Charge-coupled device video cameras

Image shuttering, in video camera charge-coupled devices, 19 147 Images, nature of metallic silver in,... 

Sihcon charge coupled devices (CCDs), commonly used in soHd-state video cameras and in research appHcations, are being appHed to low light level spectroscopy appHcations. The main advantage of area array CCDs over linear photodiode detectors is the two-dimensional format, which provides simultaneous measurements of spatial and spectral data. 

Yarin and Weiss[357] also determined the number and size of secondary droplets, as well as the total ejected mass during splashing. Their experimental observations by means of a computer-aided charge-coupled-device camera and video printer showed that the dependence of the critical impact velocity, at which splashing initiates, on the physical properties (density, viscosity, and surface tension) and the frequency of the droplet train is universal, and the threshold velocity may be estimated by ... 

Recently, an automatic color video image analysis system was developed to quantify antigen expression (androgen receptor) (Kim et al.,T999a). This system provides a linear relationship between the antigen content and mean optical density of the immunoperoxidase-substrate reaction product. Titration of antibody, concentration, and reaction duration of the substrate can be optimized with this system. The imaging hardware consists of a Zeiss microscope, a three-chip charge-coupled-device camera, a camera control board, and a Pentium-based personal computer. 

Charge Coupled Device (light-sensitive element in modern video cameras) Chlorinated hydrocarbon... 

A fundus camera was modified to provide video angiograms and to deliver one laser beam used to release the content of the liposomes and another laser beam to activate the photosensitizer. The first laser was also used to illuminate the fundus. The output of the charge-coupled device (CCD) camera was fed into a video image enhancer and recorded on magnetic tapes with a high-frequency video recorder. Later, the tape was played back, and video sequences were digitized with a frame grabber for subsequent analysis. 

Because charge-coupled devices are sensitive to infrared light, they can be used in some solid-state night-vision devices—and some commercial cameras and video cameras have night-vision capability. 

Shown here is a charge-coupled device sensor used inside a monochrome distal video camera. (GIPhotoStock/ Photo Researchers, Inc.)... 

There are four types of position-sensitive detectors Wire detectors (one- and two-dimensional), video detectors. CCD (charge coupled device chip), and image-plate detectors. The wire detector is bused on the proportional counter principle voltage pulses produced by quanta incident at different points along the wire take different times to reach its two ends. The travel times are derived from the profile of the sum of the two pulses. In the video counter, a phosphor layer generates light flashes where X-ray quanta are incident, and the flashes are picked up by a television camera. The CCD chip is covered by a scintillation foil, which... 

The construction of our homemade SAR instrument is shown in Fig. 4. The source is a 17-mW polarized-beam He-Ne laser, (Melles Griot, A = 632.8 nm) and a PD200 silicon photodiode (Edmund Industrial Optics) is used as a detector. The same setup can be used in BAM arrangement, replacing the detector with a charge-coupled-device video camera. In the vertical arrangement... 

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