公开(公告)号：US20210015356A1

公开(公告)日：2021-01-21

申请号：US16987271

申请日：2020-08-06

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： A61B3/028 ,  A61B3/06 ,  A61B3/00 ,  A61B3/09

摘要： An optometer may include a test object including a point light source and a collimator lens configured to collimate light from the point light source. The optometer may generate, for a user viewing the point light source through the collimator lens, an image of the point illumination source on a retina of an eye when the eye is in a rest position without triggering the eye to focus. A user-perceived deviation of the image of the point source from an in-focus image is indicative of visual refractive error of the user. A user may use the device with a naked eye to gauge visual refractive error of the eye or may use the device with corrective lenses to gauge the efficacy of the corrective lenses.

公开(公告)号：US07149015B2

公开(公告)日：2006-12-12

申请号：US10751871

申请日：2004-01-05

申请人： Jan Hoogland ,  Curtis A. Shuman

发明人： Jan Hoogland ,  Curtis A. Shuman

IPC分类号： G03H1/04

CPC分类号： G03H1/0465 ,  G02B5/04 ,  G02B26/0816 ,  G03H1/04 ,  G03H1/26 ,  G03H1/265 ,  G11B7/0065 ,  G11B7/1359 ,  G11B7/1362 ,  G11B7/1398

摘要： Disclosed are optical systems and methods of producing obliquity corrected light beams, for example, holographic recording and retrieval systems that utilize an obliquity corrected reference beam. One method includes directing a light beam reflected from a prism mirror to a reference plane with an angle of incidence to the reference plane, wherein the prism mirror varies the width of the light beam according to the angle of incidence to the reference plane. The optical system may include a holographic data storage system and the reference plane may be associated with a holographic storage medium.

摘要翻译： 公开了制造倾斜校正光束的光学系统和方法，例如，利用倾斜校正参考光束的全息记录和检索系统。 一种方法包括将从棱镜反射的光束引导到参考平面与参考平面的入射角，其中棱镜镜根据入射到参考平面的角度来改变光束的宽度。 光学系统可以包括全息数据存储系统，并且参考平面可以与全息存储介质相关联。

公开(公告)号：US06175454B1

公开(公告)日：2001-01-16

申请号：US09229807

申请日：1999-01-13

申请人： Jan Hoogland ,  Edward C. Driscoll ,  Willard C. Lomax

发明人： Jan Hoogland ,  Edward C. Driscoll ,  Willard C. Lomax

IPC分类号： G02B1306

CPC分类号： G02B13/06

摘要： According to one aspect of the invention there is provided a panoramic imaging arrangement comprising a transparent component and a reflective material. The transparent component has a first surface about a vertical axis of revolution, a second surface about the axis of revolution, and an opening formed therein to define a third, internal surface about the axis of revolution. The third surface has a concave profile in a plane of the axis of revolution. The reflective material is located on the second surface to provide a reflective surface against the second surface. The first surface, the reflective surface and the third surface are positioned relative to one another so that light from a 360° surrounding panoramic scene enters the transparent component through the first surface, whereafter the light is reflected from the reflective surface, whereafter the light exits the transparent component through the third surface.

摘要翻译： 根据本发明的一个方面，提供了一种包括透明部件和反射材料的全景成像装置。 透明部件具有绕垂直旋转轴线的第一表面，围绕旋转轴线的第二表面，以及形成在其中以围绕旋转轴线限定第三内表面的开口。 第三表面在旋转轴的平面内具有凹形轮廓。 反射材料位于第二表面上以提供抵靠第二表面的反射表面。 第一表面，反射表面和第三表面相对于彼此定位，使得来自360°周围全景场景的光通过第一表面进入透明部件，之后光从反射表面反射，之后光从出口 透明组件通过第三表面。

