摘要:
A lamp unit (500,600,700,800,900) includes a lamp (200) provided with a mirror (60) and a housing (80) for holding the lamp (200) provided with a mirror. The lamp (200) provided with a mirror includes a discharge lamp (100) including a luminous bulb (10) in which a luminous material is enclosed and a pair of electrodes (12,12') are opposed to each other in the luminous bulb (10); and a pair of sealing portions (20,20') for sealing a pair of metal foils (24) electrically connected to the pair of electrodes (12,12'), respectively; and a reflecting mirror (60) for reflecting light emitted from the discharge lamp (100) and having a front opening (60a) for emitting the reflected light. The lamp (200) provided with a mirror (60) is formed so as to have a non-airtight structure. The housing (80) includes a transmission window (70) made of a material for transmitting light emitted from the front opening (60a) and positioned forward in the emission direction (50) of the front opening (60a) of the reflecting mirror (60).
摘要:
A discharge lamp (100) includes a luminous bulb (10) in which a luminous material (18) is enclosed and a pair of electrodes (12,12') are opposed in the luminous bulb (10); and a pair of sealing portions (20,20') for sealing a pair of metal foils (24,24') electrically connected to the pair of electrodes (12,12'), respectively. At least one of the pair of metal foils (24,24') has a twist, a corrugated, a bent structure or a combination thereof. Alternatively, each metal foil (24,24') forms an angle (θ) with the other (24,24'). Alternatively, at least one (24) of the pair of metal foils (24,24') is integrally formed or plane-welded to a plane-shaped or molybdenum external lead (30). Corresponding methods for producing such lamps are also disclosed.
摘要:
A discharge lamp (100) includes a luminous bulb (10) in which a luminous material (18) is enclosed and a pair of electrodes (12,12') are opposed to each other in the luminous bulb (10); and a pair of sealing portions (20,20') for sealing a pair of metal foils (24) electrically connected to the pair of electrodes (12,12'), respectively. Each of the pair of metal foils (24) has an external lead (30) on a side opposite to a side electrically connected to a corresponding electrode (12) of the pair of electrodes (12,12'). At least one of the pair of the sealing portions (20,20') is provided with a reflective film (40) on a surface of the sealing portion (20) in a portion where a connection portion (32) of the external lead (30) and the metal foil (24) is sealed. The reflective film (40) contains a material having a reflectance larger than that of a material constituting the sealing portion (20).
摘要:
A discharge lamp includes a luminous bulb in which a luminous material is enclosed and a pair of electrodes are opposed to each other in the luminous bulb; and a pair of sealing portions for sealing a pair of metal foils electrically connected to the pair of electrodes, respectively. The pair of metal foils have a pair of external leads on the side opposite to the side electrically connected to the pair of electrodes, respectively. At least one of the pair of external leads is joined to a lead wire for external connection that is to be electrically connected to an external circuit by the plastic flow of a caulking member.
摘要:
A short arc mercury lamp (100) includes a luminous bulb (10) enclosing at least mercury as a luminous material (18) and a pair of electrodes (12,12') opposed to each other; and a pair of sealing portions (20,20') for sealing a pair of metal foils (24,24') electrically connected to the pair of electrodes (12,12'), respectively. The electrode central axis (19) of one of the pair of electrodes (12) is dislocated from the electrode central axis (19') of the other electrode (12'). The shortest distance d (cm) between the head (112) of one of the electrodes (12) and the head (11b) of the other electrode (12') is larger than the value of (6M/13.6π) 1/3 when the total mass of the enclosed mercury is M(g).
摘要:
A method for cleaning a translucent tube for a discharge lamp having a luminous bulb portion includes the steps of introducing a cleaning fluid from one end of the translucent tube; and allowing the cleaning fluid to flow while bringing the cleaning fluid in contact with at least an inner face of the luminous bulb portion of an inner face of the translucent tube, thereby removing impurities attached on the inner face of the luminous bulb portion.
摘要:
A method for producing a discharge lamp of the present invention includes the steps of: preparing a glass pipe (50) for a discharge lamp having a luminous bulb portion (10) and a side tube portion (22), and a single electrode assembly (40) including an electrode structure portion (42) that will be formed into a pair of electrodes of the discharge lamp; inserting the single electrode assembly (40) into the glass pipe (50) for a discharge lamp such that the electrode structure portion (42) of the single electrode assembly (40) is positioned in the luminous bulb portion (10) of the glass pipe (50) for a discharge lamp; forming a luminous bulb in which the electrode structure portion (42) is arranged inside by attaching the side tube portion (22) of the glass pipe (50) for a discharge lamp to a part of the single electrode assembly (40); and forming a pair of electrodes (12,12') in the luminous bulb by melting and cutting a part (18) of the electrode structure portion (42) selectively.
摘要:
A lamp unit (500,600,700,800,900) includes a lamp (200) provided with a mirror (60) and a housing (80) for holding the lamp (200) provided with a mirror. The lamp (200) provided with a mirror includes a discharge lamp (100) including a luminous bulb (10) in which a luminous material is enclosed and a pair of electrodes (12,12') are opposed to each other in the luminous bulb (10); and a pair of sealing portions (20,20') for sealing a pair of metal foils (24) electrically connected to the pair of electrodes (12,12'), respectively; and a reflecting mirror (60) for reflecting light emitted from the discharge lamp (100) and having a front opening (60a) for emitting the reflected light. The lamp (200) provided with a mirror (60) is formed so as to have a non-airtight structure. The housing (80) includes a transmission window (70) made of a material for transmitting light emitted from the front opening (60a) and positioned forward in the emission direction (50) of the front opening (60a) of the reflecting mirror (60).
摘要:
A method for cleaning a translucent tube for a discharge lamp having a luminous bulb portion includes the steps of introducing a cleaning fluid from one end of the translucent tube; and allowing the cleaning fluid to flow while bringing the cleaning fluid in contact with at least an inner face of the luminous bulb portion of an inner face of the translucent tube, thereby removing impurities attached on the inner face of the luminous bulb portion.
摘要:
A discharge lamp (100) includes a luminous bulb (10) in which a luminous material (18) is enclosed and a pair of electrodes (12,12') are opposed in the luminous bulb (10); and a pair of sealing portions (20,20') for sealing a pair of metal foils (24,24') electrically connected to the pair of electrodes (12,12'), respectively. At least one of the pair of metal foils (24,24') has a twist, a corrugated, a bent structure or a combination thereof. Alternatively, each metal foil (24,24') forms an angle (θ) with the other (24,24'). Alternatively, at least one (24) of the pair of metal foils (24,24') is integrally formed or plane-welded to a plane-shaped or molybdenum external lead (30). Corresponding methods for producing such lamps are also disclosed.