CN204437979U - The LED light source component of a kind of intelligent lighting COB - Google Patents

Abstract

The utility model discloses the LED light source component of a kind of intelligent lighting COB, comprise redness, blueness, green emitting region; Redness, blue-light-emitting discrete region are spaced apart, are namely intervally distributed with a green emitting region between redness and blue-light-emitting region; Green emitting region, around being distributed in around red and blue-light-emitting region, forms overall interconnection region; Red, blue, green emitting overlying regions is made up of the toroidal lens on planar lens and planar lens, and toroidal lens is positioned at the top in blue-light-emitting region.Interconnection region forms the full-color region of closely adjacent RGB, and arbitrary neighborhood redness and blue-light-emitting region are all public multiplexing regions, utilize minimum RGB region to form maximum full-color regions.Blue-light-emitting region utilizes with reflector toroidal lens, substantially avoids blue chip by mistake the exciting green emitting region Green fluorescent material of wherein installing, realizes the raising of blue light emitting region excitation, increases the colour gamut of RGB COB device.

Description

The LED light source component of a kind of intelligent lighting COB

Technical field

The utility model relates to LED light source component technical field, particularly relates to the LED light source component of a kind of intelligent lighting COB.

Background technology

RGB device can realize random color and freely convert, Based Intelligent Control can be carried out according to sight, it is very important intelligent lighting device, the RGB device that the many employings of implementation of current intelligent lighting device are discrete is formed by patch combination, discrete device is a luminescent device, particular color needs adjacent RGB device mixed light to be formed, if the dispersion of RGB device is comparatively opened, easily causes color separation.COB LED component is a kind of face luminous LED device, can improve the uniformity of illuminating effect, be widely used in white-light illuminating field, and the product of intelligent lighting COB device extremely lacks.On the one hand, intelligent lighting COB device needs the RGB light-emitting zone utilizing device inside different to be combined into different colors, the number energy efficient combination increasing RGB light-emitting zone goes out abundanter color, wish but then to minimize cost, one of them important approach reduces RGB light-emitting zone number exactly.In addition, the excitation of light-emitting zone is also an important evaluation index, and therefore, rational intelligent lighting COB device packaging method effectively can increase the colour gamut of intelligent lighting COB device and save production cost simultaneously.

Summary of the invention

The purpose of this utility model is the shortcoming and defect overcoming above-mentioned prior art, provides the LED light source component of a kind of intelligent lighting COB.Utilize and sow discord light-emitting zone spaced apart and overall interconnected light-emitting zone is combined into more full-color region, utilize reflector and compound shape lens simultaneously, avoid outside blue light directly and by mistake exciting indirectly to green emitting phosphor.

The utility model is achieved through the following technical solutions:

A LED light source component of intelligent lighting COB, comprises the emitting red light region 1 of distribution on substrate 9, blue-light-emitting region 2, green emitting region 3;

Emitting red light region 1, the distribution of blue-light-emitting region 2 discrete interval, be namely intervally distributed with a green emitting region 3 between emitting red light region 1 and blue-light-emitting region 2;

Green emitting region 3, around being distributed in emitting red light region 1 and blue-light-emitting region 2 around, forms overall interconnection region;

With compound shape lens above emitting red light region 1, blue-light-emitting region 2, green emitting region 3, these compound shape lens are made up of the toroidal lens 11 on planar lens 10 and planar lens 10, and toroidal lens 11 is positioned at the top in blue-light-emitting region 2.

Each adjacent emitting red light region 1 and blue-light-emitting region 2 are all public multiplexing regions; Emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are combined and are formed full-color region.

Described blue-light-emitting region 2 and green emitting region 3 are provided with blue chip 15, and difference is that the blue chip 15 in green emitting region 3 adopts green emitting phosphor to encapsulate, and the blue-light excited fluorescent material sent by blue chip 15 sends green glow.

Be provided with reflector 4 bottom described blue-light-emitting region 2, the effect of reflector 4 is light by mistake the exciting the green emitting region 3 Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip 15.

The height of described reflector should meet:

$h\≈\frac{b\·r}{\sqrt{a^2-b^2}}---\left(1\right)$

In formula, h is reflector height; A, b are respectively the distance at blue chip 15 center in the center of green emitting phosphor and reflector distance blue-light-emitting region 2; R is the height of green emitting phosphor.

