US 12,259,599 B2
Shape changing optical device for ophthalmic testing devices
Roman Patscheider, Winterthur (CH); Manuel Aschwanden, Allenwinden (CH); David Andreas Niederer, Küttigen (CH); Chris Laning, Windisch (CH); and Aaron Gerratt, Zürich (CH)
Appl. No. 17/413,577
Filed by OPTOTUNE AG, Dietikon (CH)
PCT Filed Dec. 16, 2019, PCT No. PCT/EP2019/085453
§ 371(c)(1), (2) Date Jun. 14, 2021,
PCT Pub. No. WO2020/120806, PCT Pub. Date Jun. 18, 2020.
Claims priority of application No. 18212803 (EP), filed on Dec. 14, 2018.
Prior Publication US 2022/0066239 A1, Mar. 3, 2022
Int. Cl. G02B 3/14 (2006.01); G02B 26/00 (2006.01); G02C 7/08 (2006.01); A61B 3/036 (2006.01); A61B 3/103 (2006.01)
CPC G02C 7/085 (2013.01) [G02B 3/14 (2013.01); G02B 26/004 (2013.01); A61B 3/036 (2013.01); A61B 3/1035 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An optical device, comprising:
a container enclosing an internal space of the container, wherein the internal space is filled with a transparent liquid, and wherein the container comprises a transparent bottom and a transparent and elastically deformable membrane opposing said bottom such that the liquid is arranged between the membrane and the bottom,
a deformable annular lens shaping element connected to the membrane so that a circumferential edge of the deformable annular lens shaping element defines a central area of the membrane so that light can pass through the container via the central area and the bottom, wherein in a non-deformed state said edge lies in a plane, and
an adjustable spherical power and an adjustable cylindrical power, wherein for adapting the cylindrical power of the optical device, the deformable annular lens shaping element is configured to be bent out of said plane,
wherein the optical device comprises an actuator system that is configured to bend the deformable annular lens shaping element out of the plane in order to adjust the cylindrical power,
the actuator system is configured to displace a plurality of points of the deformable annular lens shaping element along an optical axis of the optical device to bend the deformable annular lens shaping element out of the plane in order to adjust the cylindrical power,
the actuator system comprises a plurality of actuators, wherein each actuator is configured to displace one of the points, and
each actuator comprises a mover that is movable towards the deformable annular lens shaping element along the optical axis of the optical device by means of the actuator, wherein each mover is configured to push against the associated point of the deformable annular lens shaping element via a point contact.