TW448311B - Optical systems for projection display - Google Patents

Optical systems for projection display Download PDF

Info

Publication number
TW448311B
TW448311B TW089105994A TW89105994A TW448311B TW 448311 B TW448311 B TW 448311B TW 089105994 A TW089105994 A TW 089105994A TW 89105994 A TW89105994 A TW 89105994A TW 448311 B TW448311 B TW 448311B
Authority
TW
Taiwan
Prior art keywords
light
lens
reflected
light source
reflective elements
Prior art date
Application number
TW089105994A
Other languages
English (en)
Inventor
Simon Magarill
Original Assignee
Corning 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 Corning Inc filed Critical Corning Inc
Application granted granted Critical
Publication of TW448311B publication Critical patent/TW448311B/zh

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/142—Adjusting of projection optics
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0816—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements
    • G02B26/0833—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more reflecting elements the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/0875—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements
    • G02B26/0883—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light by means of one or more refracting elements the refracting element being a prism
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2066—Reflectors in illumination beam
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/28—Reflectors in projection beam
    • 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]
    • H04N9/3102—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators
    • H04N9/3105—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying all colours simultaneously, e.g. by using two or more electronic spatial light modulators
    • 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]
    • H04N9/3197—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using light modulating optical valves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor
    • H04N5/7416—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal
    • H04N5/7458—Projection arrangements for image reproduction, e.g. using eidophor involving the use of a spatial light modulator, e.g. a light valve, controlled by a video signal the modulator being an array of deformable mirrors, e.g. digital micromirror device [DMD]

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Projection Apparatus (AREA)
  • Lenses (AREA)

