公开(公告)号：US11269123B2

公开(公告)日：2022-03-08

申请号：US16260903

申请日：2019-01-29

Applicant: Gary D. Sharp ,  Anthony D. McGettigan

Inventor： Gary D. Sharp ,  Anthony D. McGettigan

IPC: G02B5/30 ,  G02B27/09 ,  G02B3/00 ,  G02B27/28

Abstract: Hollow optical elements that derive optical power from compound-curved reflective surfaces to produce a desired composite optical power. The reflective surfaces in combination with polarization control, can produce a triple-pass arrangement that determines the optical power. Two functional films, one or both of which are formed (e.g., thermoformed), can be joined at the perimeter to form units that are mechanically robust and therefore preserve optical performance under mechanical load. The air-spaced cavity formed between the two layers is free of birefringence concerns, where polarization control is crucial to contrast. These optical elements can be installed in frames or headsets to form lightweight wearable magnifiers, wide-angle collimators, tele-photo lenses, or for any application requiring optical power. They may be most appropriate for applications where light efficiency is not critical, such as well-lit environments, where the insertion-loss of 1 to 2 stops is not problematic.

公开(公告)号：US10895675B2

公开(公告)日：2021-01-19

申请号：US15952336

申请日：2018-04-13

Applicant: Gary D. Sharp ,  Anthony D. McGettigan

Inventor： Gary D. Sharp ,  Anthony D. McGettigan

IPC: G02B5/30 ,  G02B5/28 ,  G03B11/00 ,  G02C7/10 ,  G02C7/12

Abstract: Optical filters that enhance image quality by exploiting differences in the wavelength dependence of the spectral power distribution (SPD) and the degree of polarization between elements in a scene in order to preserve, and more preferably enhance, color-contrast between one or more salient objects in the scene and/or a salient object and a background. The higher degree of polarization may be associated with the background or the one or more salient objects. Color contrast is associated with one or more of a difference in saturation, a difference in hue, and a difference in lightness.

公开(公告)号：US20190018177A1

公开(公告)日：2019-01-17

申请号：US16037934

申请日：2018-07-17

Applicant: GARY D. SHARP

Inventor： GARY D. SHARP

IPC: G02B5/30

Abstract: A compound retarder that creates independent control of Re and Rth. This can be done by forming a three-layer compound retarder, including a pair of matched −A-plates, combined with single +A-plate. The +A-plate is typically an MD-stretched film, with retardation that is specific to the in-plane requirements (Re) of the application. The pair of −A-plates have their optic axes crossed, such that Re=0, with an optic axis aligned parallel to the +A-plate. A single retardation value for the −A-plate can produce improved field-of-view performance over a broad range of Revalues, making it a very practical means of universal compensation. While Rthis typically associated with a single retarder, retarder stacks with a diverse range of optic-axis orientations can be considered to have a compound (or composite) Rth value (RthC). The three-layer compound retarder has the practical benefit of enabling field-of-view compensation across a broad range of normal-incidence polarization transformations.

公开(公告)号：US20180259692A1

公开(公告)日：2018-09-13

申请号：US15916115

申请日：2018-03-08

Applicant: GARY D. SHARP ,  ANTHONY D. McGETTIGAN

Inventor： GARY D. SHARP ,  ANTHONY D. McGETTIGAN

IPC: G02B5/20 ,  G02B5/30 ,  H04N5/225

CPC classification number: G02B5/205 ,  G02B5/3041 ,  G02B27/281 ,  H04N5/2254

Abstract: A three (or more) polarizer arrangement is used to demonstrate a wide-angle variable-neutral-density (VND) filter that has both contrast uniformity and color uniformity. According to one embodiment, the outer polarizers effectively counter-rotate with respect to a fixed center polarizer as a means of compensating for transmission non-uniformity associated with geometrical polarization distortions experienced by off-normal rays. In particular, the achromatic compensation arrangement enables angle uniformity relative to normal-incidence transmission when the number of stops of attenuation grows large (e.g. 10-stops, or OD3). The filters are useful for cameras or instrumentation allowing mechanical or electromechanical tuning.

