CN218441954U

CN218441954U - Inner lens capable of uniformly emitting light in large area and polarizing light in large angle and reading lamp

Info

Publication number: CN218441954U
Application number: CN202222888426.8U
Authority: CN
Inventors: 阳发军
Original assignee: Chongqing Rebo Lighting & Electronics Co ltd
Current assignee: Chongqing Rebo Lighting & Electronics Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-02-03
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses an inner lens and a reading lamp capable of uniformly emitting light in large area and polarizing light in large angle, which can realize uniform light emission effect well by the one-to-one correspondence design of a plurality of LED lamp beads and each light emission concave surface and the arc-shaped structure of the light emission concave surface, and can realize large-area uniform light emission of the whole light emission end surface by matching with the polarizing convex patterns with uniform structure and array distribution; and because the polarized light raised patterns distributed in the array are all cambered surfaces facing to the same direction, not only can the light at different positions in the inner lens be uniformly projected to the same area, but also the final light spots are approximately circular, thereby realizing uniform large-angle polarized light.

Description

Inner lens capable of uniformly emitting light in large area and polarizing light in large angle and reading lamp

Technical Field

The utility model relates to an automotive interior small lamp technical field, concretely relates to inner lens and reading lamp that can the large tracts of land evenly luminous and big angle polarisation.

Background

The reading lamp is an interior lantern for providing illumination to the occupants of the vehicle. Along with the gradual improvement of the lighting requirements of people in the vehicle, the reading lamp is required to uniformly emit light in a large area, and the reading lamp is required to polarize light in a large angle due to the limitation of the installation position in the vehicle.

However, due to the structural design of the existing reading lamp and the inner lens, the reading lamp capable of uniformly emitting light in a large area cannot polarize light in a large angle, and the reading lamp capable of polarizing light in a large angle only has a small uniformly-emitting area.

It is urgent to solve the above problems.

SUMMERY OF THE UTILITY MODEL

For solving the technical problem above, the utility model provides a can the large tracts of land evenly luminous and the interior lens and the reading lamp of the big angle polarisation.

The technical scheme is as follows:

the utility model provides an inner lens of evenly luminous and wide-angle polarisation of large tracts of land, includes the inner lens body, and the both ends terminal surface of this inner lens body is respectively for advancing light terminal surface and light-emitting terminal surface, the sectional area of inner lens body is crescent to the light-emitting terminal surface from advancing the light terminal surface, and its main points lie in: the light receiving concave surfaces are arranged along the length direction of the light inlet end surface in a sunken way, each light receiving concave surface is of an arc-shaped structure, and the axis of each light receiving concave surface is in the width direction of the light inlet end surface;

the light-emitting end face is composed of outer end faces of polarized light raised patterns distributed in an array mode, each polarized light raised pattern is of a quadrangular prism structure, the outer end face of each polarized light raised pattern is of an outwards-protruding cambered surface structure, and the protruding height of the outer end face of each polarized light raised pattern is gradually reduced from the same corner to the other corner which is farthest away from the same corner.

The utility model provides a reading lamp, includes the lamp body, sets up outer lens on the lamp body and install the PCBA in the lamp body, its main points lie in: the LED lamp is characterized in that the lamp shell is internally provided with the inner lens capable of uniformly emitting light in a large area and polarizing light in a large angle through a support, the light emitting end face is opposite to the inner surface of the external light distribution mirror, the PCBA is integrated with the LED lamp beads in one-to-one correspondence with the light receiving concave surfaces, the LED lamp beads partially extend into the corresponding light receiving concave surfaces respectively, and the light emitting surfaces of the LED lamp beads face the corresponding light receiving concave surfaces respectively.

Compared with the prior art, the beneficial effects of the utility model are that:

by adopting the inner lens and the reading lamp which can uniformly emit light in a large area and polarize light in a large angle in the technical scheme, the uniform light receiving effect can be well realized through the one-to-one correspondence design of the LED lamp beads and the light receiving concave surfaces and the arc-shaped structure of the light receiving concave surfaces, and the large-area uniform light emission can be realized on the whole light emitting end surface by matching with the polarize convex patterns which are consistent in structure and distributed in an array; and because the polarized light raised patterns distributed in the array are all cambered surfaces facing to the same direction, not only can the light at different positions in the inner lens be uniformly projected to the same area, but also the final light spots are approximately circular, thereby realizing uniform large-angle polarized light.

