CN212377785U - LED lamp tube - Google Patents

Abstract

An LED lamp tube comprises an LED strip with a substrate and a plurality of LED modules, wherein the LED strip is stored by a light-transmitting tube, the light-transmitting tube is provided with a first part and a second part, and the light transmission amount of the first part is larger than that of the second part. A first end cap is attached to the first end of the light-transmissive tube and a second end cap is attached to the second end of the light-transmissive tube, the first and second end caps each having two pins. The driver is enclosed in one end cap for providing a driving current to and controlling the plurality of LED modules.

Description

LED lamp tube

Technical Field

The utility model relates to an illumination lamps and lanterns, more specifically say, relate to a LED fluorescent tube.

Background

Fossil fuels are in limited supply, resulting in a great deal of research and engineering work in the area of alternative fuels and energy. Furthermore, air pollution from fossil fuel combustion is another area of concern. Many problems are related to many things we do. There is an area of particular interest in reducing the area of energy consumption for lighting. Fluorescent lamps have been the primary lighting fixture in offices, schools, and the like for many years. Fluorescent light bar fixtures are typically long rectangular fixtures that can be installed in a ceiling grid. The fluorescent light fixtures are typically surface mounted boxes, but may also be embedded in the ceiling grid. Fluorescent strip light fixtures were originally designed for standard fluorescent lamps, which have the advantages of wide acceptance, modularity, low cost and ease of installation and maintenance, making them useful with integrated led light sources.

Fluorescent lamps are a significant improvement over incandescent lamps, while high efficiency LED lighting is a new choice, and LED lighting technology is now rapidly replacing traditional incandescent and fluorescent lamps. Even in tube lighting applications, LED tubes are not filled with inert gas and mercury, as are fluorescent tubes, but do not contain mercury. Therefore, not surprisingly, LED tubes are becoming a very desirable lighting option in different lighting systems used in homes and workplaces, which in the past have primarily been comprised of traditional lighting options, such as compact fluorescent bulbs and fluorescent tube lamps. Advantages of LED tubes include improved durability and lifetime, and lower power consumption, and therefore, when all factors are considered, they can be considered cost-effective lighting options.

The use of LED lighting tubes in offices, schools, homes and the like is becoming more and more common. The LED lamp tube has different or multiple functional devices, and provides the illumination of angles and required objects for people. Thus, if we can design a product that meets the needs of human life and increases the life experience, the product may bring considerable value and contribution to society.

SUMMERY OF THE UTILITY MODEL

LED tubes are typically produced using a large number of low or medium power LEDs. By using a large number or low or medium power LEDs, the light output and heat conduction is balanced over the entire tube length. Compared with the traditional lighting technology, the working temperature of the LED lamp tube is lower, and the heat generated by the LED lamp tube is less than that of the traditional fluorescent lamp. The LED tube can be used for general purposes in all locations except those requiring up and down illumination. Including office light fixtures that hang from a ceiling and emit light upward and downward.

The LED lamp tube comprises an LED strip. The LED strip has a substrate and a plurality of LED modules on the substrate, the LED strip being stored by a light transmissive tube. The light-transmitting tube has a first portion and a second portion. The first portion passes more light than the second portion. The first end cap is connected to the first end of the light-transmissive tube and the second end cap is connected to the second end of the light-transmissive tube. The first end cap and the second end cap each have two pins. The driver is enclosed in one end cap for providing a driving current to and controlling the plurality of LED modules.

In one embodiment, the LED tube comprises a rotating ring. The rotating ring is arranged on the end cover of the light transmission pipe. The user can turn the rotating ring and when they turn the rotating ring, they can change the area ratio of the first portion to the second portion by the turning action. The first portion may allow more light to pass through, while the second portion allows less light to pass through.

