TWM576976U - Blind spot warning lighting device for vehicle rearview mirror - Google Patents

Abstract

A blind spot warning lighting device for a vehicle rearview mirror, comprising: a light guiding member, a cover and an LED lamp in the cover, the light guiding member comprising a light incident surface and adjacent to the light incident surface side a light-emitting surface, a plurality of concave arc grooves are formed on the light-incident surface, and an opposite surface of the light-emitting surface forms an active surface, the active surface includes a plurality of reflective surfaces, the light guiding member is disposed in the cover, and the LED light is aligned with the light entering the light guiding member surface. When the blind spot on the vehicle side senses that the vehicle enters, the LED light is driven to emit light, and the emitted light is diffused through the concave arc groove at the light incident surface, and the light is diffused uniformly through the reflection of the plurality of reflective surfaces. The shot is emitted so that the driver can visually receive a uniform bright but not glare warning light to achieve a better warning effect on the side of the car.

Description

Blind area warning lighting device for vehicle rearview mirror

The present invention relates to a blind spot warning lighting device for a vehicle rearview mirror, and more particularly to a warning light disposed in a vehicle rearview mirror to provide a uniform and bright warning light to remind the driver of the vehicle to enter the blind spot. Device.

The rearview mirrors installed on the two sides of the vehicle can be used to observe the condition of the road behind the vehicle side, and allow the driver to predict whether there is an incoming vehicle behind the vehicle side, so that it can be prepared and ready before changing lanes. reaction. However, since the rearview mirror of the vehicle has a blind area that cannot be seen on the rear side of the vehicle, the industry has developed a blind zone warning light-emitting device installed in the casing of the vehicle rearview mirror, and the blind zone warning light-emitting device and the vehicle second The sensor provided on the side is electrically connected, so that when the vehicle enters the blind area behind the two sides of the vehicle, the sensor can drive the blind spot to alert the LED light in the illumination device to emit light. And emit light through the light transmission interval of the lens, and can remind the driver to be alert to avoid a collision accident with the vehicle behind the vehicle when changing lanes or turning in an uninformed situation.

The above-mentioned blind spot warning light source is disposed in the rear view mirror of the vehicle. Although the driver can change whether the LED light of the rear view mirror is illuminated or not, the driver can determine whether there is a vehicle entering in the blind side of the vehicle side. The driver can be alert and prepared in time. However, the light emitted by the LED lamp is very glaring from the point source light emitted by the line, especially in the night environment, the pupil of the eye is enlarged, and the light directly emitted by the LED lamp, if not homogenized, suddenly stimulates the driver's eyes. In this case, the driver may be nervous, and the steering wheel of the reflective action is so easy to lead to the loss of control of the vehicle and an unexpected traffic accident. For example, in order to homogenize the light emitted from the LED lamp, the diffusing agent is incorporated into the warning light-emitting device, which will greatly increase the manufacturing cost. For this reason, LED lights are currently used as warning light sources for blind spots on the vehicle side. There are still problems such as excessive glare of LED lighting lines or increased manufacturing costs for uniformizing light processing, which is subject to research and innovation in the industry.

The present invention provides a blind spot warning lighting device for a vehicle rearview mirror, which is disposed in a vehicle rearview mirror and includes a light guiding member including a light emitting surface spaced apart in a front-rear direction and non-parallel An incident surface of the light-emitting surface, and a light-incident surface and a terminal surface spaced apart along a longitudinal direction, the light-incident surface and the end surface are respectively adjacent to the light-emitting surface and the active surface, and the light-incident surface The length dimension formed by the front-rear direction is larger than the length dimension formed by the end surface in the front-rear direction, and the light-incident surface forms a plurality of concave arc grooves, the action surface includes a plurality of concave portions, and the plurality of concave portions define a plurality of reflective surfaces Forming an acute angle between the plurality of reflective surfaces and the light-emitting surface, and comprising a cover, the cover cover is disposed around the light guide member, the cover cover includes a first surface spaced apart in the front-rear direction and a first surface a second surface, an outer peripheral surface is formed between the first surface and the second surface, a cavity is recessed into the first surface, the light guiding member is disposed in the chamber, and a light emitting surface of the light guiding member is aligned with the vehicle a light transmission interval provided on one lens side of the rear view mirror And comprising a circuit board mounted in a chamber of the cover, the circuit board comprising an LED lamp electrically connected, the LED lamp being aligned with the light incident surface of the light guide member, when the LED light is When the light is emitted by the driving, the emitted light is first diffused through the concave arc groove of the light incident surface, and then reflected by the plurality of reflective surfaces to uniformly emit light toward the light emitting surface.

