CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Stage of International Application No. PCT/JP2019/032555 filed Aug. 21, 2019, claiming priority based on Japanese Patent Application No. 2018-201401 filed Oct. 26, 2018.

TECHNICAL FIELD

The present invention relates to an LED flash light source and a runway-embedded flash lighting device.

BACKGROUND ART

Conventionally, marker lamps for emitting marker light have been embedded under an airfield runway as a guide sign (for example, see Patent Literature 1). In the marker lamp embedded under an airfield runway, a discharge lamp containing xenon is sometimes used as a flash light source.

CITATION LIST

Patent Literature

Patent Literature 1: JP 2000-228103 A

SUMMARY OF INVENTION

Technical Problem

However, a flash lighting device using a xenon flash light source is heavy, has a short life, has a low effective luminous intensity, cannot switch the luminous intensity among high luminous intensity, medium luminous intensity, and low luminous intensity, and consumes a large amount of power. In addition, in the runway-embedded flash lighting device, the flash light source may be damaged by the impact of aircraft-landing.

With the foregoing in mind, it is an object of the present invention to provide a new flash light source for a 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 is excellent in impact resistance.

Solution to Problem

In order to achieve the above object, according to one aspect of the present invention there is provided an LED flash light source for a runway-embedded flash lighting device including: 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 s frame of the frame-shaped attaching plate, the lens member is a lens member that allows an emission surface of flash emitted from the LED 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 placed on the LED module, the frame-shaped attaching plate to which the lens member is attached is placed on the lower shock-absorbing sheet, and the upper shock-absorbing sheet is placed on the frame-shaped attaching plate.

Advantageous Effects of Invention

The LED flash light source for a runway-embedded flash lighting device of the present invention is light, has a long life, has high effective luminous intensity, can switch the luminous intensity, is low in power dissipation, and is excellent in impact resistance.

