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KR-20260062172-A - MULTI-LUMINOUS LIGHT BUOY

KR20260062172AKR 20260062172 AKR20260062172 AKR 20260062172AKR-20260062172-A

Abstract

A multi-luminescent buoy is disclosed. The present invention forms three light distribution angles using a single lens so that light distribution patterns are output at near, medium, and far distances, and can improve the mixing characteristics of light output from a light source.

Inventors

  • 주재영
  • 박창주
  • 이윤철
  • 조미령
  • 류가영
  • 표지수

Assignees

  • 한국광기술원

Dates

Publication Date
20260507
Application Date
20241025

Claims (8)

  1. As a floating buoy in the sea, Mixing different colored lights output from the light source unit (131), The above mixed light is refracted and reflected through the reflection part (133) to the lens part (134, 134') which is divided into a plurality of regions (134a, 134'a, 134b, 134'b, 134c, 134'c), and A multi-emitting buoy comprising: a light source module (130, 130') that operates to output the mixed light through the separated areas (134a, 134'a, 134b, 134'b, 134c, 134'c) at a preset individual beam angle and direction.
  2. In Article 1, The light source module (130, 130') comprises a light source unit (131) composed of a plurality of LED chips that output light of different colors; A rod unit (132) that mixes different colored light input from the light source unit (131) and refracts the mixed light to output it; A reflector (133) that reflects the light mixed in the above rod portion (132) to the lens portion (134, 134'); and A multi-emitting buoy characterized by including a lens portion (134, 134') divided into a plurality of regions (134a, 134'a, 134b, 134'b, 134c, 134'c) so that the mixed light is output at a preset individual beam angle and direction.
  3. In Article 2, The above rod portion (132) is configured with a tapered shape from the incident surface to the exit surface so as to expand the area of the light source that outputs the mixed light, A multi-luminous light buoy characterized by having a convex portion (132a) formed on the above-mentioned emission surface.
  4. In Paragraph 3, A multi-luminous light buoy characterized by the convex portion (132a) having a plurality of cutting surfaces (132b) formed in different shapes along the surface of the convex portion (132a) so that light incident on the rod portion (132) and mixed is refracted in any direction at the convex portion (132a) and output.
  5. In Article 4, A multi-luminous light buoy characterized in that the above-mentioned rod portion (132) is formed such that a portion of the rod portion (132), including the above-mentioned convex portion (132a), is inserted and arranged into the inner side of the above-mentioned reflective portion (133).
  6. In Article 5, A multi-luminous buoy characterized in that the lens portion (134, 134') is a Fresnel lens.
  7. In Article 6, The lens portion (134, 134') comprises a primary region (134a, 134'a) that causes the mixed light to be output at a first beam angle; A secondary region (134b, 134'b) that causes the above-mentioned mixed light to be output at a second beam angle; and A multi-luminous buoy characterized by including a third region (134c, 134'c) that causes the above-mentioned mixed light to be output at a third beam angle.
  8. In Article 7, The above lens portion (134') is characterized by having an auxiliary Fresnel lens (135) additionally configured on the incident surface where the mixed light is incident, in a multi-luminous buoy.

Description

Multi-Luminous Light Buoy The present invention relates to a multi-luminous light buoy, and more specifically, to a multi-luminous light buoy that uses a single lens to form three light distribution angles so that light distribution patterns are output at near, medium, and far distances, and improves the mixing characteristics of light output from a light source. Generally, navigational aids are installed and used at sea to provide positional information regarding the route to navigators operating vessels at night. Navigational aids are artificial indicator facilities designed to provide accurate position information to vessels using navigational assistance facilities for the safe navigation of ships. They utilize devices such as lighthouses or buoys that emit light capable of guiding the route, enabling navigators to perceive this light and obtain information regarding the route. The navigational light installed on the buoy uses an LED lamp to emit light and provides position information. This identification method allows for the identification of the flash (light), flash period (light quality), and the location of the signal station (lighthouse or buoy, etc.), thereby enabling the measurement of the ship's position, maintenance of the course, and safe navigation to the destination. These buoys consist of a body that enables them to float in the sea and a light source installed on the top of the body that emits light. However, buoys move according to the weather conditions at sea, and if the buoy tilts, the angle of the flash emitted from the light beacon (the light from an LED light beacon usually forms a beam angle within ±4° of the vertical divergence angle) is tilted, so the emitted flash is out of the navigator's field of vision and cannot be detected, which can cause deviation from the course and become a cause of accidents. Recently, a light buoy has been proposed that provides appropriate visibility based on the distance at which an observer can observe it, without any dark zones. FIG. 1 is an example diagram illustrating a buoy that provides visibility according to distance according to the prior art. As shown in FIG. 1, the light buoy (1) is configured so that light emitted from the light source module (10) can be observed from a ship (20) located at a first distance of, for example, 1 mile, from a ship (20a) located at a second distance of 4 miles, and from a ship (20b) located at a third distance of 10 miles. FIG. 2 is an example diagram illustrating a light source module of a buoy with improved visibility according to the prior art, and FIG. 3 is an example diagram illustrating an LED chip and optical system structure of a light source module according to the prior art. As shown in FIGS. 2 and 3, the light source module (10) can be configured to form three light distribution angles with the light source housing (11), and the LED module part (12) can be configured to be composed of a first LED module (12a), a second LED module (12b), and a third LED module (12c), and a lens part (13) can be configured to be composed of a first lens (13a), a second lens (13b), and a third lens (13c) corresponding to each LED module (12a, 12b, 12c). Additionally, an auxiliary lens (12a') may be installed in each of the first LED module (12a), the second LED module (12b), and the third LED module (12c) so that light emitted from the LED module forms a constant beam angle and is output. Additionally, each LED module, for example, the first LED module (12a), may be composed of LED chips that emit red (R), green (G), and blue (B), respectively. However, LED modules according to the prior art have a problem in that the light emitted by each module does not mix with each other after passing through the auxiliary lens (12a'), so the characteristics of the mixed color distribution at close and far distances in the color distribution (12a") are different, resulting in different colors. In addition, since a lens is installed for each LED module (light source) to form a beam angle, there is a problem in that the size of the light source module increases. FIG. 1 is an exemplary diagram illustrating a buoy that provides visibility according to distance according to the prior art. FIG. 2 is an example diagram illustrating a light source module of a buoy with improved visibility according to the prior art. FIG. 3 is an example diagram illustrating the LED chip and optical system structure of a light source module according to the prior art. FIG. 4 is an exemplary diagram illustrating a multi-luminescent buoy according to an embodiment of the present invention. FIG. 5 is a cross-sectional view shown to explain the structure of the light source module of a multi-luminescent buoy according to the embodiment of FIG. 4. FIG. 6 is an exemplary diagram showing the first light intensity distribution of the light distribution pattern formed by the light source module of the multi-luminescent buoy according to the embodiment of FIG. 4. F