Patent application number | Description | Published |
20090016162 | Moving object detection apparatus - A moving object detection apparatus comprises a transmitter, a receiver, a detection portion, a binary conversion portion and a judgment portion. The transmitter emits energy waves with a first frequency to a detection area. When receiving incoming energy waves from the detection area, the receiver generates an electric signal corresponding to the incoming energy waves. The detection portion obtains a detection signal from a reference signal with the first frequency and the electric signal. The binary conversion portion compares the detection signal with a conversion threshold signal to obtain a binary signal. The judgment portion judges whether or not a moving object approaching or leaving the receiver exists in the detection area based on the binary signal. | 01-15-2009 |
20100052972 | MOVING OBJECT DETECTION SYSTEM - A moving object detection system is provided with an existence detection part, an integrating part and an existence judgment part. Based on first and second detection signals, the existence detection part calculates a rotation angle of each transition factor that is obtained from the first and second detection signals and rotates around the origin in a two-dimensional coordinate system. The existence detection part is configured so that the rotation angle becomes less than 90 degrees. The integrating part integrates each rotation angle to obtain an integrated angle. The existence judgment part judges whether or not a moving object approaching or leaving a receiver of the device exists in a detection area based on the integrated angle and a threshold angle. | 03-04-2010 |
20100225332 | PROXIMITY SENSOR - A proximity sensor has an oscillation circuit, an amplitude measurement circuit, a control circuit and a signal processing circuit. The oscillation circuit has an LC resonant circuit and an oscillation control circuit that is configured to supply an electric current to the LC resonant circuit to generate oscillating voltage across the LC resonant circuit. The amplitude measurement circuit is configured to produce an amplitude signal corresponding to the amplitude of the oscillating voltage. The control circuit is configured to set the negative conductance of the oscillation control circuit to a critical value by which the LC resonant circuit can oscillate based on the amplitude signal. The signal processing circuit is configured to produce a distance signal corresponding to the distance between an object and the sensing coil based on a parameter associated with the negative conductance. | 09-09-2010 |
20120087210 | MOVING OBJECT DETECTING APPARATUS - A moving object detecting apparatus includes: a transmitting/receiving unit for radiating an ultrasonic wave and receiving a reflective wave reflected from an object present in a monitoring space; a phase detection circuit for mixing reference signals with a reflective signal and obtaining a pair of Doppler signals each having an amplitude depending on a phase difference from the reference signal, each of the Doppler signals having a different phase from each other; a rotation angle calculation unit for calculating a rotation angle; a cumulative addition unit for accumulating the rotation angle; and a comparison unit for comparing the accumulated rotation angle with a threshold value. In the moving object detecting apparatus, a single ultrasonic vibrator is commonly used in the transmitting unit and the receiving unit. | 04-12-2012 |
Patent application number | Description | Published |
20080251873 | SOLID-STATE IMAGING DEVICE, MANUFACTORING METHOD THEREOF AND CAMERA - A solid-state imaging device which includes a color filter having excellent color reproduction, a manufacturing method thereof and a camera are provided. | 10-16-2008 |
20080265349 | Solid-State Image Sensor - An object of the present invention is to provide a solid-state image sensor including a filter membrane that has excellent light resistance and can be thinned. A solid-state image sensor | 10-30-2008 |
20080272449 | Solid-state image pickup device, solid-state image pickup device manufacturing method and camera - A solid-state image pickup device | 11-06-2008 |
20090273046 | Process for Producing Solid-State Image Sensing Device, Solid-State Image Sensing Device and Camera - In the formation of a multilayer interference filter that is included in a solid-state imaging device, at the outset, a titanium dioxide layer ( | 11-05-2009 |
20090321865 | SOLID-STATE IMAGING DEVICE AND CAMERA - A solid-state imaging device having a color filter with high color reproducibility even in the case of using lighting of low color temperatures. The solid-state imaging device has a plurality of pixels arranged two-dimensionally, and comprises a color separation filter which allows transmission of light of a predetermined wavelength in incident light for each of the plurality of pixels, wherein the color separation filter includes: a visible-light and near-infrared filter having transmission bands in regions of a visible lo wavelength band and a near-infrared wavelength band; and a near-infrared normalization filter laminated with the visible-light and near-infrared filter, wherein the near-infrared normalization filter is substantially transparent in the visible wavelength band and a first near-infrared wavelength band, and is substantially not transparent in a second near-infrared wavelength band between the visible wavelength band and the first near-infrared wavelength band. | 12-31-2009 |
20120147292 | BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME, AND LIGHT-EMITTING DIODE USED THEREFOR - There are provided light-emitting layer provided on transparent substrate and emitting light of a specific wavelength, mirror layer formed on a light exit side of light-emitting layer and including a function of reflecting light emitted from light-emitting layer, reflecting layer provided on a side of substrate in a manner to interpose light-emitting layer between mirror layer and reflecting layer; and a diffusion layer that diffuses light emitted from light-emitting layer is disposed between mirror layer and reflecting layer. | 06-14-2012 |
