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IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Sun May 07, 2023 12:20 pm
by stjepo
Can someone help me identify this brand of microscope objective?
Thank you very much and greetings
Steve
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Sun May 07, 2023 9:05 pm
by PeteM
Steve,
It looks much like the Union Optical Co. (Japan) logo.
Pix below:
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- Union Optical Col logo.png (316.05 KiB) Viewed 1097 times
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Sun May 07, 2023 9:37 pm
by stjepo
Thank you very much for your help.
The logo looks the same but the name.
Regards
Steve
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Sun May 07, 2023 10:00 pm
by Scarodactyl
Yeah, that is union. They sold scopes to a lot of rebadgers, particularly unitron but also wesco and others. They're still around too.
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Mon May 08, 2023 7:49 am
by stjepo
- dz3.jpg (65.08 KiB) Viewed 1048 times
Thanks to PeteM I have found the brand. The only information I had was that it was used in this DZ3 High Magnification & High Resolution Zoom Microscope old model (replaced with the DZ4).
Yes, the company still around selling precision instruments.
The old logo has evolved as you can see that was used in their old products and only the the red name logo was kept.
Thank you PeteM for your help.
Steve
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Mon May 08, 2023 9:08 am
by apochronaut
It was common in the cases of numerous companies to adopt a stylized group of lenses and or prisms as a logo and sometimes fit a name in there. Bausch & Lomb went through various versions of their inverted prism and at one time , when the triple alliance was active it included the nsmes Zeiss and Saegmuiier as well as B & L. It seemed to peak in Japan , where the actual names took some time to establish but the hope was that the logo would be reconizable.
Nippon Kogaku earlier, about up to 1954 used no name on their objectives, just the Nippon Kogaku bi-convex lens transitting an equalateral prism. It is usually seen with the words Nippon Kogaku Tokyo entered into the 3 sections created by the design but on early objectives it is just the blocked out design. I looked for a while to find old Nippon Kogaku objectives to restore an old horseshoe research stand to no avail. I suspect many, once removed from the stand were abandoned in drawers or tossed in a cleanup. The word Nikon showed up around 1954. In the 1980's I came across a Chinese objective that had the blank Nippon Kogaku logo but not quite. The N.K. prism has plane edges, so is 6 sided, not 3 sided with points as in the Chinese factory style..
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Thu May 25, 2023 10:22 am
by ADi
Hi Steve,
I have a PL M100/0.90 oo (410590) from Union Optical.
The logo is the same as on our lens.
BTW, this lens has a very good performance.
Best, ADi
Re: IDENTIFY OBJECTIVE MICROSCOPE BRAND
Posted: Fri May 26, 2023 12:54 am
by Scarodactyl
I got a set of their splms (plan apo metallurgical), all badly delaminated. Real bummer.