Description

44831 i 經濟部中央樣準局員工消費合作社印裝 Α7 Β7 五、發明説明（/) 發明領域： 本發明係關於投射顯示器之光學系統以及特別是關於 揭示於美國第5552922(’922)號專利形式之光學系統，該專 利在此加入作為參考之用。 發明背景： ’ 922專利揭示出由光源傳送照射光線至數位光線板 (DLP)之系統，以及再由DLP之11開"圖素傳送至投射透鏡。 雖然’ 922專利系統能夠成功地運作，在該系統中有兩項可 加以改良以減少價格以及更容易地製造出。 第一項係關於’ 922專利之表面18與20間傾斜空氣間隙 。光線由"開"圖素通過該空氣間隙，空氣間隙在DLP投射影 像中會產生散光以及彗差，除非空氣間隙寬度以及光楔能 夠小心地加以控制。空氣間隙之光楔以及寬度嚴格控制需 求使得製造該系統為更加困難。 第二項在於’ 922專利系統，由"開11圖素發出之光線通 過’922專利表面14,16,及18所界定出光學元件以及由該專 利表面12及20所界定出光學元件。此係指這些光學元件必 A由同_品質玻璃製造出以及令人滿意表面平坦度，表面位 置，漫射，雙折射性等嚴格之誤差。該規格提高整個系統價 格，因而為不想要的。 發明大要： ’ 鑑於先前說明，本發明一項目標在於提供改良光學系 統以傳送照明光線由光源至DLP以及再由DLPn開”圖素到達 技射透鏡。更特別地，本發明一項目標在於提供一種如同 本纸張尺;丨十國國家標牟（CNS ) Α4規格（210X297公釐） —' ~----—-- ； 裝 _ 訂 . 丨敗 (請先聞讀背面之注意事項再填寫本頁} 344331 ^ A7 B7 經濟部中央標準局員工消費合作社印衷 五、發明説明（i ) τ 922專利所揭示形式之系統，其能夠更容易地製造以及使 價格降低。 為了達成這些以及其他目標，本發明提供一種光學系 統，該系統包含··光源,DLP,投射透鏡，具有第一及第二表面 相離之稜鏡，在其中第一及第二分隔表面，光源，DLP，以及 投射透鏡彼此相對使得光源發出光線通過第一及第二分隔 表面到達DLP，由DLP”開"或”第一位置"反射之光線在第二 相隔表面處在内部以一個角度反射朝向投射透鏡使得光線 在投射透鏡可接受之角度範圍内，以及由DLP"閉’1或"第二 位置Ν反射之光線由DLP”閉"或"第二位置”反射之光線在第 二相隔表面處在内部以一個角度反射朝向投射透鏡使得光 線不在投射透鏡可接受之角度内，或通過稜鏡使得光線在 可接受角度範圍外（例如參閱圖3最上側光束41)。 附圖簡單說明： 第一圖（圖1)為示意圖，其顯示出光線由光源傳送到本 發明DLP。 第二圖（圖2)為示意圖，其顯示出本發明光線由dlp”開 ”圖素光線通至投射透鏡。 第三圖（圖3)為示意圖，其顯示出本發明dlP"閉"圖素 光線之光線路徑。 先前附圖構成說明書一部份，其顯示出本發明優先實 施例以及隨同說明作為解釋本發明之原理。人們了解附圖 以及說明只作為範例性以及並非作為限制本發明。 附圖數字符號說明： 本紙張尺度適用中國國家標準（CNS) Αί)規格（21〇Χ297公釐） (請先聞讀背面之注意事項再填寫本頁) •裝 'ΪΤ 4483 1 Α7 Β7 經濟部中央標準局員工消費合作社印製 五、發明説明（3 ) 稜鏡13;棱鏡組件15,17;第一分隔表面19;第二分 隔表面21;斜線23;稜鏡進入表面25;稜鏡進八/離開表 面27;稜鏡離開表面29;照明光線31;照明系統33;DLP 35;由”開"圖素反射之光線37;投射透鏡39;由”閉”圖素 反射之光線41;由"閉"圖素發出之光線43;DLP蓋板45。 優先實施例說明： 如附圖所示，棱鏡13包含兩個部份或元件15,17,其在 稜鏡斜邊23處由空氣薄膜所隔離。元件15表面19及元件17 表面21彼此沿著該斜邊以及分別地構成先前所提及第一及 第二分隔表面。 如圖1所示，由照明系統33發出光線31經由侧邊25進入 稜鏡10。在稜鏡斜邊23上該光線入射肖度小於臨界角使得 該光線通過斜邊23以及照射DLP35。 如圖2所示，在”開”位置上圖素反射圖1入射照明光線 31，其方向垂直於DLP主動區域。該光線37入射於空氣間隙 斜邊角度大於臨界角以及因而該光線1 〇 〇%由該斜邊反射。 特別地，當與空氣折射率比較時由DLP發出反射光線37投射 至元件17表面21之角度大於元件折射率所界定之臨界角。 光線37由稜鏡13離開通過側邊29,其為側邊27之反射 影像°侧邊27與29關係係指沿著"開"圖素反射光束37之稜 鏡元件17有效地為平行平面板。此係指只有在影像路徑中 稜鏡元件17並不會形成彗差或散光。 投射透鏡39位於侧邊29後以捕捉由”開圖素發出光線 以及產生所需要影像於觀看銀幕上(並未顯示出）。 本紙張尺度適财關家轉（CNS ) A4^_ < 21QX 297公楚） (請先閲讀背命之注意事項再填寫本頁) -裝. 4483 經濟部中央標準局員工消贤合作社印製 A7 B7 五'發明説明（十） 如圖3所示，在"閉”位置中圖素反射圖丨入射照明光線 31之方向將使得光線並不會有效地進入投射透鏡39進入光 闌（參閱例如圖3光線43)。即由"閉"圖素發出光線41並不 在投射透鏡可接受之角度内。 實際上，稜鏡側邊25, 27,及29具有傳統防止反射之塗 膜使Fresnel反射減為最低。同時，分隔表面ig，21具有防 止反射塗膜使入射角最佳化而接近臨界角以減小照明光線 31 之 Fresnel 損耗。 表面19及21能夠由低折射率塗膜而不使用空氣層隔離 。為了在表面21處保持大的臨界角，元件17應該由高折射 率玻璃製造出。元件15應該由類似玻璃製造出以避免將光 色敏以及其他像差加入照明光線31内。該塗膜優點包含稜 鏡元件容易組裝以及容易去除由於分隔表面灰塵及/或水 份污染產生之問題。該污染會破壞表面21處全反射之能力 而導引光線進入投射透鏡以及使光線產生高損耗。 如圖1 -3所示，DLP通常由蓋板45保護。假如需要的情 況下，蓋板能夠黏附至表面27,因而由系統去除兩個玻璃/ 空氣面、其將減小Fresnel損耗。 如先前所說明，先前所說明投射系統構造將達成下列 優點： (1) 沿著斜邊23空氣間隙寬度以及光楔並不會影響由 ”開"位置至投射透鏡之光線路徑。因而，對於該傾斜空氣 間隙之散光及彗差可加以消除。 (2) 只有·一個複鏡元件17在影像光線路徑令運作。因 本紙張尺度適用中國國家標準（CNS ) Μ说格（2丨0各297公釐） --------- I;---裝------訂-------線 (请先閱讀背面之注意事項再填寫本頁) 44831 A7 B7 五、發明説明（f ) 而稜鏡元件15㈣由較低品質麵製造出喊面平坦度以 及位置，麟，倾雜料需絲狀鮮。在該情況下 ，裝置之整體價格將降低。 雖然本發·先實關已加以說明胁此技術者了 解更進步之實細例，但是其並不會脫離下列申請專利範 圍所界定之本發明精神與範圍。 (請先閲讀背面之注意事項再填寫本頁) .裝. 經濟部中失標準局貝工消費合作社印製 本紙張尺度適用中国國家標準（CNS) ΑΛ规格（210x297公釐） d