The feature of the creation is that the light emitted by the LED lamp is first diffused through the concave arc groove of the light incident surface of the light guide member, and then reflected by the reflective surfaces of the plurality of reflective surfaces, so that the blind zone warning light emitting device can be in the vehicle. A uniform and bright warning light is generated at the rear view mirror, thereby preventing the light source of the LED light from irritating the driver's eyes too strongly. Moreover, the light emitted by the LED lamp is diffused by the concave arc groove of the light incident surface, and by the reflection of the plurality of reflective surfaces of the light guide member, the diffusion agent can be added without increasing the manufacturing cost. Under the premise, it can provide the warning effect of the driver's uniform and bright visible light.

The creation of the present invention will be more clearly understood by the detailed description of the illustrative embodiment of the present invention.

Referring to Figures 1 through 6, the blind zone warning lighting device 32 for vehicle rearview mirrors is mounted in a lens holder 22 of the lens assembly 20 of a vehicle rearview mirror 10. The rear view mirror 10 further includes a housing 94 having an opening 96 and an accommodating space 98 recessed into the housing 94 by the opening 96. The lens holder 22 includes a first surface 24 and a second surface 26 spaced apart from each other. The lens holder 22 has a positioning area 27, and a window penetrating the first surface 24 and the second surface 26 is formed in the positioning area 27. 28, the window 28 provides a blind spot warning illumination device 32 disposed therein. The lens assembly 20 further includes a lens 29 having a light transmissive section 30. The lens 29 is adhered to the second side 26 of the lens holder 22 by an adhesive layer 115 (as shown in FIG. 5). And the light transmissive section 30 is aligned with the window 28. The lens assembly 20 is mounted in the housing 94 and is inserted into the housing 94 with the first face 24 facing the opening 96 of the housing 94 for engagement in the receiving space 98 of the housing 94.

As shown in FIG. 1 and FIG. 2 , the artificial blind zone warning light emitting device 32 includes a light guiding member 34 made of a light transmissive material and a cover 72 covering the light guiding member 34 , and A circuit board 68 is disposed in the cover 72. The circuit board 68 is electrically connected to an LED lamp 70. Moreover, the translucent material used in the manufacture of the light guide member 34 includes: polycarbonate (polycarbonate, PC for short), polymethyl methacrylate (PMMA), polystyrene (PS). ), etc., but the materials are not limited to these three.

Referring to Figures 2 and 3, the light guide member 34 includes a light exit surface 36 spaced apart in a front-rear direction and an active surface 54 non-parallel to the light exit surface 36, and includes a longitudinal direction. a light incident surface 40 and a rear end surface 46, and a first side surface 48 and a second side surface 50 spaced apart in a lateral direction perpendicular to the longitudinal direction and perpendicular to the front and rear direction. The light incident surface 40 and the end surface 46 are adjacent to the light emitting surface 36 and the active surface 54 respectively. The first side surface 48 and the second side surface 50 are respectively adjacent to the light-emitting surface 36, the active surface 54, the light-incident surface 40 and the end surface 46. The peripheral edge of the light-emitting surface 36 of the light guide member 34 forms a positioning portion 38, and A beveled section 66 is formed between the first side surface 48 and the terminal end surface 46. Further, the length dimension of the light incident surface 40 formed in the front-rear direction is larger than the length dimension formed by the terminal surface 46 in the front-rear direction. The action surface 54 is gradually inclined toward the light exit surface 36 in the longitudinal direction from the side of the light incident surface 40. Therefore, if viewed from the side (as shown in FIG. 3), the light guide member 34 is substantially wedge-shaped.

As shown in FIG. 2 and FIG. 3, a plurality of concave arc grooves 42 are formed on the light incident surface 40 of the light guiding member 34, and one side edge 44 is formed on each of the two concave arc grooves 42, and any concave arc groove is formed. The two side edges 44 of the 42 overlap and overlap with one side edge 44 of any adjacent concave arc groove 42. Moreover, the width dimension between the two side edges 44 of any of the concave arc grooves 42 ranges from 0.5 mm to 2 mm. And, the depth of any concave arc groove 42 from the deepest end to the light entrance surface 40 ranges from 0.5 mm to 2 mm.

