US8928888B2 - Swept source optical coherence tomography ...- swept source laser sight system ,A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, …Corneal topography with high-speed swept source OCT in ...Sep 01, 2011· 2. Swept-source-based system for corneal topography. Figure 1 shows the experimental setup of the SS OCT system with a 1300 nm FDML laser operating as a light source, both constructed in the Institute of Physics at Nicolaus Copernicus University, Torun, Poland. Details of the design of the SS OCT instrument are given elsewhere [].For the purpose …



Optical coherence tomography - Wikipedia

Optical coherence tomography (OCT) is an imaging technique that uses low-coherence light to capture micrometer-resolution, two- and three-dimensional images from within optical scattering media (e.g., biological tissue). It is used for medical imaging and industrial nondestructive testing (NDT). Optical coherence tomography is based on low-coherence interferometry, typically …

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Optometric Management - Retinal Imaging: Swept Source OCT

Sep 19, 2018· The FDA has granted approval to STAAR Surgical Company for its PMA Supplement for Visian Toric Implantable Collamer Lens for the correction of myopia accompanied by astigmatism. ZEISS says 1.5 million SMILE treatments have been completed. Additionally, the company has produced its 1,000 th VisuMax femtosecond laser.

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Victus Femtosecond Laser Platform - Beye

Realeyez Swept-Source OCT delivers real-time, high-resolution visualization throughout the entire procedure ... Lensar Laser System. Lensar, Inc. Femto LDV Z8. Ziemer Ophthalmics. Catalys Precision Laser System. Johnson & Johnson. ... Centre for Sight Gives Patients the Royal Treatment. Sheraz M. Daya, MD, FACP, FACS, FRCS(Ed), FRCOphth.

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Silverstone - Optos

Silverstone is the most powerful tool yet for examining the retina. The only ultra-widefield retinal imaging device with integrated, UWF-guided swept source OCT, Silverstone produces a 200° single-capture optomap image in less than ½ second and enables guided OCT scanning across the retina and into the far periphery. Imaging modalities and image viewing options are …

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Optics | Laser Sights | Palmetto State Armory

Laser sights allow for quicker and more confident target acquisition. Our great selection of laser sights includes top brands that you can count on like Crimson, Trace, Eotech, Streamlight, Sig Sauer, Tru Glo, & more! Our inventory includes AR-15 laser sights, pistol laser sights and laser bore sights to name a few.

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Laser Lens Size Measurement Using Swept-Source Optical ...

A high-speed, high-resolution swept-source optical coherence tomography (SS-OCT) is presented for focusing lens imaging and a k-domain uniform algorithm is adopted to find the wave number phase equalization. The radius of curvature of the laser focusing lens was obtained using a curve-fitting algorithm. The experimental results demonstrate that the measuring accuracy of …

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Laser sight (firearms) - Wikipedia

A laser sight is a device attached or integral to a firearm to aid target acquisition. Unlike optical and iron sights where the user looks through the device to aim at the target, laser sights project a beam onto the target that provides a visual reference point. Although lasers in the visible part of the spectrum are most common, invisible infrared (IR) lasers may be used in conjunction with ...

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New laser design for swept wavelength measurement systems ...

Feb 01, 2001· The choice for testing these components for loss over wavelength, especially for multichannel devices, is using a tunable-laser source operated in swept mode and a broadband receiver such as an ...

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US8928888B2 - Swept source optical coherence tomography ...

A method and apparatus are provided for a swept source optical coherence tomography (OCT) system utilizing a fast scanning mechanism in the sample arm and a slowly swept light source. The position data is collected rapidly while the wavelength of the source is swept slowly. The system reduces the sweep speed requirements of the light source enabling higher power, …

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Applications of corneal topography and tomography: a ...

Dec 20, 2017· Corneal ectasia is an uncommon but severe sight-threatening complication after refractive surgery. ... Ectasia could occur after laser refractive surgery in three scenarios: ... and PRK. 76 Chan et al. 117 reported a significantly higher repeatability of swept source OCT compared with Scheimpflug imaging for post-LASIK corneal measurements, ...

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LaserSight Files for Bankruptcy | News & Features | Sep ...

WINTER PARK, Fla., Sept. 5 -- LaserSight Inc. announced today that it has filed for Chapter 11 bankruptcy protection and reorganization in the US Bankruptcy Court, Middle District of Florida, Orlando Div., due to "continued cash-flow issues." LaserSight is a supplier of laser vision correction technology; the company's LaserSight Technologies ...

