Patent application number | Description | Published |
20110235175 | POLARIZATION CONVERTING COLOR COMBINER - Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical elements can be configured as color combiners that receive different wavelength spectrums of light and produce a combined light output that includes the different wavelength spectrums of light. In one aspect, the received light inputs are unpolarized, and the combined light output is polarized in a desired state. In one aspect, the received light inputs are unpolarized, and the combined light output is also unpolarized. The optical elements can be configured to minimize the passage of light which may be damaging to wavelength-sensitive components in the light combiner. Image projectors using the color combiners can include imaging modules that operate by reflecting or transmitting polarized light. | 09-29-2011 |
20110273770 | COLOR COMBINER - Optical elements, color combiners using the optical elements, and image projectors using the color combiners are described. The optical elements can be configured as color combiners that receive different wavelength spectrums of light and produce a combined light output that includes the different wavelength spectrums of light. In one aspect, the received light inputs are unpolarized, and the combined light output is polarized in a desired state. In one aspect, the received light inputs are unpolarized, and the combined light output is also unpolarized. The optical elements are configured to minimize the passage of light which may be damaging to wave-length-sensitive components in the light combiner. Image projectors using the color combiners can include imaging modules that operate by reflecting or transmitting polarized light. | 11-10-2011 |
20130057786 | POLARIZED PROJECTION ILLUMINATOR - The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). The FEA is positioned to homogenize a polarized combined light after an unpolarized input light is converted to a single polarization state. | 03-07-2013 |
20130063701 | FLY EYE INTEGRATOR POLARIZATION CONVERTER - The present disclosure relates generally to an optical element, a light projector that includes the optical element, and an image projector that includes the optical element. In particular, the optical element provides an improved uniformity of light by homogenizing the light with lenslet arrays, such as “fly-eye arrays” (FEA). A first FEA is positioned to intercept and converge an unpolarized combined light before the light is converted to a single polarization state, and a second FEA is positioned to intercept and diverge the converted light having a single polarization state. | 03-14-2013 |
20130169893 | TILTED DICHROIC COLOR COMBINER II - The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include a tilted dichroic plate having at least two reflectors configured with light collection optics to combine at least two colors of light. | 07-04-2013 |
20130169894 | TILTED PLATE NORMAL INCIDENCE COLOR COMBINER WITH A POLARIZING BEAM SPLITTER - The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include at least two tilted dichroic plates having at least two reflectors configured with light collection optics to combine at least two colors of light. | 07-04-2013 |
20130169937 | TILTED DICHROIC COLOR COMBINER I - The disclosure generally relates to color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed color combiners include a tilted dichroic plate having at least two reflectors configured with light collection optics to combine at least two colors of light. | 07-04-2013 |
20130250570 | LED COLOR COMBINER - A light source combines colored light from different LED sources to provide white light output. Multiple LEDs emitting light at different peak wavelengths may be disposed on a flexible substrate, the LEDs being close to an aperture formed in the substrate. Multiple mirrors, including at least one dichroic mirror, are oriented to reflect light from the multiple LEDs into the aperture. The flexible substrate includes a dielectric layer having a cavity region and an adjacent neighboring region that is thicker than the cavity region. The aperture and the multiple LEDs are all disposed in the cavity region of the dielectric layer. An integrating rod may be coupled to the aperture to receive the reflected light from the multiple LEDs. | 09-26-2013 |
20140253849 | TITLED DICHROIC POLARIZING BEAMSPLITTER - The disclosure generally relates to beamsplitters useful in color combiners, and in particular color combiners useful in small size format projectors such as pocket projectors. The disclosed beamsplitters and color combiners include a tilted dichroic reflective polarizer plate having at least two dichroic reflective polarizers tilted at different angles relative to incident light beams, with light collection optics to combine at least two colors of light. | 09-11-2014 |
20140320822 | POLARIZING BEAM SPLITTERS PROVIDING HIGH RESOLUTION IMAGES AND SYSTEMS UTILIZING SUCH BEAM SPLITTERS - Polarizing beam splitters and systems incorporating such beam splitters are described. More specifically, polarizing beam splitters and systems with such beam splitters that incorporate multilayer optical films and reflect imaged light towards a viewer or viewing screen with high effective resolution are described. | 10-30-2014 |
20140326398 | METHOD OF MAKING POLARIZING BEAM SPLITTERS PROVIDING HIGH RESOLUTION IMAGES AND SYSTEMS UTILIZING SUCH BEAM SPLITTERS - Polarizing beam splitters, methods of making such beam splitters, and systems incorporating such beam splitters are described. More specifically, polarizing beam splitters, methods of making such beams splitters, and systems with such beam splitters that incorporate multilayer optical films and reflect imaged light towards a viewer or viewing screen with high effective resolution are described. | 11-06-2014 |