JP3215504U - Lamp device - Google Patents

Abstract

The present invention provides a lamp device that can compensate for light emitted from a lamp source and obtain a clear illumination field, and at the same time avoid light emitted from a dazzling light source that affects traffic safety. The lamp device includes an LED unit (32), and the LED unit includes a base (301), a protrusion (302), a first LED main body (303), and a second LED main body (304). The base has a central axis and an axis. The protrusion is disposed asymmetrically on the base with respect to the central axis, and has a first surface 3021, a second surface 3022, and an eccentric axis that is eccentric with respect to the central axis. The first LED body is disposed on the first surface and arranged based on a first predetermined reference line. The second LED body is disposed on the second surface and arranged based on a second predetermined reference line, the eccentric axis passes through the first LED body, and the central axis passes through the second LED body. There is a specific distance D1 between the shaft center and the eccentric position, and the specific distance is 1 mm to 5 mm. [Selection] Figure 3 (b)

Description

Cross-reference of related application and priority claim

The present invention claims benefits based on utility model application No. 106202526 filed on February 21, 2017 at the Taiwan Intellectual Property Office, the disclosure of which is incorporated herein by reference. .

Technical field to which the device belongs

  The present invention relates to a lamp device, and more particularly to a lamp device having an LED provided at an eccentric position that is eccentric with respect to a central axis.

Conventional technology

  In lighting devices, gas discharge (high intensity discharge, HID) lamps provide another option in addition to halogen lamps. Especially in the automotive market, depending on the required projection distance and brightness of the lamp when the car is running, HID lamps have superior brightness, efficiency and usable life over halogen lamps. Further, since the halogen lamp has a color temperature of about 3200K and the HID lamp has a color temperature of about 4200K close to the sun, a bright and clear lighting effect can be obtained.

  LED lamps emit light close to sunlight, have higher energy conversion efficiency, and people feel a very comfortable vision. In recent years, tungsten lamps, halogen lamps, HID lamps, etc. have gradually become LED lamps. Has been replaced. According to research, 5500K is a useful color temperature for the eyes, and the 6500K color temperature of the LED lamp is closer to sunlight than the 4200K xenon lamp. Yes. Also, LED lamps have many advantages, such as half the power consumption of HID lamps, twice the brightness of HID lamps, and 10 times the usable life of HID lamps. Furthermore, LED lamps are superior to other types of lighting because they are less expensive than HID lamps, are less likely to waste power with less heat dissipation, and have a shorter lighting time with a starting voltage.

  The document of China Utility Model Notification CN203177004 discloses LED automobile headlights. FIG. 1 is a schematic view showing a conventional LED lamp base 10. The LED lamp base 10 includes a base 101, a protrusion 102, and an LED main body 103. The base 101 has a central axis 100, the protrusion 102 has a semi-cylindrical structure, the LED body 103 is disposed on a plane of the semi-cylindrical structure, and is hemispherical; The central axis 100 passes through the bottom surface 1031 of the LED main body 103. The LED body 103 is compared with a conventional H3 lamp core, and the central axis 100 passes through the center (not shown) of the H3 lamp core instead of the bottom surface 1031. Therefore, the focal point of the emitted light formed by the LED main body 103 is different from the focal point of the emitted light formed by the H3 lamp core, and may cause the divergence of the focal point of the emitted light.

  The document of the Chinese utility model registration M465518 discloses lighting the vehicle in the daytime. FIG. 2 is a schematic diagram showing daytime lighting 20 of a conventional LED vehicle. The daytime lighting 20 of the LED vehicle includes a mirror base through which light formed by the reflecting surface 202 is transmitted. A light source positioning unit 201 is provided below the reflecting surface 202, and the light source positioning unit 201 includes at least one light source positioning unit 201. Two LED light sources 203 may be provided. The reflection surface 202 is a curved surface designed by an asymmetric curved surface design equation for adjusting the luminous flux of the LED light source 203. In FIG. 2, the central axis z passes through the center of the LED light source 203, but the adjustment of the light beam emitted from the LED light source 203 is achieved by using an asymmetric reflecting surface 202.

  The mechanism of current automotive lamps is usually the same as that of HID lamps. For example, reflectors for focusing automotive fog lamps are designed by combining output light irradiation areas and standard H3 bulbs according to demand. Is done. For example, the irradiation area of the output light is made low so as not to irritate the eyes of the driver of the oncoming vehicle and affect the traffic safety. In particular, when the halogen bulb of the halogen lamp or the HID bulb of the HID lamp is upgraded to an LED bulb, the lamp base of the LED bulb and the mechanism of the halogen lamp or the HID lamp are not necessarily compatible. For example, the shape of the reflector of the automotive lamp is different from the shape of the back shell. Therefore, when replacing with an LED bulb, the mechanism of the halogen lamp or HID lamp needs to restart the mold according to the size of the lamp base of the LED bulb, and the size of the lamp base of the LED bulb is halogen lamp or HID The lamp mechanism cannot be flexibly and adaptively filled. If the mechanism of the HID lamp is not changed, replacing it with an LED bulb will change the focus and light intensity of the output light, changing the area of the output light and failing to meet the requirements.

  In view of this, the present inventors endeavored to research and develop, and when the conventional halogen lamp or HID lamp mechanism is used, if the LED unit is replaced, the irradiation area, focus and light of the light output from the H3 bulb A lamp device that can respond to the intensity (brightness) and can achieve better effects than the H3 bulb is desired. According to the lamp device of the present invention, the lamp source is projected at an eccentric position that is decentered with respect to the central axis, so that the emitted light of the lamp source can be compensated and a brighter field of view can be obtained. . At the same time, the light emitted from the light source that is too dazzling can be avoided so as not to affect traffic safety. Alternatively, the illuminated area is designed to meet demand.

  In order to achieve the above object, the present invention proposes a lamp device. The lamp device includes an LED unit, and the LED unit is disposed asymmetrically on the base with respect to the central axis, a first surface, a second surface, and a base having a central axis and an axial center. A protrusion having an eccentric axis that is eccentric with respect to the central axis; a first LED body that is disposed on the first surface and is arranged based on a first predetermined reference line; A second LED body arranged on the basis of a second predetermined reference line, wherein the eccentric axis passes through the first LED body, and the central axis extends through the second LED body. There is a specific distance between the axis and the eccentric position, and the specific distance is between 1 mm and 5 mm.

  In order to achieve the above object, the present invention proposes a lamp device. The lamp device includes a LED unit, and the LED unit includes a base having a reference axis and an axis, and a protrusion that is asymmetrically disposed on the base with respect to the reference axis. A first LED main body disposed on the projecting portion, and a projection position on the base of the first LED main body is an eccentric position that is eccentric with respect to the reference axis, and the axial center There is a specific distance between the eccentric position, and the specific distance is 1 mm to 5 mm.

