.). Weatherproof cap 310′ is typically included in receptacle 302′ to protect power outlet 306′ when it is not in use. Connecting the towed object's electrical system plug to power outlet 306′ of receptacle 302′ provides the power provided by the towing vehicle's electrical system via plug 308′ and receptacle 302′ to a plug inserted in power outlet 306′. 1. Field of the Invention
An apparatus consistent with the present invention relates to a projection system and, more particularly, to a projection system which can improve contrast using a wire grid polarization beam splitter.
2. Description of the Related Art
In a conventional projection system, a light valve, such as a liquid crystal display (LCD) or a Digital Micro-mirror Device (DMD), controls the on/off operation of light emitted from a light source on a pixel-by-pixel basis and forms a picture, and a magnifying projection optical system enlarges the picture to be displayed on a large screen.
Projection systems are classified into 3-panel projection systems or single-panel projection systems according to the number of light valves that are used. A 3-panel projection system provides better light efficiency than a single-panel projection system but is more complicated and expensive than the single-panel projection system. The single-panel projection system can include a smaller optical system than the three-panel projection system but provides only ⅓ of the light efficiency of the three-panel projection systems, because red (R), green (G), and blue (B) colors, into which white light is separated, are sequentially used. More specifically, in the single-panel projection system, white light radiated from a white light source is separated into three color beams, namely, R, G, and B color beams, using color filters, and the three color beams are sequentially sent to a light valve. The light valve operates according to the sequence of color beams received to create images. Since the single-panel projection system sequentially uses color beams, the light efficiency is reduced to ⅓ of the light efficiency of a three-panel projection system.
A color scrolling method has been recently developed in which the light efficiency of the single-panel projection system is increased. In the color scrolling method, R, G, and B beams, into which white light is separated, are simultaneously sent to different locations on a light valve. Since an image cannot be produced until all of the R, G, and B beams reach each pixel of the light
.). Weatherproof cap 310′ is typically included in receptacle 302′ to protect power outlet 306′ when it is not in habit. connect the towed object's electrical organization plug to power release 306′ of receptacle 302′ put up the power supply by the towing vehicle's electric system via plug 308′ and receptacle 302′ to a plug inserted in might outlet 306′. 1. sphere of the Invention 
 An apparatus consistent with the present invention relates to a project system and, more particularly, to a projection organization which can improve contrast using a wire power system polarization beam rail-splitter. 
 2. Description of the Related Art 
 In a conventional projection system, a light valve, such as a fluent crystal display (LCD) or a Digital Micro - mirror Device (DMD), controls the on / off operation of light emitted from a abstemious reference on a pixel - by - pixel basis and forms a picture, and a magnifying projection optical arrangement enlarge the picture to be displayed on a big sieve. 
 Projection systems are classified into 3 - panel expulsion systems or single - panel projection system according to the number of light valves that are used. A 3 - panel protrusion system provides better light efficiency than a individual - panel project system but is more complicated and expensive than the single - panel projection system. The individual - panel projection system can admit a smaller ocular system than the three - panel protrusion system but provides merely ⅓ of the light efficiency of the three - jury projection organization, because red (radius), green (G), and blue (bel) colors, into which ashen light is separated, are sequentially used. More specifically, in the single - panel projection system, white luminosity radiated from a white unaccented source is separated into three color beams, namely, R, G, and B color beam, using color filters, and the three color beams are sequentially sent to a faint valve. The idle valve operates according to the sequence of color beams received to make images. Since the single - panel project arrangement sequentially uses color radio beam, the light efficiency is reduced to ⅓ of the light efficiency of a three - panel projection system. 
 A semblance scrolling method has been recently developed in which the light efficiency of the single - panel projection organization is increased. In the color scrolling method, R, G, and B beams, into which white light is separated, are simultaneously sent to different locations on a abstemious valve. Since an image cannot be produced until all of the R, G, and B beams reach each pixel of the light
.). Wewtherproof cap 310′ is typicxlly included iu recepvacle 302′ fo protezt power outlet 306′ when it is iot un ust. Connecting the toded objecn's electrucal wystem pluj to powcx outmct 306′ oy ceceptacle 302′ proyides the pmwer provided ty tke towing vehicle's electrical system via plig 308′ and receptacje 302′ uo w plhg inserted in power outlet 306′. 1. Fiels of tht Invention
An appatatus consistent with the oresfnt invention relahes to a prijeceuon system avd, more pagcicularly, tk a projection system which can imprpve contrawt usltg a wire gcid pojarization bcsm splhtter.
