CN1217548C - 滚动多条纹彩色照明系统 - Google Patents
滚动多条纹彩色照明系统 Download PDFInfo
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- CN1217548C CN1217548C CN018023215A CN01802321A CN1217548C CN 1217548 C CN1217548 C CN 1217548C CN 018023215 A CN018023215 A CN 018023215A CN 01802321 A CN01802321 A CN 01802321A CN 1217548 C CN1217548 C CN 1217548C
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- 238000005286 illumination Methods 0.000 title claims description 15
- 238000003491 array Methods 0.000 claims description 6
- 239000003086 colorant Substances 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004883 computer application Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000004446 light reflex Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 210000001525 retina Anatomy 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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]
-
- 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
- H04N9/3111—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources
- H04N9/3117—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using two-dimensional electronic spatial light modulators for displaying the colours sequentially, e.g. by using sequentially activated light sources by using a sequential colour filter producing two or more colours simultaneously, e.g. by creating scrolling colour bands
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Liquid Crystal (AREA)
- Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
- Projection Apparatus (AREA)
- Video Image Reproduction Devices For Color Tv Systems (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
已经证实利用三色(红、蓝和绿)滚动彩色条纹单板滚动彩色投影系统对于电视是足够的。但是,计算机制图显示器更倾向于彩色赝象。为了抑制这些赝象,本发明提高了滚动彩色条纹的数量。一种实施方式是利用双凸透镜列将三色条纹分散成多个带,然后利用第二透镜列校准多个条纹。利用原有系统中的旋转棱镜旋转校正后的条纹。
Description
技术领域
本发明涉及一种滚动彩色照明系统。
这种滚动彩色照明系统可以用在彩色投影系统中。
背景技术
滚动彩色照明是由Philips Electronics North America Corporation在单板LC投影系统中独创并实施的,显示出认为可适用于电视的图像质量。由于某些计算机产生的图形可能引起颜色分散,和自然的电视图像相比,为所有颜色所共有的赝象的连续显示要容易的多,因此和电视相比、计算机应用是更为需要的。这种颜色分散使得颜色连续系统更难进入个人计算机监视器市场。
通过快速的眼睛移动例如眨眼可以在高反差图形中观察颜色闪烁。人类对于这种赝象的敏感度可以解释为视网膜周围视觉对于彩色光和适应于中央视觉系统的黑白色图像的曝光之间的差别。
作为原有技术,可以提及:US5845981A;EP601666;EP492721;US5428467;WO95/26110;Kokai08-211358,08-022006。这些参考文献中没有一篇显示了连续滚动体系机构,而此结构正是本发明的滚动彩色照明系统的特点。
发明内容
本发明的目的是提供一种抑制在彩色投影系统中的彩色赝象的滚动条纹照明系统。
此目的通过根据本发明的滚动彩色照明系统而实现。
按照本发明,提供了一种滚动彩色照明系统,包括用于产生彩色条纹的装置和用于滚动彩色条纹的装置,其特征在于,所述用于产生彩色条纹的装置包括一个双面凸的透镜列,用于产生多于三个的彩色条纹,所述用于滚动彩色条纹的装置包括一个旋转棱镜,用于滚动所述多于三个的彩色条纹。
已经证实利用三种(红、蓝和绿-RGB)滚动颜色带的单板滚动彩色投影系统对于电视图形是足够的。但是,计算机制图更倾向于彩色赝象。为了抑制这些赝象,本发明增加了滚动彩色带的数量。此滚动多条纹彩色照明系统的一种实施方式包括:利用双面凸的透镜列将三种颜色分散为多个条纹,利用第二透镜列校准多个条纹,利用原有系统中的旋转棱镜滚动校准后的条纹。
本发明的滚动多条纹彩色照明系统的另一种实施方式包括偏振分光器,此偏振分光器通过透镜子系统和1/4波长板将光反射到旋转鼓,多个彩色条纹从旋转鼓通过透镜子系统和1/4波长板向后反射回来,旋转鼓能够使返回光穿过偏振分光器,所产生的返回光的多个彩色条纹径直达到光阀之上,产生彩色光的滚动图形。
通过在快速眼睛移动期间将眼睛暴露于多颜色而不是单色条纹图像,除去了在外围视觉区域中不同颜色的印记。此滚动颜色系统使其尤其适应于这种解决方案。与在其它颜色连续系统中采用的“写、等待、暴露(expose)”的顺序不同,本发明的系统能够在不增加费用的情况下对任意数目的彩色条纹进行连续的寻址。
根据本发明的图像处理系统的另一个优选实施例在从属权利要求中说明。
本发明的这些和其它方面参考下述实施例的描述将更为显而易见。
附图说明
图1示出包括用于在显示器上形成多个颜色条纹的照明光学系统的的彩色投影系统,
图2示出用于在显示器上形成多个彩色条纹的另一种照明光学系统的局部。
具体实施方式
图1显示了彩色投影系统,包括灯10、反射器11、狭缝12、偏振分光器13、透镜14、1/4波长板15、透镜16、旋转鼓17、透镜18、光阀19。