  In order to achieve the above object, the present invention proposes a lamp device. The lamp device includes a LED unit, and the LED unit includes a base having a central axis and an axis, and a first LED lamp core provided on the base, The projection position of the LED lamp core on the base is an eccentric position of an eccentricity that is eccentric with respect to the central axis, and there is a specific distance between the axial center and the eccentric position. The distance is from 1 mm to 5 mm.

  In order to achieve the above object, the present invention proposes a lamp device. The lamp device includes a base having a center axis and an axis, and an eccentric shaft that is asymmetrically disposed on the base with respect to the center axis and is eccentric with respect to the first surface, the second surface, and the center axis. The protrusion further includes an LED main body disposed on the first surface, and a heat dissipation structure disposed on the second surface, and the eccentric shaft includes the protrusion Passing through the heat dissipation structure, the central axis passes through the LED body, and there is a specific distance between the axis and the eccentric position, and the specific distance is 1 mm to 5 mm.

  In order to achieve the above object, the present invention proposes a lamp device. The lamp device further includes a base having a first central axis, a second central axis, and a protrusion having a third central axis, and the second central axis overlaps the first central axis. The lamp device is characterized in that there is an offset between the third central axis and the second central axis, and the offset is 1 mm to 5 mm.

The schematic diagram which shows the conventional LED lamp base. The schematic diagram which shows the daytime lighting of the conventional vehicle. The schematic diagram which shows the lamp device 30 which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device 30 which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device 30 which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device 30 which concerns on preferable embodiment of this invention. The schematic diagram which shows the irradiation area and brightness of the emitted light of the conventional HID lamp. The schematic diagram which shows the irradiation area and brightness of the emitted light of the LED lamp apparatus which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on other preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on other preferable embodiment of this invention. The schematic diagram which shows the lamp device which concerns on other preferable embodiment of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing an outgoing optical path with an eccentric axis according to a preferred embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic diagram showing an outgoing optical path with a declination axis according to a preferred embodiment of the present invention. FIG. 3 is a schematic diagram showing an outgoing light field having a lower axis according to a preferred embodiment of the present invention. The side view which shows the lamp device which concerns on other preferable embodiment of this invention. The schematic diagram which shows that the protrusion part which concerns on preferable embodiment of this invention offsets upwards. The schematic diagram which shows that the protrusion part which concerns on preferable embodiment of this invention offsets upwards. The support object and heat sink which concern on preferable embodiment of this invention are the schematic diagrams which show connecting with a protrusion part. The schematic diagram which shows the lamp device 70 which concerns on other preferable embodiment of this invention.

Embodiment of invention

  As described below, the present invention will be described in detail based on examples. However, the present invention is merely an example, and the scope of the present invention is not limited to these embodiments. The scope of the present invention is described in the claims for utility model registration, and further includes all modifications within the meaning and scope equivalent to the description of the claims for utility model registration.

  3A to 3D are schematic views showing a lamp device 30 according to a preferred embodiment of the present invention. The lamp device 30 includes an LED unit 32. The LED unit 32 includes a base 301, a protrusion 302, a first LED main body 303, and a second LED main body 304. The base 301 has a central axis AxisC1 and an axis AC1. The protrusion 302 is asymmetrically disposed on the base 301 with respect to the central axis AxisC1, and has a first surface 3021, a second surface 3022, and an eccentric axis AxisOff1 that is eccentric with respect to the central axis AxisC2. The first LED body 303 is disposed on the first surface 3021 and arranged based on a first predetermined reference line L-R1. The second LED body 304 is disposed on the second surface 3022 and arranged based on a second predetermined reference line L-R2, and the eccentric axis AxisOff1 passes through the first LED body 303. The central axis AxisC1 passes through the second LED body 304, and there is a specific distance D1 between the axis AC1 and the eccentric axis AxisOff1, and the specific distance D1 is 1 mm to 5 mm.

  3A to 3D, the first predetermined reference line L-R1 and the second predetermined reference line L-R2 are both perpendicular to the central axis AxisC1, and the first predetermined reference line The line L-R1 and the second predetermined reference line L-R2 are parallel to each other, and the specific line is between the first predetermined reference line L-R1 and the second predetermined reference line L-R2. There is a distance D1. The base 301 further includes a disk 3010. The disk 3010 includes two semicircular notches 3011 and 3012 that are arranged symmetrically with respect to the central axis AxisC1. A coupling hole 3013 is further provided between the eccentric axis AxisOff1 and the eccentric position AOff1. The protrusion 302 includes a substantially rectangular sheet 306 and a substantially semicircular reflecting unit 305, and the substantially rectangular sheet 306 has a first end 3061 and a second end 3062, and the first end 3061 is The second end 3062 is coupled to the substantially semicircular reflecting unit 305, and the second end 3062 is coupled to the coupling hole 3013 (for example, the first end 3061 is fitted into the coupling hole 3013). The substantially rectangular sheet 306 has the first surface 3021 and the second surface 3022, and both the first surface 3021 and the second surface 3022 are flat.

  In a preferred embodiment, the coupling hole 3013 may be connected to a heat sink (not shown), and the heat sink may be connected to a back shell (not shown) of the lamp device 30 to dissipate heat. A flexible element may be connected between the heat sink and the back shell.

  3A to 3D, the first LED body 303 includes a plurality of first LED lamp cores 3030, and the second LED body 304 includes a plurality of second LED lamp cores 3040. Each of the LED lamp cores 3030 has a rectangular shape and is arranged on the first predetermined reference line L-R1, and the first predetermined reference line L-R1 is a first straight line, and the second LED lamp core Each of 3040 is rectangular and is arranged on the second predetermined reference line L-R2, and the second predetermined reference line L-R2 is a second straight line, and the first straight line and the second straight line Are parallel and have a vertical distance equal to the specific distance D1 between the first straight line and the second straight line. The first predetermined reference line L-R1 and the second predetermined reference line L-R2 are designed according to the outgoing light field, and other various arrangement shapes are not limited. Each of the first LED lamp cores 3030 has a first thickness TLED1, each of the second LED lamp cores 3040 has a second thickness TLED2, and the substantially rectangular sheet 306 has a third thickness. And the specific distance D1 is equal to the sum of 1/2 of the first thickness TLED1, 1/2 of the second thickness TLED2, and the third thickness D3. In another preferred embodiment, the specific distance D1 is equal to the sum of the first thickness TLED1, the second thickness TLED2, and the third thickness D3.

