JP3202377U - Light source device - Google Patents

Abstract

Provided is a light source device capable of emitting brightness by storing light for a longer period of time by using a phosphorescent material and capable of obtaining a longer insect trapping effect even without a power source. SOLUTION: A light source in which ultraviolet light is transmitted through an ultraviolet light emitting element having a wavelength of 300 nm to 400 nm and a combination of one or more LED elements emitting visible light having a wavelength of 440 nm to 660 nm and a phosphorescent material is contained. The polycarbonate resin cover is covered with the light source part. [Selection] Figure 1

Description

The present invention relates to a light source device, and in particular, an LED (Light Emitting Diode) element is used as a light source, and a light source unit that combines an ultraviolet LED that emits ultraviolet light and a visible light LED that emits visible light is mainly stored with ultraviolet light. An ultraviolet light source device characterized in that a phosphorescent material that can be produced is kneaded in a polycarbonate material that can transmit ultraviolet rays, and this material is covered as a cover of a light source section.

At present, a phosphorescent material used in an insect trap or the like is obtained by applying a phosphorescent agent to paper or a rubber sheet, and a method of storing phosphorescence by irradiation with an ultraviolet lamp is employed. Even if the ultraviolet lamp is turned off, the brightness can be secured with a phosphorescent agent, but it has been required to be improved because it is difficult to maintain the brightness for a long time.

The conventional method cannot reach the phosphorescent material because only the surface is irradiated with light. In addition, since a general polycarbonate material does not transmit ultraviolet rays, even if a phosphorescent material is contained, the brightness is insufficient with only visible light.

Patent Publication 2002-027888

The present invention makes the best use of the characteristics of the material that stores light, sufficiently stores light energy excited from ultraviolet rays, and emits light for a long time, thereby maintaining the insect capturing effect and ensuring brightness. It aims at providing the light source device which can be performed.

The light source device provided by the present invention is a light emitting device in which an LED element that emits ultraviolet light (ultraviolet wavelength of 300 nm to 400 nm) and an LED element that emits visible light (440 nm to 660 nm) is singly or plurally or individually combined. And the light-emitting part is covered with a polycarbonate resin cover that can transmit ultraviolet rays and contains a phosphorescent agent, and transmits ultraviolet rays, while being applied to the phosphorescent agent that is contained, and the emission energy is accumulated. A light source device mainly used for attracting insects.

According to the present invention, the luminous time and the amount of emitted light can be obtained by storing the phosphorescent material into the ultraviolet transmissive polycarbonate resin material, unlike the conventional sheet or printing mainly composed of the coating material. This is because, although the conventional one is mainly based on reflection, the present invention is mainly based on transmission, so that the thickness of the phosphorescent material (the amount of phosphorescent energy) increases. In addition, light can be accumulated in a short time by including the ultraviolet LED element in the light source section. As a result, it is possible to obtain a great effect such as driving by a battery even in a place where a power source cannot be obtained, or maintaining a brightness and ensuring brightness by a phosphorescent effect even in a completely dark room.

In addition, when power is lost, such as a power failure, the phosphorescence time can be long, so it can also be used for assisting safety and security by using displays such as auxiliary lighting or evacuation guidance. Insect lamps are often installed at high places, so it can be expected to have a great effect and contribution to stores and facilities with many unspecified people.

The block diagram of an example of the light source device by this invention is shown Conceptual diagram of phosphorescent agent and LEDUV contained in polycarbonate cover of this light source Conceptual diagram of the LED lighting circuit of this light source unit with a switch

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the drawings of the examples.

In FIG. 1, it is the schematic explaining the structure of the light source device by this invention. In FIG. 1, in the light source part LW, ultraviolet light emitting diodes LEDUV and visible light emitting diodes LEDW are alternately arranged on a printed circuit board WB. At this time, the visible light emitting diode LEDW may be a visible light emitting diode light source combining a red light emitting diode, a green light emitting diode, and a blue light emitting diode. The light source device is composed of an ultraviolet light transmissive polycarbonate cover PC kneaded with a phosphorescent material that covers the light source portion LW and an aluminum rod AL that radiates heat from the LED elements.

FIG. 2 is a cross-sectional view of FIG. An ultraviolet light transmissive polycarbonate cover PC in which a material PH capable of storing light is kneaded is prepared from the ultraviolet light emitting diode LEDUV, and this is put on the light source unit LW. The ultraviolet ray RAY emitted from the LED UV passes through the polycarbonate resin cover and is radiated to the outside. At this time, a part of the ultraviolet ray RAY hits the phosphorescent agent PH and accumulates light energy. This is different from the reflection of the conventional method, and the accumulated energy increases as the thickness increases. For the purpose of attracting insects, the polycarbonate resin material PC is made of a material that can transmit UV light and diffuse well.

FIG. 3 is a conceptual diagram in which a switch is provided in the LED lighting circuit. By providing the switch SW, the ultraviolet LED element is intentionally turned on and off to enable long-term light storage and light emission by the phosphorescent agent PH with a small amount of electric power, and it is easy to maintain the insecticidal effect or ensure brightness. Become. PW is a power supply unit. This power source may be a commercial power source or a battery.

If this light source device is used, the insect trapping effect can be expected by phosphorescence even in places where the power situation is bad. Alternatively, there is an advantage that, for example, long-time illuminance can be obtained by turning on and off by battery driving even in a place where there is no light. It can also be used for auxiliary lighting during evacuation even in the unlikely event of a power failure. It can also be used in places where there is no power supply such as the attic, and it can attract insects indoors even in a weak light environment.

PC ... Polycarbonate cover, WB ... Printed circuit board, AL ... Aluminum rod, LW ... Light source, LEDUV ... Ultraviolet light emitting diode, LEDW ... Visible light emitting diode, PH ... Phosphorescent Agent, RAY ... UV light, SW ... Power switch, PW ... Power supply

Claims (3)

Cover the light source part with a polycarbonate resin cover that transmits ultraviolet light and contains a phosphorescent material to the light source part that is composed of one or a plurality of ultraviolet LED elements (300 nm to 400 nm) and visible light LED elements (440 nm to 660 nm). A light source apparatus mainly for attracting insects. The light source unit can be used as a catcher or as an auxiliary illuminator by providing a switch in the commercial power source or battery-powered power source unit and intentionally turning it on and off to ensure brightness even in the dark part The light source device according to claim 1, wherein The light source part is a light bulb type light source part, a line type light source part or a surface light source type light source part, and covers a polycarbonate which can transmit ultraviolet rays and contains a phosphorescent agent as a cover. The light source device according to 1.

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