KR20110023231A - Rod type led lighting device - Google Patents

Rod type led lighting device Download PDF

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Publication number
KR20110023231A
KR20110023231A KR1020090080947A KR20090080947A KR20110023231A KR 20110023231 A KR20110023231 A KR 20110023231A KR 1020090080947 A KR1020090080947 A KR 1020090080947A KR 20090080947 A KR20090080947 A KR 20090080947A KR 20110023231 A KR20110023231 A KR 20110023231A
Authority
KR
South Korea
Prior art keywords
led
lens unit
led lighting
rod
light
Prior art date
Application number
KR1020090080947A
Other languages
Korean (ko)
Inventor
하재금
Original Assignee
(주)주원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by (주)주원 filed Critical (주)주원
Priority to KR1020090080947A priority Critical patent/KR20110023231A/en
Publication of KR20110023231A publication Critical patent/KR20110023231A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/27—Retrofit light sources for lighting devices with two fittings for each light source, e.g. for substitution of fluorescent tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V5/00—Refractors for light sources
    • F21V5/04—Refractors for light sources of lens shape
    • F21V5/045—Refractors for light sources of lens shape the lens having discontinuous faces, e.g. Fresnel lenses
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/005—Reflectors for light sources with an elongated shape to cooperate with linear light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2103/00—Elongate light sources, e.g. fluorescent tubes
    • F21Y2103/10—Elongate light sources, e.g. fluorescent tubes comprising a linear array of point-like light-generating elements

Abstract

PURPOSE: A ROD shape led lighting apparatus is provided to improve the brightness in the direction to be lighted by preventing the leakage of the light generated from the LED panel. CONSTITUTION: An LED panel comprises an LED substrate(310) and an LED(320). An LED housing(200) comprises a receiving part and a reflector(230). The receiving part accepts the LED panel and the lens unit. The lens unit refracts the light emitted from the LED. A heat radiating unit(100) releases the heat generated by the LED to the outside.

Description

Rod type LED lighting device

The present invention relates to a rod-shaped LED lighting fixture, and more particularly to a rod-shaped LED lighting fixture to improve the brightness of the direction to be prevented by the light emitted from the rod-shaped LED panel to the surroundings.

In recent years, LED lighting, which uses low-power and high-efficiency LED as a light source, replaces fluorescent and incandescent lamps, which are traditional lighting sources, has attracted attention.

LED lighting is not only more energy efficient than fluorescent lamps, but also a long-life and eco-friendly light source. Although the production cost is still more expensive than fluorescent lamps, research on LED lighting is being actively conducted because of these advantages.

Like general lighting, LED lighting can be manufactured in many forms and shapes. Among them, it is possible to produce a bar shape such as a fluorescent lamp of the related art. In the bar-shaped LED lighting, a plurality of LEDs are arranged in a row in a bar-shaped panel.

In the rod-type LED lighting fixtures, a plurality of LEDs are arranged in this manner, but the unit price of LEDs is still higher than that of conventional fluorescent lamps.

In order to solve such a problem, the number of LEDs to be used should be reduced, but if the number of LEDs is reduced, the intensity of the light is weakened so that the user may be dissatisfied. Therefore, in order to reduce the number of LEDs and display luminance satisfactory to the user, it is necessary to develop high-efficiency LED lighting fixtures by concentrating the light to be illuminated.

The present invention has been made to solve the above problems, by concentrating the light in the direction to be illuminated to prevent light leakage around and to reduce the number of LED to provide a rod-shaped LED lighting fixture of the same brightness as before The purpose is to reduce the production cost.

The present invention for achieving the above object, a plurality of LEDs for emitting light; An LED substrate in which the LEDs are arranged in a line; A lens unit provided at the front of the LED to change a traveling path of the light emitted from the LED; It is provided on the side of the lens unit provides a rod-shaped LED lighting luminaire including a reflection shade reflecting the light passing through the lens unit.

It is preferable to vacuum-deposit aluminum or silver on the surface of the reflecting shade.

The inner surface of the lens unit may include an uneven surface, and the uneven surface may have a plurality of sub-curved surfaces in the outward direction of the lens unit.

