LED lamp tube with high condensation rate
By adopting a mirrorless internal rack structure of the light guide shield designed in LED lamps, the problem that light cannot be efficiently gathered by traditional lamps is solved, and the effects of high light concentration and soft light are achieved, which improves the light efficiency and life of the lamp.
Patent Information
- Application Number
- CN202422641003.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Traditional LED light tubes use reflective mirrors to prevent light from gathering efficiently, light utilization is low and light is not soft.
The mirrorless design is adopted, and the rack structure on the inner surface of the light guide cover is used to gradually concentrate light into the center in the light guide cover. The light condensation and light softness are increased through the diffuse reflection and refraction of the rack. The light guide cover is made of PC material to improve light transmittance.
It improves the light concentration and utilization rate, and the light is softer and even, eliminating the traditional reflective mirror surface, and improving the light efficiency and service life of the lamp.
Smart Images
Figure CN223121255U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of lighting, and particularly relates to an LED lamp tube with a high light concentration ratio. Background Art
[0002] The LED lamp tube is also commonly known as the LED light tube, the LED daylight lamp tube, and the LED fluorescent lamp, and its light source uses an LED as a light-emitting body. The traditional daylight lamp tube is also called a fluorescent lamp. There is a filament at each end of the lamp tube. The lamp tube is filled with a small amount of argon and thin mercury vapor. The inner wall of the lamp tube is coated with phosphor. When the gas between the two filaments conducts electricity, ultraviolet rays are emitted, causing the phosphor to emit visible light. Since it contains the heavy metal pollutant "mercury", the scrapped fluorescent lamp tube pollutes the environment very seriously. The LED lamp tube uses a light-emitting diode as a light source, has higher light efficiency, is more energy-saving, has a longer service life, and is more environmentally friendly. It has become the most ideal product to replace the fluorescent lamp tube at present. The LED lamp tube has the same outer dimension diameter as the traditional fluorescent lamp, including T5 lamp tubes, T8 lamp tubes, and T10 lamp tubes, and the lengths are 0.6m, 0.9m, 1.2m, 1.5m, 1.8m, and 2.4m.
[0003] The installation of the LED lamp tube is very simple. During installation, the original fluorescent lamp is removed and replaced with an LED lamp tube, and the ballast and starter are removed, so that the 220V AC mains can be directly applied to both ends of the LED lamp tube. The traditional LED lamp tube is generally installed under a lampshade with a reflector on both sides, and the reflective surface of the lampshade reflects the light on both sides. Content of the Utility Model
[0004] In view of this, the utility model provides an LED lamp tube with a high light concentration ratio, which omits the traditional lampshade with a reflector, makes the second refracted light converge towards the center, improves the light concentration ratio and the light utilization rate, and makes the light softer.
[0005] On the one hand, the utility model provides an LED lamp tube with a high light concentration ratio, which includes a light guide cover and a base. The light guide cover is installed on the base, and the light guide cover and the base form a cylindrical lamp tube. An LED lamp board is installed in the base. The outer surface of the light guide cover is the light-emitting surface. A rack is arranged on the inner surface of the light guide cover. The rack is symmetrically arranged relative to the center line A of the light guide cover. The top angle R1 of the rack faces the center O of the light guide cover, and the top angle R1 of the rack is 60 degrees. The angular bisector B of the top angle R1 of the rack passes through the center O of the light guide cover. The LED lamp board is located below the center O of the light guide cover. The front surface and the back surface of the rack are both flat surfaces. The incident angle of the incident light and the refraction angle of the second refracted light gradually decrease from the center line A of the light guide cover to both sides.
[0006] In order to further improve the softness of the light, in a further technical solution, the width and depth of the rack gradually increase from the center line A of the light guide cover to both sides, and the bottom angle R2 of the rack gradually decreases from the center line A of the light guide cover to both sides.
[0007] In a further technical solution, an LDE lamp bead is installed on the LED lamp board, and the axis of the LED lamp bead coincides with the center line A of the light guide cover.
[0008] In order to improve the light output ratio, in a further technical solution, the light guide cover is made of PC material, and the light transmittance of the light guide cover is 88%-95%.
[0009] The beneficial effects of a high light concentration ratio LED lamp tube of the present utility model are as follows: Since the top angle of the rack faces the center O of the light guide cover, the top angle R1 of the rack is 60 degrees, and the angular bisector B of the top angle of the rack passes through the center O of the light guide cover, the incident angle of the incident light and the refraction angle of the second refracted light gradually decrease from the center line A of the light guide cover to both sides, and the second refracted light converges towards the center, improving the light concentration ratio and the light utilization rate, and eliminating the traditional lamp shade with a reflective mirror surface. Since part of the light will generate diffuse reflection and refraction when irradiating the front and back surfaces of the rack, and is evenly diffused in the light guide cover, the light becomes softer. Since the width and depth of the rack gradually increase from the center line A of the light guide cover to both sides, and the bottom angle R2 of the rack gradually decreases from the center line A of the light guide cover to both sides, the light guide cover is further evenly diffused, the light is softer, and the illuminance of the light emitting surface is uniform. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] The drawings forming a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:
[0011] Figure 1 It is a schematic diagram of a high light concentration ratio LED lamp tube of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0012] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other. The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments. The above, greater than, and less than described in the present utility model all include the present number.
