CN213686446U

CN213686446U - Vehicle-mounted reading lamp lens system

Info

Publication number: CN213686446U
Application number: CN202023056905.0U
Authority: CN
Inventors: 南基学
Original assignee: Yejia Optical Technology Guangdong Corp
Current assignee: Yejia Optical Technology Guangdong Corp
Priority date: 2020-12-16
Filing date: 2020-12-16
Publication date: 2021-07-13
Anticipated expiration: 2030-12-16

Abstract

The utility model provides a vehicle-mounted reading lamp lens system, which comprises a light source, a beam converging lens and a beam adjusting lens group which are arranged in sequence, wherein the optical axis of the light source is collinear with the optical axis of the beam converging lens, the beam adjusting lens group comprises a plurality of lens columns which are arranged side by side, the central axes of the lens columns are parallel to the optical axis of the light source, and one end of each lens column, which is close to the beam converging lens, is provided with a first light-gathering convex surface; the beam-converging lens is externally fixed with a positioning seat, the light source is positioned in the positioning seat, one end of the positioning seat is connected with a light-transmitting sleeve, the beam-adjusting lens group is fixed in the light-transmitting sleeve, and the surface of the light-transmitting sleeve is provided with a pattern layer. The utility model discloses the light that can effectively adjust the light source and send ensures to form concentrated grading effect at last, can avoid the emergent ray to disperse all around and influence driver's field of vision, and in addition, the pattern layer utilizes the light that a small part of follow beam adjusting mirror group side refraction and go out can form luminous pattern effect, can form the decoration or the bandwagon effect that correspond.

Description

Vehicle-mounted reading lamp lens system

Technical Field

The utility model relates to an optical lens system specifically discloses an on-vehicle reading lamp lens system.

Background

The lens system refers to a system of optical elements which are made of transparent substances and have a part of spherical surface, and the lens system can form corresponding adjusting effect on an optical path.

The vehicle-mounted reading lamp is a lighting structure arranged on the ceiling in the automobile, and can provide corresponding lighting effect for passengers in the automobile under the condition of insufficient ambient light. Among the prior art, on-vehicle reading lamp includes light source and face lid structure usually, and the during operation, each region in the car is shone to the light that the light source sent provides extensive illuminating effect for car inside, because the light that finally sends diverges, not only can't bring high bright concentrated illuminating effect for the passenger, and the light of dispersing moreover in the driving process can take place to reflect and influence driver's field of vision in places such as front windshield, window glass, seriously influences driving safety.

SUMMERY OF THE UTILITY MODEL

Therefore, it is necessary to provide a vehicle-mounted reading lamp lens system aiming at the problems in the prior art, which can form a concentrated light distribution effect, can effectively realize an illumination effect of sufficient brightness aiming at a partial area, and has good safety performance.

In order to solve the prior art problem, the utility model discloses a vehicle-mounted reading lamp lens system, which comprises a light source, a beam converging lens and a beam adjusting lens group which are arranged in sequence, wherein the optical axis of the light source is collinear with the optical axis of the beam converging lens, the beam adjusting lens group comprises a plurality of lens columns which are arranged side by side, the central axes of the lens columns are parallel to the optical axis of the light source, and one end of each lens column, which is close to the beam converging lens, is provided with a first light-gathering convex surface; the beam-converging lens is externally fixed with a positioning seat, the light source is positioned in the positioning seat, one end of the positioning seat is connected with a light-transmitting sleeve, the beam-adjusting lens group is fixed in the light-transmitting sleeve, and the surface of the light-transmitting sleeve is provided with a pattern layer.

Further, the beam-converging lens is a fresnel lens.

Furthermore, a second light condensing convex surface is arranged at one end of the lens column, which is far away from the beam converging lens.

Furthermore, the lens columns are in a circular truncated cone shape, the lower bottoms of the lens columns are opposite to the beam-collecting lenses, and the beam-adjusting lens group further comprises a light-transmitting adhesive layer filled among the lens columns.

Further, the light-transmitting adhesive layer is a fluorescent adhesive layer.

Furthermore, the pattern layer is of a frosted pattern structure or an ink pattern structure.

Furthermore, the bottom surface of the positioning seat is covered with a reflecting layer, and the bottom surface of the positioning seat is of a bowl-shaped structure.

Furthermore, a bearing is connected between the positioning seat and the light-transmitting sleeve.

Furthermore, a light-transmitting surface cover is fixed at one end of the light-transmitting sleeve, which is far away from the positioning seat, and the light-transmitting surface cover is positioned outside one end of the beam adjusting lens group, which is far away from the beam converging lens.

