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. 发明申请

US20190018170A1 SCREEN FOR DISPLAY 审中-公开
公开(公告)号：US20190018170A1
公开(公告)日：2019-01-17
申请号：US16069344
申请日：2017-01-11
申请人： KURARAY Co., Ltd.
发明人： Junji WATANABE , Masaru KARAI , Tomohiro TAKAHASHI , Chikafumi KURAHASHI
IPC分类号： G02B5/00 , G02B3/00 , G02B27/01
摘要： The present disclosure pertains to the field of screen. It is an object of the present disclosure to provide a transmissive screen including a microlens array. The screen of the present disclosure further comprises an aperture array arranged on a surface opposite to the surface on which the microlens array is disposed. A light shielding portion of the aperture array is a metal film. The transmissive screen of the present disclosure can be used for a display.

2. 发明申请

US20180113240A1 COMPOSITE DIFFUSER PLATE 审中-公开
公开(公告)号：US20180113240A1
公开(公告)日：2018-04-26
申请号：US15564769
申请日：2016-04-07
申请人： KURARAY CO., LTD.
发明人： Junji WATANABE , Masaru KARAI , Atsushi UCHIDA
IPC分类号： G02B5/02 , G02B3/00
CPC分类号： G02B5/0231 , G02B3/00 , G02B3/0043 , G02B5/02 , G02B5/0268 , G02B5/0278 , G02F1/133504 , G03B21/62
摘要： The present disclosure provides a composite diffuser plate capable of inhibiting luminance unevenness from occurring locally. Provided is a composite diffuser plate (100, 200, 300) including a first diffuser plate (10) and a second diffuser plate (20, 30) arranged in this order from an incident side. At least one of the first diffuser plate (10) and the second diffuser plate (20, 30) is composed of a random microlens array (10) including a plurality of microlenses (12). The plurality of microlenses (12) include a plurality of parameters defining a lens shape. At least one of the plurality of parameters is randomly distributed. The random microlens array (10) causes a phase difference to be generated in transmitted light.

3. 发明申请

US20220179129A1 FINE CONCAVE AND CONVEX PATTERN FILM AND HEAD-UP DISPLAY DEVICE 有权
公开(公告)号：US20220179129A1
公开(公告)日：2022-06-09
申请号：US17442914
申请日：2020-03-25
申请人： KURARAY CO., LTD.
发明人： Tomohiro TAKAHASHI , Takashi NATSUME , Masaru KARAI
IPC分类号： G02B3/00 , G02B27/01 , G02B1/113
摘要： A fine concave and convex pattern film which includes a base material film having a fine concave and convex pattern on at least a part of its surface and an antireflection film composed of an inorganic film formed on at least a part of a surface of the fine concave and convex pattern.

4. 发明申请

US20200284952A1 DIFFUSER PLATE AND PROJECTION-TYPE IMAGE DISPLAYING DEVICE 审中-公开
公开(公告)号：US20200284952A1
公开(公告)日：2020-09-10
申请号：US16338849
申请日：2017-10-02
申请人： KURARAY CO., LTD.
发明人： Atsushi UCHIDA , Masaru KARAI
IPC分类号： G02B5/02
摘要： The present invention provides a diffuser plate whose luminance of emission light emitted from a microlens is even in a diffusion range. The diffuser plate comprises a projection side main surface, an emission side main surface, and a fine structure having a plurality of microlens shape parts with a microlens-like shape. A numerical aperture NA of the projection light is greater than 0 and 0.140 or less. An incident angle θi formed by an optical axis of the projection light at the microlens shape part and a normal of the projection side main surface intersecting with each other is in a range of 0 to 50 degrees. At least one of the plurality of microlens shape parts emits the emission light at an emission angle θo formed by the optical axis of the emission light and the normal of the projection side main surface intersecting with each other.