In one embodiment, the LED tube has a rotating ring connected to the inflatable shield. The expandable shield moves with the rotating ring to change between the area ratio of the first portion and the second portion, and the inner side of the expandable shield has a reflective layer that can be formed on the shield to reflect light. The reflective layer may be formed of a highly reflective material. A highly reflective coating may be applied to the inside of the expandable shield and highly reflective strips may be stacked on the inside of the expandable shield to provide reflection. The expandable shield is made of a heat dissipating material.

In one embodiment, the LED tube has a rotating ring connected to the lens structure. The user turns the rotating ring to switch the relative position between the lens structure and the LED-strip. The lens structure has at least a first lens having a first beam angle and a second lens having a second beam angle. Most lenses are spherical lenses. The two surfaces are part of the surface of a sphere. Each surface may be convex (convex outward from the lens), concave (pressed into the lens), or planar (flat). The line connecting the centers of the spheres constituting the lens surface is called the lens axis. Typically, the lens axis passes through the physical center of the lens, depending on the manner in which the lens is manufactured. The lens may be cut or ground after manufacture to obtain different shapes or sizes. The lens axis may then not pass through the physical center of the lens.

In one embodiment, the LED tube has a rotating ring. The rotating ring can be switched to a relative position with respect to the first portion and the LED strip, the second portion and the LED strip. The rotating ring moves the LED strip to change the relative angle with the first end cap and the second end cap. The relative angles of the light cause the light to shine from one direction to more accurately illuminate the object.

In one embodiment, the LED tube causes a rotating ring to change one parameter of a driver to change a driving mode of the plurality of LED modules, the plurality of LED modules being divided into at least a first group and a second group that face different directions. The drive is selectively rotated to the first group or the second group according to the rotation angle of the rotating ring.

In one embodiment, the LED tube has a plurality of LED modules divided into at least a third group and a fourth group. The third plurality of LED modules is covered by a lens structure. The drive selectively opens the third group or the fourth group depending on the rotation angle of the rotating ring.

In one embodiment, the LED tube has a rotating ring connected to the color shield. The first part is a color protection cover which rotates along with the rotating ring when the rotating ring rotates. The color protection plate can provide a medium for changing the light color by switching the color protection plate. The colored shield may have multiple colors or may have more than one shield.

In one embodiment, an LED tube has a driver with a table for storing a plurality of settings for driving a plurality of LED modules. Each setting corresponding to a different color temperature optimized for illuminating a relevant type of object. The rotating ring is rotated to set the driver to select the respective settings for controlling the plurality of LED modules.

In one embodiment, an LED tube has a driver with a first driver circuit for switching an internal power supply to drive a plurality of LED modules and a second driver circuit for switching a ballast power supply generated by a ballast when the ballast receives the internal power supply. The rotating ring is switched to the first drive circuit or the second drive circuit for activation.

In one embodiment, the LED tube has a driver. The driver is a wireless module for receiving an external command from the remote controller. The driver controls the LED modules according to an external instruction, and the rotating angle of the rotating ring is provided with a data setting device used for converting data sent by the remote controller.

In one embodiment, the LED tube has a driver with a wireless module for receiving external commands from a remote control. The driver controls the plurality of LED modules according to an external command. The angle of rotation of the rotating ring is used to interpret external commands to the drive.

In one embodiment, the LED tube comprises a switch, and the moving part of the switch is exposed outside the first end cover and the second end cover. A switch connected to the base plate for a user to manually move the moving portion to change a distance between the base plate and an inner surface of the light-transmitting tube to change an area ratio between the first portion and the second portion.

In one embodiment, the LED tube has a first portion. The first section has a lens structure for condensing light into a beam of light and the second section has a diffuser layer for diffusing the light into the beam of light. The beam of light may be brought into focus with the object being illuminated. The diverging light provides a gentle light that illuminates the object or the area around the object.

In one embodiment, the area ratio between the first portion and the second portion is less than 1/3 for light to pass through. The transparency between the first portion and the second portion allows light to shine less than 120 degrees.

