公开(公告)号：US10073327B2

公开(公告)日：2018-09-11

申请号：US15466974

申请日：2017-03-23

申请人： CANON KABUSHIKI KAISHA

发明人： Rie Ishimatsu ,  Kazuhiko Momoki ,  Yutaka Yamaguchi

IPC分类号： H04N9/31 ,  G03B17/56 ,  G02B5/30 ,  G02F1/139

CPC分类号： G03B17/565 ,  G02B5/3058 ,  G02B5/3083 ,  G02F1/1393

摘要： An optical apparatus includes a first retardation plate giving a retardation between polarization components in slow and fast axis directions, a second retardation plate changing a relative retardation between polarization components in slow and fast axis directions, and a polarizer extracting a polarization component guided to the image pickup element. The first and second retardation plates, and the polarizer are disposed in order from an object side. The slow or fast axis direction of the first retardation plate is parallel to a polarization direction of the polarization component extracted by the polarizer. The slow or fast axis direction of the second retardation plate is inclined by 45 degrees with respect to the polarization direction. When a design wavelength is λ, a phase change amount being a difference between maximum and minimum values of the relative retardations is in a range from 2λ/5 to 3λ/5 both inclusive.

公开(公告)号：US10073191B2

公开(公告)日：2018-09-11

申请号：US14630080

申请日：2015-02-24

申请人： Massachusetts Institute of Technology

发明人： Yichen Shen ,  Dexin Ye ,  Ivan Celanovic ,  Steven G. Johnson ,  John D. Joannopoulos ,  Marin Soljacic

IPC分类号： G02B1/00 ,  G02B5/30 ,  G02B5/26 ,  G02F1/01 ,  G02B5/20

CPC分类号： G02B1/005 ,  G02B5/20 ,  G02B5/26 ,  G02B5/3066 ,  G02B5/3083 ,  G02F1/0131 ,  G02F1/0147

摘要： A filter to transmit incident radiation at a predetermined incidence angle includes a plurality of photonic crystal structures disposed substantially along a surface normal direction of the filter. The photonic crystal structure includes a multilayer cell that comprises a first layer having a first dielectric permittivity, and a second layer having a second dielectric permittivity different from the first dielectric permittivity. The first layer and the second layer define a Brewster angle substantially equal to the predetermined incidence angle based on the first dielectric permittivity and the second permittivity. Each photonic crystal structure in the plurality of photonic crystal structures defines a respective bandgap, and the respective bandgaps of the plurality of photonic crystal structures, taken together, cover a continuous spectral region of about 50 nm to about 100 mm.

公开(公告)号：US20180246340A1

公开(公告)日：2018-08-30

申请号：US15969761

申请日：2018-05-02

申请人： NIKON CORPORATION

发明人： Akinobu Suga

IPC分类号： G02B27/48 ,  G02B5/30 ,  G03B21/14 ,  G03B21/40 ,  G03B21/20 ,  H04N9/31 ,  G02B27/28

CPC分类号： G02B27/48 ,  G02B5/3083 ,  G02B27/283 ,  G02B27/286 ,  G03B21/14 ,  G03B21/2033 ,  G03B21/2073 ,  G03B21/208 ,  G03B21/40 ,  H04N9/3161

摘要： A speckle reducing device includes: a polarization splitter element with a polarization splitter portion that splits incident light into first and second light containing a first and a second component respectively, which outputs the first and the second light along different directions; a first reflecting member that reflects the first light to reenter the polarization splitter element; a first conversion member disposed between the first reflecting member and the polarization splitter element, which converts the first light to third light containing the second component; a second reflecting member that reflects the third light to reenter the polarization splitter element; and a second conversion member disposed between the second reflecting member and the polarization splitter element, which converts the third light to fourth light containing the first component, wherein: the polarization splitter element outputs the second and the fourth light along one direction.

