TWI571595B - Omni-directional led lamps - Google Patents

Description

Full-circumference LED tube

. The present invention relates to an LED tube; in particular, to a full-circumference LED tube. The light-transmissive ceramic particle material is filled between the inner tube wall of the lamp tube and the LED light source to reduce thermal resistance and avoid blue light leakage.

The full-circumference LED strips, commonly known as LED filaments, have gradually attracted attention from the market, but they have not been able to open the market in the past few years, mainly because the heat dissipation problem of LED filament lamps still has to be overcome, making prices and There is still a gap between performance and market expectations. First of all, in order to solve the problem of heat dissipation, the current LED filament lamp products on the market are mostly filled with glass bulbs to seal the heat. Compared with the thermal conductivity of ordinary air, helium gas can increase the thermal conductivity by more than 6 times. However, even if the LED filament lamp endures the high temperature of flame processing, the production process of abnormally low yield, in fact, the thermal conductivity of helium is only 0.159W/mK, so the current LED filament lamp products on the market are reduced by half. The driving current is insufficient to dissipate the heat of the glass bulb.

Generally, the transparent resin resin has a thermal conductivity of about 0.3 W/mK. Although the full-period LED strip can be directly filled with a transparent resin glue to expand the heat-emitting surface area of the LED strip, but the transparent resin. The yellowing of the glue discolors and affects the service life of the product. And the most adverse effects of resin glue chemistry incompatibility are blue light, deep blue light and The white LEDs that it derives should be designed to minimize the effects of chemicals, especially resin glue that is directly filled with LEDs. Even if it is necessary to use it as a last resort, choose a resin glue with good compatibility and high weather resistance, and also consider the manufacturing cost pressure caused by its expensive material cost.

In order to enhance the heat dissipation capability of the full-circumference LED strip, the transparent substrate is changed from glass to single-crystal alumina substrate with high price and good heat conductivity, which is called sapphire. In order to highlight the advantages of heat conduction of sapphire substrate, the original The phosphor powder layer coated on the entire periphery of the transparent substrate is also coated on the upper and lower sides of the sapphire substrate, and the left and right sides of the sapphire substrate are exposed to the outside to increase the heat dissipation capability, but for the white light illumination of the blue LED plus the phosphor layer, the derivative substrate The problem of blue light leakage on the left and right sides. In addition, the mechanical strength of sapphire is much better than that of glass, but the material price is expensive, so the thickness of the sapphire substrate is deliberately reduced. Therefore, the full-circumference LED strip of the sapphire substrate is particularly fragile and easy to break, in addition to resisting environmental factors, Oxidation and corrosion of sulfides, etc., with full-circumference LED strips of sapphire substrates, need to be assembled in a tube to meet practical applications. Therefore, how to reduce the thermal resistance between the tube wall and the LED light source and avoid the leakage of blue light is a problem that needs to be solved.

The thermal conductivity of common permeable medium; hot air is about 0.0136 W/m.K, helium is about 0.18 W/m.K, plastic is about 0.25 W/m.K, epoxy resin is about 0.3 W/m.K, tannin is about 0.5 W/m.K. In addition, the thermal conductivity of common ceramic media; general glass is about 1.1W/mK, quartz glass is about 1.5W/mK, single crystal alumina is 46W/mK, polycrystalline alumina is 28W/mK, zirconia is 1.8W/mK, and strontium carbide is 126W. /mK, tantalum nitride 27W/mK, boron carbide 40W/mK, boron nitride 30W/mK, aluminum nitride 160W/mK, and the like.

Ceramic refers to a metal or non-metal oxide, carbide or nitride, such as oxygen. Potassium, sodium oxide, strontium oxide, etc. Glass is a mixture of potassium oxide, sodium oxide, cerium oxide, etc., and therefore is also a type of ceramic material. The ceramic material is resistant to high temperature and high thermal conductivity, and has no adverse effect on the chemical incompatibility of the LED, especially the permeable ceramic material, which is beneficial to the application of LED light transmission and heat conduction.