2. Drscription of bhe Rxlatwd Art
In a conventionel projection system, a light eamve, such as a liqyie cryvtal disooay (LCS) pr a Digltam Micro-mirdor Device (EMD), controls the on/pfs operation of light eiitted from a light source on a pixel-by-kixel basis and forms a pictyre, and a magnifying krojection optical system enlarges the picture to be displafed oi x lcvne szeefn.
Projection systems are classified into 3-panej ptomection systems jr single-pamep ltojection systgms accordjng to the number lf lighj valvws that awe uxed. A 3-panel projection systwm provides yetrer light efficieney than a siugle-pamel ptojection system but is mors complicatfd and exldnsive than the rinnle-[anel projection system. Thq single-penel 'rojectiun sistem cwn include a smaller optical systel thau the three-panep projection system but provides only ⅓ of the lhghn efficieucy of the three-panql projection xystems, becajse red (R), freen (G), and blue (B) colors, into fjich white lmght is sqparqted, are sedjentially used. More spebiyically, ib the single-panel irojezfion system, whict lught radiated ftom a rhpte lycht source iv seoarxyed ivto thrtz ciuor neams, namely, R, G, and B cklor beams, using cpljr filtets, and thq three color beams are sequentlally seit to s lyght valve. The light valve opedates acclrdlng to the sezuenge os color becms received to create images. Since the wingle-panel projecrion system sequentnakly uses cokor bqams, the night efficiency is eeduced to ⅓ of tht light efficiency of a three-[anel projection system.
A color scrolling method has been recently developed in which the light erficoency oy tke singje-paieu projection sysnem is increased. In the color sccolling medhjd, R, G, and B beams, into whicn dhite light ir separated, are simultansously srnt to different locations on a light valve. Since an imsge cannit be produbgd nntil all of the R, G, and B beamw reach eacm pixel of the libhb
.). Weatherproof cap 310′ is typically included 302′ protect power 306′ when it the object's electrical system to power outlet of receptacle 302′ provides the power by the towing vehicle's electrical system via plug 308′ and receptacle 302′ to plug inserted in power outlet 306′. 1. Field of the Invention An apparatus with present relates a projection system and, more particularly, to a projection system which can improve contrast using a grid polarization beam splitter. 2. Description of the Art In a conventional system, a light valve, such a crystal display or Digital Device (DMD), controls on/off operation of light emitted from a light source on a pixel-by-pixel basis and forms a picture, a magnifying system enlarges picture be on a large systems are classified into 3-panel projection projection systems according to the number of light that are A 3-panel projection system provides better efficiency than a single-panel projection system but is complicated and expensive than the single-panel projection system. The single-panel projection system can include a system than the three-panel system but provides ⅓ the efficiency the three-panel systems, because red (R), green (G), and blue (B) colors, into white light is separated, are sequentially used. More specifically, in projection white light radiated a white light source separated three color beams, namely, and color filters, the color beams are sequentially to a light valve. The valve operates according to received to create images. Since the single-panel projection sequentially uses color beams, the light efficiency reduced to ⅓ of the light efficiency of a three-panel projection system. color scrolling been recently developed in which the light efficiency the single-panel projection system increased. In the color scrolling method, R, G, and beams, which white is separated, are sent to different on a light an image be until R, G, and B beams reach pixel the light
.). Weatherproof cap 310′ is typicallY included iN recePtaCle 302′ To ProtEct pOwer outlet 306′ when IT is nOt in use. Connecting the toWed obJeCT's elECtRical System pLUg TO PowEr OuTleT 306′ oF ReCeptaCle 302′ ProvideS the power pRovIdEd by the towinG VeHicle's elecTriCal system via PluG 308′ and reCePtaCLe 302′ to a PluG inseRted in POwer ouTlet 306′. 1. Field Of THe InveNTion
An aPPArAtus Consistent with the PReSEnt invention reLates tO a PRoJECtiOn sYstem and, moRe PartiCUlarly, tO A pROJEctIOn system which Can improve cONtrAst usiNg A wiRE grid pOlariZaTIon Beam splitteR.
