Abstract: A light emitting device 1 has, as a light source, a light emitting semiconductor element such as a light emitting diode 2. Light radiated from the light emitting diode 2 is converted to visible light in a light emitting part 8 having a plurality of phosphors 9 different in emission color, and the visible light is emitted. In such a light emitting device 1, a maximum value (?x, ?y) of color difference (absolute value) between emission chromaticity (x, y) and emission chromaticity (x1, y1) satisfies conditions of ?x<0.05 and ?y<0.05, where (x, y) is emission chromaticity measured directly above the light source and (x1, y1) is emission chromaticity measured for each of front lights and side leakage lights in all directions from the light emitting device 1.

Abstract: There is provided an optical writing image forming device including: a positioning section positioning an optically written display medium including a pair of electrodes with at least one of which formed by a group of plural sub-electrodes, a display layer, and a photoconductor layer; a display layer initialization section applying an initialization voltage between the pair of electrodes and irradiating initialization light over the entire region of the photoconductor layer; an optical writing section; a head position identification section; and a writing information erasing section, based on information identified by the head position identification section, erasing in a time-series writing information in the display layer corresponding to the group of the plural sub-electrodes by selecting the sub-electrodes in sequence so that an image writing head does not obstruct light emitted from the initialization light source while the image writing head light source is being returned to a standby position.

Abstract: An image input detection apparatus comprises: a voltage applier that applies a voltage of a predetermined waveform to a display medium; a first acquisition unit that acquires a vibration waveform generated in the display medium; a first memory that stores a vibration waveform determined based on the waveform of the voltage applied by the voltage applier; and a second memory that stores information representing that an image written on the display medium has been overwritten, when the difference between the waveform acquired by the first acquisition unit and the waveform stored in the first memory lies within a threshold value.

Abstract: A wireless communications apparatus includes: a second communications unit that uses electromagnetic waves to perform wireless communications with a recording medium having a first communications unit that stores information; and a housing that houses a portion of the recording medium, the portion including the first communications unit, wherein the second communications unit is provided at a position that faces the first communications unit housed in the housing; and the housing has a first electromagnetic wave suppressing member that suppresses radiation of electromagnetic waves from inside to outside, and suppresses radiation of electromagnetic waves from the second communications unit in a direction other than towards the first communications unit of the recording medium in a state housed in the housing.

Abstract: A motion detecting device includes: a first detecting unit that detects a state of a writing hand of a writer based on first data output depending on the state of the writing hand from a first sensor; a second detecting unit that detects a distance between the writer and a recording medium based on second information output from a second sensor; a determining unit that determines that the writer is writing on the recording medium when the state of the writing hand detected by the first detecting unit is a predetermined state and the distance detected by the second detecting unit is smaller than or equal to a predetermined threshold value; and an output data generating unit that generates output data based on a state of the writer determined by the determining unit.

Abstract: An image writing device is provided and includes: a case including an accommodating part that accommodates a plurality of display media stacked, a entrance and exit port which is communicated with the accommodating part and through which the display media enter and exit the case, and a window through which an image on a display surface of a display medium can be externally browsed, the image being written in the display medium by applying external stimulation; a conveying part that conveys the display medium into and out of the case through the entrance and exit port; and a writing part arranged near the entrance and exit port of the case, the writing part applying the external stimulation to the display medium to write the image in the display medium when the display medium is conveyed into or out of the case by way of the conveying part.

Abstract: In a embodiment, a white LED for a backlight of a liquid crystal display device conforming to the EBU standard includes an ultraviolet (purple) light-emitting element, and a phosphor layer which contains 1 to 10 wt % of a green phosphor including a divalent europium-activated silicate phosphor, 40 to 80 wt % of a blue phosphor including at least one selected from a divalent europium-activated halo-phosphate phosphor and a divalent europium-activated aluminate phosphor, and 10 to 50 wt % of a red phosphor including at least one selected from a europium-activated lanthanum oxysulfide phosphor and a europium-activated yttrium oxysulfide phosphor.

