I think that's near the time the Polyvar first came out, but I am not sure of any overlap I see the date on some manuals but how long before that date the microscope was in production, I don't know.
It would seem odd that such a scope was only built for 5 years but then, maybe the Polyvar pretty much duplicated it's capability at a lower price. I know that the Zeiss Axiomat was discontinued , partially due to it's excessive cost.
Info about this microscope does seem to be extremely sparse. Perhaps someone from Austria who knows something about the Reichert company will chime in and educate all of us. It's too bad that the company absorptions and mergers especially, in this case, the Leica Group formation? But, gotta make way for the new stuff, and purge those pesky products and support issues from the past!!
BTW, burn all those old manuals, they're interfering with sales As of about the year , when they were still making the Microstar and Diastar with the Leica brand on them, the AO archives were at the plant in Buffalo, because I had someone dig out something from them, for me. Since the plant is still going strong, only has shifted to exclusively opthalmic products, I would guess that the archives are still there and since Reichert is still going strong but has shifted to instruments for sample preparation for transmission electron microscopy, my guess is that the Reichert archives are still at the plant in Austria.
Since the two companies were in a degree of lockstep, there may be quite a bit of Reichert info. I have found out a fair amount of technical information by searching patents. The patent literature contains a list of citations that the patent refers to and additionally, it is referenced by succeeding patents.
Following the citation and reference trails can bring up a lot of information about whatever specific detail or design feature one might be looking for from a specific manufacturer.
It helps to know the name of a patent applicant but once into the text of one patent, you can get to a lot of information not directly related to the original patent search by following the trails I hadn't thought of researching patents. What program did you use for layout on your Univar project? It looks very good. Regards, Will. I used Softmaker Presentations, a slide-based presentation program like Powerpoint. It was much, much easier to use this than a word-processing program, since the slide-based approach uses text-boxes and graphics boxes that you can position anywhere, and matched the format of the Univar manual drawings and paragraphs in sort of a two-column format , whereas a word-processor would involve magnitudes of greater difficulty in handling and formatting the mix.
At least to me, a non-professional at word-processing. If I ever had to write a tech manual from now on, I would do it the same way. Softmaker is a German company, coincidentally enough and they offer a non-time-limited, free version of their office suite called Freeoffice. Objective range. This period for Reichert used RMS pre-DIN objectives, two different styles can be found depending on vintage the latter ones having a more modern simpler appearance.
Unlike Zeiss and Leitz of this era Reichert's range seems a bit limited, there are few fluorite's and no apochromats to be seen in the line-up. Semi-plan and plan were available both in phase, anoptral and none phase variants with the usual 2. A good number of special epi objectives completed the catalogue. Some examples of typical objectives can be seen on both turrets in the overview photo's although in Fig 9. The lamp assembly for the Zetopan uses a 30 watt tungsten lamp, the alternative high power watt differs in being rectangular and uses a halogen bulb.
A curved mirror behind the bulb helps to even out the open filament construction of the bulb. The bulbs are hard to come by, my brother managed to source 2 new old stock original Reichert bulbs in the U. K, no bulb was fitted on receipt so I have one spare but always using the supply from 0 volts and winding up the volts should give a good life and current limiting on the p.
Unlike later Zeiss and Leitz lamp assemblies with several tweaks to obtain the most accurate and even illumination this is rather crude by push pulling the bulb holder and twisting. A variable condenser lens can be used for optimal evenness of field together with a field diaphragm when the 2 diaphragm Berek style condenser is not used. The whole assembly fits on a quick release substantial dovetail at the rear of the base. Fig The above picture shows an old Lomo lamp assembly including an original 9 volt 15 watt Russian lamp with rounded front, later 6 volt Philips replacements tend to be square fronted.
This rounded front is important as it can snugly fit next to the curved frosted condenser lens in the base [similar to the Wild M20]. From a picture of an original Neozet lamp assembly part of an eBay sale recently this is a close match.
The rubber 'O'' rings are to accurately centre the tube in the base port as the Lomo is smaller diameter. The original lamp was missing from the stand but this works pretty well and provides just enough light for most purposes on the Neozet. A modern light weight general purpose switch-mode 5 amp regulated power supply with variable voltage output and current limiter can be used for both the 6 volt 30 watt Zetopan bulb and lamp assembly for the Neozet, the latter of which I guess would have been probably 6 volt 15 or 20 watt.
Original power supplies for both stands were missing. Compared to the heavy bulky transformer based power supplies of the period which often hum loudly this type of supply is totally quiet and a pleasure to use and barely weighs more than a kilo plus added benefit of digital display of voltage and current. The usually supplied 2 diaphragm [Leitz Berek style] 0.
I have never been able to get the full numerical aperture out of this condenser as stated which remains a mystery. Compatible with both the Zetopan and Neozet. The np condenser does provide better cross-polar extinction compared to the normal as I have one of each. Polyphos condenser suitable for phase, anoptral and darkfield with a poor brightfield option, lowered here for better view.
Anoptral contrast is an alternative to Zernike style phase contrast but the objectives tend to have the annulus further out as seen looking at the rear of the objective. The phase ring on the yellow banded anoptral objectives, [red bands for phase contrast] differ in that it is of different material deposit on the glass to that of phase objectives this gives a light brown background rather than the grey.
Excellent resolution is possible and the 40x n. The anoptral contrast system is peculiar to Reichert. The condenser large rotating control surface is a pleasure to use with a smooth damped feel, good darkfield is obtainable on low power objectives.
The alloy control rod on the base of the stand swings through 90 degrees and brings in either a lens or plain glass, these rotate on an enclosed turntable directly in front of the mirror which is included in the mechanism, the whole assembly is easily removed from the base for cleaning.
The optics selected depends on the condenser and is used in conjunction with a field diaphragm at the back of both scopes when the Berek style condenser is not in situ, this system is used on both stands although in different formats.
I have used this condenser with Zeiss objectives, the 25x n. An excellent condenser! Darkfield condenser in original felt lined case, normally oil immersed with n. As is, this fits some of Reichert's other stands further down the pecking order.
Standard turret condenser with 2 variants. This 0. I have never achieved the stated n. The condenser is shown with the correct clip-on fitting for both the Zetopan and Neozet substages.
Several positions including brightfield setting with iris and some empty apertures, can be used with both anoptral contrast and standard phase objectives. Later ones could be found in grey metallic paint to match my Reichert. Caution has to be used as occasionally you will find a combination of later objectives and earlier condensers like this black one where the phase annuli don't match as is the case with a 25x anoptral objective I have.
Below the condenser is a swing in correcting lens for low power work when used with the Zetopan. This condenser seems mis-matched with the Neozet although one looking very much like is seen in the brochure. Epi illumination. The Zetopan epi illumination assembly seen from underneath. This Zetopan epi system as stated before is incompatible with the Neozet which has its own system.
Both these microscopes are of excellent quality, if I had to choose one it would be the Zetopan as they are more abundant, the photo port is useful together with better documentation and accessories available. The Neozet being of the same research grade should use the same accessories as its bigger brother in my opinion and its downfall, against the opposition at the time from Zeiss and Leitz, users may have preferred them over the Neozet and I think the autofocus mechanism over complicates the mechanics and is unnecessary.
Comments to the author Ian Walker are welcomed. I would be very interested in obtaining further resources on the Neozet, in particular the manual and brochures.
Also a manual for the Polyphos. Editor's note added August 13th Ian no longer has the stands described so the information request is now void. He is also not able to help with queries on such stands, now having no hands-on access to them.
Resources: Gordon Couger's excellent website www.
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