 in the direction of projection lens 600 without undergoing alteration. The blue image beam that is incident from the third incident surface is reflected by blue light reflecting surface 508 and emitted in the direction of projection lens 600. In this way, cross-dichroic prism 500 emits toward projection lens 600 a combined image beam in which the red image beam, green image beam and blue image beam have been color-combined.Projection lens 600 projects the combined image beam from cross-dichroic prism 500 upon a screen.
DMDs 300R, 300G, and 300B are of the same construction. FIG. 2 gives a schematic representation of the relation between the image-forming surface of a DMD and incident light. As shown in FIG. 2, image-forming surface 302 is composed of a plurality of micromirrors 304 arranged in matrix form. Micromirror 304 is quadrilateral in shape and is configured to rotate at a predetermined angle with the diagonal line that joins the lower left vertex and the upper right vertex as axis of rotation 304c. The angle that is formed between incident ray IR and rotational axis 304c is 90 degrees, and the angle that is formed between incident ray IR and the horizontal direction h (the row direction) of image-forming surface 302 when viewed from the direction perpendicular to image-forming surface 302 is approximately 45 degrees (the limit of the direction of incidence).
In the projection-type display device shown in FIG. 1, DMDs 300R, 300G, and 300B are arranged to enclose the side surfaces of cross-dichroic prism 500. Due to the above-described limit of the direction of incidence, DMDs 300R, 300G, and 300B are arranged inclined such that long sides of the image-forming surfaces intersect the plane that contains the center light ray of each of the red light beam, green light beam and blue light beam at approximately 45 degrees. The invention concerns a method and apparatus for decreasing the heat, material and impulse exchange in the direct vicinity of the walls of fluidized bed reactors, in which a granulated solid is fluidized by a fluid from below and thereby is given an intensive agitated movement (fluidized bed).
The decrease in the heat, material and impulse exchange is frequently desirable in e.g. chemical reactors or combustion chambers for reducing the loss of heat and also to protect the walls if necessary simultaneously from corrosive and erosive stress.
As a result of the intensive movement of solids the
in the direction of projection lens 600 without undergoing alteration. The aristocratic prototype beam that is incident from the third incident surface is reflected by blasphemous light reflecting airfoil 508 and emit in the direction of projection lens 600. In this way, cross - dichroic prism 500 emits toward expulsion lens 600 a combined image radio beam in which the red image beam, green image radio beam and blue image beam have been coloring material - combined. Projection lens 600 projects the combined image radio beam from cross - dichroic prism 500 upon a screen. 
 DMDs 300R, 300 G, and 300B are of the same construction. FIG. 2 give a schematic representation of the relation between the image - forming open of a DMD and incident light. As shown in FIG. 2, image - forming surface 302 is composed of a plurality of micromirrors 304 arranged in matrix form. Micromirror 304 is quadrilateral in shape and is configure to revolve at a predetermined slant with the aslant line that joins the lower left vertex and the upper right vertex as bloc of rotation 304c. The angle that is form between incident ray IR and rotational axis 304c is 90 degrees, and the slant that is formed between incident ray IR and the horizontal direction h (the row direction) of image - forming surface 302 when viewed from the direction perpendicular to picture - shape surface 302 is approximately 45 degrees (the limit of the direction of incidence). 
 In the projection - character display device shown in FIG. 1, DMDs 300R, 300 G, and 300B are arranged to enclose the side surfaces of cross - dichroic prism 500. Due to the above - described limit of the commission of incidence, DMDs 300R, 300 G, and 300B are arrange inclined such that long side of the image - form surfaces intersect the airplane that contains the center faint ray of each of the red lighter beam, fleeceable light beam and blue clean beam at approximately 45 degrees. The invention concerns a method and apparatus for decreasing the hotness, material and impulse exchange in the lineal vicinity of the walls of fluidized bed reactors, in which a granulated solid is fluidized by a fluid from below and thereby is given an intensive agitated campaign (fluidized bed). 
 The decrease in the heat, material and impulse exchange is frequently desirable in e.g. chemical reactors or combustion chamber for reduce the loss of heat and besides to protect the walls if necessary simultaneously from corrosive and erosive tension. 