It should be noted that the following description of various embodiments of the present disclosure is described herein in order to clearly illustrate the inventive features of the present disclosure. However, it is not intended that the various embodiments be implemented solely, but rather it is contemplated that the various embodiments may be and are intended for use together in an end product, and may be combined in various ways to achieve various end products. Thus, one of ordinary skill in the art may combine possible embodiments together or replace components/modules between different embodiments as desired. The embodiments herein are not limited to the forms described in the following description, including any possible substitutions and arrangements between the various embodiments.

Drawings

Fig. 1 is a cross-sectional view of a light-transmitting tube having a first portion and a second portion according to the present invention. Fig. 2 is a perspective view of an LED tube according to an embodiment of the present invention.

Fig. 3 is a schematic diagram of an LED tube according to an embodiment of the present invention.

Fig. 4 shows a schematic diagram of an LED tube according to an embodiment of the present invention.

Fig. 5 is a cross-sectional perspective view of an LED tube according to an embodiment of the present invention.

Fig. 6 illustrates a block diagram of an exemplary driver in an LED tube according to some embodiments.

Fig. 7 is a side perspective view of an LED tube according to an embodiment of the present invention.

Fig. 8A is a cross-sectional view of an LED tube according to an embodiment of the present invention.

Fig. 8B is a cross-sectional view of an LED tube according to an embodiment of the present invention.

Figure 9A shows a schematic view of the connection of a rotating ring according to an embodiment of the present invention.

Figure 9B shows a schematic view of the connection of a rotating ring according to an embodiment of the present invention.

Fig. 10A is a schematic side view of an LED tube according to an embodiment of the present invention.

Fig. 10B is a cross-sectional view of an illumination angle according to an embodiment of the present invention.

Fig. 11A is a schematic side view of an LED tube according to an embodiment of the present invention.

Fig. 11B is a cross-sectional view of an illumination angle according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention may be described in conjunction with the preferred embodiments, it will be understood that they are not intended to limit the invention to these embodiments. On the contrary, the invention is intended to cover alternatives, modifications and equivalents, which may be included within the spirit and scope of the disclosure as defined by the appended claims.

Furthermore, in the following detailed description of the present disclosure, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure. However, it will be readily apparent to those skilled in the art that the present disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, components, structures, and circuits have not been described in detail as not to unnecessarily obscure aspects of the present invention.

In the drawings, the size and relative sizes of layers and regions may be exaggerated for clarity. Like numbers refer to like elements throughout. Although the various figures illustrate variations of the exemplary embodiments, these figures are not necessarily intended to be mutually exclusive. Rather, as the drawings and description thereof follow in the context of a detailed description, when taken together, certain features depicted and described in different drawings may be combined with other features from other drawings to produce various embodiments.

The embodiments described herein will be described with reference to plan and/or cross-sectional views through idealized schematic diagrams. Accordingly, the exemplary views may be modified according to manufacturing techniques and/or tolerances. Accordingly, the disclosed embodiments are not limited to the embodiments shown in the drawings, but include modifications in configurations formed based on manufacturing processes. Thus, the regions illustrated in the figures may have schematic shapes that may illustrate particular shapes of regions of elements to which aspects of the present invention are not limited.

Fig. 1 is a cross-sectional view of a light-transmitting tube having a first portion and a second portion according to the present invention. Referring to fig. 1, the LED tube includes an LED strip 101. The LED strip 101 has a substrate 102 and a plurality of LED modules 103 on the substrate 102. The LED strip 101 is stored through the tube 104. The light-transmitting tube 104 has a first portion 111 and a second portion 112. The first portion 111 passes more light than the second portion 112.

Fig. 2 is a perspective view of an LED tube according to an embodiment of the present invention, and referring to fig. 2, a first end cap 201 is connected to a first end 211 of a light-transmissive tube 266, and a second end cap 202 is connected to a second end 222 of the light-transmissive tube 266. The first end cap 201 and the second end cap 202 each have two pins 233. The driver 250 is packaged in one of the end caps for supplying a driving current to the plurality of LED modules 270, and controls the plurality of LED modules 270.

Fig. 3 is a schematic diagram of an LED lamp according to an embodiment of the present invention, and referring to fig. 3, the LED lamp includes a rotating ring 300. The rotating ring 300 is located on the end cap of the light-transmitting tube. The user can rotate the rotary ring 300, and when they rotate the rotary ring 300, they can change the area ratio 311 of the first portion to the second portion by the rotating action. The first portion may allow more light to pass through, while the second portion allows less light to pass through.

In one embodiment, the lamp conduit has the shape of an elongated cylinder, which is a straight structure. However, the light-transmitting tube may take any curved configuration, such as a ring or horseshoe. The cross-section of the lamp vessel usually defines a circle, rather than an ellipse or a polygon. Or the cross section of the lamp tube is irregular according to the shapes of the light-transmitting part and the reinforcing part and the way of connecting the two parts to form the lamp tube. The light-transmitting tube is a glass tube, a plastic tube, or a tube or combination of materials made of any other suitable material. In some embodiments, the plastic light tube is made of light transmissive plastic, thermally conductive plastic, or a combination of both. The light-transmitting plastic may be one of a translucent polymer matrix, such as polymethylmethacrylate, polycarbonate, polystyrene, poly (styrene-methyl methacrylate), and mixtures thereof. In some embodiments, the strength and elasticity of the thermally conductive plastic is enhanced by bonding the plastic matrix to the glass fibers. In one embodiment, the envelope of the lamp vessel comprises a plurality of layers made of different materials. For example, the light pipe may comprise a plastic pipe coaxially sheathed by a glass pipe.

Fig. 4 shows a schematic diagram of an LED tube according to an embodiment of the present invention.

Referring to fig. 3 and 4, the LED tube has a rotating ring connected to an expandable shield 322. The expandable shield 322 moves with the rotating ring 300 to vary between the area ratio 311 of the first portion and the second portion. The inner side of the expandable shield 322 has a reflective layer 401. A reflective layer 401 may be formed on the sacrificial shield 322 to reflect light. The reflective layer 401 may be formed of a highly reflective material. A highly reflective coating may be applied to the inside of the expandable shield 322 and highly reflective strips may be stacked to provide reflection on the inside of the expandable shield 322. The expandable shield 322 is made of a heat dissipating material.

Referring to fig. 4, the LED tube has a rotating ring 300 connected to a lens structure 402. The user turns the rotary ring 300 to switch the relative position between the lens structure and the LED bar. The lens structure 402 has at least a first lens 411 with a first beam angle and a second lens 422 with a second beam angle. Most lenses are spherical lenses. The two surfaces are part of the surface of a sphere. Each surface may be convex (convex outward from the lens), concave (pressed into the lens), or planar (flat). The line connecting the centers of the spheres constituting the lens surface is called the lens axis. Typically, the lens axis passes through the physical center of the lens, depending on the manner in which the lens is manufactured. The lens may be cut or ground after manufacture to obtain different shapes or sizes. The lens axis may then not pass through the physical center of the lens.

In one embodiment, the LED tube has a rotating ring. The rotating ring can be switched to a relative position with respect to the first portion and the LED strip, the second portion and the LED strip. The location of the optical tape within the light-transmitting tube is selected based on the overall factors desired (e.g., field angle, heat dissipation capability, and structural strength). The distance between the dome of the light bar and the light transmissive tube to the diameter of the light transmissive tube may be from zero twenty-five to zero nine. In some embodiments, the distance between the dome of the light bar and the light transmissive tube to the diameter of the light transmissive tube may be from zero thirty three to zero seventy five.

In one embodiment, the LED tube has a rotating ring that moves the LED strip to change the relative angle associated with the first end cap and the second end cap. The beam angle indicates the propagation of light from the light source. Narrow beams of light can give off concentrated light, which is better for accent lighting. A broad beam of light can give off more general, softer light.

