Numerical aperture - Revision history

2A02:1810:3:F800:85DB:1BFD:CD5A:9677: /* Numerical aperture versus f-number */

2014-08-25T09:26:44Z

Numerical aperture versus f-number

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en>Srleffler: Reverted edits by 14.139.238.98 (talk) to last version by Srleffler

2014-02-11T07:18:54Z

Reverted edits by 14.139.238.98 (talk) to last version by Srleffler

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en>Srleffler: Reverted edits by 117.211.147.129 (talk) to last version by Srleffler

2014-01-21T01:34:52Z

Reverted edits by 117.211.147.129 (talk) to last version by Srleffler

← Older revision		Revision as of 03:34, 21 January 2014
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	~~== New Balance Outlet Tawa but~~ it'~~s true~~. ~~Solutions ==~~		In [[optics]], '''optical path length (OPL)''' or '''optical distance''' is the product of the geometric length of the path light follows through the system, and the [[index of refraction]] of the [[Medium (optics)\|medium]] through which it propagates. A difference in optical path length between two paths is often called the '''optical path difference (OPD)'''. Optical path length is important because it determines the [[Phase (waves)\|phase]] of the light and governs [[Interference (wave propagation)\|interference]] and [[diffraction]] of light as it propagates.

	~~No one cares about~~ the ~~editorial/advertising~~ [~~http://www~~.~~opmer~~.~~com/xml/cache.asp?id=17 New Balance Outlet Tawa] divide:~~ the ~~very concept seems silly. It won't take~~ a ~~lot for Poole~~ to ~~achieve 1,000 rushing yards for~~ the ~~season, but it will be an~~ [~~http://www.interiorcurtaincentre.co.uk/images/class.asp?u=136-Mens-New-Balance-410-Trainers Mens New Balance 410 Trainers~~] ~~impressive accomplishment. A gyro sandwich (pronounced YEER oh) consists~~ of ~~various rotisseried~~ [~~http~~://~~www.opmer.com/xml/cache.asp?id=35 New Balance Toddler Shoes Nz] meats, salad vegetables such as tomatoes, lettuce~~ and ~~onions, along with a yogurt based tzatziki sauce.~~ <br><br>~~At midnight on New Year Eve, Filipino families meet up and partake in a New Year feast together to celebrate~~ the ~~coming~~ of ~~a brand new year. And of course~~, ~~it didn take long for some wise guys to have fun, and others to get a healthy heaping of egg on their face..~~ <br><br>~~It's hard to believe that UT has spent several years looking for a consistent returner, but it's true. Solutions~~ (~~types in google and it the first listing)~~. ~~Your video format settings happen to be saved~~. ~~Selected students may participate in Thematic Option~~, ~~USC~~'~~s interdisciplinary undergraduate honors program.~~ <br><br>~~The complexity of~~ the ~~topic will depend on how long your students have for that assignment~~ (~~a week is generally a good period of time [http://www~~.~~interiorcurtaincentre~~.co.~~uk/images/class.asp?u~~=~~68-New-Balance-373 New Balance 373]~~ for a ~~standard five paragraph essay or perhaps a 500 word composition). Her Facebook page boasts more than 15 million likes and she or he has over 5 million followers on Twitter.~~ <br><br>~~Most of~~ the ~~people happened to be for this reason happy to learn all of them and curently have absolutely been enjoying them. Cons~~: ~~I had been there with a friend so we ordered a salad to talk about. I have some ideas and I am really excited to brain storm along with you on how we can help each other.~~ <br><br>~~I had two years~~ of ~~high school french~~, ~~a very long time ago~~, ~~but I could remember~~ the ~~very basics~~. ~~The photo appears on~~ the ~~independent Chicago Web site~~ as ~~part~~ of a ~~story about John Edwards and the lover~~, ~~Rielle Hunter~~, ~~although~~ the ~~model utilized in the picture is not directly related~~ to the ~~subjects~~. ~~<br><br>~~The ~~part of~~ the ~~brain affected is that which sends messages~~ to ~~muscles~~. ~~Or may be reading this. At home~~, ~~my DVR captures BBC News~~, ~~ABC News, The Daily Show and also~~ the ~~Colbert Report. This company truly watches your back.. To try~~ the ~~demos please log on with the username demo and password demo or you~~ can ~~register for free~~.~~. <br><br>Try to load your website on a mobile device and appraise~~ the ~~download time. Methadone relieves withdrawal symptoms and combats~~ the ~~longing for opioids. Use your conception while fine tuning your cartoon with detailing.. Arabs hold more complex attitudes toward their countries' bilateral relations with France,~~ the ~~US, and the UK than is often supposed~~.~~<ul>~~		==Optical path difference (OPD)==

	~~<li>~~[~~http://www.promo-grimpe.com/spip.php?article124/ http://www.promo-grimpe.com/spip.php?article124/~~]~~</li>~~		''Optical path difference'' is the [[phase shift]] which happens between two previously [[coherent]] sources when passed through different mediums. For example a wave passed through glass will appear to travel a greater distance than an identical wave in air. This is because the source in the glass will have experienced a greater number of wavelengths due to the higher [[refractive index]] of the [[glass]].