公开(公告)号：US20170139234A1

公开(公告)日：2017-05-18

申请号：US15331245

申请日：2016-10-21

Applicant: GARY D. SHARP

Inventor： GARY D. SHARP

IPC: G02C7/12 ,  G02B5/30 ,  G02C7/10 ,  G02B27/28

CPC classification number: G02C7/12 ,  G02B5/3083 ,  G02B27/288 ,  G02C7/104 ,  G02C2202/16

Abstract: An eyewear lens is described that provides polarization filtering and spectral filtering using polarization interference. The lens produces enhanced saturation and colorfulness, increasing enjoyment when observing commonly encountered imagery. The lens can be configured to optimize accuracy/efficiency when performing a task involving colored imagery, and can improve performance in sports. The lens can further be helpful for color scrimination by those with certain types of color vision deficiency.

公开(公告)号：US08760760B2

公开(公告)日：2014-06-24

申请号：US13250638

申请日：2011-09-30

Applicant: David A. Coleman ,  Gary D. Sharp

Inventor： David A. Coleman ,  Gary D. Sharp

IPC: G03B21/60 ,  G03B21/56

CPC classification number: G03B21/60 ,  G03B21/56 ,  G03B21/602 ,  G03B21/604 ,  G03B21/625 ,  Y10T428/24355

Abstract: A method for providing a projection screen for receiving stereoscopic images may include providing a substrate with a contoured, reflective surface, wherein light reflected from the substrate substantially may undergo no more than a single reflection and may also include coating a first layer on the substrate with a contoured, reflective surface. The first layer may substantially maintain the same optical properties as the substrate without the first layer. The first layer may be substantially conformal to the surface of the substrate and also may be a self assembled monolayer coating which may include at least a functional group that is hydrophobic.

Abstract translation: 用于提供用于接收立体图像的投影屏幕的方法可以包括向基板提供具有轮廓的反射表面，其中从基板反射的光基本上可以经历不超过单个反射，并且还可以包括在基板上涂覆第一层， 一个轮廓，反光的表面。 第一层可以基本上保持与没有第一层的衬底相同的光学性质。 第一层可以基本上与衬底的表面共形，并且还可以是自组装的单层涂层，其可以包括至少一个疏水性的官能团。

公开(公告)号：US08711477B2

公开(公告)日：2014-04-29

申请号：US13290978

申请日：2011-11-07

Applicant: David A. Coleman ,  Gary D. Sharp

Inventor： David A. Coleman ,  Gary D. Sharp

IPC: G03B21/60

CPC classification number: G03B21/60 ,  F16H21/14 ,  G02B27/26 ,  G03B35/16 ,  G03B35/26 ,  Y10T74/18232 ,  Y10T428/24802

Abstract: Polarization preserving front projection screens and diffusers provide optimum polarization preservation for stereoscopic 3D viewing, as well as improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed screens direct light from a projector toward viewers within a diffusion locus, while maintaining optimum gain characteristics. More specifically, light incident on a region of the front projection screen from a predetermined projection direction is reflected by an engineered surface to a predetermined diffusion locus after undergoing substantially single reflections. The engineered surface, comprised of generating kernels, is used to optimally diffuse illumination light into a range of viewing angles, within the diffusion locus, with suitable gain profile, while optimally preserving polarization for 3D applications. Such a screen, when combined with matched polarization analyzing eyewear, provides extremely low cross-talk from any observation point.

