A light emitting apparatus includes a light emitting element for emitting light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 430 nm, and a wavelength conversion member for converting at least a portion of light emitted by the light emitting element into light specified by a spectrum having a peak wavelength in a wavelength range from 360 nm to 780 nm. The light emitting apparatus emits illumination light formed by a combination of light that is not converted by the wavelength conversion member, from among light emitted by the light emitting element, and light that is converted by the wavelength conversion member. A total energy of light having a wavelength in a range from 360 to 430 nm is between 3% and 18% of a total energy of light having a wavelength included in a range from 360 nm to 780 nm.

A retrofit trim lighting device is provided. In example embodiments, the retrofit trim lighting device comprises a bracket comprising an opening; at least one torsion spring secured to the bracket and configured to mount the retrofit trim lighting device within a recessed housing; a retrofit housing comprising at least one light engine; and an engagement element. The engagement element is secured to the retrofit housing through the opening of the bracket such that, when so secured, the retrofit housing and the bracket are rotatable relative to one another.

A runway-embedded flash lighting device, including: a body; a ceiling member; a light guide member; and an LED flash light source, wherein the body is configured to be embedded in a runway, the ceiling member is disposed in an upper opening of the body and configured to be exposed to a runway surface when the body is embedded in the runway, the ceiling member includes a flash emission window, the light guide member is disposed in the flash emission window, the LED flash light source is disposed inside the body and configured to emit a flash toward the light guide member, and the light guide member is configured to allow the flash emitted from the LED flash light source to be emitted from the flash emission window to outside the runway-embedded flash lighting device.

The present invention provides a new runway-embedded flash lighting device that is light, has a long life, has high effective luminous intensity, can switch the luminous intensity, is low in power dissipation, and can be placed on the ground with its bottom facing down without requiring a platform or the like. A runway-embedded flash lighting device (1) includes: a cylindrical body (10); a ceiling member (11); a light guide member (12); an LED flash light source (13); and a bottom cover member (16). The cylindrical body (10) can be embedded in a runway, the ceiling member (11) is placed in an upper opening of the cylindrical body (10) in a state of being able to be exposed to a runway surface when the cylindrical body (10) is embedded in the runway, the ceiling member (11) is provided with a flash emission window, the light guide member (12) is placed in the flash emission window, the LED flash light source (13) is placed inside the cylindrical body (10) in a state of capable of emitting flash toward the light guide member (12) placed in the flash emission window, the light guide member (12) allows flash emitted from the LED flash light source (13) to be emitted to an outside from the flash emission window, the bottom cover member (16) is placed in a state of capable of closing the lower opening of the cylindrical body (10), and the bottom cover member (16) is provided with, on an outer surface thereof on a side opposite to the cylindrical body (10), a support portion (17) protruding from the outer surface.

The present invention provides a new runway-embedded flash lighting device that is light, has a long life, has high effective luminous intensity, can switch the luminous intensity, is low in power dissipation, and can be placed on the ground with its bottom facing down without requiring a platform or the like. A runway-embedded flash lighting device (1) includes: a cylindrical body (10); a ceiling member (11); a light guide member (12); an LED flash light source (13); and a bottom cover member (16). The cylindrical body (10) can be embedded in a runway, the ceiling member (11) is placed in an upper opening of the cylindrical body (10) in a state of being able to be exposed to a runway surface when the cylindrical body (10) is embedded in the runway, the ceiling member (11) is provided with a flash emission window, the light guide member (12) is placed in the flash emission window, the LED flash light source (13) is placed inside the cylindrical body (10) in a state of capable of emitting flash toward the light guide member (12) placed in the flash emission window, the light guide member (12) allows flash emitted from the LED flash light source (13) to be emitted to an outside from the flash emission window, the bottom cover member (16) is placed in a state of capable of closing the lower opening of the cylindrical body (10), and the bottom cover member (16) is provided with, on an outer surface thereof on a side opposite to the cylindrical body (10), a support portion (17) protruding from the outer surface.

The present disclosure is directed to in grade light fixtures and recessed luminaires and subassemblies thereof, including, for example, a heat sink and pivot for a recessed luminaire, a gasket for the recessed luminaire, and an outer box and cover for installation of the recessed luminaire. The recessed luminaire comprises: a housing having an internal surface; and a light subassembly engaged with a thermally conductive body, the light subassembly having a first end and a second end, wherein the first end of the light subassembly is pivotally secured to a pivot arranged on, in, or proximate to the internal surface of the housing. The thermally conductive body is in thermal contact with the internal surface of the housing. The recessed luminaire further comprises a dehumidifier.

An aeronautical light aid for a vertical takeoff and landing (VTOL) flying object is provided. The aeronautical light aid includes a plurality of first lighting portions buried in a takeoff and landing port and configured to radiate light in a vertically upward direction, a plurality of second lighting portions provided on an outer side of the takeoff and lighting port and configured to radiate light in an externally upward direction, and a landing guide provided at the center of the takeoff and landing port.

A runway-embedded flash lighting device, includes a body configured to be embedded in a runway; a ceiling member including a flash emission window and disposed in an upper opening of the body and configured to be exposed to a runway surface when the body is embedded in the runway; a light guide member disposed in the flash emission window; an LED flash light source disposed inside the body and configured to emit a flash toward the light guide member; and a heat conducting member, wherein the light guide is configured to allow the flash emitted from the LED flash light source to be emitted from the flash emission window, the heat conducting member is disposed inside the body and includes a first part in contact with the LED flash light source, and a second part in contact with the ceiling member.

A runway-embedded flash lighting device, includes a body configured to be embedded in a runway; a ceiling member including a flash emission window and disposed in an upper opening of the body and configured to be exposed to a runway surface when the body is embedded in the runway; a light guide member disposed in the flash emission window; an LED flash light source disposed inside the body and configured to emit a flash toward the light guide member; and a heat conducting member, wherein the light guide is configured to allow the flash emitted from the LED flash light source to be emitted from the flash emission window , the heat conducting member is disposed inside the body and includes a first part in contact with the LED flash light source, and a second part in contact with the ceiling member.

An LED flash light source for a runway-embedded flash lighting device, includes an LED module; a frame-shaped attaching plate; a lens member; and a shock-absorbing sheet, wherein the lens member is attached to a hollow portion in a frame of the frame-shaped attaching plate, the lens member is configured to allow an emission surface of a flash emitted from the LED module to have a uniform illuminance distribution, the shock-absorbing sheet includes: a lower shock-absorbing sheet; and an upper shock-absorbing sheet, the lower shock-absorbing sheet is disposed on the LED module, the frame-shaped attaching plate to which the lens member is attached is disposed on the lower shock-absorbing sheet, and the upper shock-absorbing sheet is disposed on the frame-shaped attaching plate.