[0013] As Figure 1 shown, the present utility model preferably provides a high light concentration ratio LED lamp tube, which includes a light guide cover 1 and a base 2. The light guide cover 1 is installed on the base 2, and the light guide cover 1 and the base 2 form a cylindrical lamp tube. An LED lamp board 3 is installed in the base 2. The light guide cover 1 is made of PC material, and the light transmittance of the light guide cover 1 is 88%-95%. The LED lamp board 3 is located below the center O of the light guide cover. An LDE lamp bead is installed on the LED lamp board 3, and the axis of the LED lamp bead coincides with the center line A of the light guide cover.
[0014] The outer surface of the light guide cover 1 is the light-emitting surface 11. A rack 10 is provided on the inner surface of the light guide cover 1. The rack 10 is symmetrically arranged relative to the center line A of the light guide cover. The rack apex angle R1 faces the center O of the light guide cover, and the rack apex angle R1 is 60 degrees. The angular bisector B of the rack apex angle R1 passes through the center O of the light guide cover. Both the front surface 12 and the back surface 13 of the rack 10 are flat surfaces, so that the incident angle of the incident light 14 and the refraction angle of the second refracted light 16 gradually decrease from the center line A of the light guide cover to both sides. The second refracted light 16 converges towards the center, improving the light concentration rate and light utilization rate, and eliminating the traditional lamp cover with a reflective mirror surface. The width and depth of the rack 10 gradually increase from the center line A of the light guide cover to both sides, and the rack base angle R2 gradually decreases from the center line A of the light guide cover to both sides. Further, the light guide cover 1 is evenly diffused, the light is softer, and the illuminance of the light-emitting surface 11 is uniform.
[0015] Part of the incident light 14 emitted by the LED lamp bead is refracted by the front surface 12 to form the first refracted light 15. The first refracted light 15 is refracted by the light-emitting surface 11 to form the second refracted light 16. The incident angle is the angle between the incident light 14 and the normal line of the front surface 12, and the refraction angle of the second refracted light 16 is the angle between the second refracted light 16 and the normal line of the light-emitting surface 11. The present invention utilizes the principle of a triangular prism, so that the incident angle of the incident light 14 and the refraction angle of the second refracted light 16 gradually decrease from the center line A of the light guide cover to both sides. The second refracted light 16 converges towards the center, improving the light concentration rate and light utilization rate, and eliminating the traditional lamp cover with a reflective mirror surface.
[0016] Another part of the incident light 14 emitted by the LED lamp bead is reflected by the front surface 12 and enters the back surface 13, where it is reflected and refracted again, and is evenly diffused in the light guide cover 1, making the light softer. Since the width and depth of the rack 10 gradually increase from the center line A of the light guide cover to both sides, and the rack base angle R2 gradually decreases from the center line A of the light guide cover to both sides. Further, the light guide cover 1 is evenly diffused, the light is softer, and the illuminance of the light-emitting surface 11 is uniform.
[0017] The technologies not described above are common general knowledge in the art. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. An LED lamp tube with a high light concentration ratio, comprising a light guide cover (1) and a base (2). The light guide cover (1) is installed on the base (2), and the light guide cover (1) and the base (2) form a cylindrical lamp tube. An LED lamp board (3) is installed in the base (2), and it is characterized in that, The outer surface of the light guide cover (1) is the light-emitting surface (11). A rack (10) is provided on the inner surface of the light guide cover (1). The racks (10) are symmetrically arranged relative to the center line A of the light guide cover. The rack apex angle R1 faces the center O of the light guide cover. The rack apex angle R1 is 60 degrees. The angular bisector B of the rack apex angle R1 passes through the center O of the light guide cover. The LED lamp board is located below the center O of the light guide cover; both the front surface (12) and the back surface (13) of the rack (10) are flat surfaces. The incident angle of the incident light (14) and the refraction angle of the second refracted light (16) gradually decrease from the center line A of the light guide cover to both sides.
2. The high light concentration LED lamp tube according to claim 1, characterized in that, The width and depth of the rack (10) gradually increase from the center line A of the light guide cover to both sides. The rack base angle R2 gradually decreases from the center line A of the light guide cover to both sides.
3. The high light concentration LED lamp tube according to claim 2, characterized in that, LDE lamp beads are installed on the LED lamp board (3). The axis of the LED lamp beads coincides with the center line A of the light guide cover.
4. The high light concentration LED lamp tube according to claim 3, characterized in that, The light guide cover (1) is made of PC material. The light transmittance of the light guide cover (1) is 88%-95%.