JPS6398336A - Fishing lamp having directionality - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a fishing light for collecting fish in fishing.

[Conventional technology]

Light sources commonly used in fisheries using fishing lights include incandescent light bulbs, halogen lamps, and metal halide lamps.

Conventionally, when collecting fish at night, the method used was to use multiple fishing lights installed on the ship to illuminate the area around the ship in an almost spherical shape. Currently, each fishing boat is competing to use a large light source.

[Problem that the invention seeks to solve]

If the light source is used as it is in an omnidirectional manner, the amount of light that illuminates the sea surface and contributes to fish collection is about 10% of the total luminous flux, so even if you increase the total luminous flux per light source or increase the number of light sources. , there are limitations in terms of onboard power supply and space,
Equipment costs will also increase.

In general, there are non-directional and directional light sources. However, simply using this as a fishing light is inappropriate because the area of the sea surface to be irradiated moves greatly due to rolling of the ship, etc.

The present invention has been made in view of these circumstances, and aims to save energy and guide schools of fish by effectively using the luminous flux of the light source for attracting fish.

[Means for solving problems]

To achieve this objective, the directional fishing light of the present invention:
It is characterized by comprising means for condensing the light emitted from the light source and means for changing the elevation angle of the light beam.

In consideration of the rolling of the hull, it is preferable that the cross section of the light beam is not circular or square but has a ratio of being narrow in the horizontal direction and wide in the vertical direction.

[Effect]

In the present invention, the fishing light is made directional and illuminates the sea surface to make the long-distance illumination more powerful. At the same time, the light that does not contribute to attracting fish is eliminated as much as possible to save energy, and the angle of depression is varied to improve the visibility of schools of fish. Provide guidance.

In particular, the angle of directivity of the light is made narrower in the horizontal direction and wider in the vertical direction so as not to be affected by the shaking of the light due to the rolling of the ship, and the irradiation angle in the vertical direction can be controlled remotely.

[Example] The present invention will be specifically described below based on an example shown in the drawings.

FIG. 1 is a longitudinal sectional side view of this embodiment, and FIG. 2 is a lateral plan view thereof.

In the present invention, the light source is composed of a short arc metal halide lamp 1 which is more like a point light source, a reflecting mirror 2, a motor 3 that changes the angle of the light beam, and a storage case 4. The lamp 1 and the reflector 2 are fixed to a frame 5, and the frame 5 is attached to a shaft 6 so as to be vertically movable. A partial gear 7 is attached to the frame 5, and the elevation angle is controlled by a gear 8 attached to the output shaft of the motor 3. The motor 3 is configured to be remotely controlled by a remote control device (not shown).

In addition, in the figure, 9 is a protective glass, and 10 is a waterproof frame.

As shown in FIG. 3, a plurality of directional fishing lights having such a configuration are installed in the horizontal direction according to the size and shape of the hull 20, so that the horizontal direction can be illuminated almost evenly. Figure 3 (8) is a plan view, (bl is a front view. In the figure, α is the horizontal irradiation angle for one fishing light, β is the vertical irradiation angle, and θ is the depression angle of the luminous flux. In theory, α-β may be used, but it is not preferable from the viewpoint of guiding fish schools that the range of irradiating the fish school changes due to the rolling of the hull that actually occurs. Therefore, it is set as β>α. Specifically, this is achieved by changing the curvature of the reflector 2 in the horizontal and vertical directions.Also, the depression angle θ is set to 90 degrees or more, so that even when the hull 20 rolls, it maintains a predetermined sea level. This is to make it possible to irradiate.

In addition to being able to illuminate a predetermined sea surface area in this way, by controlling the motor 3 to gradually reduce the depression angle θ of a plurality of fish-collecting lights at the same time, it is possible to guide distant schools of fish closer to the own boat.

In addition, by controlling the depression angles of the port and starboard fish-collecting lights separately and setting the depression angle θ to 0 degrees, the lights are also turned off relative to the sea surface, making it possible to guide fish schools.

In particular, in the past, for example, when fishing for saury, several sticks were set up on both sides of the boat, and fish-collecting lights were attached to the sticks. The method was used for fishing, but by using the fishing light of the present invention and controlling the elevation angle control statement to blink, this rod holder can also be applied to fishing.

In addition, although the said Example shows the case where the reflecting mirror 2 is used as a condensing means, other means, such as a lens, can also be used.

〔Effect of the invention〕

Assuming that the horizontal directivity angle α of the fishing light of the present invention is 20 degrees and the vertical directivity angle β is 60 degrees and the reflection loss of one reflector is 30%, the directional gain of light power is greater than that of the conventional non-directional fish light. Therefore, the optical power at the same power ratio is about 75 times that of the conventional one. For example, when a 500W lamp is used, a similar calculation can yield a luminous flux equivalent to a 37.8KW lamp.

As a result, conventionally, there was a tendency to increase the effect of attracting fish by using a large number of lamps with a large total luminous flux value, but it is now possible to generate a large amount of light power with a small number of lamps, and it is possible to save energy.

Furthermore, by remotely controlling the angle of depression, it is possible to guide schools of fish, opening up new avenues for fishing methods.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional side view of an embodiment of the present invention, FIG. 2 is a cross-sectional plan view thereof, and FIG. 3 is an explanatory diagram of a method of attracting fish using the directional fishing light of the present invention. 1: Lamp 2: Reflector 3: Motor 4: Storage case 5: Frame 6. Axis 7: Partial gear 8: Gear 9: Protective glass 10: Waterproof frame 20: Hull

Claims (1)

[Scope of Claims] 1. A directional fishing lamp characterized by comprising means for condensing light emitted from a light source and means for changing the angle of elevation of the luminous flux. 2. A directional fishing light according to claim 1, characterized in that the directional fishing light has a means for condensing light at a narrow ratio in the horizontal direction and a wide ratio in the vertical direction.