<?xml version="1.0" encoding="us-ascii"?><InstanceReport xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"><Version>2.4.0.8</Version><ReportLongName>00000038 - Disclosure - Derivative Financial Instruments (Tables)</ReportLongName><DisplayLabelColumn>true</DisplayLabelColumn><ShowElementNames>false</ShowElementNames><RoundingOption /><HasEmbeddedReports>false</HasEmbeddedReports><Columns><Column FlagID="0"><Id>1</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><CurrencyCode /><FootnoteIndexer /><hasSegments>false</hasSegments><hasScenarios>false</hasScenarios><MCU><KeyName /><CurrencySymbol /><contextRef><ContextID>From2012-07-01to2013-06-30</ContextID><EntitySchema>http://www.sec.gov/CIK</EntitySchema><EntityValue>0000889971</EntityValue><PeriodDisplayName /><PeriodType>duration</PeriodType><PeriodStartDate>2012-07-01T00:00:00</PeriodStartDate><PeriodEndDate>2013-06-30T00:00:00</PeriodEndDate><Segments /><Scenarios /></contextRef><UPS /><CurrencyCode /><OriginalCurrencyCode /></MCU><CurrencySymbol /><Labels><Label Key="CalendarSupplement" Id="0" Label="12 Months Ended" /><Label Key="Calendar" Id="1" Label="Jun. 30, 2013" /></Labels></Column></Columns><Rows><Row FlagID="0"><Id>1</Id><IsAbstractGroupTitle>true</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>1</Level><ElementName>LPTH_DerivativeFinancialInstrumentsTablesAbstract</ElementName><ElementPrefix>LPTH_</ElementPrefix><IsBaseElement>false</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText /><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>xbrli:stringItemType</ElementDataType><SimpleDataType>string</SimpleDataType><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Derivative Financial Instruments Tables</Label></Row><Row FlagID="0"><Id>2</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_FairValueInputsInstrumentsClassifiedInShareholdersEquityQuantitativeInformationTableTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="From2012-07-01to2013-06-30" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;div style="text-align: center; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"&gt;&lt;div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: justify"&gt;&lt;div&gt;&lt;div style="text-indent: 36pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: justify"&gt;&lt;font style="display: inline; font: 10pt Times New Roman"&gt;The change in fair value of the June 2012 Warrants is recorded in the statement of operations and comprehensive income and is estimated using the Lattice option-pricing model using the following assumptions:&lt;/font&gt;&lt;/div&gt;

&lt;div style="text-align: left; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"&gt;&lt;/div&gt;



&lt;div style="text-indent: 0pt; display: block"&gt;&lt;br /&gt;
&lt;/div&gt;

&lt;div style="text-align: left"&gt;
&lt;table cellpadding="0" cellspacing="0" style="width: 80%; font: 10pt times new roman; font-size: 10pt; font-family: times new roman"&gt;
&lt;tr&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;Inputs into Lattice model for warrants:&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: right; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td colspan="2" style="vertical-align: bottom; width: 21%; text-align: center"&gt;
&lt;div style="text-align: center; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;6/30/2013&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Equivalent volatility&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: right; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;81.03&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;%&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: white"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Equivalent interest rate&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: right; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;0.44&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;%&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Estimated stock price&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;1.0866&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: white"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Floor&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;1.1500&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Greater of estimated stock price or floor&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;1.1500&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: white"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Probability price &amp;#60; Strike&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: right; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;75.95&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;%&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Fair value of put&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;0.8457&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: white"&gt;
&lt;td style="text-align: left; vertical-align: bottom; width: 75%"&gt;
&lt;div style="text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Probability of Fundamental Transaction occuring&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="text-align: right; vertical-align: bottom; width: 3%"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;5&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;%&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>Tabular disclosure of quantitative information about the inputs used in the fair value measurement of financial instruments classified in shareholders' equity. This disclosure may include, but is not limited to, the fair value of the financial instrument classified in shareholders' equity, valuation technique used to measure fair value, the inputs used to measure fair value, the ranges of the inputs, and the weighted averages of the inputs.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 820

 -SubTopic 10

 -Section 50

 -Paragraph 2

 -Subparagraph (bbb)

 -URI http://asc.fasb.org/extlink&amp;oid=25499696&amp;loc=d3e19207-110258



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Schedule of fair value inputs of derivative financial instruments</Label></Row><Row FlagID="0"><Id>3</Id><IsAbstractGroupTitle>false</IsAbstractGroupTitle><LabelSeparator>

</LabelSeparator><Level>2</Level><ElementName>us-gaap_FairValueLiabilitiesMeasuredOnRecurringBasisUnobservableInputReconciliationTextBlock</ElementName><ElementPrefix>us-gaap_</ElementPrefix><IsBaseElement>true</IsBaseElement><BalanceType>na</BalanceType><PeriodType>duration</PeriodType><IsReportTitle>false</IsReportTitle><IsSegmentTitle>false</IsSegmentTitle><IsCalendarTitle>false</IsCalendarTitle><IsEquityPrevioslyReportedAsRow>false</IsEquityPrevioslyReportedAsRow><IsEquityAdjustmentRow>false</IsEquityAdjustmentRow><IsBeginningBalance>false</IsBeginningBalance><IsEndingBalance>false</IsEndingBalance><IsReverseSign>false</IsReverseSign><FootnoteIndexer /><Cells><Cell FlagID="0" ContextID="From2012-07-01to2013-06-30" UnitID=""><Id>1</Id><IsNumeric>false</IsNumeric><IsRatio>false</IsRatio><DisplayZeroAsNone>false</DisplayZeroAsNone><NumericAmount>0</NumericAmount><RoundedNumericAmount>0</RoundedNumericAmount><NonNumbericText>&lt;div style="text-align: center; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"&gt;&lt;div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: justify"&gt;&lt;div&gt;&lt;div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left"&gt;&lt;font style="display: inline; font: 10pt Times New Roman"&gt;The following table summarizes the activity of Level 3 inputs measured on a recurring basis for the year ended June 30, 2013:&lt;/font&gt;&lt;/div&gt;