在图1中,由反射器11反射来自并引导灯10的光穿过狭缝开口12并到达偏振分光器13之上,在此处光通过汇聚透镜14、1/4波长板15和汇聚透镜16反射到旋转鼓17上。多个彩色条纹从旋转鼓17通过透镜16和1/4波长板向后反射回来,1/4波长板能够使返回光在穿过透镜14之后穿过偏振分光器13。然后所产生的返回的多个彩色条纹径直穿过汇聚透镜18到达光阀19,形成了彩色光的滚动图形。鼓17以相对低的速率旋转。相应于一个RGB条纹周期的运动需要此板的全面RGB更新。
图2显示了用于形成多个彩色条纹的另一个照明光学系统的局部。由白光的单束借助二色性的滤光器(未示出)形成的三色光束30利用透镜列31分散成一列彩色条纹。第二列32与彩色条纹共面,重新校准轴外光,这样进入折射扫描棱镜33的光是远心的。随着棱镜33的旋转,条纹图形的虚像垂直移动。在经过中续透镜35之后,此第二光源成像在光阀36之上。
上面已经显示并描述了新型滚动多条纹彩色照明系统,它实现了此前探索的所有目的和优点。然而,对于本领域的普通技术人员而言,在考虑了在本发明的优选实施例中公开的这些具体描述之后,对于本发明主题的许多变化、修改、改进和其它用途和应用是显而易见的。在不脱离本发明的实质和范围的所有这种变化、修改、改进和其它用途和应用均认为在本发明的范围之内,它们仅由以下描述的权利要求来限制。
Claims (4)
1.一种滚动彩色照明系统,包括用于产生彩色条纹的装置和用于滚动彩色条纹的装置,其特征在于,所述用于产生彩色条纹的装置包括一个双面凸的透镜列,用于产生多于三个的彩色条纹,所述用于滚动彩色条纹的装置包括一个旋转棱镜,用于滚动所述多于三个的彩色条纹。
2.根据权利要求1所述的滚动彩色照明系统,其特征在于,所述三个彩色是红、蓝和绿。
3.根据权利要求1所述的滚动彩色照明系统,其特征在于还包括:一个第二透镜列,用于校准所述多于三个的彩色条纹。
4.一种包括权利要求1所述的滚动彩色照明系统的彩色投影系统。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/635,112 US6540362B1 (en) | 2000-08-09 | 2000-08-09 | Scrolling multi-stripe color illumination system |
US09/635,112 | 2000-08-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1401190A CN1401190A (zh) | 2003-03-05 |
CN1217548C true CN1217548C (zh) | 2005-08-31 |
Family
ID=24546495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN018023215A Expired - Fee Related CN1217548C (zh) | 2000-08-09 | 2001-07-20 | 滚动多条纹彩色照明系统 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6540362B1 (zh) |
EP (1) | EP1310104A2 (zh) |
JP (1) | JP2004506242A (zh) |
KR (1) | KR20020036857A (zh) |
CN (1) | CN1217548C (zh) |
WO (1) | WO2002013541A2 (zh) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100727905B1 (ko) * | 2000-06-26 | 2007-06-14 | 삼성전자주식회사 | 화상투사장치 |
TW472225B (en) * | 2001-06-08 | 2002-01-11 | Shiu-Hua Huang | Sequential type projection apparatus |
JP2003307704A (ja) * | 2002-04-17 | 2003-10-31 | Hitachi Ltd | 映像表示装置 |
KR20040011761A (ko) * | 2002-07-30 | 2004-02-11 | 삼성전자주식회사 | 화소이동수단을 구비하는 고해상도 디스플레이 |
KR20040020397A (ko) | 2002-08-30 | 2004-03-09 | 삼성전자주식회사 | 칼라 스크롤링을 위한 실린드리컬 렌즈 어레이 및 이를채용한 프로젝션 시스템 |
JP2006510055A (ja) * | 2002-12-13 | 2006-03-23 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | 電気光学的な光変調器及び回転光反射素子を組み込んだスクロール色彩投射システム |
JP4082332B2 (ja) * | 2003-04-11 | 2008-04-30 | セイコーエプソン株式会社 | 表示装置およびプロジェクタ |
US7258448B2 (en) * | 2004-03-25 | 2007-08-21 | Calsonic Kansei Corporation | Display device |
US20070053190A1 (en) * | 2004-05-17 | 2007-03-08 | Koninklijke Philips Electronics N.V. | Compact efficient light collection optics for scrolling color illumination |
US7147332B2 (en) * | 2004-07-21 | 2006-12-12 | 3M Innovative Properties Company | Projection system with scrolling color illumination |
TWI255349B (en) * | 2005-02-02 | 2006-05-21 | Asia Optical Co Inc | Optical system of a projector display and a projector device equipped with this optical system |
US8684532B2 (en) * | 2007-09-19 | 2014-04-01 | Texas Instruments Incorporated | System and method for generating multicolor scan lines and multicolor projection video display incorporating the same |
US7995258B2 (en) * | 2007-12-06 | 2011-08-09 | Texas Instruments Incorporated | Angle diversity antispeckling in spot displays |
