Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Tamer T. Elazhary"'
Publikováno v:
Optical Design and Fabrication 2017 (Freeform, IODC, OFT).
Single mode optical fiber is commonly used as a light source in complex optical assemblies. A collimation lens can be used to collimate the light. Small displacement, tip, or tilt of fiber with respect to the lens or vice versa induces beam pointing.
Publikováno v:
Journal of Optics. 40:168-175
This paper presents a closed-form solution to the sag of the Cartesian oval and an alternate iterative method for obtaining the sag. The emphasis is in providing a methodology for determining the sag and derivatives of a Cartesian surface for optical
Publikováno v:
Classical Optics 2014.
We present designs of 1.65 NA visible imaging lens with 1.75 mm field size and 20X magnification. Small obscuration is enabled using semi-transparent annular surface or novel multi reflections optical element.
Publikováno v:
Classical Optics 2014.
We show a design method for non axi-symmetric optical imaging systems that uses analytic conditions to constrain aberrations that have low order field dependence, but are corrected to all orders in the pupil.
Publikováno v:
Renewable Energy and the Environment.
In this paper we propose a method based on the generalized Sine condition for the design of aplanatic optical systems that are generally made of free form optics. As a proof of concept we present the design of a two mirrors fast aplanatic telescope.
Publikováno v:
SPIE Proceedings.
Satellite images help in studying various phenomena related to earth's surface. The range of applications varies from agriculture, geology, coast and marine studies to urban development and environmental affairs. CubeSat projects belong to the catego
Publikováno v:
ResearcherID
In optical lithography, light diffracted from photo mask structures has been customarily assumed to be constant with the angle of incidence of the light illuminating the photo mask. As numerical aperture increases to unity and beyond, to cope with th
Publikováno v:
Applied Optics. 54:5037
The classic Abbe sine condition relates pupil distortion to aberrations with linear field dependence such as coma. This paper provides a fully generalized form of the sine condition that does not use any symmetry. It accurately predicts the change in
Publikováno v:
Optics Express. 21:15809
Several state-of-the-art imaging applications require a large operational spectral band, a large field size, and a high numerical aperture (NA). The design of a lens that simultaneously meets these requirements is a challenging task. We present optic