focal power

Also found in: Medical

0.01 sec.

focal power [′fō·kəl ‚pau̇·ər]

(optics)

A measure of the ability of a lens, mirror, prism, or optical system to converge a parallel beam of light; equals the reciprocal of the focal length. Also known as power.

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.

?Page tools

Printer friendly
Cite / link

Feedback

Mentioned in	?		References in periodicals archive	?		Encyclopedia browser	?		Full browser	?
No references found			Toric contact lenses are created with two focal powers in them, as opposed to regular contacts, which only have one. The Truth About Toric Contact Lenses by Lisa Moore / Food/cooking/nutrition community			foamed blast-furnace slag Foamed Ceramics foamed concrete foamed plastic foamed polystyrene foamed slag foamed-in-place insulation foamed-in-situ plastics foamflower foaminess foaming Foaming Agent Foard County Foawr FOB FOCA FOCAL focal adhesion plaque focal chord focal distance focal infection focal length focal lines focal plane focal point focal power focal property focal radius focal ratio focal seizure focal spot focal-plane array Focal-Plane Shutter Foch Foch space Foch, Ferdinand Focillon, Henri FOCIS Fock, Jeno Focke-Wulf 190 FOCL focometer Focsani Focus focus control FOCUS Desktop FOCUS Fusion focus group focus lamp Focus of Mass Destruction focus projection and scanning			focal plane focal plane focal plane Focal plane array Focal Plane Assembly Focal Plane Assembly Shroud Focal Plane Electronics Focal Plane Instrument Focal Plane Package Focal Plane Science Instrument Focal plane shutter Focal Plane Structure Focal Plane Structure Simulator Focal Plane Target Fixture focal planes focal planes focal planes focal point focal point focal point focal point Focal Point Array Focal Point of Maidenhead focal point of the complaint Focal Point on Disaster Evaluation Focal Point Review Focal points Focal points Focal points Focal points focal power Focal Proliferative Endo and Extracapillary Glomerulonephritis focal property focal radius focal ratio focal ratio focal ratio focal reaction Focal Renal Cortical Retention focal ring cataract focal ring cataract focal ring cataract focal ring cataract Focal Segmental Endocapillary Proliferation Focal Segmental Glomerular Sclerosis and Hyalinosis Focal Segmental Glomerulersclerosis Focal Segmental Glomerulonephritis focal segmental glomerulosclerosis focal segmental glomerulosclerosis focal segmental glomerulosclerosis Focal Segmental Sclerosing Glomerulopathy Focal Segmentary Glomerular Hyalinosis focal seizure focal seizure focal seizure focal seizure focal seizure disorder Focal seizures Focal seizures Focal seizures focal spot

Encyclopedia

Free Tools:	For surfers: Free toolbar & extensions \| Word of the Day \| Help For webmasters: Free content \| Linking \| Lookup box \| Double-click lookup

Disclaimer
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.