摘要:
A lamp includes a semiconductor light-emitting element, a light guiding element, a wavelength converter, a reflecting mirror, and a circuit unit axially disposed within a central section of the outer tube of an envelope. Light emitted by the semiconductor light-emitting element is guided by the light guiding element to be incident on and be converted by the wavelength converter. At least one component of the circuit unit is disposed at a side of the wavelength converter opposite the semiconductor light-emitting element. The reflecting mirror is disposed between the at least one component of the circuit unit and the wavelength converter, and reflects at least part of light received from the wavelength converter back toward the wavelength converter.
摘要:
A lamp pertaining to the present invention has an envelope including a base. The envelope houses semiconductor light-emitting elements, a circuit unit lighting the semiconductor light-emitting elements, and a light-guiding member. The light-guiding member has a hollow portion, and the circuit unit is housed in the hollow portion. The light-guiding member includes a light-receiving portion and a light-emitting portion connected to the light-receiving portion. The light-guiding member is held within the envelope such that the light-emitting portion faces the semiconductor light-emitting elements.
摘要:
A lamp 1 includes a semiconductor light-emitting element 12 and a circuit unit 40 housed in an envelope 2. Within an axially central section of an outer tube 30, a wavelength converter 90 that converts wavelengths of incident light is disposed. The semiconductor light-emitting element 12 is disposed in a region at a side of the wavelength converter 90 facing a base 60 and oriented to have the main emission direction away from the base 60. A light guide 80 is disposed between the wavelength converter 90 and the semiconductor light-emitting element 12 and guides emission light of the semiconductor light-emitting element 12 to the wavelength converter 90. At least one component of the circuit unit 40 is disposed in a region at a side of the wavelength converter 90 opposite the semiconductor light-emitting element 12. A reflecting mirror 50 is disposed between the at least one component of the circuit unit 40 and the wavelength guide 90 and reflects at least part of light received from the wavelength converter 90 back toward the wavelength converter 90.
摘要:
A lamp 1 includes a semiconductor light-emitting element 12 as a light source, a circuit unit 40 that causes the semiconductor light-emitting element 12 to emit light, and an envelope 2 having an outer tube 30 and a base 60. The semiconductor light-emitting element 12 and the circuit unit 40 are housed in the envelope 2. The semiconductor light-emitting element 12 is disposed in a region at a side of an axially central section of the outer tube 30 facing the base 60 and oriented so that a main emission direction points away from the base 60. At least one component of the circuit unit 40 is disposed in a region at a side of the axially central section of the outer tube opposite the semiconductor light-emitting element 12. A light guide 50 that guides emission light of the semiconductor light-emitting element 12 along the axial direction is disposed between the at least one component of the circuit unit 40 and the semiconductor light-emitting element 12. The light guide 50 has a light-diffusing portion corresponding in position to the axially central section of the outer tube 30.
摘要:
A lamp 1 includes a semiconductor light-emitting element 12 as a light source, a circuit unit 40 that causes the semiconductor light-emitting element 12 to emit light, and an envelope 2 having an outer tube 30 and a base 60. The semiconductor light-emitting element 12 and the circuit unit 40 are housed in the envelope 2. The semiconductor light-emitting element 12 is disposed in a region at a side of an axially central section of the outer tube 30 facing the base 60 and oriented so that a main emission direction points away from the base 60. At least one component of the circuit unit 40 is disposed in a region at a side of the axially central section of the outer tube opposite the semiconductor light-emitting element 12. A light guide 50 that guides emission light of the semiconductor light-emitting element 12 along the axial direction is disposed between the at least one component of the circuit unit 40 and the semiconductor light-emitting element 12. The light guide 50 has a light-diffusing portion corresponding in position to the axially central section of the outer tube 30.
摘要:
A lamp comprises: a primary reflective mirror being funnel-shaped and having an opening at one end; LEDs disposed within the primary reflective mirror; a base attached to another end of the primary reflective mirror; and a circuit configured to receive power via the base and cause the LEDs to emit light. The circuit unit is housed in a circuit case and disposed within the primary reflective mirror close to the opening in a direction in which the LEDs emit light. The circuit case has a secondary reflective surface configured to reflect light emitted from the LEDs to a reflective surface of the primary reflective mirror.
摘要:
A light source device is provided such that light emerges mainly from the axially central section of an outer tube and is configured to minimize the risk of thermal damage to electronic components of a circuit unit. The device includes: a semiconductor light-emitting element as a light source; a circuit unit driving the semiconductor light-emitting element to emit light; and an envelope formed from an outer tube and a power connector, the envelope housing the semiconductor light-emitting element and the circuit unit. A light diffuser having a reflective outer surface to diffuse incident light is disposed at least partially in the axially central section of the outer tube. The semiconductor light-emitting element is disposed on a side of the light diffuser at which the power connector is located and in an orientation that its main emission direction points toward the light diffuser.
摘要:
A lamp includes an LED module, a drive unit supplying power to the LED module, and a base via which power is fed from an external power supply to the drive unit. The drive unit is located between the LED module and the base. The drive unit includes a circuit board having a main surface on which lead-type electronic components are mounted, lead wires (first lead wires) extending from the main surface of the circuit board and connected to the LED module, and lead wires (second lead wires) extending from the main surface of the circuit board and connected to the base. The circuit board has a through-hole extending from the main surface to an opposite surface thereof. The lead wires pass through the through-hole.
摘要:
A lamp includes an LED module, a drive unit supplying power to the LED module, and a base via which power is fed from an external power supply to the drive unit. The drive unit is located between the LED module and the base. The drive unit includes a circuit board having a main surface on which lead-type electronic components are mounted, lead wires (first lead wires) extending from the main surface of the circuit board and connected to the LED module, and lead wires (second lead wires) extending from the main surface of the circuit board and connected to the base. The circuit board has a through-hole extending from the main surface to an opposite surface thereof. The lead wires pass through the through-hole.
摘要:
A light bulb shaped lamp according to the present invention includes: a hollow globe; an LED module including a base platform and an LED chip mounted on the base platform, the LED module being provided in the globe; a lead wire for supplying power to the LED module; and a stem extending toward the interior of the globe, in which the base platform is directly fixed to the stem.