The utility model has the advantages that: the utility model discloses an on-vehicle reading lamp lens system, be provided with and receive beam lens and special beam modulation group structure, the light that can effectively adjust the light source and send, ensure to form concentrated grading effect at last, can effectively realize the illuminating effect who possesses sufficient luminance to the subregion, can avoid the emergent ray to disperse all around and influence driver's field of vision, the security performance is good, furthermore, the pattern layer utilizes the light that few parts are refracted and go out from beam modulation group side can form luminous pattern effect, can form corresponding decoration or bandwagon effect, whole lens system's light energy utilization ratio is high.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic diagram of the optical path structure of the present invention.

The reference signs are: the light source 10, the beam converging lens 20, the beam adjusting lens group 30, the lens column 31, the first condensing convex surface 311, the second condensing convex surface 312, the transparent adhesive layer 32, the positioning seat 40, the reflective layer 401, the transparent sleeve 41, the pattern layer 411, the bearing 412 and the transparent surface cover 42.

Detailed Description

For further understanding of the features and technical means of the present invention, as well as the specific objects and functions attained by the present invention, the present invention will be described in further detail with reference to the accompanying drawings and detailed description.

Refer to fig. 1 and 2.

The embodiment of the utility model discloses on-vehicle reading lamp lens system, including the light source 10 that sets gradually, the lens 20 and the group 30 are restrainted in the receipts, the lens structure of the lens 20 is restrainted in the receipts, the optical axis of light source 10 and the optical axis collineation of the lens 20 of restrainting, the group 30 is restrainted in the accent includes a plurality of lens columns 31 that set up side by side, lens column 31 is parallel to each other, lens column 31 is cylindrical optical lens structure, preferably, can be acrylic lens or glass lens, lens column 31 is the lens structure that the cross-section is circular, the center pin of lens column 31 is parallel with the optical axis of light source 10, the one end that lens column 31 is close to the lens 20 of restrainting is equipped with first spotlight convex surface 311, can effectively improve the efficiency that light got into lens column 31 through first spotlight convex surface 311, preferably, first spotlight convex surface 311 is the aspheric surface structure that has positive focal power; the beam-focusing lens 20 is externally and fixedly mounted with a positioning seat 40, preferably, the positioning seat 40 is a metal positioning seat, which can effectively improve the heat dissipation performance of the lens system, the light source 10 is located in the positioning seat 40, one end of the positioning seat 40 is connected with a light-transmitting sleeve 41, preferably, the light-transmitting sleeve 41 is an acrylic sleeve structure or a glass sleeve structure, the beam-adjusting mirror group 30 is fixed in the light-transmitting sleeve 41, and the surface of the light-transmitting sleeve 41 is provided with a pattern layer 411.

When the utility model works, the light emitted by the light source 10 is converged by the converging lens 20, so that most of the light can reach the first light-gathering convex surface 311 of the light-transmitting column, the light can be reduced from irradiating the inner wall of the positioning seat 40, and the utilization rate of the light energy can be effectively improved; the light is collected and reaches the lens column 31 after passing through the first light-gathering convex surface 311, the first light-gathering convex surface 311 can effectively adjust the incident angle of the light entering the lens column 31, the incident angle of the light can be effectively made to reach a total reflection angle, the leakage of the light from the side wall of the lens column 31 can be effectively reduced, the light collection effect can be effectively improved, the light is prevented from being emitted from the other end of the lens column 31 and then being dispersed in all directions, the light spots with sufficient brightness and in a certain range can be effectively formed by the light finally emitted by the lens system, the light distribution effect with good light gathering is formed, the bright lighting effect can be provided for a user, meanwhile, the condition that the view of a driver is influenced by the light finally emitted to all places in the vehicle can be avoided, and the driving safety can be effectively improved; partial incidence angle does not satisfy during the light of total reflection angle refracts the printing opacity cover 41 from the lateral wall of lens post 31, and this partial light can form luminous pattern effect through printing opacity cover 41 and pattern layer 411, has good decorative performance, and multi-functional lens system more possesses market competition, and during the application, positioning seat 40 inlays inside the car roof, and printing opacity cover 41 protrusion is in the car roof.

In this embodiment, the converging lens 20 is a fresnel lens, which can effectively reduce the length and weight of the whole lens system.

In this embodiment, the end of the lens column 31 away from the converging lens 20 is provided with a second convex converging surface 312, and the second convex converging surface 312 is an aspheric structure with positive focal power, so that the light emitted through the lens column 31 can be further converged, thereby reducing the probability of light diverging to the periphery and improving the light converging effect.