Abstract translation: 极化保护前投影屏幕和扩散器为立体3D观看提供了最佳的极化保存，以及改进的光控制，以提高2D和3D系统的亮度，均匀性和对比度。 通常，所公开的屏幕将光从投影仪引导到扩散轨迹内的观看者，同时保持最佳增益特性。 更具体地说，从预定投影方向入射到前投影屏幕的区域的光在进行基本上单次反射之后被工程化表面反射到预定的扩散轨迹。 包括生成内核的工程表面用于将照明光最优化地扩散到扩散轨迹内的视角范围内，并具有适当的增益分布，同时最佳地保持3D应用的极化。 当与匹配的偏振分析眼镜组合时，这样的屏幕提供了来自任何观察点的极低的串扰。

公开(公告)号：US08659828B2

公开(公告)日：2014-02-25

申请号：US13488081

申请日：2012-06-04

Applicant: Gary D. Sharp ,  David A. Coleman ,  Joel Petersen ,  Chris Rich ,  Ray Lewandowski

Inventor： Gary D. Sharp ,  David A. Coleman ,  Joel Petersen ,  Chris Rich ,  Ray Lewandowski

IPC: G03B21/60

CPC classification number: G03B21/604 ,  B29D11/0074

Abstract: Polarization preserving projection screens provide optimum polarization preservation for 3D viewing. The projection screens additionally provide improved light control for enhanced brightness, uniformity, and contrast for both 2D and 3D systems. Generally, the disclosed method for providing a projection screen comprises embossing at least a first side of a first substrate to produce an optically functional material and then cutting the optically functional material into pieces to produce a plurality of engineered particles. The plurality of engineered particles may then be deposited on a second substrate to produce a substantially homogeneous optical appearance of the projection screen.

Abstract translation: 极化保护投影屏为3D观看提供最佳的极化保存。 投影屏幕另外提供改进的光控制，以提高2D和3D系统的亮度，均匀性和对比度。 通常，所提供的用于提供投影屏幕的方法包括压印第一基板的至少第一侧以产生光学功能材料，然后将光学功能材料切割成片以产生多个工程化颗粒。 然后可以将多个工程化颗粒沉积在第二基底上以产生投影屏幕的基本均匀的光学外观。

公开(公告)号：US20130148042A1

公开(公告)日：2013-06-13

申请号：US13523815

申请日：2012-06-14

Applicant: Michael G. Robinson ,  Jianmin Chen ,  Gary D. Sharp

Inventor： Michael G. Robinson ,  Jianmin Chen ,  Gary D. Sharp

IPC: G02F1/13

CPC classification number: G02F1/1313 ,  G02B27/26 ,  G02F1/133528 ,  G02F2001/133562 ,  G02F2001/133633

Abstract: Polarization modulation with in-plane switching of liquid crystals (LCs) may be used in active retarder stereoscopic display systems where viewers wear passive eyewear to see isolated left and right eye images. Embodiments of the present disclosure may include nematic LC or fast switching ferroelectric liquid crystal (FLC), depending on the desired performance.

公开(公告)号：US08408708B2

公开(公告)日：2013-04-02

申请号：US12785351

申请日：2010-05-21

Applicant: Gary D. Sharp

Inventor： Gary D. Sharp

IPC: G03B21/00

CPC classification number: G03B35/26 ,  G02B26/00 ,  G02B27/26 ,  G02B27/286 ,  H04N13/341 ,  H04N13/363

Abstract: A polarization switch provides substantially ideal binary polarization switching over a broad range of wavelengths using a polarization modulation wheel having at least one retarder stack that transforms polarization. Using the polarization modulation wheel in a polarization system provides a high throughput polarization switch and operates over a wide range of incidence angles while providing substantially continuous and smooth polarization output for each component for any selected polarization basis set. The polarization modulation wheel is well-suited for stereoscopic polarized projection applications.

Abstract translation: 偏振开关使用具有变换偏振的至少一个延迟器叠层的偏振调制轮，在宽范围的波长范围内提供基本上理想的二极管偏振切换。 在极化系统中使用偏振调制轮提供了高吞吐量偏振开关，并且在宽的入射角范围内工作，同时为任何选定的偏振基准集合的每个分量提供基本连续和平滑的偏振输出。 偏振调制轮非常适合于立体偏振投影应用。