Abstract: Provided is a signal processing apparatus that estimates image distortion in a case where images are captured through a transmissive body allowing light to pass through. The signal processing apparatus includes a lens distortion estimation section that estimates lens distortion based on a location of a feature point in a first image and a second image of an object. The first image is captured by an imaging section through a transmissive body and a lens that allow light to pass through. The second image is free of transmissive body distortion caused by the transmissive body and free of the lens distortion caused by the lens. The apparatus further includes a transmissive body distortion estimation section that estimates the transmissive body distortion based on the location of the feature point in the first image and a third image that is obtained by removing the estimated lens distortion from the first image.

Abstract: A method and apparatus for illuminating at least one object appearing in a field of view (FOV). An illumination system includes an illumination source configured to provide illumination to illuminate a target of the object. A collimating lens is configured to collimate the illumination and to provide the illumination to a fixed multiple lens array (MLA). The fixed multiple lens array provides the illumination to a movable MLA. The movable MLA is configured to provide the illumination to the target to illuminate the target. The position of the movable MLA may be adjusted to alter the illumination full field angle.

Abstract: In various embodiments, an optical system is provided. The optical system includes two honeycomb condensers, which are connected one behind the other and in each case have two lenticular array sheets, which are connected one behind the other, and at least one diffuser which is connected downstream of the honeycomb condensers.

Abstract: A luminaire includes a lightguide panel that is configured to receive light from a light source through an edge thereof and emit light through major surfaces thereof. Further, the luminaire includes an electrochromic film that is disposed on one of the major surfaces of the lightguide panel to adjust an amount of light exiting through the one major surface by controlling an opacity of the electrochromic film. The opacity of the electrochromic film is controlled by controlling an electrical power supplied thereto. In another example, the electrochromic film is disposed on a major surface of a lens that is disposed below and spaced apart from a light source that emits light in a first direction. The opacity of the electrochromic film is controlled by controlling the electrical power supplied thereto to adjust an amount of light that is reflected by the lens to a second direction.

Abstract: Projection systems and/or methods comprising a blurring element are disclosed. In one embodiment, a blurring element may comprise a first plate having a pattern on a first surface and second plate. The first plate and the second plate may comprise material having a slight difference in their respective index of refraction. In another embodiment, a blurring element may comprise a first plate having a pattern thereon and a second immersing material. The blurring element may be placed in between two modulators in a dual or multi-modulator projector system. The blurring element may be configured to give a desired shape to the light transmitted from a first modulator to a second modulator.

Abstract: A light source device includes: a light source section; a diffusing device on which a portion of light emitted from the light source section is incident, the diffusing device diffusely emitting the portion of the light; a wavelength conversion device on which another portion of the light emitted from the light source section is incident, the wavelength conversion device diffusely emitting converted light at a wavelength different from that of the another portion of the light; a light combining device combining the portion of the light diffused by the diffusing device with the converted light emitted from the wavelength conversion device; and an auxiliary diffusing element located between the light source section and the diffusing device on an optical path of the portion of the light, the auxiliary diffusing element diffusing the portion of the light and causing the portion of the light to be incident on the diffusing device.

Abstract: Methods and systems for axial-scanning a sample. The method may include generating a scanning beam along a transverse scanning direction across the sample; acquiring radial positions of the generated scanning beam along the transverse scanning direction; and determining, based on the radial positions of the generated scanning beam and desired focal lengths, a phase mask so that the scanning beam at different radial positions along the scanning direction is focused to different axial positions of the sample along an optical axis transverse to the scanning direction.

Abstract: An illuminator includes a light source apparatus that outputs light, a light collecting system on which the light is incident, and a diffuser element on which the collected light flux having exited out of the light collecting system is incident. The light includes a first light beam flux that occupies an area including the optical axis of the light collecting system and a second light beam flux that occupies the area outside the first light beam flux. The position where the first light beam flux is focused in the direction of the optical axis by the light collecting system differs from the position where the second light beam flux is focused in the direction of the optical axis by the light collecting system.

Abstract: There are provided a lens barrel, an imaging device body, and an imaging device that can reduce a deviation in a blurred image of oblique luminous flux caused by an APD filter. A lens barrel includes a first lens optical system and a second lens optical system serving as lens optical systems including focus lenses, a diaphragm that changes the amount of an incident ray and emits the incident ray, a first APD filter that is disposed on a light-incident side of the diaphragm, and a second APD filter that is disposed on a light-emitting side of the diaphragm. Since the amount of a reduced upper ray L1 of oblique luminous flux and the amount of a reduced lower ray L2 thereof are made to be substantially equal to each other by the first APD filter and the second APD filter, a deviation of a blurred image is reduced.