5. 发明申请

US20220128742A1 DIFFUSER PLATE 有权
公开(公告)号：US20220128742A1
公开(公告)日：2022-04-28
申请号：US17424251
申请日：2020-01-21
申请人： KURARAY CO., LTD.
发明人： Keisuke IKEDA , Atsushi UCHIDA , Masaru KARAI
IPC分类号： G02B5/02
摘要： A transmission-type or reflection-type diffuser plate including a planar base material on which an optical element having an effective diameter of “a” in an X-axis direction and an effective diameter of “b” in a Y-axis direction is provided to constitute an a×b two-dimensional basic periodic structure, each of the basic periodic structure having an Na×Mb two-dimensional periodic phase structure in which a basic block has N rows and M columns including N optical elements in the X-axis direction and M optical elements in the Y-axis direction, the diffuser plate being configured such that if a phase structure Pnm in the n-th row and the m-th column is expressed by Pn1+P1m, and directivity is represented by square of the absolute value of Fourier transform of complex transmittance or complex reflectance of an optical element in the n-th row and the m-th column in the basic block; a ratio of standard deviation to average of the directivity is 0.3 or less.

6. 发明申请

US20190146237A1 DIFFUSER PLATE AND PROJECTION-TYPE PROJECTOR DEVICE 审中-公开
公开(公告)号：US20190146237A1
公开(公告)日：2019-05-16
申请号：US16096994
申请日：2017-04-25
申请人： KURARAY CO., LTD.
发明人： Atsushi UCHIDA , Masaru KARAI , Koji ISHIDA
IPC分类号： G02B27/48 , G02B5/02
摘要： The present disclosure provides a diffuser plate capable of achieving excellent appearance quality when an image is projected. A transmissive diffuser plate including a microlens angle modulation distribution group provided on at least one of a light incident surface and a light emitting surface is provided. A microlens angle modulation distribution group includes a plurality of microlenses and an angle modulation part having an angle modulation distribution for angle-modulating a direction of main light emitted from each of the plurality of microlenses. When a ratio λ/P of a wavelength λ [μm] of the main light to an average arrangement period P [μm] of the microlens is denoted by θ [rad], and when the direction of the main light emitted from each of the plurality of microlenses is modulated by a modulation angle α [rad], a ratio α/θ of the modulation angle α to θ satisfies 0.1

7. 发明申请

US20180106930A1 DIFFUSER PLATE 审中-公开
公开(公告)号：US20180106930A1
公开(公告)日：2018-04-19
申请号：US15557344
申请日：2016-03-10
申请人： KURARAY CO., LTD.
发明人： Atsushi UCHIDA , Masaru KARAI , Junji WATANABE
IPC分类号： G02B3/00 , G02B5/02 , G02B27/48 , G02B27/01
CPC分类号： G02B3/0043 , G02B3/00 , G02B5/02 , G02B5/0221 , G02B5/0278 , G02B27/01 , G02B27/0101 , G02B27/48 , G02B2027/013
摘要： A diffuser plate includes a plurality of fine structures having two or more types of lens functions arranged on a main surface. Intensity of diffused light within a desired diffusion angle range is substantially uniform, and the diffuser plate satisfies a relation of P×P×Sk≤400 [μm2], where P is an average pitch of the plurality of fine structures, Sk is a standard deviation of relative luminance of the plurality of fine structures in their front directions, P≤200 [μm], and Sk≥0.005. Thus, it is possible to provide a diffuser plate having a simple structure capable of achieving optical properties with little luminance and color unevenness and excellent appearance quality when an image is projected.

8. 发明申请

US20170235154A1 DIFFUSER PLATE AND METHOD FOR DESIGNING DIFFUSER PLATE 审中-公开
公开(公告)号：US20170235154A1
公开(公告)日：2017-08-17
申请号：US15515426
申请日：2015-09-30
申请人： KURARAY CO., LTD.
发明人： Atsushi UCHIDA , Masaru KARAI
IPC分类号： G02B27/48 , G03B21/625 , G02B27/00 , G03B21/602 , G02B5/02 , G02B3/00
摘要： The present invention provides a diffuser plate in a simple structure capable of achieving optical properties with less luminance irregularity and color irregularity and good quality of appearance. A diffuser plate is a diffuser plate where a plurality of microlenses are placed on a principal surface, shapes of the plurality of microlenses along a cross-section perpendicular to the principal surface are different from one another and do not have an axis of symmetry. A method for designing the diffuser plate includes steps of determining a specific reference microlens; placing the reference microlens on the principal surface; forming a specific phase modulation shape; and determining a shape of the plurality of microlenses by combining the specific reference microlens and the specific phase modulation shape.

