Miniature Cameras

Variable-focus liquid lens for miniature cameras

The meniscus between two immiscible liquids can be used as an optical lens. A change in curvature of this meniscus by electrowetting leads to a change in focal distance. It is demonstrated that two liquids in a tube form a self-centered lens with a high optical quality. The motion of the lens during a focusing action was studied by observation through the transparent tube wall. Finally, a minia...

Application of Miniature Cameras in Video Straightness Monitor Systems

Miniature monochrome video cameras made by Chinon and VVL Corporations are reviewed for application as sensors in Video Straightness Monitor systems. Test frames and scans are presented for three different cameras in a VSM system running across an 8-meter optical baseline.

A preliminary study to estimate contact rates between free-roaming domestic dogs using novel miniature cameras

Information on contacts between individuals within a population is crucial to inform disease control strategies, via parameterisation of disease spread models. In this study we investigated the use of dog-borne video cameras-in conjunction with global positioning systems (GPS) loggers-to both characterise dog-to-dog contacts and to estimate contact rates. We customized miniaturised video camera...

Use of Miniature Thermal Cameras for Detection of Physiological Stress in Conifers

Tree growth and survival predominantly depends on edaphic and climatic conditions, thus climate change will inevitably influence forest health and growth. It will affect forests directly, for example, through extended periods of drought, and indirectly, such as by affecting the distribution and abundance of forest pathogens and pests. Developing ways of early detection and monitoring of tree st...

Micropropagation of miniature rose cultivars