Abstract: Optical lenses and methods for manufacturing optical lenses are disclosed herein. Lenses having a reduced aperture size are also disclosed herein along with methods for making the same. The optical lenses disclosed herein can be made having improved optical properties. The lenses can be used in optical microscopes, including optical microscopes with a shorter optical path relative to conventional optical microscopes.

Abstract: Optical lenses and methods for manufacturing optical lenses are disclosed herein. Lenses having a reduced aperture size are also disclosed herein along with methods for making the same. The optical lenses disclosed herein can be made having improved optical properties. The lenses can be used in optical microscopes, including optical microscopes with a shorter optical path relative to conventional optical microscopes.

Abstract: Methods, systems, and apparatuses for efficient low-cost wind energy improvements using passive circulation control including, for instance, a fixed-pitch blade having a hub mountable end, a tip end, a blade body between the hub mountable end and the tip end of the fixed-pitch blade, and a channel interior to the blade body having an one or more ingress ports and one or more egress ports, according to one embodiment. For example, the one or more egress ports may be configured as a slit or a series of slits near the trailing edge so as to vent air out of the slit or slits at an angle to the local air flow traversing the blades airfoil.