TW202225598A - Light projection structure - Google Patents

Abstract

The present invention is a light projection structure in which the auxiliary lamp device is arranged on one side of the main lamp device, the main lamp device projects a first light pattern, and the auxiliary lamp device projects a second light pattern, wherein the second light pattern includes a notch portion, and a first light pattern projected by the main light device is projected onto the notch portion, so that the main light device combined with the auxiliary light device can increase the amount of light projected Range, produce a more uniform light pattern, and improve the light irradiation area.

Description

light projection structure

The present invention relates to a light projection structure, especially to a lighting device.

With the development of the automobile industry, the brightness of the headlights and the area of light distribution also have certain specification requirements. If the brightness distribution of the lights is uneven, or the brightness distribution range is too small, it will cause driving safety.

With the continuous development of automotive technology, the headlights of vehicles have also developed. From halogen headlights, xenon headlights, and LED headlights have appeared on different models one after another. Halogen headlights are special incandescent lamps, which are widely used. It is used in the field of automotive lighting. The principle is to use a resistor to generate heat when current passes through it. When the temperature is high enough, it emits black body radiation with a wavelength in the visible light band. It is generally divided into iodine-tungsten lamps and bromine-tungsten lamps. The temperature of the filament is not as high as the boiling point of tungsten, but there will still be a small amount of tungsten volatilized at high temperature. When the volatilized tungsten is cooled, it will condense, and soon a black tungsten film will be formed on the inner wall of the bulb.

High Intensity Discharge Lamp (High Intensity Discharge Lamp), which is a gas discharge lamp, the xenon lamp is a high-voltage pulse electricity after the battery's 12V voltage is instantly raised to a trigger voltage of 23kV or more by using a matching electronic ballast. Between the metal electrodes in the miniature quartz bulb, the substances in the excitation bulb (xenon gas, a small amount of mercury vapor and metal halide) are ionized in the arc to produce light. Xenon headlights have two significant advantages: on the one hand, xenon gas The bulb has three times the light intensity than ordinary halogen bulbs, but consumes only two-thirds of the energy; on the other hand, xenon bulbs use a light color similar to sunlight, creating better visual conditions for drivers.

LED lights (Light Emitting Diode), also known as light-emitting diodes, are an important part of many vehicle tail lights, high-mounted brake lights and daytime running lights, and even vehicles use them in vehicle headlights. The luminous efficiency is higher, the energy consumption is only 1/20 of the halogen lamp, and its service life is as long as 100,000 hours, and there is basically no need to replace it in the design life of the whole vehicle. In addition, its small size, compact and easy to arrange and shape design.

In the prior art, most car headlights generate a fixed light field and brightness. Most of the light emitted by the headlights is concentrated in the front area, and the brightness of the surrounding area is relatively weak, and the surrounding area of the car will appear to the driver. There are more blind spots. When driving at night or driving to a dimly lit place, if there are conditions around, such as pedestrians or animals moving towards the area in front of the vehicle body, and when driving turns, due to insufficient brightness in front of the vehicle body, when pedestrians, animals, Or the object has appeared in front of the car body, and the speed of the car is fast, the driver often fails to respond, which leads to an accident.

To sum up, in view of the shortcomings of the current vehicle headlights, the present inventor has developed a light projection structure after a long period of research and development, which is provided by an auxiliary light device on one side of a main light device, and the The main light device emits a pixel array light and projects a first light pattern, the auxiliary light device emits a second light and projects a second light pattern, and the second light pattern includes a gap part, the first light pattern is projected on the notch part, through the above structure, a more uniform light pattern can be generated, and the light irradiation area can be improved.

The main purpose of the present invention is to provide a light projection structure in which an auxiliary light device is arranged on one side of a main light device, the main light device projects a first light pattern, and the auxiliary light device projects a first light pattern Two light-shaped patterns, the second light-shaped pattern includes a gap portion, the first light-shaped pattern is projected on the gap portion, and the first light-shaped pattern is a dynamic pattern.

In order to achieve the above object, the present invention discloses a light projection structure, which includes a main light device and an auxiliary light device, the main light device projects a first light pattern, and the auxiliary light device is disposed on the main light device On one side, the auxiliary light device includes a second light-emitting module, the second light-emitting module emits a second light, a second light deflection device, which is arranged on one side of the second light-emitting module, the first light-emitting module Two light rays are projected onto the second light deflection device and reflected by the second light deflection device. A second lens device is disposed on a second light-emitting side of the second light deflection device, and part of the second light rays are passed through the second light deflection device. The second light deflecting device is reflected through the second lens device, and another part of the second light is reflected on the second light shape conversion device through the second light deflecting device, and projected on the second lens device. A second light-shaped pattern, wherein the second light-shaped pattern includes a notch portion, and the first light-shape pattern is projected on the notch portion.

In an embodiment of the present invention, it is also disclosed that the main light device includes a first light-emitting module, the first light-emitting module emits a first light, and a first light deflection device, which is disposed on the first light-emitting module. Below the light emitting module, the first light is projected to the first light deflection device, and reflected by the first light deflection device. A first light shape conversion device is disposed on one side of the first light deflection device. The first light shape conversion device is arranged under the first light-emitting module, the first light is projected to the first light shape conversion device, and reflected into a pixel array light, and a first lens device is arranged on the first light A first light output side of the shape conversion device, the pixel array light passes through the first lens device, and the first light shape pattern is projected on the first lens device.

In an embodiment of the present invention, it is also disclosed that the first light shape conversion device is a digital micromirror device (Digital Micromirror Device, DMD), and the first light shape conversion device controls the first light shape pattern to be Dynamic pattern.

In an embodiment of the present invention, it is also disclosed that a first base is further provided, the first light shape conversion device is disposed on one side of the first base, the first light deflection device and the first lens The devices are respectively arranged at the front end of the first base.

In an embodiment of the present invention, it is also disclosed that the first lens device includes a first hollow shell and at least one first lens, the first hollow shell system is disposed at the front end of the first base, and the first A light deflection device is arranged in the first hollow casing, and the at least one first lens is arranged at the front end of the first hollow casing.

In an embodiment of the present invention, it is also disclosed that an inclination angle of the fixing portion relative to the first light shielding portion and the second light shielding portion is between 10 and 30 degrees.

In an embodiment of the present invention, it is also disclosed that a second base is further provided, the second light-emitting module and the second light deflection device are respectively disposed on the second base, and the second light deflection The device covers the second light-emitting module, and the second light-shape conversion device and the second lens device are respectively arranged at the front end of the second base.

In an embodiment of the present invention, it is also disclosed that the second lens device includes a second hollow shell and a second lens, the second hollow shell system is disposed at the front end of the second base, and the second The light shape conversion device is arranged in the second hollow shell, and the second lens is arranged at the front end of the second hollow shell, and the second lens device is further provided with a first groove and a second concave A groove is formed on the second hollow shell, and the first groove corresponds to the first shading portion, the second groove corresponds to the second shading portion, and one side of the first shading portion is disposed on the first shading portion. In the first groove, one side of the second light-shielding portion is disposed in the second groove.

In an embodiment of the present invention, it is also disclosed that the two arcs on the second light-shaped pattern correspond to a first arc edge of the first light shielding portion and a second arc edge of the second light shielding portion, respectively.

In an embodiment of the present invention, it is also disclosed that the notch is disposed between the two arcs.

In order to make your examiners have a further understanding and understanding of the features of the present invention and the effects achieved, I would like to supplement the preferred embodiments and cooperate with detailed descriptions, and the descriptions are as follows:

In order to solve the problem that most of the vehicle headlights of the conventional projection device generate a fixed light field and brightness, the light emitted by the vehicle lamp is mostly concentrated in the front area, and the brightness of the surrounding area is relatively weak, and the surrounding area of the vehicle is not visible to the driver. It is said that there will be more blind spots. When driving at night or driving to a dimly lit place, if there are conditions around, such as pedestrians or animals moving towards the area in front of the vehicle body, and when driving turns, due to the lack of brightness around the front of the vehicle body, when Pedestrians, animals or objects have appeared in front of the car body, and the speed of the car is relatively fast, and the driver often fails to respond, which leads to accidents. Therefore, after long-term research and development, the inventor finally invented a light projection structure, which is An auxiliary light device is arranged on one side of a main light device, the main light device projects a first light pattern, the auxiliary light device projects a second light pattern, and the second light pattern includes a gap part, the first light pattern is projected on the notch part, and the first light pattern is a dynamic pattern.

