TWI762405B - Bi-optical module for automotive lamps - Google Patents

Abstract

The invention relates to a dual light-shaped module for vehicle lamps, comprising a first lens, at least a second lens, a first illuminator, and at least a second illuminator, and a first light incident surface is arranged behind the first lens , the front has a first light emitting surface, the center of the first light emitting surface has a central portion, the left and right sides of the central portion have rearward side portions; and the at least one second lens is arranged behind the first lens and opposite to the It should be located at least on one side of the rear, with a second light-incident surface at the back and a second light-emitting surface at the front; and the first illuminator is arranged behind the first lens and corresponding to the rear of the central part, and makes the first light-emitting body The light emitted by the light-emitting body can be emitted from the side of the second lens and is transmitted through the first lens to form a first light shape; and the at least one second light-emitting body is arranged behind the second lens and makes the second light-emitting body emit light. The light passes through the second lens and then emerges from the first lens to form a second light shape; thereby, the present invention can output a stable light shape and has better installation applicability.

Description

Bi-optical module for automotive lamps

The present invention relates to a dual-light-shaped module for vehicle lamps, mainly referring to a module that can output stable light shapes and has better installation applicability.

Conventional headlights are designed to switch between far and near projection angles according to different road conditions and visual requirements. The headlights have several different design types, such as TWI333040 car lamps with one illuminator, two shading units, and one driver. unit and a reflector, the shading unit is arranged in front of the reflector and the illuminator, and is driven by the solenoid valve of the driving unit to open and close, so that when the shading unit is opened, the light emitted by the illuminator can be reflected and transmitted through the reflector to present The high light function also enables the driving unit to block part of the light by the light blocking unit when the driving unit closes the action of the light blocking unit, so that the light is deflected to the low light downward.

However, the aforementioned structure switched by mechanical action may be damaged due to mechanical wear after a period of use, and the actuating position of the shading unit may be deviated, resulting in reduced reliability and loss of output light shape change.

Another example is TWI605222, a first light-emitting module, a first reflector, a second light-emitting module, a second reflector, a light-shielding body, and a lens. The first light-emitting module and the first reflector The second light-emitting module and the second reflector are set in front of the car light, and the shading body is set in front of the first light-emitting module, and the lens is set at the front end of the car light, so that the first light-emitting module The light emitted by the group can be reflected by the first reflector and transmitted through the lens to form a low light shape; the light shielding body can form a cut-off line of light and dark, and the light emitted by the second light-emitting module can be reflected by the second reflector and then transmitted through the lens. Form a high beam shape.

The aforementioned structure does not require a mechanically actuated shading plate, which can reduce the occurrence of mechanical failures and changes in the output light shape. However, the arrangement of the first and second reflectors of the vehicle lamp from the rear and the front will greatly increase the front and rear longitudinal lengths of the vehicle lamp. , which will increase the installation depth and disadvantageous configuration, and the first and second reflectors are generally formed of plastic, which is easy to cause deformation of the curvature of the first and second reflectors due to thermal expansion and contraction during the molding process, and will reduce the reflection output accuracy. And the output light shape has errors and missing.

No. TWI582336 vehicle lamp has a light-emitting unit, a first lens, and a second lens, the first lens is located in front of the light-emitting unit, and the second lens is located in front of the first lens, and the position can be changed, so that the second lens is located in When the light of the light-emitting unit is in the low-light position, the light of the light-emitting unit can pass through the lens to generate the low-light shape, and when the second lens is displaced to the front of the first lens, the light of the light-emitting unit can pass through the first and second lenses to produce the high-light shape.

The aforementioned structure does not need to use a reflector, which can reduce the length of the front and rear depths of the lamp, and can avoid the deformation error of the reflector. However, the second lens must be mechanically displaced, which may still cause mechanical loss and failure. When the two lenses cannot be accurately moved to the set position, the output light shape error will still be missing.

The object of the present invention is to provide a vehicle lamp which can output stable light shape and can reduce the longitudinal length of the vehicle lamp at the front and the rear so as to have better installation applicability.

The present invention includes a first lens, at least a second lens, a first luminous body, and at least a second luminous body. The first lens has a first light incident surface at the back and a front surface opposite to the first light incident surface. A first light-emitting surface protruding forward, the center of the first light-emitting surface has a curved central portion, and the left and right sides of the central portion respectively have a curved side portion facing the rear; and the at least one second lens is arranged on the central portion. The rear of the first lens and the rear of the corresponding at least one side The rear has a second light incident surface, and the front has a second light emitting surface opposite to the second light incident surface and protruding from a curved surface to the front; and the first light-emitting body is arranged behind the first lens and corresponding to the center the rear position, so that the light emitted by the first light-emitting body can be emitted from the side of the second lens and directly through the first lens to form a first light shape; and the at least one second light-emitting body is arranged on the second lens Behind the lens, the light emitted by the second light-emitting body is corrected and condensed through the second lens, and then emerges from the side of the first lens to form a second light shape.

