摘要:
A modular chassis for use in a manufacturing process line wherein manufacturing process steps are performed by manufacturing devices on workpieces carried by pallets. The chassis top plate is machined attaching one or more different types of manufacturing devices to the chassis, such as a robot or automatic parts feeder. A non-synchronous incoming pallet conveyor is aligned horizontally to receive a set of incoming pallets. A pallet transfer and index module is attached and aligned to accept the set of incoming pallets from the incoming pallet conveyor. The transfer and index module includes an indexing mechanism to accurately position each of the retrieved incoming pallets in one of a plurality of workstations so that at the end of the transfer cycle the process steps can be performed on each of the workpieces. An outgoing pallet conveyor is also aligned horizontally on the top plate to receive the set of pallets from the pallet transfer and index device and move the set of pallets to an outgoing side of the chassis at the end of the process cycle. A pallet return conveyor is aligned on the top plate parallel to the incoming and outgoing pallet conveyors proximate an operator side of the chassis. The chassis further includes at least one power and control sub-system for providing operational power to, and control of, one or more of the manufacturing devices that are attachable to the chassis, and a process control panel viewable from the operator side of the chassis.
摘要:
System and method for photodynamic therapy using a phased array Raman laser amplifier including a beam generator for generating a fundamental laser beam and a Raman seed frequency laser beam, and a fiber optic laser amplifier array for forming a diffraction limited output laser beam at the Raman seed frequency by amplifying the fundamental laser beam to a power level corresponding to the Stimulated Raman Scattering (SRS) threshold to thereby pump the SRS process and provide Raman gain to the Raman seed frequency laser beam.
摘要:
A dual frequency laser amplifier includes a beam generator for generating first and second source laser beams, and a co-doped optical fiber including first and second dopant ions having first and second gain bandwidths corresponding to the respective wavelengths of the first and second source laser beams for selectively forming first and second diffraction limited output laser beams responsive to the relative radiated power between the first and second source laser beams. A dual frequency laser oscillator and a method for generating the first and second output laser beams at any predetermined radiated power distribution are also described.
摘要:
A solid state laser rod and a mount through which heat is dissipated from the rod are joined together at a bond comprised of a reflective layer on the surface of the rod, a barrier layer over the reflective layer, and a solder layer between the barrier layer and the mount. The reflective layer may be applied by sputter or other deposition procedures and is highly reflective in the region of the spectrum at which the laser operates, thus insuring optimum efficiency for the rod. The barrier layer may be applied to the reflective layer by the same deposition procedure, and it is impervious to the solder so that the solder does not penetrate it and scavenge the reflective layer. The solder should have a low melting point so as to avoid setting up excessive mechanical stresses in the rod when the solder solidifies. Both the mount and the barrier layer may be covered with a wetting layer prior to soldering to achieve better adhesion of the solder.
摘要:
Broadband electrooptical modulator means for use in optical and electrooptical communication systems and the like, the modulator means including modulator driver and driver amplifier means, broadband matching network means, temperature control means, and means to automatically compensate for variations including electronic variations in the output. The subject modulator means employ optically coupled crystal elements which have their optical Z-axes oriented perpendicularly to each other to cancel natural birefringence and to reduce temperature sensitivity including the temperature sensitivity of the extinction ratio of the crystals.
摘要:
An improved laser construction having relatively simple single element means located in the laser cavity for simultaneously mode-locking and frequency doubling the laser output, said single element means including a crystal such as a non-linear barium sodium niobate (BSN) crystal properly excited to achieve acoustooptic loss modulation as well as to mode-lock the laser output, and means for locating the crystal within the laser resonator cavity.