First, please refer to the first figure, which is a three-dimensional schematic diagram of a preferred embodiment of the present invention. As shown in the figure, the present invention is a light projection structure 1, which includes a main light device 2 and an auxiliary light device 3. The auxiliary light device 3 is arranged on one side of the main light device 2 .

Please continue to refer to the second Figure A, which is an exploded schematic view of the main lamp device according to a preferred embodiment of the present invention, and the second Figure B, which is a cross-sectional schematic diagram of the main lamp device according to a preferred embodiment of the present invention , as shown in the figure, the main lamp device 2 includes a first light emitting module 22 , a first light deflection device 24 , a first light shape conversion device 26 and a first lens device 28 .

The first light deflecting device 24 is disposed below the first light emitting module 22 . To further illustrate, the first light deflecting device 24 is disposed on the light emitting path of the first light emitting module 22 . The first light The shape conversion device 26 is arranged on one side of the first light deflection device 24 and is arranged below the first light-emitting module 22 . Further description, the first lens device 28 is arranged on the first light shape conversion device 26 A first light-emitting side 262 is provided, and the first light-emitting module 22 is a structure for emitting downward light, and the first light deflection device 24 is disposed obliquely corresponding to the first light-emitting module 22 .

Please continue to refer to the second picture B and the second picture C. The second picture C is a schematic side view of the main lamp device according to a preferred embodiment of the present invention. As shown in the figure, when the first light-emitting module 22 emits light A first light L1, the first light L1 will be projected on the first light deflection device 24, and reflected by the first light deflection device 24, the first light L1 will be reflected by the first light deflection device 24, the first light deflection A light beam L1 is projected onto the first light shape conversion device 26 and reflected as a pixel array light beam L12 , which passes through the second lens device 28 , the pixel array light beam L12 is projected through the first lens device 28 , and the pixel array light beam L12 is projected through the first lens device 28 . A first light pattern 29 is projected through the first lens device 28 .

The main light device 2 emits the first light L1, converts it into the pixel array light L12, and projects the first light pattern 29, wherein the first light pattern 29 is a dynamic pattern, wherein the The first light shape conversion device 26 in the main lamp device 2 is a digital micromirror device (Digital Micromirror Device, DMD). ), each micro mirror controls a pixel in the projection screen, and can control the shape of the first light pattern 29 to make it a dynamic pattern.

Please continue to refer to the second figure A to the second figure C to describe the connection relationship of the components in the main lamp device 2 in more detail. The main lamp device 2 further includes a first base 21, the first light shape conversion device 26 is disposed on the first base 21, the first light-emitting module 22 further includes a first substrate 222 and at least one first light-emitting unit 224, the first substrate 222 is disposed above the first base 21, The at least one first light emitting unit 224 is disposed under the first substrate 222 and emits light downward, wherein the at least one first light emitting unit 224 is a light emitting diode (LED), and the first light deflection device 24 and the first lens device 28 are respectively disposed at the front end of the first base 21 . Further description, the first lens device 28 includes a first hollow shell 282 and at least one first lens 284 , the The first hollow shell 282 is disposed at the front end of the first base 21 , that is, one end of the first hollow shell 282 is disposed at the front end of the first base 31 , and the first light deflection device 24 is disposed In the first hollow casing 282, the at least one first lens 284 is disposed inside the front end of the first hollow casing 282. Further, the at least one first lens 284 is disposed opposite to the first hollow casing 282. One end of a hollow shell 282 is disposed on the other end of the front end of the first base 21 , wherein a fan 212 is disposed on one side of the first base 21 to enhance the heat dissipation of the first base 21 .

