Two mirror scanning relay optics
AssigneeMagic Leap, Inc.
InventorsRoss Peter Stanley, Eric Julian Tremblay, Philippe De Gol
Life of this patent
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Abstract
An optical projection system includes a source of collimated light, a first microelectromechanical system mirror positioned to receive collimated light from the source, and an optical relay system positioned to receive collimated light from the first microelectromechanical system mirror. The optical relay system includes a single-pass relay having a first component, a second component, and a third component. The optical projection system also includes a second microelectromechanical system mirror positioned to receive collimated light from the optical relay system and an eyepiece positioned to receive light reflected from the second microelectromechanical system mirror.
Claims18
An optical projection system comprising:
- a source of collimated light emitting projection light;
- a first microelectromechanical system mirror positioned to receive the projection light from the source, the first microelectromechanical system mirror having a first scan axis, and the first microelectromechanical system mirror configured to reflect the projection light from the source along a first range of propagation directions about the first scan axis;
- an optical relay system positioned to receive the projection light from the first microelectromechanical system mirror along the first range of propagation directions about the first scan axis and direct reflected the projection light, wherein the optical relay system consisting of, in order of propagation of the projection light, a first mirror, a second mirror, and a third mirror having a different radius of curvature from the first mirror and the second mirror;
- a second microelectromechanical system mirror positioned to receive the projection light from the optical relay system, the second microelectromechanical system mirror having a second scan axis oriented perpendicular to the first scan axis, and the second microelectromechanical system mirror configured to reflect the projection light from the optical relay systems at a second range of propagation directions about the second scan axis;
- and
- an eyepiece positioned to receive light reflected from the second microelectromechanical system mirror.
Dependencies are inferred from the claim text.