Umahluko phakathiiglasi ebonakalayokwaye ezinye iiglasi kukuba njengenxalenye yenkqubo ye-optical, kufuneka ihlangabezane neemfuno ze-optical imaging.
Itekhnoloji yayo yokucubungula ibanda isebenzisa unyango lobushushu bomphunga weekhemikhali kunye neqhekeza elinye leglasi ye-soda-lime silica ukutshintsha isakhiwo sayo sokuqala se-molecular ngaphandle kokuchaphazela umbala wokuqala kunye nokuhanjiswa kokukhanya kweglasi, okwenza ifikelele kumgangatho wokuqina kakhulu, kwaye ihlangabezane neemfuno zokukhusela umlilo phantsi kwefuthe lobushushu obuphezulu Iglasi eqinileyo kakhulu engatshiyo kunye nendlela yayo yokuvelisa kunye nezixhobo ezikhethekileyo. Yenziwe ngezi zinto zilandelayo zomlinganiselo wobunzima: umphunga wetyuwa ye-potassium (72% ～ 83%), i-argon (7% ～ 10%), i-gaseous copper chloride (8% ～ 12%), i-nitrogen (2 % ～ 6%).
Umgangatho weglasi ye-optical unezi mfuno zilandelayo:
1. Ii-constants ezithile ze-optical kunye nokuhambelana kwee-constants ze-optical zebhetshi efanayo yeglasi
Uhlobo ngalunye lweglasi yokukhanya lunexabiso elimiselweyo le-refractive index ye-wavelengths ezahlukeneyo zokukhanya, elisebenza njengesiseko sabayili be-optical ukuyila iinkqubo ze-optical. Ii-optical constants zazo zonke iiglasi zokukhanya eziveliswa kumzi-mveliso kufuneka zibe ngaphakathi koluhlu oluthile oluvumelekileyo lwala maxabiso, kungenjalo umgangatho wokwenyani womfanekiso awuyi kuhambelana nesiphumo esilindelekileyo ngexesha loyilo kwaye umgangatho wesixhobo sokukhanya uya kuchaphazeleka.
2. Ukucaca Okuphezulu
Ukukhanya komfanekiso wenkqubo yokukhanya kuhambelana nokucaca kweglasi. Ukucaca kweglasi yokukhanya ekukhanyeni kobude obuthile be-wavelength kubonakaliswa yi-Kλ. Emva kokuba ukukhanya kudlule kuthotho lweeprism kunye neelensi, inxalenye yamandla ayo ilahleka kukubonakaliswa kwe-interface yamacandelo okukhanya kwaye enye inxalenye ifunxwa yi-medium (iglasi) ngokwayo. Eyokuqala iyanda ngokunyuka kwe-refractive index yeglasi. Kwiglasi ene-refractive index ephezulu, eli xabiso likhulu kakhulu. Umzekelo, ukulahleka kokukhanya kokukhanya komphezulu omnye weglasi ye-counterweight flint malunga ne-6%. Ke ngoko, kwinkqubo yokukhanya equlethe iilensi ezininzi ezincinci, indlela ephambili yokwandisa ukuhanjiswa kukunciphisa ukulahleka kokukhanya komphezulu welensi, njengokugquma umphezulu nge-anti-reflection coating. Kwiindawo ezinkulu zokukhanya ezifana nelensi ejolise kwi-telescope yeenkwenkwezi, ukuhanjiswa kwenkqubo yokukhanya kugqitywa kakhulu yi-light absorption coefficient yeglasi ngokwayo ngenxa yobukhulu bayo obukhulu. Ngokuphucula ubunyulu bezinto ezikrwada zeglasi nokuthintela naluphi na ukungcola kombala ekuxubeni kuyo yonke inkqubo ukusuka ekuxutyweni ukuya ekunyibilikiseni, i-coefficient yokufunxwa kokukhanya kweglasi ngokubanzi inokuba ngaphantsi kwe-0.01 (oko kukuthi, ukuhanjiswa kokukhanya kweglasi enobukhulu be-1 cm kungaphezulu kwe-99%).
Iglasi kaSaidangumthengisi weglasi odumileyo kwihlabathi liphela okumgangatho ophezulu, oxabisa kakhulu kwaye ufika ngexesha elifanelekileyo. Uneglasi elungiselelwe ngokweemfuno kwiindawo ezahlukeneyo kwaye igxile kwiglasi yephaneli yokuchukumisa, iphaneli yeglasi yokutshintsha, iglasi ye-AG/AR/AF/ITO/FTO/Low-e yesikrini sokuchukumisa sangaphakathi nangaphandle.
Ixesha lokuthumela: Okthobha-09-2020