Please continue to refer to Figure 3 A, which is a three-dimensional schematic diagram of an auxiliary light device according to a preferred embodiment of the present invention, and Figure 3 B, which is an exploded perspective view of an auxiliary light device according to a preferred embodiment of the present invention, As shown in the figure, the auxiliary lamp device 3 includes a second light emitting module 32 , a second light deflection device 34 , a second light shape conversion device 36 and a second lens device 38 .

The second light deflecting device 34 is disposed on one side of the second light emitting module 32 . Further description, the second light deflecting device 34 is shielded from the light emitting path of the second light emitting module 32 . The light-shape converting device 36 includes a digital micromirror element 361 and a fixing portion 362, the digital micromirror element 361 is disposed above the fixing portion 362, and is the above-mentioned digital micromirror element (Digital Micromirror Device, DMD), The fixing portion 362 is disposed at the front end below the second light deflecting device 34 , and two ends of the fixing portion 362 are respectively extended downward with a first shading portion 364 and a second shading portion 366 . The first light shielding portion 364 and the second light shielding portion 366 are respectively disposed at two ends of the portion 362 downward and extending to two sides. The second lens device 38 is disposed on a second light emitting side 368 of the deflection device 36 .

Please continue to refer to the third figure C, which is a schematic cross-sectional view of an auxiliary lamp device according to a preferred embodiment of the present invention. As shown in the figure, when the second light-emitting module 32 emits a second light L2, the second The light beam L2 will be projected to the second light deflection device 34 and reflected by the second light deflection device 34 , part of the second light beam L2 will be reflected by the second light deflection device 34 through the second lens device 38 , and another part The second light beam L2 is reflected to the second light shape converting device 36 through the second light deflection device 34 , and part of the second light beam L2 is projected through the second lens device 38 .

Please continue to refer to the third A to the third C and the third D, which are schematic diagrams of the light pattern of the main light device combined with the auxiliary light device according to a preferred embodiment of the present invention. The second light L2 projects a second light pattern 39 through the second lens device 38 . The second light pattern 39 includes a notch portion 392 , and the notch portion 392 corresponds to the fixing portion 362 , that is, , the shape or area of the notch portion 392 will change with the shape or area of the fixing portion 362 , and the first light pattern 29 is projected on the notch portion 392 .

Please continue to refer to Figures 3A to 3C for a more detailed description of the connection relationship of the components in the auxiliary light device 3 . The auxiliary light device 3 further includes a second base 31 , and the second light-emitting module 32 And the second light deflection device 34 is respectively disposed on the second base 31, and the second light deflection device 34 covers/shields the second light emitting module 32, and the second light emitting module 32 further includes a The second substrate 322 and at least one second light-emitting unit 324, the second substrate 322 is disposed on the second base 31, the at least one second light-emitting unit 324 is disposed on the second substrate 322, the second The light deflection device 34 is disposed on the second base 31 and covers the at least one second light emitting unit 324, wherein the at least one second light emitting unit 324 is a light emitting diode (LED), and the second light The shape conversion device 36 and the second lens device 38 are respectively disposed at the front end of the second base 31 , and to further illustrate, the second lens device 38 includes a second hollow shell 382 and a second lens 384 , The second hollow shell 382 is disposed at the front end of the second base 31 , that is, one end of the second hollow shell 382 is disposed at the front end of the second base 31 . The second light shape conversion device 36 is disposed in the second hollow shell 382, and the second lens 384 is disposed in the front end of the second hollow shell 382. Further description, the second lens 384 is disposed opposite to the second hollow shell 382. One end of the hollow shell 382 is disposed on the other end of the front end of the second base 31 .