  FIG. 4A is a schematic diagram showing an irradiation area and brightness of the emitted light of a conventional HID lamp, and FIG. 4B is an irradiation of the emitted light of the LED lamp device according to a preferred embodiment of the present invention. It is a schematic diagram which shows an area and brightness. In FIG. 4A, the irradiation area Reg0 of the emitted light of the conventional HID lamp extends in parallel with the x axis near the central axis AxisC1. In FIG.4 (b), the irradiation area of the emitted light of an LED lamp apparatus contains at least two area. Referring to FIGS. 3 (a) to 3 (d) and FIG. 4 (b) at the same time, the lamp device 30 further includes a reflector (not shown), and the reflector is a standard for HID lamp standard H3 bulb. And the shape and structure of the reflecting surface thereof are not changed. As shown in FIG. 4B, the reflector reflects the light from the first LED body 303 to form a first light field Reg1 and a second light field Reg2. 3 (a) to 3 (b), FIG. 3 (d), and FIG. 4 (b), the central axis AxisC1 passes through the second LED body 304, and the first LED body 303 , The second light field Reg2 is close to the central axis AxisC1 and extends in parallel, and the first light field Reg1 is over the central axis AxisC1 (y-axis positive xy plane) , Which is below the central axis AxisC1 and extends in a fan shape, that is, extends in a fan shape in the xy plane in the negative y-axis direction in FIG. In another preferred embodiment, when the central axis AxisC1 passes through the second LED body 304 and the first LED body 303 is below the central axis AxisC1 (xy plane in the negative y-axis direction) The second light field Reg2 is near and parallel to the central axis AxisC1, and the first light field Reg1 is above the central axis AxisC1 and extends in a fan shape, ie, FIG. It extends in a fan shape on the xy plane in the positive y-axis direction in (a).

  When replacing the H3 bulb according to the standard specification with an LED lamp, when the shape and the structural design of the reflecting surface of the reflector are not changed, when the LED unit 30 of the preferred embodiment of the present invention is disposed, the eccentric axis AxisOff1 is On the central axis AxisC1 (the xy plane in the y-axis positive direction), the LED unit 30 is provided on the reflector. After this is well designed and simulated, a light field of emitted light as shown in FIG. 4B is obtained. The first light field Reg1 can lower the emitted light and assist the light of the second light field Reg2 so as not to irritate the eyes of the driver of the oncoming vehicle. The light irradiation effect of the headlight can be achieved. Of course, when the shape and the structural design of the reflecting surface of the reflector is not changed due to the user's demand, when the LED unit 30 of the preferred embodiment of the present invention is disposed, the eccentric axis AxisOff1 is below the central axis AxisC1. (The y-axis negative xy plane), the LED unit 30 may be provided on the reflector. At present, the light field Reg1 of the emitted light formed by the first LED unit is on the central axis AxisC1 (that is, the xy plane in the y-axis positive direction) and the front of the vehicle is brighter, but the oncoming vehicle It is easy to irritate the eyes of the driver, causing safety considerations. Moreover, you may arrange | position the LED unit 30 in a reflector as needed. As described above, the emitted light of the first LED main body 303 located on the position of the eccentric axis AxisOff1 can generate a compensation effect.

  In another preferred embodiment, when the shape and the structural design of the reflecting surface of the reflector is not changed, when the LED unit 30 is provided on the reflector, the eccentric axis AxisOff1 is The light field effect of the emitted light as shown in FIG. 4B, which should be below the central axis AxisC1 (the xy plane in the negative y-axis direction), can be obtained. In addition, for example, the fact that the eccentric axis AxisOff1 is on the left or right of the central axis AxisC1 may be appropriately adjusted according to demand, and does not depart from the spirit of the present invention. In general, when improving the brightness of the light field or the focusing area of light, the H3 bulb standard is an official standard, so only the reflector is improved without improving the standard. To do. The present invention improves the official standard H3 bulb and overcomes many years of deep technical prejudice by those skilled in the art.

  As shown in FIGS. 5A to 5C, in another preferred embodiment of the present invention, a plurality of first LED lamp cores 3030 and a plurality of second LED lamp cores 3040 are combined into a single first rectangular LED. A lamp core 4030 and a single second rectangular LED lamp core 4040 may each be substituted.

  5A to 5C are schematic views showing a lamp device 40 according to a preferred embodiment of the present invention. The lamp device 40 includes an LED unit 42. The LED unit 42 includes a base 401, a protrusion 402, and a first LED main body 403. The base 401 has a reference axis AxisC2 and an axis AC2. The protrusion 402 is disposed asymmetrically on the base 401 with respect to the reference axis AxisC2. The first LED body 403 is disposed on the protrusion 402, and a projection position PJP1 (see FIG. 5D) on the base 401 of the first LED body 403 is set with respect to the reference axis AxisC2. There is a specific distance D2 between the shaft center AC2 and the eccentric position AOff2, and the specific distance D2 is 1 mm to 5 mm.

  5A to 5C, the first LED main bodies 403 are arranged based on a first predetermined reference line L-R3. The lamp device 40 further includes a second LED body 404, the second LED body 404 is disposed on the protrusion 402 and arranged based on a second predetermined reference line L-R4, and the reference The axis AxisC2 passes through the second LED body 404, and the first predetermined reference line L-R3 and the second predetermined reference line L-R4 are parallel, and the first predetermined reference line and the The specific distance D2 is between the second predetermined reference line. The first LED body 403 includes a single first rectangular LED lamp core 4030, and the second LED body 404 includes a single second rectangular LED lamp core 4040. The direction Dir1 of the length of the rectangular LED lamp core 4030 is the first predetermined direction of the first predetermined reference line L-R3, and the direction of the length of the single second rectangular LED lamp core Dir2 Is a second predetermined direction of the second predetermined reference line L-R4. The first LED body 403 and the second LED body 404 may include an array LED lamp core.

  5 (a) to 5 (c), the base 401 has a disk 4010, and the disk 4010 has a rectangular notch 4011 and a semicircular shape arranged at positions symmetrical to each other with respect to the reference axis AxisC2. It has a notch 4012, and further has a coupling hole 4013 disposed between the axis AC2 and the eccentric position AxisOff2 of the eccentric axis. In general, the two semi-circular notches 3011 and 3012 for fixing the LED units 30 and 40 have the same shape in order to satisfy all H3 lamp-based fixing mechanism standards or reflector installation methods as much as possible. And one side may be a rectangular notch 4011 and the other side may be a semi-circular notch. The rectangular notch 4011 indicates that the eccentric axis AxisOff2 is biased upward, downward, leftward or rightward when the LED unit 40 is installed in a reflector.

  In a preferred embodiment, the coupling hole 4013 may be connected to a heat sink (not shown), and the heat sink may be connected to a back shell (not shown) of the lamp device 30 to dissipate heat. A flexible element may be connected between the heat sink and the back shell.

  5A to 5C, the protrusion 402 includes a substantially cylindrical sheet 406 and a substantially semicircular shielding unit 405. The substantially cylindrical sheet 406 includes a first end 4061 and a first end. The first end 4061 is coupled to the coupling hole 4013; the second end 4062 is coupled to the substantially semicircular shielding unit 405; and the substantially cylindrical sheet 406 is , Formed by symmetrically flattening both sides of the cylinder, and having a first rectangular plane 4021 and a second rectangular plane 4022, the first LED body 403 is disposed on the first rectangular plane 4021; The second LED body 404 is disposed on the second rectangular plane 4022.

