| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 1 | 偏振性衍射型滤光片及叠层偏振性衍射型滤光片 | CN200580025138.6 | 2005-07-27 | CN1989441A | 2007-06-27 | 佐藤弘昌 |
| 提供一种可以改变透射或者衍射遮光的波长的叠层偏振性衍射型滤光片。该偏振性衍射型滤光片是有2个以上不同的峰值波长的光入射，同时利用衍射来遮去这2个光之中至少1个峰值波长的光，而其它的峰值波长的光发生透射，在透明基板(11)、(13)上，形成构成衍射光栅的周期性的凹凸部(12)，同时向凹凸部(12)填充光学构件的液晶性材料，从而构成衍射型滤光片，叠层2个偏振性衍射型滤光片，使得偏振性衍射型滤光片的衍射光栅的纵向互相垂直，从而构成叠层偏振性衍射型滤光片。 | ||||||
| 2 | 칼러 회절필터 | KR1019800001357 | 1980-03-31 | KR1019830002747B1 | 1983-12-10 | 칼하이인리히놉 |
| 내용없음. | ||||||
| 3 | Diffractive Filter | US11579764 | 2005-05-04 | US20080137194A1 | 2008-06-12 | Alexander Stuck |
| A diffractive optical filter comprises a bulk material (1) having a first refractive index, a volume diffraction grating structure (2,3) having a second, different, refractive index embedded in the bulk material (1), and a mirror (4) formed within or on the surface of the bulk material (1) behind the grating structure (2,3). By placing the mirror (4) immediately behind the grating structure (2,3) the diffractive structure is effectively doubled and consequently the number of effective optically active layer is doubled. Such diffractive optical filters may be used as diffractive identification devices bonded to articles whose authenticity needs to be established. | ||||||
| 4 | 光回折素子及び光学ローパスフィルタ | PCT/JP2012/000938 | 2012-02-13 | WO2012132194A1 | 2012-10-04 | 角張 祐一; 梅澤 康昭; 渡部 賢一 |
透明な基板と、基板の一方の面に形成され、配向方向の第１パターンが基板の主面に沿った第１の方向に周期的に配列された第１配向層とを備え、第１パターンは、第１配向層に含まれる高分子の配向の方向が互いに異なる３以上の小領域が第１の方向に配列されて形成され、３以上の小領域を透過した光の相互の干渉により回折光を生じる光回折素子を発明した。 |
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| 5 | 회절형 컬러 필터를 구비하는 입체 영상 표시 장치 | KR1020160003674 | 2016-01-12 | KR1020170084539A | 2017-07-20 | 신봉수; 김현준; 박준용; 김동욱; 배지현; 심동식; 이성훈; 정재승; 홍석우 |
| 콜리메이팅된 백색광을제공하는백라이트유닛; 상기백라이트유닛에서제공한광을영상정보에따라변조하고복수의시역(viewing zone)에표시하는디스플레이패널;을포함한다. 디스플레이패널은컬러필터상에지향성형성을위한회절소자를형성한회절형컬러필터를포함하여, 입체영상형성의광 효율이높다. | ||||||
| 6 | Black-and-white diffractive subtractive light filter | US671105 | 1976-03-29 | US4062628A | 1977-12-13 | Michael Thomas Gale |
| The disclosed filter provides (1) a high contrast between black and white together with a substantially neutral black and/or (2) a gray-scale color (wavelength) characteristic which is substantially independent of luminosity, and is preferably neutral. Neutral black is achieved when two superimposed, crossed, sine-wave gratings embossed in plastic have different depths which are selected to provide a zero-diffraction-order-light transmittance wavelength selectivity characteristic for any one of the phase gratings which exhibits a minimum zero-diffraction-order-light transmittance at desired different wavelengths in the visible spectrum. A gray scale is achieved by mixing black-manifesting subareas with white-manifesting subareas. | ||||||
| 7 | Diffractive color separation filter | US498763 | 1983-05-27 | US4506949A | 1985-03-26 | Karl H. Knop |
| The use of a rhomboid-shaped phase grating to derive, from polychromatic input light, plus-one, minus-one and zero diffraction order output beams each of a different independent color. | ||||||
| 8 | Fine-line diffractive subtractive color filters | US841057 | 1977-10-11 | US4130347A | 1978-12-19 | Karl Knop |
| Rectangular groove profile grating, having an effective line spacing no greater than 2.mu.m, has grating parameters specified to provide at least acceptable or, preferably, good zero diffraction order color characteristics for subtractive primary colors and green when grating is illuminated with unpolarized white light. | ||||||
| 9 | Polarized diffractive filter and layered polarized diffractive filter | US11627720 | 2007-01-26 | US07623291B2 | 2009-11-24 | Hiromasa Sato |
| A polarized diffractive filter contains cyclic concave/convex portions formed as a diffractive grating on a transparent substrate. The concave portions are filled with an optical material. At least one member selected from the group consisting of i) a material constituting the concave/convex portions, and ii) the optical material filled in the concave portions contains a liquid crystal material. The diffractive grating contains an isotropic material, the isotropic material having a refractive index outside a range from an extraordinary index to an ordinary index of the liquid crystal material. The polarized diffractive filter is capable of receiving light having at least two different peak wavelengths so as to shield light of at least one of the peak wavelengths by diffraction and to transmit the light of the other peak wavelengths. | ||||||
| 10 | COLOR FILTERS FOR SUB-DIFFRACTION LIMIT SENSORS | EP10791660.3 | 2010-04-21 | EP2446475B1 | 2017-08-30 | RISSA, Tero; KOSKINEN, Samu; KALEVO, Ossi; ALAKARHU, Juha |
| 11 | HIGH THROUGHPUT X-RAY DIFFRACTION FILTER SAMPLE HOLDER | EP03728381.9 | 2003-04-10 | EP1497637A1 | 2005-01-19 | ROSSO, Victor, W.; YOUNG, Glen; NOLFO, Joseph; VITEZ, Imre, M.; VENIT, John, J. |
