ʻO ke kumukūʻai kiʻekiʻe o ka projector e hōʻike ana i kāna koho pono. ʻO 30-60 tausani rubles ka nui o ka nui āu e pono ai e nānā. E kōkua kēia mea iā ʻoe e pane i ka nīnau: pehea e koho ai i kahi projector a hoʻomaopopo i nā nuances a me nā mea nui o kēia koho.
E like me ka mea i ʻōlelo ʻia ma luna, ʻo ke kumukūʻai kiʻekiʻe loa no kahi projector ma muli o kāna hoʻolālā. ʻO ka mea mua, i ke koho ʻana i kekahi mea uila, pono ʻoe e hoʻoholo i kāu mea e pono ai? Pono e hana like no ka projector, no ka mea, he mea ʻokoʻa loa ka projector no nā hōʻike a me ka projector no ka nānā ʻana i nā kiʻiʻoniʻoni ma ka home.
E lawe, no ka laʻana, i kahi projector no nā hōʻike. No ka mea e hele pinepine ia me ʻoe i nā hanana like ʻole, ʻo kona compactness, ke kaumaha a me ka ʻōlinolino e puka mua mai. ʻOkoʻa ke kūlana a me nā koi no nā projectors home, no ka mea makemake lākou i ka hana mālie a me ke ʻano kiʻi kiʻekiʻe.
E noʻonoʻo i nā kumu kumu o ka projector
CTR projectors
ʻEkolu kinescopes e hana i kahi kiʻi maʻamau me ke kōkua o kahi lens i hui pū ʻia ma ka pale. ʻO ia mau projectors he ʻano nui, kaumaha (hiki ke kaumaha i nā ʻumi kilokani) a ʻaʻole kelepona, no laila ʻaʻole kūpono lākou no ka lawelawe ʻana i nā hōʻike. Eia kekahi, ʻo ka hoʻonohonoho ʻana i ia mau mea paʻakikī a koi i ke kōkua o kahi loea. ʻO ka ʻaoʻao maikaʻi o nā projectors CTR ka maikaʻi o ke kiʻi. Hoʻopili kala pololei a me nā leo waiwai, ʻaʻohe walaʻau a pixelation. Hoʻolilo kēia mau mea hoʻohui a pau i projector maikaʻi loa no ka nānā ʻana i nā kiʻiʻoniʻoni ma kou home.
ʻAʻole hiki ke ʻike i ke kumukūʻai kiʻekiʻe e uku ʻia no kēlā projector, no laila ua hoʻopau koke ʻia ka hapa nui o nā mea kūʻai aku.
Nā papahana LCD
ʻO ke kumu o ke kūkulu ʻana i kiʻi penei: ʻo ke kukui e hele ana i loko o ka matrix kristal wai e pā i ka pale. Hāʻawi kēia physics o ka hana iā ʻoe e hana i nā hiʻohiʻona kūpono me ka ʻōlinolino maikaʻi. ʻO nā drawbacks koʻikoʻi, pono ia e ʻike i ka walaʻau o ka peʻa e hoʻoluʻu ana i ka matrix, no ka mea, aia nā kristal e pili ana i nā wela kiʻekiʻe. Eia kekahi, e nānā pono ana, hiki iā ʻoe ke loaʻa ma ka pale i kahi mākia o nā pika matrix.
No ka hoʻomaikaʻi ʻana i ka maikaʻi o ke kiʻi, hoʻohana nā mea hana i kekahi mau matrices kristal wai. ʻO nā LCD projectors kekahi o nā māhele kaulana loa i ka mākeke projector, hiki ke hoʻololi ke kumukūʻai o ia mau hiʻohiʻona mai 30,000 tausani rubles a ʻoi aku.
LP projectors
ʻO kahi ulu hou i loaʻa i kāna mau mea kūʻai. Hoʻokumu ʻia ka ʻenehana i kahi matrix reflective, aia i nā micromirrors he nui. Hōʻike ʻia ke kukui mai kēia kukui mai ka matrix ma o kahi kānana kukui kūikawā a paʻi i ka pale. ʻO kahi pōmaikaʻi koʻikoʻi i ka hoʻohālikelike ʻana me nā LCD projectors ʻo ka nele o ka pixel sec ma ka ʻaoʻao, loaʻa kēia i kahi palena liʻiliʻi ma waena o nā aniani, i hoʻohālikelike ʻia me kahi matrix kristal wai. ʻO kekahi kumu maikaʻi ʻo ka pae kiʻekiʻe o ka mālamalama. Hana ʻia kēia ma muli o ka paʻi ʻana o ke kukui i ka pale me ka pohō ʻole, ʻaʻole like me nā mea hana LCD. A ʻo ka hoʻohui hope loa ka nele o ka inertia.