Claims (1)

  1. 4483 ? 1 A8 B8 C8 D8 六、申請專利範圍 L 一種影像投射系統，其包含： (a) 光源，其提供照明光線； (b) —組多個選擇性可調整反射元件，其排列於共同平面 中，硪元件可調整於至少第一位置與第二位置之間； (c) —個透鏡，其主要平面平行於共同平面；以及 (d) —個稜鏡位於透鏡以及一組多個反射元件之間； 改良處為透鏡具有可接受角度以及稜鏡包含第一及第二 分隔表面，其均朝向光源，一組多個反射元件，以及透鏡使 得： (i) 由光源發出光線通過第一及第二分隔表面到達一組 多個反射元件，以及 (ii) 在第一位置由反射元件反射之光線在第二分隔表面 處反射，其方向在透鏡可接受角度範圍内。 2_依據申請專利範圍第1項之影像投射系統，其中在第二位 置中由反射元件反射之光線在第二分隔表面處反射，其方 向並不在透鏡可接受角度範圍内。 -----ί ^---装---：---訂-------^線 (請先閲讀背面之注<1^項再填寫本頁) 經濟部中央標隼局員工消費合作社印裝 衣纸浪尺度適用中國國家標準（CNS ) Α4規格（210Χ297公釐）
TW089105994A 1999-06-29 2000-03-29 Optical systems for projection display TW448311B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14144399P 1999-06-29 1999-06-29

Publications (1)

Publication Number Publication Date
TW448311B true TW448311B (en) 2001-08-01

Family

ID=22495716

Family Applications (1)

Application Number Title Priority Date Filing Date
TW089105994A TW448311B (en) 1999-06-29 2000-03-29 Optical systems for projection display

Country Status (7)

Country Link
US (1) US6461000B1 (zh)
EP (1) EP1196819A4 (zh)
JP (1) JP5089841B2 (zh)
KR (1) KR100702736B1 (zh)
CN (1) CN1322370C (zh)
TW (1) TW448311B (zh)
WO (1) WO2001001195A1 (zh)

