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MICROSCOPUL OPTIC

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by Andreea M on 17 December 2013

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Transcript of MICROSCOPUL OPTIC

Ce este microscopul optic?


Microscopul este un instrument stiintific care serveste la vizualizarea detaliilor tisulare, celulare si macromoleculare care nu sunt vizibile la rezolutia ochiului liber.
Componentele microscopului:
Schema microscopului optic
MICROSCOPUL OPTIC
Microscopul optic
– este un aparat optic de marit care utilizează ca sursa de radiatie fotonul (lumina alba). Calitatea cea mai de pret a unui microscop este puterea de separare sau rezolutia aparatului (cea mai mica distananta la care doua puncte pot fi vazute distinct).
Aparatul optic da a o imagine inversataăsi mult marit, virtualăsau realăa obiectelor prelucrate dupa tehnica cito-histologic. Examinarea se face prin transparentaţpreparatul histologic fiind strabatut de un flux fotonic dirijat. Structurile având diferte densitati, determinaăaparitia unor fenomene de refracactie si difractie a fluxului fotonic care stau la baza reconstruirii imaginii de catre sistemul optic al microscopului.
Referat la fizica
al elevei: Moldanschi Andreea
clasa: a IX-a F
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