9. 发明申请

US20170235028A1 DIFFUSER PLATE AND METHOD FOR PRODUCING DIFFUSER PLATE 审中-公开
公开(公告)号：US20170235028A1
公开(公告)日：2017-08-17
申请号：US15515164
申请日：2015-09-29
申请人： KURARAY CO., LTD.
发明人： Atsushi UCHIDA , Masashi HIRAI , Masaru KARAI
IPC分类号： G02B5/02 , G02B3/00 , G02B27/48 , G02B5/30
CPC分类号： G02B5/0221 , G02B3/00 , G02B3/0031 , G02B3/0043 , G02B5/02 , G02B5/0268 , G02B5/0294 , G02B5/3083 , G02B27/48
摘要： The present invention provides a diffuser plate and a method for producing a diffuser plate that can improve variations in luminance of transmitted light or reflected light in a simple structure and that enable easy design and production. The diffuser plate according to the present invention is a diffuser plate where a plurality of microlenses are placed on a principal surface, wherein a phase difference generation part is inserted between the plurality of microlenses and the principal surface, the plurality of microlenses have two or more types of lens shapes, and the number of microlenses having the two or more types of lens shapes is determined so that a quantity ratio of the two or more types of lens shapes is a specific value, each of the lens shape types is selected corresponding to each of coordinates on the principal surface in which centers of undersurfaces of the plurality of microlenses are placed, and an angle range in which the diffuse light intensity is substantially uniform is in a range of +10% to −10% of a desired angle range.

10. 发明申请

US20170031156A1 METHOD FOR DESIGNING LIGHT DIFFUSION PATTERN, METHOD FOR MANUFACTURING LIGHT DIFFUSION PLATE, AND LIGHT DIFFUSION PLATE 审中-公开
标题翻译：用于设计光扩散图案的方法，制造光扩散板的方法和光扩散板
公开(公告)号：US20170031156A1
公开(公告)日：2017-02-02
申请号：US15303125
申请日：2015-04-09
申请人： KURARAY Co., Ltd.
发明人： Atsushi UCHIDA , Masashi HIRAI , Masaru KARAI
IPC分类号： G02B27/00 , G02B3/00 , G02B5/02
CPC分类号： G02B27/0012 , G02B3/0043 , G02B5/0221 , G02B5/0263 , G02B5/0268
摘要： The present invention provides a method for designing a light diffusion pattern with which a light diffusion pattern to exhibit desired light diffusion properties can be designed depending on a few systematic procedures. The method includes a lens data preparation step of preparing lens data having desired light diffusion properties, a placement step of placing a plurality of lens data (100) prepared in the lens data preparation step in a predetermined region (200), a cutting step of, when an overlap (210) of lenses (100) occurs in the placement step, cutting out a part (421) of a lens shape to eliminate the overlap (210), and a repositioning step of replicating a shape of the cutout part (421) and repositioning it to another place.
摘要翻译：本发明提供了一种用于设计光扩散图案的方法，根据少数系统的程序，可以根据该方法设计出具有所需光漫射特性的光散射图案。该方法包括准备具有期望的光漫射特性的透镜数据的透镜数据准备步骤，将准备在透镜数据准备步骤中的多个透镜数据（100）放置在预定区域（200）中的放置步骤，切割步骤当在放置步骤中发生透镜（100）的重叠（210）时，切出透镜形状的部分（421）以消除重叠（210），以及重新定位步骤， 421）并将其重新定位到另一个地方。

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