| Dictionary, Encyclopedia and Thesaurus - The Free Dictionary 3,903,383,331 visitors served. |
Dictionary/ thesaurus | Medical dictionary | Legal dictionary | Financial dictionary | Acronyms | Idioms | Encyclopedia | Wikipedia encyclopedia | ? |
Huygens' eyepiece |
0.01 sec. |
|
|
Huygens' eyepiece
n (Physics / General Physics) Physics a telescope eyepiece consisting of two planoconvex lenses separated by a distance equal to half the sum of their focal lengths, which are in the ratio of three to one, and oriented so that their curved surfaces face the incident light [named after Christiaan Huygens (1629-95), Dutch physicist] Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
|
| Dictionary, Thesaurus, and Translations |
| Free Tools: |
For surfers:
Free toolbar & extensions |
Word of the Day |
Help
For webmasters: Free content | Linking | Lookup box | Double-click lookup |
|---|