MLA micro lens module

Abstract

The utility model discloses an MLA micro lens module, which comprises a shell, and an MLA micro lens, a collimating lens and a shading piece which are arranged in the shell and are sequentially arranged from front to back, the collimating lens comprises a plurality of light gathering channels, and a plurality of profiling diaphragms are arranged in the shell and positioned on the front sides of the light gathering channels. A plurality of profiling diaphragms are located between every two adjacent light condensation channels, a plurality of light source areas used for containing light sources are arranged on the shading piece, each light source area corresponds to one light condensation channel, and shading diaphragms are arranged on the outer sides of the light source areas; according to the MLA micro lens module, the plurality of profiling diaphragms located between the two adjacent light gathering channels are arranged between the shell and the collimating mirror, and meanwhile, the shading piece is arranged on the rear side of the collimating mirror, so that stray light and ghosting phenomena of a projection pattern of a light path can be prevented through the profiling diaphragms and the shading piece, and light path optical crosstalk when a plurality of light sources are lightened respectively is prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of projection lamps, and more particularly to an MLA microlens module. Background Art

[0002] The current structure of the existing MLA microlens module is usually composed of a housing, an MLA microlens and a collimating lens, which is installed at the light source. During use, due to the gaps and light-transmitting areas between the various focusing channels of the collimating lens and the light source installation, the projection pattern is prone to astigmatism, ghosting and other phenomena during projection. Therefore, it is necessary to design and develop an MLA microlens module that can avoid astigmatism, ghosting and other phenomena in the projection pattern. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the utility model provides an MLA microlens module. The MLA microlens module is provided with a plurality of contoured light bars between the outer shell and the collimating lens, respectively located between two adjacent focusing channels, and a light shielding piece is provided on the rear side of the collimating lens. The contoured light bars and the light shielding piece can prevent stray light and ghosting of the projection pattern of the light path, and prevent light crosstalk when multiple light sources are lit separately.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] An MLA microlens module includes a housing and an MLA microlens, a collimator, and a light shielding member installed in the housing and arranged in sequence from front to back. The collimator includes a plurality of focusing channels. A plurality of contoured light bars are provided in the housing in front of the plurality of focusing channels, and the plurality of contoured light bars are respectively located between two adjacent focusing channels. The light shielding member is provided with a plurality of light source areas for accommodating light sources, each light source area corresponding to a focusing channel, and a light shielding bar is provided on the outer side of each light source area.

[0006] Furthermore, the light shielding barrier is a plurality of light shielding protrusions, and the plurality of light shielding protrusions surround the light source area.

[0007] Furthermore, a light shielding groove is provided on the collimating mirror between two adjacent focusing channels, and a plurality of light shielding plates are provided on the side of the light shielding member facing the collimating mirror, and the plurality of light shielding plates extend into the light shielding grooves respectively.

[0008] Furthermore, a mounting groove is provided on the top of the housing, and the MLA microlens is installed in the mounting groove. A front cover for fixing the MLA microlens is provided on the front side of the MLA microlens, and the front cover is detachably connected to the housing.

[0009] Furthermore, a plurality of installation limiting structures are provided on the side surfaces of the installation slot at the top of the housing, and the installation limiting structures are installation limiting protrusions.

[0010] Furthermore, first clamping blocks are provided on both sides of the rear of the front cover, and first buckles are provided on both sides of the front of the shell, and the first buckles can be matched and connected with the first clamping blocks.

[0011] Furthermore, the shading member is made of rubber material.

[0012] Furthermore, anti-loosening structures are provided on both sides of the shell.

[0013] Furthermore, second buckles are provided on both sides of the shell, a connecting portion is provided on the rear side of the collimating lens, and second clamping blocks are provided on both sides of the connecting portion. The second buckles can be connected to the second clamping blocks by buckling.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. The utility model sets a plurality of contoured light bars between the housing and the collimator, respectively located between two adjacent focusing channels, and sets a light shielding member on the rear side of the collimator. The light shielding member includes a light source area and a light shielding light bar. Thus, the contoured light bar and the light shielding light bar can prevent stray light and ghosting of the projection pattern of the light path, and prevent light crosstalk when multiple light sources are lit separately.

[0016] 2. By setting up the front cover, installing the limit structure, the first clip, the first clamping block, the second clip and the second clamping block, etc., the precise positioning of the MLA microlens and the collimating lens can be achieved. At the same time, the multiple components are connected and combined by the clip method, which has high assembly efficiency and accurate assembly.

