Nrawm nrawm - nrawm. Zaj duab xis lossis yees duab tua ntawm qhov zaus ntawm 32 txog 200 ntas ib pliag. Kev ua yeeb yaj kiab ua yeeb yaj kiab

2024 Tus sau: Leah Sherlock | [email protected]. Kawg hloov kho: 2023-12-17 05:37

Kev ua yeeb yaj kiab nrawm, dhau ntawm tus qauv (24 fps) zaus, yog siv los tsim cov nyhuv qeeb, uas yog qhov xav tau hauv kev ua yeeb yaj kiab, TV, kev ua si hauv computer, thiab xinesmas. Nws yog siv los ntes cov kev sib tw kis las, rov tsim cov kev txav ntawm cov ntsiab lus lossis cov xwm txheej ntuj raws li lub sijhawm teev teev. Lub vijtsam qhia txog qhov kev xav hauv lub sijhawm qeeb ntawm qhov tshwm sim ntawm cov yeeb yaj kiab, thaum tus saib tau muab lub sijhawm los txiav txim siab txog theem nrab ntawm cov txheej txheem thiab cov ntsiab lus tsis zoo sib txawv.

Slow motion features

hom kev tua:

• nrawm nrawm, lossis nrawm nrawm (32-200 fps) yog ua los ntawm kev siv cov cuab yeej txheem nrog lub tshuab clamshell thiab cov yeeb yaj kiab sib cuam tshuam;
• nrawm nrawm nrog qhov zaus ntawm 200-10,000 fps yog muab los ntawm kev ua yeeb yaj kiab tsis tu ncua uas siv cov txheej txheem kho qhov muag thiab hluav taws xob. Kev ua yeeb yaj kiab nrawm yog ua los ntawm txhais tes ntawm lub tsheb txav siv cov kws tshaj lij lossis cov neeg nyiam ua haujlwm zoo tib yamcov cuab yeej siv nrog kev ncua ntau zaus, tsim nyog rau cov duab ruaj khov.

Zaj duab xis thev naus laus zis tseem yuav luag tsis hloov pauv txij li xyoo 1955, tshwj tsis yog kev tsim hluav taws xob kaw, txawm hais tias cov duab tam sim no raug ntes tsis nyob rau hauv zaj duab xis, tab sis ntawm cov kab ke ntawm digital matrices, ua tsaug rau tus ncej tus nqi ntawm 100 lab. ib ob yog muab.

Qib ntawm kev nrawm yog txwv los ntawm lub peev xwm ntawm lub koob yees duab, nws cov qauv tsim thiab kev ua haujlwm zoo. Rau cov khoom siv amateur, nrawm nrawm yog ib txwm - 64-72 fps, rau cov cuab yeej tshaj lij - 360-600 fps. Cov koob yees duab niaj hnub muaj peev xwm muab qhov zaus ntawm 200 fps nrog nws maj mam nce kom tau txais cov txiaj ntsig tshwj xeeb ntawm kev nce nrawm. Yog tias xav tau kev nrawm dua, ces lawv mus rau kev tswj hwm ntawm thav duab ntawm zaj duab xis.

Frame nqi

Muaj ntau hom kev ua yeeb yaj kiab hauv kev tshawb fawb thiab siv cinematography, tshwj xeeb rau kev kawm ntawm cov xwm txheej ceev thiab cov txheej txheem. Ib tug ntawm lawv yog high-speed, los yog ceev-shooting, nrog ib tug zaus ntawm ntau tshaj 250 thav duab ib ob, uas tso cai rau koj mus ntes cov txheej txheem uas tsis muaj peev xwm nkag mus rau kev nkag siab ntawm tib neeg lub qhov muag vim lub sij hawm luv luv los yog kev kub ceev ntawm phenomena..

Tus naj npawb ntawm cov khoom ntawm kev kawm tuaj yeem suav nrog:

• txav ntawm cov tsiaj muaj sia: ncej tus nqi yog los ntawm 100 txog 300 fps, shutter ceev yog 1/1000;
• functioning mechanisms (1-10000 fps);
• kev puas tsuaj thiab tawg (10-100k fps);
• shocks nthwv dej (100 txhiab - 1lab fps);
• hluav taws xob tawm (10-100 lab fps) thiab zoo li.

