Imikhiqizo

I-Gluing [isigaba II sokugxilwa kwelensi enamathiselwe]

Enqubweni yokunamathisela i-lens, kuyadingeka ukuqinisekisa ukuthi izimbazo ezibonakalayo zamalensi aqondile noma angalungile zihambisana phakathi kwebanga elivumelekile, ngaphandle kwalokho i-axis yokubona yelensi enamathiselwe izophambuka ephutheni elivunyelwe lesikhungo, ngaleyo ndlela iwonakele ikhwalithi yesithombe. ilensi enamathiselwe.Ukwenza ama-eksisi okubonayo amalensi aphozithivu nenegethivu aqondane ne-axis eyireferensi yelensi enosimende ukwenza umugqa ojwayelekile ku-vertex emaphakathi yezindawo ezibonakalayo zelensi enosimende uqondane ne-axis yesithenjwa.
Kunezindlela ezihlukene zokubeka indawo phakathi ngenxa yezimiso ezihlukene zokubeka indawo zamalensi asimende.
1, Ukugxila kwesithombe sokudlulisa
Uma unamathisela ilensi, ukugxilisa maphakathi ngokuchezuka kwesithombe esigxile ku-axis yereferensi yelensi enamathiselwe ukugxila kwesithombe sokudlulisa.Le nsimbi ibizwa ngokuthi ithuluzi le-centering image yokudlulisela, futhi isistimu yayo yokubona iboniswa ku-Fig. 14-1 (a).I-axis eyireferensi yelensi enamathiselwe umugqa oxhuma isikhungo sesiyingi se-intersection g ye-lens enqenqemeni lengaphezulu kanye nendawo yokubona kanye nesikhungo sokugoba esingu-C1 sendawo yokubona.Faka ilensi enegethivu ukuze igxiliswe phakathi futhi inamathiselwe kusokhethi sensimbi, futhi umugqa omaphakathi wesokhethi uqondane ngokunembile ne-axis ebonakalayo yeshubhu elihlanganayo.

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Kusukela kumgomo wokumisa phakathi kwesithombe sokudlulisa, kungabonakala ukuthi ukuchezuka kwesithombe esigxilile akubonisi ngokuphelele ukuchezuka kwesikhungo sokugoba sobuso obubonakalayo ngakunye ukusuka ku-eksisi eyireferensi yelensi enamathiselwe.Ukuchezuka kwesithombe sokugxilile kuwumphumela obanzi wokuchezuka kwezikhungo ezintathu zokugoba zelensi enosimende ukusuka ku-eksisi eyireferensi yelensi enosimende.Uma ilensi kasimende izungeza i-eksisi yesithenjwa, umnikelo wezikhungo ezintathu zokugoba ekugxumeni kwesithombe esigxilisiwe ungase ukhansele, okusho ukuthi, isithombe sokugxilwa kuso asinyakaziswa, kodwa asikwazi ukuqinisekisa ukuthi izikhungo ezintathu zokugoba zivuliwe. i-axis yereferensi yelensi enosimende.Umdwebo 14-1 (b) ubonisa ukuthi i-parallel beam ekhishwa ku-collimator ifanekiswa ilensi enegethivu bese ifanekiswa ilensi ephozithivu kokuthi f '.Uma senziwa isithombe ku-eksisi eyireferensi, isithombe esigxilile ngeke sinyakaze lapho ilensi kasimende imaphakathi, kodwa ama-eksisi okubonayo amalensi aphozithivu nenegethivu awahambelani ne-axis eyireferensi yelensi kasimende, futhi “i-pseudo centering” iyenzeka. ngalesi sikhathi;Ngokuphambene nalokho, i-coaxial glued lens ingase ihlolwe ukuze ibe ne-eccentricity.
Ithuluzi le-centraling image likala isithombe sokudlulisela sokugxila kwaso kumzila wokukhanya ohambisanayo.Nakuba kungenzeka ukuthi "i-pseudo centering", ingakala ukugqama okuphelele kwezingxenye ezinamathiselwe.Indlela yokugxilisa ingqondo yesithombe sokudlulisa ilula futhi iyasebenza, ifanele ukukhiqizwa ngobuningi bamalensi anosimende anembe okumaphakathi.