  In a preferred embodiment, the first LED body 403 and the second LED body 404 may be a single first elliptical LED lamp core and a single second elliptical LED lamp core, respectively, The direction Dir1 of the long axis of the single first elliptical LED lamp core is the first predetermined direction of the first predetermined reference line L-R3, and the single second elliptical LED lamp The direction Dir2 of the long axis of the core is the second predetermined direction of the second predetermined reference line L-R4. The single first elliptical LED lamp core has a first thickness TLED3, the single second elliptical LED lamp core has a second thickness TLED4, and is substantially cylindrical. The sheet 406 has a third thickness D4, and the specific distance D2 is equal to the sum of the first thickness TLED3, the second thickness TLED4, and the third thickness D4.

  In FIG. 5A, the substantially semicircular shielding unit 405 includes a first fan-shaped plane 4051 and a second sector-shaped plane at a joint portion between the substantially semicircular shielding unit 405 and the substantially cylindrical sheet 406. 4052. The first sector plane 4051 and the second sector plane 4052 are both reflective surfaces having a plurality of straight stripe designs. The first fan-shaped plane 4051 and the second fan-shaped plane 4052 are not only reflective surfaces, but also can partially block light from the first LED body 403 and the second LED body 404. . Thereby, it can be avoided that the driver of the oncoming vehicle feels dazzled when the oncoming vehicle is directly illuminated with too much light. Referring to FIGS. 5A and 4B simultaneously, the first fan-shaped plane 4051 partially shields the light from the first LED body 403 to form the first light field Reg1. The second fan-shaped plane 4052 partially shields light from the second LED body 403 to form a second light field Reg2, and partially shields the first light field Reg1. And the second light field Reg2 is an area between the horizontal plane on the reference axis AxisC2 (that is, the z axis in FIG. 4B) and the ground (that is, the negative direction of the y axis in FIG. 4B). Xy plane).

  As described above, FIG. 5D is a schematic view showing the lamp device 40 according to another preferred embodiment of the present invention. In another preferred embodiment of the present invention, the difference between FIG. 5 (d) and FIG. 5 (c) is that the protrusion 402 has a cylindrical structure 441 and an umbrella shape between the eccentric axis AxisOff2 and the reference axis AxisC2. It has a structure 442. As shown in FIG. 5D, the umbrella-shaped structure 442 includes an umbrella column structure 4421 and an umbrella surface structure 4422, and the umbrella column structure 4421 is interposed between the reference axis AxisC2 and the eccentric axis AxisOff2. And is coupled to the second end 4412 of the cylindrical structure 441, the central axis of the cylindrical structure overlaps the central axis of the base 401, and the first end 4411 of the cylindrical structure 441 is the base Combine with 401. As can be seen from FIG. 5 (d), a single first rectangular LED lamp core 4030 is provided on the base 401 by the protrusion 402, and on the base 401 of the first LED lamp core 4030. The projection position PJP1 is at an eccentric position AOff2 that is eccentric with respect to the reference axis AxisC2. There is a specific distance D2 between the axial center AC2 and the eccentric position AOff2, and the specific distance D2 is 1 mm to 5 mm. The base 401 is a base conforming to the ECE R37 standard, for example, a base of an H3 bulb. When the light emitted from the first LED body 403 arrives at the umbrella surface structure 4422, the light shielding angle of the umbrella pillar structure is about 0 to 30 degrees, and the light emitted from the second LED body 404 is in the same situation. . The length of the umbrella column structure is about 15 mm to 20 mm in accordance with the focal length of the emitted light.

  FIG. 6A is a schematic diagram showing a lamp device 50 according to another preferred embodiment of the present invention. The lamp device 50 includes an LED unit 52, and the LED unit 52 includes a base 501 and a first LED lamp core 54. The base 501 has a center axis AxisC3 and an axis AC3. The first LED lamp core 54 is provided on the base 501, and the projection position PJP2 of the first LED lamp core 54 on the base 501 is eccentric with respect to the central axis AxisC3. There is a specific distance D5 between the axis AC3 and the eccentric position AOff3, and the specific distance D5 is 1 mm to 5 mm.

  FIG. 6B is a schematic view showing a lamp device according to another preferred embodiment of the present invention. The first LED lamp core 54 is indirectly provided on the base 501 by a protrusion 502. The protrusion 502 has a bent umbrella-like structure 503, and the bent umbrella-like structure 503 includes an umbrella surface structure 5032 and a bent column 5031. The bent column 5031 is coupled to the umbrella structure 5032 and includes a first sub column 5033, a second sub column 5034, and a bent portion 5035. The first sub-column 5033 overlaps the central axis AxisC3 of the base 501 and is coupled to the base 501. The second sub-column 5034 is disposed between the eccentric axis AxisOff3 and the central axis AxisC3, and is coupled to the umbrella surface structure 5032. The bent portion 5035 couples the first sub pillar 5033 with the second sub pillar 5034.

  In FIG. 6 (b), the lamp device 50 further includes a reflector 55 and a second LED lamp core 56. In a preferred embodiment, the first LED lamp core 54 has a first thickness TLED5, the second LED lamp core 56 has a second thickness TLED6, and the first sub-column 5033 has a diameter TK1. The second sub-column 5034 may be a rectangular sheet having a thickness TK2, and the sum of the diameter TK1 and the thickness TK2 is equal to the length of the bent portion, but the thickness As long as the sum of TLED5, TK2 and diameter TK1 is equal to the specific distance D5, the sum of the diameter TK1 and the thickness TK2 may be arbitrarily adjusted. In the present embodiment, the second thickness TLED 6 is preferably equal to the diameter TK1 of the first sub-column 5033. Of course, the second thickness TLED6 may not be equal to the diameter TK1, for example, when the diameter TK1 is unchanged, the thickness TK2 is gradually increased in the negative y-axis direction to increase the second thickness TLED6. And the central axis AxisC3 can pass through the second LED lamp core 56. Alternatively, when the length of the bent portion 5035 is gradually increased in the positive direction of the y-axis, the first thickness TLED5 is decreased and the eccentric axis AxisOff3 can pass through the first LED lamp core 54. .

  4B and 6B, the central axis AxisC3 passes through the second LED lamp core 56, and the first LED lamp core 54 is above the central axis AxisC3 ( That is, the second light field Reg2 is close to the central axis AxisC3 and extends in parallel, and the first light field Reg1 is below the central axis AxisC3. And extends in a fan shape (that is, extends in a fan shape in the xy plane in the negative y-axis direction). Referring to FIGS. 4 (b) and 6 (b) simultaneously, in another preferred embodiment, the central axis AxisC3 passes through the second LED lamp core 56, and the first LED lamp core 54 is When located below the central axis AxisC3 (ie, in the negative y-axis direction), the second light field Reg2 is near the central axis AxisC3 and extends in parallel, and the first light field Reg1 is It is above the central axis AxisC3 and extends in a fan shape (that is, a fan extends in the xy plane in the negative y-axis direction).