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Swept source OCT system with polarization-sensitive ...

Download scientific diagram | Swept source OCT system with polarization-sensitive scanner head. Swept laser with λ 0 ¼ 1310 nm and Δλ ¼ 110 …

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Pulsed laser source - N777 series - KEYSIGHT TECHNOLOGIES ...

In addition to the proven 8160xx tunable laser source family, Keysight has introduced the new N77xxC generation of instruments. Shorter time to testing and faster swept-wavelength tests help reduce test cost per device, improve test margins and lower the cost of ownership. Conduct two-way sweeps up to 200 nm/s speed with sub-picometer ...

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Long-range, wide-field swept-source optical coherence ...

We present the design, implementation and validation of a swept-source optical coherence tomography (OCT) system for real-time imaging of the human middle ear in live patients. Our system consists of a highly phase-stable Vernier-tuned distributed Bragg-reflector laser along with a real-time processing engine implemented on a graphics processing unit.

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Lights & Lasers - Insight Technology

Comes with box, paperwork, and 2 brand new batteries. Insight Technology AN/PEM-1 Laser Bore Light System "Used". Here is a Used" Insight Technology Incorporated AN/PEM-1 military laser bore light/ bore sighting system. This system is complete as it came from the factory including the manual and bore spuds for.50bmg. 7.62 and 5.56 barrels.

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New laser design for swept wavelength measurement systems ...

Feb 01, 2001· The choice for testing these components for loss over wavelength, especially for multichannel devices, is using a tunable-laser source operated in swept mode and a broadband receiver such as an ...

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Non-mechanical beam-steer lidar system based on swept ...

Abstract. We have proposed a non-mechanical beam-steer lidar system, in which the laser sweeps to realize 1-D beam steering and ranging simultaneously. In the demonstrational experiment, angular coverage of 3.3 ° is achieved with a steering resoluiton of 0.19°. Meanwhile, the distance resolution is 1.8 mm over a distance of 1 m.

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Widefield swept-source OCTA can predict vitreous ...

Dec 23, 2021· All patients underwent widefield swept-source (SS) OCTA, and the images were analyzed by independent operators. Systemic and ocular parameters, including duration of diabetes, glycated hemoglobin level, best-corrected visual acuity, IOP, and widefield SS OCTA metrics were screened as well.

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LaserSight Files for Bankruptcy | News & Features | Sep ...

WINTER PARK, Fla., Sept. 5 -- LaserSight Inc. announced today that it has filed for Chapter 11 bankruptcy protection and reorganization in the US Bankruptcy Court, Middle District of Florida, Orlando Div., due to "continued cash-flow issues." LaserSight is a supplier of laser vision correction technology; the company's LaserSight Technologies ...

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Long-range, wide-field swept-source optical coherence ...

Oct 18, 2016· We present the design, implementation and validation of a swept-source optical coherence tomography (OCT) system for real-time imaging of the human middle ear in live patients. Our system consists of a highly phase-stable Vernier-tuned distributed Bragg-reflector laser along with a real-time processing engine implemented on a graphics ...

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Swept Lasers

The EXALOS Swept Source technology is based on a longitudinal multi-mode external cavity laser architecture that is built with a resonant MEMS scanner, a high performance diffraction grating, an EXALOS broadband semicondutor gain chip and an automated hybrid optical assembly platform that EXALOS has developed over the past decade. ...

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Swept Source Optical Coherence Tomography: a Review ...

Jan 25, 2018· In contrast, SS-OCT uses a tunable swept laser as its light source. This emits, at any instant in time, a “single” wavelength, and sweeps across a broad range of wavelengths as a function of time. ... Leitgeb R, Pollreisz A, et al. Comparative study between a spectral domain and a high-speed single-beam swept source OCTA system for ...

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Laser Lens Size Measurement Using Swept-Source Optical ...

A high-speed, high-resolution swept-source optical coherence tomography (SS-OCT) is presented for focusing lens imaging and a k-domain uniform algorithm is adopted to find the wave number phase equalization. The radius of curvature of the laser focusing lens was obtained using a curve-fitting algorithm. The experimental results demonstrate that the measuring accuracy of …

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Three-dimensional and C-mode OCT imaging with a compact ...

We demonstrate high resolution, three-dimensional OCT imaging with a high speed, frequency swept 1300 nm laser source. A new external cavity semiconductor laser design, optimized for application to swept source OCT, is discussed. The design of the laser enables adjustment of an internal spectral filter to change the filter bandwidth and provides a robust bulk optics design. …

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