Electrochromic layer-equipped automobile projection lens

Abstract

The utility model discloses a kind of car projection lenses with electrochromic layer, it includes shell (1);The projection cavity (2) being equipped in the shell (1), one end of projection cavity (2) is equipped with opening (3);Projection cavity (2) is connected with LED lamp pearl (4) in the direction of opening (3) sequentially spaced apart, condensing lens (5), parallel light collimating lens (6), projection diaphragm (7), imaging lens (8) and flat electrochromic glass (9);The circuit board (10) with power supply module is connected in the corresponding electrochromic glass (9) place on shell (1) inside, circuit board (10) is electrically connected on LED lamp pearl (4) and electrochromic glass (9).The utility model not only can improve imaging definition, still have projection color and bright and dark can change, projection diaphragm is more convenient and the advantage of higher structural stability of replacement.

Description

Technical Field

[0001] This utility model relates to the field of automotive projection lenses, and in particular to an automotive projection lens with an electrochromic layer. Background Technology

[0002] To enhance user experience and increase the ambiance and premium feel of cars, some vehicles are now equipped with projection lenses that project welcome patterns onto the ground. Traditional projection lenses typically consist of LED beads, a projection film, and an imaging lens. The light from the LED beads illuminates the projection film and then passes through the imaging lens to form a magnified, inverted pattern. However, in existing projection lenses, the light emitted by the LED beads is diffused, resulting in a blurry image after it hits the projection film and is imaged by the imaging lens. Furthermore, the color of the projected image is determined by the projection film and cannot be varied.

[0003] Therefore, existing automotive projection lenses suffer from problems such as blurred imaging and the inability to change the color of the projected image. Utility Model Content

[0004] The purpose of this invention is to provide an automotive projection lens with an electrochromic layer. This invention not only improves image clarity but also has the advantage of being able to change the projected color.

[0005] The technical solution of this utility model is as follows: A car projection lens with an electrochromic layer includes a housing; a projection cavity is provided inside the housing, and one end of the projection cavity has an opening; LED beads, a focusing lens, a collimating lens, a projection film, an imaging lens, and a planar electrochromic glass are sequentially spaced apart in the direction of the opening inside the projection cavity; a circuit board with a power supply module is connected inside the housing corresponding to the electrochromic glass, and the circuit board is electrically connected to the LED beads and the electrochromic glass.

[0006] In the aforementioned automotive projection lens with an electrochromic layer, a semi-circular insertion interface is provided on one side of the housing, and a card is inserted into the insertion interface; the projection film is connected to the card, and one end of the card protrudes out of the insertion interface.

[0007] In the aforementioned automotive projection lens with an electrochromic layer, the housing includes a left housing and a right housing arranged opposite to each other. The left housing has multiple insertion holes on both sides, and the right housing has insertion rods on both sides corresponding to the positions of each insertion hole.

[0008] In the aforementioned automotive projection lens with an electrochromic layer, multiple threaded connection holes are provided on both sides of the left outer shell, and screw holes are provided on the right outer shell at the position corresponding to each threaded connection hole. A screw is provided in the screw hole and threadedly connected to the threaded connection hole, with the tail end of the screw pressing on the screw hole.

[0009] Compared with the prior art, this utility model has a projection cavity with an opening at one end inside the housing. Inside the projection cavity, LED beads for emitting light, a focusing lens for focusing light, a collimating lens for refracting light into parallel light, a projection film for carrying the projected image, an imaging lens for forming a magnified and inverted image, and an electrochromic glass for changing color when energized are sequentially snapped together towards the opening. This allows the light emitted by the LED beads to be refracted by the focusing lens and the collimating lens to form parallel light that illuminates the projection film. The light then passes through the projection film and the imaging lens to form a clearer image. At the same time, the electrochromic glass changes color when energized, allowing the image projected on the ground to change color and brightness, resulting in a more sophisticated look.

[0010] In addition, a semi-circular insertion interface is provided on one side of the outer shell of this utility model. A card for installing a projection film is inserted into the insertion interface. One end of the card protrudes from the insertion interface. The user can simply pull out and replace the card to replace the projection film, thereby changing the image projected on the ground.

[0011] The outer shell consists of a left outer shell and a right outer shell arranged opposite each other. Multiple insertion holes on both sides of the left outer shell and multiple insertion rods on both sides of the right outer shell cooperate with each other to assemble the left and right outer shells into an outer shell. Then, screws are passed through the screw holes on the right outer shell and screwed into the threaded connection holes on the left outer shell, with the tail end of the screw pressing on the screw hole, so that the outer shell has high structural stability.

[0012] Therefore, this invention not only improves image clarity, but also has the advantages of variable projection color and brightness, convenient replacement of projection film, and high structural stability. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the left outer shell;

[0015] Figure 3 This is a structural diagram of the right outer shell;

[0016] Figure 4 This is a schematic diagram of the structure of the outer side of the right shell;

[0017] Figure 5 This is a schematic diagram of the card's structure.