According to the present invention in the rod-shaped LED lighting fixtures can improve the brightness of the place to be illuminated to reduce the number of LEDs, while maintaining the same brightness as the existing can reduce the manufacturing cost.

The configuration and operation of the embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to Figure 1 and 2 will be described the basic configuration of the rod-shaped LED lighting fixture according to the present invention.

The rod-shaped LED lighting fixture according to the present embodiment includes an LED panel 300, an LED housing 200, a heat dissipation mechanism 100, a lens unit 400, a cover 500.

The LED panel 300 is formed in a rod shape and includes an LED substrate 310 and an LED 320.

The LED substrate 310 is provided with a plurality of LEDs 320 in a line along the length direction, and is connected to a power source (not shown) to supply current to the LEDs 320.

The LED 320 may be provided with each LED emitting a single color of red, green, and blue, or may be provided as an LED package in which red, green, and blue LEDs are bundled. In order to emit white light, it is preferable to be provided as an LED package. In addition, the LED may be provided with a seal containing a fluorescent material.

The LED housing 200 includes a receiving part 240 and a reflection shade 230.

The accommodating part 240 serves to accommodate the LED panel 300 and the lens part 400. To this end, the accommodating part 240 is formed with an LED accommodating groove 210 accommodating the LED panel 300 and a lens accommodating groove 220 accommodating the lens part 400.

The LED receiving groove 210 is formed so that both ends of the LED panel 300 can be worn, it is manufactured to push the LED panel 300. In addition, the lens accommodating groove 220 is formed so that the end of the lens unit 400 can be worn, and is also manufactured to push the lens unit 400.

The lens accommodating groove 220 is provided below the LED housing 200 and configured to pass light emitted from the LED 320.

LEDs have a beam angle of around 120 °, which is not enough to emit light around them. Therefore, in order to use for illumination, it is desirable to irradiate light in a wider direction.

The lens unit 400 refracts the light emitted from the LED 320 to face in a wide direction.

In the present exemplary embodiment, the lens unit 400 includes a bottom plate 410 and a curved portion 420. The base plate 410 serves as a support to be accommodated in the LED accommodating unit 240, it is preferably composed of a transparent glass or PC (Polycarbonate). In addition, the curved portion 420 is to perform a distributed light to be diffused in a wide direction by refracting the light emitted from the LED, it may be formed of a transparent PC.

In the present exemplary embodiment, the lens unit 400 may be integrally formed, but may be separately provided at positions corresponding to the LEDs 320.

Although the rod-shaped LED lighting fixture is mainly provided on the ceiling, the light is preferably irradiated downward, but the light dispersed by the lens unit 400 may leak to the side. This phenomenon is undesirable in rod-shaped LED lighting fixtures that need to focus light downward. Therefore, in order to prevent such a phenomenon, in the present embodiment, the reflection shade 230 is formed in the lower portion of the receiving portion 240 in the LED housing 200.

The reflection shade 230 serves to prevent the light refracted by the lens unit 400 from leaking sideways. That is, the light traveling sideways through the lens unit 400 is reflected by the reflection shade 230 is directed downward.

In this embodiment, the coating layer 232 is provided on the bottom surface of the reflection shade 230 in order to further increase the effect of the reflection shade 230.

The coating layer 232 is to further increase the reflection effect of the reflector 230, first coating a transparent epoxy resin on the lower surface of the reflector 230 and then vacuum-deposited aluminum or silver.

The reflector 230 having the coating layer effectively reflects the light incident through the lens unit 400 in the downward direction to improve the luminance in the direction to be illuminated.

In the present embodiment, the reflection shade 230 is provided integrally with the receiving portion 240, it is preferably provided in an inclined form to adjust the reflection angle of the light.

On the other hand, since the LED 320 generates a lot of heat during operation, a mechanism for dissipating the heat to the outside is required. The heat dissipation mechanism 100 serves to maintain the LED does not exceed a predetermined temperature by emitting heat generated from the LED 320 to the outside.

Heat generated from the LED 320 is transferred to the LED housing 200 through the LED panel 300, the heat through the LED housing 200 is discharged to the outside through the heat dissipation mechanism 100 provided on the upper side do.

The heat dissipation mechanism 100 is in contact with the LED housing 200, in particular in contact with the receiving portion 240 through a large area. In addition, a heat radiation fin 110 is formed in the heat dissipation mechanism in contact with the upper portion of the accommodating part 240 to increase the thermal conductivity.