  FIG. 7 (a) is a schematic diagram showing an outgoing optical path with a decentering axis AxisOff3 according to a preferred embodiment of the present invention, and FIG. 7 (b) shows a decentering position according to an embodiment of the present invention. It is a schematic diagram which shows the output optical path in. Referring to FIGS. 7 (a) and 7 (b) simultaneously, the light emitted from the first LED lamp core 54 on the axis AxisOff3 is reflected by the reflector 55 to form the first emitted light Emit1, The first outgoing light Emit1 forms the first light field Reg1 in FIG. The light emitted from the second LED lamp core 56 on the central axis AxisC3 is reflected by the reflector 55 to form the second emitted light Emit2, which is the second emitted light Emit2 in FIG. A light field Reg2 is formed.

  In another preferred embodiment of the present invention, the eccentric axis AxisOff3 is arranged below the central axis AxisC3. FIG. 7C is a schematic diagram showing an outgoing light field when the eccentric axis AxisOff 3 according to a preferred embodiment of the present invention is below. Referring to FIG. 7B and FIG. 7C at the same time, the light emitted from the first LED lamp core 54 on the axis AxisOff 3 is reflected by the reflector 55 to form the first emitted light Emit 3, The first outgoing light Emit3 forms the first light field Reg3 in FIG. The light emitted from the second LED lamp core 56 on the central axis AxisC3 is reflected by the reflector 55 to form the second emitted light Emit4. The second emitted light Emit4 is the second emitted light in FIG. A light field Reg4 is formed. 7A to 7C and FIG. 4B, it is possible to know an emission optical path and a light field in which the lamp device 50 according to the present invention is formed.

  In another preferred embodiment, the first LED lamp core 54 on the other side of the second LED lamp core 56 on the central axis AxisC3 can be omitted and changed to a heat dissipation structure. FIG. 8A is a side view showing a lamp device 60 according to another preferred embodiment of the present invention. The lamp device 60 includes an LED unit 62. The LED unit 62 includes a base 601, a protrusion 602, and an LED main body 603. The base 601 has a central axis AxisC4, and a supporting object. The support object 604 includes, for example, a lamp panel. The protrusion 602 has a first surface 6021 and a second surface 6022, the LED body 603 is disposed near the intersection of the first surface 6021 and the central axis AxisC4, and the heat dissipation structure 606 includes Located on the second surface 6022. The heat dissipation structure 606 has a plurality of groove tanks 607, and the protrusion 602 is a good heat conductor, for example, a metal-like material. The plurality of groove tanks 607 can be alternately arranged to form a plurality of heat radiation fins 608, and the amount of heat of the LED main body 603 can be radiated by the plurality of groove tanks 607 and the plurality of heat radiation fins 608.

  As shown in FIGS. 8B and 8C, the protrusion 602 is disposed on the LED unit 62 asymmetrically with respect to the central axis AxisC4. FIG. 8B is a schematic diagram showing that the protrusions according to a preferred embodiment of the present invention are offset upward. FIG. 8C is a schematic diagram showing that the protrusion according to the preferred embodiment of the present invention is offset downward. In FIG. 8B, the central axis AxisC4 is at the center position of the support object 604, and the protrusion 602 offsets the offset OFS1 upward. The center position OC1 of the protrusion 602 also offsets the offset OFS1 upward from the position of the center axis AxisC4. The projection ring CC1 of the protruding portion 602 that is not originally offset can be compared with the offset protruding portion 602. The offset OFS1 is preferably 1 mm to 5 mm. In FIG. 8C, the central axis AxisC4 is at the center position of the support object 604, and the protrusion 602 offsets the offset OFS2 downward. The center position OC1 of the protrusion 602 also offsets the offset OFS2 downward from the position of the center axis AxisC4. The projection ring CC1 of the protruding portion 602 that is not originally offset can be compared with the offset protruding portion 602. The offset OFS2 is preferably 1 mm to 5 mm.

  FIG. 8D is a schematic diagram showing that the support object 604 and the heat sink 605 according to the preferred embodiment of the present invention are connected to the protruding portion 602. The support object 604 is connected to the protrusion 602 by a first connection unit 609 and a second connection unit 610, and the first connection unit 609 and the second connection unit 610 may be screws. The heat sink 605 may be connected to the support object 604 and the protrusion 602 by a third connection unit 611, and may be connected to the reflector 55 by a flexible heat dissipation unit (not shown). Regarding this, see Taiwanese application No. 105214753 filed on September 26, 2016 by the applicant, and will not be repeated here.

  FIG. 9 is a schematic view showing another lamp device 70 according to a preferred embodiment of the present invention. The lamp device 70 has a first central axis AxisC5, and further includes a base 701 and a protrusion 702. The base 701 has a second central axis AxisC6, the protrusion 702 has a third central axis AxisC7, the second central axis AxisC6 overlaps the first central axis AxisC5, and the third center There is an offset OFS3 between the axis AxisC7 and the second central axis AxisC6, and the offset OFS3 is 1 mm to 5 mm. In FIG. 9, a first center axis AxisC5, a second center axis AxisC6, and a third center axis AxisC7 pass through center points C5, C6, and C7, respectively. The center point C5 is, for example, the geometric center point of the H3 lamp base, the center point C6 is, for example, the geometric center point of the H3 lamp panel, and the center point C7 is, for example, the geometric center of the object on which the LED lamp core is placed. Is a point.

  According to the above description, it will be understood by those skilled in the art that various changes and modifications can be made without departing from the technical idea of the present invention. Therefore, the technical scope of the present invention is not limited to the contents described in the detailed description of the specification, but must be determined by the scope of the utility model registration request.

  (Example)

  1. The lamp device includes an LED unit, and the LED unit is disposed asymmetrically on the base with a base having a central axis and an axial center on the basis of the central axis, the first surface, the second surface And a protrusion having an eccentric axis that is eccentric with respect to the central axis, a first LED body that is disposed on the first surface and is arranged based on a first predetermined reference line, and the second surface A second LED main body arranged on the basis of a second predetermined reference line, the eccentric axis passing through the first LED main body, and the central axis being the second LED main body , And there is a specific distance between the axis and the eccentric position, and the specific distance is 1 mm to 5 mm.