公开(公告)号：US10061129B2

公开(公告)日：2018-08-28

申请号：US15058312

申请日：2016-03-02

申请人： David Kessler

发明人： David Kessler

IPC分类号： G02B27/01 ,  G02B5/30 ,  G02F1/1335

CPC分类号： G02B27/0172 ,  G02B5/3083 ,  G02B27/0176 ,  G02B2027/0123 ,  G02B2027/0127 ,  G02B2027/013 ,  G02B2027/0132 ,  G02B2027/015 ,  G02F1/133528 ,  G02F2001/133548 ,  G02F2001/13355

摘要： A display apparatus has a birefringent ocular having a first index of refraction for light having a first polarization axis and a second index of refraction, lower than the first index by at least 0.1, for light having a second polarization axis that is orthogonal to the first polarization axis, wherein the birefringent ocular defines an eye box for a viewer. An image source emits image-bearing light having the first polarization axis. A polarization beam splitter is disposed to reflect the image-bearing light of the first polarization axis toward the birefringent ocular and further disposed to transmit, from an object scene, light having the second polarization axis.

公开(公告)号：US10061068B1

公开(公告)日：2018-08-28

申请号：US15530779

申请日：2017-02-27

申请人： J.A. WOOLLAM CO., INC.

发明人： Craig M. Herzinger ,  Ping He ,  Jeffrey S. Hale

IPC分类号： G02B5/30 ,  G02B7/00 ,  G02B17/00

CPC分类号： G02B27/286 ,  G02B5/04 ,  G02B5/3083 ,  G02B17/006

摘要： A substantially achromatic multiple element compensator system for use in a wide spectral range, (for example 190-1700 nm), rotating compensator spectroscopic ellipsometer or polarimeter or the like system, which does not require external surface coatings at locations whereat total internal reflections occur. Multiple total internal reflections enter retardance into an entered beam of electromagnetic radiation. Berek-type retarders on both input and output sides of the multiple elements are oriented to minimize changes in the net retardance vs. wavelength via adjustment of Berek-type retarders. Berek-type retarders.

公开(公告)号：US10053424B2

公开(公告)日：2018-08-21

申请号：US15190863

申请日：2016-06-23

申请人： SAMSUNG ELECTRONICS CO., LTD.

发明人： Dmitry Androsov ,  Changki Kim ,  Masashi Tsuji ,  Hyunseok Choi

IPC分类号： C07C69/82 ,  C07D209/50 ,  C08G64/12 ,  C09D169/00 ,  G02B5/30 ,  G02F1/13363 ,  H01L51/52 ,  B32B27/06

CPC分类号： C07D209/50 ,  B32B7/04 ,  B32B9/04 ,  B32B9/041 ,  B32B9/045 ,  B32B15/043 ,  B32B15/09 ,  B32B15/20 ,  B32B17/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/18 ,  B32B27/281 ,  B32B27/285 ,  B32B27/286 ,  B32B27/288 ,  B32B27/302 ,  B32B27/304 ,  B32B27/306 ,  B32B27/308 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  B32B27/365 ,  B32B27/38 ,  B32B27/42 ,  B32B2250/05 ,  B32B2307/202 ,  B32B2307/204 ,  B32B2307/4023 ,  B32B2307/4026 ,  B32B2307/41 ,  B32B2307/412 ,  B32B2307/416 ,  B32B2307/418 ,  B32B2307/42 ,  B32B2307/704 ,  B32B2307/706 ,  B32B2307/7244 ,  B32B2307/73 ,  B32B2307/732 ,  B32B2457/202 ,  B32B2457/206 ,  B32B2551/00 ,  C08G64/045 ,  C08G64/12 ,  C08G64/24 ,  C09D169/00 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/13363 ,  H01L51/5281 ,  C08L69/00

摘要： A monomer represented by Chemical Formula 1: wherein in Chemical Formula 1, X1, X2, L1, Y1, Y2, R1 to R9, n1, and n2 are the same as described in the detailed description.

公开(公告)号：US20180231788A1

公开(公告)日：2018-08-16

申请号：US15956141

申请日：2018-04-18

申请人： Deutsches Krebsforschungszentrum

发明人： Johann Engelhardt

IPC分类号： G02B27/09 ,  G02B21/00 ,  G02B21/06 ,  G02B27/42 ,  G02B5/30

CPC分类号： G02B27/0927 ,  G01N2021/6419 ,  G02B5/3083 ,  G02B21/0032 ,  G02B21/0076 ,  G02B21/06 ,  G02B27/42

摘要： A segmented chromatic phase plate comprises at least three stacks. The three stacks are arranged around and stacked along a main axis, and have same overall heights. Each stack comprises at least two plane-parallel optical flats of different materials. The materials and the thicknesses of the optical flats are selected such that optical path lengths of light of a first wavelength passing through the different stacks along the main axis differ by integer multiples of the first wavelength, whereas optical path lengths of light of a second wavelength differ by integer multiples plus defined fractions of the second wavelength. The materials of the at least two optical flats have different refractive indices for both the first and second wavelengths; and derivatives of the differences between the optical path lengths with respect to wavelength are zero at at least one of the first and second wavelengths.

