Gentex Corporation

Cmc Electronics Inc

Todd W Ashcraft

Robert B Atac

Richard Nicholas Pfisterer

Timothy G Allard

Kenneth Scott Ellis

Joseph J Fontanella

Mark J Tremback

James Risboskin

A system for aligning a plurality of high-precision lenses in a lens train. Each of the lenses has at least two alignment tabs disposed around the perimeter of the lens. The lenses are aligned by placing the lenses in a jig having a plurality of high-precision alignment blocks. The lenses are attached to a lower-precision shroud, having slots that receive the alignment tabs. A gap-filling adhesive is used to provide a high-precision fit for the lenses in the shroud.

Apparatus and method for making and assembling a multi-lens optical device

A common lens HMD is shown and described. The use of a common lens in a biocular or binocular helmet mounted display (HMD) system provides a means to manipulate light rays from an image(s) which are traveling from two or more separate upstream optics trains to the helmet visor and onward to each eye, with fields of view which overlap at the midpoint of the visor. The common lens changes the optical paths of each individual ray going to a single eye, and changes the corresponding ray traveling to the other eye in a mirrored fashion (i.e. with the opposite component in the Left/Right direction).

Common lens helmet mounted display

A light source includes at least one optical fiber having a length and first and second ends and at least one electromagnetic wave source disposed along at least a portion of the length of the fiber for transmitting electromagnetic waves through a side surface of the fiber. A reflective surface is disposed at the first end of the fiber for directing light generated within the fiber toward the second end. A heads-up display can make effective use of the light source.

Fiber optic light source for display devices

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Aurora, IL, United States of America

Todd W Ashcraft