CN110513612A - An LED light source supplementary light device - Google Patents

Abstract

The invention discloses an LED light source supplementary light device, which comprises a carrying component and a fluorescent powder color-complementing film pasted on the carrying component. The entire light emitting area on the component. The supplementary light measure proposed to solve the problem of unsatisfactory light efficiency of LED light source, which cleverly avoids the defect that phosphor powder is not easy to form and manufacture on the LED chip, but solves it through another supplementary light method. The phosphor supplementary color film is carried on the carrying component On, and at least completely cover the entire light emitting area of the LED light source on the carrier component, so that according to the specific color loss of the LED light source, choose a phosphor complementary color film of the appropriate color for flexible and effective complementary color, in order to improve the color rendering index and the required The light effect of a specific color is required.

Description

An LED light source supplementary light device

technical field

The invention relates to the field of LEDs, in particular to an LED light source supplementary light device.

Background technique

In the LED lighting design of various colors on the market, the measures taken are to form an encapsulation layer in front of the blue light chip. The encapsulation layer is made of a mixture of silica gel and phosphor powder. Matching design is carried out, so that the blue light emitted by the blue light chip can form the light of the actual required color after passing through the encapsulation layer, so as to meet the conventional lighting requirements of various colors.

However, in the production of the encapsulation layer, there are problems that phosphors are difficult to sinter (especially red phosphors that are not resistant to high temperatures), and the effective sintering amount is difficult to accurately control. There will always be deviations, especially the greater impact on the color rendering index, which has brought troubles to the actual product design. In view of this, the applicant has deeply

Contents of the invention

The purpose of the present invention is to provide an LED light source supplementary light device, which cleverly avoids the defect of fluorescent powder packaging and manufacturing on the LED chip through another supplementary light method, and finally achieves the improvement of the color rendering index and the light output effect of the required specific color.

In order to achieve the above object, the solution of the present invention is:

An LED light source supplementary light device, comprising a carrier component and a phosphor color complementary film attached to the carrier component, the carrier component is arranged in front of the light emitting direction of the LED light source, and the phosphor color complementary film at least completely covers the LED light source on the carrier component entire light emitting area.

The luminous body of the LED light source is a blue light chip luminous body, and a sapphire fluorescent body is arranged at intervals directly in front of the light-emitting direction of the luminous body. The sapphire fluorescent body is sintered glass powder and fluorescent powder on sapphire. Formed on the surface of the sapphire corresponding to the side facing away from the light emitter.

The fluorescent powder is any one of red fluorescent powder, green fluorescent powder and yellow fluorescent powder or a mixture of any at least two colors.

The fluorescent powder of the fluorescent powder color complementary film is any one of red fluorescent powder, green fluorescent powder and yellow fluorescent powder or a mixture of any at least two colors.

The carrying assembly includes a fly-eye lens and a reflective cup arranged inside and outside; the reflective cup cover is arranged on the periphery of the LED light source, the fly-eye lens is arranged in front of the light emitting direction of the LED light source, and the phosphor complementary color film is attached to the outer surface of the fly-eye lens.

The bearing component also includes a textured cover, which is arranged in front of the fly eye lens, and a fluorescent powder complementary color film is arranged on the inner surface of the textured cover.

After adopting the above-mentioned scheme, a kind of LED light source supplementary light device of the present invention is a supplementary light measure proposed for the problem of the unsatisfactory light effect of the LED light source. The method of supplementary light is used to solve the problem. The phosphor complementary color film is mounted on the supporting component, and at least completely covers the entire light emitting area of the LED light source on the supporting component. In this way, according to the specific color loss of the LED light source, select the phosphor powder of the appropriate color Complementary color film is used as flexible and effective complementary color to improve the color rendering index and the light effect of the specific color required.

Description of drawings

Fig. 1 is a schematic diagram of the first embodiment of the LED light source supplementary light device of the present invention;

Fig. 2 is a schematic diagram of the second embodiment of the LED light source supplementary light device of the present invention;

Fig. 3 is a schematic diagram of the third embodiment of the LED light source supplementary light device of the present invention;

Fig. 4 is a schematic diagram of a fourth embodiment of the LED light source supplementary light device of the present invention.

