#ERNST LEITZ WETZLAR MICROSCOPE 1920A HOW TO#
#ERNST LEITZ WETZLAR MICROSCOPE 1920A MOVIE#
#ERNST LEITZ WETZLAR MICROSCOPE 1920A FULL#

Many attributes of the Orthoplan were incorporated in the Aristoplan and it may also be used for a full range of imaging techniques including phase contrast and differential phase contrast, fluorescence and darkfield.Ī top of the line research grade Leitz microscope, the size is approximately the same and many components are interchangeable with the Orthoplan. The successor to the Orthoplan as top of the line of Leitz microscopes, this model was released in 1986. This Leitz microscope was designed to be an effective tool for decades. In the case of the fine focus adjustment mechanism, planetary gears allow for a precision of movement resulting in one division of adjustment equal to one micrometer of stage displacement for an accuracy of 0.001mm of movement.Įven with the improvements and minor changes of the Orthoplan over the years, all of the models components are interchangeable with every other Orthoplan. Leitz microscopes are designed for precision in every aspect of their usage. All moving parts on the Orthoplan were engineered with ball bearings. The color corrected objectives vary in magnification from 4X to 100X. Three different 170mm body tubes were made for this unit along with seven different nosepieces and 14 condensers.Įach of the four different types of lamphouses can accept mercury, xenon, or halogen bulbs. The many different types of interchangeable components for this Leitz microscope allows customization of virtually every segment of the unit.

Epi illumination schemes for each viewing techniqueĪll of these variations can be accomplished by replacing a standard microscope component with a specialized condenser, body tube, illumination source, or nosepiece.

It was designed to be able to accommodate many imaging techniques including: Manufactured in black, hammer-tone gray, silver gray, and ivory, the first black units are rare and considered to be quite collectable.Ī rather large microscope weighing 44 lbs in its pristine state, when accessorized for some viewing methods it weighs upwards of 60 lbs. The first widefield microscope, its field of view was 28mm which more than doubled the viewing field of existing microscopes. This modular system can be used for all types of microscopy with the addition o f the proper accessory package and is still in use in many research facilities. The Orthoplan was produced without significant design changes for 25 years. The venerable Orthoplan was the premier model manufactured from 1966-1991. Leitz microscopes are known for their high quality and durability. This company merged with the Cambridge Instrument Company in 1990 and was reborn as the Leica Holding B.V. Leica is now the brand name for what used to be known as Leitz microscopes. Ownership of Leitz changed hands over the 1970’s and 1980’s and for several years operated as Wild Leitz Holding AG.

Through the years, Leitz microscopes have continued to evolve as cameras and other products have assumed greater prominence in its product mix. The 1950’s and 1960’s were earmarked by competition with Zeiss microscopes, with each company trying to best the other. Then in the 1970’s, competition with Japanese companies such as Olympus and Nikon shrank market share and profitability.

#ERNST LEITZ WETZLAR MICROSCOPE 1920A HOW TO#

Max Berek, discovering how to mathematically compute the depth of field in microscope imagery. The company was at the forefront of polarized light microscopy with one of its engineers, Dr. Polarizing Leitz microscopes were introduced in 1885. Leitz was a wellspring of innovation and started producing microscopes with hollow frames, built-in illumination sources to replace reflector mirrors, and pioneered phase contrast, dark field imaging, and camera mounts and cameras specifically for photomicrography.

#ERNST LEITZ WETZLAR MICROSCOPE 1920A MOVIE#

By the end of the first decade of the 20 th century, Leitz had expanded its product line to include film projectors for the nascent movie industry and binoculars.

In the first 20 years the company produced 15,000 microscopes. While telescopes were the original focus of the business, microscopes soon became the primary product.Įrnst Leitz was hired as an engineer 1865 and was running the company by 1869 when he reorganized it as the Optical Institute of Ernst Leitz. The Leitz microscope traces its lineage to a company founded in 1849 in Wetzlar, Germany, the Optical Institute.

Ernst leitz wetzlar microscope 1920a