Maximum resolving power and depth of focus for a visual microscope

Maximum resolving power and depth of focus for a visual microscope

Table
Maximum resolving power and depth of focus for a visual microscope
objective focal length (mm) numerical aperture (N.A.) maximum useful magnification in compound microscope maximum resolution on object (mm) objective depth of focus (mm)
32 0.10 100× 0.0025 0.025
16 0.25 250× 0.001 0.0038
  8 0.50 500× 0.0005 0.00086
  4 0.95 1,000× 0.00026 0.00024
  3 1.38 1,500× (oil immersion) 0.00018 0.00010
See as table:

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • microscope — /muy kreuh skohp /, n. 1. an optical instrument having a magnifying lens or a combination of lenses for inspecting objects too small to be seen or too small to be seen distinctly and in detail by the unaided eye. 2. (cap.) Astron. the… …   Universalium

  • photography, technology of — Introduction       equipment, techniques, and processes used in the production of photographs.  The most widely used photographic process is the black and white negative–positive system (Figure 1 >). In the camera the lens projects an image of… …   Universalium

  • Eye — For other uses, see Eye (disambiguation), Ocular (disambiguation), Ocular, and Oculus. For taxon specific articles, see human eye, simple eye in invertebrates, mollusc eye, and arthropod eye. Eye …   Wikipedia

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

  • Life Sciences — ▪ 2009 Introduction Zoology       In 2008 several zoological studies provided new insights into how species life history traits (such as the timing of reproduction or the length of life of adult individuals) are derived in part as responses to… …   Universalium

  • Binoculars — Binocular telescopes, or binoculars (also known as field glasses), are two identical or mirror symmetrical telescopes mounted side by side and aligned to point accurately in the same direction, allowing the viewer to use both eyes (binocular… …   Wikipedia

  • chemical bonding — ▪ chemistry Introduction       any of the interactions that account for the association of atoms into molecules, ions, crystals, and other stable species that make up the familiar substances of the everyday world. When atoms approach one another …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”