Tectus Corporation

Next Wave Optics Inc.

George Michael Mihalakis

Brian Elliot Lemoff

Michael West Wiemer

Gregory David Miller

Ronald S Maynard

Flint Orin Hamblin

An eye-mounted device includes a contact lens and an embedded imaging system. The front aperture of the imaging system faces away from the user's eye so that the image sensor in the imaging system detects imagery of a user's external environment. The optics for the imaging system has a folded optical path, which is advantageous for fitting the imaging system into the limited space within the contact lens. In one design, the optics for the imaging system is based on a two mirror design, with a concave mirror followed by a convex mirror.

Advanced optical designs for imaging systems

A variety of femtoprojector optical systems are described. Each of them can be made small enough to fit in a contact lens using plastic injection molding, diamond turning, photolithography and etching, or other techniques. Most, but not all, of the systems include a solid cylindrical transparent substrate with a curved primary mirror formed on one end and a secondary mirror formed on the other end. Any of the designs may use light blocking, light-redirecting, absorbing coatings or other types of baffle structures as needed to reduce stray light.

Optical systems with solid transparent substrate

Advanced optical designs for eye-mounted imaging systems

Femtoprojector optical systems, used in eye-mounted display

A variety of femtoprojector optical systems are described. Each of them can be made small enough to fit in a contact lens using plastic injection molding, diamond turning, photolithography and etching, or other techniques. Most of the systems include a solid transparent substrate with a curved primary mirror formed on one face, a secondary mirror formed on the opposite face, and an annular exit aperture located axially between the two mirrors The designs use light blocking, light-redirecting, absorbing coatings or other types of baffle structures to reduce stray light.

Advanced femtoprojector optical systems

Femtoprojector optical systems

An optical engine for use with MEMS microdisplay devices is disclosed that comprises a collection stage module, an imaging stage module featuring polarization based imaging prism assemblage, and a polarizing illumination stage module featuring a special light integration tube that removes off-axis overfill loss.

Single MEMS imager optical engine

An optical engine architecture that operates as either a two-imager or a three-imager optical engine. The optical engine uses a first PBS cube and a second PBS cube having an optical axis between them. In between the first PBS cube and second PBS cube are two quarter wave plates and a dichroic mirror, where the dichroic mirror is disposed between the two quarter wave plates. In the three imager embodiment, a retarder is disposed between the second PBS cube and the quarter wave plate closest to the second PBS cube. In the two imager embodiment, this retarder is not necessary.

Growing community of inventors

San Jose, CA, United States of America

George Michael Mihalakis