Abstract: The present invention provides an optical lens having a high refractive index and a low light absorption characteristic in an ultraviolet-wavelength region; a condenser lens composed of the optical lens, fit for the near-field optical recording/reproducing system; an optical pickup that includes the condenser lens and can reduce the condensed light spot irradiating a recording medium and also manage to make the recording medium higher in recording density and greater in capacity; and an optical recording/reproducing apparatus comprising the optical pickup to enable optical recording and reproduction in high recording density to be performed.

Abstract: A photoelectronic device capable of maintaining the degree of freedom in designing for dealing with design changes and responding to producing a variety of kinds in a small amount, and the production method are provided: wherein a light emitting element for emitting a light to be a clock signal, a semiconductor chip provided with light receiving portions for receiving the light, and an optical waveguide sheet formed to be a sheet, wherein an outer circumference of a core is covered with a clad, adhered to said semiconductor chip are provided; and the optical waveguide sheet is configured to be irradiated at a light incident portion of a core with a light from the light emitting element and includes one or more T-shaped branch having a vertical opening portion having a vertical inner wall, which is vertical with respect to the direction within a surface of the optical waveguide sheet and becomes a mirror surface for dividing and reflecting the light, and a sloping opening portion having a sloping inner wall, w

Abstract: The present invention is relative with a water color ink suited for ink jet printing for plain paper. The dry viscosity, the dynamic surface tension at 10 ms and the dynamic surface tension at 1000 ms of the ink are prescribed to be equal to 100 mPa·s or less, equal to 45 mN/m or higher and equal to 35 mN/m or less to provide for reduced bleeding and superior drying performance and emission reliability.

Abstract: The levels of the power supply and the ground are kept constant against a parasitic resistance by keeping the constant current of an amplifier irrespective of the size of a pixel signal and the gain of the amplifier in this case in an image signal reading circuit system having the amplifier arranged to each column. The amplifier has a limiter at an output terminal thereof which limits an output voltage of the amplifier to a range for keeping the constant consumption-current.

Abstract: AlGaInP system laser device (24) and AlGaAs system laser device (26) are arranged so that respective stripes (28, 30) are parallel to each other. The AlGaInP system laser device (24) is placed to (011) plane (22b) side from the centerline of the substrate and the AlGaAs system laser device (26) is placed to the (0{overscore (1)}{overscore (1)}) plane (22a) side from the centerline of the substrate when viewed from the main emitting plane (01{overscore (1)}) (22c) side of laser light. Substrate (22) is an off substrate and inclines from the (0{overscore (1)}{overscore (1)}) plane (22a) toward the (011) plane (22b) with respect to the (100) plane at a certain angle (? off) within the range of 2 degrees and 15 degrees. Optical axis L1 of the AlGaInP system laser device (24) is parallel to optical axis L2 of the AlGaAs system laser device (26) and approaches at an angle of about 0.5 degrees.

Abstract: A semiconductor device which is capable of operating with a single positive power supply and has a low gate resistance, and a process for production thereof. The semiconductor device includes a channel layer (which constitutes a current channel), a first semiconductor layer formed on said channel layer, a second semiconductor layer in an island-like shape doped with a conductive impurity and formed on said first semiconductor layer, and a gate electrode formed on said second semiconductor layer, wherein said first and second semiconductor layers under said gate electrode have a conductive impurity region formed therein to control the threshold value of current flowing through said channel layer, and the conductive impurity region formed in second semiconductor layer is doped with a conductive impurity more heavily than in the conductive impurity region formed in said first semiconductor layer.

Abstract: A polishing method and a polishing apparatus by which excess portions of a metallic film 18 can be removed easily and efficiently in planarizing the metallic film 18 by polishing and which is high in accuracy of polishing, are provided. Also, a method of manufacturing a semiconductor device by use of the polishing method and the polishing apparatus is provided. A substrate 17 provided with the metallic film 18 and a counter electrode 15 are disposed oppositely to each other in an electrolytic solution E, an electric current is passed to the metallic film 18 through the electrolytic solution E, and the surface of the metallic film 18 is polished with a hard pad 14.

