摘要:
An energy converter according to the present invention includes a filament 11 for converting given energy into electromagnetic waves and radiating the waves, and a radiation suppressing portion for suppressing some of the electromagnetic waves (e.g., infrared rays), which have been radiated from the filament 11 and of which the wavelengths exceed a predetermined value. The radiation suppressing portion has a bundle 12 of fine wires 12a, of which the axial direction is aligned with a direction in which the electromagnetic waves propagate with their radiations suppressed.
摘要:
An incandescent bulb filament having a flat Light-emitting surface and high Lamp efficiency and an incandescent bulb using this filament are provided. This incandescent bulb filament is characterized in that it is a filament of ribbon shape placed on one plane, and it includes: spaced portions which are placed side by side with spaces; and connecting portions which connect the spaced portions electrically in series. Each spaced portion has a thickness that is one half the width of the spaced portion or more, and the space between at least one pair of adjacent spaced portions is less than five times the width of the spaced portion.
摘要:
An incandescent lamp according to the present invention includes a radiator (such as a filament 102), which includes a plurality of cavities 120 that are arranged on at least some area of its surface in order to suppress radiations having wavelengths that are longer than a predetermined value, and a glass bulb 101 for shutting off the filament 102 from the air. The area of the filament 102 includes a layer including tungsten and carbon (such as a tungsten carbide layer), and a gas including carbon and an inert gas are enclosed within the glass bulb 101.
摘要:
An energy converter according to the present invention includes a heat source (radiator 1), which receives externally applied energy and raises its temperature, thereby emitting electromagnetic radiations, and a radiation cut portion (mesh 2) for cutting down infrared radiations, of which the wavelengths are longer than a predetermined wavelength. The mesh 2 is a woven or knitted mesh of metal wires. The openings of the woven or knitted mesh have an aperture size that is smaller than the predetermined wavelength.
摘要:
An incandescent bulb filament having a flat light-emitting surface and high lamp efficiency and an incandescent bulb using this filament are provided. This incandescent bulb filament is characterized in that it is a filament of ribbon shape placed on one plane, and it includes: spaced portions which are placed side by side with spaces; and connecting portions which connect the spaced portions electrically in series. Each spaced portion has a thickness that is one half the width of the spaced portion or more, and the space between at least one pair of adjacent spaced portions is less than five times the width of the spaced portion.
摘要:
A radiator 1 according to the present invention converts heat into electromagnetic waves and then radiates the electromagnetic waves through its surface. A number of microcavities are made in at least some areas on the surface, and the surface of the microcavities 2 is covered with a layer including tungsten that is bonded to carbon.
摘要:
An energy converter according to the present invention includes a heat source (radiator 1), which receives externally applied energy and raises its temperature, thereby emitting electromagnetic radiations, and a radiation cut portion (mesh 2) for cutting down infrared radiations, of which the wavelengths are longer than a predetermined wavelength. The mesh 2 is a woven or knitted mesh of metal wires. The openings of the woven or knitted mesh have an aperture size that is smaller than the predetermined wavelength.
摘要:
An energy converter according to the present invention includes a filament 11 for converting given energy into electromagnetic waves and radiating the waves, and a radiation suppressing portion for suppressing some of the electromagnetic waves (e.g., infrared rays), which have been radiated from the filament 11 and of which the wavelengths exceed a predetermined value. The radiation suppressing portion has a bundle 12 of fine wires 12a, of which the axial direction is aligned with a direction in which the electromagnetic waves propagate with their radiations suppressed.
摘要:
A method for producing a high pressure discharge lamp including a luminous bulb enclosing a luminous substance inside and a sealing portion for retaining airtightness of the luminous bulb, includes preparing a glass pipe for a discharge lamp including a luminous bulb portion that will be formed into a luminous bulb of a high pressure discharge lamp and a side tube portion extending from the luminous bulb portion; inserting a glass member constituted by a second glass having a softening point lower than that of a first glass constituting the side tube portion into the side tube portion, and then heating the side tube portion so as to attach the glass member and the side tube portion; and after the attachment step, heating a portion including at least the glass member and the side tube portion at a temperature higher than a strain point temperature of the second glass and lower than a strain point temperature of the first glass.
摘要:
A method for producing a high pressure discharge lamp unit including a high pressure discharge lamp set and fixed to a reflecting mirror includes the steps of detecting light released from a point-like light source and reflected at a reflecting surface of the reflecting mirror to determine a position for setting that is a position of the point-like light source in which the reflected light is substantially the maximum; identifying a predetermined position between electrodes of the high pressure discharge lamp; and matching the predetermined position to the position for setting.