Diffractive optical elements in hybrid lenses: modeling and design by zone decomposition.
نویسندگان
چکیده
We propose to model hybrid optical systems (i.e., lenses with conventional and diffractive optical elements) as multiaperture systems in which the images formed by each zone of the diffractive optical element should be summed up coherently. This new zone decomposition concept is explained and compared with the standard diffraction-order expansion with the help of a hybrid triplet example.
منابع مشابه
Refractive and diffractive properties of planar micro-optical elements.
The refractive and the diffractive properties of planar micro-optical elements are investigated. The transition between purely refractive and purely diffractive planar microlenses is numerically simulated for the example of differently designed phase-matched Fresnel elements. Results obtained from numerical simulations and experiments show that the refractive and diffractive types exhibit a dis...
متن کاملSpectral properties of multiorder diffractive lenses.
Diffractive lenses have been traditionally designed with the first diffracted order. The spectral characteristics of diffractive lenses operating in higher diffracted orders differ significantly from the first-order case. Multiorder diffractive lenses offer a new degree of freedom in the design of broadband and multispectral optical systems that include diffractive optical elements. It is shown...
متن کاملAchromatic waveguide lenses.
An investigation of the chromatic properties of waveguide lenses is described. In general, the focal length of mode-index and Fresnel zone (diffractive) lenses will be a function of wavelength. As a result, these lenses will have high optical quality over only a relatively small wavelength range. A method is given to correct for this chromatic dispersion by forming a hybrid mode-index/diffracti...
متن کاملCompression Molding of Refractive and Diffractive Hybrid Glass Lenses
INTRODUCTION Refractive and diffractive hybrid lenses have been designed and implemented for some industrial applications. These optical elements however are limited to low volume production or specific materials such as polymers. Although plastic lenses can be fabricated using injection molding into different geometries at high volume, these optics do not perform well under rigorous conditions...
متن کاملFabrication of Binary Diffractive Lens on Optical Films by Electron Beam Lithography
Two types of lenses can focus light: an optical lens using refraction phenomenon and a diffractive lens using diffraction phenomena. Table 1 shows the characteristics of each lens. The focal length of the diffractive lens is controlled by the structures of the lens, as mentioned in detail in Section 2.2. This suggests that the focal length of the diffractive lens is independent of refractive in...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Applied optics
دوره 38 31 شماره
صفحات -
تاریخ انتشار 1999