RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
Dear friends, as always I turn to your knowledge to find out information about these devices at the base of the objectives its name and in which microscopes they are or were used.
Steve
Thank you
On the internet there is little to say nothing except the image that I include.
Steve
Thank you
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Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
On chemical microscopes met. microscopes and polarizing microscopes there were seldom revolving noepieces in the early days, up into the 1950s or even 60s. In order to speed up the changing of objectives a quick change mount was employed, each of which included centering screws so each objective could be threaded into the mount and then pre-centered in it's quick change mount. They had various names. I've seen stirrup mounts, akehurst slide mounts and even female to male R.M.S. mounts, which wouldn't be so quick. Baker used those on it's 1950's interference microscope. Most catalogue references I have seen called them centering mounts or quick change mounts or met. mounts or modified their technical style with quick change, such as quick change met. mount or the like. Microscope companies must have had jabber sessions trying to find their own name for the same thing. Spencer had a separable 10X objective while at Bausch & Lomb it was divisible.
There may be a generic term for those mounts but I can't think of it, if I ever heard it.
There may be a generic term for those mounts but I can't think of it, if I ever heard it.
Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
You are a human VADEMÉCUM on knowledge of the world of microscopes.
Thank you very much for your help and thanks to it I have been able to learn more about these peculiar mounts for polarized lenses.
Thank you very much for your help and thanks to it I have been able to learn more about these peculiar mounts for polarized lenses.
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- objetivos raros MICROSCOPIO.jpg (91.78 KiB) Viewed 1631 times
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- objetivos raros 02.jpg (87.33 KiB) Viewed 1631 times
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Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
Sometimes the objectives are very short, only about 1 cm. long. These were usually used when a vertical illuminator was placed between the objective and microscope body tube. Since the vertical illuminator increased the tube length, the upper part of the objective barrel which in the pre-plan era was empty in the short focal length objectives, was replaced by the depth of the vertical illuminator. This kept the microscope from being unnecessarily tall. You can see this feature to some degree in the ROW objectives. Some look a bit stubby. Perhaps their diascopic objectives were 45mm parfocal. I fon't know ROW very well. Some like Bausch & Lomb just had little button objectives but many were very high N.A. and fluorite too. Some companies just lengthened the tube. Reichert for instance maintained their 37mm parfocal objectives and increased the tube length to 215mm for the epi objectives, so all the necessary components had some room.
Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
apochronaut wrote: ↑Sat Apr 06, 2024 6:24 pmSometimes the objectives are very short, only about 1 cm. long. These were usually used when a vertical illuminator was placed between the objective and microscope body tube. Since the vertical illuminator increased the tube length, the upper part of the objective barrel which in the pre-plan era was empty in the short focal length objectives, was replaced by the depth of the vertical illuminator. This kept the microscope from being unnecessarily tall. You can see this feature to some degree in the ROW objectives. Some look a bit stubby. Perhaps their diascopic objectives were 45mm parfocal. I fon't know ROW very well. Some like Bausch & Lomb just had little button objectives but many were very high N.A. and fluorite too. Some companies just lengthened the tube. Reichert for instance maintained their 37mm parfocal objectives and increased the tube length to 215mm for the epi objectives, so all the necessary components had some room.
Very short 3 cm long and inside slider 1.5 cm Especially if it is taken into account that it is a100X n.a. 1.3Some look a bit stubby.
Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
This is the very oldest reference to this mounts that I have been able to find.
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- row 04.jpg (82.74 KiB) Viewed 1571 times
Re: RARE ADJUSTABLE ATTACHMENT FOR MICROSCOPE OBJECTIVES BASE
More information
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- Páginas desdemicoscopesmicros00carlrich.jpg (80.82 KiB) Viewed 1510 times