Head mounted display with micro-display alignment mechanism

摘要

A head mounted display device includes a structural frame arranged generally along a X-axis and a Y-axis for viewing along a Z-axis, the X, Y, and Z axes being mutually perpendicular. A micro-display is coupled to the structural frame, and configured to project visual content in a substantially forward direction along the Z-axis away from a user. A group of one or more optical elements with reflective optical surfaces is coupled to the structural frame and respectively positioned on a front side of the micro-display to reflectively guide a light ray bundle from the micro-display to a user's eye. A micro-display alignment mechanism is mounted to the structural frame and configured to align and control the reflectively guided light ray bundle from the micro-display to the user's eye by positioning the micro-display along the X and Z axes.

主权项

1. A head mounted display device comprising:
a structural frame arranged generally along a X-axis and a Y-axis for viewing along a Z-axis, the X, Y, and Z axes being mutually perpendicular; a micro-display coupled to the structural frame, and configured to project visual content in a substantially forward direction along the Z-axis away from a user, a group of one or more optical elements with reflective optical surfaces coupled to the structural frame and respectively positioned on a front side of the micro-display to reflectively guide a light ray bundle from the micro-display to a user's eye; and a micro-display alignment mechanism mounted to the structural frame and configured to align and control the reflectively guided light ray bundle from the micro-display to the user's eye by positioning the micro-display along the X and Z axes, the micro-display alignment mechanism comprising:
a micro-display holder configured to hold the micro-display; anda carriage configured to couple to and constrain motion of the micro-display holder to motion along the X and Z axes and restraining rotational motion of the micro-display holder about the X and Z axes,wherein the micro-display alignment mechanism fits into an envelope having dimensions of less than 40 mm in X, less than 30 mm in Y, and less than 20 mm in Z.