CN203771154U - Wide-beam-angle light-emitting diode (LED) light source device - Google Patents

Abstract

The utility model discloses a wide-beam-angle light-emitting diode (LED) light source device which comprises a lamp cap, a radiator, a substrate, a main light source LED fixed on the substrate, and a spherical-crown-shaped blister, and the wide-beam-angle light-emitting diode (LED) light source device is characterized by also comprising a backlight LED arranged on the outer side of a main light source LED array and a light guide plate communicated with a light path; a light acceptance end of the light guide plate is embedded into the backlight LED through a strip-shaped pit; the light guide plate and the substrate are fixed on the end face of the radiator through a screw hole, so that the backlight LED and the light guide plate are in light path coupling; multiple light guide plates provided with multiple light guide points are erected at the periphery of the radiator, so that a wide-beam column-bulb-shaped LED light source with large luminous area is formed. Obviously, the wide-beam-angle LED light source device disclosed by the utility model has the advantages that the all-around luminous performance of the LED bulb is obviously improved, and the lighting range and three-dimensional lighting effect of the distributed lamps are improved. Therefore, the defects existing in the process of replacing a traditional incandescent bulb by using an LED bulb can be effectively eliminated, the LED bulb can be widely applied and has illumination and artistic decoration effects, even the lampshade can be omitted, and the lamps are directly used.

Description

A kind of angle pencil of ray corner LED light supply apparatus

Technical field

The utility model belongs to semiconductor lamp field, is specially a kind of angle pencil of ray corner LED light supply apparatus.

Background technology

Existing LED bulb is in order to prevent that luminous efficiency from declining, the lost of life, and the heat that LED chip need be produced effectively distributes, therefore have the necessary assembly that the long-pending Aluminium Radiator of certain surface becomes bulb.This radiator itself is not illuminator but has occupied most of volume of bulb, in addition the light direction of LED is strong and be mounted on the substrate of radiator end face, its luminous can only be to send perpendicular to the direction of radiator end face, along sink side towards surrounding space luminous a little less than, even if the crown cell-shell configuring has certain light diffusing, but also very limited to the improvement that peripheral space is luminous, generally speaking, the largest beam angle of existing LED bulb is less than 120 ° conventionally.Therefore, this structure of existing LED bulb belongs to " spherical crown shape " illuminator light supply apparatus, with regard to its illumination, is that light-emitting area is long-pending little, light direction is strong, the narrow space cloth optical range that causes of beam angle is little with the open defect in effect aspect.So, novel energy-conserving alternative source of light as conventional incandescent bulb, LED bulb is difficult to replace completely in a lot of illumination occasions, and inapplicable especially have ornamental, the light fixture of translucent cup type lampshade or sheet lamp shade is (as pendent lamp, wall lamp, Down lamp etc.) upper application, its key issue is its solid space characteristics of luminescence or effect of being different from incandescent lamp, be that the shade that area is larger can appear in non-luminous radiator on the lampshade of light fixture, luminous concentrated spherical crown shape cell-shell forms obvious clear zone on the lampshade of light fixture, thereby cause the lampshade surface of light fixture to occur bright dark uneven phenomenon, greatly affect illumination and the decorative effect of supporting light fixture, and limited the products innovation of supporting light fixture.

Summary of the invention

The object of this invention is to provide a kind of angle pencil of ray corner LED light supply apparatus, the defect that light-emitting area is little, beam angle is narrow being caused because of this structure problem of radiator to overcome existing LED bulb.

The object of this invention is to provide a kind of angle pencil of ray corner LED light supply apparatus, to open up the innovative design of LED light fixture and supporting light fixture thereof.

The utility model is on basis at existing LED bulb structure, utilize again the LGP technology of existing laser scoring, the LGP of backlight LED and optically-coupled thereof is set in the light-emitting area of LED bulb, a plurality of LGPs make the outer surface can whole, luminous equably, and jointly form " post ball bubble " type three-dimensional light source device with the spherical crown shape light-emitting area that main light source LED produces.To improve the space omnidirectional light-emitting performance of LED light source, thereby realize the space cloth optical range that greatly increases join light fixture.Further, also can be at LGP in shape, and on surface, scribe the light guiding points with ornamental word and arranged in patterns, realize the landscaping effect of design.