In an embodiment of the present invention, the curvature of the side portion of the first lens is smaller than the curvature of the central portion.

In an embodiment of the present invention, two second lenses are disposed side by side at the rear of the first lens, and each second lens is located at a position corresponding to the rear of the side, so that the two second lenses are laterally There are spaced areas, and the light emitted by the first light-emitting body can be emitted by the side spaced areas of the two second lenses and transmitted through the first lens, and there are two second light-emitting bodies and are respectively arranged in one of the first lenses. Behind the two lenses, the light emitted by the two second illuminators passes through a corresponding one of the second lenses respectively, and then passes through the first lens.

The present invention does not need to install a reflector and adopts a reflector to reflect light, which can greatly reduce the front and rear depth lengths of the lamp, and the small length can be easily installed on the vehicle body, and has better installation applicability.

In the present invention, when the first luminous body emits light, the emitted light can be transmitted through the first light-emitting surface, which can present a diffused first light shape, and the present invention makes the first luminous body do not emit light and makes the second luminous body emit light. The light emitted by the two illuminants can enter the second lens through the second light incident surface, and then corrected and concentrated by the second lens and then projected from the second light emitting surface, so that the light projected from the first light emitting surface can be concentrated to form the second light emitting surface. However, the positions of the first, second lenses, and the first and second light-emitting bodies of the present invention are fixed, and the first and second lenses are not easily deformed as in the conventional reflector, so that the present invention can have better accuracy Output light shape.

1: The first lens

11: The first light incident surface

12: The first light-emitting surface

13: Central Department

14: Side

2: Second lens

21: The second light incident surface

22: The second light-emitting surface

23: Spacer

3: The first luminous body

4: The second illuminator

5: circuit board

6: The first light shape

7: The second light shape

Figure 1 is a schematic perspective view of the present invention.

Figure 2 is a cross-sectional view of the present invention.

FIG. 3 is a schematic diagram of the first light shape of the present invention.

FIG. 4 is a schematic diagram of the second light shape of the present invention.

Please refer to FIGS. 1 and 2 , the present invention includes a first lens 1 , two second lenses 2 , a first illuminator 3 , and two second illuminators 4 . The first lens 1 has a first light incident surface 11 behind it. , the front has a first light-emitting surface 12 opposite to the first light-incident surface 11 and protruding forward, the first light-incident surface 11 is a plane, and the center of the first light-emitting surface 12 has a curved central portion 13, the center The left and right sides of the portion 13 are provided with side portions 14 whose curvature is smaller than that of the central portion 13 toward the rear.

Two second lenses 2 are disposed at the rear of the first lens 1, and each second lens 2 is respectively located at the rear of the corresponding side portion 14, and the two second lenses 2 have a spacer 23 between the sides, and the first The volume of the second lens 2 is smaller than that of the first lens 1, the rear has a second light incident surface 21, the front has a second light emitting surface 22 opposite to the second light incident surface 21, and the second light emitting surface 22 has a curved surface protruding forward .

The first light-emitting body 3 can be an LED disposed behind the first lens 1 and at a position corresponding to the rear of the central portion 13 , so that the light emitted by the first light-emitting body 3 can be emitted by the side partitions 23 of the two second lenses 2 and emitted. The first light shape 6 as shown in FIG. 3 is formed through the first lens 1 .

The two second illuminators 4 are LEDs respectively disposed behind a corresponding second lens 2 , and the light emitted by the second illuminator 4 passes through the corresponding second lens 2 and then emerges from the first lens 1 , as shown in FIG. 4 . The second light shape 7.

The first and second light-emitting bodies 3 and 4 of the present invention are arranged on the same circuit board 5, and the relative positions of the first and second light-emitting bodies 3 and 4 are fixed, and the first and second lenses 1 and 2 are located corresponding to the first and second light-emitting bodies 3 and 4. The two light-emitting bodies 3 and 4 are fixed in front, and the present invention does not need to provide a reflector and adopts a reflector to reflect light, which can greatly reduce the front and rear depths of the lamp. Best installation suitability.