Each light source from LED to simple candles has a beam angle. The beam angle is a measure of the light distribution. The light beams of GU-ten LEDs and embedded downlights are quite narrow, about 40 degrees, and anything within 5 degrees is an industry standard. The light beam angle for a candle or conventional light bulb is 360 degrees because the light shines all the way, but at a lower intensity. The brightness measured in lumens remained unchanged, but the beam intensity measured in candelas increased. The disadvantage of a wider beam angle is that it is less intense and the center of the beam may not go as far. A narrow beam angle of 25 degrees is called a spot. A wide beam angle of 60 degrees is referred to as a flood beam and even wider beams are referred to as broad beams. One of the best examples of using a wider beam of 60 degrees or the like in the lobby area. The restroom need not be as bright as other rooms, typically being illuminated to around 150 lux, as you are only performing basic tasks such as watching television or reading. In contrast, a kitchen may have only three hundred lux because you need to see clearly what you are doing. By using a wider beam angle, the light can space the downlight farther apart, rather than one meter apart, you can walk a distance of one or two meters or one or five meters.

Fig. 5 is a cross-sectional perspective view of an LED tube according to an embodiment of the present invention, and referring to fig. 5, a rotating ring of the LED tube changes parameters of a driver to change a driving mode of a plurality of LED modules 500. The plurality of LED modules 500 are divided into at least a first group 501 and a second group 502 facing in different directions. The drive is selectively turned to either the first set 501 or the second set 502 depending on the angle of rotation of the rotating ring.

Referring to fig. 5, the LED tube has a plurality of LED modules 500 divided into at least a third group 503 and a fourth group 504. A third group 503 of a plurality of LED modules 500 is covered by a lens structure. The drive selectively opens either the third set 503 or the fourth set 504 depending on the angle of rotation of the rotating ring.

Referring to fig. 4, the LED tube has a rotating ring 300 connected to a color shield 444. The color protection plate 444 covers the first portion. When the rotating ring 300 rotates, the color shield 444 rotates together with the rotating ring 300. Color mask 444 may provide a medium for changing the color of light by switching color mask 444. The color shield 444 may be of multiple colors and may have more than one color shield.

Fig. 6 illustrates a block diagram of an exemplary driver in an LED tube according to some embodiments. Referring to fig. 6, the LED tube has a driver 600. The driver 600 has a table for storing a plurality of settings for driving a plurality of LED modules. Each setting corresponding to a different color temperature optimized for illuminating a relevant type of object. The color of light can be quantified by its color temperature. The white light is measured in degrees kelvin (K). Most white light has a spectrum between 1800K and 6500K. When approaching 3000K, the light is significantly warmed. At the other end of the spectrum, the lamp has a blue and cooler hue when approaching 6500K. The rotating ring is used to set the driver to select the corresponding setting to control the plurality of LED modules.

Referring to fig. 6, the LED lamp has a driver 600, the driver 600 having a first driving circuit 610 for converting an internal power to drive a plurality of LED modules and a second driving circuit 620 for converting a ballast 603 power generated by a ballast 603 when the ballast 603 receives the internal power. The rotating ring switches to either the first drive circuit 610 or the second drive circuit 620 to activate.

Referring to fig. 6, the LED lamp has a driver 600. The actuator 600 has a wireless module 650 for receiving an external command of the remote controller. The driver 600 controls the plurality of LED modules according to an external command. The rotation angle of the rotating ring has a data setting device that converts data transmitted from the remote controller.

Referring to fig. 6, the LED lamp has a driver 600 having a wireless module 650 for receiving an external command of a remote controller. The driver 600 controls the plurality of LED modules according to an external command. The angle of rotation of the rotating ring is used to interpret external commands to the drive 600.

