摘要:
A backlight unit 1 includes a plurality of light emitting devices 2 constituted with, for example, LED lamps, and an optical sheet 4 disposed on light emission surface 2b sides of the light emitting devices 2. The light emission surface sides of the plural light emitting devices are joined to the optical sheet 4 via joining layers 5. The backlight unit 1 satisfies a condition of n1≦n2≦n3, where n1 is a refractive index of the optical sheet 4, n2 is a refractive index of the joining layer 5, and n3 is a refractive index of the light emitting device 2.
摘要:
The present invention provides a white LED comprising: an ultraviolet emitting diode or a purple light emitting diode; and phosphors for emitting at least three visible lights including blue light, green light and red light; wherein an emission spectrum of the white LED has; a first luminescence peak in a blue light region having a wavelength of 440-460 nm; a second luminescence peak in a green light region having a wavelength of 510-530 nm; and a third luminescence peak in a red light region having a wavelength of 620-640 nm. Further, it is preferable that a half bandwidth of each of the luminescence peaks is 50 nm or less. As a result, there can be provided a white LED, backlight and liquid crystal display using the white LED exhibiting a high luminance, and an excellent color reproducing property,
摘要:
A positive electrode active material for nonaqueous electrolytic solution secondary batteries is substantially made of a Li containing transition metal composite oxide, which has a composition expressed by LixMySzO2 (wherein M is a transition metal, such as Co, Ni, Mn, Fe and V, and 0.9≦x≦1.15, 0.8≦y≦1.00, and 0
摘要翻译:用于非水电解液二次电池的正极活性物质基本上由含Li的过渡金属复合氧化物制成,其具有由LixMySzO2表示的组成(其中M是过渡金属,例如Co,Ni,Mn,Fe和V, 和0.9 <= x <= 1.15,0.8 <= y <= 1.00,0
摘要:
In a video signal transmitting apparatus which edits video data by a plurality of editing units, after the video data made in a shooting unit is stored in a video data storing unit, attendant information is added in making the video data, and the attendant information is extracted to be used as a keyword in a database in the video data storing unit, thereby editing the video data. Therefore, construction of a database and editing of video data can be performed easily and correctly.
摘要:
A data transfer system for transferring a transfer frame including a plurality of character codes representing a numeral of numerical data to be transferred, error detection data including a parity code for the character codes and a predetermined transfer control code to a controller on a receiver side from a controller on a sender side. In the controller on the sender side, a parity code obtained for the character codes is divided into a plurality of bit groups, a predetermined code which does not coincide with the predetermined transfer control code is affixed to each divided bit group to form divided parity data having a specific number of bits, and the transfer frame is constituted with these plural divided parity data as the error detection data. In the controller on the receiver side, the original parity code is restored from a plurality of divided parity data in the received transfer frame and is used.
摘要:
A magnetic recording medium comprises a non-magnetic base material, a lower magnetic layer containing a magnetic powder for recording in a long wavelength range, and an upper magnetic layer containing a magnetic powder for recording in a short wavelength range. By adding a small particle abrasive with a median diameter in the range from 0.05 to 0.3 .mu.m to the upper magnetic layer and by properly selecting the type and amount of a resin binder contained in the upper magnetic layer, a satisfactory abrasion effect can be obtained. This effect can be obtained, even if the abrasive with a small particle diameter is used without necessity of increase of the amount thereof. In addition, by using this abrasive, even if the upper magnetic layer is thin, the surfaces of the upper magnetic layer and the lower magnetic layer can be smoothened. Therefore, an excellent magnetic recording medium having high recording and reproduction characteristics in a wide wavelength range and high running durability can be provided. In particular, the recording and reproduction characteristics in a short wavelength range can be improved. A hexagonal ferrite powder can be used as a magnetic powder for recording in a short wavelength range.
摘要:
A magnetic recording medium comprises a non-magnetic base material; a lower magnetic layer containing a magnetic powder for recording in a long wavelength range and a resin binder; an upper magnetic layer containing a magnetic powder for recording in a short wavelength range and a resin binder; and an intermediate layer disposed between the two magnetic layers. By properly selecting the type and amount of resin binder contained in the upper magnetic layer and by disposing the intermediate layer whose main component is a resin binder, dispersion property of the magnetic powder in the upper magnetic layer can highly be improved, and thin and smooth magnetic layers can be obtained. Thus, the recording medium provides excellent reproduction characteristics in the wide wavelength range and has excellent running durability. In particular, the reproduction characteristics in a short wavelength range can be improved. A hexagonal ferrite powder is suitably used as the magnetic powder for recording in the short wavelength range. As the resin binder for the intermediate layer, a polyisocyanate compound whose molecular weight is 1,000 or less is particularly effective.
摘要:
A measuring device having a transmitter includes a measuring device section, a data processing unit, a transmitter, and a casing. The measuring device section converts measuring data into a digital value and outputs it. The data processing unit arranges the measurement data obtained in the measuring device section in a transmission data string having a predetermined format and outputs it. The transmitter transmits the transmission data, which is output from the data processing unit, by radio transmission. The transmitter is housed in the casing, which is attached to a portion near an operation section of the measuring device section, together with the data processing unit. An antenna output terminal of the transmitter is connected to the casing or a conductor portion near the casing.
摘要:
An editing system for audio signals recorded on magnetic tape comprises a helical scan video tape recorder including a circuit for recording and reproducing the audio signals longitudinally on the magnetic tape, an address signal reproducing circuit for reproducing an address signal recorded on the tape, a tape transporting mechanism for moving the tape, a mode selecting circuit for selecting an operating mode of the video tape recorder, and a circuit for generating pulse signals corresponding to a moving speed of the tape; a monitor circuit for monitoring the audio signals reproduced by the video tape recorder; and an editing control circuit including a speed control circuit for controlling the tape transport mechanism to change the speed of the tape and thereby locate an editing point on the tape, an address signal reading circuit for reading the address signal supplied from the video tape recorder, a counting circuit for counting the pulse signals, a memory for storing output signals from the reading circuit and the counting circuit which are generated when the tape is positioned at the editing point, and a controller circuit for controlling the mode selecting circuit in response to the output signals stored in the memory.
摘要:
A powder for a magnetic recording medium comprising a plurality of magnetic particles and a coating covering the surfaces of the magnetic particles. The coating is a residue resulting from the thermal decomposition of an organic material. The powder is manufactured by applying one or more organic materials to the surfaces of a plurality of magnetic particles by dispersing the magnetic particles in a solution containing the organic material. The magnetic particles, having the organic material as a coating, are separated from the solution, and the magnetic particles are heated to a temperature at which the organic material decomposes.