Abstract: A head-mounted augmented reality device (10) includes a pair of optical modules (12) for the right and left eyes of the user, each having a collimating display source (14) optically coupled to a light guide (16) for directing image illumination towards an eye of the user. A support structure (20) is supported by the head of the user. An optical bench (22) provides a first set of alignment features (26, 28, 32, 74) for aligning and affixing the right optical module and a second set of alignment features (26, 28, 32, 74) for aligning and affixing the left optical module. A suspension arrangement suspends the optical bench relative to the support structure. The optical bench (22) provides the sole mechanical connection between the pair of optical modules (12) and the support structure (20).

Abstract: A solid state laser device with a lengthened pump beam path is provided herein. The laser device includes an active element having a specified geometric shape, specified optical characteristics, and further configured for lasing; and a light pumping element optically coupled to the active element, wherein the light pumping element is configured to generate a pump light beam directed at a specified angle into the active element, and wherein at least one of: the specified angle, the specified geometric shape, and the specified optical characteristics are selected such that the pump light beam is reflected one or more times within the active element resulting in an extension of an absorption path of the pump light beam within the active element.

Abstract: A solid state laser device is provided. The active element has a double slope portion defining a right angle between the slopes, wherein the pump light beam is directed into one of the slopes, and wherein an output coupler configured to output a laser beam from the active element is located on a portion of the active element, opposite of the double slope portion, the double slope portion is configured such that the laser beam travels at least twice along the long axis of the active element; and a second double slopes portion located at the edge opposite of the first double sloped portion, wherein the second double slopes portion is perpendicular to the first double slopes portion, and wherein the second double slopes portion is configured such that the laser beam travels back and forth along the long axis of the active element at least one more time.