| Multiple samples are prepared in slurry form and deposited through a funnel plate by a multiprobe liquid handler into an array of inserts situated in openings (16) in a housing (B). Each insert (A) has a recess (18) that extends through the insert body (10) and a filter disc (12) situated in the recess to support the sample. The filter is held in place by an annular part (14) which defines a channel providing access to the filter through the lower portion (26) of the recess. A pressure differential is created across each of the filters by attaching a vacuum manifold to the bottom of the housing to simultaneously remove the liquid from each of the samples, leaving the samples in powder form. The housing is then placed in the X-ray diffractometer for sequential analysis of each of the samples, while the samples are situated in the inserts. | ||||||
| 12 | Diffraction grating type optical low-pass filter | JP33700293 | 1993-12-28 | JPH07198921A | 1995-08-01 | KOTAKE TOSHIAKI |
| PURPOSE:To prevent a pattern of a diffraction grating from being reflected in an image senser by setting grating periods in respective directions so that equivalent periods in the horizontal and vertical directions of a grating pattern become a value minimizing a moire pitch. CONSTITUTION:The grating pattern of the diffraction grating is constituted of a two-dimensional grating pattern formed in the oblique direction of a grating surface, and the grating periods in respective directions are set so that the equivalent periods in the horizontal and vertical directions of the grating pattern become the value minimizing the moire pitch. The diffraction grating type low-pass filter is preferred in that the grating period Pg of the diffraction grating where the moire pitch becomes minimum is imparted by the relation Pg/Pi=2/(2m+1) with an image senser pixel pitch Pi. Where, an m is a positive integer. That is, in such a case, a first grating pattern shown by an oblique line rising to left and a second grating pattern shown by the oblique line rising to right are formed, and the first grating pattern is provided with a first grating period Pi, and the second grating pattern is provided with a second grating period P2. | ||||||
| 13 | Method of forming diffraction gratings and optical branching filter elements produced thereby | EP83302132 | 1983-04-15 | EP0092395A3 | 1985-11-21 | Nishiwaki, Yoshikazu Sumitomo Electric Ind. Ltd.; Matsuoka, Shunji Sumitomo Electric Ind. Ltd.; Okamoto, Kenji Sumitomo Electric Ind. Ltd. |
In the formation of a blazed diffraction grating by a holographic process, a laser beam (a) is split into two collimated light beams (b and c) having an increased beam radius, and these beams are reflected onto a substrate (121) coated with a photoresist (122). A photomask (123) having a transparent area (125, 126) is placed on the photoresist (122) at a location corresponding to the desired location of the diffraction grating, and one of the beams is passed through an intermediate mask (118) having a narrow opening (119) to limit the light flux of that beam. A first exposure is made wherein both of the beams are incident on the photoresist (122) through air, thereby to form interference fringes having a clearance width of d. A second exposure is then made wherein the beams are irradiated on the photoresist (122) through a symmetrical transparent member (209, Figure 21) having an isoceles triangular cross-section, thereby producing interference fringes having a clearance width of d/2. The ratio between the exposure energies in the first and second exposures is made equal to the ratio between the first and second terms of a Fourier series obtained by expanding the periodical function of the waveform of the blazed diffraction grating. This method is used to form an optical branching filter element which comprises a substrate (301) and a waveguide (3021 provided on the substrate and made of a material which is cacable of reversibly changing its refractive index on application of light. A diffraction grating (307) is formed in the waveguide (302) by the above-described method, which can be erased by the application of infrared light, electric current or heat. |
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| 14 | THREE-DIMENSIONAL IMAGE DISPLAY APPARATUS INCLUDING DIFFRACTIVE COLOR FILTER | EP17150698.3 | 2017-01-09 | EP3193206A3 | 2017-10-25 | SHIN, Bongsu; KIM, Hyunjoon; PARK, Joonyong; KIM, Dongouk; BAE, Jihyun; SHIM, Dongsik; LEE, Sunghoon; CHUNG, Jaeseung; HONG, Seogwoo |
A three-dimensional (3D) image display apparatus (1000) includes a backlight unit (100) configured to provide collimated white light, and a display panel (500) configured to modulate the light provided from the backlight unit (100) based on image information and to display the light in a plurality of viewing zones. The display panel (500) includes a diffractive color filter (200) in which a diffractive element (D) for providing directivity is disposed on a color filter (CF1, CF2, CF3), thereby improving an optical efficiency in 3D image formation.
