Aspheric Fluid Filled Lens Optic
AssigneeAdlens Beacon, Inc.
InventorsAmitava GUPTA, Urban Schnell, Karim Haroud, Hans Jaeger
Life of this patent
Estimating the term…
Abstract
A non-round fluid lens assembly includes a non-round rigid lens and a flexible membrane attached to the non-round rigid lens, such that a cavity is formed between the non-round rigid lens and the flexible membrane. A reservoir in fluid communication with the cavity allows a fluid to be transferred into and out of the cavity so as to change the optical power of the fluid lens assembly. In an embodiment, a front surface of the non-round rigid lens is aspheric. Additionally or alternatively, a thickness of the flexible membrane may be contoured so that it changes shape in a spheric manner when fluid is transferred between the cavity and the reservoir.
Claims22
A fluid lens assembly, comprising:
- a non-round rigid lens having a back surface and an aspheric front surface;
- a flexible membrane coupled to the back surface of the non-round rigid lens, such that a cavity is formed between a front surface of the flexible membrane and the back surface of the rigid lens;
- and
- a reservoir in fluid communication with the cavity between the front surface of the flexible membrane and the back surface of the non-round rigid lens, such that a fluid is transferable between the reservoir and the cavity to change the optical power of the fluid lens assembly,
- wherein the aspheric front surface at least partially reduces an optical error caused by fluid located in the cavity.
A fluid lens assembly, comprising:
- a non-round rigid lens having a back surface and a front surface;
- a flexible membrane coupled to the back surface of the non-round rigid lens that forms a cavity between a front surface of the flexible membrane and the back surface of the rigid lens, wherein the flexible membrane is not uniform in thickness;
- and
- a reservoir in fluid communication with the cavity between the front surface of the flexible membrane and the back surface of the non-round rigid lens, such that a fluid is transferable between the reservoir and the cavity.
A fluid lens assembly, comprising:
- a non-round rigid lens having a back surface and a front surface;
- a flexible membrane coupled to the back surface of the non-round rigid lens that forms a cavity between a front surface of the flexible membrane and the back surface of the rigid lens, wherein the flexible membrane is configured to change shape at an elliptical portion of the flexible membrane differently from a portion of the flexible membrane outside the elliptical portion when fluid is transferred between the reservoir and the cavity, the elliptical portion of the flexible membrane being smaller than the entire flexible membrane;
- and
- a reservoir in fluid communication with the cavity between the front surface of the flexible membrane and the back surface of the non-round rigid lens, such that a fluid is transferable between the reservoir and the cavity.
Dependencies are inferred from the claim text.