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ʱDzģ˵糡ͱˣȵı仯ӵ糡йأǵЧӦLCDͶӰڲҺƬɷΪƬʽƬʽ֡ͶӰҪ3ƬʽLCD壬ڴص˵3ƬʽLCDͶӰĹԭ
ƬʽLCDͶӰúҺֱΪɫĿƲ㡣Դİɫ⾭ͷ۵ɫ飬ɫȱͶ䵽ɫҺϣҺ¼µȱʾͼϢͶͼеĺɫϢɫⱻͶ䵽ɫҺϣγͼеɫϢͬɫ⾭ɫҺͼеɫϢɫĹ⾵лۣͶӰͷͶ䵽ͶӰĻγһȫɫͼ
LCDͶӰΪҺҺⷧ֡ҺǽҺ֮ʣ⣬¶Ӱܴ乤¶Ϊ-55桫+70档ͶӰҺĹЧӦҺӵڵ糡·仯ӰҺԪʻʣӶӰĹѧʣвͬҶȲμɫͼ ҺⷧͶӰ
ͶӰҲΪͼѧŴILAImage Light AmplifierϿԽͼȫ룬Ӷʾȡ߶Աȶȡ߷ֱʵĻ档
CRTܺҺⷧΪCRTͶӰҺⷧϵIJΪ˽ͼֱȼìܣԴҲбʽͶӰʽһĹⷧҪɣתӡһֿɿؿءͨCRTĹź䵽תϣźתΪ仯ĵźţԴһǿ⣬Ͷ䵽ⷧϣڲľӷ䣬ͨıѧԣⷧƫ˹ƬȥĹ⣬ֻѧ϶һµĹͨCRTźิϣͶĻϡĿǰΪֹȡֱߵͶӰȿɴ6000lmֱΪ25002000ڻǿڽ϶ijϣ糬ģ
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ָġļֳ۸ߣⷧάޡ ҺͶӰ
ijҺ壬ҲһֱʽͶӰʽԴ±صƣֹͨ⾵γRGB⣬ֱRGBҺ壻źԴģתƼӵҺϣҺԪĿպϣӶƹ·ͨϣپӺϹ⣬ɹѧͷŴʾڴĻϡĿǰгϳҺͶӰȽеƬƣͶӰСᣬЯ䷽㣬۸ҲȽϵԴ̣ɫʲܾȣֱʽϵͣ߷ֱΪ1024768ʱʾСͻ顣ͶӰȻҲʵֻźţҺԣӦٶʱƣ½
ģźʾ450ߣźΪ16001280£ȼ4001200lmLCDͶӰСЯʹʱ۵ص㣬Լ3000Сʱҡ
ѧ֮ͼʾ豸 ֹDLP
ֹDLPDigital Light Processing˾Texas InstrumentsзһȫֻʾDLPĺDMDDigital Micromirror Device DLPĹ
DMDDLPĻһDMDɱΪһ뵼أ50~130ƬۼCMOSƬϡһƬƬʾһأ任Ϊ1000/룬졣ÿһƬijߴΪ14m14m16m16mΪڵ䷽Ƕȣ·ƽõתװáƬתܿCMOS RAMźšźűдSRAMʱἤַ缫Ƭ壨YOKE
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ԴʹװתһյӦźţƬб10㣬Ӷʹķ䷽ı䡣ͶӰ״̬ƬʾΪSRAMźŶб+10㣻ƬڷͶӰ״̬ʾΪءб-10㡣ͬʱ״̬±ȥͨͶӰӰͶӰĻϣء״̬·Ƭϵⱻա֮DMDĹԭǽװ÷ҪĹ⣬ͬʱͨղҪĹʵӰͶӰշǽãͨƬǶʵֵġ
ͨÿһƬµĴ洢ԪԶƽźŽѰַDMDϵÿƬԾ緽ʽбΪ״̬ÿƬбĸΪʱļΪȵƣPWMƬһڿ1000ΣһϣDLPΪһĹѧϵͳͨ۹Լɫ˲ϵͳͶӰƵĹֱ߱DMDϡƬڿλʱͨͶӰⷴ䵽ĻγһֵķͶӰͼ DMD 塢ͶӰơɫֺͶӰͷЭͬʱЩľܹһͬͼ䵽ʾǽ桢ӰĻӻĻϡ
DMDṩ1670ɫ256λҶȲΣӶȷDLPͶӰͶӰĻӰɫϸ塢Ȼ档
DMD20481152УÿԪԼɲ230棬DMDƳĸȵӡ DLPŵ Ĩȥͼеȱ
DMDǷĿٿٶ˫ȵƵһ־ȷͼɫͻҶȸƼϣʹͼŴڵˢ¶ͨǿԱȶȣ߽Լ뵥ɫͼеȱĨȥ Ʊ⡰ɴšЧӦ
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ءŵͨѧϰϡ
LCDͶӰͼУǻῴһͼߴʱLCDͼеķ϶øDLPͶӰDMDĴС״һСÿƬ90%̬طһͶӰͼһͷһͷ֮˵Ľӽͼûз϶DMDƬСÿһߵijΪ16ףھͷ֮ķ϶С1סͷǷεģÿһƬʾҪʵͼࡣټϵֱʱСԱһ£۷ֱα仯ͼʼֺܹܸߵȡ
ھϣڹۿͶӰʱȻ봫ͳͶӰȣDLPͶӰĹߴĻϣҲDLPļص㡣DMDǿͨ·ϵϰԼĹ߷䵽ĻϣͶӰĹԴDLPͼݶͼз䣬DLPĹԴֹʽͨһĻϣֱӽһΪǣDLPͶӰŷֱʵӶӵġXGASXGAȸ߷ֱʵ£DMDṩķһͿԸΪЧõƹȡ ͼӱȻ
DLPǼͶӰͼǽ˸ơĴУȽԴͼֻΪ810λÿɫĻҶͼȻЩͼDMDԹԴϸ˵IJɫϡЩͼ뿪DMDͳĻϣԴͼеĹ֮DLPһɫʹ˹̿ͶӰͼɫʴȣ˼ֻ֧εɫʸƣȷԭʼͼ֡ʾӰij֣DLPʹЩͼӵ˱ɫʡɫʵֱ֤ͼʵʵĻԭԣûзİߵͶӰ͵ijʧ
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