Concept

Zoom lens

Related publications (56)

Confocal microscopy using variable-focal-length microlenses and an optical fiber bundle

Liza Carol Andrea Dunbar, Toralf Scharf, Lin Yang

The use of variable-focal-length (VFL) microlenses can provide a way to axially scan the foci across a sample by electronic control. We demonstrate an approach to coupling VFL microlenses individually to a fiber bundle as a way to create a high-throughput ...

2005

Solid immersion lens used in a microscope with a lens system is made of a material having a refractive index that is selected so that the numerical aperture of the lens system

Theo Lasser, Ramachandra Rao

The invention relates to a solid immersion lens (SIL) for a microscope, comprising a lens system with a predetermined numerical aperture. The refractive index of the material of the solid immersion lens is selected in such a way that the numerical aperture ...

2005

Volume holographic hyperspectral imaging

Demetri Psaltis, Wei Liu

A volume hologram has two degenerate Bragg-phase-matching dimensions and provides the capability of volume holographic imaging. We demonstrate two volume holographic imaging architectures and investigate their imaging resolution, aberration, and sensitivit ...

2004

Micro-replication of Optical Lenses in Glass using Sol Gel Technology

Martinus Gijs, Abdeljalil Sayah, Virendra Kumar Parashar

A new method to realize arrays of micro-lenses using a sol gel glass replication technology is presented. Polydimethyl-siloxane (PDMS) master structures are used for the replication of thin glass membranes, which, by an appropriate annealing procedure, res ...

2002

Experimental investigation of high-power single-pass Raman shifters in the ultraviolet with Nd:YAG and KrF lasers

Hubert van den Bergh, Bertrand Calpini, Valentin Simeonov, Valentin Mitev, Laurent De Schoulepnikoff

Single-pass Raman cells pumped by either a quadrupled Nd:YAG (266-nm) laser or a KrF excimer laser are studied. The Raman-active gases comprise H2, D2, or CH4, as well as a mixt. of them, with the addn. of He, Ne, or Ar. A parametric study, in which the St ...

1997

Camera Data Sheet for Pictorial Electronic Still Cameras

Sabine Süsstrunk

A data sheet is presented outlining the performance and characteristics of a Kodak DCS 200mi camera. In addition to providing information on this camera, the format and content of the data sheet could serve as a guide in the organization and display of per ...

1995

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