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7609447 |
Programmable optical processing device employing stacked light modulator elements in fractional Fourier planes
A monolithic or hybrid integrated optical processor or optical processing system having a plurality of light modulating array elements, each controlled by respective control signals, and arranged...
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7593150 |
Diffraction optical element, light beam detection device, optical scanner and image forming apparatus
An optical element for diffracting a light beam includes a diffractive surface having a one-dimensional periodic structure. The periodic structure and transmissive diffraction efficiencies T′p(m)...
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7586686 |
Eyepiece for head mounted display system and method of fabrication
A monolithic optical element for an eyepiece in a head mounted display system has a body, in which a first surface of the body receives light from a display device, the light passes through a...
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7583442 |
Extended depth of field optical systems
An imaging system is characterized at least by an ambiguity function (“AF”) and a point spread function (“PSF”). The AF is a function of parameters u and v related to a misfocus parameter...
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7576926 |
Spill light removing device
A spill light removing device includes a first blocker which is located perpendicularly to a stream route of light being irradiated from a light source and blocks a stream of light that is incident...
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7576920 |
Transformable, applicable material and methods for using same for optical effects
Optical elements and methods of forming optical elements are described. In one example, a method applies a photosensitive ink to a substrate and exposes the ink to create an optical element, such...
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7565076 |
Lens module with grating
A lens module ( 100 ) includes a barrel ( 10 ), a lens ( 20 ), an image sensor module ( 30 ) and a grating ( 22 ). The lens is received in the barrel for focusing optical signals. The image sensor...
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7554732 |
Wavefront coded imaging systems
A singlet imaging system for imaging an object onto a detector includes a lens configured for producing transverse ray intercept curves which are substantially straight, sloped lines. A wavefront...
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7545573 |
Projector optical system, projector, and method for forming real image in use of projector optical system
A projector optical system for forming a real image by projecting an image of a display element has, sequentially from a screen side or an observation side, a first lens group having positive...
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7543940 |
Virtual input element image projection apparatus
A virtual input element image projection apparatus couples a suitable lens and an optical element to increase the diverging angle of a virtual input element image or generate a plurality of...
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7532772 |
Coding for compressive imaging
Embodiments of the present invention can estimate an image using an encodement provided by an optical component, an encodement provided by a detector array, or both an encodement provided by an...
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7491928 |
Extended optical traps by shape-phase holography
A method and system for establishing extended optical traps for commercial use. The method and system employs a diffractive optical element (DOE) to process a light beam wherein the DOE includes...
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7485835 |
Imaging system having a plurality of vortex lenses
An imaging system is provided. An imaging system comprises a plurality of vortex lenses aligned to cover a field of view and produce multiple images of an area near a point source.
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7474324 |
Printing apparatus using order-separation type optical modulator
Disclosed herein is a printing apparatus using an order-separation type optical modulator. The printing apparatus includes an illumination lens system, a diffraction type optical modulator, a...
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7458691 |
Holographic combiners for illumination of spatial light modulators in projection systems
Described is an optical device for combining multiple light sources in an optical projection system. One embodiment of the optical device includes at least two light sources having first and second...
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7446922 |
Interdigitating diffractive light modulator
Disclosed herein is an interdigitation-type diffractive light modulator. In the interdigitation-type diffractive light modulator of the present invention, each of a pair of ribbons has a plurality...
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7443586 |
Display device using single-panel diffractive light modulator
Disclosed herein is a display device using a single-panel diffractive light modulator. The display device includes a light source unit, a condensing unit, an illumination unit, a diffractive light...
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7443440 |
Color separator and imager
A color separator includes a polarization converting section for converting an incoming light ray into a linearly polarized light ray such that the polarization direction of the linearly polarized...
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7440158 |
Direct optical image projectors
An apparatus includes a reconfigurable spatial light modulator, a light source, and a transmission filter. The reconfigurable spatial light modulator is capable of producing spatially varying...
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7436595 |
Extended depth of field optical systems
A system for increasing the depth of field and decreasing the wavelength sensitivity and the effects of misfocus-producing aberrations of the lens of an incoherent optical system incorporates a...
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7418016 |
Method and apparatus for modifying the spread of a laser beam
An apparatus and method for modifying the spread of a laser beam. The apparatus comprises a laser source operable to generate a laser beam having a flux that exceeds a predetermined value and an...
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7400449 |
System and method for reduction of image artifacts for laser projectors
A system and method is disclosed for reducing visibility of image artifacts caused by diffractive elements in a laser projector having a structured diffractive device. At least two diffracted...
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7391570 |
Programmable optical processing device employing multiple controllable light modulator elements in fractional fourier transform planes
A programmable optical processing device employing a plurality of controllable light modulator elements. First and second optical elements are positioned to create an optical region therebetween...
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7391388 |
Segmented spectrum imaging system and method
A system and method for producing spectrally segmented images of object fields. In one embodiment the system includes an optical system that focuses light received from an object field along a...
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7388181 |
Apparatus for adjusting applied voltage in display system using diffractive optical modulator
Disclosed herein is an apparatus for adjusting applied voltage in a display system using a diffractive optical modulator. The apparatus for adjusting applied voltage can measure the intensity of...