Dry loose granular material, small friction between particles, good fluidity, under proper vibration, tightly filled in the gap between the inner wall of the tube and the light source of the light-emitting diode, dry loose granular material in the process , as the sand in the hourglass buryes the light-emitting diode light source, which is very important for the fragile full-circumference LED strip in the embodiment. First, the particle flow filling process does not cause mechanicality to the full-circumference LED strip. The surface is rubbed or damaged by pressure. The second is that the thermal expansion and contraction of the full-circumference LED strip is not limited by the coating of the particulate material and internal stress fatigue damage occurs.

The permeable ceramic particle material filled between the inner tube wall of the lamp tube and the LED light source has an inverse ratio of the porosity and the thermal conductivity, and the porosity is proportional to the size of the permeable ceramic particles, and is transparent. The size of the ceramic particles is proportional to the light transmittance, so although the particles are small, the porosity is small, and the heat conductivity is large, the light transmittance is small. Therefore, the size of the particles, the calculated diameter of the particles of the equivalent volume is greater than 0.05 mm, because the particles below 0.05 mm have poor light transmittance. Moreover, the porosity is large and the thermal conductivity is poor. Therefore, the permeable ceramic particle material filled between the inner tube wall of the lamp tube and the light-emitting diode light source has a porosity requirement of less than 50%.

Since the porosity is inversely proportional to the thermal conductivity, the porosity is proportional to the size of the permeable ceramic particles, and the size of the transparent ceramic particles is proportional to the transmittance. Thus, in a preferred embodiment, a particle size configuration that satisfies both light transmission and thermal conductivity is disclosed. In the embodiment, the glass beads of different sizes are used; the porosity of the individual vibration filling is respectively 0.05 mm bead diameter / 0.3 porosity, 0.1 mm bead diameter / 0.33 porosity, 0.6 mm bead diameter / 0.38 porosity, 2.0 mm bead diameter / 0.4 porosity. The porosity of the mixed vibration filling is: 0.27% by weight, 0.05 mm, +77.3%, 0.6 mm, 0.20.1, and 0.21, and the weight ratio is 17.8%, 0.1 mm, and 80.2%, 0.6 mm, and 0.24. Porosity. The weight ratio is 11.6% of 0.6 mm bead diameter + 88.4% of 2.0 mm bead diameter / 0.32 porosity. As can be seen from the above, the size-mixing filling is smaller than the porosity of the large or small filling alone, and retains the transmittance of most of the large particles.

The appearance shape of the granules affects the friction between the particles, and the frictional force has a small fluidity. The friction between the particles is proportional to the angle of repose. The angle of repose of the shape of the granules is 23~28° for spherical particles, 30° for regular particles, 35° for irregular particles, and 40° for extremely irregular particles. From the above, it can be seen that in one embodiment, the spherical particles are selected to have a smaller porosity at the calculated diameter of the same equivalent volume of particles. The permeable ceramic granule material is coated with the irregular surface contacting the illuminating diode strip, and the granule material has contact with the adjacent particles, and the porosity is small to reduce the thermal resistance and increase the heat conduction.

In addition, in the embodiment, the sapphire substrate is coated with the phosphor powder layer on the upper and lower sides of the cloth substrate, and the full-perimeter LED strips exposed on the left and right sides of the substrate can refract and diffuse the incident light by the transparent ceramic particle material. It can increase the color rendering index of the light and reduce the color temperature, while softening the light and avoiding blue light leakage.

The viscous force between the granules affects the friction. If there is a liquid mucus between the granules, the friction between the granules increases, the filling fluidity decreases, and the fluidity decreases. High pressure injection fill, which can cause mechanical surface friction and compression damage to fragile full-circumference LED strips. Moreover, this also affects the porosity of the permeable ceramic particles filled between the inner wall of the tube and the LED light source, and the presence of the liquid mucosa between the particles and the adjacent particles is not directly contacted, so that the porosity becomes larger and the thermal resistance increases. Therefore, before the light-transmissive ceramic particles are filled between the inner tube wall of the lamp tube and the LED light source, it is necessary to properly clean and dry the oil film.