  2. In the lamp device according to the first embodiment, the first predetermined reference line and the second predetermined reference line are orthogonal to the central axis, and the first predetermined reference line and the second predetermined reference line are The reference lines are parallel, the specific distance is between the first predetermined reference line and the second predetermined reference line, the base further includes a disk, and the disk is Two semicircular notches disposed at positions symmetrical to each other with respect to the central axis, and further comprising a coupling hole disposed between the shaft center and the eccentric position of the eccentric shaft, The protrusion has a substantially rectangular sheet and a substantially semicircular reflection unit, the substantially rectangular sheet has a first end and a second end, and the first end is coupled to the coupling hole, And the second end is coupled to the substantially semicircular reflecting unit, and the substantially rectangular sheet includes the first surface and the front surface. The first surface and the second surface are both planar, the first LED body includes a plurality of first LED lamp cores, and the second LED body includes a plurality of first surfaces. Each of the plurality of first LED lamp cores is rectangular and arranged in a first straight line, each of the plurality of second LED lamp cores is rectangular and has a second straight line The first straight line and the second straight line are parallel, and the first straight line and the second straight line have a vertical distance equal to the specific distance, and the plurality of first LEDs Each of the lamp cores has a first thickness, each of the plurality of second LED lamp cores has a second thickness, the generally rectangular sheet has a third thickness, and The specific distance is 1/2 of the first thickness and 1/2 of the second thickness. And equal to the sum of the third thicknesses.

  3. In the lamp device described in Embodiments 1 and 2, the lamp device further includes a reflector, the protrusion includes a substantially rectangular sheet and a substantially semicircular reflecting unit, and the reflector includes the first reflector. The light from one LED body is reflected to form a first light field and a second light field, the central axis passes through the second LED body, and the first LED body is above the central axis. The second light field is near and parallel to the central axis, the first light field is below the central axis and extends in a sector, and the central axis is When passing through the second LED body and the first LED body is below the central axis, the second light field is near the central axis and extends parallel to the first light field. And the first LED body includes a single first rectangular LED lamp core, and the second LED body includes a single second rectangular body. The LED lamp core includes an LED lamp core, and the direction of the length of the single first rectangular LED lamp core is the first predetermined direction of the first predetermined reference line, and the single second rectangular LED lamp The direction of the length of the core is the second predetermined direction of the second predetermined reference line.

  4. The lamp device includes an LED unit, and the LED unit includes a base having a reference axis and an axis, a protrusion asymmetrically disposed on the base with respect to the reference axis, and the protrusion. A projection position on the base of the first LED body is an eccentric position that is eccentric with respect to the reference axis, and the axial center and the eccentric position There is a specific distance between and the specific distance is between 1 mm and 5 mm.

  5. The lamp device according to Example 4, wherein the first LED body is arranged based on a first predetermined reference line, the lamp device further includes a second LED body, and the second LED body is Arranged on the protrusion and arranged based on a second predetermined reference line, the reference axis passes through the second LED body, and the first predetermined reference line and the second predetermined reference line Lines are parallel, the specified distance is between the first predetermined reference line and the second predetermined reference line, the base has a disk, and the disk has the reference axis A rectangular notch and a semi-circular notch arranged at positions symmetrical to each other, further comprising a coupling hole arranged between the axis and the eccentric position of the eccentric axis, The protruding portion has a substantially cylindrical sheet and a substantially semicircular shielding unit, The shaped sheet has a first end and a second end, the first end is coupled to the coupling hole, and the second end is coupled to the substantially semicircular shielding unit, and the generally cylindrical The shaped sheet is formed by symmetrically flattening both sides of a cylinder, and has a first rectangular plane and a second rectangular plane, and the first LED body is disposed on the first rectangular plane, The second LED body is disposed on the plane of the second rectangle, the first LED body includes a single first elliptical LED lamp core, and the second LED body is a single second ellipse. A long axis direction of the single first elliptical LED lamp core is a first predetermined direction of the first predetermined reference line, and the single second elliptical The direction of the long axis of the LED lamp core is the second predetermined direction of the second predetermined reference line, and the single first The circular LED lamp core has a first thickness, the single second elliptical LED lamp core has a second thickness, and the substantially cylindrical sheet has a third thickness. And the specific distance is equal to the sum of the first thickness, the second thickness, and the third thickness.

  6. The lamp device according to any one of Examples 4 to 5, wherein the lamp device further includes a second LED main body, the second LED main body is disposed on the protruding portion, and is based on a second predetermined reference line. The reference shaft passes through the second LED body, the protrusion has a substantially cylindrical sheet and a substantially semicircular shielding unit, and the substantially semicircular shielding unit is substantially the same as the substantially semicircular shielding unit. The joint between the semicircular shielding unit and the substantially cylindrical sheet has a first sector plane and a second sector plane, and the first sector plane and the second sector plane are both A reflective surface having a plurality of straight stripe designs, wherein the first fan-shaped plane partially shields light from the first LED body to form a first light field, and the second fan-shaped The plane of the part of the light from the second LED body The first light field and the second light field extend beyond the area between the horizontal plane on the reference axis and the ground by partially shielding to form a second light field and partially shielding. Absent.

  7. The lamp device includes an LED unit, and the LED unit includes a base having a central axis and an axis, and a first LED lamp core provided on the base, and the first LED lamp core The projection position on the base is at an eccentric position that is eccentric with respect to the central axis, and there is a specific distance between the axial center and the eccentric position, and the specific distance is 1 mm. ~ 5mm.

  8. In the lamp device described in Example 7, the first LED lamp core is indirectly provided on the base by a protrusion, and the protrusion has a cylindrical structure and an umbrella structure. The umbrella-shaped structure has an umbrella column structure and an umbrella surface structure, and the umbrella column structure is located between the axis and the eccentric position, and is coupled to a first end of the cylindrical structure. The central axis of the cylindrical structure overlaps the central axis of the base, the second end of the cylindrical structure is coupled to the base, and the base is a base for an H3 bulb that complies with the ECE R37 standard The light shielding angle of the umbrella pillar structure is 0 to 30 degrees, and the length of the umbrella pillar structure is 15 mm to 20 mm.

  9. The lamp device according to any one of Examples 7 to 8, wherein the lamp device further includes a reflector and a second LED lamp core, and the reflector reflects light from the first LED lamp core to reflect the first light. Forming a field and reflecting light from the second LED lamp core to form a second light field, the central axis passing through the second LED lamp core, and the first LED lamp core is The second light field extends near and parallel to the central axis, the first light field extends below the central axis and extends in a fan shape when overlying the central axis; When the central axis passes through the second LED lamp core and the first LED lamp core is below the central axis, the second light field is near and parallel to the central axis. Extending said first light field is located on the central axis and extending in a fan shape.

  10. The lamp device according to any one of Examples 7 to 9, wherein the protrusion has a bent umbrella-like structure, and the bent umbrella-like structure includes an umbrella surface structure and a bent column, and the bent column. Includes a first sub-column, a second sub-column, and a bent portion, and the first sub-column overlaps with the central axis of the base and is coupled to the base, The second sub pillar is disposed between the eccentric shaft and the shaft center and is coupled to the umbrella structure, and the bent portion couples the first sub pillar to the second sub pillar.

  11. The lamp device includes a base having a central axis and an axial center, and a bias that is asymmetrically disposed on the base with respect to the central axis and is eccentric with respect to the first surface, the second surface, and the central axis. A protrusion having an axis, and the protrusion further includes an LED main body disposed on the first surface and a heat dissipation structure disposed on the second surface, Passing through the heat dissipation structure, the central axis passes through the LED body, and there is a specific distance between the axis and the eccentric position, and the specific distance is 1 mm to 5 mm.