Ma waena o nā mea liʻiliʻi, hiki ke ʻike ʻia ke kiʻi discrete, i hoʻomālamalama ʻia ke kiko a i ʻole.
ʻAʻole kūpono ka ʻenehana, akā ʻimi nā mea hana i kahi ala i waho o ke kūlana. Ma ka hoʻonuiʻana i ka helu o nā matrices a me ka hoʻonuiʻana i nā kānana.
Mai kūʻai aku i nā projectors DLP cheap e nānā i nā wikiō. ʻO ke kiʻi i hana ʻia he kikoʻī loa a aia kahi hopena flickering ma ka pale, kahi e luhi ai nā maka i ka wā e nānā lōʻihi ai.
Nā mea hoʻoheheʻe D-ILA
ʻO ka ʻenehana ikaika loa e hoʻopili ana i nā hiʻohiʻona maikaʻi o nā LCD a me DLP projectors. Hana ʻia ma kahi matrix paʻakikī o nā kristal wai. Hiki ke hana i nā wela kiʻekiʻe. Manaʻo ka poʻe akamai i kēia ʻenehana ʻoi aku ka maikaʻi, a hoʻomohala nā mea hana.
Akā, pono e hoʻomaopopo ʻaʻole maʻamau kēia mau projectors i ke ola. ʻO ke kumu o kēia he kumu kūʻai kiʻekiʻe loa, no laila e kaupalena ʻia kāu koho i nā LCD a me DLP projectors.
Hoʻoholo papahana
I ka wā kahiko, aia ka hoʻonā o ka projector ma ke kiʻekiʻe o nā kāleka wikiō PC maʻamau, akā me ka hoʻomohala ʻana o ka ʻenehana kikohoʻe, ke kīwī wehewehe kiʻekiʻe a me ka hiki ʻana mai o DVD a me FullHD, ʻoi aku ka kiʻekiʻe o ka hoʻonā o nā projectors.
E noʻonoʻo i nā koho ʻae maʻamau:
SVGA (800x600)
XGA (1024x780)
SXGA (1280x1024)
UXGA (1600x1200)
QXGA(2048x1536)
HD piha (1920x1080)
WUXGA(1920x1200)
HD 4K (4096x2400)
Ma waho aʻe o nā mea i helu ʻia, aia kekahi mau palapala maʻamau. E like me ka mea i haʻi mua ʻia, ʻoi aku ka maikaʻi o nā hiʻohiʻona ākea no ka nānā ʻana i nā kiʻiʻoniʻoni. He mea kūpono hoʻi e hoʻomaopopo i nā ʻano o nā ʻenehana kikohoʻe hou a me ke kīwī i hoʻoholo nui i ka hoʻololi ʻana o ka hana ʻana o nā projectors i nā matrices nui i waena o nā mea hana.
Kākoʻo nā mea hoʻolalelale hou i nā ʻano waihoʻoluʻu maʻamau PAL, SECAM, NTSC4, me ke kīwī wehewehe kiʻekiʻe HDTV.
E ʻoluʻolu, ʻoi aku ka kiʻekiʻe o ka hoʻonā, ʻoi aku ka maikaʻi o ke kiʻi ma ka pale a ʻoi aku ka kiʻekiʻe o ke kumukūʻai o ka projector.
ʻAlohilohi, ʻōlinolino
Nā ʻāpana ʻālohilohi ANSI lm. ʻAʻole mākou e hele i nā pilikia ʻenehana, akā hāʻawi wale i nā waiwai mahalo i hiki iā ʻoe ke hoʻokele. No nā projectors i hoʻolālā ʻia no ka nānā ʻana i nā kiʻiʻoniʻoni i loko o kahi lumi ʻeleʻele, ua lawa ka luminous flux o 700 a 1500 ANSI lumens. Inā hoʻohana ʻia kāu projector no ka hōʻike ʻana i loko o nā lumi mālamalama maikaʻi, pono e kūʻai i kahi projector mālamalama kiʻekiʻe.