Although a liquid having a refractive index close to that of the permeable ceramic particles and a colloid between the particles are added, the light transmittance between the particles can be increased, but the preferred method is still in the inner tube wall and the light emitting diode. Between the body light sources, after filling the permeable ceramic particle material having a porosity of less than 50% and contacting the particles with adjacent particles, the liquid or colloid having a similar refractive index is instilled. Of course, the adverse effects of the liquid and colloidal chemical incompatibility and the yellowing discoloration, which affect the service life of the product, become an increase.

A full-circumference LED tube having an opening at both ends, or a tube having an opening at one end. There is an LED light source inside the tube. The tube contains a transparent or color tube. The tube contains plastic, glass and ceramic tubes.

The LED light source has at least two electrical connection lines, which are respectively opened at both ends of the lamp tube or open together at one end of the lamp tube to lead out the lamp tube.

Both ends of the tube are open, or one end of the tube is open, and a plug closes the opening.

LED light source; in the embodiment there is at least one full-circumference LED strip. The full-circle LED strip has a plurality of LED chips, and the plurality of LED chips include blue and other colored LED chips.

The light-transmissive ceramic particle material is filled between the inner tube wall of the lamp tube and the light source of the light-emitting diode. The permeable ceramic particulate material has particles in contact with adjacent particles having a porosity of less than 50%. The permeable ceramic particulate material includes primary ceramic particles, caulking ceramic particles, and fragmented ceramic particles. can The calculated diameter of the equivalent volume particles of the transparent ceramic granule material is that the main ceramic particles are larger than 0.1 mm, the caulking ceramic particles are larger than 0.05 mm, less than 0.1 mm, and the permeable ceramic particles are less than 0.05 mm. The permeable ceramic granule material has a volume occupation ratio of more than 60% of the main ceramic particles, less than 40% of the caulked ceramic particles, and less than 20% of the pulverized ceramic particles. In the filling process of the main ceramic particles, the caulking ceramic particles and the fragmented ceramic particles of different sizes, the materials can be separated and continuously fed at a constant rate, and when the lamps are filled, the blades are rotated and mixed. The lamp can be vibrated during or after the filling of the transparent ceramic particles, and the vibration mode includes linear vibration and torsional vibration. The permeable ceramic particulate material has particles in contact with adjacent particles, including primary ceramic particles, caulked ceramic particles, and fragmented ceramic particles, the same or different size particles being in contact with adjacent particles. The permeable ceramic particulate material comprises transparent, colored particles. The permeable ceramic granule material has an appearance shape of particles, and includes regular, irregular permeable ceramic particles. The permeable ceramic particulate material is, in one embodiment, a single crystal alumina, polycrystalline alumina ceramic particle. The permeable ceramic particulate material is in one embodiment glass particles. The glass particles comprise quartz, sodium, calcium, potassium, lead, and boron glass particles.

10‧‧‧LED chip

11‧‧‧Line

12‧‧‧Sapphire substrate

14‧‧‧Fluorescent powder layer

16‧‧‧Blue light leakage

18‧‧‧LED light source

20‧‧‧Full-circumference LED strips with phosphor layer

22‧‧‧Lights with one end open

23‧‧‧ inner wall

24‧‧‧Electrical connection

26‧‧‧ 塞子

28‧‧‧Main ceramic particles

30‧‧‧Particles in contact with adjacent particles

31‧‧‧ lamps with open ends

32‧‧‧Filling ceramic granules

33‧‧‧Split ceramic particles

34‧‧‧Full-circumference LED strips, no phosphor layer

36‧‧‧ semi-circular cover

38‧‧‧solid semicircular bar

40‧‧‧ inner wall

42‧‧‧Solid surface

44‧‧‧ outer arc wall

46‧‧‧ outer wall

48‧‧‧Full-circumference LED strips with widened substrate, no crystal layer on the solid surface

