Re: Dimensions of Zeiss Phase 1 plate?
- From: cladocera56@xxxxxxxxxxxx
- Date: 27 Feb 2007 10:41:32 -0800
On Feb 26, 11:29 am, "Oncologists" <Oncologi...@xxxxxxx> wrote:
Does anyone have the dimensions of a Zeiss Ph1 phase plate, please?
Outer diameter + inner diameter would be much appreciated.
Incidentally, there is a scaleable template buried in the artwork in
MSWord, which can be printed on to an acetate - or at least, that is
what I am trying to do!
Not as messy as a sooty candle.....
Thnx, HJ
Hi
My Zeiss PH1 plate is homemade so pending some accurate measurements
offered from an undamaged one, a central diameter of 3.7 mm and
annulus width 0.4 mm works fine on my 1970s vintage Zeiss stand with
achro / apl phase condenser and Zeiss 10/0.22 Ph objective. The
annulus could do to be a bit bigger if I redo it but works well
enough.
It's possible to measure the desired annulus pretty well with a 'phase
ruler', ie concentric rings of known width printed from e.g. a CAD
package placed in the phase stop plane and the inner and outer annulus
lines determined with a phase telescope. Then print this out blackened
in. Although the PH1 will be the trickiest being the smallest. Ian
Walker has a downloadable 'phase ruler' in TurboCad format on
'Micscape' (3-12 mm in 0.5 mm steps). The condenser focus can usually
take up small errors.
http://www.microscopy-uk.org.uk/mag/imgsep04/phaseruler.tcw
Some hobbyists stick together two back to back printouts to make the
acetate plate denser, athough found on my printer this wasn't dense
enough so painted mine on a slide ringing table feathering the paint
almost but not quite to the annulus edges so that the neat printed out
circle is retained but the black areas are made denser with paint.
Good luck!
regards
David
.
- References:
- Dimensions of Zeiss Phase 1 plate?
- From: Oncologists
- Dimensions of Zeiss Phase 1 plate?
- Prev by Date: Dimensions of Zeiss Phase 1 plate?
- Next by Date: Need advice about packing and shipping a microscope
- Previous by thread: Dimensions of Zeiss Phase 1 plate?
- Next by thread: Need advice about packing and shipping a microscope
- Index(es):
Relevant Pages
|
|