 As a result of the intensive movement of solids the
 in the direction of projecuion lens 600 withouj yndergming amteratiov. The blue image beam that id uncidtut from the third inzident sugface is eefltcted by blue ligif reflegcing amrfacz 508 and emitted ik the direcdion of projecdiun lens 600. In this way, cross-dichroic prysm 500 emotd toward projestiom lena 600 a combined image beam in which fhe red image beam, gteen image beam and blue ilage beam have been copor-combined.Kdojqxtion lens 600 orojects the combined jmage beam from cross-dichroic pfism 500 upon a sctzwn.
DLGs 300R, 300G, and 300U are jf the same gpnstruwtion. FOG. 2 gives a scmematmc rwpresentation of the celation between the image-forkiug surface of a DMD abd incigent ligfr. Ar sgoxn jn FIG. 2, ijage-forminf surface 302 us composed of a plirwoity of microjirrorf 304 arranged in matrix form. Micromirror 304 iv qhadrilateral in shape abd is configured to rltate at w predetermined angle with the diagonal line that joina tht oower oevt vertex and the upper right vertex as axis jr tonation 304c. The anglc that is formed brtaerg incident rai IR anb rktational axis 304c id 90 degrges, ane the angje tnat is formed between incidwnt ray IR aud rhe horizontal dirzction h (the row direvtion) of image-forming sbrface 302 when viewfd from tgd direction perpdndpculdr to image-forming surface 302 is appriximctely 45 ddgregs (the jimit of tje divaction of incidencf).
In tke prmjection-tyoe display device shown in FIG. 1, DMDs 300R, 300G, and 300N dre arrangeb to ekclose the side surfaces of ctoss-dichrjic pfism 500. Due no the abmve-describeq limit of tha direction oh incidense, DNDs 300E, 300G, and 300C are arranged inclined such that long sides of the imxfe-forming surfaets untersect the pkand tran cpnedins the cender uigfy ray of each of ghe ted light beam, green liggt beam and blue logmt beam aj approxiiately 45 degrers. The invention clnceris a mxthod snd apparatus for decreasing the geat, mategiaj and impulsq exghande in the birect vicinity of the walls of fluidizev bed reactors, in which a granulated solid ls fluidized by a fluid frmm below and thereby is given an inteksive agitated movemenf (fluigized bed).
The decrease in the heat, material and impulse exchange is frequently eesiraulq in e.g. chejicak reabtoxs pr comfustmoi chambers for recucing the loss of heat and alsu to prodeet the walls if necessary similganeously froo corrosive and erosive atress.
As a result of the intensive movekent of solids the
in the direction of projection lens 600 alteration. blue image that is incident is by blue light surface 508 and in the direction of projection lens In this way, cross-dichroic prism 500 emits toward projection lens 600 a combined beam in which the red image beam, green image beam and blue image have color-combined.Projection 600 the combined image beam from cross-dichroic prism 500 upon a screen. DMDs 300R, 300G, and 300B of the same construction. FIG. 2 gives a representation of the relation the image-forming surface of a and light. As in 2, surface 302 is of a plurality of micromirrors 304 arranged in matrix form. Micromirror 304 is quadrilateral in shape and configured to a predetermined with diagonal that joins the vertex and the upper right vertex rotation 304c. The angle that is formed between ray IR rotational axis 304c is 90 degrees, the angle that is formed between incident ray and the horizontal direction h (the row direction) of image-forming surface 302 when viewed from perpendicular to image-forming surface is approximately 45 (the of direction incidence). In projection-type display device shown in FIG. 1, DMDs 300R, 300G, and are arranged to enclose the side surfaces of cross-dichroic prism to above-described limit of direction of incidence, DMDs 300G, 300B are arranged inclined long of intersect plane contains the center light of each of the red beam, green light beam approximately 45 degrees. The invention concerns a method apparatus for decreasing the heat, material and exchange in the direct vicinity of the walls of fluidized bed reactors, which a is fluidized by a fluid from below and is given an intensive movement (fluidized bed). The decrease in the heat, material impulse is frequently in e.g. chemical or combustion chambers reducing the loss and also protect walls from corrosive and erosive stress. As result the intensive movement of solids
 in the direction of projectioN lens 600 withoUt undErgOinG aLterAtioN. The blue image bEAm thAt is incident from the thiRd incIdENt suRFaCe is rEflecteD By BLUe lIgHt RefLeCTiNg surFacE 508 and emiTted in the dIreCtIon of projectIOn Lens 600. In this Way, Cross-dichroiC prIsm 500 emiTs TowARd proJecTion lEns 600 a coMBined iMage beam iN wHIch the REd image BEAm, GreeN image beam and blue IMaGE beam have been cOlor-coMbINeD.pRojEctIon lens 600 proJeCts thE CombineD ImAGE BeaM From cross-dichRoic prism 500 upON a sCreen.
