Tsarin gani, galibi ana amfani da shi don tsarin auna hoto da ganowa.Ana amfani da shi musamman don hoton zurfin teku a cikin hoto.Kayan gilashin na iya tsayayya da isasshen ruwa kuma baya lalacewa saboda kayan acrylic.Bugu da ƙari kuma, ƙaddamar da hasken gilashin, kumfa da ratsi na kayan kanta, da santsi da taurin saman kayan da kansa ya sa ƙarin bincike mai zurfi a cikin teku don zaɓar kullin kayan gilashi.Hakanan ana amfani dashi don gano yanayin yanayi, pyranometer.Fuskokin guda biyu kusan daidai da juna suna hana haske daga raguwa sosai yayin wucewa ta cikin sashin, ta yadda za a tabbatar da cewa makamashi bai ɓace ba kuma yana inganta daidaiton ma'aunin.
Domes na gani windows ne na hemispheric waɗanda ke ba da iyaka mai kariya yayin ba da damar fayyace fage tsakanin mahalli biyu.Yawanci ana yin su ne da filaye guda biyu.DG Optics yana kera domes na gani a cikin nau'ikan kayan aiki iri-iri, dacewa da bayyane, IR, ko hasken UV.Domes ɗinmu suna samuwa a cikin masu girma dabam daga 10 mm zuwa sama da 350 mm diamita, tare da girman al'ada zai yiwu akan buƙata.
BK7 ko fused silica ne mai kyau zabi ga na gani dome da za a yi amfani a cikin yanayi inda kawai bayyane haske dole ne a watsa;misali, akan firikwensin kyamara ko don aikace-aikacen meteorology.BK7 yana da ingantaccen ƙarfin sinadarai, kuma yana ba da ingantaccen watsawa don kewayon tsayin 300nm zuwa 2µm.
Don watsa haske ta kewayon UV, akwai silica da aka haɗa da darajar UV.Domes ɗin mu na silica masu haɗaka na iya jure babban matsa lamba kuma suna da kyau don aikace-aikacen ruwa.Wannan gilashin gani yana samar da sama da kashi 85 na watsawa don tsayin raƙuman ruwa har zuwa nm 185.