50‧‧‧Ceramic substrate

52‧‧‧The outer surface of the substrate

54‧‧‧Solid surface

56‧‧‧Semicircular ditch cover

58‧‧‧ outer surface

60‧‧‧ inner wall

62‧‧‧ incident light

64‧‧‧ diffuse refracted light

66‧‧‧Diffuse light

Fig. 1 is an LED light source according to the first and second embodiments of the present invention; a full-circumference LED strip and a phosphor layer.

Fig. 2 is a view showing a first embodiment of the present invention.

Fig. 3 is an enlarged cross-sectional view showing a first embodiment of the present invention.

Figure 4 is a view showing a second embodiment of the present invention.

Fig. 5 is an enlarged cross-sectional view showing a second embodiment of the present invention.

Fig. 6 is a view showing an LED light source according to the third and fourth embodiments of the present invention; a full-circumference LED strip, and a phosphor-free powder layer.

Figure 7 is a view showing a third embodiment of the present invention.

Figure 8 is an enlarged cross-sectional view showing a third embodiment of the present invention.

Figure 9 is a view showing a fourth embodiment of the present invention.

Figure 10 is an enlarged cross-sectional view showing a fourth embodiment of the present invention.

11 is an LED light source according to a fifth embodiment of the present invention; a full-circumference LED strip of a widened substrate, and a phosphor-free layer on a solid crystal surface.

Figure 12 is a view showing a fifth embodiment of the present invention.

Figure 13 is an enlarged cross-sectional view showing a fifth embodiment of the present invention.

Figure 14 is a schematic diagram of the diffuse refraction of light by a permeable ceramic granule material

Fig. 1 is an LED light source according to the first and second embodiments of the present invention; a full-circumference LED strip and a phosphor layer. The full-circumference LED strip has a phosphor layer 20; the plurality of LED chips 10 are fixed on the upper and lower sides of the sapphire substrate 12, and the line 11 is printed. The plurality of LED chips 10 include blue and other colored LED chips. The phosphor layer 14 is coated on the upper and lower sides of the sapphire substrate 12, and the left and right sides of the sapphire substrate 12 are exposed to the outside to increase the heat dissipation capability. For the white light illumination of the blue LED plus the phosphor layer, the blue light leakage on the left and right sides of the substrate is 16 problem.

