G - Physics – 02 – B
Patent
G - Physics
02
B
G02B 3/14 (2006.01) G02B 26/00 (2006.01)
Patent
CA 2627113
The invention relates to a variable focus lens (10), comprising a rigid ring (22), a flexible membrane (20) attached to the front surface of the ring, a rigid transparent front cover (40), attached to the flexible membrane (50), and a rigid rear cover (20) on the rear surface of the ring (22). A cavity (60) is formed between the flexible membrane (50) and the rear cover (20), and the cavity is filled with a liquid. The amount of liquid in the cavity can be varied to vary the curvature of the flexible membrane and so vary the optical characteristics of the lens. The rear cover can be integral with the ring, or formed separately. Further, a second flexible membrane can be positioned between the rear cover and the ring. The various parts of the lens can be held together by adhesive.
L'invention concerne une lentille de focalisation variable (10) qui comprend une bague rigide (22), une membrane flexible (20) fixée à la surface frontale de la bague, un couvercle frontal transparent rigide (40) fixé à la membrane flexible (50) et un couvercle arrière rigide (20) disposé sur la surface arrière de la bague (22). Une cavité (60) formée entre la membrane flexible (50) et le couvercle arrière (20) est remplie d'un liquide. La quantité de liquide dans la cavité peut être modifiée afin de modifier la courbure de la membrane flexible et, par conséquent, les caractéristiques optiques de la lentille. Le couvercle arrière peut être solidaire de la bague ou séparé de celle-ci. De plus, une seconde membrane flexible peut être disposée entre le couvercle arrière et la bague. Les diverses parties de la lentille peuvent être maintenues ensemble à l'aide d'un adhésif.
David Silver Joshua
Miksovsky Chris
Newbery Miranda
Robertson Andrew
Fetherstonhaugh & Co.
J. & J. Technologies Limited
LandOfFree
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