JPH06319410A - Lighting unit for live fish water tank - Google Patents

Abstract

PURPOSE:To provide a lighting unit capable of calming down live fishes by arranging and installing the unit in a water tank utilized for the ecological research on the live fishes in the space. CONSTITUTION:The lighting unit is obtained by boring plural holes through a transparent plate 7, arranging light-emitting diodes 3 in each thereof, emitting light having a low calorific value at a low illuminance from the light-emitting diodes 3 and irregularly reflecting the light into the water tank with the transparent plate 7. Thereby, the interior of the water tank can be converted into a slightly bright environment without any change in temperature and live fishes in the water tank can be calmed down so as to quietly sleep. As a result, ecological experiments, etc., on the live fishes in the space can smoothly be carried out.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an illuminating unit for a live fish tank, which is applied to an environment where live fish is calmed down in a small water tank in space experiments and the like.

[0002]

2. Description of the Related Art Generally, when a fish is used in a live fish tank, if the inside of the tank is dark, the live fish is often shaken and damaged.

As a conventional device that does not damage live fish, the "Underwater Lighting Fixture" filed on April 27, 1983 (Utility Model Registration Application Publication No. 62501 in 1983) has been published.
No.) is known.

"Underwater lighting fixture" which is the above conventional device
Was to put an illuminating lamp in which a fluorescent lamp was installed in a sealed container in a live-fish and aquaculture tank so that the inside of the tank had an appropriate brightness, and especially to calm sardines.

[0005]

At present, an ecological study of live fish in outer space is planned, but the following functions are required for a device used in outer space. (1) In an ecological experiment to detect brain waves of live fish in a small aquarium such as a space experiment, in order to calm most live fish,
It is necessary to illuminate a wide range in the aquarium with low illuminance. (2) The space experiment device is small and lightweight, consumes little power, and it is necessary that the inside of the small water tank does not change in temperature. (3) It is necessary to keep the seal of the water tank installed in the water tank. (4) In the space experiment device, improving reliability is a particularly important issue.

When the above-mentioned conventional apparatus "underwater lighting fixture" is used in the space experiment, there are the following problems. (1) It is suitable for large-scale aquaculture tanks that require a large amount of light, but for live fish in ecological experiments, it is too illuminant and small (for example,
Not suitable for live fish tanks of about 0.04 m ³ . (2) Many parts are required to seal the fluorescent lamp and prevent it from being damaged. (3) It requires a member for fixing the lighting container in water and is not suitable for a small water tank. (4) The power consumption of fluorescent lamps, halogen bulbs, and tungsten bulbs is large. (5) Since it is necessary to turn on the lighting all the time, the temperature inside the small water tank rises with the above light bulb. (6) The above light bulb cannot withstand vibrations such as launching in space experiments (reliability is low). The present invention is intended to solve the above problems.

[0007]

A lighting unit for a live fish tank according to the present invention comprises a transparent plate having a plurality of holes on its surface, a light emitting diode which is provided in each hole of the transparent plate and emits light toward the inside of the tank. And a filling material for sealing the light emitting diode together with an electric wire provided on the back surface of the light emitting diode and connected to the light emitting diode, and the transparent plate is arranged in a water tank through a seal ring material. .

[0008]

In the above, when the light emitting diode is energized from the external power source through the electric wire, the light emitting diode emits light,
Randomly fired by a transparent plate to illuminate the inside of the aquarium with a low illuminance to calm live fish.

Since the light emitting diode consumes less power and generates less heat, the temperature in the water tank does not change, the environment in which live fish is maintained is maintained, and the safety is improved. Further, the apparatus of the present invention can be used for a long time because the watertightness is maintained by the filling material and the seal ring material, and the lamp does not burn out, and the reliability is improved.

According to the above, since the inside of the aquarium is slightly bright and the environment where the temperature does not change can be maintained, the live fish in the aquarium can be calmed down to the extent that it can sleep, and the ecological experiment of live fish in outer space, etc. Can be done smoothly.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention is shown in FIGS.
It shows in (b).

