Abstract: An extended field-of-view near-to-eye display system provides for AR/MR image viewing over about a 180° FOV. The display system may include a multiplicity of display panels per eye of a user and may include both high- and low-resolution display capabilities. The high-resolution displays may be positioned in front of the user's eyes in their primary visual field while the low-resolution displays may be positioned so as to be seen by the user's peripheral vision. The low-resolution displays provide cueing information to the user out to the limit of visual perception (for each eye), placing encoded light and movement in the periphery of the user's vision for enhanced situational awareness.

Abstract: A sight or aiming device is provided that can be attached to a firearm or other device with minimal visual and weight impacts and includes a light source, a pattern producing element, and an imageguide optical combiner. The user may have access to mechanical adjustments to “zero” the sight to the barrel of the instrument and to correct an aim point for windage and elevation. The orientation and construction of the sight facilitates use with a holster. The sight has an on-axis (or in-line) optical design, and thus the illumination of a reticle by the light source and its path entering the on-axis imageguide holographic combiner is approximately parallel to the boresight of the instrument that the sight is attached to.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of fabricating a multi-tone amplitude photomask includes providing a mask substrate. The method includes providing a stepped pattern in at least one layer of material on a surface of the mask substrate. The stepped pattern includes at least two steps and at least three levels. Each level of the stepped pattern provides a different intensity of light when a light source shines light on the stepped pattern.

Abstract: A method of patterning a workpiece comprises providing a source of illumination, a workpiece, a holographic mask and an optical element. The optical element is positioned in the optical path between the source of illumination and the workpiece. The holographic mask is positioned in the optical path between between the source of illumination and the optical element. The holographic mask is illuminated with the source of illumination to form a first real image. The method includes projecting the first real image with the optical element to form a second real image on at least one from the group consisting of the workpiece, a surface of the workpiece, and a location near a surface of said workpiece. A method of patterning a workpiece also includes providing a source of illumination, a holographic mask and a workpiece. The holographic mask is illuminated with the source of illumination to form a three-dimensional real image on the workpiece.

Abstract: A device, such as a heads up display, includes equipment for generating a virtual image in the field of view of an observer. The equipment includes at least one light source having a wavelength range less than 2 nm. The light source can be a low pressure gas discharge lamp. The device also includes a holographic optical element that provides a virtual image. The device also includes an image source, such as a mask or an LCD. In one embodiment the holographic optical element combines an image on a display with an ambient image. The holographic element provides multiple colors undistorted in a virtual image appearing to the observer as converging from the same distance.

Abstract: A pipe fitting includes a polymeric body molded into and fixedly connected to a metallic body, so that the metallic body extends around the polymeric body. The polymeric body extends around and is contiguous with a passageway of the pipe fitting, and at least partially defines a first opening of the passageway that is for being mated to a polymeric pipe. The metallic body extends around and is contiguous with the passageway, and at least partially defines a second opening of the passageway that is for being mated to a metallic pipe.

Abstract: A device, such as a heads up display, includes equipment for generating a virtual image in the field of view of an observer. The equipment includes at least one light source having a wavelength range less than 2 nm. The light source can be a low pressure gas discharge lamp. The device also includes a holographic optical element that provides a virtual image. The device also includes an image source, such as a mask or an LCD. In one embodiment the holographic optical element combines an image on a display with an ambient image. The holographic element provides multiple colors undistorted in a virtual image appearing to the observer as converging from the same distance.