Abstract: Disclosed herein is a display device, including a display element, a first scanning line, a second scanning line, a data signal line, a switching element having a first terminal and a second terminal of a first conduction type, the first terminal being connected to the data signal line, for being held in a conducting state or a non-conducting state according to a voltage applied to the first scanning line, and a storage capacitance having a first electrode and a second electrode that shares the second scanning line, wherein the second terminal of the switching element is connected to the display element and connected to the first electrode of the storage capacitance including a semiconductor film of a second conduction type different from the second terminal.

Abstract: A solid-state image pickup device 20 according to the present invention includes a plurality of light-receiving sensor portions 2 arrayed in the horizontal and vertical directions and interconnection layers of a plurality of layers formed through interlayer insulators so as to form opening portions 423 at their portions corresponding to the respective light-receiving sensor portions 2, wherein the opening portions 423 of the uppermost layer of the interconnection layer are shifted from the light-receiving sensor portions 2 toward the center of the image pickup area in any one direction of the horizontal direction or the vertical directions. Thus, it is possible to provide a solid-state image pickup device and an image pickup camera including this solid-state image pickup device capable of restraining shading while interconnection and layout of interconnection layers are being facilitated.

Abstract: The present invention fixes a nozzle sheet on a substrate with a predetermined material (5, 6), which has an excellent chemical resistance and sufficient adhesiveness, or more specifically, fixes the nozzle sheet on the substrate with cyclized rubber or with patternable, adhesive elastic material. Moreover, the present invention forms walls for liquid chambers and liquid channels with polyimide.

Abstract: A circuit substrate device composed of a circuit unit 2 and a multi-layer wiring substrate 3 in which a pattern conductor of the circuit unit 2 may be prevented from being warped or inundated. The circuit substrate device includes a circuit unit 2 having a pattern conductor formed by a thin film technique, and an insulating layer, and a multi-layer wiring substrate 3 having a connecting terminal portion 14 exposed from its major surface. The circuit unit is formed on a dummy substrate. The circuit unit is connected to the multi-layer wiring substrate 3 so that the pattern conductor is connected to the connecting terminal portion 14. The dummy substrate is then removed to give a structure comprised of the circuit unit 2 formed on the multi-layer wiring substrate 3. The pattern conductor of the circuit unit 2 is freed of warping or inundations along the direction of thickness of the circuit unit 2.

Abstract: A print head for a line printer in which errors between print head chips and another component are reduced and ink leakage is prevented, and in which heat generated in print head chips is efficiently dissipated without making the structure of the print head complex or increasing the size of the print head. A plurality of print head chips (11) are arranged along an ink path (20) and are disposed on both sides of the ink path in a zigzag pattern. Dummy chips (21) which do not eject ink are disposed at regions between the print head chips (11) arranged along the ink path (20). In addition, an ink-path member (23) is provided, at least a part of the ink-path member (23) which includes portions adhered to the print head chips (11) being composed of a material having a high thermal conductivity, so that the ink-path member (23) also serves as heat-dissipating means which dissipates heat generated in the print head chips (11).

Abstract: An electrode includes a composite mixture layer formed by applying a composite mixture having one of a cathode active material or an anode active material on one of main surfaces of a plurality of current collectors formed in substantially rectangular shapes; and a non-applied part to which the composite mixture is not applied at both end parts in the longitudinal direction. One current collector is connected to the other adjacent current collector at one end side in the longitudinal direction through a connecting part to which the composite mixture is not applied and which is provided continuously to the non-applied parts. In the electrode constructed as described above, a plurality of current collectors can be laminated to obtain a multi-layer structure and an electric current can be collected from a lead welded to only one end part of the current collector. Thus, the electrode of a new form having an excellent productivity and a high capacity can be provided.

