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ID:39503746
大小:82.00 KB
页数:25页
时间:2019-07-04
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1、TheBondingofOpticalElementsTechniquesandTroubleshootingbySummersOpticalADivisionofEMSAcquisition,Inc.POBox380-1560IndustryRoadHatfield,PA19440Tel#:215-412-8380-Fax#:215-412-8450E-Mail:SGKCCK@AOL.COMThiswritingisanattempttopreventmanyofthecommonerrorsandfailuresth
2、atoccurwhenanopticianortechnicianbeginsbondingopticswithsyntheticadhesives.Inmanyplacestheexperiencedopticaltechnicianwillbestrainedtoendurewhattohimseemonlycommonsense.Intheseinstancespatienceisrequested.Itisexperiencethathaspromptedthiswriting.Manyduplicationso
3、ferrorshaveoccurredovertheyearsbecausewhatwastakenforgrantedbysomewastotallynewandunexpectedbyothers.Thereisalsothechancethatthereareafewnewaspectstobelearnedbytheexperienced.Designersmayafterreading,beabletodesignoutsomeoftheproblemsmentionedbeforetheyreachthece
4、mentingdepartment. InformationRequirementsPriorto1946opticalelementswerebondedwithpurified,filteredCanadabalsam.Balsamwaseasytoapplyandinmostcasesanopticallycompatiblebondingmediumexceptthatithadlittlethermalorsolventresistance.Thewarandadvancesinaviationunderli
5、nedtheselimitationsandsoasyntheticresinadhesivewasdeveloped.Thisadhesiverequiredveryhightemperaturesandlongcuringtimes,soresearchwasconductedbyDRs.SourenSadjianandMarcoPetroniotodevelopaloworroomtemperature,catalystcuredadhesive.Theresearchwasdoneundertheauspices
6、oftheU.S.GovernmentattheFrankfordArsenalinPhiladelphia.Theresultofthatresearchwasatwocomponentpolyesterresinbasedcementthatmanyopticalcompaniesusetoday.Sincethen,privateadhesivemanufacturershavedevelopedamyriadofpolyester,epoxyandurethanebasedsingleandtwocomponen
7、tadhesivesforbondingopticalelements.Alloftheseadhesivesaremorecomplexthanbalsamanddemandathoroughknowledgeofwhatthefinishedopticswillexperienceinordertochoosethecorrectone.Beforechoosing,thetechnicianmusttakeintoaccountphysicalaspectsoftheelementsaswellastheoptic
8、alpropertiesandtheenvironmentalconditionsthefinishedopticswillbeexpectedtowithstand.Listedbelowissomebutperhapsnotalloftheinformationthatmustbeknowntocorrectly
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