Olympus BX51-P Owner's manual

POLARIZING MICROSCOPE
BX51-P
BX2 SERIES

Unsurpassed optics render polarized light images
sharper than ever before.
UIS2 provides outstanding system
expandability.
By maximizing the advantages of infinity
correction, the UIS2 optical system prevents
the deterioration of optical microscope
performance and eliminates magnification
factors, even when polarizing elements like
analyzers, tint plates or compensators are
introduced into the light path.
Maintaining the highest level of system
flexibility, the BX51-P also accepts
intermediate attachments available for the
BX2 Series system microscopes, as well as
TV cameras and photomicrographic
systems.
Olympus is proud to introduce the BX51-P, the new polarizing microscope with superb performance in polarized
light. It's a breakthrough combination of world-renowned UIS2 infinity-corrected optics and Olympus original
optical-design. Olympus has also devised a new, extended line of compensators to make the BX51-P versatile
enough to handle observation and measuring applications in virtually any field.
0.5mm *50µm *
BX51 Conoscopic/
Orthoscopic configuration
Zonal structure of Plagioclase
in quartz diorite. Optical texture of MBBA
BX51 Orthoscopic
configuration
*Scales indicate actual size of samples

Enhanced operational ease and outstanding
optical performance.
LWith the U-CPA conoscopic observation
attachment, the changeover between
orthoscopic and conoscopic observation
methods is simple and quick — just slide
the Bertrand lens control knob in or out.
LThe circular rotatable stage has two
centering knobs and allows smooth
sample rotation. A settable click stop
every 45 degrees enables accurate
observation and measurement.
LAn ergonomic Y-shaped frame ensures
comfortable, efficient observation with
less fatigue, even over prolonged periods.
LStandard field number F.N. 22 represents
a 21% increase in field size, covered with
the conventional F.N. 20.
LThe high intensity 12V, 100W halogen
light source combined with the UIS2
optical system and its high trans-
mittance result in exceptionally bright
and sharp images.
LMounting an attachable cross-
movement mechanical stage (U-FMP)
onto the circular rotatable stage makes
for improved observation efficiency.
Interference between the mechanical
stage and the objectives is eliminated,
so that images of superb quality can be
effortlessly observed with all objective
magnification.
U-FMP

BX51-P dimensions (unit: mm)
BX51-P system diagram
Power consumption: 250VA Note: The length marked with an asterisk (*) may vary according to the interpupillary distance setting. Distance for figure is 62mm.
BX51 Conoscopic/Orthoscopic configuration weight: approx. 16.6kg (36.6 Ibs.) BX51 Orthoscopic configuration weight: approx. 15.6kg (34.4 Ibs.)

Item N.A. W.D.
ACHN 10XP 0.25 6.0mm
ACHN 20XP 0.40 3.0mm
ACHN 40XP 0.65 0.45mm
ACHN 100XOP 1.25 0.13mm
Unmatched sharpness
in orthoscopic and
conoscopic observations.
With a U-CPA conoscopic
observation attachment,
changeover between
orthoscopic and cono-
scopic observation is simple
and quick.
Focusing of conoscopic
images is easy and
accurate. Employing
a Bertrand field stop
makes it possible to obtain
consistently sharp and clear
conoscopic images.
An upgrade in polarization
characteristics.
Thanks to Olympus' sophisticated design
and manufacturing technology, the ACHN-P
and UPLFL-P strain-free objectives reduce
internal strain to an absolute minimum.
Olympus has also totally redesigned its
polarizers and polarizing condensers to
further enhance performance in polarized
light. This means a higher EF* value,
resulting in unmatched image contrast.
To meet a diversity of research and
application requirements, the universal
UPLFL-P Series objectives have been
designed to accommodate a wide range of
observation methods, including Nomarski
DIC and fluorescence microscopy,
in addition to polarized light observation.
*The EF (extinction factor) is the brightness ratio between
parallel and crossed pol-filters. The higher
the EF value, the better the extinction.
An extensive range of compensators
is available.
Six different compensators are available
for the BX51-P microscope, allowing
measurement of various retardation
levels, ranging from 0 to 20λ. For easier
measurement, the direct readout method
is featured. Higher image contrast can be
attained by using a Senarmont* or Brace-
Koehler compensator to change the
retardation level in the entire field of view.
* Used with monochromatic green filter, IF546 or IF550.
qU-CPA wU-P4RE eU-AN360P-2 rU-OPA tU-POC-2
qU-TP530 wU-TP137 eU-TAD rU-CBR1 tU-CBR2 yU-CWE2 uU-CSE iU-CBE oU-CTB
UPLFL-P Series
ACHN-P Series
Item N.A. W.D.
UPLFL 4XP 0.13 13.0mm
UPLFL 10XP 0.30 3.1mm
UPLFL 20XP 0.50 1.6mm
UPLFL 40XP 0.75 0.51mm
UPLFL 100XOP 1.30 0.10mm
Item N.A. W.D.
PLN 4XP 0.1 18.5mm
Measuring range of compensators
Compensator Measurement range Applications
Thick Berek (U-CTB) 0-11,000nm (20λ) Measurement of high retardation level (R*>3λ), (crystals, macromolecules, fiber, etc.)
Berek (U-CBE) 0-1,640nm (3λ) Measurement of retardation level (crystals, macromolecules, living organisms, etc.)
Senarmont compensator (U-CSE) 0-546nm (1λ)Measurement of retardation level (crystals, living organisms, etc.)
Enhancement of image contrast (living organisms, etc.)
Brace-Koehler compensator 1/10 λ (U-CBR1) 0-55nm (1/10 λ ) Measurement of low retardation level (living organisms, etc.)
Brace-Koehler compensator 1/30 λ (U-CBE2) 0-20nm (1/30 λ ) Enhancement of image contrast (living organisms, etc.)
Quartz wedge (U-CWE2) 500-2,200nm (4 λ ) Approximate measurement of retardation level (crystal, macromolecules, etc.)
*R= retardation level
For more accurate measurement, it is recommended that compensators (expect U-CWE2) be used together with
the interference filter 45-IF546.
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UPLFL-P Series
PLN
ACHN-P Series
*All UIS2 objectives and WHN eyepieces: lead-free eco-glass

Specifications are subject to change without any obligation on the part of the manufacturer.
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Item Conoscopic and orthoscopic observation (U-CPA) Orthoscopic observation (U-OPA)
F.N. 22 22
Bertrand lens Focusable —
Bertrand field stop ø3.4mm diameter (fixed) —
Analyzer slot Rotatable analyzer with slot (U-AN360P-2)
Analyzer 360° dial-rotatable
(U-AN360P-2) Rotatable minimum angle 0.1°
Revolving centerable nosepiece Quadruple, centerable attachable components: 1/4 wavelength retardation plate (U-TAD),
(U-P4RE) tint plate (U-TP530) and various compensators can be attached using plate adapter (U-TAD)
Polarizing rotatable stage with 3-point centering function.
360° rotatable, lockable in any position, 360° graduated in 1° increments
(minimum retardation resolution 6', using vernier scale)
45° click stop function
[Slide holder (U-SCB2) and mechanical stage (U-FMP) can be attached
Achromat strain-free condenser (U-POC-2), 360° rotatable polarizer with
swing-out achromatic top-lens, Click stop at position "0°" is adjustable.
N.A. 0.9 (top-lens in)
N.A. 0.18 (top-lens out)
Aperture iris diaphragm: adjustable from 2mm to 21mm diameters
Engage or disengage
Bertrand lens changeover
between orthoscopic and
conoscopic observation
Polarized light
intermediate attachment
(U-CPA or U-OPA) Position of slider [in
Position of slider _out —
Stage
(U-SRP)
Condenser
(U-POC-2)
BX51-P specifications
Printed in Japan M1691E-1104