Drawings

FIG. 1 is a schematic view of a reading lamp;

FIG. 2 is a cross-sectional view of the reading light;

FIG. 3 is a schematic view of the mating relationship of the housing, inner lens and holder;

FIG. 4 is a schematic view of the mating relationship of the housing and the bracket;

FIG. 5 is a schematic structural view of a stent;

FIG. 6 is a schematic view of one of the viewing angles of the inner lens;

FIG. 7 is a schematic view of another view of the inner lens;

fig. 8 is a schematic diagram of the remaining viewing angle of the inner lens.

Detailed Description

The present invention will be further described with reference to the following examples and the accompanying drawings.

As shown in fig. 2 and fig. 6 to 8, an inner lens capable of emitting light uniformly in a large area and polarizing light in a large angle mainly includes an inner lens body 1, and end faces at two ends of the inner lens body 1 are a light-entering end face 11 and a light-exiting end face 12, that is: the outer end face of the inner lens body 1 is a light inlet end face 11, and the inner end face of the inner lens body 1 is a light outlet end face 12. The sectional area of the inner lens body 1 gradually increases from the light inlet end face 11 to the light outlet end face 12, the light inlet end face 11 is recessed to form light receiving concave faces 13 arranged along the length direction of the light inlet end face, each light receiving concave face 13 is of an arc-shaped structure, and the axis of each light receiving concave face 13 is the width direction of the light inlet end face 11. Therefore, each LED lamp bead 51 of the reading lamp corresponds to each light receiving concave surface 13 one to one, and the light receiving effect of uniform light can be well realized by matching the circular arc structure of the light receiving concave surface 13.

Further, both sides of each light receiving concave surface 13 in the width direction are transited to the circumferential side wall of the inner lens body 1 in an arc transition manner. Each light receiving concave surface 13 is of a saddle-shaped structure, so that the light receiving effect of uniform light can be further improved.

The light-emitting end face 12 is composed of outer end faces of polarization raised patterns 121 distributed in an array, each polarization raised pattern 121 is a quadrangular prism structure, the outer end face of each polarization raised pattern 121 is an outwardly convex arc-shaped structure, and the convex height of the outer end face of each polarization raised pattern 121 is gradually reduced from the same corner to the other corner which is farthest away from the same corner. The protruding decorative pattern 121 of polarisation that the array distributes not only can throw the light of the inside different positions of inner lens body 1 to same region uniformly, realizes the big angle polarisation uniformly, because the protruding decorative pattern 121 of polarisation that the array distributes structure is unanimous and ultimate facula all is approximately circular moreover, can make whole light-emitting terminal surface realize the large tracts of land and evenly give out light.

Further, the cross-sectional size of the polarizing projection pattern 121 is preferably 1.5mm × 1.5mm, and too small a size of the polarizing projection pattern 121 may result in low energy utilization rate and insufficient brightness of the reading lamp, while too large a size of the polarizing projection pattern 121 may result in poor control of the shape of the light spot, so that the embodiment combines the energy utilization rate and the light spot effect, and uses the polarizing projection pattern 121 of 1.5mm × 1.5 mm.

Referring to fig. 1 and 2, a reading lamp includes a lamp housing 2, an outer lens 3 disposed on the lamp housing 2, and a PCBA5 mounted in the lamp housing 2, the lamp housing 2 is mounted with the inner lens capable of emitting light uniformly in a large area and polarizing light in a large angle through a support 4, a light-emitting end face 12 faces an inner surface of the outer lens 3, the PCBA5 is integrated with LED beads 51 corresponding to light-receiving concave surfaces 13 one by one, each LED bead 51 extends into a corresponding light-receiving concave surface 13, and a light-emitting surface of each LED bead 51 faces the corresponding light-receiving concave surface 13. Therefore, the reading lamp not only can uniformly emit light in a large area, but also can polarize light in a large angle.