Fig. 2 is a view showing a first embodiment of the present invention. The lamp tube 22 having an opening at one end has a plug 26 to close the opening, and the lamp tube 22 having an open end has an LED light source 18, and the LED light source 18 has at least two electrical connection lines, which are opened at one end of the lamp tube to lead out the lamp tube. The bulb 22, which is open at one end, comprises a tube of plastic, glass, ceramic material, and the tube 22 that is open at one end contains a transparent or color tube. In the first embodiment, the LED light source 18 is composed of two series-connected full-perimeter LED strips and a phosphor powder layer 20. Between the inner tube wall 23 of the tube and the LED light source 18, the permeable ceramic particle material is filled. The permeable ceramic particulate material has particles in contact with adjacent particles 30 and a porosity of less than 50%. The permeable ceramic particulate material comprises primary ceramic particles 28, caulked ceramic particles 32, and fragmented ceramic particles 33. The main ceramic particles 28 serve as main ceramic particles which can reduce the thermal resistance, increase the conduction of heat, and have a diffuse refraction effect on light to soften the light and avoid blue light leakage, and have a positive effect. The caulked ceramic particles 32 serve as an aid in reducing porosity to help reduce thermal resistance and increase heat transfer, but the addition of caulked ceramic particles 32 reduces the permeable between the inner tube wall 23 and the LED source 18 that fills the tube. Light transmittance of the photoceramic granular material. The fragmented ceramic particles 33 are dust particles attached to the surface of the main ceramic particles 28, the caulking ceramic particles 32, and the like, and a portion of the fragmented ceramic particles 33 are filled between the inner tube wall 23 of the tube and the LED light source 18. The main ceramic particles 28, caulking ceramic particles 32, etc., after long-term lighting work thermal expansion and contraction or transport vibration shock, etc., causing the main ceramic particles 28, caulking ceramic particles 32, etc. to crack or weather into ceramic particles, The less the fine ceramic particles 33, the better, because the fine ceramic particles 33 are not conducive to light transmission. The calculated diameter of the equivalent volume particles of the light transmissive ceramic granular material is greater than 0.1 mm for the main ceramic particles 28, greater than 0.05 mm for the caulking ceramic particles 32, less than 0.1 mm, and less than 0.05 mm for the ceramic particles 33. The permeable ceramic particulate material has a volume fraction; the primary ceramic particles 28 are greater than 60%, the caulked ceramic particles 32 are less than 40%, and the fragmented ceramic particles 33 are less than 20%. During the filling process of the main ceramic particles 28, the caulking ceramic particles 32 and the fragmented ceramic particles 33 of different sizes, they can be separately and continuously fed at a ratio, and when filled into the bulb 22 which is open at one end, the blade is rotated and stirred. mixing. During the filling process of the permeable ceramic granule material and after the quantitative filling, the lamp 22 which is open at one end is vibrated, and the vibration mode includes linear vibration and torsional vibration. The permeable ceramic particulate material has particles in contact with adjacent particles 30, including primary ceramic particles 28, caulked ceramic particles 32, and fragmented ceramic particles 33, the same or different sized particles being in contact with adjacent particles. The contact of the particles of the permeable ceramic granule material with the adjacent particles 30 means that the loose permeable ceramic granule material falls between the inner tube wall 23 of the tube and the LED light source 18, and the coordinates of the particles and the particles are randomly distributed. Arranged, vibrated tightly to form a static particle support structure in which the particles in the structure support the contact with adjacent particles. The permeable ceramic particulate material comprises transparent, colored particles. The permeable ceramic granule material has an appearance shape of the particles, including regular, irregular permeable ceramic particles. Rules may be light-transmissive ceramic particles are spherical, bead type, etc. may be symmetrical cubic translucent ceramic particles, irregular particles may be light-transmitting ceramic sheet type, plate type, etc. may be asymmetric cubic translucent ceramic particles. The light transmissive ceramic particulate material comprises, in one embodiment, single crystal alumina, polycrystalline alumina ceramic particles. The permeable ceramic particulate material comprises, in one embodiment, glass particles. Glass particles include quartz, sodium, calcium, potassium, lead, and boron glass particles. Fig. 3 is an enlarged cross-sectional view showing a first embodiment of the present invention.

Figure 4 is a view showing a second embodiment of the present invention. The difference between the second embodiment and the first embodiment is the difference in the lamp pattern. In the second embodiment, the lamp tube 31 which is open at both ends has a plug 26 closed at both ends, and a light-emitting diode light source 18 is disposed in the lamp tube 31 which is open at both ends. The light-emitting diode light source 18 has two electrical connection lines 24, which are respectively opened at both ends of the lamp tube 31 which are open at both ends, and the light-emitting tubes 31 which are open at both ends are taken out. Fig. 5 is an enlarged cross-sectional view showing a second embodiment of the present invention.

Figure 6 is an LED light source according to the third and fourth embodiments of the present invention; Light bar, no phosphor layer. A full-circumference LED strip, a phosphor-free layer 34; a plurality of LED wafers 10 are solid-crystallized and lined 11 on one of the upper and lower sides of the sapphire substrate 12, and the plurality of LED chips 10 include blue and other colored LED chips. The sapphire substrate 12 does not cover the phosphor layer, and is exposed to the outside to the left and right to increase the heat dissipation capability. For the white illumination of the blue LED, a remote phosphor layer is formed on the inner or outer tube wall of the lamp.

