4 X Y Translation
stage X-Y Translation Stage with solid brass microscope has a precision stage
that allows accurate X-Y translation movement of a specimen slide.These linear translation
stages feature two drum micrometer drives or two stepping motor drives respectively which
provide X and Y motion to align or manipulate.The translation stage has two brass rack and
pinion controls and the vernier scales have a resolution of 0.1 mm.The rack and pinion
focusing adjustment controls permit easy focusing and the specimen slide is secured by a
spring-loaded slide clip. For rear illumination there is an adjustable 1 1/2 inch (3.8 cm)
diameter two-sided mirror.We also offer a brass microscope without the 2-axis stage. For
vacuum applications, either version must be fitted with a bellows such as Huntington,
which allows for of motion to either side of the center line of the mounting flange. This
motion may be further limited by the radius of any shaft or device. |
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4 XYZ Translation x-, xy- and xyz- positioning
devices have the most important criterion involved in the construction of manually
adjustable positioning units( mirror and lens mounts, etc.) is precise, smooth and
repeatable lead screw travel. Today, with the advent of continually improved area- sensing
color scanners such as solid-state video cameras, re- searchers are beginning to apply
this most-convenient no- moving-parts technology to color measurement. Piezo
mirror-shifters are used for ultrafine axial positioning of mirrors and other optical
components without the use of heavy stages or other external guiding mechanisms. Piezo
mirror-shifters are internally preloaded resulting in high resonant frequencies,
outperforming hereby conventional arrangements like stages etc. with regard to dynamics
and stability. The best stray-light reduction in image scanners is achieved by expensive,
slow, and typically large high-end flatbed microdensitometers that employ mechanical
reciprocating motion on both image Cartesian-coordinate axes. Piezo mirror-shifters are
mainly used in coherent optics like interferometry or holography eg. phase shift
arrangements for measuring surface topographies with a resolution in the submicron range. |
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4 Iris Diaphragm
These iris diaphragms are mounted in housings and calibrated in terms of aperture diameter
in millimeters.Iris diaphragms are continuously variable field or aperture stops for the
use in optical experiments or apparatus. Irises provide the simplest means of controlling
the aperture of an optical system. The aperture may be continuously adjusted and then
locked in position by means of the clamp screw. Three sizes cover the majority of beam
sizes in common use. The bases are threaded 8-32 or M4 for inch or metric post mounting. A
mini-iris holder is offered complete with the iris installed. It can be supplied either
rod or base mounted. A clampable lever at the top can be rotated through 90 degrees to
alter the iris aperture continuously from 1 to 12mm. The iris has hardened and blackened
leaves. The diaphragm leaves are made of spring steel and can move smoothly within the
cylindrical mount made of brass. The diaphragm opening is adjusted by means of a radial
pin actuator with a small knob. Gradually and smoothly go to full closure. Uses two
counterrotating sets of leaves with an axial separation of about 5 mm. These are supplied
with blued steel leaves and blackened lightweight frames. Our irises have been designed to
give the best possible aperture shape and minimum thickness. Actuating lever travel is
approximately 90 for full travel.
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