1. A precise, rapid shutter system comprising: a) a first pixelated spatial light modulator (SLM) configured to accept light from a light source, the first pixelated SLM configured to shutter the light and pass substantially only desired light impinging on the first pixelated SLM as a partially shuttered light beam, b) a second pixelated SLM configured to accept the partially shuttered light beam from the first pixelated SLM and to pass substantially only desired light impinging on the second pixelated SLM as a post-shutter light beam, wherein the first and second pixelated SLMs are operably connected to at least one controller containing computer-implemented programming that controls an onoff pattern of pixels in the first and second pixelated SLMs to display substantially the same shutter configuration and thus to simultaneously reject a same pattern of non-desired light from the light source or first pixelated SLM, respectively, and to pass desired light as the post-shutter light beam consisting substantially only of a desired selected light output.
2. The rapid shutter system of claim 1 wherein the system further comprises a spectrum former located upstream from the first pixelated SLM and configured to provide a spectrum from the light source to the first pixelated SLM, and the first and second pixelated SLMs are configured to pass a desired segment of light consisting essentially of a desired selected spectral output and a desired wavelength dependent intensity distribution.
3. The rapid shutter system of claim 2 wherein the system further comprises the light source and the spectrum former comprises at least one of a prism and a diffraction grating.
4. The rapid shutter system of claim 1 wherein the first and second pixelated SLMs are reflective SLMs.
5. The rapid shutter system of claim 1 wherein the first and second pixelated SLMs are transmissive SLMs.
6. The rapid shutter system claim 1 wherein the first and second pixelated SLMs are different portions of a single reflective pixelated SLM.
7. The rapid shutter system of claim 6 wherein the first and second pixelated SLMs are disposed substantially side-by-side on the single reflective pixelated SLM with a light blocking barrier therebetween.
8. The rapid shutter system of claim 7 wherein the light blocking barrier comprises at least one column of pixels of the single reflective pixelated SLM configured in an off position.
9. The rapid shutter system of claim 7 wherein the light blocking barrier comprises at least one reflective prism array.
10. The rapid shutter system of claim 1 wherein the system further comprises an optical projection device located downstream from the first reflective pixelated SLM to project light out of the lighting system as a directed post-shutter light beam.
11. The rapid shutter system of claim 2 wherein the desired segment is selected to substantially mimic a spectral output and a wavelength dependent intensity distribution of output energy for disease treatment.
12. The rapid shutter system of claim 2 wherein the desired segment is selected to substantially mimic a spectral output and a wavelength dependent intensity distribution of output energy for photodynamic therapy.
13. The rapid shutter system of claim 2 wherein the desired segment is selected to substantially mimic a spectral output and a wavelength dependent intensity distribution of output energy for disease diagnosis.
14. The rapid shutter system of claim 2 wherein the desired segment is selected to substantially mimic a spectral output and a wavelength dependent intensity distribution of output energy that can enhance contrast for detection or discrimination of a desired object in a tissue.
15. A stand alone luminaire sized to project light and providing precise, rapid shuttering, the luminaire comprising a housing containing at least: a) a high output light source, b) a first pixelated spatial light modulator (SLM) configured to accept light from the light source, the first pixelated SLM configured to shutter to the light and pass substantially only desired light impinging on the first pixelated SLM as a partially shuttered light beam, c) a second pixelated SLM configured to accept the partially shuttered light beam from the first pixelated SLM and to passing substantially only desired light impinging on the second pixelated SLM as a post-shutter light beam, and, d) a projection system optically connected to and downstream from the pixelated SLM in the first direction, wherein the projection system projects the desired segment as a directed light beam to illuminate the scene, wherein the first and second pixelated SLMs are operably connected to at least one controller containing computer-implemented programming that controls an onoff pattern of pixels in the first and second pixelated SLMs to display substantially the same shutter configuration and thus to simultaneously reject a same pattern of non-desired light from the light source or first pixelated SLM, respectively, and to pass desired light as the post-shutter light beam consisting substantially only of a desired selected light output.
16. The luminaire of claim 15 wherein the system further comprises a spectrum former located upstream from the first pixelated SLM and configured to provide a spectrum from the light source to the first pixelated SLM, and the first and second pixelated SLMs are configured to pass a desired segment of light consisting essentially of a desired selected spectral output and a desired wavelength dependent intensity distribution.
