摘要:
With the objective of achieving increased luminous efficiency while suppressing a rise in discharge voltage in a high-definition PDP, a PDP is configured with ribs at intervals between a front plate and a back plate, the ribs partitioning a gap between the front plate and the back plate into spaces. Each space constitutes a discharge cell. A minimum width of a discharge space in the discharge cell is in a range from 65 μm to 100 μm at a position adjacent to a pair of discharge electrodes. A ternary discharge gas of xenon, neon, and helium is enclosed in the discharge space. The partial pressure ratio of xenon in the discharge gas is in a range of 15% to 25%, and the partial pressure ratio of helium is in a range of 20% to 50%. The total pressure of the discharge gas is set between 60 kPa and 70 kPa.
摘要:
A fluorescent lamp (10) includes a discharge tube which is made of transmissive material, has a phosphor layer formed on the inner surface of the discharge tube and is filled with a discharge gas, a first internal electrode (101a) provided at one end of the discharge tube (102) for applying a rectangular alternating voltage of high frequency, a second internal electrode (101b) provided at the opposite end the discharge tube (102) to the first internal electrode (101a), an external electrode (103) provided along the longitudinal direction of the discharge tube (102). A capacitive element (104) for discharging internal charge is electrically connected to the second internal electrode (101b) outside the discharge tube (102).
摘要:
With the objective of achieving increased luminous efficiency while suppressing a rise in discharge voltage in a high-definition PDP, a PDP is configured with ribs at intervals between a front plate and a back plate, the ribs partitioning a gap between the front plate and the back plate into spaces. Each space constitutes a discharge cell. A minimum width of a discharge space in the discharge cell is in a range from 65 μm to 100 μm at a position adjacent to a pair of discharge electrodes. A ternary discharge gas of xenon, neon, and helium is enclosed in the discharge space. The partial pressure ratio of xenon in the discharge gas is in a range of 15% to 25%, and the partial pressure ratio of helium is in a range of 20% to 50%. The total pressure of the discharge gas is set between 60 kPa and 70 kPa.
摘要:
An electrodeless discharge lamp operating device including a light-transmitting discharge bulb 120, an induction coil including a core 103 and a coil 104, and a ballast circuit 140 for supplying a high-frequency power to the induction coil. The operating frequency of the ballast circuit 140 is in the range of 80 kHz to 500 kHz, and where the operating frequency of the ballast circuit 140 is f (kHz) and the power input to the discharge bulb 120 is P (W), the rare gas pressure p (Pa) in the discharge bulb 120 satisfies the relationship of the following expression: p ≥ A P - B f 2 - C [ Expression 1 ] (where A, B and C are constants having the following values: A=4.0×104, B=3.5×104 and C=6.2), and the power input P to the discharge bulb 120 is 7 W at minimum and 22 W at maximum.
摘要:
A dielectric barrier discharge lamp lighting apparatus includes a plurality of dielectric barrier discharge lamps each of which includes an internal electrode sealed at one end, an external electrode arranged outside of a discharge space of the dielectric barrier discharge lamps, and a ballast circuit for applying a high voltage at high frequency between the internal electrode and the external electrode to operate the plurality of dielectric barrier discharge lamps. The plurality of lamps are arranged in parallel, and arranged so that the position of the internal electrode of each dielectric barrier discharge lamp is at different side in the adjacent dielectric barrier discharge lamps, and at the same sides in every other dielectric barrier discharge lamp. The ballast circuit applies voltages at high frequency with difference in phase to adjacent dielectric barrier discharge lamps.
摘要:
A light source device includes a plurality of juxtaposed discharge tubes, each of which includes an internal electrode at least at one end, is made of transmissive material, has a phosphor layer formed at the inner side of the discharge tube, and is filled with a discharge gas containing xenon, an external electrode which is conductive and flat-shaped, is spaced from the plurality of discharge tubes by a specific distance, and is connected electrically to the grounding potential, and a conductive member electrically configured to connect the outer surface of all of the plurality of discharge tubes to the external electrode.
摘要:
An electrodeless discharge lamp is disclosed that comprises a bulb with a substance for electric discharge sealed therein, the bulb having a reentrant portion protruding inwardly along a Z-axis direction; an induction coil arranged in the reentrant portion, the induction coil having a magnetic core and a winding wound around the magnetic core; and a drive circuit for supplying the induction coil with a power from 50 kHz to 1 MHz. The bulb has an outer diameter from 65 mm to 75 mm in a direction orthogonal to the Z-axis direction, and the magnetic core has a length L in the Z-axis direction that is 1.05 times or more a length L′ of the winding in the Z-axis direction, the length L being set to 41 mm or less.
摘要:
A sensor chip is a sensor device for measuring a property of a substance by adsorbing the substance on a surface of the sensor chip. The sensor chip includes a diaphragm having a first surface, a second surface, and at least one through hole penetrating from the first surface to the second surface. At least a part of the first surface, the second surface, and an inner wall surface of the through hole is covered with a noncrystalline solid layer including SiOX as a main component, in which substance X is an element having higher electronegativity than that of silicon.
摘要:
A backlight device 21 is an illumination device having a plurality of internal-external electrode type dielectric barrier discharge lamps. The backlight device 21 has a plurality of internal electrodes respectively arranged inside each of bulb 32 and connected in parallel to a lighting circuit 40 for outputting an AC driving voltage, and an external electrode arranged outside each of the bulbs 32 with a gap 41 and grounded. Holding members 43A to 43C holds the bulbs 32 so that distances between the bulbs 32 and the external electrode 36 are regularly varied seen from a direction of the axial line of the bulb 32.
摘要:
An electrodeless discharge lamp is disclosed that comprises a bulb with a substance for electric discharge sealed therein, the bulb having a reentrant portion protruding inwardly along a Z-axis direction; an induction coil arranged in the reentrant portion, the induction coil having a magnetic core and a winding wound around the magnetic core; and a drive circuit for supplying the induction coil with a power from 50 kHz to 1 MHz. The bulb has an outer diameter from 65 mm to 75 mm in a direction orthogonal to the Z-axis direction, and the magnetic core has a length L in the Z-axis direction that is 1.05 times or more a length L′ of the winding in the Z-axis direction, the length L being set to 41 mm or less.