Families Citing this family (84)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996036184A1 (en) * 1995-05-11 1996-11-14 Digital Projection Limited Projection device
JP2002350775A (ja) * 2001-05-30 2002-12-04 Fuji Photo Optical Co Ltd プロジェクタ装置
US6726332B2 (en) * 2001-11-28 2004-04-27 3M Innovative Properties Company TIR prism for DMD projector
US7207678B2 (en) * 2001-12-31 2007-04-24 Texas Instruments Incorporated Prism for high contrast projection
MXPA04008145A (es) * 2002-02-28 2004-11-26 3M Innovative Properties Co Divisores compuestos de haces de polarizacion.
US6634756B1 (en) * 2002-06-27 2003-10-21 Koninklijke Philips Electronics N.V. Beam-splitter folded path for rear projection displays
TW586020B (en) * 2002-09-03 2004-05-01 Young Optics Inc Optical system for projection display apparatus
KR20070034636A (ko) * 2004-07-22 2007-03-28 톰슨 라이센싱 1개의 이미저 마이크로디스플레이를 위한 개별 고속 스위칭발광 구조
US20060139730A1 (en) * 2004-12-23 2006-06-29 Oehler Peter R Illumination system with compact turning prism and projection system using same
TWI348634B (en) * 2006-07-18 2011-09-11 Young Optics Inc Optical mouse
TWI331251B (en) * 2006-09-22 2010-10-01 Coretronic Corp Optical projection apparatus and total internal reflection prism thereof
CN100443953C (zh) * 2006-10-25 2008-12-17 浙江大学 同轴观察紫外投影照射装置
US8210689B2 (en) * 2007-12-31 2012-07-03 3M Innovative Properties Company Projection system
US9158116B1 (en) 2014-04-25 2015-10-13 Osterhout Group, Inc. Temple and ear horn assembly for headworn computer
US8220930B2 (en) * 2008-03-25 2012-07-17 Shanghai Lexvu Opto Microelectronics Technology Co., Ltd. Integrated opto-electronic device and portable reflective projection system
US8382293B2 (en) * 2008-05-05 2013-02-26 3M Innovative Properties Company Light source module
US9952664B2 (en) 2014-01-21 2018-04-24 Osterhout Group, Inc. Eye imaging in head worn computing
US9400390B2 (en) 2014-01-24 2016-07-26 Osterhout Group, Inc. Peripheral lighting for head worn computing
US9229233B2 (en) 2014-02-11 2016-01-05 Osterhout Group, Inc. Micro Doppler presentations in head worn computing
US9366867B2 (en) 2014-07-08 2016-06-14 Osterhout Group, Inc. Optical systems for see-through displays
US20150205111A1 (en) 2014-01-21 2015-07-23 Osterhout Group, Inc. Optical configurations for head worn computing
US9715112B2 (en) 2014-01-21 2017-07-25 Osterhout Group, Inc. Suppression of stray light in head worn computing
US20150277120A1 (en) 2014-01-21 2015-10-01 Osterhout Group, Inc. Optical configurations for head worn computing
US9965681B2 (en) 2008-12-16 2018-05-08 Osterhout Group, Inc. Eye imaging in head worn computing
US9298007B2 (en) 2014-01-21 2016-03-29 Osterhout Group, Inc. Eye imaging in head worn computing
US8556472B2 (en) 2010-09-28 2013-10-15 Simon Magarill Light reflectors and flood lighting systems
US11227294B2 (en) 2014-04-03 2022-01-18 Mentor Acquisition One, Llc Sight information collection in head worn computing
US9299194B2 (en) 2014-02-14 2016-03-29 Osterhout Group, Inc. Secure sharing in head worn computing
US9448409B2 (en) 2014-11-26 2016-09-20 Osterhout Group, Inc. See-through computer display systems
US10684687B2 (en) 2014-12-03 2020-06-16 Mentor Acquisition One, Llc See-through computer display systems
US9841599B2 (en) 2014-06-05 2017-12-12 Osterhout Group, Inc. Optical configurations for head-worn see-through displays
US9594246B2 (en) 2014-01-21 2017-03-14 Osterhout Group, Inc. See-through computer display systems
US11103122B2 (en) 2014-07-15 2021-08-31 Mentor Acquisition One, Llc Content presentation in head worn computing
US10649220B2 (en) 2014-06-09 2020-05-12 Mentor Acquisition One, Llc Content presentation in head worn computing
US20150277118A1 (en) 2014-03-28 2015-10-01 Osterhout Group, Inc. Sensor dependent content position in head worn computing
US10191279B2 (en) 2014-03-17 2019-01-29 Osterhout Group, Inc. Eye imaging in head worn computing
US9671613B2 (en) 2014-09-26 2017-06-06 Osterhout Group, Inc. See-through computer display systems
US9746686B2 (en) 2014-05-19 2017-08-29 Osterhout Group, Inc. Content position calibration in head worn computing
US9939934B2 (en) 2014-01-17 2018-04-10 Osterhout Group, Inc. External user interface for head worn computing
US9829707B2 (en) 2014-08-12 2017-11-28 Osterhout Group, Inc. Measuring content brightness in head worn computing
US9575321B2 (en) 2014-06-09 2017-02-21 Osterhout Group, Inc. Content presentation in head worn computing
US9810906B2 (en) 2014-06-17 2017-11-07 Osterhout Group, Inc. External user interface for head worn computing
