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Spherical Aberration - What is Spherical Aberration?

Spherical Aberration is a condition that occurs in lenses with spherical surfaces, such as the lenses used in small microscopes. Spherical aberration is caused by the failure of light rays to converge to the same point when the light rays are parallel to the optic axis but at different lengths from the optic axis.

6 Dec 2007

Chromatic Aberration – The Definition of Chromatic Aberration

Chromatic aberration is also referred to as color fringing. Chromatic aberration occurs when a lens system is creating different focal lengths for different wavelengths of light. In other words, it is not creating identical focal plane for different light rays when the light rays are brought into focus.

2 Dec 2007

What is Optical Aberration and Types of Optical Aberration?

Optical aberration can be considered as a flaw or distortion in the image generated by an optical system such as a lens or mirror compared to the original image.

1 Dec 2007

Optical Telescope - How Does it Work?

An optical telescope is an instrument that can make distant objects appears much closer.

1 Dec 2007

Liquid Lens - An Introduction to Liquid Lens

The theory behind liquid lens is based on the properties of one or more fluids to create magnifications within a small amount of space. Liquid lens can be considered as "infinitely variables" lens with variable focus, and the focus is controlled without using any moving parts.

21 Nov 2007

Anti-Reflective Coatings - What is Anti-Reflective Coating and How Do They Work?

Anti-reflective coatings significantly reduce the loss of light. Anti-reflective coatings also reduce the amount of glare from lights. Anti-reflective coatings are made possible by using techniques such as changes in phases and the dependence of reflectivity on refraction index.

17 Nov 2007

In Confocal Raman Imaging - Acquisition Time for One Raman Spectrum is a Crucial Value

This article describes how the use of a spectroscopic EMCCD as the detector can significantly reduce the acquisition time down to a few milliseconds per spectrum, as well as tremendously improving sensitivity.

From WITec GmbH 10 Nov 2007

States of Polarization - Linear, Circular and Elliptical Polarization

The polarization state is one of the fundamental characteristics that is required to study light.

4 Nov 2007

Methods Employed to Polarize Light

Light waves that vibrate in a single plane are referred to as polarized light, and the transformation of unpolarized light into polarized light is called polarization.

3 Nov 2007

Video Measuring System Allows Rapid Quality Control Checks for Automotive Manufacturers

DENSO Otomotiv Parcalari San.A.S. (DNTR), will be using the newly-launched, bench-top system to make rapid checks on the quality of bought-in metal and plastic components destined for use within its climate control systems.

From Nikon Instruments Inc. 2 Nov 2007