US 11,852,889 B2
Temperature drift compensation for liquid lenses
Roman Patscheider, Winterthur (CH); David Niederer, Küttigen (CH); Pit Gebbers, Glattbrugg (CH); Daniel Borer, Schlieren (CH); Christopher Laning, Windisch (CH); and Stephan Smolka, Zürich (CH)
Filed by OPTOTUNE CONSUMER AG, Dietikon (CH)
Filed on Dec. 26, 2021, as Appl. No. 17/561,958.
Application 17/561,958 is a division of application No. 15/737,287, granted, now 11,209,576, previously published as PCT/EP2016/064098, filed on Jun. 17, 2016.
Claims priority of application No. PCT/EP2016/064098 (WO), filed on Jun. 17, 2016.
Prior Publication US 2022/0155552 A1, May 19, 2022
Int. Cl. G02B 5/06 (2006.01); G02B 7/02 (2021.01); G02B 26/00 (2006.01); G02B 3/14 (2006.01)
CPC G02B 7/028 (2013.01) [G02B 3/14 (2013.01); G02B 5/06 (2013.01); G02B 26/004 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An optical device (10), comprising:
a first and a second transparent cover element (800, 801) facing each other,
a lateral wall (802) via which said cover elements (800, 801) are connected to each other such that a container (803) is formed,
wherein said container (803) is filled with a transparent liquid (804) comprising a temperature-dependent refractive index, characterized in that the optical device (10) comprises three pin assemblies (900) that are designed to tilt the first cover element (800) with respect to the second cover element (801), so as to form the container (803) into a variable prism for refracting light (U) passing through the container (803), wherein at least two of said pin assemblies (900) are adjustable for tilting said first cover element (800), and wherein said at least two pin assemblies (900) are configured to undergo a thermal expansion so as to compensate a thermal drift of the refractive index (RI) of the liquid (804) in order to reduce an unwanted thermally induced change of said refracting of said light (L′).