The cover 500 is installed below the lens unit 400. The cover 500 may be provided with various materials. When the cover 500 is installed as a translucent PC, the cover 500 may prevent glare and expect a light dispersion effect.

Another embodiment of the lens unit 400 will be described with reference to FIG. 3.

In the present embodiment, an uneven surface is formed on the inner surface of the lens unit 400. In addition, the irregularities are formed with a plurality of sub-curved surfaces 430 in the outward direction (downward direction) of the lens unit. In other words, when viewed from the inner surface of the lens unit 400, the curved grooves are formed in the same shape.

The sub-curved surface 430 may further increase the light dispersion effect to provide a higher quality LED lighting fixtures.

1 is a cross-sectional view showing a cross section of a rod-shaped LED lighting fixture according to the present invention;

Figure 2 is an exploded perspective view showing a rod-shaped LED lighting fixture according to the present invention;

Figure 3 is a perspective view of the lens of the rod-shaped LED lighting fixture according to the present invention.

<Description of Major Symbols of State>

100: heat radiating mechanism 200: LED housing

230: reflection shade 240: receiving portion

232: coating layer 300: LED panel

310: LED substrate 320: LED

400: lens unit 500: cover

Claims (3)

A plurality of LEDs emitting light; An LED substrate in which the LEDs are arranged in a line; A lens unit provided at the front of the LED to change a traveling path of the light emitted from the LED; A rod-shaped LED lighting device is provided on the side of the lens unit and includes a reflector for reflecting light passing through the lens unit. The method of claim 1, Rod-shaped LED lighting luminaire, characterized in that the surface of the reflecting shade is vacuum-deposited aluminum or silver. The method according to claim 1 or 2, The inner surface of the lens unit includes an uneven surface, The uneven surface is a rod-shaped LED lighting fixture, characterized in that a plurality of sub-curved surface is formed in the outward direction of the lens portion.
KR1020090080947A 2009-08-31 2009-08-31 Rod type led lighting device KR20110023231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020090080947A KR20110023231A (en) 2009-08-31 2009-08-31 Rod type led lighting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020090080947A KR20110023231A (en) 2009-08-31 2009-08-31 Rod type led lighting device

Publications (1)

Publication Number Publication Date
KR20110023231A true KR20110023231A (en) 2011-03-08

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090080947A KR20110023231A (en) 2009-08-31 2009-08-31 Rod type led lighting device

Country Status (1)

Country Link
KR (1) KR20110023231A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR200455753Y1 (en) * 2011-03-17 2011-09-22 김재성 Lamp with LED lighting unit
CN102679206A (en) * 2011-03-11 2012-09-19 罗姆股份有限公司 LED bulb
CN103244835A (en) * 2012-02-01 2013-08-14 深圳市德泽能源科技有限公司 Apparatus and method for improving LED (light-emitting diode) lighting effects
KR101325793B1 (en) * 2013-03-15 2013-11-04 정재훈 A straight line pipe style light emitted diode lighting lamp
KR101327917B1 (en) * 2012-03-08 2013-11-13 엘에스에이 주식회사 LED Light Having The Shape Of Fluorescent Tube
KR20160011040A (en) * 2014-07-21 2016-01-29 홍순황 Light diffusion pipe to improve illuminance and led illumination device having the pipe

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102679206A (en) * 2011-03-11 2012-09-19 罗姆股份有限公司 LED bulb
KR200455753Y1 (en) * 2011-03-17 2011-09-22 김재성 Lamp with LED lighting unit
CN103244835A (en) * 2012-02-01 2013-08-14 深圳市德泽能源科技有限公司 Apparatus and method for improving LED (light-emitting diode) lighting effects
KR101327917B1 (en) * 2012-03-08 2013-11-13 엘에스에이 주식회사 LED Light Having The Shape Of Fluorescent Tube
KR101325793B1 (en) * 2013-03-15 2013-11-04 정재훈 A straight line pipe style light emitted diode lighting lamp
KR20160011040A (en) * 2014-07-21 2016-01-29 홍순황 Light diffusion pipe to improve illuminance and led illumination device having the pipe

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