.MCAD 306000000 Z  docDocument<mcObjectI  (d2_graph_format graphData axisFormatLD trace2D     LL      dim_formatCmasslengthtimecharge temperature luminosity substanceNumericalFormat@dii shpRectE2O}mcDocumentObjectStateJ mcPageModel:>.؂>> ?mcHeaderFooter99 ComputeEngine=BuiltInsB SerialAnyvalH@@H @@H@HMbP?@H units_classA TextState0 TextStyle/@ Arial Normalfont_style_list> font_style?  VariablesTimes New Roman?  ConstantsTimes New Roman? TextArial? Greek VariablesSymbol? User^1Arial? User^2 Courier New? User^3System? User^4Script? User^5Roman? User^6Modern? User^7Times New Roman? SymbolsSymbol? Current Selection FontArial? Undefined Font? քOgHeaderArial? քOgFooterArial? Rotated Math FontTimes New Roman^ TextRegion docRegion7shpBoxDn5fcnZ_ .. CharacterMapRangeMap,$ SCHMIDT CAMERA CALCULATIONS  ChrPropMap(#$  RangeElem-  ChrPropData) RangeData.0,0,255 - )~0,0,255 -)~0,0,255 -)~0,0,255   ParPropMap*$-$ ParPropData+EmbedMap"-LinkMap $-$LinkData!@NormalArial @D N DD"Enter Values for Design Variables:("-")0,0,128*"-"+"- "-"!@NormalArial eqRegion3@D tree1 p 1 !1d CORRECTOR_DIAMETER"1 8.5#@D &&Corrector Plate Outer Diameter($-%)#0,0,128*&-'+"(- )-*!@NormalArial +3@D },1 p-1 ,.1d- CLEAR_APER/1-80@D$ Corrector Clear Aperture(1-2)00,0,128*3-4+"5- 6-7!@NormalArial 83@D 91 p:1 9;1d:PRIMARY_DIAMETER<1:12=@D Diameter of Primary Mirror(>-?)=0,0,128*@@-@A+"@B- @C-@D!@NormalArial @E3@D 1u,@F1 p@G1 @F@H1d@G PRI_RADIUS@I1@G48@J@D1, &&Radius of Curvature of Primary(@K-@L)@J0,0,128*@M-@N+"@O- @P-@Q!@NormalArial @R3@D :jOHJ@S1 p@T1 @S@U1d@TSHAPE@V1@T1.5@W@D7OJ   Shape Factor for Corrector (@X-@Y)@W0,0,128*@Z-@[+"@\- @]-@^!@NormalArial @_3@D Xmsh@`1 p@a1 @`@b1d@a COR_THICK@c1@a0.25@d@DUmh Thickness of Corrector Plate(@e-@f)@d0,0,128*@g-@h+"@i- @j-@k!@NormalArial @l3@D v@m1 p@n1 @m@o1d@nNUM_SIDES_FIGURED@p1@n2@q@Ds  55 Number of Sides Figured (1 or 2)( @r- @s)@q0,0,128* @t- @u+"@v-  @w- @x!@NormalArial @y3@D s@z1 p@{1 @z@|1d@{ COR_INDEX@}1@{1.517@~@D -Refractive Index of Corrector Plate @ 560 nm.(-@--@)@~0,0,128*-@--@+"@- -@--@!@NormalArial @3@D Y@1 p@1 @@1d@P_RATIO@1@0.230@@D] *Poisson's (Elongation / Contraction) ratio(*@-*@)@0,0,128**@-*@+"@- *@-*@!@NormalArial @3@D @1 p@1 @@1d@YOUNGS_MODULUS@1@@1t@1.17@1@@1t@10@1@7@@D. XX%Stress / Strain for BK-7, from Schott(%@-%@)@0,0,128*%@-%@+"@- %@-%@!