In addition, a first groove 385 and a second groove 386 are further formed on the second hollow shell 382, and the first groove 385 and the second groove 386 are disposed in the second hollow shell On the two sides of the body 382 , the first groove 385 and the second groove 386 correspond to a first extending portion 3642 on one side of the first light shielding portion 364 and a second portion on one side of the second light shielding portion 366 respectively. The extension part 3662, when the second hollow shell 382 is disposed at the front end of the second base 31, the first extension part 3642 and the second extension part 3662 are respectively disposed in the first groove 385 and the second In the groove 386, it can prevent the occurrence of light leakage. Further, in order to effectively fix the first light shielding portion 364 and the second light shielding portion 366, one side of the first extending portion 3642 can be disposed in the first groove. 385 side, the second extension part 3662 side is arranged on the second groove 386 side, when the auxiliary light device 3 is subjected to severe vibration, it can prevent the second light shape conversion device 36 from falling off occur.

Please continue to refer to the fourth figure, which is a schematic side view of the second light shape conversion device according to a preferred embodiment of the present invention. As shown in the figure, the fixing portion 362 is higher than the first light shielding portion 364 and the first light shielding portion 364. Two light-shielding portions 366, and the heights of the first light-shielding portion 364 and the second light-shielding portion 366 are parallel to each other, the top surface of the fixing portion 362 is inclined to the first light-shielding portion 364 and the second light-shielding portion 366, and An inclination angle R of the fixing portion 362 relative to the first shading portion 364 and the second shading portion 366 is between 10 and 30 degrees. The inclination angle R is in order to save the area of the fixing portion 362 and is effective The notch portion 392 is formed on the second light pattern 39 .

Please continue to refer to the third and fourth figures. As shown in the figures, the two arcs on the second light pattern 39 are a first arc 394 and a second arc 396, because part of the second arc The light L2 is reflected by the second light deflection device 34 and passed through the second lens device 38, and another part of the second light L2 is reflected on the second light shape conversion device 36 by the second light deflection device 34, and is not reflected to the second light shape conversion device 36. Part of the second light beam L2 of the second light deflection device 34 will form the second light pattern 39, and the first arc edge 394 and the second arc edge 396 on the second light pattern 39 are respectively The shapes of the first light shielding portion 364 and the second light shielding portion 366 are corresponding.

To sum up, in the light projection structure of the present invention, the auxiliary light device is disposed on one side of the main light device, and when a first light-emitting module in the main light device emits a first light to a first light A light deflection device is reflected, wherein the second light is reflected to a first light shape conversion device to form a pixel array light, and the pixel array light will project a first light shape pattern through a first lens device , and when the second light-emitting module in the auxiliary light device emits the second light to the second light deflection device for reflection, the reflected part of the second light will be projected out of the second light through the second lens device Two light-shaped patterns, and another part of the second light will be projected on the second light-shaped conversion device, and the second light-shaped pattern includes the notch part, and the first light-shaped pattern projected by the main lamp device is By projecting on the notch, the main light device combined with the auxiliary light device can increase the range of projected light, generate a more uniform light pattern, and improve the light irradiation area.

However, the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. All changes and modifications made in accordance with the shape, structure, features and spirit described in the scope of the patent application of the present invention are equivalent. , shall be included in the scope of the patent application of the present invention.

1: Light projection structure 2: Main light device 21: The first pedestal 212: Fan 22: The first light-emitting module 222: First substrate 224: The first light-emitting unit 24: The first light deflection device 26: The first light shape conversion device 262: The first light-emitting side 28: First lens device 282: The first hollow shell 284: First Lens 29: The first light pattern 3: Auxiliary light device 31: Second base 32: The second light-emitting module 322: Second substrate 324: The second light-emitting unit 34: Second light deflection device 36: Second light shape conversion device 361: Digital Micromirror Components 362: Fixed part 364: The first shade 3642: First Extension 366: Second shade 3662: Second Extension 368: The second light-emitting side 38: Second lens device 382: Second hollow shell 384: Second Lens 385: First groove 386: Second groove 39: Second Light Pattern 392: Notch L1: first ray L12: Pixel Array Light L2: second ray R: tilt angle