Abstract: A projection apparatus has an optical device capable of diffusing coherent light beams, an irradiation unit to irradiate coherent light beams to the optical device so that the coherent light beams scan the optical device, a light modulator to generate a modulated image using coherent light beams incident on and diffused at respective points of the optical device from the irradiation unit, and a projection optical system to project a modulated image generated by the light modulator onto a scattering plane. The light modulator has a plurality of micromirrors provided for each pixel, to switch a reflection angle of each coherent light beam from the optical device, and a reflection angle controller to control a timing of switching a reflection angle of each of the plurality of micromirrors so that the timing becomes irregular for each frame period that is a time unit for generating the modulated image.

Abstract: A light diffusion reflecting plate having a high degree of whiteness and excellent light diffusion properties and antiglare properties includes a substrate having thereon at least a ground coat layer and a top coat layer in contact with this ground coat layer. The ground coat layer is a white coating film layer. The top coat layer contains a white pigment from 2 to 15% by mass and two kinds of spherical particles, i.e., (A) a spherical particle having an average particle size of from 5 to 30 ?m and (B) a spherical particle having an average particle size of from 15 to 45 ?m, each of which is contained in an amount of from 5 to 17% by mass. A difference in the average particle size between the spherical particle (A) and the spherical particle (B) is 10 ?m or more.

Abstract: An illumination apparatus is provided, including a light source unit which includes at least one laser diode emitting light of a single color; a diffuser plate which disperses the light emitted from the light source unit; a fly-eye lens array which transmits light dispersed by the diffuser plate; and a fluorescent unit on which light transmitted by the fly-eye lens array is incident and which emits white light.

Abstract: An image display device includes: a light source that emits a beam having a spreading angle in a first direction and a spreading angle in a second direction, which is smaller than the spreading angle in the first direction, in a direction perpendicular to the first direction; an afocal optical system member that has a focal point and changes the beam emitted by the light source into a parallel beam; an anisotropic diffusion plate that is arranged at the focal point and that widens at least the spreading angle in the second direction; a vibration unit that vibrates the anisotropic diffusion plate; a fly-eye lens array on which the parallel beam emitted from the afocal optical system member becomes incident; an image display element that modulates the beam that has passed through the fly-eye lens array into image display light.

Abstract: An imaging lens system is provided. The imaging lens system includes a first lens that includes a convex object side surface and has a positive refractive power; a second lens that includes a concave image plane side surface and has a negative refractive power; a third lens that has a positive or negative refractive power; a fourth lens that includes a convex image plane side surface and has a positive or negative refractive power; a fifth lens that includes a convex image plane side surface and has a negative refractive power; and a sixth lens that has a negative refractive power, wherein the first through sixth lenses are arranged in order from an object side to an image plane side.

Abstract: Provided are an illumination device and a display apparatus capable of reducing generation of an interference pattern, while achieving downsizing and enhancing light use efficiency. An illumination device includes: a light source section that includes a laser light source; an optical device disposed on a light path through which laser light from the laser light source travels; an optical member that outputs illumination light; and a driving section that displaces a relative position between the optical device and the optical member to vary at least one of an incidence position and an incidence angle, in an incidence surface of the optical member, of the laser light.

Abstract: The present invention relates to an optical member, comprising: a light incidence surface; and a light-emitting surface which comprises a patterned portion intended for adjusting the intensity of light and formed at an area corresponding to a light source, and an adhesive portion disposed in an area other than the patterned portion. When the optical member of the present invention is applied to a backlight unit, the patterned portion, which diffuses the light from the light source, is formed in the area corresponding to the light source so as to effectively diffuse the light from the light source into the peripheral area.

Abstract: A beam, expansion unit is configured to expand a beam of laser light emitted from a laser light source into an ellipse. A beam irradiation position moving unit is configured to translate a mirror by a driving unit to sequentially move the laser light expanded into the ellipse on the surface of an integrator in a minor-axis direction of the ellipse. A reflective liquid crystal device is configured to modulate the laser light. A projection lens is configured to project the laser light modulated by the reflective liquid crystal device.