@NormalArial @3@D ,@1 p@1 @@1d@PRIMARY_MOUNT_DIA@1@2@@DWC 'Diameter of Primary Central Obscuration('@-'@)@0,0,128*'@-'@+"@- '@-'@!@NormalArial @3@D !}-@1 p@1 @@1d@ FILM_WIDTH@1@2.000@@D W!D )Square Size of Film That Fits Film Holder()@-)@)@0,0,128*)@-)@+"@- )@-)@!@NormalArial @3@D *?:@1 p@1 @@1d@SPHEROMETER_RADIUS@1@4.25@@D'?: 1Radius of Three Ball Spherometer (for Tool Meas.)(1@-1@)@0,0,128*1@-1@+"@- 1@-1@!@NormalArial @3@D H]X@1 p@1 @@1d@SPHEROMETER_RES@1@10000@@DE]X -,Counts per Inch of Spherometer (Half-Micron)(,@-,@)@0,0,128*,@-,@+"@- ,@-,@!@NormalArial @3@D f{wv(@1 p@1 @@1d@ REL_POWER@1@1@@Dc{v) -2Power of Corrector Plate relative to Basic Schmidt(2@-2@)@0,0,128*2@-2@+"@- 2@-2@!@NormalArial @@D O  EE#Calculate a few derived quantities:(#@-#@)@0,0,128*#@-#@+"@- #@-#@!@NormalArial @3@D @1 p@1 @@1d@ PRI_FOC_LEN@1@@1d@ PRI_RADIUS@1@2@3@DP@1 p@1@@1d@ PRI_FOC_LEN@1@@1+@@Serial_DisplayNodeF@1@ _n_u_l_l_@3@D 73|  @1 p@1 @@1d@ PRI_F_RATIO@1@A1d@ PRI_FOC_LENA1@PRIMARY_DIAMETERA3@DD% A1 pA1AA1dA PRI_F_RATIOA1AA1+@A@FA1A _n_u_l_l_A 3@D KyfA 1 pA 1 A A 1dA CLEAR_RADIUSA 1A A1dA CLEAR_APERA1A 2A3@DVXkfA1 pA1AA1dA CLEAR_RADIUSA1AA1+@A@FA1A _n_u_l_l_A3@D IA1 pA1 AA1dA SIDES_FACTORA1AA1tA1A1ANUM_SIDES_FIGUREDA3@DT A1 pA 1AA!1dA SIDES_FACTORA"1A A#1+@A"@FA$1A" _n_u_l_l_A%3@D sA&1 pA'1 A&A(1dA' NEUT_ZONEA)1A'A*1p@A)A+1A*A,1dA+SHAPEA-1A+2A.1A)0.5A/3@D;A01 pA11A0A21dA1 NEUT_ZONEA31A1A41+@A3@FA51A3 _n_u_l_l_A63@D ?A.0A71 pA81 A7A91dA8GEOMETRIC_F_RATIOA:1A8A;1dA: PRI_FOC_LENA<1A: CLEAR_APERA=3@D3B.A>1 pA?1A>A@1dA?GEOMETRIC_F_RATIOAA1A?AB1+@AA@FAC1AA _n_u_l_l_AD3@D Y*tAE1 pAF1 AEAG1dAF PHOTO_F_RATIOAH1AFAI1dAH PRI_FOC_LENAJ1AHAK1p@AJAL1AKAM1@ALAN1dAM\pAO1AM4AP1pALAQ1APAR1@AQAS1dAR CLEAR_APERAT1AR2AU1AQAV1dAUPRIMARY_MOUNT_DIAAW1AU2AX1AJ0.5AY3@Dn`~AZ1 pA[1AZA\1dA[ PHOTO_F_RATIOA]1A[A^1+@A]@FA_1A] _n_u_l_l_A`3@D '8Aa1 pAb1 AaAc1dAbFIELD_WIDTH_DEGREESAd1AbAe1@AdAf1dAeatanAg1pAeAh1AgAi1dAh FILM_WIDTHAj1Ah PRI_FOC_LENAk1AddegAl3@DTAm1 pAn1AmAo1dAnFIELD_WIDTH_DEGREESAp1AnAq1+@Ap@FAr1Ap _n_u_l_l_As3@D ^sn:At1 pAu1 AtAv1dAuFIELD_DIAGONAL_DEGREESAw1AuAx1dAwFIELD_WIDTH_DEGREESAy1Aw1.414Az3@D^ssnA{1 pA|1A{A}1dA|FIELD_DIAGONAL_DEGREESA~1A|A1+@A~@FA1A~ _n_u_l_l_A@D   Corrector Plate Calculations:(A-A)A0,0,128*A-A+"A- A-A!