Results 211 to 220 of about 5,247 (233)

Lens design for holographic data storage systems

SPIE Proceedings, 2005
A pair of cascade lenses, a Fourier-transform lens and an imaging lens, is the key component in a volume holographic data-storage system (HDSS) for writing in and reading out the information in holographic recording material respectively. For a high-density holographic data-storage system, performances of these lenses are critical.
Ye Wang, Changjiang Liu, Yuhong Wan, Shiquan Tao   +3 more
openaire   +1 more source

Development of bifocal holographic lens using a photopolymer

Imaging and Applied Optics 2018 (3D, AO, AIO, COSI, DH, IS, LACSEA, LS&C, MATH, pcAOP), 2018
A bifocal holographic lens using a photopolymer is presented in this paper. We used monochromatic light to evaluate the holographic optical element (HOE) by measuring the diffraction efficiencies of holographic gratings. The experimental results confirm that the bifocal holographic lens can focus on two different points.
Hui-Ying Wu, Chang-Won Shin, Sang-Keun Gil, Nam Kim   +3 more
openaire   +1 more source

Holographic lens for wide-FOV laser receiver

SPIE Proceedings, 1990
Light weight and compactness are critical requirements in the design of many optical systems and the use of holographic optics often provides an ideal solution to the size and weight problem. In this paper, the design and fabrication of a wide field-of-view (FOV) holographic lens for use in a laser receiver are described.
Anthony M. Tai, Michael T. Eismann, Bradley D. Neagle   +2 more
openaire   +1 more source

The s and t formulae for holographic lens elements

Optics Communications, 1977
Abstract By considering the propagation of an astigmatic wavefront through a hologram on a curved surface expressions for the distances to the principal foci are obtained. In the special case of a system with a plane of symmetry these reduce to expressions similar to the conventional refraction/reflection s and t formulae.
openaire   +1 more source

Holographic Lens for Pilot's Head-Up Display

1974
Abstract : The report describes work on the fabrication of the full-scale holographic lens for a wide field of view (FOV) head-up display (HUD) system. The basic system parameters are a 25 degrees FOV, a 25 in. eye relief, and a 3 in. high by 5 in. wide exit pupil.
A. Graube, D. H. Close
openaire   +1 more source

Holographic capture and projection system of real object based on tunable zoom lens

PhotoniX, 2020
Di Wang, Chao Liu, Chuan Shen
exaly  

Design and analysis of holographic lens based optical system for laser Doppler anemometry

Optics and Laser Technology, 2023
Arasad Ali Khan, H L Yadav
exaly  

Compact and lightweight optical see-through holographic near-eye display based on holographic lens

Displays, 2021
Min-Yang He, Yan Xing, Han-Le Zhang
exaly  

Designing photovoltaic concentrators using holographic lens recorded in nickel ion doped photopolymer material

Solar Energy, 2018
K P Vijayakumar, C Sudha Kartha
exaly  

Theory of a Holographic Lens With a High Efficiency

Journal of Optics (India), 2015
D V Udupa, R P Shukla, N C Das
exaly