公开(公告)号：US20200073146A1

公开(公告)日：2020-03-05

申请号：US16122873

申请日：2018-09-05

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： G02C7/06

摘要： Binocular instruments are designed to present images to unaccommodated normal eyes. The eyes are then at their rest position, at which the eyes are focused at infinity and have zero convergence, approximately. Also, custom prescriptions by optometrists prescribe glasses that provide vision correction for unaccommodated eyes. Current generic reading glasses and generic bi-, multi and varifocal additions to custom prescription glasses however lack convergence assistance that provides unaccommodated or partially accommodated vision. Current technology provides convergence assistance by means of prism power which can be applied to current generic reading glasses. The present invention provides generic reading glasses with focusing assistance and convergence assistance. The present invention also provides generic bi-, multi- and varifocal additions for custom prescription glasses with focusing assistance and convergence assistance.

公开(公告)号：US20120224237A1

公开(公告)日：2012-09-06

申请号：US13470635

申请日：2012-05-14

申请人： ERNEST Y. Chuang ,  Kevin R. Curtis ,  Jan Hoogland ,  Yunping Yang

发明人： ERNEST Y. Chuang ,  Kevin R. Curtis ,  Jan Hoogland ,  Yunping Yang

IPC分类号： G03H1/04

CPC分类号： G11B7/0065 ,  G03H2001/0415 ,  G03H2001/0428 ,  G03H2223/19 ,  G11B7/26 ,  G11B7/28

摘要： According to one aspect and example, a holographic recording system includes a light source, an object for modulating an object beam from the light source, and a relay system adapted to magnify (positive or negative) the modulated beam (e.g., an image of the object) to an output image. The object may include an SLM operable to modulate the object beam with an information layer comprising a plurality of data pages. The output image is directed to the holographic storage medium, where a reference beam is also directed, to record the resulting interference pattern. Additionally, the relay system converges the output image to an output Fourier plane, which may be disposed within the holographic storage medium. A filter may be placed at an intermediate Fourier plane located prior to the output Fourier plane, and a phase mask may be placed at the position of the output image.

摘要翻译： 根据一个方面和示例，全息记录系统包括光源，用于调制来自光源的物体光束的物体，以及适于放大（正或负）调制光束的中继系统（例如， 对象）到输出图像。 该对象可以包括可操作以利用包括多个数据页的信息层来调制对象光束的SLM。 输出图像被引导到参考光束也被引导的全息存储介质，以记录所得到的干涉图案。 另外，中继系统将输出图像收敛到可设置在全息存储介质内的输出傅立叶平面。 滤波器可以放置在位于输出付里叶平面之前的中间傅立叶平面处，并且相位掩模可以被放置在输出图像的位置。

公开(公告)号：US20060193041A1

公开(公告)日：2006-08-31

申请号：US11226864

申请日：2005-09-14

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： G02B23/24

CPC分类号： G02B13/0095 ,  G02B23/2407 ,  G02B23/243 ,  G02B23/2446

摘要： Optical systems for endoscopes, borescopes, dental scopes, and the like which are characterized by having three groups of lenses of positive optical power and an external entrance pupil. Typically, all three groups of lenses are displaced from the pupil and focal planes. As a consequence, the displaced groups take part in the image transfer as well as in the pupil transfer. The optical power requirements can thus be shifted from one group to another, distributing as well as reducing the overall power requirement. Moreover, the aberration correction can also be shared between these groups. The first group, which conventionally has the highest optical power, and consequently a large amount of aberrations to be corrected, can in this way transfer some of the optical aberration correction to the other groups. The sharing of the optical functions and aberration correction results in a fully integrated optical system. The reduction in the total amount of optical power is so large that a line-of-sight deviating prism can be readily accommodated between the entrance pupil and the first lens group. The resulting simplicity of the optical system makes it suitable as a disposable item.

