , F21V8/00 , G02B27/42 , G02B6/124
CPC分类号： G02B5/1823 , G02B6/0016 , G02B6/0035 , G02B6/34 , G02B27/0081 , G02B27/0172 , G02B27/4272 , G02B2027/0125
摘要： A waveguide for a display apparatus comprising a planar optical waveguide part (20) for guiding light to be displayed, an input diffraction grating (21) to diffract received light (7) along the optical waveguide part for guiding thereby, an intermediate diffraction grating (22) to receive diffracted light from the input diffraction grating and to expand the received light in a first dimension by diffraction (8), and an output diffraction grating (23) to receive the expanded light and to output the received expanded light (10) from the optical waveguide part by diffraction for display. The input diffraction grating is positioned so as to be located wholly within the geographical area of the intermediate grating, and the grating vectors of the input diffraction grating and the intermediate diffraction grating are oriented in different respective directions.

4. 发明公开

EP2662711A4 METHOD FOR MANUFACTURING MULTI-DIMENSIONAL TARGET WAVEGUIDE GRATING AND VOLUME GRATING WITH MICRO-STRUCTURE QUASI-PHASE-MATCHING 失效
标题翻译：用于生产多维目标纤维网格及与微结构的准相位平衡容积GRILLE
公开(公告)号：EP2662711A4
公开(公告)日：2016-05-18
申请号：EP11855221
申请日：2011-12-30
申请人： UNIV NANJING
发明人： CHEN XIANGFEI , SHI YUECHUN
IPC分类号： G02B5/18 , G02B6/122
CPC分类号： H01S5/2031 , B82Y20/00 , G02B5/1823 , G02B5/1857 , G02B6/1225
摘要： guide grating and volume grating with micro-structure quasi-phass-matching. An ordinary waveguide grating is used as a seed grating, and on this basis, a two-dimensional or three-dimensional sampling structure modulated with a refractive index, that is, a sampling grating, is formed. The sampling grating comprises multiple shadow gratings, and one of the shadow gratings is selected as a target equivalent grating. A sampled grating comprises Fourier components in many orders, that is, shadow grating, a corresponding grating wave vector is [Formula 1], and the grating profile of all the shadow gratings changes with the sampling structure [Formula 2]. In a case where a seed grating wave vector [Formula 3] and a required two-dimensional or three-dimensional grating wave vector do not match, a certain Fourier periodic structure component of the Fourier components of the sampling structure is used to compensate for the wave vector mismatch. The manufacturing method many be applied to design and manufacture a multi-dimensional target waveguide grating and volume grating for any grating profile, and may simplify the grating manufacturing process and also make possible a variety of grating-based photon devices.

5. 发明公开

EP2544038A3 Laminated diffractive optical element and optical system 审中-公开
$Laminated diffractive optical element and optical system$
标题翻译：一种层叠光学折射元件和光学系统
公开(公告)号：EP2544038A3
公开(公告)日：2013-03-13
申请号：EP12187153.7
申请日：2010-10-05
申请人： Canon Kabushiki Kaisha
发明人： Saito, Kenichi , Inoguchi, Kazutaka
IPC分类号： G02B27/00 , G02B27/42 , G02B27/44 , G02B5/18
CPC分类号： G02B27/44 , G02B5/1823 , G02B27/0037 , G02B27/4211 , G02B27/4272
摘要： The laminated diffractive optical element includes plural diffraction gratings 21, 22 and 23 laminated with each other, the respective diffraction gratings being formed of a same light-transmissive material. In the element, reflective films are formed on grating surfaces 11 and 12 of the respective diffraction gratings, each of the reflective films being disposed between the diffraction gratings. Each of the reflective films reflects light in a specific wavelength range and transmits light in a wavelength range different from the specific wavelength range, the specific wavelength ranges of the respective reflective films being different from each other. The grating surfaces of the respective diffraction gratings are formed in shapes different from each other according to the specific wavelength ranges corresponding to the respective reflective films.

6. 发明公开

EP2386884A1 Device for reading optical data supports 有权
标题翻译： DatenrägerGerätzum Lesen optischer
公开(公告)号：EP2386884A1
公开(公告)日：2011-11-16
申请号：EP11165293.9
申请日：2011-05-09
申请人： Istituto Poligrafico e Zecca dello Stato S.p.A.
发明人： Ghisa, Giuseppe , Casini, Michela
IPC分类号： G02B5/32 , G06K7/10 , G06K19/16
CPC分类号： G06K19/16 , G02B5/1823 , G02B5/32 , G02B27/4238 , G06K7/10
摘要： A reading apparatus (10) of an optical data carrier (1) bearing a first (2) and a second (3) diffractive structure obtained on overlapped levels, wherein the second structure (3) bears an information diffractive code and the first structure (2) bears a control diffractive code apt to act as a read key for said information code, the construction being such that, when the data carrier (1) is exposed to a substantially monochromatic beam of electromagnetic waves, each structure deviates such incident beam into one or more diffracted beams spatially independent from the one or more diffracted beams originated by the other structure, which apparatus (10) comprises:
- An emitting unit (11), apt to emit a substantially monochromatic beam of electromagnetic waves apt to be deviated by the diffractive structures;
- A first detecting unit (12), for detecting the control code of the first diffractive structure (2) of the data carrier (1), comprising first detecting means;
- A second detecting unit (13), for detecting the information code of the other diffractive structure (3) of the data carrier (1), comprising second detecting means arranged at a position distinct from that of the first detecting means;
- a processing unit (15), apt to verify the authenticity of the data carrier (1) according to the detections of said detecting units (12, 13); and
- means (150) selectively programmable with at least one position parameter related to a linear and/or angular position of the first diffractive structure (2) and at least one application parameter representative of the specific application of the data carrier (1) bearing the diffractive structures (2, 3) ( Fig. 2 ).
摘要翻译：一种光学数据载体（1）的读取装置（10），其具有在重叠的水平上获得的第一（2）和第二（3）衍射结构，其中所述第二结构（3）承载信息衍射码和所述第一结构 2）具有适于作为所述信息代码的读取键的控制衍射代码，该结构使得当数据载体（1）暴露于基本上单色的电磁波束时，每个结构将这种入射光束偏离成一个或多个衍射光束在空间上独立于由另一结构产生的一个或多个衍射光束，该装置（10）包括： - 发射单元（11），其易于发射易于偏离的基本上单色的电磁波束衍射结构; - 第一检测单元（12），用于检测数据载体（1）的第一衍射结构（2）的控制码，包括第一检测装置; - 第二检测单元（13），用于检测数据载体（1）的另一个衍射结构（3）的信息码，包括布置在与第一检测装置不同的位置的第二检测装置; - 处理单元（15），用于根据所述检测单元（12,13）的检测来验证数据载体（1）的真实性; 以及 - 具有至少一个与所述第一衍射结构（2）的线性和/或角位置有关的位置参数的至少一个应用参数（150），所述至少一个位置参数代表所述数据载体（1）轴承的特定应用的至少一个应用参数衍射结构（2,3）（图2）。

