home *** CD-ROM | disk | FTP | other *** search
/ Shareware Overload Trio 2 / Shareware Overload Trio Volume 2 (Chestnut CD-ROM).ISO / dir28 / opt312.zip / OPTC419.EQU < prev    next >
Text File  |  1993-10-23  |  2KB  |  18 lines

  1. "AST1CAL3 EQUATION VARIABLE","10-23-1993","21:04:45"
  2. "FOCAL_LENGTH=F+(1-SIGN(ABS(F)))*R1*R2/(R2-R1)/(N[L]/(N[M]+1E-30)-1) INDEX_L=N[L]+(1-SIGN(ABS(N[L])))*N[M]*(1+R1*R2/(F+1E-30)/(R2-R1+1E-30)) INDEX_M=N[M]+(1-SIGN(ABS(N[M])))*N[L]/(1+R1*R2/(F+1E-30)/(R2-R1+1E-30)) RADIUS_1=R1+(1-SIGN(ABS(R1)))*(N[L]/(N[M]+1E-30)-1)*F*R2/(R2+(N[L]/(N[M]+1E-30)-1)*F) RADIUS_2=R2+(1-SIGN(ABS(R2)))*(N[L]/(N[M]+1E-30)-1)*F*R1/((N[L]/(N[M]+1E-30)-1)*F-R1)"
  3. "THIN LENS IMAGERY, CONVEX, TRANSVERSE MAGNIFICATION.   .       A diagram of the Problem is shown below. Surface is represented by 's'.                              ss                                                                             s  s                                                                            s  s                     M[T] + means erect image             ╦ Y[O]           s    s                                                         ║······o·········s····s········o··········o  S source point                     S     F[O]       s    s       F[I]   Y[I] ║  P image point                                        s  s                    ╩  S[O] Source distance               |·X[O]·|···f····· s  s·····f···|····X[I]··|  S[I] Image distance                                   ss                                                           |--------S[O]------|-----------S[I]-------|                                   Sign Convention:  X[O] + means its left of F[O]           focal_length < 0                        X[I] + means its right of F[I]             means                         Y[I], Y[O] + means above optical axis          diverging lens.       *** Answer(s) to problem ***                  (c) PCSCC, Inc., 1993             (a) First set F=0, N[L]=1.6, N[M]=1, R1=40 and R2=-40. Focal length =33.3 cm.   Next type (space) s[i]=2*focal_length (enter). S[I]=S[O]=2*f=66.6 cm.                                    Type any key to exit.                                                 ||A thin bi-convex lens of index 1.6 has equal radii of 40 cm in air. (a) Compute the focal length. (b) If the image is to be projected full-sizeon a white wall, what are the image and object distances?                           Type comma key to see answer. Type (F2) to return to application file."
  4. 10
  5. 33.33333333333333,0,""
  6. 1.6,0,""
  7. 1,0,""
  8. 40,0,""
  9. -40,0,""
  10. 0,0,""
  11. -40,0,""
  12. 40,0,""
  13. 1,0,""
  14. 1.6,0,""
  15. 1
  16. 0
  17. 0
  18.