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How to build a video projector using a phone and magnifying glass
Description
Building a simple home projector demonstrates how a magnifying glass can be used to project an image from a phone screen onto a wall. The process focuses on the principles of geometric optics, the focal length of the lens, and controlling the image focus by adjusting the distance between the device and the lens.
Original title
איך לבנות מקרן וידאו מטלפון וזכוכית מגדלת?
בניית מקרן ביתי פשוט מדגימה כיצד ניתן להשתמש בזכוכית מגדלת כדי להקרין תמונה ממסך הטלפון על הקיר. התהליך מתמקד בעקרונות של אופטיקה גיאומטרית, מרחק המוקד של העדשה ושליטה במיקוד התמונה על ידי שינוי המרחק בין המכשיר לעדשה.
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