[0017] 3. Anti-loosening structures are provided on both sides of the housing so that the anti-loosening structures can cooperate with the structure of the car projection lamp housing and the structure on the PCB board to achieve the clamping and limiting of the entire MLA microlens module, thereby avoiding loosening caused by poor thermal riveting of the MLA microlens module and the PCB board, and avoiding loosening caused by vibration failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0019] Figure 1 Schematic diagram of the structure of an MLA microlens module;

[0020] Figure 2 An exploded view of an MLA microlens module;

[0021] Figure 3 is a cross-sectional view of an MLA microlens module;

[0022] Figure 4 Schematic diagram of the collimator and light shield Figure 1 ;

[0023] Figure 5 Schematic diagram of the structure of the shell;

[0024] Figure 6 Schematic diagram of the collimator and light shield Figure 2 ;

[0025] Figure 7 This is a schematic diagram of the structure of a car projection lamp;

[0026] Figure 8 Schematic diagram of the collimator and light shield Figure 3 .

[0027] The markings in the figure are: 1. Housing; 101. Mounting slot; 102. Mounting limit structure; 103. First clip; 104. Second clip; 105. Anti-loosening structure; 106. Contoured light bar; 2. MLA microlens; 3. Collimating mirror; 301. Focusing channel; 302. Connecting part; 303. Second clamping block; 304. Shading slot; 4. Shading member; 401. Light source area; 402. Shading light bar; 403. Shading plate; 5. Light source; 6. Front cover; 601. First clamping block; 7. Car projector lamp housing; 8. PCB board. DETAILED DESCRIPTION

[0028] In the description of the present invention, it should be noted that, for directional words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and so on, indicating directions and positional relationships are based on the directions or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Therefore, the terms "first" and "second" may explicitly or implicitly refer to one or more of these features. In the description of this utility model, "several" and "a number" mean two or more, unless otherwise specifically defined.

[0030] An MLA microlens module, such as Figure 1-6 As shown, it includes a housing 1 and an MLA microlens 2, a collimating lens 3 and a light shielding member 4 installed in the housing 1 and arranged in sequence from front to back. The collimating lens 3 includes a plurality of focusing channels 301. A plurality of profiling light bars 106 are provided in the housing 1 in front of the plurality of focusing channels 301. The plurality of profiling light bars 106 are respectively located between two adjacent focusing channels 301. The light shielding member 4 is provided with a plurality of light source areas 401 for accommodating light sources 5. Each light source area 401 corresponds to a focusing channel 301, and a light shielding light bar 402 is provided on the outer side of each light source area 401.

[0031] Preferably, Figure 6 As shown, the light shielding barrier 402 is a plurality of light shielding protrusions, and the plurality of light shielding protrusions surround the light source area 401 , thereby effectively achieving sealed light shielding at the light source 5 .

[0032] Preferably, the collimating mirror 3 is provided with a shading groove 304 between two adjacent focusing channels 301, and the shading member 4 is provided with a plurality of shading plates 403 on the side facing the collimating mirror 3, and the plurality of shading plates 403 respectively extend into the shading groove 304, thereby further avoiding light leakage and cross-talk between the two adjacent focusing channels 301.

[0033] Preferably, Figure 3 and Figure 5 As shown, the contoured light barrier 106 is a light barrier plate, and a plurality of light barrier plates are respectively located between two adjacent focusing channels 301 to prevent light leakage and cross-light between the two adjacent focusing channels 301, which would cause astigmatism, ghosting and other phenomena in the projection pattern.

[0034] Preferably, Figure 2 As shown, a mounting groove 101 is provided on the top of the housing 1, and the MLA microlens 2 is installed in the mounting groove 101, and a front cover 6 for fixing the MLA microlens 2 is provided on the front side of the MLA microlens 2, and the front cover 6 is detachably connected to the housing 1; the MLA microlens 2 is installed and fixed by the front cover 6, and the front cover 6 is detachably connected to the housing 1, which facilitates the later maintenance and replacement of the MLA microlens 2.

[0035] Preferably, Figure 2 As shown, a plurality of mounting limit structures 102 are provided on the side of the mounting groove 101 at the top of the housing 1. The mounting limit structures 102 are mounting limit protrusions. The top of the mounting limit protrusion extends out of the top of the housing 1 and is chamfered on the inside. Therefore, after the MLA microlens 2 is installed in the top of the housing 1, it can quickly achieve limit positioning and complete the installation.

[0036] Preferably, Figure 2As shown, first clamping blocks 601 are provided on both sides of the rear of the front cover 6, and first buckles 103 are provided on both sides of the front of the shell 1. The first buckles 103 can be connected with the first clamping blocks 601, thereby realizing a quick positioning connection and detachable connection between the front cover 6 and the shell 1.