Figure 7 is a view showing a third embodiment of the present invention. The difference between the third embodiment and the first embodiment is that the light-emitting diode light source 18 is composed of two series-connected full-perimeter LED strips and a phosphor-free powder layer 34. Since the sapphire substrate 12 is not covered with the phosphor powder layer, it is exposed to the top, bottom, left and right, and is in contact with the permeable ceramic particle material to increase the heat dissipation capability. In this embodiment, for the white light illumination of the blue light emitting diode, a remote phosphor powder layer is formed on the inner tube wall 23. Figure 8 is an enlarged cross-sectional view showing a third embodiment of the present invention.

Figure 9 is a view showing a fourth embodiment of the present invention. The difference between the fourth embodiment and the third embodiment is the difference in the style of the tube. In the present embodiment, the lamp tube that is open at one end is composed of a semi-arc cover 36 and a solid semi-circle 38. The full-circumference LED strip, the matte layer 34, the sapphire substrate 12 is attached to the solid surface 42 of the solid semi-circular rod 38, and the semi-circular cover 36 and the solid semi-circular rod 38 are made of glass and single crystal, polycrystalline oxide. Made of aluminum ceramic for heat conduction. In this embodiment, between the inner tube wall of the lamp tube and the light source of the light emitting diode, the permeable ceramic particle body material is filled; the inner tube wall of the lamp tube is composed of the inner wall 40 of the semicircular arc cover 36 and the solid semicircular rod. The solid crystal surface 42 of 38 is formed. In the present embodiment, for the white light illumination of the blue LED, a remote phosphor layer is formed on the outer arc wall 44 of the semicircular arc cover 36 and the outer circular wall 46 of the solid semicircular bar 38. Figure 10 is an enlarged cross-sectional view showing a fourth embodiment of the present invention.

11 is an LED light source according to a fifth embodiment of the present invention; a full-circumference LED strip of a widened substrate, and a phosphor-free layer on a solid crystal surface. Full-circumference LED strips with widened substrates, no solid surface The photo-powder layer 48; the plurality of LED wafers 10 are fixed on the crystal-fixed surface 54 of the ceramic substrate 50, and the wires 11 are bonded, and the phosphor crystal layer is free from the phosphor layer. The plurality of LED chips 10 include blue and other colored LED chips. The ceramic substrate 50 is made of glass and single crystal, polycrystalline alumina ceramics to facilitate heat conduction.

Figure 12 is a view showing a fifth embodiment of the present invention. The difference between the fifth embodiment and the first embodiment is different in the LED light source and the lamp pattern. The LED light source of this embodiment is a full-circumference LED strip of a widened substrate, and a non-fluorescent layer 48 of a solid crystal surface. The lamp tube which is open at one end is composed of a full-circumference LED strip of a widened substrate, a non-fluorescent powder layer 48 of a solid crystal surface, and a semi-circular groove cover 56. Between the inner tube wall of the lamp tube and the light source of the light emitting diode, the light-transmissive ceramic particle material is filled; the inner wall of the lamp tube is a full-circumference LED light strip with a widened substrate, and the solid crystal surface has no phosphor powder. The layer 48 is composed of a solid crystal surface 54 of the ceramic substrate 50 and an inner groove wall 60 of the semicircular groove cover 56. The ceramic substrate 50 and the semi-circular groove cover 56 are made of glass, single crystal, and polycrystalline alumina ceramic to facilitate heat conduction. For white light illumination of a blue LED, a remote phosphor layer is formed on the outer surface 58 of the semi-circular trench cover 56 and on the outer surface 52 of the substrate of the ceramic substrate 50. Figure 13 is an enlarged cross-sectional view showing a fifth embodiment of the present invention.

