Abstract: An ophthalmic imaging device for improved ophthalmic imaging including: an optical coherence scanning device, a fundus imaging device: an iris viewer; a motorized chin rest; an internal test target, and a fixation target device wherein the optical coherence scanning device, the ophthalmic scanning device, the iris viewer, and the fixation target device all share at least one common optical element. The optical coherence device preferably employs a Mach-Zehnder interferometer with an all fiber reference path; monitoring and attenuating power within the reference path. The multiple devices are separately and in combination aligned with the eye. The system includes internal and external calibration and improved image formats.

Abstract: A method and device for processing materials with laser pulses having a large spectral bandwidth and a device for carrying out said method. The aim of the invention is to create an easy, flexible method enabling universally applicable processing which can, however, be adapted to specific processing and methodological requirements. According to the invention, one or several spectral parameters of the laser pulses, i.e. the spectral amplitude and/or spectral phase and/or spectral polarization thereof, is/are specifically modified, preferably according to a measuring process variable, in order to process material or during the occurrence of said processing. The invention is used in order to process material with laser pulses having a large spectral bandwidth, particularly femto-second pulses and pico-second pulses.

Abstract: A line scan imager is used to determine the motion of a subject. Each line of image data from the line scan imager is compared with a reference image. The location of a matching line in the reference image reveals the displacement of the subject. The current subject displacement can be determined based on each line of image data. The resulting displacement information can be used to correctly place other optical beams on the subject. The method can be applied to tracking the human eye to facilitate measurement, imaging, or treatment with a beam of optical radiation.

Abstract: One embodiment of the present invention is a method for suppressing artifacts in frequency-domain OCT images, which method includes (a) providing sample and reference paths with a significant difference in their chromatic dispersion (b) correcting for the effects of the mismatch in chromatic dispersion, for the purpose of making artifacts in the OCT image readily distinguishable from the desired image.

Abstract: The present invention provides a burner design and method for a high velocity oxygen fuel (HVOF) liquid fuel gun that generates turbulent atomization and uses one or more jets as an injection method for liquid fuel and oxygen to improve the combustion inside the combustion chamber. The burner uses preheated oxygen and preheated fuel to improve vaporization prior to combustion of the fuel.

Abstract: An interferometer configured for use in optical coherence domain (OCT) reflectometry systems is disclosed. In the preferred embodiments, efficient routing of light and a balanced detection arrangement provide a high signal to noise ratio. In a first set of embodiments, a 3×3 coupler is used to split light along separate sample and reference paths and also for combining light returning from those paths and supplying the interfered collected light to the detection system. In an alternate set of embodiments, a pair of cascaded 2×2 couplers provides a similar function. The interferometer can be used with various OCT modalities including time-domain and frequency domain approaches.

Abstract: A process for selectively separating polyamides from multi-component waste materials including the steps of subjecting the multi-component mix to a specific mixture of caprolactam and water at a preselected temperature range below the degradation temperature of the polymer to be recovered, separating the formed polyamide solution, and recovering the desired polyamide. The process is very desirable for separating multi-component waste materials which contain not only nylon 6, but also nylon 6,6. The recovered polyamide may be used in molding applications and in fiber such as carpet fiber.