{"id":2675,"date":"2021-01-25T22:58:24","date_gmt":"2021-01-25T15:58:24","guid":{"rendered":"https:\/\/dienmayxanh.xyz\/?p=2675"},"modified":"2021-01-25T22:59:58","modified_gmt":"2021-01-25T15:59:58","slug":"cach-tinh-khoang-cach-xem-tivi-an-toan-cho-mat","status":"publish","type":"post","link":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/cach-tinh-khoang-cach-xem-tivi-an-toan-cho-mat\/","title":{"rendered":"C\u00e1ch t\u00ednh kho\u1ea3ng c\u00e1ch xem tivi an to\u00e0n cho m\u1eaft"},"content":{"rendered":"

Kho\u1ea3ng c\u00e1ch xem\u00a0tivi\u00a0kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n xem \u0111\u01b0\u1ee3c tr\u1ecdn v\u1eb9n c\u00e1c n\u1ed9i dung tr\u00ean m\u00e0n h\u00ecnh m\u00e0 c\u00f2n c\u00f3 s\u1ef1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1eaft ng\u01b0\u1eddi xem. V\u1eady kho\u1ea3ng c\u00e1ch xem bao nhi\u00eau l\u00e0 h\u1ee3p l\u00fd? M\u1eddi b\u1ea1n xem qua b\u00e0i vi\u1ebft b\u00ean d\u01b0\u1edbi.<\/h2>\n

1<\/span>Xem tivi kh\u00f4ng \u0111\u00fang kho\u1ea3ng c\u00e1ch \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn m\u1eaft?<\/h3>\n

Xem tivi nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ec3 kh\u00f4ng g\u00e2y h\u1ea1i cho m\u1eaft ph\u1ee5 thu\u1ed9c v\u00e0o nhi\u1ec1u y\u1ebfu t\u1ed1 kh\u00e1c nhau nh\u01b0: \u0111\u1ed9 s\u00e1ng c\u1ee7a tivi, \u0111\u1ed9 ph\u00e2n gi\u1ea3i, ch\u1ea5t l\u01b0\u1ee3ng h\u00ecnh \u1ea3nh,…\u00a0trong \u0111\u00f3 kho\u1ea3ng c\u00e1ch xem tivi \u0111\u00f3ng vai tr\u00f2 l\u1edbn nh\u1ea5t trong c\u00e1c nguy\u00ean nh\u00e2n.<\/strong><\/p>\n

\"Kho\u1ea3ng<\/p>\n

V\u1edbi m\u1ed9t chi\u1ebfc tivi c\u00f3 m\u00e0n h\u00ecnh nh\u1ecf\u00a0kho\u1ea3ng 32 inch\u00a0n\u1ebfu b\u1ea1n ng\u1ed3i xa qu\u00e1\u00a0 t\u1ea7m 3m th\u00ec s\u1ebd kh\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c n\u1ed9i dung chi ti\u1ebft c\u00f3 tr\u00ean tivi.<\/p>\n

Ng\u01b0\u1ee3c l\u1ea1i n\u1ebfu chi\u1ebfc tivi to l\u00ean \u0111\u1ebfn\u00a065 inch\u00a0m\u00e0 ng\u1ed3i qu\u00e1 g\u1ea7n kho\u1ea3ng 2m khi xem s\u1ebd kh\u00f4ng th\u1ea5y \u0111\u01b0\u1ee3c to\u00e0n b\u1ed9 n\u1ed9i dung c\u0169ng nh\u01b0 l\u00e0 b\u1ecb m\u1ecfi m\u1eaft, \u0111au m\u1eaft khi xem. \u0110\u00f3 ch\u00ednh l\u00e0 nguy\u00ean nh\u00e2n l\u1edbn d\u1eabn \u0111\u1ebfn y\u1ebfu t\u1ed1 b\u1ecb c\u1eadn th\u1ecb.<\/p>\n

\"Kho\u1ea3ng<\/p>\n

2<\/span>C\u00e1ch t\u00ednh kho\u1ea3ng c\u00e1ch xem tivi<\/h3>\n

Theo b\u00e0i vi\u1ebft v\u1ec1 c\u00e1ch t\u00ednh kho\u1ea3ng c\u00e1ch xem tivi c\u1ee7a trang web n\u1ed5i ti\u1ebfng\u00a0Rtings.com\u00a0chuy\u00ean \u0111\u00e1nh gi\u00e1 v\u1ec1 tivi.<\/p>\n

D\u1eabn l\u1eddi t\u1eeb “Society of Motion Picture & Television Engineers” (Hi\u1ec7p h\u1ed9i v\u1ec1 chuy\u1ec3n \u0111\u1ed9ng h\u00ecnh \u1ea3nh v\u00e0 k\u1ef9 s\u01b0 truy\u1ec1n h\u00ecnh) th\u00ec g\u00f3c \u0111\u1ed9 m\u1eaft ng\u01b0\u1eddi \u0111\u1ec3 xem to\u00e0n b\u1ed9 n\u1ed9i dung tr\u00ean m\u00e0n h\u00ecnh s\u1ebd v\u00e0o kho\u1ea3ng 30 \u0111\u1ed9.<\/p>\n