Blue-light-emitting region 2 outgoing blue light by mistake the exciting green emitting region 3 Green fluorescent material that described toroidal lens 11 causes for avoiding being totally reflected by air boundary, the shape of toroidal lens 11 should meet:

$E=\frac{\underset{-{\mathrm{\θ}}_{\max }}{\overset{{\mathrm{\θ}}_{\max }}{\∫}}\cos \mathrm{\θd\θ}}{\underset{-90}{\overset{90}{\∫}}\cos \mathrm{\θd\θ}}---\left(2\right)$

$R=\sqrt{{(d\·{\tan \mathrm{\θ}}_{\max })}^2+{(d-c)}^2}---\left(3\right)$

In formula, E expects the percentage of emergent light energy in blue-light-emitting region 2, its percentage is 60% ~ 95%; θ is emergent light angle; θ _maxfor maximum without total reflection emergent light angle; D is the distance of planar lens 10 upper surface to substrate 9 upper surface; R, c are respectively the radius in toroidal lens 11 center of circle and the distance with substrate 9 upper surface thereof.

The utility model, relative to prior art, has following advantage and effect:

The LED light source component of this intelligent lighting COB, the full-color region of RGB that multiple emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are closely adjacent can be formed, the emitting red light region 1 of arbitrary neighborhood and blue-light-emitting region 2 are all public multiplexing regions, and minimum RGB region so just can be utilized to form maximum full-color regions.

The LED light source component of this intelligent lighting COB, blue-light-emitting region 2 has reflector structure, be designed with toroidal lens above it simultaneously, the existence of reflector and toroidal lens can avoid blue chip by mistake the exciting fluorescent material in green emitting region 3 of wherein installing substantially, the excitation in blue light emitting region can be improved, increase the colour gamut of RGB COB, be conducive to the improvement of illuminating product quality of colour.

Accompanying drawing explanation

Fig. 1 is the top view of the LED light source component of the utility model intelligent lighting COB.

Fig. 2 is Fig. 1, A-A generalized section.

Fig. 3 is Fig. 2, B-B generalized section.

Fig. 4 is that the another kind of the LED light source component of the utility model intelligent lighting COB is red, blue, green emitting areas combine mode schematic diagram.

Fig. 5 is the structural representation one of the LED light source component of the utility model intelligent lighting COB.

Fig. 6 is the structural representation two of the LED light source component of the utility model intelligent lighting COB.

Detailed description of the invention

Below in conjunction with specific embodiment, the utility model is more specifically described in detail.

Embodiment

As shown in Figures 1 to 6.The LED light source component of a kind of intelligent lighting COB of the utility model, comprises the emitting red light region 1 of distribution on substrate 9, blue-light-emitting region 2, green emitting region 3;

Emitting red light region 1, the distribution of blue-light-emitting region 2 discrete interval, be namely intervally distributed with a green emitting region 3 between emitting red light region 1 and blue-light-emitting region 2;

Green emitting region 3, around being distributed in emitting red light region 1 and blue-light-emitting region 2 around, forms overall interconnection region;

With compound shape lens above emitting red light region 1, blue-light-emitting region 2, green emitting region 3, these compound shape lens are made up of the toroidal lens 11 on planar lens 10 and planar lens 10, and toroidal lens 11 is positioned at the top in blue-light-emitting region 2.

Each adjacent emitting red light region 1 and blue-light-emitting region 2 are all public multiplexing regions; Emitting red light region 1, blue-light-emitting region 2, green emitting region 3 are combined and are formed full-color region, achieve and realize maximum full-color regions with minimum RGB region.

Red light chips 13 is installed in described emitting red light region 1, blue-light-emitting region 2 and green emitting region 3 are provided with blue chip 15, difference is that the blue chip 15 in green emitting region 3 adopts green emitting phosphor to encapsulate, and the blue-light excited fluorescent material sent by blue chip 15 sends green glow.

As shown in Figure 5,6.The full-color region of RGB that emitting red light region 1, blue-light-emitting region 2 and green emitting region 3 are closely adjacent, in level and vertical direction, the emitting red light region 1 of arbitrary neighborhood and blue-light-emitting region 2 are all public multiplexing regions, and minimum RGB region so just can be utilized to form maximum full-color regions.

Be provided with reflector 4 bottom described blue-light-emitting region 2, the effect of reflector 4 is light by mistake the exciting the green emitting region 3 Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip 15.

The height of described reflector should meet:

$h\≈\frac{b\·r}{\sqrt{a^2-b^2}}---\left(1\right)$

In formula, h is reflector height; A, b are respectively the distance at blue chip 15 center in the center of green emitting phosphor and reflector distance blue-light-emitting region 2; R is the height of green emitting phosphor.The shape of reflector can be rectangle, circle and conical round table etc., but its height must meet the design formula of above-mentioned reflector height.

