Viewing apparatus and method for projecting a light signal
AssigneeGensight Biologics
InventorCharlie Galle
Life of this patent
Estimating the term…
Abstract
A viewing apparatus is provided that has a first optical line having: a projecting system adapted to project a light signal on a first area of the retina of an eye of a wearer of the viewing apparatus, a light signal generator generating the light signal to be projected, and a waveguide having an input coupler and an exit coupler, the waveguide being adapted to convey light from the input coupler to the exit coupler, and optionally a second optical line having an optical system adapted to project a light signal of the environment on a second area of the retina of the eye of the wearer, the optical system comprising a part of the waveguide.
Claims11
A viewing apparatus comprising:
- (a) a projecting system adapted to project a first light signal on a first area of the retina of an eye of a wearer of the viewing apparatus,
- (b) a light signal generator generating the first light signal to be projected, and
- (c) a waveguide comprising an input coupler and an exit coupler, the waveguide being adapted to convey light from the input coupler to the exit coupler;
- wherein the viewing apparatus comprises two optical lines, a first optical line and a second optical line, the first optical line comprising a set of optical elements along the first optical line that link a source of light signal to an area of the eye of the wearer, and
- wherein:
- (i) the first optical line is a folded line;
- (ii) the light signal generator comprises a light source, a collimating lens, a total internal reflection prism, a digital micromirror device and a projecting lens;
- (iii) the second optical line comprises an optical system adapted to project a light signal of the environment on a second area of the retina of the eye of the wearer,
- (iv) the waveguide is translucent or transparent,
- (v) the first and second optical lines are arranged so that the intersection between the first area and the second area is void,
- (vi) the second optical line is an unfolded line, and
- (vii) the second optical line is parallel to the gaze direction of the eye of the wearer.
A method for projecting a light signal in an eye of the wearer of a viewing apparatus comprising:
- a projecting system adapted to project a first light signal on a first area of the retina of an eye of a wearer of the viewing apparatus,
- a light signal generator generating the first light signal to be projected, and
- a waveguide comprising an input coupler and an exit coupler, the waveguide being adapted to convey light from the input coupler to the exit coupler
- wherein the viewing apparatus comprises two optical lines, a first optical line and a second optical line, the first optical line comprising a set of optical elements along the first optical line that link a source of light signal to an area of the eye of the wearer,
- wherein:
- (i) the first optical line is a folded line;
- (ii) the light signal generator comprises a light source, a collimating lens, a total internal reflection prism, a digital micromirror device and a projecting lens;
- (iii) the second optical line comprises an optical system adapted to project a light signal of the environment on a second area of the retina of the eye of the wearer,
- (iv) the waveguide is translucent or transparent,
- (v) the first and second optical lines are arranged so that the intersection between the first area and the second area is void,
- (vi) the second optical line is an unfolded line, and
- (vii) the second optical line is parallel to the gaze direction of the eye of the wearer;
- and
- wherein the method further comprises simultaneously projecting a light signal with the first optical line and projecting an environment light signal with the second optical line.
Dependencies are inferred from the claim text.