US10254856B2 (en) 2014-01-17 2019-04-09 Osterhout Group, Inc. External user interface for head worn computing
US9529195B2 (en) 2014-01-21 2016-12-27 Osterhout Group, Inc. See-through computer display systems
US20160019715A1 (en) 2014-07-15 2016-01-21 Osterhout Group, Inc. Content presentation in head worn computing
US9366868B2 (en) 2014-09-26 2016-06-14 Osterhout Group, Inc. See-through computer display systems
US12105281B2 (en) 2014-01-21 2024-10-01 Mentor Acquisition One, Llc See-through computer display systems
US9651784B2 (en) 2014-01-21 2017-05-16 Osterhout Group, Inc. See-through computer display systems
US11737666B2 (en) 2014-01-21 2023-08-29 Mentor Acquisition One, Llc Eye imaging in head worn computing
US9615742B2 (en) 2014-01-21 2017-04-11 Osterhout Group, Inc. Eye imaging in head worn computing
US9753288B2 (en) 2014-01-21 2017-09-05 Osterhout Group, Inc. See-through computer display systems
US12093453B2 (en) 2014-01-21 2024-09-17 Mentor Acquisition One, Llc Eye glint imaging in see-through computer display systems
US9836122B2 (en) 2014-01-21 2017-12-05 Osterhout Group, Inc. Eye glint imaging in see-through computer display systems
US20150206173A1 (en) 2014-01-21 2015-07-23 Osterhout Group, Inc. Eye imaging in head worn computing
US11892644B2 (en) 2014-01-21 2024-02-06 Mentor Acquisition One, Llc See-through computer display systems
US9310610B2 (en) 2014-01-21 2016-04-12 Osterhout Group, Inc. See-through computer display systems
US9529199B2 (en) 2014-01-21 2016-12-27 Osterhout Group, Inc. See-through computer display systems
US9494800B2 (en) 2014-01-21 2016-11-15 Osterhout Group, Inc. See-through computer display systems
US11487110B2 (en) 2014-01-21 2022-11-01 Mentor Acquisition One, Llc Eye imaging in head worn computing
US11669163B2 (en) 2014-01-21 2023-06-06 Mentor Acquisition One, Llc Eye glint imaging in see-through computer display systems
US20150205135A1 (en) 2014-01-21 2015-07-23 Osterhout Group, Inc. See-through computer display systems
US9766463B2 (en) 2014-01-21 2017-09-19 Osterhout Group, Inc. See-through computer display systems
US9401540B2 (en) 2014-02-11 2016-07-26 Osterhout Group, Inc. Spatial location presentation in head worn computing
US20150241963A1 (en) 2014-02-11 2015-08-27 Osterhout Group, Inc. Eye imaging in head worn computing
US20160187651A1 (en) 2014-03-28 2016-06-30 Osterhout Group, Inc. Safety for a vehicle operator with an hmd
US10853589B2 (en) 2014-04-25 2020-12-01 Mentor Acquisition One, Llc Language translation with head-worn computing
US9651787B2 (en) 2014-04-25 2017-05-16 Osterhout Group, Inc. Speaker assembly for headworn computer
US9672210B2 (en) 2014-04-25 2017-06-06 Osterhout Group, Inc. Language translation with head-worn computing
US9423842B2 (en) 2014-09-18 2016-08-23 Osterhout Group, Inc. Thermal management for head-worn computer
US10663740B2 (en) 2014-06-09 2020-05-26 Mentor Acquisition One, Llc Content presentation in head worn computing
US9684172B2 (en) 2014-12-03 2017-06-20 Osterhout Group, Inc. Head worn computer display systems
USD743963S1 (en) 2014-12-22 2015-11-24 Osterhout Group, Inc. Air mouse
USD751552S1 (en) 2014-12-31 2016-03-15 Osterhout Group, Inc. Computer glasses
USD753114S1 (en) 2015-01-05 2016-04-05 Osterhout Group, Inc. Air mouse
US20160239985A1 (en) 2015-02-17 2016-08-18 Osterhout Group, Inc. See-through computer display systems
CA2949845C (en) * 2015-12-04 2020-10-13 AGM Automotive, LLC Illumination device for projecting light in a predetermined illumination pattern on a surface
US10684478B2 (en) 2016-05-09 2020-06-16 Mentor Acquisition One, Llc User interface systems for head-worn computers
US10466491B2 (en) 2016-06-01 2019-11-05 Mentor Acquisition One, Llc Modular systems for head-worn computers
US9910284B1 (en) 2016-09-08 2018-03-06 Osterhout Group, Inc. Optical systems for head-worn computers
US10824253B2 (en) 2016-05-09 2020-11-03 Mentor Acquisition One, Llc User interface systems for head-worn computers
US10422995B2 (en) 2017-07-24 2019-09-24 Mentor Acquisition One, Llc See-through computer display systems with stray light management
US10578869B2 (en) 2017-07-24 2020-03-03 Mentor Acquisition One, Llc See-through computer display systems with adjustable zoom cameras
US11409105B2 (en) 2017-07-24 2022-08-09 Mentor Acquisition One, Llc See-through computer display systems
US10969584B2 (en) 2017-08-04 2021-04-06 Mentor Acquisition One, Llc Image expansion optic for head-worn computer