As shown in FIGS. 2 and 3, the active surface 54 of the light guide member 34 includes a plurality of recesses 62 extending from the sides of the first side surface 48 to the sides of the second side surface 50, defined by the plurality of recesses 62. A plurality of reflective surfaces 58 extending from the side of the first side surface 48 to the side of the second side surface 50 form an acute angle A between the plurality of reflective surfaces 58 and the light exit surface 36. In general, the acute angle A ranges from 2645. The acute angle A formed between the plurality of reflective surfaces 58 and the light exit surface 36 of the light guide member 34 ranges from 3140 to an acute angle A of 31, and the acute angle A increases by 0.51A. The acute angle A between the last reflective surface 58 of the terminal surface 46 and the light exit surface 36 is 40.

As shown in FIG. 2, the present cover 72 is a non-transparent housing including a first surface 74 and a second surface 76 spaced apart in the front-rear direction, and the first and second surfaces 74, 76 An outer peripheral surface 78 is formed therebetween. The outer peripheral surface 78 of the cover 72 is the same shape as the window 28 of the lens holder 22. A chamber 80 is recessed into the first surface 74. The chamber 80 includes a bottom surface 84 and an inner circumferential surface 82 around the bottom surface 84. The inner circumferential surface 82 includes a surface portion 88 including a first surface 74 and A recessed groove 86 is formed between the inner peripheral surfaces 82, and the bottom surface 84 is subjected to atomization treatment. A through hole 90 extends through the outer peripheral surface 78 and the inner peripheral surface 82 to communicate with the chamber 80. The chamber 80 is provided with an engaging groove 92 adjacent to the position of the through hole 90.

As shown in FIG. 2, FIG. 5 and FIG. 6, the circuit board 68 of the artificial blind zone warning light-emitting device 32 is electrically connected to the inductor provided on the side of the vehicle. The circuit board 68 includes an LED lamp 70 that is electrically connected. The optical axis 71 (the center line of the light beam) from which the LED lamp 70 emits light has directivity. In accordance with the definition of Beam angle by the International Commission on Illumination (CIE) of this creation, the beam angle of the LED lamp 70 selected for this creation is approximately 10120 LED lamp 70 beam angle range is 4080 LED The beam angle of the lamp 70 is 60 ± 10.

Referring to FIG. 5, FIG. 6 and FIG. 7, the combination application of the present invention is to place the side of the circuit board 68 in the engaging groove 92 of the cover 72, and to align the LED lamp 70 with the light guide. The light entrance surface 40 of 34. The optical axis 71 from which the LED lamp 70 emits light is linearly extended in the longitudinal direction from the light incident surface 40. The illumination range of the light emitted by the LED lamp 70 can cover one or a plurality of concave arc grooves 42. The cover 72 is disposed around the light guide 34, so that the light guide 34 extends into the chamber 80 of the cover 72, and the positioning portion 38 of the light guide 34 is placed in the recess 86. And, the beveled section 66 of the light guide 34 is aligned with the facet section 88 of the cover 72. Then, the light-emitting surface 36 of the light guide member 34 is placed toward the window 28 of the lens holder 22, so that the outer peripheral surface 78 of the cover 72 is forced into the window 28 of the lens holder 22, and the perforation 90 of the cover 72 is partially Exposed to the outside of the window 28, the inductor disposed on one side of the vehicle can be penetrated into the chamber 80 via the through hole 90 by an electric wire and electrically connected to the circuit board 68. A styling sheet 111 (shown in FIG. 5) is attached to the light-emitting surface 36 of the light guiding member 34. The styling sheet 111 includes a molding hole 113, and the molding hole 113 is aligned with the light-emitting surface 36 of the light guiding member 34. Therefore, when the sensor installed on the vehicle side senses that the vehicle enters the blind spot area, the LED lamp 70 is driven, and the LED lamp 70 emits light to the plurality of concave arc grooves 42 of the light incident surface 40, and can pass through the light incident surface 40 first. One or a plurality of concave arc grooves 42 are diffused into the light guiding member 34, and the diffused light entering the light guiding member 34 is reflected by the plurality of reflecting surfaces 58 and emitted toward the light emitting surface 36 by the principle of total reflection, so that the diffusion is uniform. The emitted light is emitted outward through the molding hole 113 of the molding sheet 111 and the light transmission section 30 of the lens 29.