公开(公告)号：US06521586B1

公开(公告)日：2003-02-18

申请号：US09636799

申请日：2000-08-11

申请人： Jan Hoogland ,  Anick Colson ,  Franck Renauld ,  Jacqueline L'Hostis ,  George Sawicki ,  Sophie Stassen

发明人： Jan Hoogland ,  Anick Colson ,  Franck Renauld ,  Jacqueline L'Hostis ,  George Sawicki ,  Sophie Stassen

IPC分类号： B01D1904

CPC分类号： C11D3/373 ,  B01D19/0404 ,  C11D3/0026 ,  C11D3/162 ,  B01D19/0409 ,  B01D19/0431

摘要： A foam control agent comprises (A) an organopolysiloxane material having at least one silicon-bonded substituent of the formula X—Ph, wherein X denotes a divalent aliphatic hydrocarbon group and Ph denotes an optionally substituted aromatic group, (B) an organosilicon resin and (C) a hydrophobic filler. The organosilicon resin (B) preferably consists of siloxane units of the formula R′aSiO4−a/2 wherein R′ denotes a hydroxyl, hydrocarbon or hydrocarbonoxy group, particularly trialkylsiloxy units and SiO4/2 units, wherein a has a value of from 0.5 to 2.4. The foam control agent may be provided as an emulsion or as a particulate material. It is especially useful as a detergent foam control agent.

摘要翻译： 泡沫控制剂包括（A）具有式X-Ph的至少一个与硅键合的取代基的有机聚硅氧烷材料，其中X表示二价脂族烃基，Ph表示任选取代的芳族基团，（B）有机硅树脂和 （C）疏水填料。 有机硅树脂（B）优选由式R'aSiO4-a / 2的硅氧烷单元组成，其中R'表示羟基，烃或烃氧基，特别是三烷基甲硅烷氧基单元和SiO 4/2单元，其中a的值为0.5 到2.4。 泡沫控制剂可以作为乳剂或颗粒材料提供。 作为洗涤剂泡沫控制剂是特别有用的。

公开(公告)号：US4946267A

公开(公告)日：1990-08-07

申请号：US191926

申请日：1988-05-09

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： G02B13/18 ,  G02B23/24

CPC分类号： G02B13/18 ,  G02B23/2446

摘要： An endoscope relay optics design that reduces the number of air surfaces while maintaining high levels of correction. A lens assembly for incorporation into an optical transfer system (where two such assemblies define an optical transfer module for transferring an image between successive image planes) is of unitary construction. The assembly comprises five elements including a central rod-like element of high index material, a pair of negative elements of relatively low index, high dispersion material cemented to opposite ends of the central element, and a pair of positive end elements of high index, low dispersion material cemented to the negative elements. The powers of the elements are determined by requiring the Petzval sum to assume a desired low value, with index difference being the primary contributor to the correction. The two exposed surfaces are flat or mildly concave and include an aspheric component to correct spherical aberration.

摘要翻译： 内窥镜继电器光学设计，可以减少空气表面的数量，同时保持高水平的校正。 用于结合到光学传输系统（其中两个这样的组件限定用于在连续的图像平面之间传送图像的光学传递模块）的透镜组件是一体的结构。 该组件包括五个元件，包括高折射率材料的中心棒状元件，一对相对较低折射率的高分散材料的粘合剂，以及一对高折射率的正端元件， 低分散材料胶合到负极元素。 元素的权力通过要求Petzval总和来取得所需的低值来确定，其中指数差是校正的主要贡献者。 两个暴露的表面是平坦的或轻微的凹入的，并且包括非球面分量以校正球面像差。

公开(公告)号：US4545652A

公开(公告)日：1985-10-08

申请号：US268230

申请日：1981-05-29

申请人： Jan Hoogland

发明人： Jan Hoogland

IPC分类号： G02B9/02 ,  G02B9/04 ,  G02B13/00 ,  G02B13/18 ,  G02B23/00

CPC分类号： G02B13/00

摘要： A flat field lens system wherein the Petzval sum is corrected without requiring many spaced high powered elements or sharply bent elements. This is achieved by having the Petzval sum correction dominated by the index difference. In an embodiment suitable for use in endoscope transfer optics where medium or high aperture is required, the spherical aberration is best corrected by use of an aspheric surface on the low index material. Where high aperture is not required, as for example in a photographic wide angle objective, spherical aberration is kept low by using a relatively small aperture.