Abstract: An object of the present invention is to provide a solid scintillator having short afterglow and high output, and a radiation detector and a tomograph using the solid scintillator. A solid scintillator according to the present invention is a solid scintillator comprising a polycrystal containing a crystal of a Gd garnet structure oxide having a composition ratio represented by the following formula (1): [Formula 1] (M1-x-yGdxQy)3J5O12??(1) wherein M is at least one element of La and Tb, Q is at least one element of Ce and Pr, J is at least one element selected from Al, Ga, and In, x and y satisfy relations 0.5?x?1, and 0.000001?y?0.2, and further containing Si and fluorine, wherein the solid scintillator contains 1 ppm by mass to 1000 ppm by mass of the Si with respect to the Gd garnet structure oxide, and 1 ppm by mass to 100 ppm by mass of the fluorine with respect to the Gd garnet structure oxide.

Abstract: A driving apparatus includes a voltage applying unit, a light irradiation unit and a resistance control unit. The voltage applying unit forms a voltage applying circuit together with a pair of electrode layers of a photo-addressing type display element. The voltage applying unit applies a voltage between the pair of electrode layers. The light irradiation unit irradiates the photo-addressing type display element with addressing light. The resistance control unit controls a resistance to a current which flows in a direction to reduce a potential difference between the pair of electrode layers to be larger than that during a period in which the voltage applying unit is applying the voltage.

Abstract: A driving apparatus includes a voltage applying unit, a light irradiation unit and a resistance control unit. The voltage applying unit forms a voltage applying circuit together with a pair of electrode layers of a photo-addressing type display element. The voltage applying unit applies a voltage between the pair of electrode layers. The light irradiation unit irradiates the photo-addressing type display element with addressing light. The resistance control unit controls a resistance to a current which flows in a direction to reduce a potential difference between the pair of electrode layers to be larger than that during a period in which the voltage applying unit is applying the voltage.

Abstract: A display-controlling device includes: a display-controlling unit that controls a display unit to display an image indicating an item selected upon receipt of an instruction at a receiving unit, wherein if a first image indicating a first selected item is displayed at a first position, and an item instructed to be selected changes from the first selected item to a second selected item, the display-controlling unit causes there to be displayed, without erasure of the first image, a second image indicating the second selected item at a second position, which position is reached from the first position by movement in the first direction by an amount based on a position of the second selected item as viewed from the first selected item, with simultaneous movement in a second direction other than the first direction by a predetermined amount.

Abstract: A white light-emitting lamp (1) includes a light-emitting portion (9) which is excited by light emitted from a semiconductor light-emitting element (2) to emit white light. The light-emitting portion (9) contains a blue phosphor, a yellow phosphor and a red phosphor. The yellow phosphor is composed of a europium and manganese-activated alkaline earth silicate phosphor having a composition expressed by (Sr1-x-y-z-u, Bax, Mgy, Euz, Mnu)2SiO4 (0.1?x?0.35, 0.025?y?0.105, 0.025?z?0.25, 0.0005?u?0.02).

Abstract: An image forming apparatus comprises: a holding unit that holds a medium on which an image is formed by irradiation of image-bearing light, the medium having a liquid crystal layer, a photoconductor layer that changes a resistance in response to irradiation of light, and a pair of electrode layers provided in an opposing relation so as to sandwich the liquid crystal layer and photoconductor layer, with at least one of the pair of electrode layers being divided into stripe-shaped sub-electrode layers; an irradiating unit that irradiates the medium with image-bearing light linearly along a longitudinal direction of the sub-electrode layers; a transporting unit that transports the irradiating unit along the surface of the medium in a first or second direction; a power supply unit that applies a voltage between the sub-electrode layer and the electrode layer; and an optical shielding unit that shields the photoconductor layer.