7. 发明公开

EP1162492A3 Diffractive optical element 审中-公开
$Diffractive optical element$
标题翻译：衍射光学元件
公开(公告)号：EP1162492A3
公开(公告)日：2005-01-05
申请号：EP01113833.6
申请日：2001-06-06
申请人： CANON KABUSHIKI KAISHA
发明人： Sato, Hideki
IPC分类号： G02B27/44
CPC分类号： G02B27/4205 , G02B5/1823 , G02B5/1852 , G02B5/1871 , G02B5/1876
摘要： A diffractive optical element (1) includes a first diffractive optical part (2) having a phase type diffractive grating, and a second diffractive optical part (3) having a phase type diffractive grating formed of a material differing from that of the first diffractive optical part. The first diffractive optical part and the second diffractive optical part are disposed in proximity to each other with an air layer (4). Each of the first diffractive optical part and the second diffractive optical part has a mark (5) for aligning them with the optical effective areas thereof.
摘要翻译：衍射光学元件（1）包括具有相位型衍射光栅的第一衍射光学部件（2）和具有相位型衍射光栅的第二衍射光学部件（3），所述相位型衍射光栅由不同于第一衍射光学部分。第一衍射光学部件和第二衍射光学部件通过空气层（4）彼此靠近布置。第一衍射光学部件和第二衍射光学部件中的每一个具有用于将它们与其光学有效区域对准的标记（5）。

8. 发明公开

EP1308754A2 Diffractive optical element and optical system having the same 审中-公开
$Diffractive optical element and optical system having the same$
标题翻译： Diffraktives Optisches Element und Verwendung in optischem System
公开(公告)号：EP1308754A2
公开(公告)日：2003-05-07
申请号：EP02028614.2
申请日：1998-08-13
申请人： CANON KABUSHIKI KAISHA
发明人： Nakai, Takehiko
IPC分类号： G02B5/18 , G02B27/44
CPC分类号： G02B27/4211 , G02B5/1823 , G03H2240/23
摘要： In a diffractive optical element, which is formed by laminating at least three layers of diffraction gratings made of at least three kinds of materials which differ in dispersion, at least three design wavelengths are set.
摘要翻译：在通过层叠由至少三种不同色散的材料制成的至少三层衍射光栅形成的衍射光学元件中，设置至少三个设计波长。

9. 发明授权

EP0876629B1 SURFACE PATTERN 失效
标题翻译：表面图案
公开(公告)号：EP0876629B1
公开(公告)日：2002-08-14
申请号：EP96922815.4
申请日：1996-06-17
申请人： OVD Kinegram AG
发明人： STAUB, René , TOMPKIN, Wayne, Robert
IPC分类号： G02B5/18
CPC分类号： G02B5/1823 , Y10S283/902

10. 发明公开

EP1058134A1 Optical instrument and optical element thereof 有权
标题翻译： Optisches Instrument und optisches Elementdafür
公开(公告)号：EP1058134A1
公开(公告)日：2000-12-06
申请号：EP99304311.6
申请日：1999-06-02
申请人： FREEMAN, Robin John
发明人： FREEMAN, Robin John
IPC分类号： G02B5/18 , G02B27/44 , G02B27/00
CPC分类号： G02B27/0081 , G02B5/1823 , G02B27/4205
摘要： An optical instrument is described in which a diffractive element (25) is located at a focal or image plane (3) of the instrument and the diffractive element (25) is effective to produce an array (6) of a plurality of exit pupils at a viewing position for the instrument and thereby to form an enlarged exit pupil for the instrument. The diffractive element is formed to provide a plurality greater than two of optical diffractive gratings each being disposed angularly relative to others of the plurality of optical diffractive gratings.
摘要翻译：描述了一种光学仪器，其中衍射元件（25）位于仪器的焦点或像平面（3）处，并且衍射元件（25）有效地产生多个出射瞳孔的阵列（6）用于仪器的观察位置，从而形成用于仪器的放大出射光瞳。衍射元件被形成为提供多于两个的光学衍射光栅，每个光学衍射光栅相对于多个光学衍射光栅中的其它光栅衍射光栅相对角度地设置。

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