Results 221 to 230 of about 22,341 (248)
Some of the next articles are maybe not open access.

Achromatic Holographic Optical Elements

Journal of Optics, 1978
It is shown that the holographic optical elements (HOE) can be achromatised to be used with polychromatic light. The two-elements and three elements achromatic HOE systems possess negative power and hence should be used in conjunction with refractive/reflective optics.
openaire   +1 more source

Advances in holographic optical elements

SPIE Proceedings, 1990
Recent advances in the design and recording of holographic optical elements are illustrated by means of two representative examples - focussing lens and multiple beam grating. The focussing lens design method is based on an analytic ray-tracing procedure that yields an analytic solution for the diffractive grating function.
Asher A. Friesem   +3 more
openaire   +1 more source

Holoconcentrators as holographic optical elements

ICALEO '83: Proceedings of the Information Processing and Holography Symposium, 1983
In this paper, two basic problems of dichromated gelatin holoconcentrator designs: ray-tracing computing and diffraction efficiency characteristics optimization, are considered.
P. Bendt, T. Jannson, H. Tin, H. A. Yu
openaire   +1 more source

Holographic solar concentrator using multiplexed holographic optical elements

2018 23rd Opto-Electronics and Communications Conference (OECC), 2018
In this paper, we present the multiplexed holographic optical elements (HOEs) using photopolymer for solar concentrator application. We experimentally confirmed that multiplexed holographic lens can condense the lights with high optical efficiency.
Hui-Ying Wu   +4 more
openaire   +1 more source

Achromatic triplet using holographic optical elements

Applied Optics, 1977
An achromatic optical system can be made using three holographic optical elements. A very simple design scheme is presented, and the properties of the system are discussed.
openaire   +2 more sources

Holographic Optical Elements Using Polyvinyl Carbazole Holographic Material

SPIE Proceedings, 1986
We developed a new holographic material: polyvinyl carbazore material. The advantage or the material over conventional DCC material is that it has high durability against humidity and transparency. Some optical properties of the material and some applications are presented.
K. Matsumoto   +3 more
openaire   +1 more source

Holographic Optical Elements with Electro-optic Control

2021
Although polymeric and liquid crystalline materials have been separately studied for many years, optical devices based the interaction between these two materials in a composite device have come to the forefront of technology in recent years. Liquid crystals typically have strong interactions with the surfaces with which they make contact, with the ...
Michael Leigh Ermold, Adam Fontecchio
openaire   +1 more source

Aberration coefficients of curved holographic optical elements

Applied Optics, 1986
A general formula is derived that gives all aberration terms of holographic optical elements on substrates of any shape. The spherical substrate shape and the planar substrate shape are treated as important special cases. A numerical example illustrates the need of including higher-order aberrations.
P E, Verboven, P E, Lagasse
openaire   +2 more sources

Use of holographic optical elements in optical storage

Optical Society of America Annual Meeting, 1990
Reflection holographic optical elements for CD/CD-ROM optical pickups and polarizing holographic optical elements for WO and MO disk read/write heads have been developed. This talk discusses how holographic optical elements fit for optical heads, including their advantages and disadvantages from the view point of application approach.
openaire   +1 more source

Holographic Optical Element for Visual Display Applications

Applied Optics, 1973
Off-axis and off-bisector reflection-type holographic visual display elements have been recorded in dichromated gelatin deposited on planar or spherical shell substrates of glass or Plexiglas. A procedure for bonding gelatin to Plexiglas is given. Holographic elements are recorded at the argon wavelength of 514.5 nm and reconstructed with spectral ...
D G, McCauley   +2 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy