An accurate volume hologram model for optical design: simulating a multi-color holographic display using ray tracing

2019 ◽  
Author(s):  
Han-Hsiang Cheng
Keyword(s):  
Ray Tracing ◽  
Optical Design ◽  
Volume Hologram ◽  
Holographic Display

scholarly journals Research on Laser Dazzle Simulation Using ZEMAX Software and MATLAB

2020 ◽  
Vol 327 ◽  
pp. 02001
Author(s):  
Niu jin ◽  
Xu xiping ◽  
An zhiyong
Keyword(s):  
Ray Tracing ◽  
Programming Language ◽  
Optical Design ◽  
Optical Element ◽  
Analysis Model ◽  
Software Simulation ◽  
Scope Of Application ◽  
Disability Glare ◽  
Design Software ◽  
Calibration And Verification

The dazzling process of the laser has been digitally simulated. First, the optical design software (ZEMAX) is combined with the scientific programming language (MATLAB), then the ray tracing is used to build the scattering model of each optical element, and finally compared with a simpler model based on CIE disability glare data to achieve the calibration and verification of the software simulation effect. The results show that this advanced optical eye simulation technology can be used to study the laser glare efficiency, and it is possible to expand the scope of application of the analysis model.

scholarly journals Ray Tracing Study of Optical Characteristics of the Solar Image in the Receiver for a Thermal Solar Parabolic Dish Collector

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Saša R. Pavlovic ◽  
Velimir P. Stefanovic
Keyword(s):  
Ray Tracing ◽  
Low Cost ◽  
Optical Design ◽  
Solar Concentrator ◽  
Solar Collectors ◽  
Focal Distance ◽  
Medium Temperature ◽  
Parabolic Dish ◽  
Parabolic Dish Concentrator ◽  
Temperature Levels

This study presents the geometric aspects of the focal image for a solar parabolic concentrator (SPC) using the ray tracing technique to establish parameters that allow the designation of the most suitable geometry for coupling the SPC to absorber-receiver. The efficient conversion of solar radiation into heat at these temperature levels requires a use of concentrating solar collectors. In this paper detailed optical design of the solar parabolic dish concentrator is presented. The system has diameter D=3800 mm and focal distance f=2260 mm. The parabolic dish of the solar system consists of 11 curvilinear trapezoidal reflective petals. For the construction of the solar collectors, mild steel-sheet and square pipe were used as the shell support for the reflecting surfaces. This paper presents optical simulations of the parabolic solar concentrator unit using the ray tracing software TracePro. The total flux on the receiver and the distribution of irradiance for absorbing flux on center and periphery receiver are given. The goal of this paper is to present the optical design of a low-tech solar concentrator that can be used as a potentially low cost tool for laboratory scale research on the medium-temperature thermal processes, cooling, industrial processes, polygeneration systems, and so forth.

Optical design with aspheric surfaces and exact ray tracing: an analytical method

2007 ◽  
Author(s):  
O. García-Lievanos ◽  
S. Vazquez-Montiel ◽  
J. A. Hernandez-Cruz ◽  
J. Castro-Ramos
Keyword(s):  
Ray Tracing ◽  
Analytical Method ◽  
Optical Design ◽  
Aspheric Surfaces

scholarly journals Optical Design of a Novel Two-Stage Dish Applied to Thermochemical Water/CO2 Splitting with the Concept of Rotary Secondary Mirror

Energies ◽  
2020 ◽  
Vol 13 (14) ◽  
pp. 3553
Author(s):  
Song Yang ◽  
Jun Wang ◽  
Peter D. Lund
Keyword(s):  
Mathematical Model ◽  
Ray Tracing ◽  
Concentration Ratio ◽  
Thermal Water ◽  
Optical Design ◽  
Two Stage ◽  
Optical Efficiency ◽  
Primary Mirror ◽  
Secondary Mirror ◽  
Ray Tracing Simulation

In this paper, a novel two-stage dish concentrator (TSD) with a rotary secondary mirror (SM) is presented for solar thermal water/CO2 splitting. An in-house code for ray-tracing simulation of the concentrator was developed and validated. Among all feasible geometries, a hyperboloid with an upper sheet is the most popular option and is widely used as a secondary reflector, which is mainly discussed here. All para-hyperboloid geometric combinations can be categorized into three typical patterns (φ1 < π/2, φ1 = π/2, φ1 > π/2, φ1 = field angle of PM). The initial designs of the TSD, respective to different off-axis levels for each combination, were first designed. Then a new mathematical model was introduced to reshape the SM to reach optimal truncated designs. Finally, a new concept of an off-axis primary mirror (PM) combined with the truncated SM was evaluated by using the in-house ray-tracing code. The results include the optical efficiency, concentration ratio and intercepted radiant flux. The best solutions with the highest optical efficiency fall in the range π/2 ≤ φ1 ≤ (π − arcsin 0.8) rads and 0.4 ≤ NA2 ≤ 0.6 (NA2 = sin φ2, φ2 = field angle of SM), which vary with the concentration ratio and inclination angle.