The feature of the present invention is that the blind spot warning light-emitting device 32 is disposed in the rear view mirror 10, and the light emitted from the LED lamp 70 is first diffused through one or a plurality of concave arc grooves 42 of the light-incident surface 40 of the light guide member 34. Then, through the reflection of the plurality of reflective surfaces 58, the blind spot warning illumination device 32 can generate uniform and bright warning light in the rear view mirror 10, thereby preventing the point source light of the LED lamp 70 from irritating the driver's eyes too strongly. Moreover, the present invention diffuses the emitted light of the LED lamp 70, and by the reflection of the plurality of reflecting surfaces 58 of the light guiding member 34, the diffusing agent can be added to the light guiding member 34 without increasing the manufacturing cost. Under the premise, it can provide the warning effect of the driver's uniform and bright visible light.

The basic teachings of this creation have been described, and many extensions and variations will be apparent to those having ordinary skill in the art. For example, the two sides of any concave arc groove 42 formed at the light incident surface 40 of the light guiding member 34 respectively form a side edge 44, and the two side edges 44 of any concave arc groove 42 and any adjacent concave arc groove When one side 44 of the 42 does not overlap and overlap, and does not prevent the LED lamp 70 from being driven to emit light, as long as the LED lamp 70 emits light and is irradiated on any of the concave arc grooves 42, the light can be emitted to the LED lamp 70. The diffusing action is carried out in the light member 34, which is well known to those skilled in the art.

The present invention disclosed in the specification is to be considered as illustrative and not restrictive. The scope of the present invention is defined by the scope of the appended claims, and is not intended to be limited by the scope of the invention.

10‧‧‧Car rearview mirror

20‧‧‧ lens group

22‧‧‧ lens holder

24‧‧‧ first side

26‧‧‧ second side

27‧‧‧Location area

28‧‧‧ window

29‧‧‧ lenses

30‧‧‧Light transmission interval

32‧‧‧Blind area warning lighting device

34‧‧‧Light guides

36‧‧‧Glossy

38‧‧‧ Positioning Department

40‧‧‧Into the glossy side

42‧‧‧ concave arc slot

44‧‧‧ side

46‧‧‧ terminal surface

48‧‧‧ first side

50‧‧‧ second side

54‧‧‧Action surface

58‧‧‧ Reflective surface

62‧‧‧ recess

66‧‧‧Slope section

68‧‧‧ boards

70‧‧‧LED lights

71‧‧‧ optical axis

72‧‧‧ cover

74‧‧‧ first surface

76‧‧‧Second surface

78‧‧‧ outer perimeter

80‧‧ ‧ room

82‧‧‧ inner circumference

84‧‧‧ bottom

86‧‧‧Inlay

88‧‧‧cut section

90‧‧‧Perforation

92‧‧‧ snap groove

94‧‧‧Shell

96‧‧‧ openings

98‧‧‧ accommodating space

111‧‧‧Model tablets

113‧‧‧ modeling holes

115‧‧‧Adhesive layer

A‧‧‧ acute angle

The first picture is a three-dimensional exploded view of the rear view mirror of the blind spot warning light-emitting device.

Fig. 2 is an exploded perspective view of the warning light emitting device of the creation blind zone.

Figure 3 is a side view of the light guide of the warning zone illumination device of the creation blind zone.

Figure 4 is a perspective view of the blind spot warning light emitting device coupled to the lens set.

Fig. 5 is a cross-sectional view taken along line 5-5 of Fig. 4.

Figure 6 is a cross-sectional view taken along line 6-6 of Fig. 5 showing the light emitted from the LED lamp first diffused through the plurality of concave arc grooves of the light incident surface.

Fig. 7 is a schematic view showing that the light emitted by the LED lamp is diffused through a plurality of concave arc grooves of the light incident surface and reflected by the reflective surface of each reflective surface to generate uniform bright light.

All of the drawings are merely illustrative of the basic teachings of the present invention, and the extension of the number, position, relationship, and size of the components constituting the preferred embodiment will be explained in the drawings. After reading and understanding the teachings of the present invention, Relevant changes are implemented in industry skills. In addition, changes in the exact dimensions and size ratios associated with specific strengths, weights, strengths and similar requirements are also within the skill of the industry after reading and understanding the teachings of this creation.

In the different drawings, the same reference numerals are used to designate the same or similar elements. In addition, please refer to the text such as "first", "second", "inside", "outside", "end", "side", "side" The likes and similar terms are only convenient for the viewer to refer to the construction in the figure and are only used to help describe the creation.

