Patent ID: 11940628
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 13:
14. At a display device, a method of forming an image, the method comprising:
emitting, from a light source, illumination light along an illumination path, the illumination light used to achieve illumination of a spatial light modulator;
at the spatial light modulator, modulating the illumination light and emitting the modulated illumination light as image light along an imaging path, wherein at least a portion of the illumination path and at least a portion of the imaging path extend through a common light path region extending along an optical axis of the display device; and
two or more optical elements positioned within the common light path region, (1) guiding the illumination light as the illumination light travels through the common light path region toward the spatial light modulator, and (2) shaping the image light as the image light travels through the common light path region, the two or more optical elements including at least one element to transmit the illumination light prior to modulation by the spatial light modulator, and a series of two or more lenses to transmit the image light after modulation by the spatial light modulator, the two or more lenses including a partially cut lens positioned within the common light path region.