[0037] Preferably, the shading member 4 is made of rubber material, which has good shading properties and is elastic. The shading member 4 can ensure that the installation location of the light source 5 is tightly connected to the pneumatic component without any light leakage gaps, thereby ensuring that the light source 5 does not leak light.

[0038] Preferably, Figure 7 As shown, anti-loosening structures 105 are provided on both sides of the housing 1. The anti-loosening structures 105 can be anti-loosening ribs. When the MLA microlens module is installed in the automobile projection lamp housing 7, the anti-loosening ribs can cooperate with the structure of the automobile projection lamp housing 7 and the structure on the PCB board 8 to realize the clamping and limiting of the entire MLA microlens module, thereby effectively preventing loosening.

[0039] Preferably, Figure 2 As shown, second clips 104 are provided on both sides of the housing 1, a connecting portion 302 is provided on the rear side of the collimator 3, and second clamping blocks 303 are provided on both sides of the connecting portion 302. The second clips 104 can be connected with the second clamping blocks 303 by clamping, so that the collimator 3 can be quickly positioned, installed and connected to the housing 1, and a detachable connection is achieved.

[0040] advantage:

[0041] 1. The utility model provides a plurality of contoured light bars 106 between the housing 1 and the collimator 3, each located between two adjacent focusing channels 301. At the same time, a light shielding member 4 is provided on the rear side of the collimator 3. The light shielding member 4 includes a light source area 401 and a light shielding light bar 402. Thus, the contoured light bar 106 and the light shielding light bar 402 can prevent stray light and ghosting of the projection pattern of the light path, and prevent cross-light in the light path when multiple light sources 5 are lit separately.

[0042] 2. By providing the front cover 6, the mounting limit structure 102, the first clip 103, the first clamping block 601, the second clip 104 and the second clamping block 303, etc., precise positioning of the MLA microlens 2 and the collimating lens 3 can be achieved. At the same time, multiple components are connected and combined by the clip method, which has high assembly efficiency and assembly accuracy.

[0043] 3. By providing anti-loosening structures 105 on both sides of the housing 1, the anti-loosening structures 105 can cooperate with the structure of the automobile projection lamp housing 7 and the structure on the PCB board 8 to achieve the clamping and limiting of the entire MLA microlens module, thereby avoiding loosening of the MLA microlens module and the PCB board 8 due to poor thermal riveting, and avoiding loosening due to vibration failure.

[0044] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. An MLA microlens module, characterized by: The invention comprises a shell and an MLA microlens, a collimating mirror and a light shielding member installed in the shell and arranged in sequence from front to back. The collimating mirror includes a plurality of focusing channels. A plurality of contoured light bars are arranged in front of the plurality of focusing channels in the shell. The plurality of contoured light bars are respectively located between two adjacent focusing channels. The light shielding member is provided with a plurality of light source areas for accommodating light sources. Each light source area corresponds to a focusing channel, and a light shielding bar is provided on the outer side of each light source area.

2. The MLA microlens module according to claim 1, wherein: The light shielding barrier is a plurality of light shielding protrusions, and the plurality of light shielding protrusions surround the light source area.

3. The MLA microlens module according to claim 2, wherein: The collimating mirror is provided with a light-shielding groove between two adjacent focusing channels, and a plurality of light-shielding plates are provided on a side of the light-shielding member facing the collimating mirror, and the plurality of light-shielding plates extend into the light-shielding grooves respectively.

4. The MLA microlens module according to claim 1, wherein: The top of the housing is provided with a mounting groove, the MLA microlens is installed in the mounting groove, and the front side of the MLA microlens is provided with a front cover for fixing the MLA microlens, and the front cover is detachably connected to the housing.

5. The MLA microlens module according to claim 4, characterized in that: A plurality of installation limiting structures are provided on the side surfaces of the installation slot at the top of the housing, and the installation limiting structures are installation limiting protrusions.

6. The MLA microlens module according to claim 4, wherein: The front cover is provided with first clamping blocks on both sides of the rear, and the shell is provided with first buckles on both sides of the front. The first buckles can be matched and connected with the first clamping blocks.

7. The MLA microlens module according to claim 1, wherein: The shading piece is made of rubber material.

8. The MLA microlens module according to claim 1, characterized in that: Anti-loosening structures are provided on both sides of the shell.

9. The MLA microlens module according to claim 1, wherein: Second buckles are provided on both sides of the shell, a connecting portion is provided on the rear side of the collimating lens, second clamping blocks are provided on both sides of the connecting portion, and the second buckles can be connected with the second clamping blocks by clamping.

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