	~~<li>~~[~~http://www.gylhe.com/news/html/?1636682.html http://www.gylhe.com/news/html/?1636682.html~~]~~</li>~~		The OPD can be calculated from the following equation:

	~~<li>~~[~~http://enseignement-lsf.com/spip.php?article64#forum18268183 http://enseignement-lsf.com/spip.php?article64#forum18268183~~]~~</li>~~		:<math>\mathrm{OPD}= d_1 n_1 - d_2 n_2</math>
			where ''d''<sub>1</sub> and ''d''<sub>2</sub> are the distances of the ray passing through medium 1 or 2, ''n''<sub>1</sub> is the greater refractive index (e.g., glass) and ''n''<sub>2</sub> is the smaller refractive index (e.g., air).
	~~<li>[http://www.achicourtautrement.fr/spip.php?article451/ http://www.achicourtautrement.fr/spip.php?article451/]</li>~~
			==Details==
	~~<li>[http://www~~.~~da0734~~.~~com/forum.php?mod~~=~~viewthread&tid~~=~~406961&fromuid~~=~~75090 http://www.da0734.com/forum.php?mod~~=~~viewthread&tid~~=~~406961&fromuid=75090~~]~~</li>~~		In a medium of constant refractive index, ''n'', the OPL for a path of physical length ''d'' is just

	~~</ul>~~		:<math>\mathrm{OPL} = nd .\,</math>

			If the refractive index varies along the path, the OPL is given by

			:<math>\mathrm{OPL} = \int_C n(s) \mathrm d s,\quad</math>

			where ''n''(''s'') is the local refractive index as a function of distance, ''s'', along the path ''C''.

			An [[electromagnetic wave]] that travels a path of given optical path length arrives with the same phase shift as if it had traveled a path of that ''physical'' length in a [[vacuum]]. Thus, if a [[wave]] is traveling through several different media, then the optical path length of each medium can be added to find the total optical path length. The optical path difference between the paths taken by two identical waves can then be used to find the phase change. Finally, using the phase change, the interference between the two waves can be calculated.

			[[Fermat's principle]] states that the path light takes between two points is the path that has the minimum optical path length.

			==See also==
			*[[Lagrangian optics]]
			*[[Hamiltonian optics]]
			*[[Fermat's principle]]

			==References==
			*{{FS1037C MS188}}
			*{{cite book \| last = Jenkins \| first = F. \| coauthors = White, H. \| title = ''Fundamentals of Optics'' \|edition = 4th Edition \| publisher = McGraw-Hill \| year = 1976 \| isbn = 0-07-032330-5 }}

			[[Category:Geometrical optics]]
			[[Category:Physical optics]]

en>MelbourneStar: Reverted edit(s) by 210.212.249.130 identified as test/vandalism using STiki

2012-08-24T11:14:09Z

Reverted edit(s) by 210.212.249.130 identified as test/vandalism using STiki

New page

== New Balance Outlet Tawa but it's true. Solutions ==

No one cares about the editorial/advertising [http://www.opmer.com/xml/cache.asp?id=17 New Balance Outlet Tawa] divide: the very concept seems silly. It won't take a lot for Poole to achieve 1,000 rushing yards for the season, but it will be an [http://www.interiorcurtaincentre.co.uk/images/class.asp?u=136-Mens-New-Balance-410-Trainers Mens New Balance 410 Trainers] impressive accomplishment. A gyro sandwich (pronounced YEER oh) consists of various rotisseried [http://www.opmer.com/xml/cache.asp?id=35 New Balance Toddler Shoes Nz] meats, salad vegetables such as tomatoes, lettuce and onions, along with a yogurt based tzatziki sauce. At midnight on New Year Eve, Filipino families meet up and partake in a New Year feast together to celebrate the coming of a brand new year. And of course, it didn take long for some wise guys to have fun, and others to get a healthy heaping of egg on their face.. It's hard to believe that UT has spent several years looking for a consistent returner, but it's true. Solutions (types in google and it the first listing). Your video format settings happen to be saved. Selected students may participate in Thematic Option, USC's interdisciplinary undergraduate honors program. The complexity of the topic will depend on how long your students have for that assignment (a week is generally a good period of time [http://www.interiorcurtaincentre.co.uk/images/class.asp?u=68-New-Balance-373 New Balance 373] for a standard five paragraph essay or perhaps a 500 word composition). Her Facebook page boasts more than 15 million likes and she or he has over 5 million followers on Twitter. Most of the people happened to be for this reason happy to learn all of them and curently have absolutely been enjoying them. Cons: I had been there with a friend so we ordered a salad to talk about. I have some ideas and I am really excited to brain storm along with you on how we can help each other. I had two years of high school french, a very long time ago, but I could remember the very basics. The photo appears on the independent Chicago Web site as part of a story about John Edwards and the lover, Rielle Hunter, although the model utilized in the picture is not directly related to the subjects. The part of the brain affected is that which sends messages to muscles. Or may be reading this. At home, my DVR captures BBC News, ABC News, The Daily Show and also the Colbert Report. This company truly watches your back.. To try the demos please log on with the username demo and password demo or you can register for free.. Try to load your website on a mobile device and appraise the download time. Methadone relieves withdrawal symptoms and combats the longing for opioids. Use your conception while fine tuning your cartoon with detailing.. Arabs hold more complex attitudes toward their countries' bilateral relations with France, the US, and the UK than is often supposed.<ul>

<li>[http://www.promo-grimpe.com/spip.php?article124/ http://www.promo-grimpe.com/spip.php?article124/]</li>

<li>[http://www.gylhe.com/news/html/?1636682.html http://www.gylhe.com/news/html/?1636682.html]</li>

<li>[http://enseignement-lsf.com/spip.php?article64#forum18268183 http://enseignement-lsf.com/spip.php?article64#forum18268183]</li>

<li>[http://www.achicourtautrement.fr/spip.php?article451/ http://www.achicourtautrement.fr/spip.php?article451/]</li>

<li>[http://www.da0734.com/forum.php?mod=viewthread&tid=406961&fromuid=75090 http://www.da0734.com/forum.php?mod=viewthread&tid=406961&fromuid=75090]</li>

</ul>