Label description

LED light source 1, blue light chip emitter 11, sapphire phosphor 12,

Sapphire 121, phosphor 122, phosphor complementary color film 3,

Carrying component 4 , fly eye lens 41 , reflective cup 42 , patterned cover sheet 43 .

Detailed ways

The present case will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

This case involves an LED light source supplementary light device, as shown in FIG. 1 , including a carrier component 4 and a phosphor color complementary film 3 attached to the carrier component 4 . The main function of the carrying component 4 is to carry the fluorescent powder complementary color film 3 so that it is located in front of the light emitting direction of the LED light source 1, so as to play the role of color mixing and supplementary light. Specifically, the carrying assembly 4 is arranged in front of the light emitting direction of the LED light source 1 , and the phosphor complementary color film 3 at least completely covers the entire light emitting area of the LED light source 1 on the carrying assembly 4 .

This case proposes a novel supplementary light measure aimed at the problem of unsatisfactory LED light source light efficiency. It cleverly avoids the defect that phosphor powder is not easy to form and manufacture on LED wafers in the prior art, and solves it by supplementing light. Phosphor supplementary color film 3 The carrier is set on the carrier component 4, and at least completely covers the entire light-emitting area of the LED light source 1 on the carrier component 4. In this way, according to the specific color loss of the LED light source 1, the phosphor complementary color film 3 of the appropriate color is selected to be flexible and effective. Complementary color, in order to improve the color rendering index and the light effect of the required specific color. The fluorescent powder of the fluorescent powder complementary color sticking film 3 can be the existing fluorescent powder of any color, enumerates the embodiment, is any one in red fluorescent powder, green fluorescent powder and yellow fluorescent powder, can also be wherein any two or three of course. color mix. Among them, the application of red phosphor complementary color film is the most practical to solve the actual product problems.

As the second embodiment of this case, as shown in Figure 2, the LED light source 1 proposes an optimal design for correlation and adaptation. The luminous body of the LED light source 1 is a blue light chip luminous body 11, and sapphire fluorescent lights are arranged at intervals directly in front of the light emitting direction of the luminous body. body 12, the sapphire phosphor 12 is sintered glass powder and phosphor powder 122 on sapphire, and the phosphor powder 122 and glass powder are sintered and formed on the surface of the sapphire corresponding to the side facing away from the luminous body. The sapphire phosphor 12 thus constituted is equivalent to including sapphire glass 121 and phosphor powder 122 . The blue light chip emitter excites the phosphor powder 122 to form the required light color, and the phosphor powder 122 can be designed with a corresponding color phosphor according to actual needs. In a specific embodiment, the phosphor powder is red phosphor powder, green phosphor powder and yellow phosphor powder. Any one of the powders or any combination of at least two colors.

The second embodiment is suitable for high-power LED light source 1, because it has high luminous flux and generates high heat, specially designed sapphire phosphor 12 for this problem, sapphire is a transparent temperature-resistant material, and has good light transmission and resistance Good temperature performance, blue light chip illuminant emits high luminous flux blue light passing through sapphire, and the heat generated by it will not cause any adverse effects on the sapphire phosphor 12 as a whole, especially the phosphor 122, ensuring that the LED light source continues to work effectively.

As the third embodiment of this case, as shown in Figure 3, an optimal design is proposed for the structure of the carrying assembly 4, the carrying assembly 4 is the light guide assembly of the LED light source 1, including a fly-eye lens 41 and a reflective cup 42 arranged inside and outside; the fly-eye lens 41 is set at the position directly in front of the light emitting direction of the LED light source 1 to disperse and evenly light the light from the LED light source 1 directly onto the fly-eye lens 41; the reflective cup 42 is set on the periphery of the LED light source 1 to directly irradiate the light from the LED light source 1 The light on the reflective cup 42 is reflected on the fly-eye lens 41 . In a preferred embodiment, the reflective cup 42 and the fly-eye lens 41 are integrally formed and supported on a housing base. Phosphor powder complementary color film 3 is pasted on the outer surface of fly-eye lens 41 .

