Lub koob yees duab matrix

Lavxias teb sab tau txais kev pab yog nce nrov cov koob yees duab thiab yees duab. Txhua txhua hnub, lub ntiaj teb manufacturers yuav tsim tshiab ua qauv, muab ntau thiab ntau dua rau cov duab. Niaj hnub no, cov nruab nrab tus neeg yuav ua tau yooj yim los mus txiav txim lub xaiv ntawm cov koob yees duab. Tej zaum tej Salespeople nyob rau hauv lub khw thiab nws yog tsis muaj peev xwm muab ib tug ntshiab council ntawm nws xaiv. Uas yog vim li cas ib tus lover ntawm photography, thiab txawm ntau li ntawd ib tug kws yuav tsum paub ib co ntawm cov yam ntxwv thiab cov yam ntxwv ntawm cov niaj hnub pab kiag li lawm.

Lub matrix lub koob yees duab yog ib tug ntawm lub ntsiab tseem ceeb nyob rau hauv xws li. Nws yog ib tug sensor ntaus ntawv uas muaj rhiab heev, uas muaj peev xwm kom lub hloov dua siab tshiab ntawm tus kho qhov muag duab npaj mus rau nws nyob rau hauv lens, rau ib cov teeb liab. lub koob yees duab los yog matrix koob yees duab muaj ib tug ncaj qha feem nyob rau laum thiab qhov zoo tshaj ntawm cov dluab. Cia wb mus ze zog saib nws yog ib qhov keeb.

cov koob yees duab matrix muaj xws li ib tug plurality ntawm lub teeb rhiab hais, uas hloov ib tug optical duab rau hauv hluav taws xob. Txhua pixel yog tsim los ntawm ib tug teev matrix ntawm lub duab kawg. Los ntawm lawv cov qauv yuav tsum tau muab faib mus rau hauv tag nrho cov ncej, hnyav scan, nrog kem buffered nrog ncej buffering tswv yim flare thiab qhaib. Nyob rau hauv cov ntaub ntawv no, lub matrix yuav tsum tau muab faib mus rau hauv ob lub ntsiab hom, uas yog tam sim no feem ntau pom nyob rau hauv cov koob yees duab muag.

Hom ntawm cov koob yees duab matrices

Rau ib ntev lub sij hawm peb muaj tau siv raws templates complementary hlau oxide semiconductors (CMOS), uas nws rhiab heev rau lub teeb sab hauv lub sixties. Ntawm no, lub teeb liab readout yuav ua tau los ntawm txhua qhov chaw, koj tsuas yuav tau qhia kom meej kab thiab sab. Yog li txhua pixel muaj ib tug nyeem teeb liab amplifier. Ib me ntsis tom qab muaj kev seev uas muaj xwb-ua ke ntaus ntawv (CCD), uas nyob rau hauv thaum pib twb ho superior rau CMOS-matrix. Nyob rau hauv xws systems, lub teeb liab nyeem ntawv ua piv rau CRT (cathode txoj sab ci raj), i.e. los ntawm sab laug mus rau sab xis thiab sab saum toj mus rau nram qab. Silicon photodiodes twb nyob rau hauv cov ntaub ntawv no raws li photosensitive ntsiab. Nyob rau hauv thaum ntxov nineties nws ua ib tug tseem ceeb kev txhim kho nyob rau hauv CMOS-sensor. Vim hais tias ntawm tej nta ntawm no hom ntawm matrices li sai tau kom tau li qub rhiab heev thiab siab duab zoo tsuas yog nyob rau theem teev matrices kheev siv nyob rau hauv kev koob yees duab nrog loj qhov ntev. Yog hais tias peb tham txog pheej yig pib xyaum ua qauv, nws yog qhov zoo tshaj plaws xaiv cov neeg uas yog nruab nrog ib tug matrix CCD. Tuam txhab uas muag xws li Canon thiab Nikon koob yees duab ua qauv nrog hloov CMOS-matrix, nws yog ib tug zoo ntawm ib tug kev hloov tswv yim.

Matrix koob yees duab muaj xws ib qho tseem ceeb cov yam ntxwv raws li cov kev daws teeb meem. Nyob rau hauv lub teeb meem hais txog cov xov tooj ntawm rhiab ntsiab nyob rau hauv ib tug matrix, txhua tus uas tau txais lub teeb thiab converts nws mus rau hauv ib lub qhov hluav taws xob xwb. Nws yog ib qho tseem ceeb kom nkag siab txog hais tias nws ua rau tsis muaj kev nkag siab rau caum lub xov tooj ntawm pixels li qhov zoo tshaj ntawm cov ntawv luam dluab yog zoo zoo tib yam, thiab qhov txawv tsuas pom nyob rau hauv ib tug magnifying khob.

Ib qho tseem ceeb cov yam ntxwv uas muaj ib tug matrix koob yees duab yog nws lub cev loj. Ntau zaus tshaj loj lub cev loj nws muaj, qhov zoo ntawm lub teeb liab / suab nrov ratio, uas yuav pab tau kom tau ib cov duab ntawm ntau dua zoo, muaj ib tug tej yam ntuj tso xim. Ib tug yuav hais tias cov ntau dua qhov loj ntawm lub matrix ntawm ib tug xov tooj ntawm pixels, ntau dua qhov zoo ntawm cov dluab.