MX9501639A - Un sistema de proyeccion de valvula luminica de alta eficiencia. - Google Patents

Un sistema de proyeccion de valvula luminica de alta eficiencia.

Info

Publication number
MX9501639A
MX9501639A MX9501639A MX9501639A MX9501639A MX 9501639 A MX9501639 A MX 9501639A MX 9501639 A MX9501639 A MX 9501639A MX 9501639 A MX9501639 A MX 9501639A MX 9501639 A MX9501639 A MX 9501639A
Authority
MX
Mexico
Prior art keywords
pixel
spaces
pixels
light valve
image
Prior art date
Application number
MX9501639A
Other languages
English (en)
Inventor
Eugene Dolgoff
Malcolm J Macfarlane
Pal B Christie
Original Assignee
Projectavision Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Projectavision Inc filed Critical Projectavision Inc
Publication of MX9501639A publication Critical patent/MX9501639A/es

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3152—Modulator illumination systems for shaping the light beam
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/305—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using lenticular lenses, e.g. arrangements of cylindrical lenses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/363—Image reproducers using image projection screens
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/189—Recording image signals; Reproducing recorded image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/194—Transmission of image signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/204—Image signal generators using stereoscopic image cameras
    • H04N13/239—Image signal generators using stereoscopic image cameras using two 2D image sensors having a relative position equal to or related to the interocular distance
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/261—Image signal generators with monoscopic-to-stereoscopic image conversion
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/20—Image signal generators
    • H04N13/286—Image signal generators having separate monoscopic and stereoscopic modes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/324—Colour aspects

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Liquid Crystal (AREA)
  • Video Image Reproduction Devices For Color Tv Systems (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Una válvula lumínica tal como un LCD de matriz activa entre polarizadores cruzados, utilizando, por ejemplo, transistores individuales para controlar cada "área de pixel" del LCD, y elementos de almacenaje para almacenar datos de señal de video para cada pixel, con "espacios muertos" recubiertos opticamente entre los pixeles, para eliminar la interferencia de campo eléctrica y el sangrado pasante de luz que no lleva ninguna informacion, se ilumina con una fuente de luz independiente de brillo que crea una imagen de video proyectada medianteopticos de proyeccion especializada sobre una pantalla interna o externa, sin distorsiones, sin importar el ángulo de proyeccion sobre la pantalla. El uso de vertederos de calor, recubrimientos IR reflexivos, opticos absorbentes de calor, fluido opcional y un transistor de pixel controlado por una resistencia térmica desvía la inyeccion de voltaje al servocircuito y estabiliza el desempeño de imagen, manteniendo niveles exactos de color y contraste a medida que cambia la temperatura de LCD. En una modalidad de la presente invencion, el uso de un LCD a todo color con una cavidad escalonada, que produce diferentes grosores del LCD para las diferentes longitudes de onda que pasan a través de éste, permite una correspondencia lineal entre las longitudes de onda que pasan a través del LCD para producir un negro verdadero, un alto contraste y un rendimiento de color parecido al CRT. Se utiliza un arreglo de espejo dicroico para sobreponer pixeles coloreados de manera diferente en la imagen proyectada. El uso de espejo a raya duplica los pixeles, en donde es necesario, eliminando los espacios entre pixeles, creando una imagen continua sin rayas ni puntos aparentes. También se describe una pantalla especial tipo persiana veneciana y también se explican métodos para usar el sistema para ver un video tridimensional.
MX9501639A 1994-04-04 1995-04-03 Un sistema de proyeccion de valvula luminica de alta eficiencia. MX9501639A (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US22347994A 1994-04-04 1994-04-04

Publications (1)

Publication Number Publication Date
MX9501639A true MX9501639A (es) 1997-05-31

Family

ID=22836676

Family Applications (1)

Application Number Title Priority Date Filing Date
MX9501639A MX9501639A (es) 1994-04-04 1995-04-03 Un sistema de proyeccion de valvula luminica de alta eficiencia.

Country Status (6)

Country Link
EP (1) EP0676902A3 (es)
KR (1) KR950034021A (es)
CN (1) CN1117633A (es)
CA (1) CA2146060A1 (es)
MX (1) MX9501639A (es)
TW (1) TW269010B (es)

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TWI484119B (zh) * 2012-08-14 2015-05-11 Chroma Ate Inc 人造光源
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KR101734094B1 (ko) * 2015-03-09 2017-05-11 국립암센터 증강현실영상 투영 시스템
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WO2018140218A1 (en) * 2017-01-25 2018-08-02 NEXA3D Inc. Method and apparatus using light engines for photo-curing of liquid polymers to form three-dimensional objects
CN106872408B (zh) * 2017-04-26 2023-05-30 赣南师范大学 一种浮游生物成像检测装置
CN107179612B (zh) * 2017-05-26 2023-06-30 华侨大学 一种新型无串扰和无分辨率损失的自由3d显示器
CN108172161B (zh) * 2017-12-28 2022-05-17 努比亚技术有限公司 基于柔性屏的显示方法、移动终端及计算机可读存储介质
KR102180581B1 (ko) * 2018-11-08 2020-11-18 경북대학교 산학협력단 편광 의존형 광 스티어링 장치 기반 와이드 프로젝션 디스플레이 시스템
CN109471324B (zh) * 2018-11-24 2024-03-29 深圳阜时科技有限公司 投影装置及其设备和方法
CN113544557A (zh) * 2019-03-05 2021-10-22 德克萨斯仪器股份有限公司 光隧道
CN111757086A (zh) * 2019-03-28 2020-10-09 杭州海康威视数字技术股份有限公司 有源双目相机、rgb-d图像确定方法及装置
CN109839791A (zh) * 2019-03-29 2019-06-04 北京镭创高科光电科技有限公司 一种投影系统及其消除摩尔纹的方法
CN111308643B (zh) * 2019-12-25 2024-04-12 Oppo广东移动通信有限公司 摄像头模组、潜望式摄像头模组、摄像头组件及电子装置
CN112452251B (zh) * 2020-10-27 2021-12-14 山东大学 月牙形及其变形陶瓷微颗粒、其制备方法、应用及制备装置
CN115484416B (zh) * 2021-06-15 2023-10-31 中移(成都)信息通信科技有限公司 一种用于摄像装置的保护装置及预警系统
CN113625523B (zh) * 2021-08-18 2022-11-04 青岛海信激光显示股份有限公司 一种激光器和激光投影系统
WO2023020595A1 (zh) * 2021-08-18 2023-02-23 青岛海信激光显示股份有限公司 激光器和激光投影设备
CN114404084B (zh) * 2022-01-21 2024-08-02 北京大学口腔医学院 一种扫描装置及扫描方法
CN115015040B (zh) * 2022-08-09 2022-11-11 中国空气动力研究与发展中心高速空气动力研究所 一种分体积木和功能分层式结构的多适用型纹影系统
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Also Published As

Publication number Publication date
CN1117633A (zh) 1996-02-28
KR950034021A (ko) 1995-12-26
CA2146060A1 (en) 1995-10-05
EP0676902A2 (en) 1995-10-11
TW269010B (es) 1996-01-21
EP0676902A3 (en) 1996-05-08

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