Head mounted display with micro-display alignment mechanism
First Claim
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; and
a 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.
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0 Petitions
Accused Products
Abstract
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.
46 Citations
18 Claims
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1. A head mounted display device comprising:
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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; and a 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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A head mounted display device comprising:
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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, wherein the group of optical elements comprise; a first mirror with reflective optical surface facing in a substantially rearward direction along the Z-axis; a second mirror with a reflective optical surface facing in a substantially forward direction along the Z-axis; and a third mirror with reflective optical surface facing in a substantially rearward direction along the Z-axis; 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, 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. - View Dependent Claims (13)
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14. A micro-display alignment mechanism configured to be mounted to a structural frame of a head mounted display device, the 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, the micro-display alignment mechanism comprising:
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a micro-display holder configured to hold a micro-display; and a 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 to align and control a reflectively guided light ray bundle from the micro-display to a user'"'"'s eye by positioning the micro-display along the X and Z axes, wherein the micro-display holder includes a tab that is received into a slot in the carriage wherein the tab and slot cooperate to restrain the motion to the X and Z axes. - View Dependent Claims (15, 16, 17)
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18. A method of assembling a micro-display mechanism configured to be mounted to a structural frame of a head mounted display device, the 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, the method comprising:
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attaching a micro-display to a first portion of a micro-display holder, assembling a second portion of the micro-display holder to a 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 to align and control a reflectively guided light ray bundle from the micro-display to a user'"'"'s eye by positioning the micro-display along the X and Z axes, wherein the micro-display holder includes a tab that is received into a slot in the carriage wherein the tab and slot cooperate to restrain the motion to the X and Z axes; providing a X-gear including a user-manipulation portion attached to a shaft; inserting the X-gear shaft into a first opening in the carriage; providing a Z-gear including a user-manipulation portion attached to a shaft; and inserting the Z-gear shaft into a second opening in the carriage.
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Specification