Abstract: Briefly, in accordance with one or more embodiments, an optical relay for a head up display, the optical relay comprises a glare trap having angularly selectivity by being capable of reflecting light having an angle of incidence greater than a first angle, and being capable of transmitting light having an angle of incidence less than a second angle, and a first optic arranged to receive light reflected off the glare trap at an angle of incidence greater than the first angle, and to direct light through the glare trap at an angle of incidence less than the second angle to exit the glare trap.

Abstract: An optical relay (500) includes a glare trap (512) that in one embodiment has one or more surfaces configured to reflect light impinging the surface (550) at an angle less than a first angle (722) relative to a normal line (710), and to transmit light impinging the surface (550) at an angle greater than a second angle (723) relative to the normal line (710). In other embodiments, the glare trap (512) reflects light impinging at an angle greater than a first angle and transmit light impinging at an angle that is less than a second angle. The separation between the first angle (722) and second angle (723) can be on the order of 20 degrees or more, but this angle can be reduced or eliminated when polarized light is used within the optical relay (500).

Abstract: A head-worn video display includes a compact light source including at least two laser diodes. A MEMS scanner scans a composite beam from the two light sources across a viewing screen. The viewing screen is operable to diffuse light from one laser diode and convert light from a second laser to a different wavelength. Light from the viewing screen is shaped for viewing by a viewer's eye.

Abstract: A display apparatus includes an IR or other light source that produces light at a first wavelength that is modulated according to a desired image. The modulated light is then applied to a phosphor that converts the light to a second wavelength in the visible range. In one embodiment, the image source is a scanned light beam display that scans an IR light beam onto an image intensifier tube of a night vision goggle. In other embodiments, the image source is a LCD having an IR back light or a FED panel that emits electrons directly into a microchannel accelerator plate of the night vision goggles. In still another embodiment, the image source emits visible or ultraviolet light onto a phosphor that emits light of a different wavelength in response.

Abstract: A display apparatus includes an image source, an eye position detector, and a combiner, that are aligned to a user's eye. The eye position detector monitors light reflected from the user's eye to identify the pupil position. If light from the image source becomes misaligned with respect to the pupil, a physical positioning mechanism adjusts the relative positions of the image source and the beam combiner so that light from the image source is translated relative to the pupil, thereby realigning the display to the pupil. In one embodiment, the positioner is a piezoelectric positioner and in other embodiments, the positioner is a servomechanism or a shape memory alloy.

Abstract: A display apparatus includes an IR or other light source that produces light at a first wavelength that is modulated according to a desired image. The modulated light is then applied to a phosphor that converts the light to a second wavelength in the visible range. In one embodiment, the image source is a scanned light beam display that scans an IR light beam onto an image intensifier tube of a night vision goggle. In other embodiments, the image source is a LCD having an IR back light or a FED panel that emits electrons directly into a microchannel accelerator plate of the night vision goggles. In still another embodiment, the image source emits visible or ultraviolet light onto a phosphor that emits light of a different wavelength in response.

Abstract: A display apparatus includes an IR or other light source that produces light at a first wavelength that is modulated according to a desired image. The modulated light is then applied to a phosphor that converts the light to a second wavelength in the visible range. In one embodiment, the image source is a scanned light beam display that scans an IR light beam onto an image intensifier tube of a night vision goggle. In other embodiments, the image source is a LCD having an IR back light or a FED panel that emits electrons directly into a microchannel accelerator plate of the night vision goggles. In still another embodiment, the image source emits visible or ultraviolet light onto a phosphor that emits light of a different wavelength in response.

Abstract: A display apparatus includes an image source, an eye position detector, and a combiner, that are aligned to a user's eye. The eye position detector monitors light reflected from the user's eye to identify the pupil position. If light from the image source becomes misaligned with respect to the pupil, a physical positioning mechanism adjusts the relative positions of the image source and the beam combiner so that light from the image source is translated relative to the pupil, thereby realigning the display to the pupil. In one embodiment, the positioner is a piezoelectric positioner and in other embodiments, the positioner is a servomechanism or a shape memory alloy.

Abstract: A display apparatus includes an image source, an eye position detector, and a combiner, that are aligned to a user's eye. The eye position detector monitors light reflected from the user's eye to identify the pupil position. If light from the image source becomes misaligned with respect to the pupil, a physical positioning mechanism adjusts the relative positions of the image source and the beam combiner so that light from the image source is translated relative to the pupil, thereby realigning the display to the pupil. In one embodiment, the positioner is a piezoelectric positioner and in other embodiments, the positioner is a servomechanism or a shape memory alloy.