I ke kūʻai ʻana, pono e noʻonoʻo ʻia ʻo ka luminous flux i hōʻike ʻia i nā ʻano ʻenehana o ka projector ma lalo o nā waiwai maoli ma kahi o 10%, a ma kekahi mau mea ʻoi aku.
Eia kekahi, e makaʻala ʻaʻole e hōʻike i ka pale i ka lā. ʻAʻole, ʻo ka projector ikaika loa e hāʻawi i kahi kiʻi maikaʻi a kiʻekiʻe i kēia hihia, no laila e hoʻohana pono i nā makapō a i ʻole nā pale i hana ʻia i ka lole mānoanoa ke nānā ʻana i nā kiʻiʻoniʻoni.
Nā kikowaena pūnaewele
Ke hele nei ka hoʻoili ʻikepili ueaʻole i kēia lā. ʻO ka nele o nā uea, Wi-Fi a me nā ʻenehana bluetooth ua paʻa paʻa i ke ola o kēlā me kēia mea hoʻohana PC ikaika. Hiki i nā projectors o kēia lā ke kiʻi i ka ʻikepili ma luna o kahi pūnaewele, me ke kelepona. Ma hope o ke kūʻai ʻana i kahi adapter kūikawā, loaʻa i kēlā me kēia projector ka hiki ke loaʻa ka wikiō streaming.
Hoʻohālikelike
ʻO ka ratio o ka hoʻomālamalama kiʻekiʻe o ka pale i ka liʻiliʻi i kapa ʻia ʻo ka ratio contrast. ʻO ka ʻokoʻa kekahi o nā mea nui loa i ke koho ʻana i kahi projector no kāu hale keaka. I kēia lā, ke hoʻāʻo nei nā mea hana, e hoʻokūkū ana kekahi i kekahi, e hoʻonui iki i kēia ʻāpana i nā hiʻohiʻona o ka huahana. Me kēia mau mea a pau, ʻaʻole loli nā ʻenehana hana i ka manawa like a aneane hiki ʻole ke hoʻomaopopo ma ke kumu o ka mea a ka mea hana i kau ai i kēia a i kēlā helu. ʻO ka mea pōʻino, hoʻohenehene ʻino kēia mau mea i ka mea kūʻai aku a paʻakikī loa ke koho ʻana i kahi projector. No ka laʻana, i ka makahiki 2004 he 3,000:1 kēia waiwai, a i ka makahiki 2010, ʻo ka helu ma ka ʻikepili passport he 10,000:1. Pono ʻoe e nānā i ka brand a me kou ʻike ponoʻī.
lens projector
Hoʻolako ʻia nā mea hana ʻoniʻoni hou me nā lens zoom. He mea maʻalahi kēia i ka hana, hiki ke hoʻololi i ka nui o ke kiʻi me ka neʻe ʻole o ka projector mai kahi a kahi.
Loaʻa ka hiki ke hoʻomalu i ke kiʻi, ka hoʻoponopono kikoʻī i kēia lā mai ka mana mamao.
I nā hiʻohiʻona kiʻekiʻe loa, ua hoʻolako ʻia nā lens me nā uila uila, e ʻae ʻaʻole i ka lima wale nō, akā mai ka mana mamao hoʻi, e hoʻololi i ke kiʻi kiʻi a hoʻoponopono i ka nānā. ʻO kēia ʻano maikaʻi, ʻoiaʻiʻo, maʻalahi, ʻoiai ke kau ʻia ka projector ma ke kaupaku, akā hoʻonui ia i ke kumukūʻai o ka hāmeʻa. ʻO ka hiʻohiʻona koʻikoʻi o ka lens ka mea i kapa ʻia. ʻO Throw Ratio Pro kahi waiwai e like me ka ratio o ka mamao kuhi i ka laula o ke kiʻi. Loaʻa nā lens maʻamau i ka Pro ma ka laulā o 1.8-2.2, lōʻihi-kumu - a hiki i 4-8, pōkole-kumu - 0.8 -1.2. I kēia mau lā, ua ʻike ʻia nā projectors me nā waiwai liʻiliʻi loa o ka ratio projection. Hiki ke hana i nā kiʻi 80 a 100 iniha ma ka diagonal (ma kahi o 180 a 200 knm ka laula) ma kahi mamao hoʻolālā o 8 a 30 knm wale nō, ua manaʻo nui ʻia kēia mau projectors no ka hoʻohana ʻana me nā papa keʻokeʻo interactive a me nā noi kūikawā ʻē aʻe.
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April 19, 2024 16:58:27 +0300 GMT
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