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Smart glasses
Smart glasses
auto change the focal length.
auto change the focal length.
How to change the focal length?
How to change the focal length?
First way : change the shape of glasses
First way : change the shape of glasses
The idea comes from the best structure for the reference : EYES.
New material of the lens:: flexible to change shape and not easily break.→ Liquid Lens
Second way: Liquid Crystal Lens
Second way: Liquid Crystal Lens
Different electric field
→ differ the arrangement of liquid crystal
→ change the refractive index and the focal length
Third way: Now has been used
Third way: Now has been used
Assemble two lens and preserve a middle area and fill the liquid in It .
change the volume or temperature → the density change then the refractive index and focal length
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