Photo-tunable liquid microlens

Details Photo-tunable liquid microlens Photo-tunable liquid microlens

G - Physics

02

B

G02B 3/12 (2006.01) G02B 3/14 (2006.01) G02B 26/02 (2006.01) G02F 1/29 (2006.01) G02B 6/42 (2006.01) G02F 1/133 (2006.01)

Patent

CA 2399179

An apparatus comprising a tunable liquid microlens that includes a transparent supporting layer and a transparent photoresponsive layer disposed on a first surface of the supporting layer. A droplet of a transparent liquid is disposed on the photoresponsive layer. The photoresponsive layer separates the supporting layer and the droplet. At least a portion of the photoresponsive layer that contacts the droplet may be selectively irradiated by at least one light source such that a contact angle between the droplet and the photoresponsive layer may be varied and the droplet may be repositioned along the photoresponsive layer. In this manner, at least one of a focal length and a lateral position of a focal spot of the microlens may be adjusted directly by irradiation with a light beam.

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