Researchers Submit Patent Application, "System, Method and Computer Program Product for Reducing a Thermal Load on an Ultraviolet Flash Lamp", for Approval
No assignee for patent application serial number 776245 has been made.
News editors obtained the following quote from the background information supplied by the inventors: "Embodiments relate to a light system and, more particularly, reducing a thermal load on the light system.
"In the photography industry, a flash lamp is typically used to illuminate a target so that the target may be photographed with sufficient illumination to obtain a clear image of the target. A flash lamp is a thermal device that generates light as a result of heat. The light generated is a brief sudden burst of bright light. Such flash lamps are designed to produce an intense broad band output of light covering all visible wavelengths and beyond as they may cover from near infrared (NIR) to ultraviolet-C (UVC).
"When used in video mode the flash lamp needs to run at repetition rates at least equal to the frame rate of the video camera, about 30 Hz or more. Sustained operation at these repetition rates causes the flash lamp to heat up. The heat generated effects the lamp negatively and results in a shortened lifespan for the flash lamp.
"Furthermore, because certain illumination requirements involve a. desire to have light at a certain spectrum, such as but not limited to an ultraviolet spectrum, to be emitted from the flash lamp, the flash lamp needs to be operated. at a higher thermal intensity. Doing so will further increase an amount of heat generated by the flash lamp.
"One such application where the ultraviolet spectrum may be used is with respect to forensic evidence collection. Currently, when seeking to identify latent forensics evidence, such as, but not limited to, material comprising a fingerprint, standard forensic techniques include using dusting, super-glue fuming, and/or other non-optical techniques. Using any of these forensic techniques however, disrupts or destroys the latent material; hence the fingerprint is lost from being available for further examination at a later time. In a similar manner, when suspicious fluids (including bodily fluids), which may also be classified as latent material, are found, collection methods usually result in destruction of the fluid.
"Manufacturers, owners, and users of flash lamps where light in a particular spectrum, such as but not limited to the ultra violet spectrum, would benefit from a system and method which would provide for the flash lamp to operate within the desired spectrum where a thermal load on the heat lamp is reduced during a single pulse duration of illumination and during repetitive durations of illumination."
As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "Embodiment relate to a system, method and computer program product for reducing a thermal load on flash lamp to produce a light in a particular spectrum. The system comprises a power supply configured to supply electrical power to a light source, and a circuit configured to activate the light source at a driving pulse to produce a light from the light source at a desired output spectral range so that a thermal load on the light source is reduced.
"The method comprises identifying a desired output spectral range of a light to be produced from an illumination source. The method further comprises determining a. driving pulse for the illumination source to extract the light at the desired output spectral range at a duration so that a thermal load on the illumination source is reduced; the duration of the driving pulse is of a width which reduces output from a non-desired output spectral range of the light. The method also comprises illuminating the illumination source at the determined driving pulse to produce the light at the desired output spectral range while reducing the non-desired output spectral range of the light.
"The computer program product in on a non-transitory processor readable storage medium, providing an executable computer program product, the executable computer program product comprising a computer software code that. When executed on a processor, the processor is caused to determine a driving pulse for the illumination source to extract the light at the desired output spectral range at a duration so that a thermal load on the illumination source is reduced, the duration of the driving pulse is of a width which reduces output from a non-desired output spectral range of the light. The processor is also caused to command the illumination source to illuminate at the driving pulse to produce the desired output spectral range.
BRIEF DESCRIPTION OF THE DRAWINGS
"A more particular description briefly stated above will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments and are not therefore to be considered to be limiting of its scope, the embodiments will be described and explained with additional specificity and detail through the use of the accompanying drawings in which:
"FIG. 1 shows a system used to determine temporal patterns of ultraviolet-C (UVC) and visible (VIS) to near infrared (NIR) wavelengths;
"FIG. 2 shows a graph illustrating signal output and duration of UVC and VIS to NIR determined from the system shown in FIG. 1;
"FIG. 3 shows a graphical representation of energy output of VIS to NIR in a first graph compared to UVC in a second graph;
"FIG. 4 shows a block diagram of a system illustrating an embodiment;
"FIG. 5 further shows a comparison between two repetitive driving pulses; and
"FIG. 6 discloses a flowchart illustrating a method for illustrating an embodiment,"
For additional information on this patent application, see: Miesak,
Keywords for this news article include: Patents.
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