The ac power source is used to provide an ac power signal and may be an ac power line of a rated voltage (e.g., from to volts) and a rated frequency (e.g., 50 or 60 hertz). The optical drive circuit receives an ac power signal and then converts it into an ac drive signal as an external drive signal. The light driving circuit may be, for example, an electronic ballast for converting an ac power line to a high frequency, high voltage ac driving signal. Common electronic ballasts include an instant start ballast, a program start ballast or a quick start ballast, which may be suitable for an LED lamp. The voltage of the ac drive signal may be higher than volts, and in some embodiments ranges from volts to volts. The frequency of the ac drive signal may be higher than 10 khz. In some embodiments, the frequency of the ac drive signal may be in the range of 20k to 50k Hz. The LED lamp tube receives an external driving signal, so that light is driven to emit. In one embodiment, the external drive signal comprises an ac drive signal from the optical drive circuit. In one embodiment, the LED tube is in a driving environment, powered at an end cap thereof, the end cap having two conductive pins coupled to the light driving circuit to receive the AC driving signal. Two conductive pins and may be directly or indirectly electrically connected to the optical drive circuitry.

It is noted that the optical drive circuit may be omitted and is therefore depicted with dashed lines. In one embodiment, if the drive circuit is omitted, the ac power is directly connected to the pin, and then the pin receives the ac power signal as the external drive signal. In addition to the use with a single-ended power supply as described above, an LED tube lamp can be used with a double-ended power supply on each pin at both ends of the LED tube.

The power supply module of the LED lamp comprises a rectifying circuit and a filtering circuit, and can also comprise some components of the LED lamp module. The rectifying circuit is coupled to the pin and receives and rectifies the external driving signal, thereby outputting a rectified signal at an output terminal. The external drive signal may be an ac drive signal, or an ac power signal, or may even be a dc signal. The nature of the external drive signal does not affect other implementations of the LED lamp. A filter circuit is coupled to the first rectifying circuit for filtering the rectified signal to produce a filtered signal. For example, a filter circuit is coupled to the terminals and receives and filters the rectified signal to output a filtered signal at the output terminals. The LED lighting module is coupled with the filter circuit and receives the filtered light emitting signals. For example, the LED lighting module may be a circuit coupled to the terminal and receiving the filtered signal, thereby driving an LED light source (not shown) in the LED lighting module to emit light. Details of these operations are described in the following description of certain embodiments.

It is noted that although there are two output terminals and two output terminals in some embodiments, in practice, the number of ports or terminals for coupling between the rectifier circuit, the filter circuit, and the LED lighting module may be one or more, depending on the signal transmission between the circuits or devices.

Furthermore, the power supply module of the LED lamp and the embodiments of the power supply module of the LED lamp described below may each be used in an LED light tube, and may alternatively be used in any other type of LED lighting structure having two conductive pins for conducting power, such as an LED light bulb, a Personal Area Light (PAL), an LED lamp of a different base type of insert (e.g., PL-S, PL-D, PL-T, PL-L, etc.).

In one embodiment, an ac power source is used to provide an ac power signal. The optical drive circuit receives an ac power signal and then converts it to an ac drive signal. The LED lamp tube receives an AC driving signal from the optical driving circuit, so that light is driven to emit. In this embodiment, the LED tube has two pins and a power supply of the two pins at its two end caps, respectively, and the two pins are coupled to the light driving circuit to simultaneously receive the AC driving signal to drive the LED light source (not shown) in the LED tube to emit light. The ac power source may be an ac power line and the light driving circuit may be a ballast or an electronic ballast.

In one embodiment, the power supply module of the LED lamp includes a rectifier circuit, a filter circuit, and a rectifier circuit, and may also include some components of the LED lamp module. The rectifying circuit is coupled with the pin and receives and corrects the external driving signal conducted by the pin. The rectifying circuit is coupled with the pin and receives and rectifies the external driving signal conducted by the pin. Thus, the power supply module of the LED lamp may comprise two rectifying circuits and be configured to output a rectified signal at the output terminals. A filter circuit is coupled to the terminals and receives and filters the rectified signal to produce a filtered signal at the output terminals. The LED lighting module is coupled to the terminals and receives the filtered signal, thereby driving an LED light source (not shown) in the LED lighting module to emit light.