Abstract: An optical system has projector optics aligned on a projection axis that is orthogonal to an offset axis. A first laser is positioned in a first plane orthogonal to the projection axis. First folding optics are positioned in the first plane to fold a first beam from the first laser to a first portion of the projector optics. A second laser is in a second plane parallel to, and offset along the offset axis from, the first plane. Second folding optics is positioned in the second plane to fold a second beam from the second laser to a second portion of the projector optics to synthesize the first and second beam.

Abstract: A high power microscopy illumination system is disclosed, including a solid state illumination source. A diffusing collection lens having a diffusing surface is configured to collect and diffuse light emission from the solid state illumination source. An emitting surface is disposed substantially opposite the diffusing surface. An optical coupling element couples the light emission from the diffusing collection lens emitting surface along an optical axis to an optical output. The diffusing collection lens provides improved uniformity of illumination with direct coupling, without significant power loss.

Abstract: A display device (10) having a display element (20), such as a light-emitting device or a light-reflecting device, such as a MEMS device, and a glass touch panel (30) covering the display element, the outer surface (50) of the panel being textured. The panel is thin, having a thickness of 1.1 mm or less between the inner (40) and outer (50) surfaces.

Abstract: In an illumination arrangement (1) for an image field delimiting frame (2) of a mixed-image viewfinder camera having an observation beam path (9) and a viewfinder beam path (3), the illumination arrangement is arranged in the viewfinder beam path (3) in the direction of light upstream of the image field delimiting frame (2), the illumination is formed by an active light source (14, 14?) and the viewfinder beam path (3) is mechanically delimited (16, 22) within the illumination apparatus (1) with respect to the light source (14, 14?).

Abstract: An image projector includes a light source for displaying light and a diffusing screen coupled to an in-plane vibrator. The diffusing screen is positioned to receive the display light from the light source and generate phase-modulated display light. The image projector also includes a collimating element positioned to receive the phase-modulated display light. The image projector further includes a display panel positioned to receive the phase-modulated display light after being collimated by the collimating element. The display panel is configured to generate a projectable image using the phase-modulated display light.

Abstract: An integrating optical system having a chamber, the chamber having an aperture and at least one portion having a diffuse reflective material; a light source; and a diffuse transmissive baffle. The baffle is located in relation to the chamber such that it is also located in an optical path between the light source and a treatable target. A light-ray originating from the light source is diffusely transmitted from the diffuse transmissive baffle and impinges on an interior surface of the chamber before impinging on the treatable target.

Abstract: A lens includes a main body and a potting material. The main body includes a first major face, a second major face and at least one cavity arranged on the first major face. The potting material is arranged in the cavity and includes at least one diffuser which scatters radiation of at least one wavelength range.

Abstract: A hybrid lens for a solid state light source device is provided. The hybrid lens includes a first component and a second component. The first component has a first side and a second side oppositely disposed thereto. The first side is positioned facing a solid state light source. The second component is attached to the first side of the first component. The first component includes a flame retardant material, such as a glass or a filled polymer. The second component includes a non-flame retardant material, such as an unfilled polymer.

Abstract: A highly color saturated light modulator includes a transparent substrate, printed image layer and a protection layer on the printed surface. The degree of color saturation of images on the modulator is greater than 40% and overall transmission between 15% and 95%. Lighting devices with the light modulator can be designed to meet desired light emitting intensity and direction by integrating micro-structures to the transparent substrate.

Abstract: A projection display device which displays an image by projecting the image on a screen includes a laser light source for emitting coherent light, a display device for forming an image to be displayed on a screen in an area illuminated by a luminous flux from the laser light source, a first diffusion plate for diffusing a luminous flux, and a second diffusion plate for diffusing a luminous flux. The first diffusion plate is provided in at least one of a conjugate position of the laser light source or the vicinity of the conjugate position in the optical path of the optical system including the laser light source through the screen. The second diffusion plate is provided in at least one of a conjugate position of the display device and the vicinity of the conjugate position.

Abstract: The present invention provides an optical element, comprising: a side surface where incident light undergoes diffuse reflection inside the optical element, between the outline of a top optical surface and a bottom optical surface; and an inclined surface for total reflection of diffuse reflection from the side surface, formed at least between the side surface and the bottom optical surface.

Abstract: A light emitting device package is disclosed. The light emitting device package includes a body having a cavity, a light source mounted in the cavity, and at least one optical sheet located on the body to cover the cavity. The optical sheet includes a first layer and a second layer formed on the first layer, wherein the second layer includes a plurality of linear prism parts. At least one of the first layer and the second layer contains a light diffusive member. The light emitting device package has enhanced light emission efficiency and light distribution uniformity.