Therefore, the technical solution adopted in the utility model comprises lamp holder, dead ring, radiator, power supply, substrate be fixed on main light source LED and the spherical crown shape cell-shell on substrate, it is characterized in that also comprising the backlight LED that is arranged on main light source LED array outside, with the LGP communicating with its light path, wherein the light-receiving end of LGP is entrenched on backlight LED 8 via bar shaped hole groove, by screw, LGP 9 and substrate 5 are fixed on radiator end face again, so that backlight LED and LGP form light path coupling to emit beam to LGP, a plurality of LGPs that distribute numerous light guiding points on it stand on the periphery of radiator, form light-emitting area large, the LED light source of angle pencil of ray.

Described backlight LED has more than 2 groups, and every group has 1 LED at least, is positioned at the periphery of main light source LED array along circumferential arrangement.

Described LGP is curved surface, and with bar shaped, cheats groove on the inner surface of light-receiving end, and this bar shaped hole groove is entrenched on backlight LED, and the concave surface of LGP is towards the surface of radiator.

The high reflectivity film of applying ointment or plaster on the concave surface of described LGP and the outer surface of light-receiving end.

The light guiding points of scribing on described LGP can be decorative pattern.

Obviously, the utility model is by the backlight that installs additional specially and the light conducting plate structure of optically-coupled thereof, greatly increased the light-emitting area of the existing bulb of LED, and jointly form the three-dimensional light source device of " post ball bubble " type with the spherical crown shape light-emitting area that main light source LED produces, make the beam angle of LED bulb be greater than 320 °, thereby obviously improved the omnibearing luminous performance of LED bulb, increased join the cloth optical range of light fixture, the three-dimensional illumination effect that has kept conventional incandescent bulb, thereby can effectively eliminate the defect existing in current LED bulb replacement conventional incandescent bulb process and be widely used, make its adaptability stronger, illumination and artistic decorative effect are better.

Accompanying drawing explanation

Fig. 1: general structure schematic diagram of the present utility model.

Fig. 2: the structural representation of the utility model exiting surface during without spherical crown shape cell-shell.

Fig. 3: LGP schematic diagram of the present utility model.

In figure: 1, lamp holder; 2, dead ring; 3, radiator; 4, power supply; 5, substrate; 6, main light source LED; 7, spherical crown shape cell-shell; 8, backlight LED; 9, LGP; 10, bar shaped hole groove; 11, high reflectivity film; 12, pattern; 13, screw.

The specific embodiment

As Fig. 1, Fig. 2, shown in Fig. 3, the utility model comprises the lamp holder 1 of existing LED bulb, dead ring 2, radiator 3, power supply 4, substrate 5 be fixed on main light source LED6 and the spherical crown shape cell-shell 7 on substrate 5, it is characterized in that also comprising the backlight LED 8 that is arranged on main light source LED6 array outside, with the LGP 9 that communicates with its light path of its light of conduction, wherein the light-receiving end of LGP 9 is entrenched on backlight LED 8 via bar shaped hole groove 10, by fixing threaded hole 13, the two is fixed on radiator 3 end faces together again, so that backlight LED 8 forms light path coupling with LGP 9, a plurality of LGPs 9 that distribute numerous light guiding points on it stand on radiator 3 peripheries, form the LED light source of angle pencil of ray.The light-emitting area that is LGP 9 can be longitudinal arc, and its light-receiving end is entrenched on backlight LED 8, and itself and backlight LED 8 form light path coupling, and a plurality of LGPs 9 stand on radiator 3 peripheries, and formation light-emitting area is large, the LED light source of light beam angular width.

Above-mentioned backlight LED 8 has more than 2 groups, and every group has 1 LED at least, is positioned at the outside of main light source LED6 array and along circumferential arrangement.As Fig. 2 is provided with 3 groups of backlight LEDs 8 on substrate 5, every group of backlight 8 contains 3 LED, and it is between the outside of main light source LED6 array and the outer rim of substrate 5, and wherein LED arranges and is welded on substrate 5 along circular path.

Above-mentioned LGP 9 is curved surface, and the light-receiving end inner surface of LGP 9 is provided with bar shaped hole groove 10, and this bar shaped hole groove 10 is entrenched on backlight LED 8, and the concave surface of LGP 9 curved surfaces is towards the surface of radiator 3.

