104results about How to "Reduce directivity" patented technology

A light-emitting device is provided that can extract light in all directions and that has wide directivity. This light-emitting device includes: an elongated bar-shaped package extending sideways, the package being formed such that a plurality of leads are formed integrally with a first resin with part of the leads exposed; a light-emitting element that is fixed onto at least one of the leads and that is electrically connected to at least one of the leads; and a second resin sealing the light-emitting element. In the light-emitting device, the first resin and the second resin are formed of optically transparent resin, and the leads have outer lead portions used for external connection and protruding sideways from both left and right ends of the package.

Provided is a method for moving, in a vacuum chamber carrying therein a fixedly-provided evaporation source, a substrate toward the evaporation source together with a mask closely attached to the substrate surface, and onto the surface substrate, evaporating a material vaporized in the evaporation source through an aperture formed to the mask. In this method of the invention, means for moving the substrate toward the evaporation source is provided with cooling means not to come in contact with but to be in proximity to a surface of the mask on the evaporation source side, and a cooling plate formed with an aperture proximal to the evaporation source is disposed. With such a configuration, the steam of the material coming from the evaporation source is directed to the mask and the substrate through the aperture of the cooling plate. As such, the material film evaporated on the substrate surface shows a satisfactory distribution of film thickness, and any possible misalignment from desired positions of evaporation can be accordingly suppressed.

The IC tag comprises a three-dimensional antenna and an integrated circuit. The three-dimensional antenna is configured in such a manner that a plurality of planar antennas, each capable of performing emission and reception of radio waves by itself, are arranged at angles so as to be not parallel to each other. The integrated circuit is also connected to the three-dimensional antenna and performs transmission or reception of a signal via the three-dimensional antenna.

Provided are a low-cost and high-performance antenna that can be placed in a small space inside a portable terminal or an electric appliance or housed in a wall or the like, and an electric apparatus having the antenna. A slit having a specified width and a specified length is formed in a conductive flat plate having a specified width and a specified length. A radiating element portion shaped like a monopole antenna and a ground portion (having a specified width) are formed with the slit between them. The width of the conductive flat plate (the length of the radiating element portion) is substantially a multiple of a quarter of a wavelength attained at the operating frequency of the antenna by an odd-numbered value.

A light-emitting device includes: a light-emitting element whose main emission wavelength is 410 nm or less; and one phosphor layer or more stacked to cover a light-emitting surface of the light-emitting element and containing phosphors that absorb light from the light-emitting element and wavelength-convert the absorbed light to emit light.

A diffraction grating having a transparent supporting substrate; and a cured resin layer which is stacked on the transparent supporting substrate and which has concavities and convexities formed on a surface thereof, wherein when a Fourier-transformed image is obtained by performing two-dimensional fast Fourier transform processing on a concavity and convexity analysis image obtained by analyzing a shape of the concavities and convexities formed on the surface of the cured resin layer by use of an atomic force microscope, the Fourier-transformed image shows a circular or annular pattern substantially centered at an origin at which an absolute value of wavenumber is 0 μm⁻¹, and the circular or annular pattern is present within a region where an absolute value of wavenumber is within a range of 10 μm⁻¹ or less.

An NFC antenna (“NFC” stands for “near field communication”) includes a ferrite antenna including a primary antenna coil wound on a ferrite core of the ferrite antenna; a loop coil provided in a position where components of a magnetic flux on a non-communication direction side interlink, the magnetic flux being generated by the ferrite antenna; and a loop coil switching unit for switching between a mode for forming a loop of the loop coil and a mode for disconnecting the loop.

The present invention realizes an IPS liquid crystal display device which exhibits small directivity of viewing angle and high brightness. Below a pixel electrode having a comb-teeth-shaped electrode and having a laterally-extending trapezoidal profile, a planar common electrode not shown in the drawing is formed by way of an insulation film. When a video signal is applied to the pixel electrode, an electric field is generated between the pixel electrode and the common electrode via slit portions formed in the pixel electrode thus controlling liquid crystal molecules. The pixel electrodes are arranged in a packed state by alternately reversing the direction of the trapezoidal shape in the longitudinal direction. Since a light blocking film is not present between two pixel electrodes arranged adjacent to each other in the longitudinal direction, the liquid crystal display device can acquire high transmissivity. As a result, a liquid crystal display device having high brightness can be realized.

A distributed coupler including a first line intended to convey a radio signal between its two ends and a second line intended to sample, by coupling, part of the signal, wherein: one of the lines is formed on an insulating substrate; and the other line is formed in a lead frame supporting the substrate, one line being above the other.

Provided is an illumination apparatus for a liquid crystal display apparatus having a plurality of transmission parts arranged two-dimensionally, having a plurality of aspherical lenses, which is installed in response to each of a plurality of the transmission parts and concentrates light for each of a plurality of the transmission parts; a plurality of light emission parts R1 installed in response to each focal point position of a plurality of the aspherical lenses; and an electroluminescence layer containing a non-light emission region R2 installed between a plurality of the light emission parts R1 themselves. Each of a plurality of the aspherical lenses has an inner side lens face containing an intersection with an optical axis AX, and an outer side lens face enclosing said inner side lens face, and curvature in the outer side lens face is smaller than curvature in the inner side lens face.

A backlight unit is capable of preventing an error in positioning of a light-emitting diode light source. The backlight unit (1) includes a film-shaped lightguide plate (6) having at least one light source accommodating hole (6a), and at least one light source (L) having at least one light-emitting diode element disposed in the light source accommodating hole. A retaining portion (6b) provided on the peripheral wall surface of the light source accommodating hole pressingly engages the peripheral wall surface of the light source to support it.

The invention provides an online monitoring device for a micro-optics lens in a semiconductor laser to be precisely adjusted and a using method of the online monitoring device. According to the technical scheme, the method comprises the steps that a CCD is adopted as a light spot data collecting component, near-field light spot data and far-field light spot data are monitored online at the same time during adjusting of the micro-optics lens based on the light beam splitting principle, the near-field CCD light spot data change serves as the optimal space position basis of a rotating axis of the micro-optics lens, the far-field CCD light spot data change serves as the optimal space position basis of a displacement axis of the micro-optics lens, and the fast and slow axis light beam divergence angle and directivity of the semiconductor laser can be precisely controlled. The online monitoring device has the advantages of being high in system integrity, precise and reliable in monitored judgment data and the like. The low-divergence-angle and high-directivity semiconductor laser obtained based on the online monitoring device can be applied to various fields such as pumping solid lasers, medical treatment and industrial machining.

In a multilayer substrate, eight front-side antenna portions and eight back-side antenna portions are disposed. Front-side radiation elements in the front-side antenna portions and back-side radiation elements in the back-side antenna portions are arranged in a staggered pattern when being vertically projected onto an back side of the multilayer substrate. The front-side radiation elements are disposed on a front side of the multilayer substrate, and a front-side ground layer is formed near the back side of the multilayer substrate. On the other hand, the back-side radiation elements are disposed on the back side of the multilayer substrate, and a back-side ground layer is formed near the front side of the multilayer substrate. The front-side radiation element and the back-side radiation element are disposed so as not to overlap each other when being vertically projected onto the back side of the multilayer substrate.