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| 15 | X-Ray Filter For X-Ray Powder Diffraction | US14955404 | 2015-12-01 | US20160155525A1 | 2016-06-02 | John Jay Sinsheimer; Raymond P. Conley; Nathalie C.D. Bouet; Eric Dooryhee; Sanjit Ghose |
| Technologies are described for apparatus, methods and systems effective for filtering. The filters may comprise a first plate. The first plate may include an x-ray absorbing material and walls defining first slits. The first slits may include arc shaped openings through the first plate. The walls of the first plate may be configured to absorb at least some of first x-rays when the first x-rays are incident on the x-ray absorbing material, and to output second x-rays. The filters may comprise a second plate spaced from the first plate. The second plate may include the x-ray absorbing material and walls defining second slits. The second slits may include arc shaped openings through the second plate. The walls of the second plate may be configured to absorb at least some of second x-rays and to output third x-rays. | ||||||
| 16 | LIGHT DIFFRACTION ELEMENT AND OPTICAL LOW PASS FILTER | US14032197 | 2013-09-20 | US20140016081A1 | 2014-01-16 | Yuichi KAKUBARI; Yasuaki UMEZAWA; Kenichi WATABE |
| A light diffraction element comprising a transparent substrate and a first orientation layer that is formed on one surface of the substrate and includes anisotropic polymers and a first pattern of an orientation direction arranged periodically in a first direction along the primary plane of the substrate. The first pattern includes three or more small regions that are arranged in the first direction and in which the orientation direction of the polymers included in the first orientation layer are different from each other, and generates diffracted light as a result of interference between light passed respectively through the three or more small regions. | ||||||
| 17 | High throughput X-ray diffraction filter sample holder | US10410910 | 2003-04-10 | US06968037B2 | 2005-11-22 | Victor W. Rosso; Glen Young; Joseph Nolfo; Imre M. Vit z; John J. Venit |
| Multiple samples are prepared in slurry form and deposited through a funnel plate by a multiprobe liquid handler into an array of inserts situated in openings in a housing. Each insert has a recess that extends through the insert body and a filter disc situated in the recess to support the sample. The filter is held in place by an annular part which defines a channel providing access to the filter through the lower portion of the recess. A pressure differential is created across each of the filters by attaching a vacuum manifold to the bottom of the housing to simultaneously remove the liquid from each of the samples, leaving the samples in powder form. The housing is then placed in the X-ray diffractometer for sequential analysis of each of the samples, while the samples are situated in the inserts. | ||||||
| 18 | High throughput X-ray diffraction filter sample holder | US10410910 | 2003-04-10 | US20040028179A1 | 2004-02-12 | Victor W. Rosso; Glen Young; Joseph Nolfo; Imre M. Vitez; John J. Venit |
| Multiple samples are prepared in slurry form and deposited through a funnel plate by a multiprobe liquid handler into an array of inserts situated in openings in a housing. Each insert has a recess that extends through the insert body and a filter disc situated in the recess to support the sample. The filter is held in place by an annular part which defines a channel providing access to the filter through the lower portion of the recess. A pressure differential is created across each of the filters by attaching a vacuum manifold to the bottom of the housing to simultaneously remove the liquid from each of the samples, leaving the samples in powder form. The housing is then placed in the X-ray diffractometer for sequential analysis of each of the samples, while the samples are situated in the inserts. | ||||||
| 19 | Multilayer solar filter reducing distortive diffraction | US47950874 | 1974-06-14 | US3897140A | 1975-07-29 | TUTHILL ROGER W |
| A filter for blocking out harmful solar radiation for direct viewing or for photographic purposes employs a plurality of flexible, transparent resin film layers which are coated with metal to achieve optical clarity and to effectively shield the user from most of the sun''s energy while allowing enough light to pass through the filter. The total thickness of the resin material is not more than approximately 0.002 inch, and the total thickness of the metal on the film layers provides an opaqueness to allow passage of approximately 0.01 percent sunlight.
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| 20 | WAVEGUIDE-TYPE OPTICAL DIFFRACTION GRATING AND OPTICAL WAVELENGTH FILTER | US15179098 | 2016-06-10 | US20170059779A1 | 2017-03-02 | Hideaki OKAYAMA |
| Provided is a waveguide-type optical diffraction grating. A waveguide core includes a waveguide core that is asymmetric with respect to a thickness direction perpendicular to a light propagating direction. In the waveguide core, a phase adjustment portion is configured to adjust a phase difference between a forward wave traveling in an input direction and a reflected wave traveling in a direction reverse to the input direction in the waveguide-type optical diffraction grating, and the phase adjustment portion is provided in a manner that a sum of a phase of the forward wave and a phase of the reflected wave which are generated in the phase adjustment portion becomes a constant value irrespective of a polarization state of input light to the waveguide-type optical diffraction grating. | ||||||
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