Including Fresnel reflection losses in freeform lens design
نویسندگان
چکیده
We present an inverse method for optical design that compensates local Fresnel reflections. elaborate this a point source and far-field target. modify existing algorithm based on the least-squares method. This is done in such way shape of transmitted intensity as desired.
منابع مشابه
Freeform lens design for LED collimating illumination.
We present a simple freeform lens design method for an application to LED collimating illumination. The method is derived from a basic geometric-optics analysis and construction approach. By using this method, a highly collimating lens with LED chip size of 1.0 mm × 1.0 mm and optical simulation efficiency of 86.5% under a view angle of ± 5 deg is constructed. To verify the practical performanc...
متن کاملDaylighting System Based on Novel Design of Linear Fresnel lens
In this paper, we present a design and optical simulation of a daylighting system using a novel design of linear Fresnel lens, which is constructed based on the conservation of optical path length and edge ray theorem. The linear Fresnel lens can achieve a high uniformity by using a new idea of design in which each groove of the lens distributes sunlight uniformly over the receiver so that the ...
متن کاملDesign of Fresnel Lens-Type Multi-Trapping Acoustic Tweezers
In this paper, acoustic tweezers which use beam forming performed by a Fresnel zone plate are proposed. The performance has been demonstrated by finite element analysis, including the acoustic intensity, acoustic pressure, acoustic potential energy, gradient force, and particle distribution. The acoustic tweezers use an ultrasound beam produced by a lead zirconate titanate (PZT) transducer oper...
متن کاملFresnel Lens with Embedded Vortices
Vortices of different charges are embedded in a wavefront that has quadratic phase variation, and the intensity distribution near the focal plane is studied. This method may be useful in realizing complicated beam profiles. We have experimentally demonstrated the generation of vortex arrays having integer as well as fractional topological charges that produce different intensity profiles at the...
متن کاملFreeform LED lens for uniform illumination.
Light flux from LED must be redistributed to meet the needs of lighting in most cases, a new method is proposed for its secondary optic design. Based on refractive equation and energy conservation, a set of first-order partial differential equations which represent the characters of LED source and desired illumination were presented. The freeform lens was constructed by solving these equations ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Epj Web of Conferences
سال: 2022
ISSN: ['2101-6275', '2100-014X']
DOI: https://doi.org/10.1051/epjconf/202226602008