[0018] The labels in the attached diagram are as follows: 1-outer shell, 2-projection cavity, 3-opening, 4-LED lamp bead, 5-condensing lens, 6-parallel light collimating lens, 7-projection film, 8-imaging lens, 9-electrochromic glass, 10-circuit board, 11-interface, 12-card, 13-left outer shell, 14-right outer shell, 15-insertion hole, 16-insertion rod, 17-threaded connection hole, 18-screw hole. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0020] Example. An automotive projection lens with an electrochromic layer, configured as follows: Figures 1 to 5 As shown, it includes a housing 1; a projection cavity 2 is provided inside the housing 1, and an opening 3 is provided at one end of the projection cavity 2; LED beads 4, a focusing lens 5, a collimating lens 6, a projection film 7, an imaging lens 8, and a planar electrochromic glass 9 are sequentially spaced apart in the direction of the opening 3 in the projection cavity 2; a circuit board 10 with a power supply module is connected inside the housing 1 corresponding to the electrochromic glass 9, and the circuit board 10 is electrically connected to the LED beads 4 and the electrochromic glass 9.

[0021] The outer casing 1 has a semi-circular insertion interface 11 on one side, and a card 12 is inserted into the insertion interface 11; the projection film 7 is connected to the card 12, and one end of the card 12 protrudes out of the insertion interface 11.

[0022] The outer casing 1 includes a left outer casing 13 and a right outer casing 14 arranged opposite to each other. The left outer casing 13 has multiple insertion holes 15 on both sides, and the right outer casing 14 has insertion rods 16 on both sides corresponding to the position of each insertion hole 15. The left outer casing 13 has multiple threaded connection holes 17 on both sides, and the right outer casing 14 has screw holes 18 on the position corresponding to each threaded connection hole 17. Screws are threaded into the screw holes 18 and the tail end of the screw is pressed against the screw hole 18.

[0023] Working principle: The LED lamp bead 4, the focusing lens 5, the parallel light collimating lens 6, the imaging lens 8, and the electrochromic glass 9 are placed in the projection cavity 2 inside the left outer shell 13. Then, the right outer shell 14 is placed on top of the left outer shell 13, and the plugs 16 on both sides of the right outer shell 14 are inserted into the plug holes 15 on both sides of the left outer shell 13. At this time, the multiple screw holes 18 on both sides of the right outer shell 14 are located on the threaded connection holes 17 on both sides of the left outer shell 13. Then, the screws are passed through the screw holes 18 and screwed into the threaded connection holes 17, so that the tail end of the screw presses on the screw hole 18, so that the left outer shell 13 and the right outer shell 14 are combined to form the outer shell 1.

[0024] Select the projection film 7 according to the user's preference, and insert the card 12 with the projection film 7 into the outer shell 1 through the semi-circular insertion interface 11 on the outer shell 1; then install the outer shell 1 on the car door, and connect the circuit board 10 to the power supply.

[0025] In use, opening the car door triggers a switch (usually an infrared sensor electrically connected to circuit board 10) that energizes the LED beads 4 inside the projection cavity 2, causing them to emit light. The light from the LED beads 4 is then focused by the condenser lens 5, collimated by the parallel light collimating lens 6, and finally projects onto the projection film 7 of the card 12. The light then passes through the imaging lens 8 to form an image, which is finally projected onto the ground through the electrochromic glass 9 at the opening 3 of the projection cavity 2. Simultaneously, circuit board 10 energizes the electrochromic glass 9, causing it to change color, resulting in variations in color and brightness in the projected image. When the projection film 7 needs to be replaced, the card 12 can be pulled out and replaced using the end protruding from the insertion interface 11.

Claims

1. An automotive projection lens with an electrochromic layer, comprising a housing (1); characterized in that: The outer casing (1) is provided with a projection cavity (2), and one end of the projection cavity (2) is provided with an opening (3); LED beads (4), a focusing lens (5), a collimating lens (6), a projection film (7), an imaging lens (8), and a planar electrochromic glass (9) are sequentially spaced in the direction of the opening (3) in the projection cavity (2); a circuit board (10) with a power supply module is connected to the outer casing (1) at the position corresponding to the electrochromic glass (9), and the circuit board (10) is electrically connected to the LED beads (4) and the electrochromic glass (9).

2. The automotive projection lens with electrochromic layer according to claim 1, characterized in that: The outer shell (1) has a semi-circular insertion interface (11) on one side, and a card (12) is inserted into the insertion interface (11); the projection film (7) is connected to the card (12), and one end of the card (12) protrudes out of the insertion interface (11).

3. The automotive projection lens with electrochromic layer according to claim 1, characterized in that: The outer casing (1) includes a left outer casing (13) and a right outer casing (14) arranged opposite to each other. The left outer casing (13) has multiple insertion holes (15) on both sides, and the right outer casing (14) has insertion rods (16) on both sides corresponding to the position of each insertion hole (15).

4. The automotive projection lens with electrochromic layer according to claim 3, characterized in that: The left outer shell (13) has multiple threaded connection holes (17) on both sides, and the right outer shell (14) has screw holes (18) at the position corresponding to each threaded connection hole (17). A screw is threaded into the screw hole (17) and the tail end of the screw is pressed on the screw hole (18).

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