Abstract: A white LED includes a light emitting element with a light emission peak wavelength equal to or longer than 380 nm and equal to or shorter than 420 nm, and a phosphor layer containing three or more types of phosphors including at least a blue phosphor, a green phosphor, and a red phosphor and disposed in a manner to cover at least part of the light emitting element. The phosphor layer has a first phosphor layer and a second phosphor layer disposed in an opposite side of a side of the light emitting element of the first phosphor layer. In the first phosphor layer, a content of the blue phosphor in an entire phosphor contained in the first phosphor layer is equal to or less than 5 mass %, or the blue phosphor is not contained. In the second phosphor layer, a content of phosphor other than the blue phosphor in an entire phosphor contained in the second phosphor layer is equal to or less than 5 mass %, or no phosphor other than the blue phosphor is contained.

Abstract: A linear white light source 1 includes a base, a plurality of light emitting diode chips linearly disposed on the base and each generating ultraviolet light having a wavelength of not less than 330 nm nor more than 410 nm, and a phosphor layer continuously formed on the base to cover the plurality of light emitting diode chips and containing a red light emitting phosphor, a green light emitting phosphor, and a blue light emitting phosphor.

Abstract: Disclosed is a white LED lamp using an ultraviolet light emitting LED, which can simultaneously realize a high level of color rendering and a high level of brightness. Included is an LED chip 2 having a luminescence wavelength between 360 nm and 440nm, and a light emitting part excitable upon exposure to light from the LED chip 2 to emit white light and comprising a phosphor, the phosphor including blue, green, and red light emitting phosphors bonded to each other. A phosphor selected from europium-activated halophosphate phosphors and europium-activated aluminate phosphors is used as the blue light emitting phosphor. A gold- and aluminum-activated zinc sulfide phosphor is used as the green light emitting phosphor. A phosphor selected from europium- and samarium-activated lanthanum oxysulfide phosphors and copper- and manganese-activated zinc sulfide phosphors is used as the red light emitting phosphor.

Abstract: A white light-emitting device 1 includes a semiconductor light-emitting element 2 emitting ultraviolet light or violet light, and a light-emitting unit 10 which includes three or more kinds of visible light-emitting phosphors 9 and emits white light when excited by the light from the semiconductor light-emitting element 2. The emission spectrum of the light-emitting unit 10 has peaks in a blue region of not less than 440 nm nor more than 460 nm, a green region of not less than 510 nm nor more than 530 nm, and a red region of not less than 620 nm nor more than 640 nm, and the three or more kinds of visible light-emitting phosphors 9 are bound together with a binder in advance.

Abstract: An image forming apparatus writes an image to a display recording medium at a write position. The image forming apparatus includes an insertion slot, a transport unit, an image light emitting device and a separating/contacting unit. The display recording medium is inserted into the insertion slot. The transport unit transports the display recording medium inserted, to/from the write position. The image light emitting device includes an emitting surface that emits two-dimensional image light for irradiating a photoconductive layer of the display recording medium at the write position. The separating/contacting unit brings the emitting surface separate from a display recording medium surface when the display recording medium is not opposed to the image light emitting device, while the transport unit transports the display recording medium. The separating/contacting unit brings the emitting surface into proximity to the display recording medium surface when the display recording medium is at the write position.

Abstract: An electronic paper system includes: electronic paper having a display unit that can display and retain an image in a no-power state; image generation means for generating a displaying image by combining a scale-down image of at least a part of a document and an image of at least part of related information of the document; and write means for writing the generated displaying image into the display unit of the electronic paper so that the display unit displays and retains the generated displaying image.

Abstract: A white light emitting device includes a blue light emitting diode chip that emits blue light in a specific wavelength band, a first resin layer that seals the blue light emitting diode chip and includes a cured product of silicone resin, and a second resin layer that covers the first resin layer and includes phosphor powder, which absorbs the blue light and emits light in a specific wavelength band, and a cured product of transparent resin. The phosphor powder has a composition represented by the following Formula (1): (Sr1-x-yBaxEuy)2SiO4 ??(1) (in Formula (1), x and y satisfy a condition that 0.05<x<0.5 and 0.05<y<0.3.) The first resin layer has thickness within a range of 200 ?m to 2000 ?m. The white light emitting device has high luminance for a long period.