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7348104 |
System and method for fabrication and replication of diffractive optical elements for maskless lithography
A method is disclosed for forming an array of focusing elements for use in a lithography system. The method involves varying an exposure characteristic over an area to create a focusing element...
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7292393 |
Variable illuminator and speckle buster apparatus
Disclosed is an apparatus for illuminating a sample. In one embodiment, this apparatus includes a laser for outputting an incident laser beam towards a sample and a first diffractive element having...
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7247826 |
Optical pickup apparatus
An optical path coupling member aligns an optical axis directed to a light condensing member of the first wavelength light having a shortest wavelength with that of the third wavelength light...
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7237940 |
Light guide plate with subwavelength grating and backlight module using the same
A light guide plate ( 30 ) has a light incident surface ( 305 ) for receiving light, a light emitting surface ( 301 ) for emitting light, a bottom surface ( 303 ) opposite to the light emitting...
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7232218 |
Bifocal multiorder diffractive lenses for vision correction
A bifocal multiorder diffractive lens having a lens body with one or more first regions having a first multiorder diffractive structure providing near vision correction, and one or more second...
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7213921 |
Color display device using dichroic filter
A color display device is disclosed. The color display device includes an illumination lens system, a diffractive light modulation system, a combining system, a Fourier filter system, and a...
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7194139 |
Image compression
A method of image compression, comprising: providing image-data encoding light; transforming said light from an image space to a transform space utilizing an optical component; and converting said...
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7177089 |
Objective, optical pickup apparatus and optical information recording and/or reproducing apparatus
An objective is used in an optical pickup apparatus which conducts reproducing and/or recording information for three different types of optical information recording media each having different...
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7154672 |
Optical film having controlled scattering/transmitting characteristics
An optical film composed by laminating a light scattering film 1 scattering and transmitting light and comprising at least two phases or more different in refractive index and a reflective...
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7142751 |
Methods and systems for chromatic dispersion compensation in switched grating WDM devices
Methods and system for chromatic dispersion compensation in disperser-combiner optical systems. The chromatic dispersion in disperser-combiner optical systems is substantially compensated by, after...
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7115849 |
Wavefront coding interference contrast imaging systems
Contrast Imaging apparatus and methods with Wavefront Coding aspheric optics and post processing increase depth of field and reduce misfocus effects in imaging Phase Objects. The general...
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7106510 |
Wavefront coded imaging systems
The present invention provides improved Wavefront Coding imaging apparatus and methods composed of optics, a detector, and processing of the detected image. The optics are constructed and arranged...
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7095560 |
Diffractive optical device, refractive optical device, illumination optical system, exposure apparatus and exposure method
An illumination optical system having a more simplified structure forms various quadrupole-shaped secondary light sources with two-time rotational symmetry with respect to an optical axis. The...
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7093938 |
Bifocal multiorder diffractive lenses for vision correction
A bifocal multiorder diffractive lens having a lens body with one or more first regions having a first multiorder diffractive structure providing near vision correction, and one or more second...
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7090964 |
Lithographic printing with polarized light
The present invention provides systems and methods for improved lithographic printing with polarized light. In embodiments of the present invention, polarized light (radially or tangentially...
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7085062 |
Apparatus for shaping a light beam
The invention relates to an apparatus for shaping a light beam, having at least two optically functional boundary surfaces that are arranged one behind another in the propagation direction (z) of...
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7057786 |
Electro-optic array interface
A grating coupled surface plasmon resonance optical modulator is disclosed. A electro-optic polymer dielectric is deposited on the metallic surface of a diffraction grating to provide a...
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7050635 |
Multi-dimensional pattern recognition by use of digital holography
A method and system for performing three-dimensional pattern recognition by use of digital holography is disclosed. The complex amplitude distribution generated by an object is recorded by...
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7050235 |
Diffractive optical spectral filter having arbitrary amplitude and phase response
A diffractive optical filter having a fractional level density s[j] and a transfer function C[m] that is an approximation to a desired Hermitian, passive transfer function B[m] is provided. The...
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7046444 |
Wave plate and optical device using the same
The present invention provides a wave plate capable of obtaining preferable phase conversion characteristic over a wide wavelength range. The wave plate includes an aluminum oxide film having...
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7042620 |
Light modulator using near-field
Disclosed is a spatial light modulator using a near-field. The spatial light modulator includes a light permeable substrate which has a predetermined first refractive index and allows incident...
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7024076 |
Optical packet header identifier, optical router incorporating the same therein, and optical routing method using the router
An optical packet header identifier having a simplified configuration and being superior in reliability, stability, and economical efficiency, an optical router incorporating the identifier...
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6999235 |
Diffractive optical element, method of producing same, and optical apparatus
A diffractive optical element simultaneously realizes a plurality of optical functions and is small in size and excellent in productivity. The diffractive optical element has a multilayer member...
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6995883 |
Security document with an optical security area
A security document, such as a banknote, includes an optical security area having a first periodic optical structure and a security sign provided on the security area and configured to circumscribe...
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6980365 |
Diffractive lens optical design
An optical system for use in a head-mounted display is provided which includes a microdisplay ( 4 ) and a magnifier ( 10 ) for producing a magnified image of the microdisplay for viewing by a human...
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