SPECIFICATIONS
  • standard objectives
  • standard flatfield objectives
  • Ultra-Plan objectives
  • fluorescence microscopy objectives
  • phase-contrast objectives
  • long working-distance objectives
  • polarising microscopy objectives
  • special widespectral objectives
  • special macro objectives for criminalistic microscopes
  • special objectives for CCD and CMOS cameras


    ULTRA-PLAN OBJECTIVES

    The ultimate in microscope objectives designed for small-series production. The Ultra-Plan designs offer an extremely wide and completely flat image with superb resolution and colour correction and are intended for advanced microscopic research in the biological sciences, metallography, microelectronics, etc..
    Transmitted and reflected light, brightfield and darkfield

    parfocal distance (DIN), mm 45
    tube length infinity
    focal length of the tube lens, mm 160
    optimum field of view (in eyepiece), mm 25
    maximum field of view (in eyepiece), mm 32

    Some specifications:

    dark-bright light:
    N MAGNIFICATION NUMERICAL APERTURE TOTAL WORKING DISTANCE, mm TYPE OF ABERRATION CORRECTION
    1 5 0.16 15.0 ICS PLANAPOCHROMAT
    2 10 0.28 5.0 ICS PLANAPOCHROMAT
    3 20 0.50 1.40 ICS PLANAPOCHROMAT
    4 50 0.85 0.63 ICS PLANAPOCHROMAT


    bright light:
    N MAGNIFICATION NUMERICAL APERTURE TOTAL WORKING DISTANCE, mm TYPE OF ABERRATION CORRECTION
    1 2.5 0.05 15.5 ICS LD PLANAPOCHROMAT
    2 5 0.16 15.0 ICS LD PLANAPOCHROMAT
    3 10 0.35 2.0 ICS PLANAPOCHROMAT
    4 20 0.65 1.40 ICS PLANAPOCHROMAT
    5 40 0.75 0.63 ICS PLANAPOCHROMAT
    6 40 0.90 0.63 ICS PLANAPOCHROMAT
    7 50 1.00 OIL 0.28 ICS PLANAPOCHROMAT
    8 63 0.90 0.63 ICS PLANAPOCHROMAT
    9 100 0.95 0.17 ICS PLANAPOCHROMAT
    10 100 1.30 OIL 0.32 ICS PLANAPOCHROMAT
    11 100 1.42 OIL 0.28 ICS PLANAPOCHROMAT
    12 160 0.95 0.16 ICS PLANAPOCHROMAT
     

    Some optical diagrams of our Ultra-Plan microscope objectives showing the innovative designs developed by our specialists to ensure unexcelled performance.





 
FOCUS Inc.
1B, 5-th Upper street, Saint-Petersbourgh 194292, Russia
Phone:             +7-812-7154960          Phone/Fax:     +7-812-9328906
E-mail:              focus@focusinc.ru