In this embodiment, lamp body 2 includes casing 21 and installs the back lid 22 of keeping away from outer lens 3 one side at casing 21 through joint cooperation mode detachably, and the outer lens 3 that adopts the plastics material of passing through light and the casing 21 that adopts the plastics material of shading pass through double-shot moulding technology integrated into one piece, and not only structural strength and joint strength are high, have reduced the preparation and the assembly process of spare part moreover. Wherein the inner lens body 1 is mounted on the housing 21 by means of the holder 4.

The rear cover 22 is provided with a plurality of clamping protrusions 221, the housing 21 is provided with mounting bayonets 212 respectively matched with the clamping protrusions 221, and when the rear cover 22 is covered on the housing 21, the clamping protrusions 221 are respectively clamped into the corresponding mounting bayonets 212.

Referring to fig. 2, 4 and 5, the support 4 is an annular structure sleeved on the outer lens 3, a plurality of support positioning ribs 41 and a plurality of support limiting ribs 42 are distributed on the outer peripheral surface of the support 4, the housing 21 has a mounting groove 211 matched with the inner lens body 1 and the support 4, support rib grooves 211a matched with the support positioning ribs 41 are formed on the groove wall of the mounting groove 211 in a recessed manner, the support positioning ribs 41 are respectively embedded into the corresponding support rib grooves 211a, and the support limiting ribs 42 are all supported on the groove wall of the mounting groove 211. The bracket 4 can be stably and reliably mounted on the housing 21 without shaking or without mounting in a wrong or wrong manner.

Referring to fig. 2, 6 and 7, the lens mounting sleeve 14 annularly surrounds the inner lens body 1 and is integrally formed in the circumferential direction of the inner lens body 1, the lens mounting sleeve 14 includes a mounting ring portion 141 and a supporting ring portion 142 located at one end of the mounting ring portion 141 far away from the light-emitting end face 12, the mounting ring portion 141 is adapted to the support 4, the supporting ring portion 142 circumferentially protrudes out of the mounting ring portion 141 to form a limiting step 142a, supporting protrusions 142b are annularly distributed on the limiting step 142a, a plurality of lens limiting ribs 142c are distributed on the outer circumferential surface of the supporting ring portion 142, the mounting ring portion 141 is embedded in the support 4, each supporting protrusion 142b is supported on the outer edge of one end of the support 4 far away from the outer lens 3, and each lens limiting rib 142c is supported on the groove wall of the mounting groove 211. The mounting ring portion 141 can be reliably mounted on the bracket 4, and the support ring portion 142 can be stably and reliably mounted on the housing 21.

In addition, referring to fig. 3 and 4, in order to facilitate the installation and positioning of the inner lens body 1 and the error prevention of installation, an outer end of one of the support rib grooves 211a is expanded in diameter to form a lens positioning rib groove 211a1, a lens positioning rib 142e matched with the lens positioning rib groove 211a1 is arranged on the outer circumferential surface of the support ring portion 142, and the lens positioning rib 142e is inserted into the lens positioning rib groove 211a 1.

Further, referring to fig. 3 and 5-7, the outer edge of the end of the support 4 away from the outer lens 3 has an error-proof positioning post 43 protruding toward the lens mounting sleeve 14, the supporting ring portion 142 has an error-proof positioning slot 142d matching with the error-proof positioning post 43, and the error-proof positioning post 43 is inserted into the error-proof positioning slot 142d, so as to ensure the accurate mounting of the inner lens body 1 and the support 4 and avoid the occurrence of reverse or wrong mounting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Finally, it should be noted that the above description is only a preferred embodiment of the present invention, and those skilled in the art can make various similar representations without departing from the spirit and the scope of the present invention.

