The invention and establishment of the wet collodion process and the dry-plate negative led to great advancements in the fields of astronomy and medicine in the second half of the nineteenth century.
By James Brookes
23 Apr 2015
Photographs are now such a commonly used visual form of capturing and categorising our experiences and surroundings that it is difficult to imagine a world in which photography did not operate.
By James Brookes
8 Apr 2015
In this interview, Mark Donaghy from Raptor Photonics talks to AZoOptics about Ninox, their new cooled SWIR InGaAs camera. With the latest sensor technology and air/water cooling to -20°C, the Ninox is an attractive proposition for many advanced imaging applications.
With advantages of speed, flexibility and accuracy at a reasonable cost, galvanometer-based optical scanners or ‘galvos’ are the ideal positioning solution for a myriad of scientific, imaging, industrial and medical laser applications.
Optical imaging is a technology which explains the characteristics of infrared, ultraviolet and visible light. It is a non-invasive technique which uses non-ionizing radiation in order to obtain images of tissues and organs. These images can be used by clinicians in order to diagnose and prevent diseases.
Spontaneous parametric down conversion is as an optical quantum process in which an incident photon is converted into pairs of entangled photons by a non-linear medium.
Attenuation is defined as the gradual loss in the intensity of any kind of flux when it passes through a medium.
Optical resolution is the physical resolution at which an imaging device can capture an image. The term is mostly used in connection to optical scanners and digital cameras.
In the field of optics, optical path length or optical distance is the product of the geometric length of the path light follows through a system, and the index of refraction of the medium through which it propagates.
An insight on the positioning mechanisms and limitations is critical to achieve precision from the positioning devices. This article describes about the motion control technology employed in Zaber's positioning devices, quantification of inaccuracies and strategies to reduce the effects.