Large Working Distance Microscope

Working distance refers to the space between the front lens element or tip of the microscope lens and the closest cover slip surface.

Large working distance microscope.

It decreases as magnification resolution and numerical aperture increase. The single beam path provides 2d images and ensures parallax free imaging. Microscope objectives are generally designed with a short free working distance which is defined as the distance from the front lens element of the objective to the closest surface of the coverslip when the specimen is in sharp focus. Microscope objectives are usually designed with short working distances.

In general the objective working distance decreases as the magnification and numerical aperture both increase as presented in table 1 for a highly corrected series of nikon plan fluorite. The objectives are called plan because they produce the flat image across the field of view. All objectives have flat image surface over 42mm field of view highest standard in the objective design. Microscopes use a parfocal lens that stays in focus when the magnification or focal length changes.

Vitiny um08 csz1236 large fov tabletop hdmi inspection microscope is suitable for speedy inspection on industrial production line because it delivers full hd 1080p images at 60 fps. The stage working distance is the vertical distance. Together with the leica dfc cameras and the leica applications suite this is ideal for digital imaging. Working distance can range from 50 mm for dissecting or stereo microscope objectives to less than 0 1 mm for high power oil immersion objectives.

For tasks where extra distance to the object and a larger field of view is required dino lite offers a series of long working distance microscopes. Thanks to its advanced optical design including an aspherical element and optimized coatings that minimize. The cover slip is the thin protector cover placed over a specimen. Long working distance objectives these objective lenses provide a longer working distance when compared to standard objectives without compromising magnification.

The extra working distance and larger field of view make this series an ideal solution for tasks such as repair rework or assembly or for working with bulky objects. Dino lite long working distance. Long working distance microscope objectives are designed around 426 to 656 nm to provide a chromatic aberration free image with flat field correction. Holmarc developed super long working distance microscope objective for high image quality inspection and analysis application.

The modular design allows an optimized configuration for the individual applications. Presented in figure 1 is a schematic illustration of an objective showing the parfocal and working distance length specifications as well as other descriptions engraved or printed on the objective barrel. The leica z16 apo is a fully apochromatic zoom system for high contrast high resolution detailed analysis. The special designed lens offers a long working distance with larger field of view 4 inches.