-
公开(公告)号：US20160127722A1
公开(公告)日：2016-05-05
申请号：US14757573
申请日：2015-12-24
Applicant: Nikolay Ledentsov
Inventor： Nikolay Ledentsov
CPC classification number: H04N13/363 , G02B27/2221 , G03B17/54 , G03B21/28 , G03B21/53 , G03B35/22 , G06T19/006 , H04N13/128 , H04N13/322 , H04N13/324 , H04N13/361 , H04N13/395 , H04N13/398 , H04N2013/0081
Abstract: A device for generation of three-dimensional images in the observer's eye using at least one two-dimensional display and an optical system with an adjustable focal length. The display generates planar images corresponding to the different depths of the designed three dimensional (3D) image and the images are then directed to at least one mirror or lens with the adjustable focal length synchronized to the particular image. The optical system generates virtual images at different virtual planes in such a way that the eye receives a complete 3D virtual image.
Abstract translation: 一种用于使用至少一个二维显示器和具有可调焦距的光学系统在观察者眼中产生三维图像的装置。 显示器产生对应于所设计的三维（3D）图像的不同深度的平面图像，然后将图像定向到具有与特定图像同步的可调节焦距的至少一个镜像或透镜。 光学系统以不同的虚拟平面生成虚拟图像，使得眼睛接收到完整的3D虚拟图像。
-
公开(公告)号：US08890113B2
公开(公告)日：2014-11-18
申请号：US13507083
申请日：2012-06-04
Applicant: Nikolay Ledentsov , James Lott , Vitaly Shchukin
Inventor： Nikolay Ledentsov , James Lott , Vitaly Shchukin
CPC classification number: H01L33/04 , B82Y20/00 , H01L33/0062 , H01L33/06 , H01L33/26 , H01L33/305 , H01S5/3403 , H01S5/3407 , H01S5/3422 , Y10S977/762 , Y10S977/773
Abstract: A light-emitting device epitaxially-grown on a GaAs substrate which contains an active region composed of AlxGa1-xAs alloy or of related superlattices of this materials system is disclosed. This active region either includes tensile-strained GaP-rich insertions aimed to increase the forbidden gap of the active region targeting the bright red, orange, yellow, or green spectral ranges, or is confined by regions with GaP-rich insertions aimed to increase the barrier height for electrons in the conduction band preventing the leakage of the nonequilibrium carriers outside of the light-generation region.
Abstract translation: 公开了一种在GaAs衬底上外延生长的发光器件，其包含由Al x Ga 1-x As合金构成的有源区或该材料体系的相关超晶格。 该活性区域还包括拉伸应变的富含GaP的插入物，旨在增加靶向明亮的红色，橙色，黄色或绿色光谱范围的活性区域的禁止间隙，或被GaP富集插入区限制，目的在于增加 导电带中的电子的势垒高度防止非平衡载流子在光产生区域外的泄漏。
-
公开(公告)号：US20110007764A1
公开(公告)日：2011-01-13
申请号：US12803747
申请日：2010-07-06
Applicant: Nikolay Ledentsov
Inventor： Nikolay Ledentsov
CPC classification number: H01S5/18341 , H01L33/0045 , H01L33/10 , H01L33/465 , H01S5/0654 , H01S5/1021 , H01S5/18302 , H01S5/1833 , H01S5/18369 , H01S5/2027
Abstract: A device representing a reflector, for example, an evanescent reflector or a multilayer interference reflector with at least one reflectivity stopband is disclosed. A medium with means of generating optical gain is introduced into the layer or several layers of the reflector. The optical gain spectrum preferably overlaps with the spectral range of the reflectivity stopband. This device can be attached to air, semiconductor or dielectric material or multilayer structures and provide a tool for preferential amplification of the optical waves propagating at larger angles with respect to the interface with the evanescent or the multilayer interference reflector. Thus angle selective amplification or generation of light is possible. Several evanescent or interference reflectors can be used to serve the goal of preferable amplification the said optical waves.