20120147295 | BACKLIGHT UNIT, LIQUID CRYSTAL DISPLAY APPARATUS USING THE SAME, AND LIGHT-EMITTING DIODE USED THEREFOR - There are provided light-emitting layer provided on transparent substrate and emitting light of a specific wavelength, first reflecting layer formed on a light exit side relative to light-emitting layer and including a function of reflecting light emitted from light-emitting layer, second reflecting layer provided on a side of substrate in a manner to interpose light-emitting layer between first reflecting layer and second reflecting layer; light diffusion layer that diffuses light emitted from light-emitting layer is disposed between first reflecting layer and second reflecting layer; | 06-14-2012 |
20120175648 | DISPLAY PANEL DEVICE, DISPLAY DEVICE, AND METHOD OF MANUFACTURING DISPLAY PANEL DEVICE - Provided is a display panel device including a pixel unit including a luminescent layer, and a lens that covers a luminescent region of the luminescent layer placed above the pixel unit and that transmits light emitted from the luminescent layer. The height between a luminescent face of the luminescent region and an apex of the lens is uniform along the straight line in the long axis direction of the luminescent region. Furthermore, at both end parts of the lens, a cross-section of the light emitting side corresponding to the long axis direction of the luminescent region has a shape of an elliptic arc having a predetermined curvature. | 07-12-2012 |
20120218173 | DISPLAY PANEL APPARATUS AND MANUFACTURING METHOD OF DISPLAY PANEL APPARATUS - A display panel apparatus includes pixels. Each pixel includes an organic luminescent layer between an upper electrode and a lower electrode and is configured to emit a red, a green, or a blue light. A glass substrate is above the upper electrode. A lens sheet is between the pixels and the glass substrate and includes lenses and a base. Each lens corresponds to a pixel and protrudes from the base. Partitions are between the glass substrate and the lens sheet for partitioning the lenses. The partitions have a first height that is greater than a second height of the lenses. The base includes trenches between the lenses. The trenches are recessed in a direction opposite the lenses. The partitions are in the trenches. Each partition has a cross-section that includes an upper side that has a different length than a bottom side and lateral sides that are tilted. | 08-30-2012 |
20120287375 | SURFACE LIGHT SOURCE DEVICE, LIQUID CRYSTAL DISPLAY DEVICE, AND LENS - The present invention relates to a surface light source, including a light source section made up of plural light emitting diodes and lenses that expand light from these light emitting diodes. The lens in the light source section has a light incident surface on which light from the light emitting diode is incident with an optical axis at a center, and a light exit surface that expands and emits the incident light. The light incident surface has a continued depressed surface, while the light exit surface has a continued projected surface. The lens performs such that “sag Y” decreases from a maximum value “sag Y | 11-15-2012 |
20120299985 | Luminous Intensity Distribution System and Stereoscopic Image Display Device - A luminous intensity distribution system includes a first optical element extending in a first direction, and distributes, given that a first direction is taken to be leftward-rightward when viewed frontward-rearward, light having entered a light-incident surface from a right-rear direction and emits the light through a light-emitting surface toward a right-forward direction when viewed from the frontward end, and distributes light having entered the light-incident surface from a left-rear direction and emits the light through the light-emitting surface toward a left-forward direction when viewed from the frontward end; and a second optical element extending in the first direction and that diffuses light having entered the light-incident surface and emits the light through the light-emitting side, with the first optical element and the second optical element being arranged in parallel with each other vertically when viewed frontward-rearward. | 11-29-2012 |
20130135452 | IMAGE DISPLAY APPARATUS - A liquid crystal prism element includes a pair of opposing substrates, a plurality of triangular prisms which have a ridge line extending in a Y axis direction and are arranged between the opposing substrates so as to be aligned along an X axis direction, and a liquid crystal layer formed between the opposing substrates. Each triangular prism has an inclined surface located on a center side of the opposing substrate in the X axis direction, an inclined surface located on a lateral side of the opposing substrate in the X axis direction, and a bottom surface. Both of the two inclined surfaces of a triangular prism provided at least in a portion of a region on the opposing substrate are formed so as to not be perpendicular to the opposing substrate. | 05-30-2013 |
20130155208 | IMAGE DISPLAY APPARATUS - An image display apparatus includes: an image display panel; a backlight device; first and second liquid crystal prism elements each configured to change a deflection direction of emitted light according to a voltage applied thereto; a position detection section configured to detect a position of a user; and a control section configured to control the voltages applied to the liquid crystal prism elements, on the basis of information of the position of the user detected by the position detection section. Each liquid crystal prism element includes a pair of opposing substrates, a plurality of triangular prisms which have ridge lines extending in a first direction parallel to one side of the image display panel and are arranged between the pair of opposing substrates so as to be aligned along a second direction orthogonal to the first direction, and a liquid crystal sealed between the opposing substrates. | 06-20-2013 |