Techniques

Vim muaj ntau yam xwm txheej, ntau yam kev txhais lus thiab ntau zaus, kev yees duab yees duab ntawm cov khoom zoo yog ua tau. Cov cuab yeej siv thev naus laus zis, ntxiv rau cov txheej txheem tsim cov duab, kuj tseem siv cov cuab yeej kho qhov muag, lub kaw nrawm, hluav taws xob thiab kho qhov muag hloov pauv.

Kev yees duab nrawm feem ntau yog ua tiav nrog cov teeb pom kev zoo (cov teeb tawm, cov teeb pom kev tawg, huab cua qhov sib txawv).

Chronophotography yog ib qho nruab nrab ntawm kev yees duab thiab kev ua yeeb yaj kiab ib txoj hauv kev ntawm kev ntes cov theem ua tiav ntawm cov xwm txheej uas siv lub qhov rooj qhib qhov rooj. Cov duab uas tau tshwm sim yog txheej txheej saum toj ntawm ib leeg thiab muab tso rau hauv ib daim kab xev. Cov txheej txheem yog siv rau kev txav mus tas li ntawm qhov khoom ntawm kev soj ntsuam. Cov teebmeem tshwj xeeb yog muab los ntawm lub lens qhib nrog lub teeb pom kev zoo.

txoj kev ua yeeb yaj kiab nrawm

1. Cov yeeb yaj kiab sib cuam tshuam tau luam tawm ntawm 600 fps siv lub tshuab thauj khoom siv tshuab.
2. Ntau nrawm dua ntawm 1000 fps yog pom tau tias siv cov khoom siv pneumatic lossis nrog kev txav ntawm zaj duab xis vim qhov elasticity ntawm cov voj voog uas tsim tom qab cov yeeb yaj kiab channel.
3. Tsiv photosensitive sensors yog siv los ua kom tiav ntau duacov ntaub ntawv.

Cov txiaj ntsig ntawm kev txhaj tshuaj ntse ntawm kev hloov pauv tau zoo yog ua tau los ntawm kev hloov cov yeeb yaj kiab txheeb ze rau cov khoom raws li hauv qab no.

hluav taws xob hloov

Ib txoj hauv kev uas slit obturators txiav tawm lub sijhawm txwv cov ntsiab lus rau nthuav tawm tus ncej. Rau lub sijhawm luv tshaj plaws ntawm lub sijhawm, kev hloov pauv ntawm cov thav duab txheeb ze rau cov duab kho qhov muag tsis pub dhau qhov pom pom qhov pom ntawm qhov tsis zoo. Koj yuav xav tau lub teeb pom kev sib cuam tshuam nrog lub teeb ci ntsa iab (ntev 10-7 feem ntawm ib thib ob) lossis lub kaw zoo li lub kaw lus nyob rau pem hauv ntej ntawm tus ncej txuas, tab sis es tsis txhob txiav tawm tej zaum yuav muaj qhov me me (ib lossis ntau dua).

Kev hloov kho qhov muag

Yog tias nrawm nrawm nrog cov duab tseem cuam tshuam nrog kev txav ntawm cov yeeb yaj kiab, nws yog qhov tsim nyog yuav tsum ua kom tsis muaj kev hloov pauv ntawm cov khoom siv hluav taws xob uas cuam tshuam rau cov duab hauv qhov cuam tshuam ntawm tus ncej los ntawm kev txav lub teeb- reflecting optical system, ua yeeb yam ntawm qhov ceev thiab nyob rau hauv cov kev taw qhia ntawm cov zaj duab xis txav.

Txhawm rau siv cov nyiaj them rau kho qhov muag, daim iav polyhedron, iav phaj lossis prism hauv kev txav yog tsim nyog. Qhov luaj li cas thiab txoj hauj lwm ntawm cov khoom siv kho qhov muag yuav tsum xyuas kom meej tias qhov kev hloov pauv ntawm cov kab sib tw sib tw nrog cov ncej txav. Cov zaj duab xis yuav tsum tau muab tso rau saum npoo ntawm polyhedron nyob rau hauv ib tug tshwj xeeb zaj duab xis channel. Cov txheej txheem yog siv rau cov txheej txheem ntim qis.