&lt;div style="text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt; text-align: left"&gt;&amp;#160;&lt;/div&gt;

&lt;div style="text-align: left"&gt;
&lt;table cellpadding="0" cellspacing="0" style="width: 80%; font: 10pt times new roman; font-size: 10pt; font-family: times new roman"&gt;
&lt;tr&gt;
&lt;td style="vertical-align: bottom; width: 75%; padding-bottom: 2px"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160; &lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 3%; text-align: left; padding-bottom: 2px; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td colspan="2" style="vertical-align: bottom; width: 21%; border-bottom: black 2px solid; text-align: center; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;
&lt;div style="text-align: center; text-indent: 0pt; display: block; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;&lt;font style="display: inline"&gt;Warrant Liability&lt;/font&gt;&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-bottom: #000000 2px solid; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: bold 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="vertical-align: bottom; width: 75%; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;
&lt;div style="text-align: left; text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Fair value, June 30, 2012&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 3%; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; text-align: right; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;1,087,296&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: white"&gt;
&lt;td style="vertical-align: bottom; width: 75%; text-align: left; padding-bottom: 2px; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;
&lt;div style="text-align: left; text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Change in fair value of warrant liability&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 3%; text-align: left; padding-bottom: 2px; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; border-bottom: #000000 2px solid; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; border-bottom: #000000 2px solid; text-align: right; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;14,725&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-bottom: #000000 2px solid; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;/tr&gt;&lt;tr style="background-color: #cceeff"&gt;
&lt;td style="vertical-align: bottom; width: 75%; text-align: left; padding-bottom: 4px; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;
&lt;div style="text-align: left; text-indent: -9pt; display: block; margin-left: 9pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;Fair value, June 30, 2013&lt;/font&gt;&lt;/div&gt;
&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 3%; text-align: left; padding-bottom: 4px; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 1%; border-bottom: #000000 4px double; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;$&lt;/font&gt;&lt;/td&gt;
&lt;td style="vertical-align: bottom; width: 20%; border-bottom: #000000 4px double; text-align: right; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;1,102,021&lt;/font&gt;&lt;/td&gt;
&lt;td nowrap="nowrap" style="vertical-align: bottom; width: 1%; border-bottom: #000000 4px double; text-align: left; text-indent: 0pt; margin-left: 0pt; margin-right: 0pt"&gt;&lt;font style="display: inline; font: 10pt times new roman"&gt;&amp;#160;&lt;/font&gt;&lt;/td&gt;&lt;/tr&gt;&lt;/table&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;&lt;/div&gt;</NonNumbericText><FootnoteIndexer /><CurrencyCode /><CurrencySymbol /><IsIndependantCurrency>false</IsIndependantCurrency><ShowCurrencySymbol>false</ShowCurrencySymbol><DisplayDateInUSFormat>false</DisplayDateInUSFormat></Cell></Cells><ElementDataType>nonnum:textBlockItemType</ElementDataType><SimpleDataType>na</SimpleDataType><ElementDefenition>Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.</ElementDefenition><ElementReferences>Reference 1: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 820

 -SubTopic 10

 -Section 50

 -Paragraph 3

 -URI http://asc.fasb.org/extlink&amp;oid=25499696&amp;loc=d3e19279-110258



Reference 2: http://www.xbrl.org/2003/role/presentationRef

 -Publisher FASB

 -Name Accounting Standards Codification

 -Topic 820

 -SubTopic 10

 -Section 50

 -Paragraph 2

 -Subparagraph (c)

 -URI http://asc.fasb.org/extlink&amp;oid=25499696&amp;loc=d3e19207-110258



</ElementReferences><IsTotalLabel>false</IsTotalLabel><UnitID>0</UnitID><Label>Schedule of Level 3 inputs measured on a recurring basis</Label></Row></Rows><Footnotes /><IsEquityReport>false</IsEquityReport><ReportName>Derivative Financial Instruments (Tables)</ReportName><MonetaryRoundingLevel>UnKnown</MonetaryRoundingLevel><SharesRoundingLevel>UnKnown</SharesRoundingLevel><PerShareRoundingLevel>UnKnown</PerShareRoundingLevel><ExchangeRateRoundingLevel>UnKnown</ExchangeRateRoundingLevel><HasCustomUnits>true</HasCustomUnits><IsEmbedReport>false</IsEmbedReport><IsMultiCurrency>false</IsMultiCurrency><ReportType>Sheet</ReportType><RoleURI>http://lightpath.com/role/DerivativeFinancialInstrumentsTables</RoleURI><NumberOfCols>1</NumberOfCols><NumberOfRows>3</NumberOfRows></InstanceReport>
