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Dictionary » O » Optics

Optics

optics

That branch of physical science which treats of the nature and properties of light, the laws of its modification by opaque and transparent bodies, and the phenomena of vision.

Origin: Cf. F. Optique, L. Optice, Gr. (sc). See Optic.


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Re: Please help me decide which microscope to buy

An inverted scope has the optics below the stage, allowing you to get close (plastic-thickness) to the cells without dumping the objective into the culture media. This will probably limit the maximum magnification you can use, because ...

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by jonmoulton
Wed Nov 06, 2013 8:00 pm
 
Forum: General Discussion
Topic: Please help me decide which microscope to buy
Replies: 2
Views: 833

Re: Extra Light For Compound Light Microscope ???

... http://en.wikipedia.org/wiki/Dark_field http://en.wikipedia.org/wiki/Fluorescence_microscope http://en.wikipedia.org/wiki/Optics

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by jonmoulton
Wed Jul 31, 2013 3:18 pm
 
Forum: Cell Biology
Topic: Extra Light For Compound Light Microscope ???
Replies: 1
Views: 927

Re: Tools in Biology

... the material is distributed in the sample. However, to check for different excitation wavelengths and emission colors, you must switch part of the optics in the microscope. This is easy in most fluorescence microscope as you slide a different "cube" into the light path. A fluorescence ...

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by jonmoulton
Wed Mar 21, 2012 8:52 pm
 
Forum: General Discussion
Topic: Microscopy
Replies: 2
Views: 1554

Setting up a lab

... is OK (i use it for fungi) but gives you rather fuzzy pics at higher magnifications (above 200x). However, the latter microscope with integrated optics is really worth its price if you want to have more professional pics (way better contrast, sharp images even at higher magnifications) and videos ...

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by DanielSan
Mon Aug 08, 2011 6:55 am
 
Forum: Microbiology
Topic: Setting up a lab
Replies: 1
Views: 1513

Egg Yolk Coacervates & pH Imaging

... experts who I hope are here what you think I should do. Or what you would do with no more than $220 (less better) and a good junk pile of optics. Chemically, the pH of a coacervate should be determinable by color. That seems to work. Since the only bright yellow is the egg yolk coacervates ...

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by GaryGaulin
Tue Mar 03, 2009 3:02 pm
 
Forum: General Discussion
Topic: Egg Yolk Coacervates & pH Imaging
Replies: 0
Views: 3589
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