Ntau zaus txwv rau kev hloov hluav taws xob yog txwv los ntawm qhov ua tau kom luv luvnruab nrab ntawm flashes, thiab nrog optical - qhov ceev ntawm kev sib hloov ntawm lub shutter disk thiab nws txoj kab uas hla.

Kev ua lag luam qeeb

Rau qhov pom ntawm qhov screen, siv cov lus tsa suab qeeb, uas yog ua tau ob qho tib si nrog kev nce hauv qhov zaus ntawm kev ua yeeb yaj kiab, thiab thaum qeeb qeeb ntawm kev txav ntawm zaj duab xis hauv qhov projector.

Qhov tsis zoo ntawm txoj kev yog qhov pom kev tsis sib xws, thiab qee cov txheej txheem siab ceev feem ntau poob tawm ntawm qhov pom, nkaum ntawm cov thav duab ntes thaum tua. Yog tias qhov qeeb qeeb ntau dua 1 fps, cov duab yuav tshwm sim zoo li cov yeeb yaj kiab swb. Yog li ntawd, kev xaiv qeeb qeeb feem ntau hloov los ntawm kev txav nrawm.

1. Cov koob yees duab niaj hnub no tau nruab nrog lub tshuab hluav taws xob ruaj khov, tab sis tseem ua tau zoo ntawm cov duab nrawm yog tsim los ntawm kev txhawb nqa-ntev, "monopod", kom ntseeg tau tias cov duab ruaj khov yam tsis muaj kev co.
2. Vertical khoom thiab ncej sab yuav tsum ua tib yam.
3. Cov txheej txheem video zoo li kev sib txuas nrog kev txhaj tshuaj me me thiab nruab nrab yog suav tias yog qhov zoo. Kev siv ntau dhau ntawm lub kaw lus zoom yuav ua rau tus neeg saib tsis xis nyob, yog li qee zaum nws yog qhov zoo tshaj kom tsis txhob kaw, zoom hauv thiab tom qab ntawd txuas ntxiv.
4. Lub sijhawm zoo tshaj plaws rau kev nkag siab yog suav tias yog thaj tsam li 5 vib nas this, qhov siab tshaj plaws ntawm 12 txhawm rau tswj kom muaj kev noj qab haus huv thiab muaj zog ntawm cov duab.
5. Teeb qhov nyiaj tshuav dawb hauv chav tsev teeb pom kev zoo yog pom zoo kom ua manually.
6. LineLub qab ntug tsis yog tus yam ntxwv kawg uas paub qhov txawv ntawm kev yees duab tua: nws yuav tsum nyob rau theem ntawm kab nruab nrab ntawm qhov pom lossis siab dua me ntsis. Scenes qhov twg saum tus ncej yog 2/3 ntawm lub ntuj yog perceived nrog nro.
7. Muab ntim rau qhov nruab nrab thiab loj, koj tuaj yeem tso ib qho khoom rau pem hauv ntej ntawm lub lens uas unobtrusively tsim lub tswv yim ntawm qhov tob thiab nplai ntawm daim duab.



8. Thaum xaiv lub kaum sab xis tua, ib tus yuav tsum xav txog ntau yam kev xav, mus dhau qhov kev xav, piv txwv li, qhia cov khoom los ntawm sab ntawm cov neeg tuaj saib thiab "cov neeg txiav txim", thiab los ntawm lub qhov muag ntawm tus neeg saib xyuas sab nraud. Thiab txhua kauj ruam zoo li no rau tus neeg teb xov tooj yog ib puag ncig tshiab hauv nws qhov kev txawj ntse thiab kev tshawb pom tshiab uas nce nws qib.

Kev coj ncaj ncees yuav tsum tau hais tseg: thaum lub sijhawm muaj xwm txheej loj, tsis muaj ntau lub ntsiab lus uas tsim nyog rau kev tua kom tiav, yog li nws tsim nyog saib xyuas txhua yam tsim nyog ua ntej.