20130169704 | IMAGE DISPLAY APPARATUS - An image display apparatus according to the present disclosure includes: an image display panel; a backlight device; a first optical element located between the image display panel and the backlight device and configured to deflect a light incident thereon; a second optical element located between the first optical element and the image display panel and configured to change a deflection angle of emitted light according to a voltage applied thereto; a plurality of first lenses located between the first optical element and the backlight device; a plurality of second lenses located between the second optical element and the image display panel; a position detection section configured to detect a viewing position of a viewer; and a control section configured to control the voltage applied to the second optical element, according to the detected viewing position. The first lenses and the second lenses constitute an afocal optical system. | 07-04-2013 |
20140247211 | IMAGE DISPLAY APPARATUS - An image display apparatus capable of ensuring a wide view range is provided. The image display apparatus includes: an image display panel; a backlight located on a back surface side of the image display panel; prisms located between the image display panel and the backlight and configured to deflect incident light; a liquid crystal layer located between the image display panel and the backlight and configured to change a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a position detection section configured to detect a position of a user; and a control section configured to control the voltage applied to the liquid crystal layer, on the basis of information of the position of the user detected by the position detection section. | 09-04-2014 |
20150022746 | BACKLIGHT DEVICE AND IMAGE DISPLAY APPARATUS USING THE SAME - A backlight device and an image display apparatus which are capable of controlling the degree of diffusion of emitted light are provided. The backlight device according to the present disclosure includes: a light source; a light guide plate that causes surface emission of light emitted from the light source; a directivity control film that is provided on a light-emitting side of the light guide plate, and causes the light emitted from the light guide plate to have directivity; and a liquid crystal diffusion element that is switchable between a first state in which the light emitted from the directivity control film is transmitted as it is, and a second state in which the light emitted from the directivity control film is diffused. | 01-22-2015 |
20150036209 | LIGHT DEFLECTION ELEMENT AND IMAGE DISPLAY APPARATUS USING THE SAME - A light deflection element is capable of deflecting incident light so as to follow a position of an observer and suppressing reduction in intensity of light that reaches eyes of the observer regardless of their position. The light deflection element includes: a first optical element configured to deflect incident light; a second optical element configured to change a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a third optical element; and a control section configured to control the voltage applied to the second optical element. At least one of interfaces between the first and second optical elements and the second and third optical elements is an aspheric surface. The aspheric surface has an optical power that compensates enlargement of the emitted light which is caused by refractive index distribution caused when a voltage is applied to the second optical element. | 02-05-2015 |
20150077850 | IMAGE DISPLAY APPARATUS - An image display apparatus is provided, which uses a light deflection element capable of deflecting incident light so as to follow the position of an observer, and suppressing reduction in the intensity of light reaching eyes of the observer, regardless of the position of the observer. The light deflection element according to the present disclosure is configured to deflect incident light, and includes: a first optical element that deflects incident light; a second optical element that changes a deflection direction of emitted light by changing a refractive index thereof according to a voltage applied thereto; a first electrode provided on the first optical element side; a plurality of second electrodes provided on the second optical element side; and a control section that controls the voltage applied to the second optical element. | 03-19-2015 |
20150085214 | LIQUID CRYSTAL LENS AND IMAGE DISPLAY APPARATUS INCLUDING THE SAME - A liquid crystal lens according to the present disclosure includes: a first electrode; a plurality of second electrodes arranged in a stripe manner, each second electrode facing the first electrode; a liquid crystal layer provided between the first electrode and the second electrodes, the liquid crystal layer including liquid crystal molecules whose orientation changes in accordance with a voltage applied between the first electrode and the second electrodes, the liquid crystal layer serving as a lens when a refractive index distribution occurs therein due to change in the orientation of the liquid crystal molecules. In the liquid crystal lens, a direction of initial orientation of the liquid crystal molecules is substantially parallel to an extending direction of the second electrodes. | 03-26-2015 |
20150116613 | IMAGE DISPLAY APPARATUS - An image display apparatus according to the present disclosure includes: a display panel having at least, first pixels that display a first parallax image and second pixels that display a second parallax image; and an image conversion element. The image conversion element includes: a plurality of first electrodes arranged at a predetermined pitch; a second electrode; and a liquid crystal layer. The image display apparatus according to the present disclosure simultaneously satisfies the following conditions, wherein f is a distance from the liquid crystal layer to the first pixels or the second pixels, r is a length equal to ½ of an arrangement pitch of the first electrodes, Δn is a birefringence of the liquid crystal molecules, P is an arrangement pitch of the first pixels and the second pixels, and d is a thickness of the liquid crystal layer: | 04-30-2015 |