Please refer to FIG. 3 , when the first light-emitting body 3 emits light, the light emitted by the first light-emitting body 3 can be directly projected to the first light incident surface 11 of the first lens 1 through the spacer 23 on the side of the second lens 2 in a radial shape, and then passed through the second lens 2. A light-emitting surface 12 is emitted, so that the incident rays from the two sides of the first light-incident surface 11 can have a larger first incident angle θ1, and the light rays entering the first lens 1 from the two sides can cooperate with the curvature of the side portion 14 to be larger than the center The curvature setting surface of the portion 13 reduces refraction and is transmitted through the first light emitting surface 12, so it can present a first light shape 6 that diffuses to both sides, and when the present invention is implemented as a vehicle headlight, the first light shape 6 can be Near light shape.

Please refer to FIG. 4 , in the present invention, when the first light-emitting body 3 does not emit light and the second light-emitting body 4 emits light, the light emitted by the second light-emitting body 4 can enter the second lens 2 through the second light incident surface 21 , and then the second light-emitting body 4 emits light. The lens 2 corrects and condenses the light and then projects it from the side of the second light emitting surface 22, so that the second incident angle θ2 projected from the side of the second light emitting surface 22 to the first light incident surface 11 is smaller than the first incident angle in FIG. 3 θ1, the light projected by the first light emitting surface 12 can be concentrated to form the second light shape 7, and when the present invention is implemented as a vehicle headlight, the second light shape 7 can be a high beam shape.

The positions of the first and second lenses 1, 2, and the first and second light-emitting bodies 3, 4 of the present invention are fixed, and the first and second lenses 1, 2 are not easily deformed as in the conventional reflector, so the present invention It can have a better and precise output light shape, and because the length of the vehicle lamp is short, the present invention can be easily installed in the non-headlight position of the vehicle body. The fog lamp of the first light shape 6 with a larger projection range, and the second illuminator 4 can be connected to the vehicle body direction light circuit (not shown) to form a direction light that can project the second light shape 7 in a concentrated manner, which can improve the present invention Better usability.

Therefore, from the above, the present invention is a brand-new type of vehicle lamp, which can reduce the front and rear lengths of the vehicle lamp, and has the effect of better output light shape accuracy, and the first lens of the present invention is not provided with side parts When the curvature is smaller than the central curvature, the first and second light shapes with different output ranges can also be generated by the first and second incident angles. The foregoing embodiment is an example of the present invention, not a limitation of the present invention. Anything done according to the spirit of the present invention Equivalent changes should also fall within the design scope of the present invention.

1: The first lens

11: The first light incident surface

12: The first light-emitting surface

13: Central Department

14: Side

2: Second lens

21: The second light incident surface

22: The second light-emitting surface

23: Spacer

3: The first luminous body

4: The second illuminator

5: circuit board

Claims (4)

A dual light-shaped module for a vehicle lamp, comprising: a first lens, a first light incident surface at the rear, a first light emitting surface opposite to the first light incident surface and protruding forward, the first light emitting surface The center of the surface has a curved central portion, and the left and right sides of the central portion respectively have a curved side portion facing the rear, and the curvature of the side portion is smaller than the curvature of the central portion; at least one second lens is arranged behind the first lens and Corresponding to the rear position of at least one side, the rear has a second light incident surface, and the front is opposite to the second light incident surface and has a second light emitting surface protruding from a curved front; a first illuminator is arranged on the first light The rear of the lens and the position corresponding to the rear of the central part, so that the light emitted by the first illuminator can be emitted from the side of the second lens and directly through the first lens to form a first light shape with two sides diffused; at least one The second light-emitting body is arranged behind the second lens, and the light emitted by the second light-emitting body is corrected and condensed through the second lens, and then emerges from the side of the first lens to form a second light shape. The dual light-shaped module for a vehicle lamp as claimed in claim 1, wherein the first light incident surface is a plane. The vehicle lamp bifocal module as claimed in claim 1, wherein two second lenses are disposed at the rear of the first lens, and each second lens is located at a position corresponding to the rear of the side. , and make a spacer area between the sides of the two second lenses, and the light emitted by the first illuminator can be emitted by the side spacer areas of the two second lenses and transmitted through the first lens, and the second illuminator are two and are respectively arranged behind the second lens square, and make the light emitted by the two second illuminators pass through a corresponding second lens respectively and then pass through the first lens. The dual-light module for vehicle lamps as claimed in claim 3, further comprising a circuit board, and the first illuminator and the second illuminator are fixed on the same circuit board.

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