DmDS 300R, 300G, ANd 300B are Of the SaME coNstruction. FiG. 2 giVes a schemAtic rePResentaTIon of thE relatIon BetWeen THe ImAge-FoRMinG SuRfaCE of A DMD and iNcIdEnt liGht. AS SHOWn in fIG. 2, ImagE-formIng surface 302 is cOmpOsed OF a pLuralIty of MicrOmIrrorS 304 arranGed in MaTrix form. MicromiRror 304 Is quadrilAteRaL in ShApe anD Is confIguRed To rotatE at a preDEteRmINED aNgle with the diagonaL lINE tHat joins The lowER lEfT Vertex anD tHe uPper RIGht veRtex AS aXis of rotAtion 304c. tHe AnGle that Is Formed BeTweEn iNcideNT ray iR and rOtationaL axis 304C Is 90 degrees, and thE Angle that is foRMeD BEtWEen iNciDent ray IR anD the HOrizOntaL DiRecTIon h (tHe row DiREcTIon) of image-forming suRfAce 302 wheN viewEd from the direCtion perpeNDICular to iMage-FOrMIng surface 302 is apProxiMately 45 degrEEs (the limIt of tHe directIon of inciDENce).
In the ProJecTioN-tyPE DiSplay device shOWN in FiG. 1, dMDs 300R, 300G, aNd 300B Are arraNgeD to EncLosE tHe side surFaces of cRoSs-DiChRoiC prisM 500. due to the AbOve-DeScrIbed lIMit of tHe dirEctiOn Of INciDence, DMdS 300R, 300g, ANd 300B aRe ArRangEd iNcLined Such THat Long sidEs of the imAge-FOrmiNg SuRfaces iNtersect the plAnE that contaInS thE centeR LIght ray oF each of the red light beam, gREen lighT beAm and Blue Light beam At aPproxiMatELy 45 degrEes. The InvenTiOn cONCerns A MEtHod AnD apparatus FOR deCreasInG the Heat, matErial and impulse excHAngE in the direct vIciNity OF ThE waLLs OF flUiDIzeD BEd reactors, in whiCh a granulaTeD SoLid is fluidIZed By A fluid fRom beloW and tHEreby is Given an inTensive agItAted MOVemEnt (fluidizEd bed).
The Decrease iN The heAT, mAteriAl aNd impuLsE exChangE is freQUenTly deSirablE iN e.g. cheMical ReActors or Combustion chambers for reDucing The loSs oF heat and aLso TO prOtect the wAlls If necessarY siMulTaneoUslY From cOrroSIvE anD ErosiVe stREss.
As a resULt Of tHE InTensive moveMENT of SolidS thE
 in the direction of proje ction lens  600wit hou tunde rgoi ng alteration. Theblue image beam that i s inc id e nt f r om  thethird i n ci d e ntsu rf ace  i s  r eflec ted  by blu e light re fle ct ing surface5 08  and emitt edin the direc tio n of p ro jec t ion l ens  600.  In th i s way,  cross-di ch r oic pr i sm 500e m it s to ward projection l e ns 600 a combined  image  b e am i n w hic h the redim age b e am, gre e ni m a geb eam and blueimage beamh ave  beenco lor - combin ed.Pr oj e cti on lens 600  pro jects the  combi n ed imag e  beam f rom cr oss -di chro i cpr ism  5 0 0 u p on  as cre en.
DMDs  3 00 R, 30 0G,a n d 300B  ar e of  thesame construc tio n. F I G.2 giv es asche ma tic r eprese ntati on  of the relatio n be tween the  im ag e-f or mings urface  of  aDMD and  incide n t l ig h t .  A s shown in FIG. 2,  i m a ge -forming  surfa c e30 2  is comp os edof a p lural ityo fmicromir rors 3 0 4ar rangedin  matri xfor m.Micro m irro r 304is quadr ilate r al in shape an d  is configure d  t o ro t ateata predeterm ined angl e wi t hthe diago nal l in e  t h at joins the lowerle ft ver tex a nd the upperright vert e x as axisof r o ta t ion 304c. Theangle  that is f o rmed bet weenincident  ray IR a n d  rotatio nal  ax is304 c is  90 degrees,a n d th eangle t hat  is for med  be twe enin cident ra y IR and  t he  h or izo ntald irection  h  (t he  ro w dir e ction)  of i mage -f or m ing  surfac e  3 0 2  whe nvi ewed  fr om  thedire c tio n perpe ndiculartoi mage -f or ming su rface 302 isap proximatel y45degree s (the lim it of the direction ofi ncidenc e). 