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8902205A (nl) * 1989-09-01 1991-04-02 Philips Nv Projektiesysteem.
JPH04270140A (ja) * 1990-06-21 1992-09-25 Johnson Matthey Inc シーリングガラス組成物および導電性成分を含む同組成物
JP2765780B2 (ja) * 1992-05-08 1998-06-18 株式会社キビ 畳縁折曲方法及び装置
US5552922A (en) * 1993-04-12 1996-09-03 Corning Incorporated Optical system for projection display
US5309188A (en) * 1993-05-21 1994-05-03 David Sarnoff Research Center, Inc. Coupling prism assembly and projection system using the same
JP3582732B2 (ja) * 1994-02-22 2004-10-27 テキサス インスツルメンツ インコーポレイテツド 投影システム
US5442414A (en) * 1994-05-10 1995-08-15 U. S. Philips Corporation High contrast illumination system for video projector
JPH08304706A (ja) * 1995-04-26 1996-11-22 Texas Instr Inc <Ti> 空間光変調器のためのイルミネーション光学
WO1996036184A1 (en) * 1995-05-11 1996-11-14 Digital Projection Limited Projection device
JPH08313864A (ja) * 1995-05-23 1996-11-29 Texas Instr Inc <Ti> プロジエクタ装置
JP3639388B2 (ja) * 1996-09-09 2005-04-20 三洋電機株式会社 投写型映像表示装置
US5946139A (en) * 1998-04-06 1999-08-31 Unic View Ltd. Compact monitor
US6249387B1 (en) 1998-05-13 2001-06-19 Texas Instruments Incorporated Stable enhanced contrast optical system for high resolution displays
JP4983032B2 (ja) * 2006-02-08 2012-07-25 ソニー株式会社 復調テーブル、復調装置および方法、プログラム、並びに記録媒体
JP4913528B2 (ja) * 2006-10-04 2012-04-11 日立アロカメディカル株式会社 超音波診断装置
JP5442414B2 (ja) * 2009-12-08 2014-03-12 タカノ株式会社 切削実習用模型歯
JP5552922B2 (ja) * 2010-06-29 2014-07-16 セントラル硝子株式会社 核分裂生成物の分離材及びその製造方法、並びに該分離材を用いた核分裂生成物の分離方法
WO2014103875A1 (ja) * 2012-12-27 2014-07-03 アルバック成膜株式会社 位相シフトマスクおよびその製造方法