公开(公告)号：US20180231786A1

公开(公告)日：2018-08-16

申请号：US15954712

申请日：2018-04-17

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Andrew J. Ouderkirk ,  Erin A. McDowell ,  Timothy L. Wong

IPC分类号： G02B27/01 ,  G02B5/30 ,  G02B6/10 ,  G02B17/00 ,  G02B27/28

CPC分类号： G02B27/0172 ,  G02B5/3083 ,  G02B6/0046 ,  G02B6/0056 ,  G02B6/10 ,  G02B6/105 ,  G02B17/004 ,  G02B27/283 ,  G02B2027/0118 ,  G02B2027/012 ,  G02B2027/0125 ,  G02B2027/013 ,  G02B2027/0132 ,  G02B2027/0178

摘要： An image combiner, also referred to as a combiner optic, of a near-eye display system or the like transmits enough light so a user can see remote objects in a “world view”, while also reflecting enough light so the user can simultaneously see a projected image in a “projected” (augmented) view. The disclosed image combiners use two partial reflectors configured to form a wedged reflective cavity. In the display system, light from an imaging device follows a path to the user's eye that includes three reflections in the wedged cavity. By using this capability of the wedged cavity, the combiner optic can have a substantially reduced thickness, and lower profile, than a combiner optic that uses only one partial reflector and only one reflection in the optical path.

公开(公告)号：US20180224702A1

公开(公告)日：2018-08-09

申请号：US15944238

申请日：2018-04-03

申请人： Dai Nippon Printing Co., Ltd.

发明人： Takashi KURODA ,  Seiichi ISOJIMA ,  Norinaga NAKAMURA

IPC分类号： G02F1/13363 ,  G02F1/1335 ,  G02B1/10 ,  G02B5/30

CPC分类号： G02F1/133634 ,  G02B1/10 ,  G02B5/3083 ,  G02F1/133528 ,  G02F2202/40 ,  G02F2413/12 ,  Y10T428/105

摘要： The present invention aims to provide a liquid crystal display device highly suppressing occurrence of rainbow interference pattern in displayed images. The present invention is a liquid crystal display device including: a back light source, a liquid crystal cell, a color filter, a polarizer, and a polarizer protective film arranged in the stated order, wherein the polarizer protective film has a retardation of not less than 6000 nm, and a difference (nx−ny) of not less than 0.05 between a refractive index (nx) in a slow axis direction that is a highest refractive index direction and a refractive index (ny) in a fast axis direction that is orthogonal to the slow axis direction, and an absorption axis of the polarizer and the slow axis of the polarizer protective film are arranged to form an angle within a range of 0°±30° or 90°±30°.

公开(公告)号：US20180217392A1

公开(公告)日：2018-08-02

申请号：US15125192

申请日：2016-07-12

申请人： Wuhan China Star Optoelectronics Technology Co., Ltd.

发明人： Chang XIE

IPC分类号： G02B27/22 ,  G02B1/14 ,  G02B1/08 ,  G02F1/1335 ,  G02B5/30 ,  G02B3/12

CPC分类号： G02B27/2242 ,  G02B1/08 ,  G02B1/14 ,  G02B3/12 ,  G02B5/3083 ,  G02B27/225 ,  G02F1/133526 ,  G02F1/13363 ,  G02F1/1339 ,  G02F1/13392 ,  G02F1/29 ,  G02F2001/133638

摘要： The present disclosure provides a liquid crystal lens, comprising: an upper substrate, a lower substrate, and both a liquid crystal layer and spacers disposed between the upper substrate and the lower substrate; wherein the surfaces of the spacers are coated with λ/4 phase retardation film. Via the method of disposing a λ/4 phase retardation film on the surface of the spacers in the present disclosure, a part of light emitting into the λ/4 phase retardation film cannot be reflected from the film and then further decreasing leaking light caused from reflective light of spacers to achieving objects of increasing the contrast of the picture and improving 3D displaying efficiencies.