M\u00e1y photocopy \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o theo nguy\u00ean l\u00ed \u0111i\u1ec7n t\u00edch \u00e2m v\u00e0 d\u01b0\u01a1ng h\u00fat nhau. Khi m\u1ed9t t\u1edd gi\u1ea5y c\u00f3 h\u00ecnh \u1ea3nh c\u1ea7n in l\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean b\u00e0n in c\u1ee7a m\u00e1y photocopy, \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1, h\u00ecnh th\u00e0nh d\u01b0\u1edbi s\u1ef1 chi\u1ebfu x\u1ea1 c\u1ee7a \u00e1nh \u0111\u00e8n trong m\u00e1y, \u0111i qua h\u1ec7 th\u1ed1ng quang h\u1ecdc do k\u00ednh ph\u1ea3n x\u1ea1 v\u00e0 th\u1ea5u k\u00ednh h\u1ee3p th\u00e0nh, t\u1ee5 ti\u00eau th\u00e0nh \u1ea3nh. \u1ea2nh n\u00e0y v\u1eeba \u0111\u00fang r\u01a1i l\u00ean c\u00e1i tr\u1ed1ng ph\u01a1i quang d\u1eabn. Tr\u1ed1ng ph\u01a1i quang d\u1eabn l\u00e0 m\u1ed9t lo\u1ea1i \u1ed1ng c\u00f3 k\u1ebft c\u1ea5u d\u1ea1ng tr\u1ed1ng tr\u00f2n, tr\u00ean m\u1eb7t c\u00f3 ph\u1ee7 m\u00e0ng m\u1ecfng ch\u1ea5t quang d\u1eabn ph\u01a1i. Ch\u1ea5t quang d\u1eabn r\u1ea5t nh\u1ea1y v\u1edbi \u00e1nh s\u00e1ng. Khi kh\u00f4ng c\u00f3 tia s\u00e1ng th\u00ec n\u00f3 c\u00f3 \u0111i\u1ec7n tr\u1edf su\u1ea5t cao; c\u00f3 \u00e1nh s\u00e1ng chi\u1ebfu v\u00e0o, \u0111i\u1ec7n tr\u1edf su\u1ea5t li\u1ec1n nhanh ch\u00f3ng h\u1ea1 xu\u1ed1ng. L\u00fac gi\u1eef vai tr\u00f2 c\u1ee7a m\u1ed9t \u0111i\u1ec7n c\u1ef1c, b\u1ec1 m\u1eb7t ch\u1ea5t quang d\u1eabn c\u00f3 mang \u0111i\u1ec7n t\u00edch t\u0129nh \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n\n\n\n
Khi \u1ea3nh \u00e1nh s\u00e1ng, h\u00ecnh th\u00e0nh b\u1edfi \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 c\u1ee7a h\u00ecnh \u1ea3nh c\u1ea7n in l\u1ea1i, r\u01a1i l\u00ean b\u1ec1 m\u1eb7t ch\u1ea5t quang d\u1eabn, do h\u00ecnh \u1ea3nh c\u00f3 ch\u1ed7 \u0111\u1eadm, ch\u1ed7 nh\u1ea1t, \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1 c\u00f3 m\u1ea1nh c\u00f3 y\u1ebfu, l\u00e0m cho \u0111i\u1ec7n tr\u1edf su\u1ea5t c\u1ee7a ch\u1ea5t quang d\u1eabn sinh ra bi\u1ebfn \u0111\u1ed5i t\u01b0\u01a1ng \u1ee9ng. \u0110i\u1ec7n t\u00edch t\u0129nh c\u1ee7a b\u1ec1 m\u1eb7t ch\u1ea5t quang d\u1eabn c\u0169ng theo m\u1ee9c \u0111\u1ed9 m\u1ea1nh y\u1ebfu c\u1ee7a tia s\u00e1ng m\u00e0 bi\u1ebfn m\u1ea5t ho\u1eb7c bi\u1ebfn m\u1ea5t m\u1ed9t ph\u1ea7n, tr\u00ean l\u1edbp m\u00e0ng c\u1ee7a ch\u1ea5t quang d\u1eabn h\u00ecnh th\u00e0nh l\u00ean m\u1ed9t h\u00ecnh \u1ea3nh \u1ea9n t\u0129nh \u0111i\u1ec7n. M\u1eaft th\u01b0\u1eddng kh\u00f4ng nh\u00ecn th\u1ea5y n\u00f3. N\u00f3 c\u00f3 v\u1ebb nh\u01b0 \u1ea9n m\u00ecnh trong l\u1edbp m\u00e0ng m\u1ecfng c\u1ee7a ch\u1ea5t quang d\u1eabn.<\/p>\n\n\n\n