Blue-light-emitting region 2 outgoing blue light by mistake the exciting green emitting region 3 Green fluorescent material that described toroidal lens 11 causes for avoiding being totally reflected by air boundary, the shape of toroidal lens 11 should meet:

$E=\frac{\underset{-{\mathrm{\θ}}_{\max }}{\overset{{\mathrm{\θ}}_{\max }}{\∫}}\cos \mathrm{\θd\θ}}{\underset{-90}{\overset{90}{\∫}}\cos \mathrm{\θd\θ}}---\left(2\right)$

$R=\sqrt{{(d\·{\tan \mathrm{\θ}}_{\max })}^2+{(d-c)}^2}---\left(3\right)$

In formula, E expects the percentage of emergent light energy in blue-light-emitting region 2, its percentage is 60% ~ 95%; θ is emergent light angle; θ _maxfor maximum without total reflection emergent light angle; D is the distance of planar lens 10 upper surface to substrate 9 upper surface; R, c are respectively the radius in toroidal lens 11 center of circle and the distance with substrate 9 upper surface thereof.

By die bond technique, blue chip is arranged on blue-light-emitting region 2 and the green emitting region 3 of substrate, red chip is arranged on light-emitting zone 1; Chip electrical connection is realized by gold thread bonding technology.

The encapsulation of green emitting phosphor realizes by methods such as wafer scale coating, spraying, free dispensing formings.

As mentioned above, just the utility model can be realized preferably.

Embodiment of the present utility model is not restricted to the described embodiments; other are any do not deviate from Spirit Essence of the present utility model and principle under do change, modification, substitute, combine, simplify; all should be the substitute mode of equivalence, be included within protection domain of the present utility model.

Claims (6)

1. a LED light source component of intelligent lighting COB, is characterized in that: comprise the emitting red light region (1) of the upper distribution of substrate (9), blue-light-emitting region (2), green emitting region (3);

Emitting red light region (1), the distribution of blue-light-emitting region (2) discrete interval, be namely intervally distributed with a green emitting region (3) between emitting red light region (1) and blue-light-emitting region (2);

Green emitting region (3), around being distributed in emitting red light region (1) and blue-light-emitting region (2) around, forms overall interconnection region;

Emitting red light region (1), blue-light-emitting region (2), green emitting region (3) top are with compound shape lens, these compound shape lens are made up of the toroidal lens (11) on planar lens (10) and planar lens (10), and toroidal lens (11) is positioned at the top of blue-light-emitting region (2).

2. the LED light source component of intelligent lighting COB according to claim 1, is characterized in that, each adjacent emitting red light region (1) and blue-light-emitting region (2) are all public multiplexing regions; Emitting red light region (1), blue-light-emitting region (2), green emitting region (3) combination form full-color region.

3. the LED light source component of intelligent lighting COB according to claim 1, it is characterized in that, described blue-light-emitting region (2) and green emitting region (3) are provided with blue chip (15), difference is that the blue chip (15) of green emitting region (3) adopts green emitting phosphor (14) encapsulation, and the blue-light excited fluorescent material (14) sent by blue chip (15) sends green glow.

4. the LED light source component of intelligent lighting COB according to claim 3, it is characterized in that described blue-light-emitting region (2) bottom is provided with reflector (4), the effect of reflector is light by mistake the exciting green emitting region (3) the Green fluorescent material be adjacent avoiding the direct outgoing of its blue chip (15).

5. the LED light source component of intelligent lighting COB according to claim 4, is characterized in that, the height of described reflector should meet:

$h\≈\frac{b\·r}{\sqrt{a^2-r^2}}---\left(1\right)$

In formula, h is reflector height; A, b are respectively the center of green emitting phosphor and the distance at reflector distance blue-light-emitting region (2) interior blue chip (15) center; R is the height of green emitting phosphor.

6. the LED light source component of intelligent lighting COB according to any one of claim 1 to 5, it is characterized in that, blue-light-emitting region (2) outgoing blue light by mistake the exciting green emitting region (3) Green fluorescent material that described toroidal lens (11) causes for avoiding being totally reflected by air boundary, the shape of toroidal lens (11) should meet:

$E=\frac{\underset{-{\mathrm{\θ}}_{\max }}{\overset{{\mathrm{\θ}}_{\max }}{\∫}}\cos \mathrm{\θd\θ}}{\underset{-90}{\overset{90}{\∫}}\cos \mathrm{\θd\θ}}---\left(2\right)$

$R=\sqrt{{(d\·\tan {\mathrm{\θ}}_{\max })}^2+{(d-c)}^2}---\left(3\right)$

In formula, E is the percentage of expection emergent light energy in blue-light-emitting region (2), and its percentage is 60% ~ 95%; θ is emergent light angle; θ _maxfor maximum without total reflection emergent light angle; D is the distance of planar lens (10) upper surface to substrate (9) upper surface; R, c are respectively the radius in toroidal lens (11) center of circle and the distance with substrate (9) upper surface thereof.