Abstract: An optical system includes a positive lens unit, wherein the positive lens unit includes an optical element containing a base material and minute particles that are mixed with the base material and have Abbe number that is lower than that of the base material, and the minute particles are higher in density at a peripheral portion of the optical element than on an optical axis of the optical element.

Abstract: Disclosed herein is a multi-layered light diffusion plate, in which the multi-layered light diffusion plate is manufactured by coextruding a transparent layer comprising an amorphous transparent thermoplastic resin and a light diffusion layer comprising an amorphous transparent thermoplastic resin and transparent particles, so that the manufacturing process thereof is simple and efficient, and which has excellent light transmissivity and light diffusivity, high brightness, and high brightness uniformity, thereby improving viewing angle characteristics, and to a liquid crystal display device comprising the same.

Abstract: Disclosed herein is an optical navigation module, including: an LED that is a light source diffusing light; a lens having a light transmitting part and a light receiving part integrally formed and refracting and collecting light diffused from the light source; a window transmitting light diffused from the LED and light reflected by a subject; and a sensor receiving light reflected from the window, detecting the received light, and outputting the detected light as a signal.

Abstract: An image formed on a reflecting optical modulator is magnified by a projection optical system and projected on a backside of a transmission-type screen. The projection optical system is constituted so that a product of an F-number and a projection magnification of the projection optical system is less than 400.

Abstract: A method and apparatus involve using optics to direct radiation from a scene along an optical axis, the optics having a chromatic dispersion that is a function of a characteristic spectral signature for the scene so as to produce a chromatic blur that, for an extended depth-of-field region, is substantially spatially constant along the optical axis. A different method involves: identifying for a characteristic scene a spectral response curve; determining a plurality of different wavelength nodes dividing the area under the spectral response curve into a plurality of substantially equal segments; generating a mapping relationship that maps each of the wavelength nodes to a respective one of a plurality of focal points spaced substantially equally along the optical axis; and configuring the optical system as a function of the mapping relationship.

Abstract: A manufacture method of a non-spherical lens module includes: firstly, forming a housing having a row of through holes running through a first surface and a second surface thereof; secondly, providing and filling liquid waveguide with the through holes and forming two convex portions at jointing positions of the through holes and said two surfaces respectively; lastly, cooling the liquid waveguide to form the waveguide in the through hole, cooling the two convex portions to form first and second lens portions.

Abstract: An optical film has multi-coated layers. Diffusion layers are used to scatter light. Each diffusion layer has an interface microstructure. A condensing optical layer is used to concentrating light. A design of a multi-coating technology is thus used for scattering and concentrating light. By integrating scattering and concentrating materials in a single optical film, cost is effectively reduced. By using diffusion layers having interface microstructures, interface-dominating mechanism, not only hybrid optical performance with luminance and haze is effectively enhanced; but also quality variations owing to particles added or film warp and scoring on the beneath optical film owing to particles coated are reduced.

Abstract: An imaging device able to simplify an optical system while maintaining a high frame rate, but without needing expensive blurring restoration processing hardware, able to reduce costs, and in addition capable of obtaining a restored image little influenced by noise, and a method of same, which bypasses blurring restoration processing of an image processing device 150 by a switching unit 140 to perform camera signal processing of a camera signal processing unit 160 at the time of a through image and performs blurring restoration processing at the image processing device 150, then performs camera signal processing at the camera signal processing unit 160 to display the image only at the time of capturing an image.

Abstract: The present invention provides an optical element, comprising: a side surface where incident light undergoes diffuse reflection inside the optical element, between the outline of a top optical surface and a bottom optical surface; and an inclined surface for total reflection of diffuse reflection from the side surface, formed at least between the side surface and the bottom optical surface.

Abstract: An LED module includes an LED and a lens fixed with the LED for refracting light emitted by the LED. The lens has a center axis and a concaved inner face for incidence of the light and an opposite convex outer face for the light refracting out thereof. A peak intensity for light generated by the LED occurs within 52-67 degrees off the center axis when the light leaves the outer face.

Abstract: In one embodiment, a display device includes a movably suspended diffuser screen, and a voice-coil mechanism coupled to the diffuser screen. A signal-processing device, such as a microprocessor, is coupled to a driver circuit to produce a drive signal at an output terminal for the voice coil in response to a voltage sensed across the voice coil. The driver circuit includes shutdown control to drive its output terminal to a high-impedance state to accommodate sensing voltage across the voice coil. Thus, the signal for the voice coil is produced by the signal-processing device in a closed-loop feedback arrangement without the need for separate position-sensing elements. In a preferred arrangement, a second voice coil is coupled to the diffuser screen and to the signal-processing circuitry to produce a second signal for the second voice coil to accommodate generating a circular motion for the diffuser screen without stationary points.