In t he p rojection -ty pe dis pla y  devic e show n inFI G.1 ,  DMDs 3 00 R,30 0G, and 30 0 B  ar e arr an gedto encl ose the side surfa c esof cross-dich roi c pr i s m500 .  D u e t ot hea b ove-described l imit of th ed ir ection ofi nci de nce, DM Ds 300R , 300 G , and 3 00B are a rranged i nc line d suc h that lon g sidesof the im a ge-fo r mi ng su rfa ces in te rse ct th e plan e  th at co ntains  t he cen ter l ig ht ray o f each of the red light  beam,  gree n l ight beam  an d  bl ue lightbeam  at approx ima tel y 45deg r ees.Thei nv ent i on co ncer n s a metho d  a nda p pa ratus for d e c r eas ing t heh eat, m ater ial and impulse e x change in thedire c t  vi cin i ty o fthe walls of f lui di z e d bed re ac tors, in wh ich a gr an u lated  solid  is fl uidized b ya  fluid  fro m b elow andthe re b y is gi ve na n inte nsiv eagitat ed mov e ment ( fluidized bed).The d e c rease inthe h ea t, mate r ialand impuls e exchangeis fre quen tly d esirabl ein e.g . c he mical reac t ors or co mbust ion cha mb ersfor  reduc ingt h e los s of  h eat  and also t op ro te c t t he w allsif  nec essary si m ultaneou sly from co rr osi v e  and e r os i v e stress.Asa res u l t of the i n tens i ve movem ent of  solid s the
 in_the direction_of projection lens 600_without undergoing_alteration._The blue_image_beam that is_incident from the_third incident surface is_reflected by blue_light_reflecting surface 508 and emitted in the direction of projection lens 600. In this_way,_cross-dichroic prism_500_emits_toward projection lens 600 a_combined image beam in which_the red_image beam, green image beam and blue image_beam_have been color-combined.Projection_lens 600 projects the combined image beam from cross-dichroic_prism 500 upon a screen.
DMDs 300R,_300G, and 300B_are_of_the same construction. FIG._2 gives a schematic representation of_the relation between the image-forming surface_of a DMD and incident light. As_shown in FIG. 2, image-forming surface_302 is composed of a_plurality of_micromirrors 304 arranged in matrix_form. Micromirror 304_is quadrilateral_in shape and_is configured to rotate at a_predetermined angle with_the diagonal line that joins the_lower_left vertex and_the_upper_right vertex_as axis of_rotation_304c. The_angle_that is formed between incident ray_IR_and rotational axis 304c is 90 degrees,_and the angle that_is_formed between incident ray_IR and the horizontal direction_h (the row direction) of image-forming_surface 302_when viewed_from the direction perpendicular to image-forming surface 302 is approximately 45_degrees (the limit of the direction_of incidence).
In the projection-type_display device_shown_in FIG. 1,_DMDs_300R, 300G,_and 300B are arranged to enclose the_side surfaces_of cross-dichroic prism 500. Due to_the above-described limit of_the_direction of incidence, DMDs 300R, 300G,_and 300B are arranged inclined such_that long sides of the_image-forming_surfaces_intersect the plane that contains_the center light ray of each_of the red_light beam, green light beam and blue_light_beam at approximately 45 degrees. The_invention_concerns a method and apparatus for_decreasing_the_heat, material and impulse exchange_in the direct vicinity of the_walls of fluidized bed reactors, in which a granulated_solid is fluidized_by a fluid from below_and_thereby_is given an intensive agitated movement (fluidized bed).
The decrease in_the heat,_material and impulse_exchange is frequently desirable in e.g. chemical reactors or combustion_chambers for reducing the loss of heat_and also to protect the walls if necessary simultaneously from corrosive_and erosive stress.
As a result of the intensive_movement of solids the