شيء</SPAN>
مختلف</SPAN></SPAN> </SPAN></SPAN></SPAN>أوضـاع الصورة</SPAN> </SPAN></SPAN></SPAN>
</SPAN>
</SPAN></SPAN></SPAN>تطبيـقات</SPAN></SPAN> </SPAN></SPAN></SPAN></SPAN>حول</SPAN></SPAN> </SPAN></SPAN></SPAN>الإنـشاء الهندســـــــي لشيء في</SPAN> </SPAN></SPAN></SPAN>أوضاع مختلفة</SPAN> </SPAN></SPAN></SPAN>
</SPAN>في كل الرسوم البيانية التالية نستعمل</SPAN>
·</SPAN> </SPAN>عدسة مجمعة مسافتها</SPAN> </SPAN></SPAN></SPAN>البؤرية</SPAN></SPAN> </SPAN></SPAN>:</SPAN></SPAN> </SPAN> </SPAN>f=OF=OF'=4cm</SPAN> </SPAN> ·</SPAN> </SPAN>نعتبــــــــــر الشيء</SPAN> </SPAN></SPAN></SPAN>AB</SPAN> </SPAN></SPAN></SPAN>طــوله</SPAN> </SPAN></SPAN>: </SPAN>AB = 1 cm</SPAN> |
</SPAN></SPAN>
</SPAN> </SPAN></SPAN>
</SPAN> </SPAN></SPAN>
1 </SPAN>
</SPAN>الحـالة</SPAN></SPAN> </SPAN></SPAN></SPAN>الأولى</SPAN> </SPAN></SPAN></SPAN></SPAN>
نضع</SPAN> </SPAN></SPAN></SPAN>الشـيء</SPAN></SPAN> </SPAN></SPAN></SPAN>A</SPAN> B</SPAN> </SPAN></SPAN></SPAN>فـــي بؤرة الشيء أي</SPAN> </SPAN></SPAN></SPAN>
</SPAN>OA=f=OF</SPAN> </SPAN>OA=4cm</SPAN>
</SPAN> </SPAN></SPAN>
</SPAN> </SPAN></SPAN>
</SPAN>
1 </SPAN>
</SPAN>الحـالة</SPAN></SPAN> </SPAN></SPAN></SPAN>الأولى</SPAN> </SPAN></SPAN></SPAN></SPAN>
نضع</SPAN> </SPAN></SPAN></SPAN>الشـيء</SPAN></SPAN> </SPAN></SPAN></SPAN>A</SPAN> B</SPAN> </SPAN></SPAN></SPAN>فـــي بؤرة الشيء أي</SPAN> </SPAN></SPAN></SPAN>
</SPAN>OA=f=OF</SPAN> </SPAN>OA=4cm</SPAN>
</SPAN></SPAN>
</SPAN>
ممـــــيزات</SPAN></SPAN> </SPAN></SPAN></SPAN>الصورة تتكون فــــــــيما لا نهـاية لأن الأشعــة</SPAN> </SPAN></SPAN></SPAN>المنبثقة عن العدسة</SPAN>
متوازية</SPAN></SPAN> </SPAN></SPAN>.</SPAN></SPAN> الصورة</SPAN> </SPAN></SPAN></SPAN>A’ B</SPAN>’</SPAN> </SPAN></SPAN></SPAN>حــــــقيقية</SPAN></SPAN> </SPAN></SPAN></SPAN></SPAN>و</SPAN></SPAN> </SPAN></SPAN></SPAN>مقلوبة</SPAN> </SPAN></SPAN>.</SPAN>
</SPAN>
</SPAN>
</SPAN></SPAN>2</SPAN> | الحـالة الثـانية</SPAN> </SPAN></SPAN></SPAN></SPAN> | نضع الشـيء</SPAN> </SPAN></SPAN></SPAN>A</SPAN> B</SPAN> </SPAN></SPAN></SPAN>على مسافة</SPAN> </SPAN></SPAN></SPAN>أصغر</SPAN></SPAN> </SPAN></SPAN></SPAN>من المسافة البؤرية</SPAN> OA= 3 cm</SPAN> </SPAN></SPAN></SPAN>OA </SPAN></SPAN></SPAN>AB=1cm</SPAN> </SPAN></SPAN></SPAN></SPAN> | </SPAN></SPAN> |
</SPAN>
</SPAN>مـا هي</SPAN> </SPAN></SPAN></SPAN>مميزات</SPAN></SPAN> </SPAN></SPAN></SPAN></SPAN>الصورة</SPAN></SPAN> </SPAN></SPAN></SPAN>المحصل عليهــــــا</SPAN> </SPAN></SPAN></SPAN>’</SPAN> A’ B</SPAN></SPAN> </SPAN></SPAN>؟ ق</SPAN> ـارن بين الشيء و</SPAN> </SPAN></SPAN></SPAN>الصورة</SPAN></SPAN> </SPAN></SPAN>.</SPAN></SPAN> ق</SPAN> س المسافة بين العدسة</SPAN> </SPAN></SPAN></SPAN>والصورة</SPAN></SPAN> </SPAN></SPAN>.</SPAN></SPAN>
</SPAN></SPAN>ملاحظات</SPAN></SPAN>
·</SPAN> </SPAN>الأشعة</SPAN> </SPAN></SPAN></SPAN>متفرقة</SPAN></SPAN> </SPAN></SPAN>.</SPAN></SPAN>
·</SPAN> </SPAN>لا تتكون صـورة حقيقية على الشاشة</SPAN> </SPAN></SPAN>.</SPAN>
·</SPAN> </SPAN>. </SPAN>الصورة المحصل عليها أكبر من</SPAN> </SPAN></SPAN></SPAN>الشيء</SPAN></SPAN> </SPAN></SPAN>’</SPAN></SPAN></SPAN> A’</SPAN></SPAN> B</SPAN></SPAN> </SPAN></SPAN></SPAN></SPAN></SPAN>A B<</SPAN> </SPAN></SPAN></SPAN>
·</SPAN> </SPAN>تتكون الصورة من جهة الشيء</SPAN> </SPAN></SPAN>. </SPAN>
·</SPAN> </SPAN>تبعدالصورة</SPAN></SPAN> </SPAN></SPAN></SPAN>عن العدسة بمسافة أكبر</SPAN> </SPAN></SPAN></SPAN>من بعد الشيء عن العدسة</SPAN> </SPAN></SPAN></SPAN></SPAN></SPAN></SPAN>OA