Figure 1: It is a three-dimensional schematic diagram of a preferred embodiment of the present invention; Second Figure A: It is an exploded schematic diagram of the main lamp device according to a preferred embodiment of the present invention; Second Figure B: It is a schematic cross-sectional view of the main lamp device according to a preferred embodiment of the present invention; Second Figure C: It is a schematic side view of the main lamp device according to a preferred embodiment of the present invention; Figure 3 A: It is a three-dimensional schematic diagram of an auxiliary light device according to a preferred embodiment of the present invention; Figure 3 B: It is a perspective exploded schematic diagram of an auxiliary light device according to a preferred embodiment of the present invention; The third figure C: it is a cross-sectional schematic diagram of an auxiliary light device according to a preferred embodiment of the present invention; Figure 3 D: it is a schematic diagram of the light pattern of the main light device combined with the auxiliary light device according to a preferred embodiment of the present invention; and Figure 4: It is a schematic side view of the second light shape conversion device according to a preferred embodiment of the present invention.

1: Light projection structure

2: Main light device

3: Auxiliary light device

Claims (10)

A light casting structure comprising: a main light device that projects a first light pattern; and An auxiliary light device, which is arranged on one side of the main light device, and the auxiliary light device includes: a second light-emitting module, the second light-emitting module emits a second light; a second light deflecting device disposed on one side of the second light-emitting module, the second light is projected to the second light deflecting device, and reflected by the second light deflecting device; and a second lens device disposed on a second light-emitting side of the second light deflecting device, part of the second light is reflected through the second lens device by the second light deflecting device, and another part of the second light is reflected on the second light shape conversion device through the second light deflection device, and the second light shape pattern is projected on the second lens device; Wherein, the second light pattern includes a notch portion, and the first light pattern is projected on the notch portion. The light projection structure as described in claim 1, wherein the main lamp device comprises: a first light-emitting module, the first light-emitting module emits a first light; a first light deflecting device, which is disposed below the first light-emitting module, the first light is projected to the first light deflecting device, and is reflected by the first light deflecting device; A first light shape conversion device, which is disposed on one side of the first light deflection device, the first light shape conversion device is disposed under the first light-emitting module, and the first light is projected to the first light shape conversion device, and reflect light into a pixel array; and a first lens device disposed on a first light-emitting side of the first light shape conversion device, the pixel array light passes through the first lens device, and the first light shape pattern is projected on the first lens device . The light projection structure of claim 2, wherein the first light shape conversion device is a digital micromirror device (DMD), and the first light shape conversion device controls the first light shape pattern , to make it a dynamic pattern. According to the light projection structure described in claim 2, a first base is further provided, the first light shape conversion device is disposed on one side of the first base, and the first light deflection device and the The first lens devices are respectively arranged at the front end of the first base. The light projection structure as claimed in claim 2, wherein the first lens device comprises a first hollow casing and at least one first lens, and the first hollow casing is disposed at the front end of the first base , and the first light deflection device is arranged in the first hollow casing, and the at least one first lens is arranged at the front end of the first hollow casing. The light projection structure of claim 1, wherein an inclination angle of the fixing portion relative to the first light shielding portion and the second light shielding portion is between 10 and 30 degrees. According to the light projection structure described in claim 1, a second base is further provided, the second light-emitting module and the second light deflection device are respectively disposed on the second base, and the first base Two light deflection devices cover the second light-emitting module, and the second light shape conversion device and the second lens device are respectively disposed at the front end of the second base. The light projection structure of claim 1, wherein the second lens device comprises a second hollow shell and a second lens, the second hollow shell system is disposed at the front end of the second base, And the second light shape conversion device is arranged in the second hollow shell, and the second lens is arranged at the front end of the second hollow shell, the second lens device is further provided with a first groove and A second groove is formed on the second hollow shell, and the first groove corresponds to the first shading portion, the second groove corresponds to the second shading portion, and one side of the first shading portion is arranged in the first groove, and one side of the second light-shielding portion is arranged in the second groove. The light projection structure according to claim 1, wherein the two arcs on the second light pattern correspond to a first arc edge of the first shading portion and a second arc of the second shading portion respectively arc edge. The light projection structure according to claim 9, wherein the notch portion is disposed between the two arcs.

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