Older microscope, light source question
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Older microscope, light source question
Hi all!
Newbie here!
I just bought my first microscope. An older microscope that I can’t find any information on.
It came without light source. I have tried with a small flashlight but the image in the oculars is rather dark. Seems I need a more powerful light source.
The only other picture I have found of another identical microscope with a light source show some kind of holder. Is it a bulb in the holder and inserted into the light source holder on the microscope? What kind of bulb, how many watts etc.
Any input would be apreciated!
Thanks!
Newbie here!
I just bought my first microscope. An older microscope that I can’t find any information on.
It came without light source. I have tried with a small flashlight but the image in the oculars is rather dark. Seems I need a more powerful light source.
The only other picture I have found of another identical microscope with a light source show some kind of holder. Is it a bulb in the holder and inserted into the light source holder on the microscope? What kind of bulb, how many watts etc.
Any input would be apreciated!
Thanks!
- Attachments
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- Picture from internet
- D619DC3B-E418-4493-8F93-6581AEE9343D.jpeg (186.26 KiB) Viewed 3097 times
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- The light source holder on my microscope
- D5C78B30-BEA0-4483-9A43-4350747434D3.jpeg (161.13 KiB) Viewed 3097 times
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- The microscope in all
- 01563269-E40C-4F5E-B45B-61B1A9912B97.jpeg (227.61 KiB) Viewed 3097 times
Re: Older microscope, light source question
It was probably something in the 12-18w range initially. If you can follow a schematic and do basic electronics, I would consider putting an LED in there, 3-4w of LED would probably serve quite well. I would get something with a dimming circuit unless it has a neutral density filter that can swing in as even a few watts of LED can be harsh on the eye at times.
Re: Older microscope, light source question
Hi and welcome to the forum!
This is the most basic electric light and probably used a fridge or kitchen oven lamp, 220V 10W I think. You could simply use the lamp I showed in the other thread or build a dimmable LED into this lamp.
Will (today Hund) is a second row microscope maker in Wetzlar, where Leitz microscopes were made. They are known to provide good service even for amateurs.
Bob
This is the most basic electric light and probably used a fridge or kitchen oven lamp, 220V 10W I think. You could simply use the lamp I showed in the other thread or build a dimmable LED into this lamp.
Will (today Hund) is a second row microscope maker in Wetzlar, where Leitz microscopes were made. They are known to provide good service even for amateurs.
Bob
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Re: Older microscope, light source question
A led would be nice. But unfortunatley electronics is not my cup of tea…dtsh wrote: ↑Thu Sep 16, 2021 6:53 pmIt was probably something in the 12-18w range initially. If you can follow a schematic and do basic electronics, I would consider putting an LED in there, 3-4w of LED would probably serve quite well. I would get something with a dimming circuit unless it has a neutral density filter that can swing in as even a few watts of LED can be harsh on the eye at times.
Thanks!
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- Posts: 7
- Joined: Thu Sep 16, 2021 5:37 pm
Re: Older microscope, light source question
Thanks!MicroBob wrote: ↑Thu Sep 16, 2021 7:02 pmHi and welcome to the forum!
This is the most basic electric light and probably used a fridge or kitchen oven lamp, 220V 10W I think. You could simply use the lamp I showed in the other thread or build a dimmable LED into this lamp.
Will (today Hund) is a second row microscope maker in Wetzlar, where Leitz microscopes were made. They are known to provide good service even for amateurs.
Bob
In what thread did you show a lamp that could fit this microscope? EDIT: searched and found the post!
Nice that Will lives on today as Hund! Thanks for the info
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Re: Older microscope, light source question
Maybe this could be an alternative?
https://m.de.aliexpress.com/item/330432 ... 16c9c8efaa
https://m.de.aliexpress.com/item/330432 ... 16c9c8efaa
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Re: Older microscope, light source question
I have a microscope with a mirror as light source. What would be the advantage of this vs the mirror? Thanks!HobbyMekanik wrote: ↑Thu Sep 16, 2021 8:22 pmMaybe this could be an alternative?
https://m.de.aliexpress.com/item/330432 ... 16c9c8efaa
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Re: Older microscope, light source question
This light source works great. I’m gonna mill a holder for it in aluminim so it is secure and even a little tiltable.
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Re: Older microscope, light source question
A mirror is good as you can have a big, hot light some distance from your scope and not directly below the sample the only disadvantage is having to move around the mirror and lamp until you get a focused, centered light. If you have ever worked to adjust this finely only to trip on a cord moments later wrecking the setup then you have had at least a momentary yearning for built in illumination.smollerthings wrote: ↑Thu Sep 16, 2021 9:07 pmI have a microscope with a mirror as light source. What would be the advantage of this vs the mirror? Thanks!HobbyMekanik wrote: ↑Thu Sep 16, 2021 8:22 pmMaybe this could be an alternative?
https://m.de.aliexpress.com/item/330432 ... 16c9c8efaa
1942 Bausch and Lomb Series T Dynoptic, Custom Illumination
Re: Older microscope, light source question
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A mirror when used with an external lamp as shown below will give you Köhler
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A mirror when used with an external lamp as shown below will give you Köhler
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- Lamp-.jpg (54.25 KiB) Viewed 2946 times
Zeiss Standard WL (somewhat fashion challenged) & Wild M8
Olympus E-P2 (Micro Four Thirds Camera)
Olympus E-P2 (Micro Four Thirds Camera)
Re: Older microscope, light source question
In the foot of 75RRs Köhler lamp there is a gap. At this place a T-shaped aluminium connecting rod can be installed that connects this lamp to a Zeiss Jena LG. This gives a fairly stable setup of the light path. One disadvantage of mirror illumination is that the open side of the microscope faces away from the user.
Re: Older microscope, light source question
Essentially, that's what finite scopes evolved to provide in one package--a hot light source attached to the rear of the microscope with a mirror at the front to direct the light up through the field diaphragm. Of course, it makes for a large "footprint," but that also provides advantages. Some compromises, but hard to improve on the design--at least until LEDs came along...BramHuntingNematodes wrote: ↑Mon Sep 20, 2021 1:19 pmA mirror is good as you can have a big, hot light some distance from your scope and not directly below the sample the only disadvantage is having to move around the mirror and lamp until you get a focused, centered light. If you have ever worked to adjust this finely only to trip on a cord moments later wrecking the setup then you have had at least a momentary yearning for built in illumination.smollerthings wrote: ↑Thu Sep 16, 2021 9:07 pmI have a microscope with a mirror as light source. What would be the advantage of this vs the mirror? Thanks!HobbyMekanik wrote: ↑Thu Sep 16, 2021 8:22 pmMaybe this could be an alternative?
https://m.de.aliexpress.com/item/330432 ... 16c9c8efaa