| UNITED STATES OF AMERICA, AS REPRESENTED BY THE SECRETARY OF ARMY Patent applications |
| Patent application number | Title | Published |
|---|
| 20110273764 | HIGH POWER AND HIGH GAIN FIBER AMPLIFIER - A device for amplifying optical signals propagating in optical fibers comprising a double cladding fiber amplifier having multiple gain stages, a port for coupling pump light into the double cladding fiber amplifier, and a double cladding fiber coupler for splitting the coupled pump light between the gain stages of the double cladding fiber amplifier. Also, a method for amplifying optical signals propagating in optical fibers comprising the steps of providing a double cladding fiber amplifier having multiple gain stages, coupling pump light into the double cladding fiber amplifier, and splitting the coupled pump light between the gain stages of the double cladding fiber amplifier. | 11-10-2011 |
| 20110233404 | OPTICAL SWITCH WINDOW FOR UNCOOLED FPA PACKAGE - In an uncooled camera having a focal plane array and an optical lens for focusing radiation from infrared radiation sources onto the focal plane array, the improvement comprising providing a thermochromic optical switch for blocking radiation from an extremely hot infrared radiation source from reaching the focal plane array. | 09-29-2011 |
| 20110188522 | REDUCTION OF TIMING JITTER IN A PASSIVE Q-SWITCHED SOLID STATE LASER - A method and device for reducing the timing jitter in a passive Q-switched Nd:YAG solid state laser by spatially selective bleaching a thin sheet of a saturable absorber of Cr | 08-04-2011 |
| 20110085242 | NEAR EYE DISPLAY PRISM OPTIC ASSEMBLY - An optical assembly uses a plastic prism with one flat surface and a collimating lens optic to provide the capability of imaging a color micro-display to the eye. The collimating optic and flat prism surface can allow for aberration-free diopter adjustment and an image with very low-magnitude, nearly-symmetric distortion. The collimating optic can also provide environmental protection of the prism involving an optical plastic device. The input illumination from the micro-display enters the prism, is reflected two times within the prism, exits the prism, and passes through the collimating optic before being viewed by the eye. Such an optical assembly can provide a field of view with eye-relief and exit pupil when viewing a full-color micro-display. | 04-14-2011 |
| 20100191077 | Method and System for Rapidly and Passively Identifying Changes in Number of Open Pores in the Skin of an Individual - In one aspect, there is disclosed a system and method for rapidly and passively identifying changes in the number of open pores in the skin of an individual in response to a stimulus without contacting the individual. This is accomplished by using a thermal camera that is sensitive in the mid-wave or long-wave infrared (3-5 or 8-14 μmeters) to observe and/or count the number of skin pores opening in response to questions being asked of the individual. | 07-29-2010 |
| 20100027103 | Zonal Lenslet Array - The invention includes a master lens, which initially focuses a laser pulse, and then the pulse passes through a zonal lenslet array, which uses different lenslet elements that provide for predetermined focal lengths so as to establish a three or two dimensional, predetermined dispersion of foci of the laser pulse. The zonal lenslet array of the present invention may be thought of as a variant of a Shack-Hartman wave front sensor, but used for an entirely different application. | 02-04-2010 |