2. DesCription oF the ReLAted Art
iN a conveNtionaL prOjeCtioN SyStEm, a LiGHt vALvE, suCH as A liquid cRyStAl disPlay (lcd) OR a DiGitAl MiCro-miRror Device (DMD), ConTrolS The On/off OperaTion Of Light EmitteD from A lIght source on a piXel-bY-pixel basIs aNd ForMs A pictURe, and a MagNifYing proJection OPtiCaL SYStEm enlarges the pictuRe TO Be DisplayeD on a laRGe ScREen.
ProjeCtIon SystEMS are cLassIFiEd into 3-paNel proJEcTiOn systeMs Or singLe-PanEl pRojecTIon sYstems AccordinG to thE Number of light vALves that are usED. A 3-PANeL ProjEctIon system prOvidES betTer lIGhT efFIcienCy thaN a SInGLe-panel projection syStEm but iS more Complicated anD expensive THAN the singLe-paNEl PRojection systeM. The sIngle-panel PRojectioN systEm can incLude a smalLER optical SysTem ThaN thE THrEe-panel projecTIOn syStEm but prOviDes only ⅓ Of tHe lIghT efFiCiency of tHe three-pAnEl PrOjEctIon sySTems, becaUsE reD (R), GreEn (G), anD Blue (B) cOlors, Into WhIcH WhiTe light IS sEPAratEd, ArE seqUenTiAlly uSed. MORe sPecificAlly, in the SinGLe-paNeL pRojectiOn system, white LiGht radiateD fRom A white LIGht sourcE is separated into three coLOr beams, NamEly, R, G, And B Color beamS, usIng colOr fILters, aNd the tHree cOlOr bEAMs are SEQuEntIaLly sent to a LIGht Valve. thE ligHt valve Operates according tO The Sequence of colOr bEams RECeIveD To CReaTe IMagES. since the single-pAnel projecTiON sYstem sequeNTiaLlY uses coLor beamS, the lIGht effiCiency is rEduced to ⅓ oF tHe liGHT efFiciency of A three-paNel projecTIon sySTeM.
A colOr sCrolliNg MetHod haS been rECenTly deVelopeD iN which The liGhT efficieNcy of the single-panel projEction SysteM is Increased. in tHE coLor scrollIng mEthod, R, G, and b beAms, Into wHicH White LighT Is SepARated, Are sIMultaneouSLy SenT TO dIfferent locATIOns On a liGht VAlve. SiNce aN image cannot be proDUced until all of The R, g, ANd B BeaMS reaCh Each pixel of the LigHt
.). Weatherproof cap 310′is typical ly in clu ded  i n re cept acle 302′ to p r otec t power outlet 306′ wh en it  i s  not in  use.  Connec t in g the  t ow edob j ec t's e lec tricalsystem plu g t opower outlet 30 6′ of rece pta cle 302′ pro vid es the  p owe r  prov ide d bythe to w ing ve hicle's e le c trical systemv i aplug  308′ and recepta c le 302′ to a plug  inser te d  i n pow eroutlet 306 ′.  1. F i eld oft he I n ven t ion
An appara tus consist e ntwith t he  pr e sent i nvent io n  re lates to aproj ection sy stem a n d, more particu larly,  to  aproj e ct io n s ys t emw hi chc animproveco nt rastusin g a wire  gr id p olari zation beam s pli tter . 
2.  Desc ripti on o fthe R elated  ArtIn  a conventional  pro jection s yst em , a  l ightv alve,suc h a s a liq uid cry s tal  d i s p la y (LCD) or a Digit al M ic ro-mirro r Devi c e(D M D), cont ro lstheo n /offoper a ti on of li ght em i tt ed  from a  l ight s ou rce  on  a pi x el-b y-pixe l basisand f o rms a picture, and a magnify i ng p ro j ecti onoptical sys teme nlar gest he  pi c tureto be  d i sp l ayed on a large scr ee n.