Optical Design with Aspheric Surfaces and Exact Ray Tracing: An Analytic Method

2006 ◽  
Author(s):  
O. García-Lievanos ◽  
S. Vazquez-Montiel ◽  
J. Castro-Ramos ◽  
J.A. Hernández-Cruz
Keyword(s):  
Ray Tracing ◽  
Optical Design ◽  
Analytic Method ◽  
Aspheric Surfaces

Derivation of the Angular Dispersion Error Distribution of Mirror Surfaces for Monte Carlo Ray-Tracing Applications

2011 ◽  
Vol 133 (4) ◽  
Author(s):  
T. Cooper ◽  
A. Steinfeld
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Gaussian Distribution ◽  
Error Function ◽  
Optical Design ◽  
Rayleigh Distribution ◽  
Cumulative Distribution ◽  
Polar Coordinates ◽  
Angular Dispersion ◽  
Dispersion Error

Of paramount importance to the optical design of solar concentrators is the accurate characterization of the specular dispersion errors of the reflecting surfaces. An alternative derivation of the distribution of the azimuthal angular dispersion error is analytically derived and shown to be equivalent to the well-known Rayleigh distribution obtained by transforming the bivariate circular Gaussian distribution into polar coordinates. The corresponding inverse cumulative distribution function applied in Monte Carlo ray-tracing simulations, which gives the dispersion angle as a function of a random number sampled from a uniform distribution on the interval (0,1), does not depend on the inverse error function, thus simplifying and expediting Monte Carlo computations. Using a Monte Carlo ray-tracing example, it is verified that the Rayleigh and bivariate circular Gaussian distribution yield the same results. In the given example, the Rayleigh method is found to be ∼40% faster than the Gaussian method.

scholarly journals Aberration analysis of AOTF-based stereoscopic spectral imager using optical design software

2021 ◽  
Vol 2127 (1) ◽  
pp. 012035
Author(s):  
VI Batshev ◽  
A V Gorevoy ◽  
V E Pozhar ◽  
A S Machikhin
Keyword(s):  
Ray Tracing ◽  
Narrow Band ◽  
Optical Design ◽  
Three Dimensional ◽  
Imaging Systems ◽  
Optical Aberrations ◽  
Program Module ◽  
Polarized Beams ◽  
Design Software ◽  
Spectral Imager

Abstract Stereoscopic spectral imagers using acousto-optic tunable filters (AOTF) provide high-resolution narrow band images acquired from two viewpoints with different polarization in arbitrary spectral intervals, which allows obtaining three-dimensional hyperspectral models of inspected objects for many applications. We discuss modeling of acousto-optic (AO) cell for optical system design and introduce a program module for ray tracing through AO cell compatible with Zemax optical design software. A detailed study of the optical aberrations that limit the image quality in two AOTF-based stereoscopic systems implementing simultaneous AO diffraction of two differently polarized beams in single AO cell is presented. This approach may be used to design various AOTF-based imaging systems, but the limitations of ray tracing analysis should be considered.

Optimized layered method for real-time interactive holographic display based on ray-tracing technique

2020 ◽  
Vol 59 (10) ◽  
pp. 1
Author(s):  
Hui Li ◽  
Xinzhu Sang ◽  
Linmin Zhao ◽  
Duo Chen ◽  
Zhidong Chen ◽  
...  
Keyword(s):  
Real Time ◽  
Ray Tracing ◽  
Holographic Display

scholarly journals Intraocular Telescopic System Design: Optical and Visual Simulation in a Human Eye Model

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Georgios Zoulinakis ◽  
Teresa Ferrer-Blasco
Keyword(s):  
Ray Tracing ◽  
Optical Design ◽  
Visual Performance ◽  
Eye Model ◽  
Human Eye ◽  
Telescopic System ◽  
Custom Made ◽  
Design Software ◽  
The Difference

Purpose. To design an intraocular telescopic system (ITS) for magnifying retinal image and to simulate its optical and visual performance after implantation in a human eye model. Methods. Design and simulation were carried out with a ray-tracing and optical design software. Two different ITS were designed, and their visual performance was simulated using the Liou-Brennan eye model. The difference between the ITS was their lenses’ placement in the eye model and their powers. Ray tracing in both centered and decentered situations was carried out for both ITS while visual Strehl ratio (VSOTF) was computed using custom-made MATLAB code. Results. The results show that between 0.4 and 0.8 mm of decentration, the VSOTF does not change much either for far or near target distances. The image projection for these decentrations is in the parafoveal zone, and the quality of the image projected is quite similar. Conclusion. Both systems display similar quality while they differ in size; therefore, the choice between them would need to take into account specific parameters from the patient’s eye. Quality does not change too much between 0.4 and 0.8 mm of decentration for either system which gives flexibility to the clinician to adjust decentration to avoid areas of retinal damage.

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