Abstract: Briefly, in accordance with one or more embodiments, beam position diversity or beam offset diversity in pupil space performs the complement to angular diversity by maintaining angular content of a beam while changing its position and/or polarization properties in pupil space over time.

Abstract: A lens includes a main body and a potting material. The main body includes a first major face, a second major face and at least one cavity arranged on the first major face. The potting material is arranged in the cavity and includes at least one diffuser which scatters radiation of at least one wavelength range.

Abstract: Optical elements having components made from high refractive index materials (RI?1.6) and lamp assemblies incorporating such elements. Various optical elements, such as total internal reflection lenses, can be fabricated from materials having a higher index of refraction than materials typically used in such elements. The compact optical elements have at least one internal reflection surface that directs radiant energy (e.g., light) from a receiving end to a transmitting end. By using a high refractive index material, a lens can be fabricated that directs a greater portion of the light emitted from a source into the lens toward the transmitting end of the lens. Thus, less of the light spills out of the lens at a surface where emission is not intended, reducing the number of lossy bounces needed to direct the light in a particular direction.

Abstract: A projection display apparatus includes a light source, a plurality of light modulating elements that respectively modulate different color components of light emitted from the light source, a plurality of light diffusing elements that are disposed on sides near the light source with reference to the respective light modulating elements, a light integrating element that integrates the different color components modulated by the light modulating elements, and a projection optical element that projects light resulting from the different color components integrated by the light integrating element.

Abstract: A projection display apparatus is provided that is capable of reducing speckle noise, with no image of a flaw or dust noticeable in or on a screen even if it exists in or on an optical component. The projection display apparatus includes a glass rod that makes uniform an optical beam emitted from a laser beam source; a lens that focuses an optical beam passing through the glass rod; a diffusion layer that provides an optical path difference distribution to the optical beam focused using the focusing element, the diffusion layer being optically conjugated with an incident end of the glass rod by the focusing element; a display device that spatially modulates the optical beam provided with the optical path difference distribution by the diffusion layer; and a magnification projection lens that projects on a screen an optical beam modulated by the modulator.

Abstract: A projection apparatus and image display apparatus. The apparatus includes a three-color light source that emits a plurality of color lights having different wavelengths, and a diffraction type optical element that performs diffusion forming of individual color lights. A field lens makes the diffusion-formed individual color lights into parallel lights, and a liquid crystal panel has a microlens array with a plurality of microlenses arranged in a matrix at the incident regions of the individual parallel color lights. A pixel section has three pixel openings arranged oppositely to the individual microlenses.

Abstract: A projection device includes a diffuser and a light source system. The light source system includes a light source, a dichroic element, an actuator, and a reflector. The light source generates a light beam that is directed to the dichroic element. The dichroic element forms first and second individual light beams from the light beam. The first individual light beam is transmitted to the diffuser. The second individual light beam is reflected from the reflector to the diffuser. The actuator is fixed to the reflector and has a removal frequency exceeding 20 Hz.

Abstract: A projection type display apparatus is provided that is safe even when a person looks directly into a laser beam. A laser operation control unit sets the output power of at least one laser source so that intensity A (mW/mm2) of the laser beam on at least one spatial light modulation element satisfies relationship of A<686×B2 when numerical aperture B on image side of an illumination optics system is set.

Abstract: A laser image display including a laser light source emitting laser light, a beam deflector element for receiving laser light and deflecting its advancing direction, a beam deflecting element control section for controlling the degree of deflection performed by the beam deflector element, an optical integrator for receiving and guiding the deflected laser light to output from its outputting end face, a pseudo surface light source element for scattering the deflected laser light, and a modulation element for receiving and modulating the laser light scattered by the false surface light source element.

Abstract: A light source device for a display device for projecting an image on a screen is provided, the light source device for display device including a light source unit operable to output light; an image outputting unit operable to output an image by giving an image signal to the light; and a control circuit operable to switch the image output from the image outputting unit between a normal image and a mirror reversed image formed by reversing the normal image right and left by controlling the image signal, such that outputting type is switched between a front projection in which the image is projected onto the screen from a front on the same side as the viewing side, and a rear projection in which the image is projected onto the screen from a rear plane on the opposite side to the viewing side.