\"G\u00f3c<\/p>\n

Ta c\u00f3 \u0111\u01b0\u1ee3c h\u00ecnh nh\u01b0 sau:<\/p>\n

\"H\u00ecnh<\/p>\n

Trong \u0111\u00f3:<\/p>\n

AB:<\/strong>\u00a0l\u00e0 m\u00e0n h\u00ecnh tivi.<\/p>\n

CE:<\/strong>\u00a0L\u00e0 kho\u1ea3ng c\u00e1ch xem t\u1eeb m\u1eaft \u0111\u1ebfn m\u00e0n h\u00ecnh tivi.\u00a0<\/p>\n

G\u00f3c C:<\/strong>\u00a0l\u00e0 g\u00f3c 30 \u0111\u1ed9.<\/p>\n

\u0110\u1ec3 t\u00ednh \u0111\u01b0\u1ee3c\u00a0CE<\/strong>\u00a0(kho\u1ea3ng c\u00e1ch xem tivi) ta \u00e1p d\u1ee5ng\u00a0c\u00f4ng th\u1ee9c l\u01b0\u1ee3ng gi\u00e1c Tan<\/u>\u00a0th\u00ec s\u1ebd \u0111\u01b0\u1ee3c nh\u01b0 sau:<\/p>\n

\"C\u00f4ng<\/p>\n

V\u00ed d\u1ee5 n\u1ebfu t\u00ednh m\u00e0n h\u00ecnh 32 inch c\u00f3 k\u00edch th\u01b0\u1edbc chi\u1ec1u ngang l\u00e0 kho\u1ea3ng 70 cm (AB) => T\u00ednh c\u1ea1nh AE ta l\u1ea5y AB\/2 => 35 cm. \u0110\u1ed5i ra m\u00e9t ta l\u1ea5y 35 chia cho 100 => 0.35 m\u00e9t. Sau \u0111\u00f3 ta \u00e1p d\u1ee5ng c\u00f4ng th\u1ee9c:<\/p>\n

\"V\u00ed<\/p>\n

Nh\u01b0 v\u1eady n\u1ebfu m\u00e0n h\u00ecnh 32 inch th\u00ec kho\u1ea3ng c\u00e1ch xem tivi c\u00f4ng th\u1ee9c t\u00ednh ra \u0111\u01b0\u1ee3c l\u00e0 ~ 1.3 m\u00e9t.<\/p>\n

T\u01b0\u01a1ng t\u1ef1 v\u1edbi c\u00e1c s\u1ed1 inch kh\u00e1c ta c\u00f3 b\u1ea3ng sau:<\/p>\n

\"K\u1ebft<\/p>\n

*L\u01b0u \u00fd:<\/strong>\u00a0Chi\u1ec1u d\u00e0i m\u00e0n h\u00ecnh tivi \u0110i\u1ec7n m\u00e1y XANH ch\u1ec9 l\u1ea5y s\u1ed1 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u00ec m\u1ed7i tivi c\u00f3 chi\u1ec1u d\u00e0i ch\u00eanh l\u1ec7ch kh\u00e1c nhau kh\u00f4ng qu\u00e1 5 cm.<\/p>\n

Tuy nhi\u00ean:\u00a0<\/strong>Khi \u0110i\u1ec7n m\u00e1y XANH ti\u1ebfn h\u00e0nh l\u1ea5y tr\u1ea3i nghi\u1ec7m th\u1ef1c t\u1ebf c\u1ee7a 10 ng\u01b0\u1eddi xem trong 20 ph\u00fat (xem nhi\u1ec1u th\u1ec3 lo\u1ea1i phim kh\u00e1c nhau) theo c\u00f4ng th\u1ee9c t\u00ednh nh\u01b0 tr\u00ean th\u00ec thu \u0111\u01b0\u1ee3c k\u1ebft qu\u1ea3 nh\u01b0 sau:<\/p>\n

\"K\u1ebft<\/p>\n","protected":false},"excerpt":{"rendered":"

Kho\u1ea3ng c\u00e1ch xem\u00a0tivi\u00a0kh\u00f4ng ch\u1ec9 gi\u00fap b\u1ea1n xem \u0111\u01b0\u1ee3c tr\u1ecdn v\u1eb9n c\u00e1c n\u1ed9i dung tr\u00ean m\u00e0n h\u00ecnh m\u00e0 c\u00f2n c\u00f3 s\u1ef1 \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn m\u1eaft ng\u01b0\u1eddi xem. V\u1eady kho\u1ea3ng c\u00e1ch xem bao nhi\u00eau l\u00e0 h\u1ee3p l\u00fd? M\u1eddi b\u1ea1n xem qua b\u00e0i vi\u1ebft b\u00ean d\u01b0\u1edbi. 1Xem tivi kh\u00f4ng \u0111\u00fang kho\u1ea3ng c\u00e1ch \u1ea3nh h\u01b0\u1edfng nh\u01b0 th\u1ebf n\u00e0o \u0111\u1ebfn […]\n","protected":false},"author":1,"featured_media":2676,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[232],"tags":[],"class_list":["post-2675","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-kinh-nghiem-hay"],"_links":{"self":[{"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/posts\/2675","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/comments?post=2675"}],"version-history":[{"count":0,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/posts\/2675\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/media\/2676"}],"wp:attachment":[{"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/media?parent=2675"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/categories?post=2675"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/theme.tamnguyen.vn\/dienmayxanh2\/wp-json\/wp\/v2\/tags?post=2675"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}