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	<link:roleType roleURI="http://lightpath.com/role/LoanPayableDetailsNarrative" id="LoanPayableDetailsNarrative">
	  <link:definition>00000055 - Disclosure - Loan Payable (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://lightpath.com/role/LoanPayableDetails" id="LoanPayableDetails">
	  <link:definition>00000056 - Disclosure - Loan Payable (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://lightpath.com/role/PublicOfferingOfClassCommonStockDetailsNarrative" id="PublicOfferingOfClassCommonStockDetailsNarrative">
	  <link:definition>00000057 - Disclosure - Public Offering of Class A common stock (Details Narrative)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://lightpath.com/role/GoodwillAndIntangibleAssetsDetails" id="GoodwillAndIntangibleAssetsDetails">
	  <link:definition>00000058 - Disclosure - Goodwill and Intangible Assets (Details)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://lightpath.com/role/GoodwillAndIntangibleAssetsDetails1" id="GoodwillAndIntangibleAssetsDetails1">
	  <link:definition>00000059 - Disclosure - Goodwill and Intangible Assets (Details 1)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:roleType roleURI="http://lightpath.com/role/GoodwillAndIntangibleAssetsDetails2" id="GoodwillAndIntangibleAssetsDetails2">
	  <link:definition>00000060 - Disclosure - Goodwill and Intangible Assets (Details 2)</link:definition>
	  <link:usedOn>link:presentationLink</link:usedOn>
	  <link:usedOn>link:calculationLink</link:usedOn>
	  <link:usedOn>link:definitionLink</link:usedOn>
	</link:roleType>
	<link:linkbaseRef xlink:type="simple" xlink:href="lpth-20161231_pre.xml" xlink:role="http://www.xbrl.org/2003/role/presentationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Presentation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="lpth-20161231_lab.xml" xlink:role="http://www.xbrl.org/2003/role/labelLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Label Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="lpth-20161231_cal.xml" xlink:role="http://www.xbrl.org/2003/role/calculationLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Calculation Links" />
	<link:linkbaseRef xlink:type="simple" xlink:href="lpth-20161231_def.xml" xlink:role="http://www.xbrl.org/2003/role/definitionLinkbaseRef" xlink:arcrole="http://www.w3.org/1999/xlink/properties/linkbase" xlink:title="Definition Links" />
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    </annotation>
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    <import namespace="http://www.xbrl.org/2003/linkbase" schemaLocation="http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" />
    <import namespace="http://xbrl.org/2005/xbrldt" schemaLocation="http://www.xbrl.org/2005/xbrldt-2005.xsd" />
    <import namespace="http://xbrl.sec.gov/dei/2014-01-31" schemaLocation="http://xbrl.sec.gov/dei/2014/dei-2014-01-31.xsd" />
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    <import namespace="http://www.xbrl.org/dtr/type/numeric" schemaLocation="http://www.xbrl.org/dtr/type/numeric-2009-12-16.xsd" />
    <import namespace="http://xbrl.sec.gov/country/2016-01-31" schemaLocation="http://xbrl.sec.gov/country/2016/country-2016-01-31.xsd" />
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    <element id="lpth_SharebasedCompensationArrangementBySharebasedPaymentAwardSharesNonvestedNumberOfShares" name="SharebasedCompensationArrangementBySharebasedPaymentAwardSharesNonvestedNumberOfShares" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardNonvestedWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="instant" type="num:perShareItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_ESOPPercentageMarketValue" name="ESOPPercentageMarketValue" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_YearlyLimitOnPurchaseOfCommonStockValue" name="YearlyLimitOnPurchaseOfCommonStockValue" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_YearlyLimitOnPurchaseOfCommonStockShares" name="YearlyLimitOnPurchaseOfCommonStockShares" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_SixMonthLimitOnPurchaseOfCommonStockShares" name="SixMonthLimitOnPurchaseOfCommonStockShares" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_NumberOfCapitalLeases" name="NumberOfCapitalLeases" nillable="true" xbrli:periodType="instant" type="xbrli:integerItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ValueAddedTaxRateMaximum" name="ValueAddedTaxRateMaximum" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_CashAndCashEquivalentsHeldByForeignSubsidiaries" name="CashAndCashEquivalentsHeldByForeignSubsidiaries" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_PercentageOfRegisteredCapital" name="PercentageOfRegisteredCapital" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_RetainedEarningsNeededForRepatriation" name="RetainedEarningsNeededForRepatriation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_PercentOfInvoiceWrittenOff" name="PercentOfInvoiceWrittenOff" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_PeriodWarrantsExerciseable" name="PeriodWarrantsExerciseable" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedCancelledForfeitedNumberOfShares" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedCancelledForfeitedNumberOfShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedCancelledForfeitedWeightedAverageGrantDateFairValue" name="SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedCancelledForfeitedWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ProbabilityPriceStrike" name="ProbabilityPriceStrike" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_IncrementalCommonSharesAttributableToCallOptions" name="IncrementalCommonSharesAttributableToCallOptions" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_DiscountRateOnEsopShares" name="DiscountRateOnEsopShares" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_DeferredRent" name="DeferredRent" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_DerecognitionOfLiabilityAssociatedWithStockOptionGrants" name="DerecognitionOfLiabilityAssociatedWithStockOptionGrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ReclassificationOfWarrantLiabilityUponExercise" name="ReclassificationOfWarrantLiabilityUponExercise" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageRemainingContractLifeGranted" name="WeightedAverageRemainingContractLifeGranted" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageRemainingContractLifeCancelledOrForfeited" name="WeightedAverageRemainingContractLifeCancelledOrForfeited" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageRemainingContractLifeUnexercisableBalanceEnding1" name="WeightedAverageRemainingContractLifeUnexercisableBalanceEnding1" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageRemainingContractLifeGrantsInPeriodRestrictedStockUnits" name="WeightedAverageRemainingContractLifeGrantsInPeriodRestrictedStockUnits" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageFairValueOfShareAwardsGrantedInPeriodAllAwards" name="WeightedAverageFairValueOfShareAwardsGrantedInPeriodAllAwards" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesGrantsInPeriodGross" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardSharesGrantsInPeriodGross" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodGross" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodGross" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardsGrantsInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardsGrantsInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodWeightedAverageGrantDateFairValue" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardVestedInPeriodWeightedAverageGrantDateFairValue" nillable="true" xbrli:periodType="duration" type="num:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherPayables" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_InventoryReserveOneYear" name="InventoryReserveOneYear" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_InventoryReserveSixMonths" name="InventoryReserveSixMonths" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ValueAddedTaxPolicyTextBlock" name="ValueAddedTaxPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ScheduleOfRevenueIncludedInCompanysConsolidatedIncomeStatementFromAcquisitionTableTextBlock" name="ScheduleOfRevenueIncludedInCompanysConsolidatedIncomeStatementFromAcquisitionTableTextBlock" nillable="true" xbrli:periodType="duration" type="nonnum:textBlockItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_CashPurchasePrice" name="CashPurchasePrice" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_FairValueOfSellersNote" name="FairValueOfSellersNote" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_FairValueOfSellersNoteAdjustment" name="FairValueOfSellersNoteAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_BorrowingCapacityEligibleAccountsPercentage" name="BorrowingCapacityEligibleAccountsPercentage" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_LateFeePercent" name="LateFeePercent" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_DefaultInterestRate" name="DefaultInterestRate" nillable="true" xbrli:periodType="instant" type="num:percentItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_IncreaseInBasisOfAcquiredBasisOfInventory" name="IncreaseInBasisOfAcquiredBasisOfInventory" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_PublicOfferingOfClassCommonStockAbstract" name="PublicOfferingOfClassCommonStockAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_RestrictedStockUnitsAbstract" name="RestrictedStockUnitsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
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    <element id="lpth_TotalSharesAbstract" name="TotalSharesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValueAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsForfeituresWeightedAverageGrantDateFairValueAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WarrantExercisesAxis" name="WarrantExercisesAxis" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" />
    <element id="lpth_WarrantExercisesDomain" name="WarrantExercisesDomain" abstract="true" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_Level3InputsActivityAbstract" name="Level3InputsActivityAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_WeightedAverageCommonSharesOutstandingAbstract" name="WeightedAverageCommonSharesOutstandingAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_EarningsLossPerCommonShareAbstract" name="EarningsLossPerCommonShareAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_AnnualRentalIncreasePercent" name="AnnualRentalIncreasePercent" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_IncreaseInSquareFootage" name="IncreaseInSquareFootage" nillable="true" xbrli:periodType="duration" type="num:percentItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_CapitalLeaseFiscalYearEndingJuneAbstract" name="CapitalLeaseFiscalYearEndingJuneAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_FiscalYearEndingJune30Abstract" name="FiscalYearEndingJune30Abstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_PublicOfferingOfClassCommonStockDetailsNarrativeAbstract" name="PublicOfferingOfClassCommonStockDetailsNarrativeAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="lpth_UnderwritersAxis" name="UnderwritersAxis" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:dimensionItem" />
    <element id="lpth_UnderwritersDomain" name="UnderwritersDomain" abstract="true" nillable="true" xbrli:periodType="duration" type="nonnum:domainItemType" substitutionGroup="xbrli:item" />
</schema>