In this embodiment, the lens columns 31 are circular truncated cone-shaped, that is, the lens columns 31 are cone-shaped structures with the tips cut off, the lower bottoms of the lens columns 31 are opposite to the beam converging lens 20, that is, the radius of the lens columns 31 is gradually reduced from the end close to the beam converging lens 20, so that the beam converging and condensing effect can be further improved, the beam modulating mirror group 30 further includes a transparent adhesive layer 32 filled between each two adjacent lens columns 31, because the lens columns 31 are circular truncated cone-shaped structures, gaps are formed at the ends of the lens columns 31 far away from the beam converging lens 20, and the transparent adhesive layer 32 is filled in the gaps, so that the stability of the beam modulating mirror group 30 can be effectively improved.

Based on the above embodiment, the light-transmitting adhesive layer 32 is a fluorescent adhesive layer, the refractive index of the light-transmitting adhesive layer 32 is smaller than that of the lens column 31, and the color of the fluorescent adhesive layer can be set as required to adjust the finally obtained light distribution color.

In this embodiment, the pattern layer 411 is a frosted pattern structure or an ink pattern structure, that is, the pattern layer 411 is a frosted layer structure obtained by a chemical or mechanical method and forming a specific pattern, or the pattern layer 411 is an ink layer structure obtained by a printing method and forming a specific pattern.

In this embodiment, the bottom surface of the positioning seat 40 is covered with the reflective layer 401, and the bottom surface of the positioning seat 40 is in a bowl-shaped structure, so that the utilization rate of light energy can be further improved by the reflective layer 401.

In this embodiment, a bearing 412 is connected between the positioning seat 40 and the light-transmitting sleeve 41, and the lens sleeve can rotate around the positioning seat 40 through the bearing 412, so that the pattern layer 411 rotates to a corresponding position, and the light-emitting pattern formed during operation can be decorated for a corresponding area.

In the present embodiment, a transparent cover 42 is fixed to an end of the transparent sleeve 41 away from the positioning seat 40, preferably, the transparent cover 42 is an acrylic cover or a glass cover, and the transparent cover 42 is located outside an end of the beam adjusting mirror assembly 30 away from the beam converging lens 20, so as to effectively protect the beam adjusting mirror assembly.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. The vehicle-mounted reading lamp lens system is characterized by comprising a light source (10), a beam converging lens (20) and a beam adjusting mirror group (30) which are sequentially arranged, wherein the optical axis of the light source (10) is collinear with the optical axis of the beam converging lens (20), the beam adjusting mirror group (30) comprises a plurality of lens columns (31) which are arranged side by side, the central axis of each lens column (31) is parallel to the optical axis of the light source (10), and one end, close to the beam converging lens (20), of each lens column (31) is provided with a first light-gathering convex surface (311); a positioning seat (40) is fixed outside the beam converging lens (20), the light source (10) is located in the positioning seat (40), one end of the positioning seat (40) is connected with a light-transmitting sleeve (41), the beam adjusting mirror group (30) is fixed in the light-transmitting sleeve (41), and a pattern layer (411) is arranged on the surface of the light-transmitting sleeve (41).

2. The vehicle reading lamp lens system as claimed in claim 1, wherein the converging lens (20) is a fresnel lens.

3. A vehicle reading light lens system as claimed in claim 1, wherein the end of the lens column (31) remote from the converging lens (20) is provided with a second convex focusing surface (312).

4. The vehicle-mounted reading lamp lens system of claim 1, wherein the lens columns (31) are circular truncated cones, the lower bottoms of the lens columns (31) face the beam converging lenses (20), and the beam adjusting lens group (30) further comprises a light-transmitting glue layer (32) filled between the lens columns (31).

5. The vehicle reading light lens system of claim 4, wherein the light-transmissive adhesive layer (32) is a fluorescent adhesive layer.

6. The vehicle reading lamp lens system of claim 1, wherein the pattern layer (411) is a frosted pattern structure or an ink pattern structure.

7. The vehicle-mounted reading lamp lens system as claimed in claim 1, wherein the bottom surface of the positioning seat (40) is covered with a reflective layer (401), and the bottom surface of the positioning seat (40) is of a bowl-shaped structure.

8. A vehicle reading lamp lens system as claimed in claim 1, wherein a bearing (412) is connected between the positioning seat (40) and the light-transmitting sleeve (41).

9. The vehicle-mounted reading lamp lens system of claim 1, wherein a light-transmitting surface cover (42) is fixed to an end of the light-transmitting sleeve (41) away from the positioning seat (40), and the light-transmitting surface cover (42) is located outside an end of the beam adjusting lens group (30) away from the beam converging lens (20).