US 9,810,913 B2
Smart head-mounted projection system
Gerard Dirk Smits, Los Gatos, CA (US)
Filed by Gerard Dirk Smits, Los Gatos, CA (US)
Filed on Mar. 27, 2015, as Appl. No. 14/671,904.
Claims priority of provisional application 61/967,886, filed on Mar. 28, 2014.
Prior Publication US 2015/0278992 A1, Oct. 1, 2015
Int. Cl. G01C 3/08 (2006.01); G02B 27/22 (2006.01); G02B 5/124 (2006.01)
CPC G02B 27/2235 (2013.01) [G02B 5/124 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A system for enabling a user to view an image on a surface, comprising:
one or more projectors that project light for the image onto the surface;
a sensor that detects light reflected off the surface;
a plurality of first elements located on the surface, which border a display area on the surface, wherein each of the first elements reflect light projected from the one or more projectors to the sensor and at least a portion of this reflected light being non-visible to the user;
a plurality of second elements that are positioned within the border of the display area, wherein the plurality of second elements reflect light for the image from the one or more projectors to the user for viewing the image;
a plurality of third elements that are arranged as one or more fiduciary structures on the surface within the border area to reflect light projected from the one or more projectors to the sensor, wherein this reflected light provides spatial feedback for one or more locations within the display area; and
a processor that performs actions, including:
determining one or more characteristics of the border of the display area based on light reflected to the sensor from the plurality of first elements; and
modifying one or more parameters of the image that is projected onto the surface of the display area based on the one or more characteristics of the border of the display area, wherein the modified one or more parameters are employed to position the image inside the border of the display area.