Figure 14 is a schematic diagram of the diffuse refraction of light by a permeable ceramic particle material. The incident light 62 enters the permeable ceramic particle material, partially penetrates into the diffuse refracting light 64, and partially reflects the diffuse reflected light 66. In the first and second embodiments, the full-circumference LED strip and the phosphor layer 20 are coated; the phosphor layer 14 is coated on the upper and lower sides of the sapphire substrate 12, and the left and right sides of the sapphire substrate 12 are exposed to the outside to increase the heat dissipation capability. The left and right sides of the blue light leak 16. The blue light leakage 16 enters the permeable ceramic particle material as the incident light 62, and partially penetrates into the diffuse refracting light 64 to change the light angle, and mixes with the white light to avoid blue light leakage, and partially reflects the diffused light 66. Blending light into the phosphor layer 14 can increase the color rendering index of the light and reduce the color temperature. In the third, fourth and fifth embodiments, the diffuse refraction of the light-transmitting ceramic particle material to light can soften the light and reduce the glare.

18‧‧‧LED light source

20‧‧‧Full-circumference LED strips with phosphor layer

22‧‧‧Lights with one end open

23‧‧‧ inner wall

24‧‧‧Electrical connection

26‧‧‧ 塞子

28‧‧‧Main ceramic particles

30‧‧‧Particles in contact with adjacent particles

32‧‧‧Filling ceramic granules

33‧‧‧Split ceramic particles

Claims (10)

The utility model relates to a full-circumference LED lamp tube, which has two ends open, or the lamp tube has one end opening, the lamp tube has an LED light source, and the LED light source has at least two electrical connection lines, respectively, by the lamp tube Opening at both ends, or opening together with one end of the tube, the lamp tube is taken out, the two ends of the tube are open, or one end of the tube is open, and a plug is closed, and the tube wall and the LED light source are The intercalated loose permeable ceramic granule material, the permeable ceramic granule material has particles in contact with adjacent particles, and the porosity is less than 50%, and the permeable ceramic granule material comprises main ceramic particles, caulking ceramic particles and fragmented ceramics. The calculated diameter of the particles of the opaque ceramic granule material is that the main ceramic particles are larger than 0.1 mm, the caulking ceramic particles are larger than 0.05 mm, less than 0.1 mm, and the fragmented ceramic particles are less than 0.05 mm, and the transparent ceramic particles are permeable. The bulk material has a volume fraction of more than 60% of the main ceramic particles, less than 40% of the caulked ceramic particles, and less than 20% of the fragmented ceramic particles. The full-circumference LED tube according to claim 1, wherein the LED light source has at least one full-circumference LED strip, the full-circumference LED strip has a plurality of LED chips, and the plurality of LED chips include blue light and other colors. Light LED chip. The full-circumference LED tube of claim 1, wherein the tube comprises a transparent or color tube. The full-circumference LED tube according to claim 1, wherein the tube material is a plastic material or a glass material or a ceramic material. The full-circumference LED tube according to claim 4, wherein the glass material of the tube is quartz glass or soda glass or calcium glass or potassium glass or lead glass or boron glass. The full-circumference LED tube according to claim 4, wherein the ceramic material of the tube is single crystal alumina or polycrystalline alumina. The full-circumference LED tube of claim 1, wherein the permeable ceramic particulate material comprises transparent or colored particles. The full-circumference LED tube according to claim 1, wherein the permeable ceramic particle material has an appearance shape of the particles, including regular or irregular particles. The full-circumference LED tube according to claim 1, wherein the permeable ceramic particle material is single crystal alumina or polycrystalline alumina particles. The full-circumference LED tube according to claim 1, wherein the permeable ceramic particle material is glass particles, and the glass particles are quartz glass particles or soda glass particles or calcium glass particles or potassium glass particles or lead. Glass particles or borosilicate particles or glass particles mixed with a plurality of materials.