The power supply module of the LED lamp of one embodiment can be used in an LED lamp tube with a double-end power supply. It should be noted that, since the power supply module of the LED lamp includes the rectifier circuit, the power supply module of the LED lamp can be used in an LED lamp tube with a single-ended power supply to receive an external driving signal (e.g., the above-mentioned ac power supply signal or ac driving signal). The power supply module of the LED lamp in this embodiment and this embodiment can also be used together with the DC driving signal.

Referring to fig. 7, the LED tube includes a switch 701, a moving portion 702 of which is exposed outside the first and second caps. The switch 701 is connected to the base plate for the user to manually move the moving portion 702 to change the distance between the base plate and the inner surface of the light-transmitting tube for changing the area ratio between the first portion and the second portion.

Referring to fig. 8A and 8B, the LED tube has a first port 801. The first portion 801 has a lens structure 811 for condensing light into a beam. The second portion 802 has a diffusion layer 822 for diffusing light into diverging light. The beam may focus on the object illuminated by the light. The diverging light provides a gentle light that illuminates the object or the area around the object. The area ratio between the first portion 801 and the second portion 802 is less than 1/3 for the passage of light. The transparency between the first portion 801 and the second portion 802 allows light to shine less than 120 degrees.

Figure 9A illustrates a schematic diagram of a rotating ring connection in accordance with an embodiment of the present invention. Figure 9B illustrates a schematic diagram of a rotating ring connection in accordance with an embodiment of the present invention.

Referring to fig. 9A and 9B, the rotating ring can be attached to the lamp tube in several ways. The swivel ring can be connected to different functional devices for the user to select the function they desire and then connect the swivel ring to the lamp already in their possession. The rotating ring may also be movable for connection to the lamp vessel, but may also be replaced by another rotating ring. The connection between the rotating ring and the lamp vessel may be a magnetic part 901. The connection between the rotating rings may also be a protrusion 902, which may be mounted in a recess portion of the end of the lamp vessel.

Fig. 10A is a schematic side view of an LED tube according to an embodiment of the present invention. Fig. 10B is a cross-sectional view of an illumination angle according to an embodiment of the present invention. Fig. 11A is a schematic side view of an LED tube according to an embodiment of the present invention. Fig. 11B is a cross-sectional view of an illumination angle according to an embodiment of the present invention.

Referring to fig. 10A, 10B, 11A, and 11B, a user may rotate a rotary ring 1000, which is connected to an LED strip to change the arrangement and direction of the LED strip to obtain a suitable illumination angle, to control the illumination angle of light. When the rotating ring 1000 is turned in one direction, the first illumination pattern 1001 is directed to illuminate the other side of the LED strip. When the user rotates the rotating ring 1000, the LED strip may rotate in the same direction as the rotating ring 1000. The LED bars change to a second illumination mode 1101 illuminating another direction than the first illumination mode, in one embodiment the spin ring may be rotated 10 degrees, the LED bars are rotated 10 degrees in the same direction as the spin ring to illuminate the object. The rotating ring may be rotated 50 degrees and the LED is rotated 50 degrees in the same direction as the rotating ring to illuminate the object.

In one embodiment, there are a wide variety of products in the store, and different types of products may have different lighting patterns to make the products look better. The rotating ring may be fitted with a tracking module to track which product the tube is on to identify the color of light that the light must provide. The installed tracking module can also track the movement of the person. When a person is under the lamp tube and no person is under the lamp tube, the tracking module sends a signal to the lamp tube to brighten the area, and the tracking module sends a signal to the lamp tube to keep the lamp tube bright so as to save electric energy.

The foregoing description, for purpose of explanation, has been described with reference to specific embodiments. However, the illustrative discussions above are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching.

The embodiments were chosen and described in order to best explain the principles of the technologies and their practical applications. Consequently, those skilled in the art are able to best utilize the technology and various embodiments with various modifications as are suited to the particular use contemplated.

Although the present invention and examples have been fully described with reference to the accompanying drawings, it is to be noted that various changes and modifications will become apparent to those skilled in the art. Such variations and modifications are to be understood as being included within the scope of the disclosure and examples as defined by the following claims.