Abstract translation: 公开了一种表示反射器的装置，例如具有至少一个反射阻挡带的ev逝反射器或多层干涉反射器。 具有产生光学增益的方法的介质被引入反射器的层或几层中。 光学增益光谱优选与反射阻挡带的光谱范围重叠。 该装置可以连接到空气，半导体或电介质材料或多层结构，并提供用于优先放大相对于与渐逝或多层干涉反射器的界面以更大角度传播的光波的工具。 因此，角度选择性放大或光的产生是可能的。 可以使用几个消逝或干涉反射器来实现所述光波的优选放大的目标。
-
4.发明申请公开(公告)号：US20220368113A1
公开(公告)日：2022-11-17
申请号：US17724041
申请日：2022-04-19
Applicant: Nikolay Ledentsov , Vitaly Shchukin
Inventor： Nikolay Ledentsov , Vitaly Shchukin
Abstract: An on-chip miniarray of optically-coupled oxide-confined apertures of vertical cavity surface emitting lasers (VCSELs) is realized by etching holes from the chip surface down to at least one aperture layer. Oxidation of the aperture layer results in electrically-isolated apertures suitable for current injection. The lateral distance between the aperture centers and the shape of the aperture is chosen to result in effective interaction of the neighboring optical modes in the related aperture regions through optical field coupling effect causing the interaction-induced splitting of the wavelengths of the optical modes. At least one aperture has a different surface area due to different spacing of the etched holes. Different aperture sizes result in different wavelengths of the coupled modes. Splitting of the cavity modes in a frequency domain 3-100 GHz extends the modulation bandwidth of the device due to photon-photon interaction effects.
Selective deposition of highly reflective coating and/or anti-reflecting coating over apertures of different VCSELs foiining a miniarray allows stabilizing lasing in a single coherent mode of the array. Most preferably, highly reflective coating covers the largest aperture and stabilizes the fundamental mode of the coherent array. Anti-reflecting coatings can be deposited on at least one other aperture to reduce the photon lifetime and increase the homogeneous broadening of the related resonant wavelength. Consequently broadening of the photon-photon interaction resonances between the cavity modes can be controlled. Such resonance broadening allows control over the shape of the current modulation curve of the miniarray of VCSELs with the frequency maximum defined by the splitting of the cavity modes and the broadening defined by the broadening of the photon resonances. An increase in −3dB modulation bandwidth of the VCSEL miniarray up to at least 70 GHz is possible.
Such miniarray of VCSELs enables efficient coupling of the emitted light to a multimode optical fiber with the efficiency of at least 70%.-
公开(公告)号：US09936193B2
公开(公告)日：2018-04-03
申请号：US14999451
申请日：2016-05-09
Applicant: Nikolay Ledentsov
Inventor： Nikolay Ledentsov
CPC classification number: H04N13/363 , G02B27/2221 , G03B17/54 , G03B21/28 , G03B21/53 , G03B35/22 , G06T19/006 , H04N13/128 , H04N13/322 , H04N13/324 , H04N13/361 , H04N13/395 , H04N13/398 , H04N2013/0081
Abstract: A device for generation of three-dimensional images in the observer's eye using at least one two-dimensional display and an optical system with an adjustable focal length. The display generates planar images corresponding to the different depths of the designed three dimensional (3D) image and the images are then directed to at least one mirror or lens with the adjustable focal length synchronized to the particular image. The optical system generates virtual images at different virtual planes in such a way that the eye receives a complete 3D virtual image.
-
Patent Agency Ranking
公开(公告)号：US20160261858A1
公开(公告)日：2016-09-08
申请号：US14999451
申请日：2016-05-09
Applicant: Nikolay Ledentsov
Inventor： Nikolay Ledentsov
CPC classification number: H04N13/363 , G02B27/2221 , G03B17/54 , G03B21/28 , G03B21/53 , G03B35/22 , G06T19/006 , H04N13/128 , H04N13/322 , H04N13/324 , H04N13/361 , H04N13/395 , H04N13/398 , H04N2013/0081
Abstract: A device for generation of three-dimensional images in the observer's eye using at least one two-dimensional display and an optical system with an adjustable focal length.The display generates planar images corresponding to the different depths of the designed three dimensional (3D) image and the images are then directed to at least one mirror or lens with the adjustable focal length synchronized to the particular image. The optical system generates virtual images at different virtual planes in such a way that the eye receives a complete 3D virtual image.
Abstract translation: 一种用于使用至少一个二维显示器和具有可调焦距的光学系统在观察者眼中产生三维图像的装置。 显示器产生对应于所设计的三维（3D）图像的不同深度的平面图像，然后将图像定向到具有与特定图像同步的可调节焦距的至少一个镜像或透镜。 光学系统以不同的虚拟平面生成虚拟图像，使得眼睛接收到完整的3D虚拟图像。
-
公开(公告)号：US10666017B2
公开(公告)日：2020-05-26
申请号：US16364180
申请日：2019-03-26
Applicant: Nikolay Ledentsov , Vitaly Shchukin
Inventor： Nikolay Ledentsov , Vitaly Shchukin
Abstract: An optoelectronic device employs a surface-trapped TM-polarized optical mode existing at a boundary between a distributed Bragg reflector (DBR) and a homogeneous medium, dielectric or air. The device contains a resonant optical cavity surrounded by two DBRs, and an additional DBR section on top supporting the surface-trapped mode. Selective chemical transformation, like selective oxidation, etching or alloy composition intermixing form a central core and a periphery having different vertical profiles of the refractive index. Therefore, the longitudinal VCSEL mode in the core is non-orthogonal to the surface-trapped mode in the periphery, and the two modes can be transformed into each other. Such transformation allows fabrication of a number of optoelectronic devices and systems like a single transverse mode VCSEL, an integrated optical circuit operating as an optical amplifier, an integrated optical circuit combining a VCSEL and a resonant cavity photodetector, etc.