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2. Ukumisa phakathi kwesithombe esiyindilinga
Lapho kulungiswa ukuchezuka kwesikhungo sokugoba sobuso be-optical surface lens yelensi kasimende kusukela ku-axis yesithenjwa yelensi enosimende, okungukuthi ukulungisa ukuchezuka kwesikhungo esiyindilinga, ithuluzi lokubonisa indawo eliyindingilizi elikabili lingasetshenziswa, njengoba kuboniswe ku-Fig. 14 -2.Insimbi inezindlela zokukhanya zokubuka ezingenhla neziphansi eziboniswa ilensi emaphakathi.Okokuqala, sebenzisa indlela yokukhanya ephansi ukuze ulungise i-eksisi yokubona yelensi ebekwe kusokhethi ngesithombe esiyindilinga ukuze ukwenze iqondane ne-axis yokuzungezisa yensimbi emaphakathi njenge-axis eyireferensi yelensi enamathiselwe.Ngemva kokulungisa ilensi eyinegethivu kusokhethi, sebenzisa indlela yokukhanya engenhla ukuze ulungise i-eksisi yokubona yelensi ephozithivu ngendlela yesithombe esiyindilinga ukuze ihambisane nereferensi ye-axis yelensi enamathiselwe, Finyelela inhloso yokubeka maphakathi nendawo.

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Ukubeka maphakathi isithombe esiyindilinga ukuthi isikhungo sokugoba sendawo ngayinye yokubona yelensi enamathiselwe iku-eksisi eyireferensi efanayo, okuqeda isenzeko sokumaphakathi okungamanga.Kodwa-ke, i-Centrometer ekhanyayo ingabona kuphela isithombe esiyindilinga sendawo ngayinye, kodwa hhayi ukugqama kwawo wonke umhlangano wokunamathisela.Ukusebenza okumaphakathi kwesithombe esiyindilinga sokubonisa ilula futhi kusebenza kahle, okufanele ukubekwa maphakathi kwelensi kasimende ekukhiqizeni ngobuningi.Ukuze kuzuzwe ukunemba okuthile kokubeka maphakathi nendawo, izinhlobo ezingenhla zamathuluzi agxiliswe amalensi eglue kufanele zisebenzise amalensi enhloso ashintshekayo noma amasistimu wokusondeza ukuze kuguqulwe ukukhuliswa kwesistimu yokubuka.I-3, ithuluzi le-laser interference centering liyithuluzi lokubeka indawo elinembe kakhulu.Isebenzisa isimiso sokuphazanyiswa kwe-laser sokugxilisa i-lens optical, ithatha umphetho wokuphazamiseka njengethagethi yokubuka, futhi ithatha ubude beza beza be-laser njengeyunithi yokulinganisa, futhi ikala ngokuqondile umehluko wendlela yokubona yendawo ephakathi nendawo yelensi, ukuze inqume i-engeli yokuchezuka. kanye nokuchezuka kokuqondisa phakathi kwe-eksisi yokubona yelensi kanye ne-axis eyireferensi.Isebenzisa indawo yelensi enephutha elimaphakathi ukuze iguqule i-symmetry ejikelezayo, ukuze ukukhanya kwesigameko kulahlekelwe ukuhambisana ngemva kokuboniswa, okuholela ekushintsheni komehluko wendlela yokubona.Ngokulawula ukuhluka kwemiphetho yokuphazamiseka, ilensi enamathiselwe ethe njo ingahle ibekwe phakathi nendawo ngokunembile, futhi ukunemba okumaphakathi okujwayelekile kungafinyelela ku-oda elingu-1 “~5″.Uma ubude begagasi bokukhanya kwesigameko buphakathi, indawo ehloliwe yelensi ingu-D, futhi ukuguqulwa komphetho wokuphazamiseka ngu-n, ukuthambekela okungaphezulu kwelensi kungu-D.
x = N(A/D) × 105 (14 -1)
4. Ukumisa phakathi nendawo okuzenzakalelayo
Ngemva kokubeka phakathi nendawo kanye nokuhlela, i-axis ye-optical kanye ne-geometric axis yelensi kuhambisana ngokuyisisekelo.Ngalesi sisekelo, i-convex surface noma indiza ye-lens engalungile ekuxhumeni ibekwe ebhentshini lokusebenza, futhi ilensi enhle ibekwe kwilensi engalungile.Kuye ngesisindo sezingxenye, isikhungo se-gravity yelensi siqondana ngokuzenzakalela ne-axis yayo yokubona.
Iplathifomu yokusebenza lapho ilensi ibekwe khona izolinganiswa nge-level gauge, futhi ukunemba kwendawo kuyoba n <3, ΔN<0.5.Le ndlela yokubeka imaphakathi ifanele amalensi anosimende ane-eccentricity C > 0.05mm futhi ilungele ukukhiqizwa ngobuningi. .

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Isikhathi sokuthumela: Aug-08-2022