Claims (9)

A blind spot warning lighting device for a vehicle rearview mirror, which is disposed in a vehicle rearview mirror, comprising: a light guiding member comprising a light emitting surface spaced along a front-rear direction and a non-parallel to the light emitting surface a working surface, and a light incident surface and a terminal surface separated along a longitudinal direction, wherein the light incident surface and the end surface are adjacent to the light emitting surface and the opposite end of the active surface, and the length of the light incident surface formed in the front and rear direction The size is larger than the length dimension formed by the end face in the front-rear direction, and the light-incident surface forms a plurality of concave arc grooves, the action surface includes a plurality of concave portions, the plurality of concave portions defining a plurality of reflective surfaces, and the plurality of reflective surfaces Forming an acute angle with the light-emitting surface; a cover is disposed around the light guide member, the cover cover includes a first surface and a second surface spaced apart in the front-rear direction, and the first and second surfaces are Forming an outer peripheral surface, a chamber recessed into the first surface, the light guiding member is disposed in the chamber, and a light emitting surface of the light guiding member is aligned with a lens side of the rear view mirror Light transmission interval; a circuit board, security In the chamber of the cover, the circuit board includes an LED lamp electrically connected, the LED lamp is aligned with the light incident surface of the light guide member, and when the LED light is driven to emit light, the emitted light is After being diffused through the concave arc groove of the light incident surface, the light is reflected outward through the plurality of reflective surfaces and uniformly emitted toward the light exit surface. The blind spot warning lighting device for a vehicle rear view mirror according to claim 1, wherein the light guiding member further comprises a first one separated in a transverse direction perpendicular to the longitudinal direction and perpendicular to the front and rear direction. The first side surface and the second side surface are respectively adjacent to the light emitting surface, the active surface, the light incident surface and the end surface, and the plurality of recesses 6 extend from the side of the first side surface to a second side of the side, the plurality of reflective surfaces extending from the first side to the second side, the acute angle formed between the plurality of reflective surfaces and the light exiting surface is between 2,645 The blind spot warning lighting device for a vehicle rear view mirror according to claim 1, wherein the light guiding member further comprises a first one separated in a transverse direction perpendicular to the longitudinal direction and perpendicular to the front and rear direction. The first side surface and the second side surface are respectively adjacent to the light emitting surface, the active surface, the light incident surface and the end surface, and the plurality of concave portions extend from the first side surface to the first side The side surfaces of the two sides extend from the side of the first side surface to the side of the second side surface, and the acute angle formed between the plurality of reflecting surfaces and the light emitting surface ranges from 3140 to an acute angle of 31 and an acute angle of 0.51. For 40 The blind spot warning lighting device for a vehicle rearview mirror according to claim 1, wherein the light guiding member 34 further comprises a lateral direction separated perpendicular to the longitudinal direction and perpendicular to the front and rear direction. a first side surface and a second side surface respectively adjacent to the light emitting surface, the active surface, the light incident surface and the end surface, the plurality of recesses extending from the side of the first side surface to a side surface of the second side surface, the plurality of reflective surfaces extending from the side of the first side surface to the side of the second side surface, and the acute angle formed between the plurality of light reflecting surfaces and the light exiting surface is adjacent to the light incident surface The acute angle between the first reflecting surface and the light emitting surface of the side is calculated. Each incremental direction in the longitudinal direction increases the acute angle between the incremental reflecting surface and the light emitting surface by 0.51. The blind spot warning light-emitting device for a vehicle rearview mirror according to the first aspect of the invention, wherein the two sides of any concave arc groove formed at the light-incident surface respectively form one side, and any concave arc groove The two sides overlap with one side of any adjacent concave arc grooves, and the width between the two sides of any of the concave arc grooves ranges from 0.5 mm to 2 mm. The blind spot warning lighting device for a vehicle rearview mirror according to claim 1, wherein the depth of any concave arc groove from the deepest end to the light entrance surface ranges from 0.5 mm to 2 mm. The blind spot warning lighting device for a vehicle rearview mirror according to claim 1, wherein the LED lamp has a beam angle range of 10120. The blind spot warning lighting device for a vehicle rearview mirror according to claim 1, wherein the LED lamp has a beam angle of 60±10 The blind spot warning light-emitting device for a vehicle rearview mirror according to claim 1, further comprising a molding sheet attached to a light-emitting surface of the light guiding member, the modeling sheet comprising a light-transmissive molding hole. The styling aperture is aligned with the light transmissive section of the lens.