Abstract: A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid detecting circuit includes electrode units disposed so as to begin contact with the liquid in the containers, which becomes electrically conductive when in contact with the liquid, an impedance, and an AC-signal source. An AC signal not containing a DC component is input from the AC-signal source to the electrode units through the source impedance, and a signal representing the status of electric connection of the electrode units is output. Furthermore, based on the output signal, a binary signal representing the presence or absence of electrical connection of the electrode units is output. The determining unit determines the presence or absence of the liquid at the electrode units based on the binary signal output from the liquid detecting circuit.

Abstract: A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid detecting circuit includes electrode units disposed so as to be in contact with the liquid in the containers, which becomes electrically conductive when in contact with the liquid, an impedance, and an AC-signal source. An AC signal not containing a DC component is input from the AC-signal source to the electrode units through the source impedance, and a signal representing the status of electric connection of the electrode units is output. Furthermore, based on the output signal, a binary signal representing the presence or absence of electrical connection of the electrode units is output. The determining unit determines the presence or absence of the liquid at the electrode units based on the binary signal output from the liquid detecting circuit.

Abstract: A liquid crystal display device, by which a reduction of costs of a color filter is realized and declining of the transmittance or reflectance due to an alignment error is suppressed, comprising a pair of substrates arranged facing to each other over a liquid crystal layer, wherein one substrate is formed pixels PXL arranged in matrix. Each pixel is formed a reflection portion for reflecting an outside light and a transmission portion for transmitting a light. The other substrate is formed a color filter colored to be different colors (red, green and blue) corresponding to respective pixels. One or more color adjusting windows CFW having a coloring concentration of zero or less than that of other portions are provided on reflection regions CFR superposing with reflection portions inside pixel regions corresponding to respective pixels.

Abstract: A semiconductor light emitting device is fabricated by forming a mask having an opening on a substrate, forming a crystal layer having a tilt crystal plane tilted from the principal plane of the substrate by selective growth from the opening of the mask, and forming, on the crystal layer, a first conductive type layer, an active layer, and a second conductive type layer, which extend within planes parallel to the tilt crystal plane, and removing the mask. The semiconductor light emitting device can be fabricated without increasing fabrication steps while suppressing threading dislocations extending from the substrate side and keeping a desirable crystallinity. The semiconductor light emitting device is also advantageous in that since deposition of polycrystal on the mask is eliminated, an electrode can be easily formed, and that the device structure can be finely cut into chips.

Abstract: A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid detecting circuit includes electrode units disposed so as to be in contact with the liquid in the containers, which becomes electrically conductive when in contact with the liquid, an impedance, and an AC-signal source. An AC signal not containing a DC component is input from the AC-signal source to the electrode units through the source impedance, and a signal representing the status of electric connection of the electrode units is output. Furthermore, based on the output signal, a binary signal representing the presence or absence of electrical connection of the electrode units is output. The determining unit determines the presence or absence of the liquid at the electrode units based on the binary signal output from the liquid detecting circuit.

Abstract: A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid detecting circuit includes electrode units disposed so as to be in contact with the liquid in the containers, which becomes electrically conductive when in contact with the liquid, an impedance, and an AC-signal source. An AC signal not containing a DC component is input from the AC-signal source to the electrode units through the source impedance, and a signal representing the status of electric connection of the electrode units is output. Furthermore, based on the output signal, a binary signal representing the presence or absence of electrical connection of the electrode units is output. The determining unit determines the presence or absence of the liquid at the electrode units based on the binary signal output from the-liquid detecting circuit.

Abstract: A liquid-amount detecting apparatus detects the amount of a liquid in containers. The liquid-amount detecting apparatus includes a liquid detecting circuit and a determining unit. The liquid detecting circuit includes electrode units disposed so as to be in contact with the liquid in the containers, which becomes electrically conductive when in contact with the liquid, an impedance, and an AC-signal source. An AC signal not containing a DC component is input from the AC-signal source to the electrode units through the source impedance, and a signal representing the status of electric connection of the electrode units is output. Furthermore, based on the output signal, a binary signal representing the presence or absence of electrical connection of the electrode units is output. The determining unit determines the presence or absence of the liquid at the electrode units based on the binary signal output from the liquid detecting circuit.