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A periscope is an instrument for observation over, around or through an object, obstacle or condition that prevents direct line-of-sight observation from an observer's current position. [ 1 ] [ 2 ] In its simplest form, it consists of an outer case with mirrors at each end set parallel to each other at a 45° angle.
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Schematic of a conventional and a periscope zoom lens Xiaomi Mi 10 Ultra with a 5x optical zoom periscope lens camera, recognizable by the rectangular shape of its lens. A periscope lens, sometimes called a folded lens, is a mechanical assembly of lens elements that uses a prism or mirror to redirect the light through the lenses with a 90° angle to the optical axis, as in a periscope.
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If you have a muffin tin, cupcake liners and a few basic pantry staples, then you and your kids are steps away from a fun-filled afternoon making homemade peanut butter cups. In a large mixing ...
The 18th-century overhead version in tents used mirrors inside a kind of periscope on the top of the tent. [ 8 ] The box-type camera obscura often has an angled mirror projecting an upright image onto tracing paper placed on its glass top.
Sophia Grace Brownlee is sharing her daughter's name! On Sunday, Jan. 19, the British influencer, 21, shared a carousel of photos on Instagram as she revealed her 3-week-old baby daughter's name ...