Abstract: A compact optical system with improved contrast for a head-worn computer includes a light source including a lens with positive optical power positioned within the head-worn computer and adapted to project converging illuminating light towards a partially reflective partially transmissive surface wherein the illuminating light forms a spot with an area smaller than the light source on the partially reflective partially transmissive surface prior to being reflected as diverging illuminating light that passes through a field lens and towards a reflective display. The illuminating light reflects off a surface of the reflective display, forming diverging image light which is transmitted through the field lens and then through the partially reflective partially transmissive surface to a lower display optical system adapted to present the image light to an eye of a user wearing the head-worn computer.

Abstract: Aspects of the present invention relate to providing see-through computer display optics.

Abstract: Aspects of the present invention relate to methods and systems for the see-through computer display systems with a wide field of view.

Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith. Aspects further relate to determining health conditions of the user based on eye imaging technologies.

Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith.

Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith. Aspects further relate to determining health conditions of the user based on eye imaging technologies.

Abstract: Aspects of the present disclosure relate to head worn computing lighting systems and stray light control.

Abstract: Aspects of the present invention relate to external user interfaces used in connection with head worn computers (HWC). Embodiments relate to an external user interface that has a physical form intended to be hand held. The hand held user interface may be in the form similar to that of a writing instrument, such as a pen. In embodiments, the hand held user interface includes technologies relating to writing surface tip pressure monitoring, lens configurations setting a predetermined imaging distance, user interface software mode selection, quick software application launching, and other interface technologies.

Abstract: A compact head-worn display with multiply folded optics providing displayed images overlaid onto a see-through view of a surrounding environment includes a solid prism of a first material with an angled planar surface to fold an optical axis and one or more surfaces that provide optical power, one or more additional lens elements with optical power made of a second material that is different from the material of the solid prism, an image source that provides image light associated with the displayed images, a combiner that folds the optical axis and directs the image light toward a user's eye and wherein the multiply folded optics provide a more compact head-worn display and the first and second materials are selected to reduce a lateral color in the displayed images.

Abstract: Aspects of the present disclosure relate to shadowing objects displayed in head worn computing.

Abstract: Aspects of the present invention relate to providing see-through computer display with improved optics.

Abstract: Aspects of the present disclosure relate a head-worn computer with a see-through display wherein computer content is presented to a user wearing the head-worn computer and through which the user sees a surrounding environment, wherein the see-through display generates image light comprised of narrow bandwidths of red, green and blue light and wherein the see-through display further includes a tristimulus notch mirror positioned to reflect the image light towards the user's eye, and wherein the tristimulus notch mirror reflects less than a full width half max of the red image light.

Abstract: Aspects of the present invention relate to temple and ear horn assemblies for head worn computers.

Abstract: Aspects of the present invention relate to methods and systems for imaging, recognizing, and tracking of a user's eye that is wearing a HWC. Aspects further relate to the processing of images reflected from the user's eye and controlling displayed content in accordance therewith.

Abstract: Embodiments include a head-worn computer, comprising: a removable lens, wherein the removable lens comprises an electrochromic layer adapted to transition between at least two states of transparency level dependent on an electrical condition applied to the electrochromatic layer; a variable-power magnetic-electrode mounted on the head-worn computer; and a magnetic element mounted in the removable lens, wherein the magnetic element is positioned behind the electrochromic layer and aligned to mate with the variable-power magnetic-electrode such that, when the lens is mounted, the variable-power magnetic-electrode and the magnetic element physically attract to one another making an electrical connection between the variable-power magnetic-electrode and an electrically conductive layer of the electrochromic layer.

Abstract: Aspects of the present invention relate presentation of digital content, in a see-through display, representing a known location in an environment proximate to a head worn computer.

Abstract: Aspects of the present disclosure relate to haptic feedback systems and methods for use in head-worn computing systems. A head worn computer includes a frame adapted to hold a computer display in front of a user's eye, a processor adapted to present digital content in the computer display and to produce a haptic signal in coordination with the digital content display, and a haptic system including a plurality of haptic segments, wherein each of the haptic segments is individually controlled in coordination with the haptic signal.

Abstract: Aspects of the present disclosure relate to visual presentation techniques for indicating a location in a head-worn computer using an avatar. A method may include receiving a location indicative of a human presence at a location in an obscured environment, establishing a virtual location marker in a position that is visually available to a person wearing a head-worn computing system, wherein the virtual marker provides an indication of the location in the obscured environment, and generating an avatar as a representation of the human presence and presenting the avatar in a field of view of the head-worn computing system, wherein the presentation of the avatar is positioned in the field of view by visually associating the avatar with the location marker such that the avatar appears to remain at the location marker location, as perceived by a person wearing the head-worn computing system, independent of the head-worn computing system's viewing angle.

Abstract: Aspects of the present invention relate to methods and systems for providing a high transmission see-through view of the environment while trapping escaping light from the display system. In embodiments, a camera system is also provided that is aligned with the display system to provide images of the environment in a viewing direction of the user.

Abstract: Aspects of the present invention relate to the stabilization of head-worn micro-Doppler antennas.