The illumination effect of considering LGP 9 is abundant, the high reflectivity film 11 of applying ointment or plaster on the concave surface of above-mentioned LGP 9 and light-receiving end outer surface.

The curved surface of above-mentioned LGP 9 is arcs, petal etc., so that the utility model can form the various three-dimensional art moulding such as petal, cucurbit in appearance, and the three-dimensional art moulding such as petal of the Surface forming of above-mentioned LGP 9 can be higher than the height of lamp holder 1, be about to lamp holder 1 and surround or cover, form a complete three-dimensional decorative property design.

Further contemplate art and the effect of publicity of LGP 9 surperficial picture and text, the light guiding points of scribing on above-mentioned LGP 9 is word and decorative pattern 12, and light guiding points forms word and decorative pattern 12.

Above-mentioned LGP 9 is that optical grade acrylic transparent material is made.

As embodiment, as shown in Figure 1, Figure 2, the utility model has 3 LGPs 9 respectively corresponding to 1 group of backlight LED 8, on the inner surface of its light-receiving end, with bar shaped, cheat groove 10, and laminate on substrate 5, bar shaped hole groove 10 is entrenched on 3 backlight LEDs 8, then by fixing threaded hole 13, the two is fixed on radiator 3 end faces together; The outer surface of the LGP 9 light-receiving ends high reflectivity film 11 of applying ointment or plaster, to avoid the outside scattering of light of backlight LED 8, and by the light LGP 9 that leads; By existing laser scoring technology distribute on LGP 9 density, light guiding points not of uniform size, make it to the light of backlight LED 8, carry out scattering; The high reflectivity film 11 of applying ointment or plaster on the concave surface of LGP 9, with by the scattered beam of all light guiding points again to external reflectance, make the convex surface of LGP 9 can whole, space luminescence towards periphery equably, thereby the light of backlight be converted into surface source luminescence.Light guiding points also can be arranged by art pattern form, form, to produce ornamental luminous pattern 12 on LGP 9.The concave surface of LGP 9 is towards radiator 3 surfaces, between adjacent LGP longitudinal edge, leave suitable space, so that radiator surrounding air proper flow, and strengthen as much as possible LGP light-emitting area, beautify LED bulb profile, be specially adapted to the light fixture of ornamental, translucent cup type lampshade or sheet lamp shade, as pendent lamp, wall lamp, Down lamp etc., even can save lampshade etc. and directly apply the utility model.

Claims (6)

1. a LED light source device with angle pencil of ray angle, comprise lamp holder (1), dead ring (2), radiator (3), power supply (4), substrate (5) be fixed on the main light source LED(6 on substrate (5)) and spherical crown shape cell-shell (7), it is characterized in that also comprising and be arranged on main light source LED(6) backlight LED (8) in array outside, with the LGP (9) communicating with its light path, wherein the light-receiving end of LGP (9) is cheated groove (10) via bar shaped and is entrenched on backlight LED (8), by screw (13), LGP (9) and substrate (5) are fixed on radiator (3) end face again, so that backlight LED (8) forms light path coupling with LGP (9), a plurality of LGPs (9) that distribute numerous light guiding points on it stand on the periphery of radiator (3), form the LED light source of angle pencil of ray.

2. light supply apparatus as claimed in claim 1, is characterized in that above-mentioned backlight LED (8) has more than 2 groups, and every group has 1 LED at least, is positioned at the outside of main light source LED (6) array and along circumferential arrangement.

3. light supply apparatus as claimed in claim 1, it is characterized in that above-mentioned LGP (9) is curved surface, and the inner surface of the light-receiving end of LGP (9) is provided with bar shaped hole groove (10), it is upper that this bar shaped hole groove (10) is entrenched in backlight LED (8), and the concave surface of LGP (9) curved surface is towards the surface of radiator (3).

4. the light supply apparatus as described in claim 1 or 3, the curved surface that it is characterized in that above-mentioned LGP (9) is arc, petal.

5. the light supply apparatus as described in claim 1 or 3, high reflectivity film (11) is characterized in that applying ointment or plaster on the concave surface of above-mentioned LGP (9) and the outer surface of light-receiving end.

6. light supply apparatus as claimed in claim 1, is characterized in that the light guiding points of scribing on above-mentioned LGP (9) is decorative pattern (12).