17. The luminaire of claim 15 wherein the first and second pixelated SLMs are different portions of a single reflective pixelated SLM, and wherein the first and second pixelated SLMs are disposed substantially side-by-side on the single reflective pixelated SLM with a light blocking barrier therebetween.
18. The luminaire of claim 15 wherein the luminaire further comprises a detector optically connected to and downstream from at least one of the pixelated SLMs, the detector also operably connected to a controller containing computer-implemented programming configured to determine from the detector whether at least one of the partially shuttered light beam and the post-shutter light beam contains a desired selected spectral output and a desired wavelength dependent intensity distribution, and adjust the onoff pattern of pixels in at least one of the pixelated SLMs to improve the correspondence between the desired segment and the desired selected spectral output and the desired wavelength dependent intensity distribution.
19. The luminaire of claim 18 wherein the luminaire further comprises a heat removal element operably connected to the light source to remove undesired energy emitted from the light source toward at least one of the reflective pixelated SLM, the optical element, and the spectrum former.
20. The luminaire of claim 15 wherein the system further comprises a spectral recombiner optically connected to and located downstream from the second pixelated SLM.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A wireless communication terminal comprising:
a housing having opposing faces and four side edges that extend therebetween;
a transceiver in the housing;
a transparent ring antenna electrically coupled to the transceiver that extends around at least three of the side edges of the housing, wherein the transparent ring antenna is configured so that at least a majority of incident light passes through the transparent ring antenna and comprises;
a transparent substrate; and
a conductive mesh on the transparent substrate electrically coupled to the transceiver; and
a light source in the housing, wherein the light source is configured to emit light through the transparent antenna so as to emerge from at least one of the side edges of the housing.
2. The wireless communication terminal of claim 1,
wherein the transceiver is a multi-band transceiver, and
wherein the transparent ring antenna is configured to transmit via a plurality of frequency bands responsive to signals generated by the multi-band transceiver.
3. The wireless communication terminal of claim 1, wherein the transparent ring antenna is less transparent and more conductive than the rest of the transparent ring antenna at a portion of the transparent ring antenna near an electrical feed coupled to the transparent ring antenna.
4. The wireless communication terminal of claim 1, wherein the transparent ring antenna is coupled to a dielectric frame that is between the transparent ring antenna and a backplate of the housing, wherein the dielectric frame comprises at least one of plastic, glass or ceramic materials.
5. The wireless communication terminal of claim 1, wherein the transparent ring antenna further comprises;
a first transparent mesh radiating element that extends along a first portion of the side edges of the housing and is configured to transmit and receive non-cellular signals for the radio transceiver; and
a second transparent mesh radiating element that extends along a second portion of the side edges of the housing and is configured to transmit and receive cellular signals for the radio transceiver.
6. The wireless communication terminal of claim 5, wherein the transparent ring antenna further comprises a third transparent mesh radiating element that extends along a third portion of the side edges of the housing and is configured to transmit cellular signals for the transceiver, wherein the second and third transparent mesh radiating elements are configured for multiple input multiple output (MIMO) communication.
7. The wireless communication terminal of claim 6, wherein the first transparent mesh radiating element extends around a first side edge of the housing, the second transparent mesh radiating element extends along a second side edge of the housing and a portion of a third side edge of the housing, and the third transparent mesh radiating element extends along a fourth side edge of the housing opposite the second side edge and a portion of the third side edge of the housing.
8. The wireless communication terminal of claim 5, wherein the first transparent mesh radiating element is configured to transmit at least one of local wireless networks, WiFi or global positioning system (GPS) signals.
9. The wireless communication terminal of claim 1, further comprising a printed meander-line inductor on a low-band branch of the conductive mesh.
10. The wireless communication terminal of claim 1, where the light source in the housing is separate from a display of the wireless communication terminal.
11. The wireless communication terminal of claim 10, further comprising:
a processor in the housing which is configured to select at least one color from a plurality of colors for the light source.
12. The wireless communication terminal of claim 11, further comprising:
a processor in the housing which is configured to select a flashing pattern for the light source.
13. The wireless communication terminal of claim 1,
wherein one of the opposing faces comprises a touch screen display that is configured to display a plurality of keys thereon and to accept user selection of a key, and
wherein the light which emerges from at least one of the side edges of the housing is configured to provide identification of alarms, activities, or individuals based on a color of the light that is emitted through the transparent antenna by the light source.