-
公开(公告)号：US20170332071A1
公开(公告)日：2017-11-16
申请号：US15665609
申请日：2017-08-01
Applicant: Nikolay Ledentsov , Vitaly Shchukin
Inventor： Nikolay Ledentsov , Vitaly Shchukin
CPC classification number: H04N13/363 , G02B27/2221 , G03B17/54 , G03B21/28 , G03B21/53 , G03B35/22 , G06T19/006 , H04N13/128 , H04N13/322 , H04N13/324 , H04N13/361 , H04N13/395 , H04N13/398 , H04N2013/0081
Abstract: A laser system for generation of three-dimensional (3D) colored images is based on semiconductor laser sources generating laser light at a plurality of wavelengths. The laser source for each basic color range (red, green and blue) is formed on a single chip. The chip can be an array of the distributed feedback lasers or an array of distributed Bragg reflector lasers, each of which generates laser light at its own wavelength, or a COMB laser generating laser light at a plurality of wavelengths.All light illuminates a two-dimensional (2D) display, and the light transmitted through the display or reflected by the display at a given color range impinges on an optical unit, containing a first optical element, e.g., a lens or a mirror, the focal length of which is wavelength-sensitive. Light at different wavelengths forms 2D images at different depths. Then, once the images created by the display and the laser pulses at each wavelength are synchronized, all images of the given colored range are perceived by the human's eyes as a single 3D image of this color range.To fuse 3D images in red, green and blue that are formed at different positions, an optical element, e. g., a lens or a mirror is employed, the focal length of which is adjustable by mechanical motion, or deformation, or applying an electro-optic effect in an electric field. This optical element can be either the same first element with the wavelength-dependent focal length, or a different element. Then, once the light is switched between red, green and blue color ranges, the adjustable focal length of this element is adjusted such to compensate a change of the focal length of the first element, and the focal length of the entire optical unit is restored. Then the human's eyes average the perceived light and see a smoothly moving fully colored 3D image.
-
公开(公告)号：US20170201067A1
公开(公告)日：2017-07-13
申请号：US14104259
申请日：2013-12-12
Applicant: Vitaly Shchukin , Nikolay Ledentsov
Inventor： Vitaly Shchukin , Nikolay Ledentsov
CPC classification number: H01S5/0655 , H01S3/109 , H01S5/02288 , H01S5/141 , H01S5/2031 , H01S5/22 , H01S5/4062 , H01S5/4068 , H01S5/4081
Abstract: A semiconductor optoelectronic system contains a primary semiconductor optoelectronic system, a first wavefront, a set of diffracting elements, and a second wavefront. The primary semiconductor electronic system is a single laser of a set of gain chips, bars, or stacks coherently coupled in an external resonator, the system is capable to generate a single vertical mode single lateral mode laser light. The near field on the first wavefront in the immediate vicinity of the system contains illuminated spots and dark spots, the latter dominate. The set of diffracting element transforms the near field of the laser light, and, hence, also the far field pattern, providing a significantly smaller beam divergence and, respectively, a higher brightness.
-
10.发明授权公开(公告)号：US08447187B2
公开(公告)日：2013-05-21
申请号：US12929812
申请日：2011-02-17
Applicant: Nikolay Ledentsov , Vitaly Shchukin
Inventor： Nikolay Ledentsov , Vitaly Shchukin
IPC: H04B10/00
CPC classification number: H04B10/40
Abstract: An optoelectronic interconnect which includes optical transmitter and detector having capacitances below 150 femto-Farads each suitable for transmission of optical signals at speeds at and above 20 Gigabit per second at power consumption below 10 milliWatt per Gigabit per second.
Abstract translation: 一种光电互连，其包括光发射机和检测器，其具有低于150毫微微法拉的电容，每个毫微微法线适用于以千兆比特/秒的功率消耗低于10千兆瓦的每秒20吉比特速度下的光信号的传输。
-
-
-
-
-
-
-
-
-
Search Results
20
records
(took 0.011 seconds)