Claims (20)

1. An LED lamp tube is characterized by comprising:

an LED strip having a substrate and a plurality of LED modules on the substrate;

a light-transmissive tube for storing a LED bar, the tube having a first portion and a second portion, the first portion having more light transmission than the second portion;

a first end cap connected to a first end of the light-transmissive tube, and a second end cap connected to a second end of the light-transmissive tube, the first end cap and the second end cap each having two pins;

and a driver, enclosed in one end cap, for providing a driving current to the plurality of modules and controlling the plurality of LED modules.

2. The LED tube of claim 1, further comprising a rotatable ring manually rotatable by a user for changing the area ratio of the first portion to the second portion.

3. The LED tube of claim 2, further comprising an inflatable enclosure, the swivel ring being connected to the inflatable enclosure, the inflatable enclosure moving with the swivel ring to change the area ratio of the first portion and the second portion.

4. The LED tube of claim 3, wherein the inside of the inflatable enclosure has a reflective layer.

5. The LED tube of claim 3, wherein the expandable cap is made of a heat dissipating material.

6. The LED tube of claim 2, further comprising a lens structure, the swivel ring being connected to the lens structure for moving the relative position between the lens structure and the LED strip.

7. The LED tube of claim 6, wherein the lens structure has a first lens with a first beam angle and a second lens with a second beam angle.

8. The LED tube of claim 2, wherein the rotating ring changes the position of the first and second portions relative to the LED strip.

9. The LED tube of claim 2, wherein the rotation ring moves the LED strip to change the relative angle of the first and second endcaps with respect to the LED strip.

10. The LED tube of claim 2, wherein the rotating ring changes parameters of the driver to change the driving pattern of the plurality of LED modules.

11. The LED tube of claim 10, wherein the plurality of LED modules are divided into at least a first group and a second group that face different directions, the driver selectively turning to the first group or the second group depending on a rotation angle of the rotating ring.

12. The LED tube of claim 10, wherein the plurality of LED modules are grouped into at least a third group and a fourth group, the third group of the plurality of LED modules being covered by a lens structure, the driver selectively opening the third or fourth group depending on the angle of rotation of the swivel ring.

13. The LED tube of claim 2, wherein the rotating ring is connected to the color mask on the first portion and rotates when the rotating ring rotates.

14. The LED tube of claim 2, wherein the driver has a table storing a plurality of settings for driving the plurality of LED modules, each setting corresponding to a different color temperature optimized for illuminating an object of the relevant type, the rotating ring being rotated to set the driver to select the respective setting for controlling the plurality of LED modules.

15. The LED tube of claim 2, wherein the driver has a first driver circuit for switching the internal power to drive the plurality of LED modules and a second driver circuit for switching ballast power generated by the ballast when the ballast receives the internal power, the swivel ring switching to the first driver circuit or the second driver circuit for activation.

16. The LED tube of claim 2, wherein the driver has a wireless module for receiving an external command from the remote controller, the driver controls the plurality of LED modules according to the external command, and the rotation angle of the rotating ring has a data setting means for converting data transmitted from the remote controller.

17. The LED tube of claim 2, wherein the driver has a wireless module for receiving an external command from a remote controller, the driver controls the plurality of LED modules according to the external command, and the rotation angle of the rotating ring is used to interpret the external command to the driver.

18. The LED tube of claim 1, further comprising a switch, a moving portion of said switch exposed outside of said first and second end caps, said switch connected to the base plate for a user to manually move said moving portion to change an area ratio between the first and second portions of the distance between the base plate and the inner surface of said light-transmissive tube for changing.

19. The LED tube of claim 1, wherein the first portion has a lens structure for condensing light into a beam of light and the second portion has a diffuser layer for diffusing light into diverging light.

20. The LED tube of claim 1, wherein the area ratio between the first portion and the second portion is less than 1/3 of the area ratio through which light passes.

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