Khi \u1ea5y, m\u1ed9t lo\u1ea1i m\u1ef1c \u0111en hi\u1ec7n \u1ea3nh c\u00f3 c\u1ef1c t\u00ednh ng\u01b0\u1ee3c l\u1ea1i v\u1edbi \u0111i\u1ec7n t\u00edch tr\u00ean \u1ea3nh \u1ea9n t\u0129nh \u0111i\u1ec7n, d\u01b0\u1edbi s\u1ee9c h\u00fat c\u1ee7a l\u1ef1c \u0111i\u1ec7n tr\u01b0\u1eddng, b\u00e1m l\u00ean tr\u00ean b\u1ec1 m\u1eb7t ch\u1ea5t quang d\u1eabn. L\u01b0\u1ee3ng b\u1ed9t m\u1ef1c b\u00e1m l\u00ean \u1ea3nh \u1ea9n tu\u1ef3 theo s\u1ed1 l\u01b0\u1ee3ng nhi\u1ec1u \u00edt c\u1ee7a \u0111i\u1ec7n t\u00edch tr\u00ean \u1ea3nh \u1ea9n m\u00e0 t\u0103ng gi\u1ea3m. Th\u1ebf l\u00e0 tr\u00ean m\u1eb7t tr\u1ed1ng ph\u01a1i hi\u1ec3n hi\u1ec7n ra m\u1ed9t h\u00ecnh \u1ea3nh b\u1eb1ng b\u1ed9t m\u1ef1c c\u00f3 t\u1ea7ng l\u1edbp n\u00f4ng s\u00e2u r\u00f5 r\u1ec7t. Khi gi\u1ea5y in ti\u1ebfp x\u00fac v\u1edbi h\u00ecnh \u1ea3nh b\u1ed9t m\u1ef1c, d\u01b0\u1edbi t\u00e1c \u0111\u1ed9ng c\u1ee7a l\u1ef1c \u0111i\u1ec7n tr\u01b0\u1eddng, h\u00ecnh \u1ea3nh c\u00f3 b\u1ed9t m\u1ef1c b\u00e1m v\u00e0o li\u1ec1n chuy\u1ec3n giao b\u1ed9t m\u1ef1c sang t\u1edd gi\u1ea5y in, nh\u01b0 ki\u1ec3u \u0111\u00f3ng d\u1ea5u v\u00e0o \u0111\u1ea5y, tr\u00ean gi\u1ea5y in c\u0169ng h\u00ecnh th\u00e0nh h\u00ecnh \u1ea3nh b\u1ed9t m\u1ef1c.<\/p>\n\n\n\n
Ti\u1ebfp \u0111\u1ebfn \u0111\u01b0a gi\u1ea5y in \u0111\u00f3 v\u00e0o trong b\u1ed9 ph\u1eadn \u0111\u1ecbnh h\u00ecnh v\u00e0 gia nhi\u1ec7t, nh\u1ef1a ch\u1ee9a trong b\u1ed9t m\u1ef1c ch\u1ea3y ra, th\u1ebf l\u00e0 b\u1ed9t m\u1ef1c d\u00ednh k\u1ebft ch\u1eb7t l\u00ean trang gi\u1ea5y, h\u00ecnh \u1ea3nh v\u00e0 ch\u1eef vi\u1ebft li\u1ec1n \u0111\u01b0\u1ee3c in l\u1ea1i tr\u00ean gi\u1ea5y.<\/p>\n\n\n\n
T\u1eeb kh\u00f3a: M\u00e1y photocopy; \u1ea2nh \u1ea9n t\u0129nh \u0111i\u1ec7n.<\/p>\n\n\n\n
<\/p>\n\n\n\n\n\n\n","protected":false},"excerpt":{"rendered":"
M\u00e1y photocopy \u0111\u01b0\u1ee3c ch\u1ebf t\u1ea1o theo nguy\u00ean l\u00ed \u0111i\u1ec7n t\u00edch \u00e2m v\u00e0 d\u01b0\u01a1ng h\u00fat nhau. Khi m\u1ed9t t\u1edd gi\u1ea5y c\u00f3 h\u00ecnh \u1ea3nh c\u1ea7n in l\u1ea1i \u0111\u01b0\u1ee3c \u0111\u1eb7t l\u00ean b\u00e0n in c\u1ee7a m\u00e1y photocopy, \u00e1nh s\u00e1ng ph\u1ea3n x\u1ea1, h\u00ecnh th\u00e0nh d\u01b0\u1edbi s\u1ef1 chi\u1ebfu x\u1ea1 c\u1ee7a \u00e1nh \u0111\u00e8n trong m\u00e1y, \u0111i qua h\u1ec7 th\u1ed1ng quang h\u1ecdc do […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_disable_autopaging":false},"categories":[15,7],"tags":[],"class_list":["post-5906","post","type-post","status-publish","format-standard","hentry","category-hoi-dap-khoa-hoc","category-vat-ly"],"_links":{"self":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/comments?post=5906"}],"version-history":[{"count":0,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/posts\/5906\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/media?parent=5906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/categories?post=5906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vietlearn.org\/kien-thuc\/wp-json\/wp\/v2\/tags?post=5906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}