Claims

1. The utility model provides an inner lens that can large tracts of land uniform lighting and wide-angle polarisation, includes inner lens body (1), and the both ends terminal surface of this inner lens body (1) is respectively for advancing light terminal surface (11) and light-emitting terminal surface (12), the sectional area of inner lens body (1) is from advancing light terminal surface (11) to light-emitting terminal surface (12) crescent, its characterized in that: the light receiving concave surfaces (13) which are arranged along the length direction of the light inlet end surface (11) are formed in a concave mode, each light receiving concave surface (13) is of an arc-shaped structure, and the axis of each light receiving concave surface (13) is the width direction of the light inlet end surface (11);

the light-emitting end face (12) is composed of outer end faces of polarized light raised patterns (121) distributed in an array mode, each polarized light raised pattern (121) is of a quadrangular prism structure, the outer end face of each polarized light raised pattern (121) is of an outwardly-protruding cambered surface structure, and the protruding height of the outer end face of each polarized light raised pattern (121) is gradually reduced from the same corner to the other corner which is farthest away from the same corner.

2. The inner lens capable of large area uniform illumination and large angle polarization as claimed in claim 1, wherein: and two sides of each light receiving concave surface (13) in the width direction are transited to the circumferential side wall of the inner lens body (1) in an arc transition mode.

3. The utility model provides a reading lamp, includes lamp body (2), sets up outer lens (3) on lamp body (2) and install PCBA (5) in lamp body (2), its characterized in that: the inner lens capable of uniformly emitting light in a large area and polarizing light in a large angle as claimed in any one of claims 1 to 2 is mounted in the lamp housing (2) through a support (4), the light-emitting end face (12) is right opposite to the inner surface of the outer lens (3), the PCBA (5) is integrated with LED lamp beads (51) which are in one-to-one correspondence with the light-receiving concave surfaces (13), each LED lamp bead (51) partially extends into the corresponding light-receiving concave surface (13), and the light-emitting surface of each LED lamp bead (51) faces the corresponding light-receiving concave surface (13).

4. A reading light as claimed in claim 3, wherein: lamp body (2) include casing (21) and install back lid (22) keeping away from outer lens (3) one side in casing (21) through joint cooperation mode detachably, adopt outer lens (3) of transparent plastics material and casing (21) that adopt the shading plastics material to pass through double-shot moulding technology integrated into one piece, interior lens body (1) is installed on casing (21) through support (4).

5. The reading lamp of claim 4, wherein: support (4) are the annular structure of suit on outer lens (3), and it has a plurality of support location muscle (41) and a plurality of support spacing muscle (42) to distribute on the outer peripheral face of this support (4), casing (21) have with mounting groove (211) of inner lens body (1) and support (4) looks adaptation, sunken support muscle groove (211 a) that are formed with respectively with each support location muscle (41) looks adaptation on the cell wall of mounting groove (211), during each support location muscle (41) imbeds corresponding support muscle groove (211 a) respectively, each support spacing muscle (42) all support on the cell wall of mounting groove (211).

6. The reading light of claim 5, wherein: the lens mounting sleeve (14) is annularly surrounded around inner lens body (1) and is formed in a circumferential integrated manner by inner lens body (1), the lens mounting sleeve (14) comprises a mounting ring portion (141) and a supporting ring portion (142) located at one end, far away from light-emitting end face (12), of mounting ring portion (141), the mounting ring portion (141) is matched with a support (4), the supporting ring portion (142) protrudes out of the mounting ring portion (141) along the circumferential direction to form a limiting step (142 a), supporting protrusions (142 b) are annularly distributed on the limiting step (142 a), a plurality of lens limiting ribs (142 c) are distributed on the outer circumferential face of the supporting ring portion (142), the mounting ring portion (141) is embedded into the support (4), the supporting protrusions (142 b) are supported on the outer edge of one end, far away from outer lens (3), of the support (4), and the lens limiting ribs (142 c) are supported on the groove wall of the mounting groove (211).

7. The reading light of claim 6, wherein: the outer edge of one end, far away from the outer lens (3), of the support (4) is provided with a mistake-proofing positioning column (43) protruding towards the lens installation sleeve (14), the support ring portion (142) is provided with a mistake-proofing positioning groove (142 d) matched with the mistake-proofing positioning column (43), and the mistake-proofing positioning column (43) is inserted into the mistake-proofing positioning groove (142 d).