Intraocular laser projection system
An implant that is to be implanted inside the eye of a person contains a laser projection scanning subsystem that is configured to “paint” an image of the scene that is before the person, on the retina. The image of the scene may be acquired by a digital camera that is attached to a head unit that may be worn by the person, and then transmitted to the implant. Other aspects are also described and claimed.
1 . An intraocular laser projection system comprising:
an implant, wherein the implant comprises:
a laser configured to produce a laser beam;
a collimator configured to collimate the laser beam;
a lens configured to receive the laser beam from the collimator and configured to focus the laser beam into a laser spot on a retina of an eye when the implant is inside the eye; and
a MEMS scanner configured to move the laser spot over an area of the retina when the implant is inside the eye.
2 . The system of claim 1 wherein the implant further comprises:
a wireless data receiver to wirelessly receive an image; and
control electronics coupled to control the laser and the MEMS scanner based on the image.
3 . The system of claim 1 wherein the laser comprises a plurality of laser diodes and respective dichroic filters.
4 . The system of claim 1 wherein the implant comprises an implant housing having integrated therein the laser, the collimator, the lens, and the MEMS scanner.
5 . The system of claim 4 wherein the implant is configured to be fit into a lens capsule, an anterior chamber, or a vitreous humor of the eye.
6 . The system of claim 1 wherein the MEMS scanner is to move the laser spot by raster scanning or by Lissajous scanning.
7 . The system of claim 1 wherein intensity of the laser beam is modulated to be synchronized with motion of a mirror in the MEMS scanner.
8 . The system of claim 1 wherein the implant further comprises a charging antenna to receive a wireless power signal.
9 . The system of claim 1 further comprising a head unit, wherein the head unit comprises:
a camera that captures an image, the camera being pointed to a direction of a gaze of a wearer of the head unit; and
a wireless data transmitter configured to wirelessly transmit the image.
10 . The system of claim 1 wherein the implant is configured to be fit into a lens capsule of the eye.
11 . The system of claim 1 wherein the implant is configured to be fit into an anterior chamber of the eye.
12 . The system of claim 1 wherein the implant is configured to be fit into a vitreous humor of the eye.
13 . An intraocular laser projection implant comprising:
a laser configured to produce a laser beam;
a collimator configured to collimate the laser beam;
a lens configured to focus the laser beam into a laser spot on a retina of an eye when the intraocular laser projection implant is inside the eye; and
a MEMS scanner configured to move the laser spot over an area of the retina when the intraocular laser projection implant is inside the eye;
a wireless data receiver configured to wirelessly receive an image; and
control electronics coupled to control the laser and the MEMS scanner based on the image.
14 . The intraocular laser projection implant of claim 13 further comprising an implant housing having integrated therein the laser, the collimator, the lens, the MEMS scanner, the wireless data receiver, and the control electronics.
15 . The intraocular laser projection implant of claim 13 wherein the MEMS scanner is configured to move the laser spot by raster scanning or by Lissajous scanning.
16 . The intraocular laser projection implant of claim 13 wherein the control electronics are configured to modulate intensity of the laser beam, wherein the modulated intensity is synchronized with motion of a mirror in the MEMS scanner and with the image.
17 . An intraocular laser projection system comprising:
an implant, wherein the implant comprises:
a laser configured to produce a laser beam;
a collimator configured to collimate the laser beam;
a lens configured to focus the laser beam into a laser spot on a retina of an eye when the implant is inside the eye; and
a MEMS scanner configured to move the laser spot over an area of the retina when the implant is inside the eye; and
a head unit, wherein the head unit comprises:
a camera that captures an image, the camera being pointed to a direction of a gaze of a wearer of the head unit; and
a wireless data transmitter configured to wirelessly transmit the image.
18 . The system of claim 17 wherein the implant further comprises a charging antenna configured to receive a wireless power signal transmitted by the head unit.
19 . The system of claim 18 wherein the implant is shaped to fit into a lens capsule of the eye.
20 . The system of claim 18 wherein the implant is shaped to fit into an anterior chamber of the eye.