  12. In the lamp device described in Example 11, the LED main body is disposed near an intersection of the first surface and the central axis, the heat dissipation structure includes a plurality of groove tanks, The groove tanks are alternately arranged to form a plurality of heat radiation fins, the protrusion is a good heat conductor, the base includes a support object and a heat sink, and the support object is a lamp panel The center axis is at a first center position of the support object, the protrusion has a second center position, and there is an offset between the first center position and the second center position; The offset is the specific distance, and the lamp device further includes a first connection unit, a second connection unit, a third connection unit, a reflector, and a flexible heat dissipation unit, The object is connected to the protrusion by the first connection unit and the second connection unit, the first connection unit and the second connection unit are screws, and the heat sink is connected to the protrusion by the third connection unit. It is connected to the support object and the protrusion, and is connected to the reflector by the flexible heat dissipation unit.

  13. The lamp device further includes a base having a first central axis, a second central axis, and a protrusion having a third central axis, wherein the second central axis is the first central axis. There is an overlap between the third central axis and the second central axis, and the offset is between 1 mm and 5 mm.

  DESCRIPTION OF SYMBOLS 10 ... Conventional LED lamp base, 100 ... Center axis, 101 ... Base, 102 ... Projection part, 103, 603 ... LED main body, 1031 ... Bottom surface, 20 ... Daytime lighting of conventional LED vehicle, 201 ... Light source positioning part, 202 ... reflective surface, 203 ... LED light source, 30, 40, 50, 60, 70 ... lamp device, 301, 401, 501, 601, 701 ... base, 3010, 4010 ... disc, 3011, 3012, 4012 ... semicircular notch , 3013, 4013 ... coupling hole, 302, 402, 502, 602, 702 ... projection, 3021, 6021 ... first surface, 3022, 6022 ... second surface, 303, 403 ... first LED body, 3030 ... multiple First LED lamp core, 3040... Multiple second LED lamp cores, 304, 404... Second LED main body, 305. Reflective unit, 306 ... substantially rectangular sheet, 3061, 4061, 4411 ... first end, 3062, 4062, 4412 ... second end, 32, 42, 52, 62 ... LED unit, 4011 ... rectangular notch, 4021 ... First rectangular plane, 4022 ... Second rectangular plane, 4030 ... Single first rectangular LED lamp core, 4040 ... Single second rectangular LED lamp core, 405 ... Substantially semicircular shielding unit, 4051 ... first fan-shaped plane, 4052 ... second fan-shaped plane, 406 ... substantially cylindrical sheet, 441 ... cylindrical structure, 442 ... umbrella-like structure, 4421 ... umbrella pillar structure, 4422, 5032 ... umbrella face structure, 503 ... bent umbrella-like structure, 5031 ... bent column, 5033 ... first sub-column, 5034 ... second sub-column, 5035 ... bent portion, 54 ... first LED lamp core, 55 ... Lector, 56 ... second LED lamp core, 604 ... support object, 605 ... heat sink, 606 ... heat radiation structure, 607 ... groove tank, 608 ... heat radiation fin, 609 ... first connection unit, 610 ... second connection unit, 611 ... 3rd connecting unit, AC1, AC2, AC3 ... axis, AOff1, AOff2, AOff3 ... eccentric position, AxisC1, AxisC2, AxisC3 ... central axis, AxisC5 ... first central axis, AxisC6 ... second central axis, AxisC7 ... first Three central axes, AxisOff1, AxisOff2, AxisOff3 ... declination, C5, C6, C7 ... center point, CC1 ... projection ring, D1, D2, D5 ... specific distance, D3, D4 ... third thickness, Dir1, Dir2 ... Long axis direction, Emit1, Emit3 ... first outgoing light, Emit2, Emit4 ... second outgoing light, L-R1, L-R3 ... first predetermined reference line, L-R2, L-R4 ... second predetermined light Reference line, OC1, center position of protrusion 602, OFS1, OFS2, OFS3 ... Offset, PJP1, PJP2 ... Projection position, Reg0 ... Area irradiated with light emitted from a conventional HID lamp, Reg1, Reg3 ... First light field, Reg2, Reg4 ... Second light field, TK1 ... Diameter, TK2 ... Thickness , TLED1, TLED3, TLED5 ... first thickness, TLED2, TLED4, TLED6 ... second thickness.

Claims (13)