US20090161196A1 (en) * | 2007-12-20 | 2009-06-25 | Barco Nv | System and method for speckle reduction from a coherent light source in a projection device |
US20090174867A1 (en) * | 2008-01-08 | 2009-07-09 | Barco Nv | System and method for reducing image artifacts in a projection device using a scrolling refractive element |
US8157388B2 (en) * | 2008-03-31 | 2012-04-17 | Texas Instruments Incorporated | System and method for a projection display system using an optical lightguide |
US7972004B2 (en) * | 2008-04-18 | 2011-07-05 | Texas Instruments Incorporated | System and method for uniform light generation |
JP5541462B2 (ja) * | 2011-05-10 | 2014-07-09 | 大日本印刷株式会社 | 投射型映像表示装置 |
CN105793774B (zh) * | 2013-12-11 | 2017-09-01 | 佳能株式会社 | 照明光学系统、图像投影设备及其控制方法 |
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US5548347A (en) * | 1990-12-27 | 1996-08-20 | Philips Electronics North America Corporation | Single panel color projection video display having improved scanning |
EP0492721B1 (en) | 1990-12-27 | 1997-03-12 | Koninklijke Philips Electronics N.V. | Color display device and circuitry for addressing the light valve of said device |
KR100283707B1 (ko) | 1992-12-09 | 2001-03-02 | 요트.게.아. 롤페즈 | 컬러 디스플레이 장치 |
US5371543A (en) * | 1993-03-03 | 1994-12-06 | Texas Instruments Incorporated | Monolithic color wheel |
US5428467A (en) | 1993-05-20 | 1995-06-27 | Hughes Jvc Tech Corp | Transmissive polygonal optical scanning of illumination for light valve video projector |
US5479187A (en) * | 1994-02-23 | 1995-12-26 | Chunghwa Picture Tubes, Ltd. | Vertically scanned narrow light beam source for LCD display |
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KR100220675B1 (ko) * | 1994-10-31 | 1999-09-15 | 전주범 | 투사형 화상표시장치 |
JP3310487B2 (ja) | 1995-02-06 | 2002-08-05 | パイオニア株式会社 | 液晶表示装置 |
US5845981A (en) | 1997-12-29 | 1998-12-08 | Philips Electronics North America Corporation | Multi-color-band scrolling across single-panel light valve |
US6266105B1 (en) * | 1998-07-31 | 2001-07-24 | Philips Electornics North America Corporation | Color projection system incorporation electro-optic light modulator and rotating light-reflective element |
JP3012841B1 (ja) * | 1998-11-04 | 2000-02-28 | 日本アイ・ビー・エム株式会社 | 単板式カラープロジェクタ |
-
2000
- 2000-08-09 US US09/635,112 patent/US6540362B1/en not_active Expired - Fee Related
-
2001
- 2001-07-20 CN CN018023215A patent/CN1217548C/zh not_active Expired - Fee Related
- 2001-07-20 EP EP01958010A patent/EP1310104A2/en not_active Withdrawn
- 2001-07-20 JP JP2002518092A patent/JP2004506242A/ja not_active Withdrawn
- 2001-07-20 WO PCT/EP2001/008551 patent/WO2002013541A2/en not_active Application Discontinuation
- 2001-07-20 KR KR1020027004310A patent/KR20020036857A/ko not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
WO2002013541A3 (en) | 2002-04-11 |
EP1310104A2 (en) | 2003-05-14 |
KR20020036857A (ko) | 2002-05-16 |
CN1401190A (zh) | 2003-03-05 |
WO2002013541A2 (en) | 2002-02-14 |
JP2004506242A (ja) | 2004-02-26 |
US6540362B1 (en) | 2003-04-01 |
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