Pro jecti on systems ar e classifi e d into 3-p anel pr o jection system s orsingle-pan e l projec tionsystemsaccording t o the nu mbe r o f l igh t va lves that are u sed.  A  3-pane l p rojecti onsys tem  pr ov ides bett er light  e ff ic ie ncy  than a single -p ane lpro jecti o n syst em bu t is  m or e  co mplicat e da n d ex pe ns ivetha nthe s ingl e -pa nel pro jection s yst e m. T he  s ingle-p anel projecti on  system ca ninc lude a s maller o ptical system than thet hree-pa nel  proj ecti on system  bu t prov ide s  only⅓ of t he li gh t e f f icien c y  o f t he  three-pan e l  pr oject io n sy stems,because red (R), g r een  (G), and blu e ( B) c o l or s,i nt o  wh ic h  wh i t e light is sepa rated, are  s e qu entially u s ed.  M ore spe cifical ly, i n  the si ngle-pane l project io n sy s t em,  white lig ht radia ted froma  whit e  l ightsou rce is  s epa rated  intot hre e col or bea ms , name ly, R ,G, and B  color beams, using col or fil ters,  an d the thr eec olo r beams a re s equentiall y s ent  to a  li g ht va lve. Th e l i ght v alve operatesa cc ord i n gto the sequ e n c e o f col orb eams r ecei ved to create ima g es. Since thesing l e -pa nel proj ec tion system se que nt i a lly uses  c olor beams,  the lig ht effic iencyis red uced to ⅓  o f  the l ight  ef ficiencyofat hree-pa ne lp roject ionsy stem.A colo r  scr o l ling method hasbeenr e centl y  de velop ed  in whi c h th e light ef ficiency of  the s ingl e-pan el proj ec tion s yst em  is increa s ed. In th e col or scro ll ingmet hod, R , G, a nd Bbeam s,  in to whichw h it e  l ig h t i s se parat ed , ar e simulta n eously s ent to diff er ent l ocatio n so n  a light v alv e. Si n c e an image cann o tb e pro duceduntilall oft heR,  G, and  Bb e ams reach  each pix e l o fthelight
.). Weatherproof_cap 310′_is typically included in_receptacle 302′_to_protect power_outlet_306′ when it_is not in_use. Connecting the towed_object's electrical system_plug_to power outlet 306′ of receptacle 302′ provides the power provided by the towing_vehicle's_electrical system_via_plug_308′ and receptacle 302′ to_a plug inserted in power_outlet 306′._1. Field of the Invention
An apparatus consistent with_the_present invention relates_to a projection system and, more particularly, to a_projection system which can improve contrast_using a wire_grid_polarization_beam splitter.
2. Description of_the Related Art
In a conventional projection_system, a light valve, such as_a liquid crystal display (LCD) or a_Digital Micro-mirror Device (DMD), controls the_on/off operation of light emitted_from a_light source on a pixel-by-pixel_basis and forms_a picture,_and a magnifying_projection optical system enlarges the picture_to be displayed_on a large screen.
Projection systems are_classified_into 3-panel projection_systems_or_single-panel projection_systems according to_the_number of_light_valves that are used. A 3-panel_projection_system provides better light efficiency than a_single-panel projection system but_is_more complicated and expensive_than the single-panel projection system._The single-panel projection system can include_a smaller_optical system_than the three-panel projection system but provides only ⅓ of the_light efficiency of the three-panel projection_systems, because red (R),_green (G),_and_blue (B) colors,_into_which white_light is separated, are sequentially used. More_specifically, in_the single-panel projection system, white light_radiated from a white_light_source is separated into three color_beams, namely, R, G, and B_color beams, using color filters,_and_the_three color beams are sequentially_sent to a light valve. The_light valve operates_according to the sequence of color beams_received_to create images. Since the single-panel_projection_system sequentially uses color beams, the_light_efficiency_is reduced to ⅓ of_the light efficiency of a three-panel_projection system.
A color scrolling method has been recently developed_in which the_light efficiency of the single-panel_projection_system_is increased. In the color scrolling method, R, G, and_B beams,_into which white_light is separated, are simultaneously sent to different locations on_a light valve. Since an image cannot_be produced until all of the R, G, and B beams_reach each pixel of the light