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    <element id="OPTX_RedeemableWarrantsExercisableForSharesOfCommonStockAtExercisePriceOf11.50PerShareMember" name="RedeemableWarrantsExercisableForSharesOfCommonStockAtExercisePriceOf11.50PerShareMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ELRAssociatedLLCMember" name="ELRAssociatedLLCMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ProductsMember" name="ProductsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NonRecurringEngineeringMember" name="NonRecurringEngineeringMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_SpaceTechMember" name="SpaceTechMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_DefenseTechMember" name="DefenseTechMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_LifeSciencesMember" name="LifeSciencesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_AIDataCenterMember" name="AIDataCenterMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_OtherIncludingScientificInstrumentsMember" name="OtherIncludingScientificInstrumentsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_BuildingAndLeaseholdImprovementsMember" name="BuildingAndLeaseholdImprovementsMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ToolingMember" name="ToolingMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_MAndTBankTermNotePayableMember" name="MAndTBankTermNotePayableMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NotesPayableOneMember" name="NotesPayableOneMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_USSmallBusinessAdministrationTermNotePayableMember" name="USSmallBusinessAdministrationTermNotePayableMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NotesPayableTwoMember" name="NotesPayableTwoMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NotesPayableThreeMember" name="NotesPayableThreeMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ContingentEarnoutSharesMember" name="ContingentEarnoutSharesMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ThreeCustomersMember" name="ThreeCustomersMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_FederalIncomeTaxPayableCurrent" name="FederalIncomeTaxPayableCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_StockIssuedDuringPeriodValueWarrantsExercised" name="StockIssuedDuringPeriodValueWarrantsExercised" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_StockIssuedDuringPeriodSharesWarrantsExercised" name="StockIssuedDuringPeriodSharesWarrantsExercised" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ChangeInReserveForObsolescence" name="ChangeInReserveForObsolescence" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_RepaymentsOnFinanceLeaseObligations" name="RepaymentsOnFinanceLeaseObligations" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_Rule10B51ArrModifiedFlag" name="Rule10B51ArrModifiedFlag" nillable="true" xbrli:periodType="duration" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NonRule10B51ArrModifiedFlag" name="NonRule10B51ArrModifiedFlag" nillable="true" xbrli:periodType="duration" type="xbrli:booleanItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_DisclosureLeasesAbstract" name="DisclosureLeasesAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_DisclosureWarrantsAbstract" name="DisclosureWarrantsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_WarrantsTextBlock" name="WarrantsTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_NonRecurringServicesAndToolingPolicyTextBlock" name="NonRecurringServicesAndToolingPolicyTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ScheduleOfCashFlowInformationRelatedLeaseTableTextBlock" name="ScheduleOfCashFlowInformationRelatedLeaseTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ScheduleOfWeightedAverageRemainingLeaseTermTableTextBlock" name="ScheduleOfWeightedAverageRemainingLeaseTermTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ScheduleOfDescriptionOfOrganizationAndBusinessOperationsAbstract" name="ScheduleOfDescriptionOfOrganizationAndBusinessOperationsAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_ScheduleOfDescriptionOfOrganizationAndBusinessOperationsTable" name="ScheduleOfDescriptionOfOrganizationAndBusinessOperationsTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="OPTX_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour" name="LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_LesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" name="LesseeOperatingLeaseLiabilityPaymentsDueAfterYearThree" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_WarrantExercised" name="WarrantExercised" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_OtherIndustrialEnergyMember" name="OtherIndustrialEnergyMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_PreviousCommunicationMember" name="PreviousCommunicationMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_PreviousConsumerMember" name="PreviousConsumerMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_PreviousDefenseMember" name="PreviousDefenseMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_PreviousMedicalMember" name="PreviousMedicalMember" nillable="true" xbrli:periodType="duration" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" />
    <element id="OPTX_RemainingPerformanceObligationDisclosureTextBlock" name="RemainingPerformanceObligationDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
</schema>
