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Science Groups Forum Index » Techniques - Microscopy » What does HI mean?
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| Oncologists |
 Posted: Fri Nov 17, 2006 12:05 am |
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Guest
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On objective. Does this just mean high power (oil), or HI-dry, or maybe
something else? |
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| justbeats |
| Posted: Fri Nov 17, 2006 12:16 am |
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I think it's Homogenous Immersion - e.g. water, glycerin or oil. I'll
be corrected if I'm wrong ;-)
Oncologists wrote:
Quote: On objective. Does this just mean high power (oil), or HI-dry, or maybe
something else? |
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| Guest |
| Posted: Fri Nov 17, 2006 5:03 am |
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justbeats wrote:
Quote: I think it's Homogenous Immersion - e.g. water, glycerin or oil. I'll
be corrected if I'm wrong ;-)
I'm not sure about this, but, while I agree with the homogenous
immersion part, I think it refers only to the use of oil, not water,
etc.??? I've seen it used frequently on older ("short") Olympus and
Nikon 100x 1.25/1.3 na objectives.
Bob Marable
Quote: Oncologists wrote:
On objective. Does this just mean high power (oil), or HI-dry, or maybe
something else? |
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| NoSpam |
| Posted: Fri Nov 17, 2006 8:00 am |
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Guest
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HI is an abbreviation for "Homogenous Immersion" and
was used in the past to designate oil immersion objectives
for which the refractive index of lens glass, immersion oil
and the coverglass had to be very close for best performance.
This requirement is no longer valid for modern immersion
lenses.
G.R.
"Oncologists" <Oncologists@aol.com> wrote in message
news:1163703902.874234.274360@e3g2000cwe.googlegroups.com...
Quote: On objective. Does this just mean high power (oil), or HI-dry, or maybe
something else?
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