The illumination unit 2 of this embodiment shown in FIGS. 1 and 2A and 2B is provided with a transparent plate (made of polycarbonate or the like) 7 having a plurality of holes, and a hole of the transparent plate 7. A plurality of light emitting diodes 3 that emit light toward the water tank 1, and the transparent plate 7 that is connected in series to the light emitting diodes 3
4, a resistor 4 provided on the back surface of the light emitting diode 3, a sealing filler (made of epoxy resin or the like) 8 provided on the back surface of the light emitting diode 3 and the resistor 4, and the transparent plate 7
Of the electric wire coating filler 9 that seals the entire back surface of the
The light-emitting diode 3 connected in series with the resistor 4 is connected to the power supply unit 6 through the electric wire 5 penetrating the electric wire coating filler 9, and the edge of the transparent plate 7 is the seal ring material 10, 1.
The space between 1 and the water tank 1 is sealed.

In the above, a plurality of light emitting diodes 3
When electricity is applied to the power source 6 through the electric wire 5, the light emitting diode 3 emits light and is diffusely reflected by the transparent plate 7, so that the water tank 1
It illuminates a wide area with low illuminance (about 20 watts) to calm live fish.

Since the light emitting diode 3 consumes less power (about 1/4 of the conventional device) and generates less heat, the water tank 1
The internal temperature does not change, and the environment in which live fish sustain life is maintained, and safety is improved.

Further, in the apparatus of this embodiment, the space between the water tank 1 and the water tank 1 is sealed by the seal ring materials 10 and 11, and the light emitting diode 3, the resistor 4 and the electric wire 5 are filled with a seal 8 and filled with a wire 9 for covering the electric wire. Since it is sealed by, the watertightness is maintained, and since the light emitting diode 3 has no lamp burnout or the like, it can be used for a long time and reliability is improved.

According to the above, since the inside of the aquarium is slightly bright and the environment without temperature change can be maintained, the live fish in the aquarium can be calmed down to the extent that it can sleep, and ecological experiments of live fish in outer space, etc. Can be done smoothly.

[0017]

EFFECTS OF THE INVENTION The lighting unit of the live fish tank of the present invention creates a slightly bright inside of the aquarium and an environment where the temperature does not change by the transparent plate diffusely reflecting the light emitted by the light emitting diode having a small amount of heat generation into the aquarium. Because it can be held
The live fish in the aquarium can be calmed down to the extent that they can sleep, and the ecological experiment of live fish in outer space can be smoothly performed.

[Brief description of drawings]

FIG. 1 is an explanatory diagram showing a state in which a device according to an embodiment of the present invention is attached to a water tank.

2A and 2B are explanatory views of the apparatus according to the above-described embodiment, FIG. 2A is a side sectional view, and FIG. 2B is a view taken along the line AA of FIG.

[Explanation of symbols]

 1 Water Tank 2 Lighting Unit 3 Light Emitting Diode 4 Resistor 5 Electric Wire 6 Power Supply 7 Transparent Plate 8,9 Filling Material 10,11 Seal Ring Material

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mitsuru Watado 2-4-1 Hamamatsucho, Minato-ku, Tokyo Inside the Space Development Enterprise (72) Inventor Akira Yamamoto 1-1-1 Wadasaki-cho, Hyogo-ku, Kobe No. 1 Sanryo Heavy Industries Co., Ltd.Kobe Shipyard (72) Inventor Masaya Hagi 1-1-1, Wadasakicho, Hyogo-ku, Kobe Sanryo Heavy Industries Co., Ltd. Kobe Shipyard (72) Inventor Tetsuro Kitsuregawa, Hyogo-ku, Kobe 1-1-1 Wadasakicho Sanryo Heavy Industries Ltd. Kobe Shipyard

Claims (1)

[Claims] 1. A transparent plate having a plurality of holes on its surface, a light emitting diode which is provided in each hole of the transparent plate and emits light toward the inside of a water tank, and a rear face of the light emitting diode which is connected to the light emitting diode. An illumination unit for a live fish tank, comprising a filling material for sealing the light emitting diode together with the electric wire, and the transparent plate is disposed in the water tank via a seal ring material.