@NormalArial A3@D  A1 pA1 AA1dA PRESSURE_PSIA1AA1@AA1p@AA1AA1@AA1dA SIDES_FACTORA1AYOUNGS_MODULUSA1AA1dA COR_THICKA1A3A1A REL_POWERA1AA1@AA1@AA1tA6A1AA1dA PRI_FOC_LENA1A3A1pAA1AA1dA COR_INDEXA1A1A1pAA1AA1tA1A1AA1dAP_RATIOA1A2A3@D_A1 pA1AA1dA PRESSURE_PSIA1AA1+@A@FA1A _n_u_l_l_A3@D 3TrA1 pA1 AA1dA TOOL_RADIUSA1AA1@AA1@AA1@AA1tA16A1AA1dA PRI_FOC_LENA1A3A1pAA1AA1dA COR_INDEXA1A1A1pAA1AA1tA1A1AP_RATIOA1AA1@AA1@AA1dA SIDES_FACTORA1AA1p@AA1AA1dACORRECTOR_DIAMETERA1A2A1A2A1pAA1AA1@AA1@AA1tA6A1AA1tA2A1AP_RATIOA1ASHAPEA1AA1dASHAPEA1AP_RATIOA1A REL_POWERA3@D@A1 pA1AA1dA TOOL_RADIUSA1AA1+@A@FA1A _n_u_l_l_A3@D 9z&tA1 pA1 AA1dA INITIAL_SAGA1AA1@AA1@AA1@AA1@AA1dA SIDES_FACTORA1AA1@AA1dACORRECTOR_DIAMETERA1A2A1A32A1AA1p@AA1AA1@AA1dACORRECTOR_DIAMETERA1A2A1A PRI_FOC_LENA1A3A1pAA1AA1tA5A1AP_RATIOA1A REL_POWERA1AA1p@AB1AB1dB COR_INDEXB1B1B1pAB1BB1tB1B1BP_RATIOB3@DSqRlB1 pB 1BB 1dB INITIAL_SAGB 1B B 1+@B @FB 1B _n_u_l_l_5JB3@Dz{B1 pB1 BB1dBINITIAL_COUNTSB1BB1dB INITIAL_SAGB1BSPHEROMETER_RESB3@DUB1 pB1BB1dBINITIAL_COUNTSB1BB1+@B@FB1B _n_u_l_l_B@D  x @QThe Initial Sag and the Final Sag will be Equal if the Shape Factor is set at 1.0(QB-QB)B0,0,128*QB-QB +"B!- QB"-QB#!@NormalArial B$3@D ZQm>yB%1 pB&1 B%B'1dB& FINAL_SAGB(1B&B)1@B(B*1p@B)B+1B*B,1dB+CORRECTOR_DIAMETERB-1B+2B.1B)2B/1B(B01tB/2B11B/ TOOL_RADIUSB23@D%C >zB31 pB41B3B51dB4 FINAL_SAGB61B4B71+@B6@FB81B6 _n_u_l_l_5JB93@DLIa<\{B:1 pB;1 B:B<1dB; FINAL_COUNTSB=1B;B>1dB= FINAL_SAGB?1B=SPHEROMETER_RESB@3@Dj^ z|BA1 pBB1BABC1dBB FINAL_COUNTSBD1BBBE1+@BD@FBF1BD _n_u_l_l_BG3@D }BH1 pBI1 BHBJ1dBIDESIRED_TOOL_SAG_7BK1BIBL1@BKBM1dBLSPHEROMETER_RADIUSBN1BL2BO1BKBP1tBO2BQ1BO TOOL_RADIUSBR3@DXf~BS1 pBT1BSBU1dBTDESIRED_TOOL_SAG_7BV1BTBW1+@BV@FBX1BV _n_u_l_l_EJBY3@DJ ]  BZ1 pB[1 BZB\1dB[DESIRED_COUNTS_7B]1B[B^1dB]DESIRED_TOOL_SAG_7B_1B]SPHEROMETER_RESB`3@Dl g3 . Ba1 pBb1BaBc1dBbDESIRED_COUNTS_7Bd1BbBe1+@Bd@FBf1Bd _n_u_l_l_Bg@D   HH@This Section Graphs the Profile Of the Front of the Corrector Plate as a Function of the Radius. The X axis units are Inches and, for the Y axis, "micro-inches". If the Shape Factor is set to 1.0, then the center and edge will be at the same height.(Bh-Bi)Bg0,0,128*Bj-Bk+"Bl- Bm-Bn!@NormalArial Bo@D #   ||@_Calculate the standard "A and B" coefficients of the two-term expansion of the surface profile:(_Bp-_Bq)Bo0,0,128*_Br-_Bs+"Bt- _Bu-_Bv!