A lamp device comprising an LED unit,
The LED unit is
A base having a central axis and an axial center;
A protrusion disposed asymmetrically on the base with respect to the central axis and having a first surface, a second surface, and an eccentric axis decentered with respect to the central axis;
A first LED body disposed on the first surface and arranged based on a first predetermined reference line;
A second LED body disposed on the second surface and arranged based on a second predetermined reference line;
The eccentric axis passes through the first LED body, the central axis passes through the second LED body, and there is a specific distance between the axis and the eccentric position, and the specific axis A lamp device characterized in that the distance is 1 mm to 5 mm. The first predetermined reference line and the second predetermined reference line are orthogonal to the central axis, and the first predetermined reference line and the second predetermined reference line are parallel to each other, There is the specific distance between a predetermined reference line and the second predetermined reference line,
The base further includes a disk, and the disk has two semicircular notches arranged at positions symmetrical to each other with respect to the central axis, and the shaft center and the eccentric position of the eccentric shaft, Further comprising a coupling hole disposed between
The protrusion has a substantially rectangular sheet and a substantially semicircular reflecting unit, the substantially rectangular sheet has a first end and a second end, and the first end is coupled to the coupling hole. And the second end is coupled to the substantially semicircular reflecting unit;
The substantially rectangular sheet has the first surface and the second surface, and both the first surface and the second surface are flat surfaces,
The first LED body includes a plurality of first LED lamp cores, the second LED body includes a plurality of second LED lamp cores, and each of the plurality of first LED lamp cores is rectangular, And each of the plurality of second LED lamp cores is rectangular and arranged in a second line, the first line and the second line are parallel, and the first line Between the second straight line has a vertical distance equal to the specific distance,
Each of the plurality of first LED lamp cores has a first thickness, each of the plurality of second LED lamp cores has a second thickness, and the substantially rectangular sheet has a third thickness. The specific distance is equal to 1/2 of the first thickness, 1/2 of the second thickness, and the sum of the third thickness. The lamp device as described. The lamp device further includes a reflector,
The protrusion has a substantially rectangular sheet and a substantially semicircular reflecting unit,
The reflector reflects light from the first LED body to form a first light field and a second light field,
When the central axis passes through the second LED body and the first LED body is above the central axis, the second light field is near the central axis and extends in parallel. The first light field is below the central axis and extends in a sector;
When the central axis passes through the second LED body and the first LED body is below the central axis, the second light field is near the central axis and extends in parallel. The first light field is above the central axis and extends in a fan shape;
The first LED body includes a single first rectangular LED lamp core, the second LED body includes a single second rectangular LED lamp core, and the single first rectangular LED lamp. The direction of the length of the core is the first predetermined direction of the first predetermined reference line, and the direction of the length of the single second rectangular LED lamp core is the direction of the second predetermined reference line. The lamp device according to claim 1, wherein the lamp device is in a second predetermined direction. A lamp device comprising an LED unit,
The LED unit is
A base having a reference axis and an axis,
A protrusion disposed asymmetrically on the base with respect to the reference axis;
A first LED body disposed on the protruding portion,
The projection position on the base of the first LED body is an eccentric position that is eccentric with respect to the reference axis, and there is a specific distance between the axis and the eccentric position, The lamp device is characterized in that the distance is 1 mm to 5 mm. The first LED body is arranged based on a first predetermined reference line,
The lamp device further includes a second LED body, the second LED body is disposed on the projecting portion and arranged based on a second predetermined reference line, and the reference axis is the second LED body. And the first predetermined reference line and the second predetermined reference line are parallel, and the specific distance is between the first predetermined reference line and the second predetermined reference line. There is
The base includes a disk, and the disk includes a rectangular notch and a semicircular notch arranged at positions symmetrical to each other with respect to the reference axis, and the eccentricity of the axis and the eccentric axis. Further having a coupling hole arranged between the position,
The protrusion has a substantially cylindrical sheet and a substantially semicircular shielding unit, the substantially cylindrical sheet has a first end and a second end, and the first end is connected to the coupling hole. And the second end is coupled to the substantially semicircular shielding unit;
The substantially cylindrical sheet is formed by symmetrically flattening both sides of a cylinder, and has a first rectangular plane and a second rectangular plane, and the first LED body is disposed on the first rectangular plane. The second LED body is disposed on the plane of the second rectangle;
The first LED body includes a single first elliptical LED lamp core, the second LED body includes a single second elliptical LED lamp core, and the single first elliptical LED lamp core. The major axis direction of the LED lamp core is the first predetermined direction of the first predetermined reference line, and the major axis direction of the single second elliptical LED lamp core is the second predetermined direction. The second predetermined direction of the reference line of
The single first elliptical LED lamp core has a first thickness, the single second elliptical LED lamp core has a second thickness, and the substantially cylindrical sheet. 5. The lamp device according to claim 4, wherein the lamp device has a third thickness, and the specific distance is equal to a sum of the first thickness, the second thickness, and the third thickness. . The lamp device further includes a second LED body, the second LED body is disposed on the projecting portion and arranged based on a second predetermined reference line, and the reference axis is the second LED body. Pass through
The protrusion has a substantially cylindrical sheet and a substantially semicircular shielding unit,
The substantially semicircular shielding unit has a first fan-shaped plane and a second sector-shaped plane at a joint portion between the substantially semicircular shielding unit and the substantially cylindrical sheet,
The first sector plane and the second sector plane are both reflective surfaces having a plurality of straight stripe designs,
The first fan-shaped plane partially shields light from the first LED body to form a first light field, and the second fan-shaped plane partially blocks light from the second LED body. The first light field and the second light field extend beyond the area between the horizontal plane on the reference axis and the ground by partially shielding to form a second light field and partially shielding. The lamp device according to claim 4, wherein there is no lamp device. A lamp device comprising an LED unit,
The LED unit is
A base having a central axis and an axial center;
A first LED lamp core provided on the base,
The projection position of the first LED lamp core on the base is an eccentric position of the eccentricity that is eccentric with respect to the central axis, and there is a specific distance between the axial center and the eccentric position. The specified distance is 1 mm to 5 mm. The first LED lamp core is provided on the base indirectly by a protrusion,
The protrusion has a cylindrical structure and an umbrella-like structure, and the umbrella-like structure has an umbrella pillar structure and an umbrella surface structure, and the umbrella pillar structure is between the axis and the eccentric position. And is coupled to a first end of the cylindrical structure, a central axis of the cylindrical structure overlaps the central axis of the base, and a second end of the cylindrical structure is coupled to the base;
The base is a base for an H3 bulb complying with the ECE R37 standard,
The light blocking angle of the umbrella column structure is 0 to 30 degrees,
The lamp device according to claim 7, wherein a length of the umbrella column structure is 15 mm to 20 mm. The lamp device further includes a reflector and a second LED lamp core,
The reflector reflects light from the first LED lamp core to form a first light field, and reflects light from the second LED lamp core to form a second light field;
When the central axis passes through the second LED lamp core and the first LED lamp core is above the central axis, the second light field is near and parallel to the central axis. The first light field is below the central axis and extends in a fan shape;
When the central axis passes through the second LED lamp core and the first LED lamp core is below the central axis, the second light field is near and parallel to the central axis. 8. The lamp device of claim 7, wherein the first light field is above the central axis and extends in a fan shape. The protrusion has a bent umbrella-like structure,
The bent umbrella-like structure includes an umbrella surface structure and a bent column,
The bent column is coupled to the umbrella structure, and includes a first sub-column, a second sub-column, and a bent portion.
The first sub-column overlaps with the central axis of the base and is coupled to the base;
The second sub-column is disposed between the eccentric shaft and the shaft center, and is coupled to the umbrella structure.
The lamp device according to claim 7, wherein the bent portion connects the first sub pillar with the second sub pillar. A base having a central axis and an axial center;
A protrusion disposed asymmetrically on the base with respect to the central axis and having a first surface, a second surface, and an eccentric axis that is eccentric with respect to the central axis;
The protrusion is
An LED body disposed on the first surface;
A heat dissipating structure disposed on the second surface;
The eccentric axis passes through the heat dissipation structure, the central axis passes through the LED body, and there is a specific distance between the axis and the eccentric position, and the specific distance is 1 mm to A lamp device characterized by being 5 mm. The LED body is disposed near an intersection of the first surface and the central axis;
The heat dissipation structure has a plurality of groove tanks, and the plurality of groove tanks are alternately arranged to form a plurality of heat dissipation fins,
The protrusion is a good thermal conductor;
The base includes a support object and a heat sink, and the support object is a lamp panel;
The central axis is at a first central position of the support object, the protrusion has a second central position, and there is an offset between the first central position and the second central position, The offset is the specific distance,
The lamp device further includes a first connection unit, a second connection unit, a third connection unit, a reflector, and a flexible heat dissipation unit,
The support object is connected to the protrusion by the first connection unit and the second connection unit, and the first connection unit and the second connection unit are screws,
The lamp device of claim 11, wherein the heat sink is connected to the support object and the protrusion by the third connection unit, and is connected to the reflector by the flexible heat dissipation unit. Having a first central axis;
A base having a second central axis;
A protrusion having a third central axis,
The second central axis overlaps the first central axis, and there is an offset between the third central axis and the second central axis, and the offset is 1 mm to 5 mm. .

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