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Cone directionality from laser ray tracing in normal and LASIK pati…
https://pubmed.ncbi.nlm.nih.gov/23861557/#:~:text=Abstract%20Laser%20ray%20tracing%2C%20a%20technique%20originally%20developed,eyes%20after%20LASIK%20corneal%20refractive%20surgery%20for%20myopia.
Laser ray-tracing method for optical testing - PubMed
https://pubmed.ncbi.nlm.nih.gov/18073906/
We have developed a novel laser ray-tracing method to measure aberrations in optical systems. It consists of delivering narrow laser pencils (by a laser scanner), recording the spots that are formed on the image plane (with a CCD camera), and computing the position of each centroid. This approach co …
Laser ray tracing and power deposition on an …
https://pubmed.ncbi.nlm.nih.gov/11046339/
A scheme is presented for laser beam evolution and power deposition on three-dimensional unstructured grids composed of hexahedra, prisms, pyramids, and tetrahedra. The geometrical-optics approximation to the electromagnetic wave equation is used to follow propagation of a collection of discrete ray …
(PDF) Laser Ray-Tracing Method for Optical Testing
https://www.researchgate.net/publication/2401716_Laser_Ray-Tracing_Method_for_Optical_Testing
W e have developed a novel laser ray-tracing method to measure aberrations in optical systems. It consists of. delivering narrow laser pen cils (by a laser scann er), recording the spots that are...
Laser ray-tracing method for optical testing - OSA …
https://opg.optica.org/ol/abstract.cfm?uri=ol-24-14-951
Abstract. We have developed a novel laser ray-tracing method to measure aberrations in optical systems. It consists of delivering narrow laser pencils (by a laser scanner), recording the spots that are formed on the image plane (with a CCD camera), …
Cone directionality from laser ray tracing in normal and …
https://pubmed.ncbi.nlm.nih.gov/23861557/
Laser ray tracing, a technique originally developed to measure ocular aberrations from the deviations of the local ray aberrations as a function of entry pupil, was used to assess cone directionality in 29 normal eyes (seven of which underwent LASIK surgery) and seven eyes after LASIK corneal refractive surgery for myopia. The total intensity of the retinal aerial images was …
Ray tracing (graphics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(graphics)
Ray tracing (graphics) Not to be confused with Ray tracing (physics). This recursive ray tracing of reflective colored spheres on a white surface demonstrates the effects of shallow depth of field, "area" light sources, and diffuse interreflection. In 3D computer graphics, ray tracing is a technique for modeling light transport for use in a ...
Ray tracing (physics) - Wikipedia
https://en.wikipedia.org/wiki/Ray_tracing_(physics)
In physics, ray tracing is a method for calculating the path of waves or particles through a system with regions of varying propagation velocity, absorption characteristics, and reflecting surfaces. Under these circumstances, wavefronts may bend, change direction, or reflect off surfaces, complicating analysis. Ray tracing solves the problem by repeatedly advancing idealized …
Laser ray tracing and power deposition on an unstructured three ...
https://link.aps.org/doi/10.1103/PhysRevE.61.895
Laser Ray Tracing versus Hartmann–Shack sensor for measuring …
https://opg.optica.org/josaa/abstract.cfm?uri=josaa-17-6-974
A comparison and validation study of Laser Ray Tracing (LRT) and Hartmann–Shack wave-front-sensor (to be referred to as H–S) methods was carried out on both artificial and human eyes. The aim of this work was double. First, we wanted to verify experimentally the equivalence of single- and double-pass measurements for both H–S and LRT.
Comparing laser ray tracing, the spatially resolved …
https://pubmed.ncbi.nlm.nih.gov/11327676/
Purpose: To compare quantitatively three techniques to measure the optical aberrations of the human eye: laser ray tracing (LRT), the Hartmann-Shack wavefront sensor (H-S), and the spatially resolved refractometer (SRR). LRT and H-S are objective imaging techniques, whereas SRR is psychophysical. Methods: Wave aberrations were measured in two normal subjects with all …
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