比较了目前超薄投影显示光学系统的特点,设计了使用于激光显示的超薄投影镜头组.系统的投影距离为100 mm,画面尺寸为157 cm(62 in),采用TI公司的20.3 mm(0.79 in)DMD芯片作为空间光调制器,系统由1个非球面反射镜和5 片透射镜片组成.从软件模拟结果看,系统成像质量良好.该设计对元件的加工、装调工艺要求较低,有利于降低投影系统的整体成本.
The merits and the shortcomings of several popular kinds of surface type light valve in marketplace were compared according to the characteristic of laser display. Adopting the feature of laser display and comparing the characteristics of current ultra-thin optical projection display systems, an ultra-thin lens for laser TV was designd. The projection distance is 100 mm, the screen size is 157 cm(62 in). Using TI's 20.3 mm(0.79 in) DMD chip as spatial light modulator, the system is composed of a aspherical mirrors and five refractive lens. It is showed from the simulation results that the imaging quality of the system is good. It has lower request for components processing and alignment in the design.
参考文献
| [1] | 刘伟奇,魏忠伦,康玉丝,等.全固态激光彩色视频显示技术[J].液晶与显示,2004,19(5):325-328. |
| [2] | Hrbek G,Lekavich J,Watson W.An improved laser color TV system using acousto-optic interaction[J].Proc.SID,1971,29(2):77-85. |
| [3] | Lowry J B,Welford W T,Humphries M R.Pulsed scophny laser projection system[J].Optics and Laser Technology,1988,20(5):255-258. |
| [4] | Ketabchi Mehrdad,Bering Mikael.Polygonal scanner subsystem for laser display[J].SPIE,1997,3131:20-29. |
| [5] | Christhard Deter,Juergen Kraenert.High resolution scanning laser projection display with diode pumped solid state lasers[J].Proc.SPIE,2000,3954:175-184. |
| [6] | Kennedy K W,Martinsen R J,Radl A J,et al.Laser-based SXGA reflective light value projector with E-cinema quality contrast and color space[J].Proc.SPIE,2000,3954:168-174. |
| [7] | 康玉思,刘伟奇.扫描式匀场照明技术研究[J].光学精密工程,2004,12(4):45-47. |
| [8] | Jun Ogawa,Azuhiro Agata,Mikio Sakamoto,et al.super-short focus front projector with aspheric mirror projection optical system[C]//SID,Seatlle,USA:SID Press Relation Office,2004:170-173. |
| [9] | Shinsuke shikama,Hiroshi Suzuki.Optical system of ultra-thin rear projector equipped with refractive-reflective projection optics[C]//SID,Boston,USA:SID Press Relation Office,2002:1250-1253. |
| [10] | 王之江.光学设计理论基础[M].北京:科学出版社,1985. |
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