Abstract: A light polymerizable composition for use in the additive manufacturing of medical devices may include a first photo-initiator and a second photo-initiator. The first photo-initiator activates to initiate curing of the composition when exposed to light of a first wavelength in an additive manufacturing device and the second photo-initiator limits the transmission of the light of the first wavelength that activates the first photo-initiator in the additive manufacturing device. The second photo-initiator is activated to further cure the composition when exposed to a light of a second wavelength different from the first wavelength by activating the second photo-initiator to produce free radicals at a higher rate when exposed to the light of the second wavelength than when exposed to the light of the first wavelength.

Abstract: A proactive vehicular security system is provided. The proactive vehicular security system embodies a new use for lidar radar providing a lidar radar system operatively associated with a vehicle, the lidar radar system configured to provide a field of view defining a coordinate system adjacent to the vehicle so that each separate object in the field of view can be defined by the coordinate system; the lidar radar system configured to provide a zonal coordinate system for a structural profile of the vehicle wherein a datum of the zonal coordinate system comprises a datum for each zone of a plurality of zones comprising the zonal coordinate system, and wherein changes in the zonal coordinates associated with the structural profile, relative to the datum of the zonal coordinate system, indicates metes and bounds of damage to or additions to the structural profile of the vehicle.

Abstract: A proactive vehicular security system is provided. The proactive vehicular security system embodies a new use for lidar radar providing a lidar radar system operatively associated with a vehicle, the lidar radar system configured to provide a field of view defining a coordinate system adjacent to the vehicle so that each separate object in the field of view can be defined by the coordinate system; the lidar radar system configured to provide a zonal coordinate system for a structural profile of the vehicle wherein a datum of the zonal coordinate system comprises a datum for each zone of a plurality of zones comprising the zonal coordinate system, and wherein changes in the zonal coordinates associated with the structural profile, relative to the datum of the zonal coordinate system, indicates metes and bounds of damage to or additions to the structural profile of the vehicle.

Abstract: A process evaluates an aging property of a distributed Bragg reflector (DBR) laser. The process includes illuminating a Bragg grating of the distributed Bragg reflector (DBR) laser with light while the DBR laser is both supplied a tuning current and not lasing. The process also includes performing an action to the DBR laser responsive to a wavelength of a Bragg peak in a portion of the light reflected by the Bragg grating and a value of the tuning current supplied during the illuminating.

Abstract: The present invention provides a method and apparatus for compensating for the age induced wavelength drift in a tunable DBR. In practice, the tuning characteristic (i.e. output wavelength versus tuning current) of a tunable DBR may be characterized before and after factory aging, typically in the form of a burn-in or purge cycle. An aging vector may be constructed in accordance with the ratio of the change in the tuning characteristic associated with a second output wavelength and the change in the tuning characteristic associated with a first output wavelength as a function of the factory aging. In addition, the tuning characteristic associated with transmission at the first output wavelength may be monitored in the field.

Abstract: The present invention provides a method and apparatus for compensating for the age induced wavelength drift in a tunable DBR. In practice, the tuning characteristic (i.e. output wavelength versus tuning current) of a tunable DBR may be characterized before and after factory aging, typically in the form of a burn-in or purge cycle. An aging vector may be constructed in accordance with the ratio of the change in the tuning characteristic associated with a second output wavelength and the change in the tuning characteristic associated with a first output wavelength as a function of the factory aging. In addition, the tuning characteristic associated with transmission at the first output wavelength may be monitored in the field.