Also Published As

Publication number Publication date
KR20020021146A (ko) 2002-03-18
CN1322370C (zh) 2007-06-20
CN1375076A (zh) 2002-10-16
JP2003503755A (ja) 2003-01-28
KR100702736B1 (ko) 2007-04-03
WO2001001195A1 (en) 2001-01-04
JP5089841B2 (ja) 2012-12-05
EP1196819A1 (en) 2002-04-17
US6461000B1 (en) 2002-10-08
EP1196819A4 (en) 2006-10-11

Similar Documents

Publication Publication Date Title
TW448311B (en) Optical systems for projection display
US6764181B2 (en) Polarization arrangement
JP3460716B1 (ja) 画像表示装置
US6719426B2 (en) Compound polarization beam splitters
US20030007105A1 (en) Optical systems for reflective lcds
US4173399A (en) Compact optical viewer for microfiche or cassette
JP2022554051A (ja) 非点収差光学系を採用したディスプレイおよび収差補償
EP0762781B1 (en) Optical apparatus, projection display apparatus and optical compensation method
GB2343966A (en) Bent optical projection lens unit for liquid crystal display
US1525658A (en) Optical instrument
US8215778B2 (en) Projector apparatus
US4109263A (en) Compact prism camera
EP1582072A1 (en) Optical cores and projection systems containing the optical core
US4372656A (en) High efficiency optical projector for 3D motion pictures
US2231378A (en) Motion picture printing machine
TW457396B (en) Improvement methods and their apparatus in ghost image on the projected image or its periphery
JPH09138369A (ja) 光学装置、光学補正方法及び投写型表示装置
US3744391A (en) Camera with a stigmatic fresnel optical element
US3837732A (en) Partially transparent plates for increased image contrast
US3760704A (en) Reflex camera and viewer with a folded optical path
JP3437919B2 (ja) 反射型プロジェクター
JP2006189884A (ja) 省スペースタイプの背面投写型表示装置
GB1427426A (en) Optical projection apparatus
JPH0262848B2 (zh)
JPH08248309A (ja) 投写レンズおよび投写型表示装置

Legal Events

Date Code Title Description
GD4A Issue of patent certificate for granted invention patent
MK4A Expiration of patent term of an invention patent