The carrying component 4 is used as a light guide component, and at the same time, the reflective cup 42 is used to reflect and concentrate light to control the main spot (light angle) and the fly-eye lens 41 to disperse uniform spot treatment, so as to achieve high light efficiency and high uniform light output effect. Specifically, through the function of the reflector 42, the light emitted by the light source, especially the part of the light that is not directly irradiated on the fly-eye lens, is properly reflected and collected, and the light output angle (such as 60-degree light output) is changed while maximizing the use of light source; at the same time, the fly-eye lens 41 is used to evenly disperse the strong light generated at the center of the light source, thereby obtaining high-uniformity and high-efficiency illumination. On the basis of the light guide, the LED light source 1 fully complements the color through the corresponding fluorescent powder color-complementing film 3 , and finally obtains illumination with high uniformity and high display light efficiency, which is especially suitable for application in stage lamps.

As the fourth embodiment of this case, as shown in Figure 4, on the basis of the third embodiment, further, the bearing assembly 4 further includes a pattern cover 43, which is arranged in front of the fly-eye lens 41, and the fluorescent The pink complementary color sticking film 3 is arranged on the inner surface of the pattern cover sheet 43 . This embodiment is preferably suitable for the mixed light design of LED stage lights, using a four-layer mixed light design scheme of reflective cup (TIR) + fly eye lens + sun pattern cover + complementary color film (red phosphor powder), in which the complementary color film ( The red phosphor) is located between the fly-eye lens and the patterned cover sheet, which plays an ideal role, so that the light guide component can play a good role in taking into account the light color rendering and light mixing performance.

Furthermore, the fourth embodiment is combined with the preferred design of the LED light source 1 of the second embodiment. The LED light source 1 of the second embodiment is a planar excitation light source, and the four-layer light mixing and planar excitation light source have High matching, and finally bring high color rendering mixed light effect.

The above descriptions are only preferred embodiments of the present invention, and all equivalent changes and modifications made in accordance with the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims (6)

1. a kind of LED light source light compensating apparatus, it is characterised in that: mended including bearing assembly and the fluorescent powder being sticked on bearing assembly Color pad pasting, bearing assembly are set to the light direction front position of LED light source, and LED light is at least completely covered in fluorescent powder complementary color pad pasting Entire output optical zone domain of the source on bearing assembly.

2. a kind of LED light source light compensating apparatus as described in claim 1, it is characterised in that: the illuminator of the LED light source is indigo plant Light chip illuminator, location interval is equipped with sapphire fluorophor immediately ahead of illuminator light direction, which is Sintered glass powder and fluorescent powder on sapphire, the fluorescent powder and glass powder sintering are formed in sapphire correspondence back to illuminator On the surface of side.

3. a kind of LED light source light compensating apparatus as claimed in claim 2, it is characterised in that: the fluorescent powder be red fluorescence powder, Any one of green emitting phosphor and yellow fluorescent powder or wantonly at least two color mixing.

4. a kind of LED light source light compensating apparatus as described in claim 1, it is characterised in that: the fluorescent powder complementary color pad pasting it is glimmering Light powder is any one of red fluorescence powder, green emitting phosphor and yellow fluorescent powder or wantonly at least two color mixing.

5. a kind of LED light source light compensating apparatus as described in claim 1, it is characterised in that: the bearing assembly includes in inside and outside The fly's-eye lens and reflector of arrangement；Reflector is located at LED light source periphery, and fly's-eye lens is being set to LED light source light direction just Front position, fluorescent powder complementary color pad pasting are sticked on the outer surface of fly's-eye lens.

6. a kind of LED light source light compensating apparatus as claimed in claim 5, it is characterised in that: the bearing assembly further includes shining line Cover plate, shines the front position that line cover plate is set to fly's-eye lens, and fluorescent powder complementary color pad pasting is set on the inner surface for shining line cover plate.