@NormalArial Bw3@D C } d Bx1 pBy1 BxBz1dByAB{1ByB|1@B{B}1@B|B~1@B}B1@B~B1dB NEUT_ZONEB1B2B1B~B1dB CLEAR_APERB1B2B1B} SIDES_FACTORB1B| REL_POWERB1B{B1@BB1tB8B1pBB1BB1dB COR_INDEXB1B1B1BB1dB PRI_RADIUSB1B3B3@DU s n B1 pB1BB1dBAB1BB1+@B@FB1B _n_u_l_l_4JB3@D < B1 pB1 BB1dBBB1KBB1BB1@BB1dB SIDES_FACTORB1B REL_POWERB1BB1@BB1tB4B1pBB1BB1dB COR_INDEXB1B1B1BB1dB PRI_RADIUSB1B3B3@D   B1 pB1BB1dBBB1BB1+@B@FB1B _n_u_l_l_B3@D   R B1 pB1 BB1dBRADIUSB1BB1 @BB1tB0B1B.025B1B CLEAR_RADIUSB3@D > yY T B1 pB1 BB1@BB1dBSAGB1pBB1BRADIUSB1BB1p@BB1BB1@BB1dBAB1BB1dBRADIUSB1B2B1BB1dBBB1BB1dBRADIUSB1B4B1BB1tB10B1B6B3@D  B1 pB1BB1@BB1@BB1@BB1tB0B1B350B1BB1dB _n_u_l_l_B1B _n_u_l_l_B1BB1dBSAGB1pBB1BRADIUSB1BB1@BB1@BB1tB4B1B0B1BB1dB _n_u_l_l_B1B _n_u_l_l_B1BRADIUSBL1FF     B@D \ b RERE@This Section Calculates the positions of Interference Fringes that occur when a Schmidt Corrector Plate Surface is Contacted against an Optical Flat, as per the very useful Article by Michael Harlow in Telescope Making issue # 27 (q.v.).(*B-B+"B- B-B!@NormalArial B3@DzcB1 pB1 BB1dB WAVE_LENB1B.000022B@Dd rr&Corresponds to 560 nm. "Yellow" light.(&*&B-&B+"B- &B-&B!@NormalArial B3@DA7,2eB1 pB1 BB1dBKC1BC1@CC1tC8C1pCC1CC1dC COR_INDEXC1C1C1CC1dC PRI_RADIUSC 1C3C 3@DTi]dfC 1 pC 1 C C 1dC FRINGEC1C C1 @CC1tC0C1C1C1C21C@DQhdg Set up Range Variable(*C-C+"C- C-C!@NormalArial C3@D}a\hC1 pC1 CC1@CC1dCXC1CFRINGEC1CC 1p@CC!1C C"1@C!C#1@C"C$1dC#SHAPEC%1C#C&1dC% CLEAR_RADIUSC'1C%2C(1C"C)1p@C(C*1C)C+1@C*C,1@C+C-1dC,SHAPEC.1C,2C/1C+C01dC/ CLEAR_RADIUSC11C/4C21pC*C31C2C41@C3C51@C4C61tC52C71pC5C81C7C91dC8FRINGEC:1C80.5C;1C4KC<1C3 WAVE_LENC=1C(0.5C>1C!2C?1C0.5C@3@DS2iCA1 pCB1CACC1@CBCD1dCCXCE1CCFRINGECF3@DZ;zhnCG1 pCH1 CGCI1@CHCJ1eCIJXCK1CIFRINGECL1CHCM1p@CLCN1CMCO1@CNCP1@COCQ1dCPSHAPECR1CPCS1dCR CLEAR_RADIUSCT1CR2CU1COCV1p@CUCW1CVCX1@CWCY1@CXCZ1dCYSHAPEC[1CY2C\1CXC]1dC\ CLEAR_RADIUSC^1C\4C_1pCWC`1C_Ca1@C`Cb1@CaCc1tCb2Cd1pCbCe1CdCf1dCeFRINGECg1Ce0.5Ch1CaKCi1C` WAVE_LENCj1CU0.5Ck1CN2Cl1CL0.5Cm3@DoCn1 pCo1CnCp1@CoCq1dCpXCr1CpFRINGECs@Dx8 x GFrom Dave Rowe's page(Ct-Cu)Cs Technical*Cv-Cw+"Cx- Cy-Cz!@NormalArial C{@D|%| CZ2Z2@Bz.c is the deflection of the plate at center s is the tool sagitta(BC|-BC})C{ Technical*BC~-BC+"C- BC-BC!@NormalArial C3@Dn++_LC1 pC1 CC1dCz.cC1CC1@CC1@CC1dCBC1CC1p@CC1CC1dCCORRECTOR_DIAMETERC1C2C1C4C1pCC1CC1@CC1tC5C1CP_RATIOC1CC1tC1C1CP_RATIOC1pCC1KCC1C1C3@Dnf~C1 pC1CC1dCz.cC1CC1+@C@FC1CC3@Dn.C1 pC1 CC1dCsC1CC1@CC1dCz.cC1pCC1CC1@CC1tC6C1CC1tC2C1CP_RATIOC1CC1tC5C1CP_RATIOC1CC1dCAC1CC1p@CC1CC1dCCORRECTOR_DIAMETERC1C2C1C2C3@Dn}C1 pC1CC1dCsC1CC1+@C@FC1C