G - Physics
02
C
G02C 7/08 (2006.01) G02C 7/02 (2006.01)
Patent
CA 2480323
A viewing device comprises a pair of substantially inflexible nesting lenses. One of the lenses has a divergent refracting surface and the other has a convergent refracting surface. The device further comprises means for moving at least one of the lenses in a direction substantially normal to the refracting surfaces so as to create a cleft of changing width between facing surfaces of the lenses.
L'invention concerne un dispositif de vue comprenant une paire de lentilles emboîtées sensiblement inflexibles. Une de ces lentilles présente une surface de réfraction divergeante et l'autre présente une surface de réfraction convergeante. Le dispositif comprend également des moyens permettant de déplacer au moins une des lentilles dans un sens sensiblement normal par rapport aux surfaces de réfraction, de manière à créer une fente de largeur variable entre les surfaces avant des lentilles.
Bereskin & Parr Llp
Meyer Paul
LandOfFree
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