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	<title>Reflectance - Revision history</title>
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	<updated>2026-05-03T13:37:31Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=10087&amp;oldid=prev</id>
		<title>Minsuids at 15:39, 3 February 2024</title>
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		<updated>2024-02-03T15:39:52Z</updated>

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				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 15:39, 3 February 2024&lt;/td&gt;
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		<author><name>Minsuids</name></author>
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	<entry>
		<id>https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=6569&amp;oldid=prev</id>
		<title>Oferiks: 1 revision</title>
		<link rel="alternate" type="text/html" href="https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=6569&amp;oldid=prev"/>
		<updated>2009-03-01T10:00:53Z</updated>

		<summary type="html">&lt;p&gt;1 revision&lt;/p&gt;
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		<author><name>Oferiks</name></author>
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	<entry>
		<id>https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=6568&amp;oldid=prev</id>
		<title>Oferiks: 1 revision</title>
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		<updated>2009-02-25T10:00:06Z</updated>

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		<author><name>Oferiks</name></author>
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		<id>https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=1470&amp;oldid=prev</id>
		<title>Oferiks: 1 revision</title>
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		<updated>2009-02-25T00:00:06Z</updated>

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		<author><name>Oferiks</name></author>
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	<entry>
		<id>https://www.iala.int/wiki/dictionary/index.php?title=Reflectance&amp;diff=1469&amp;oldid=prev</id>
		<title>Oferiks at 12:00, 15 February 2009</title>
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		<updated>2009-02-15T12:00:00Z</updated>

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&amp;#039;&amp;#039;&amp;#039;2-1-150&lt;br /&gt;
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Alternative term: Reflection Factor&lt;br /&gt;
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The ratio of the reflected luminous flux (Fr) to the incident flux (Fo).&lt;br /&gt;
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Symbol: ?&lt;br /&gt;
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Note: Where mixed reflection occurs, the (total) reflectance may be divided into two parts, Specular Reflectance (?r) and Diffuse Reflectance (?d), corresponding respectively to the two modes of reflection referred to in 2-1-135 and 2-1-140.&lt;br /&gt;
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? = ?r + ?d&lt;br /&gt;
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Reference: C.I.E. (modified)&lt;br /&gt;
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{{IALAFooter}}&lt;br /&gt;
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[[Category:2.1 Optics and Vision]]&lt;br /&gt;
[[Category:Alphabetical Index]]&lt;br /&gt;
[[Category:IALA Dictionary 1970-89 Edition]]&lt;/div&gt;</summary>
		<author><name>Oferiks</name></author>
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