Optical module capable of forming Wufu character

Abstract

The utility model discloses an optical module capable of forming a Wufu character, which comprises a laser emitter, a diffractive optical element, an element mounting seat, a decorative lighting shell and a calibration rod, the diffractive optical element is fixedly arranged in the element mounting seat, the laser emitter is arranged in the decorative lighting shell, and the calibration rod is arranged on the diffractive optical element. The multiple calibration rods are evenly arranged at an outlet of the decorative lighting shell, the extension direction of the calibration rods is horizontally outward, the laser of the laser transmitter is adjusted to be parallel to the extension line of the calibration rods, and an O-shaped ring is arranged on the element installation base. According to the utility model, the accuracy of the position of the installed diffractive optical element is ensured through the arranged calibration rod, the installation position of the laser transmitter is accurate after the product is produced, the accuracy during replacement is ensured due to the existence of the calibration rod when the element installation seat and the diffractive optical element are replaced in the later period, and the sealing performance is ensured through the arranged O-shaped ring.

Description

Technical Field

[0001] The utility model relates to the technical field of optical systems, and particularly relates to an optical module capable of forming the pattern of "Five Blessings". Background Art

[0002] Currently, few optical modules are applied to products such as atmosphere lights and welcome lights. The existing patents include ZL201120290009.2, an automotive laser welcome light; ZL201320447442.1, an automotive laser welcome light and an automobile; and CN202122195021.1, a multi-heart laser atmosphere light. The atmosphere lights and welcome light products provided by these existing technologies have achieved the purposes of compact structure and clear images.

[0003] The diffractive optical module cooperates with the laser emitter to achieve the purpose of imaging. However, in existing products, the optical module is not provided in a replaceable form. As a result, when different effects are desired, customers can only repeatedly purchase the corresponding atmosphere lights and welcome lights, resulting in poor user experience.

[0004] For atmosphere lights and welcome lights with replaceable optical modules, assembly accuracy and sealing performance need to be considered. Here, an optical module with high assembly accuracy and good sealing performance is provided. Summary of the Utility Model

[0005] The purpose of the utility model is to provide an optical module capable of forming the pattern of "Five Blessings", which solves the problems of insufficient sealing performance and installation accuracy after the replacement of the optical module in current atmosphere lights and welcome lights.

[0006] According to one aspect of the present disclosure, the following technical solution is provided: An optical module capable of forming the pattern of "Five Blessings" includes a laser emitter and a diffractive optical element. The diffractive optical element has a double-sided structure. One side of the structural surface is processed into a grating phase structure that forms a one-dimensional five-point splitting light field after irradiation, and the other side is processed into a grating phase structure that forms the light field of the character "Fu" after irradiation. The structural surface has a relief-type microscopic morphology. The diffractive optical element is fixed in front of the laser emitter. The light emitted by the light source passes through the diffractive optical element, and a complete diffraction light field of the pattern of "Five Blessings" appears in the front.

[0007] The optical module further includes an element mounting seat, a lighting housing, and calibration rods. The diffractive optical element is fixedly arranged in the element mounting seat. The laser emitter is installed in the lighting housing. A plurality of calibration rods are provided and evenly arranged at the outlet of the lighting housing. The extending direction of the calibration rods is horizontally outward. The laser of the laser emitter is adjusted to be parallel to the extension line of the calibration rods. An O-ring is provided on the element mounting seat.

[0008] Based on the above scheme, this application ensures the accuracy of the position of the installed diffractive optical element by setting a calibration rod. After the product is manufactured, the laser emitter is installed in an accurate position. When replacing the component mounting base and diffractive optical element later, the presence of the calibration rod ensures the accuracy of the replacement. The O-ring ensures the sealing performance.

[0009] Furthermore, the calibration rod is a triangular prism made of aluminum alloy. During installation, one side of the calibration rod is installed into the mounting groove at the outlet of the lamp housing. The ridge line of this side is used as the reference line, and the laser emitted by the laser emitter is parallel to this reference line.

[0010] Based on the above scheme, this application uses the ridge line of the calibration rod as the reference line, which provides higher accuracy.

[0011] Furthermore, the component mounting base has a through channel in the center for mounting diffractive optical elements. The front projection shape of the component mounting base is convex, and its upper part is accommodated at the outlet of the lamp housing. A matching calibration slot is provided on the upper part corresponding to the position of the calibration rod.

[0012] Based on the above solution, this application uses a calibration rod and calibration slot to ensure accuracy while facilitating installation.

[0013] Furthermore, a first annular homogeneous mounting plate is fixedly provided on the end face of the lamp housing outlet, and a second annular homogeneous mounting plate is fixedly provided on the lower part of the component mounting base opposite to the first annular homogeneous mounting plate. The first and second annular homogeneous mounting plates are made of aluminum alloy, and the first and second annular homogeneous mounting plates are in contact with each other, and the contact surfaces are precision machined.

[0014] Based on the above solution, this application improves the installation accuracy by setting a first annular homogeneous mounting plate and a second annular homogeneous mounting plate. Both the first annular homogeneous mounting plate and the second annular homogeneous mounting plate are made of rigid materials, and the reference surface is accurate during installation. On the other hand, the first annular homogeneous mounting plate and the second annular homogeneous mounting plate achieve a certain sealing effect after contact.

[0015] Furthermore, a screw hole is provided on the side of the lamp housing, and a screw hole is provided on the upper part of the component mounting base at the position corresponding to the screw hole. The component mounting base is installed at the outlet of the lamp housing using screws.

[0016] Based on the above scheme, the location of the screw hole avoids the positions of the first and second annular homogeneous mounting plates and the calibration rod, thus ensuring the accuracy of the installation.

[0017] The technical effects and advantages of this utility model are as follows:

[0018] (1) The utility model ensures the accuracy of the position of the installed diffractive optical element through the provided calibration rod. After the product is produced, the installation position of the laser emitter is accurate. When replacing the element mounting seat and the diffractive optical element later, the existence of the calibration rod ensures the accuracy during replacement, and the provided O-ring ensures the sealing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings illustrate exemplary embodiments of the present disclosure and are used together with the description to explain the principles of the present disclosure. These drawings are included to provide a further understanding of the present disclosure, and the drawings are included in this specification and form a part of this specification.

[0020] Figure 1 is an overall structural schematic diagram of an optical module capable of forming the five-character "Fu" pattern according to an embodiment of the present disclosure.

[0021] Figure 2 is an enlarged view of part A of an optical module capable of forming the five-character "Fu" pattern according to an embodiment of the present disclosure.

[0022] Figure 3 is an end face schematic diagram of the outlet of the lighting fixture housing of an optical module capable of forming the five-character "Fu" pattern according to an embodiment of the present disclosure.

[0023] The specific reference numerals in the drawings are as follows:

[0024] Diffractive optical element - 1, element mounting seat - 2, lighting fixture housing - 3, calibration rod - 4, O-ring - 5, calibration groove - 6, first annular homogeneous mounting disk - 7, second annular homogeneous mounting disk - 8. SPECIFIC EMBODIMENTS

[0025] Example 1:

[0026] As shown in the drawings, an optical module capable of forming the five-character "Fu" pattern according to the present disclosure includes a laser emitter (not shown), a diffractive optical element 1. The diffractive optical element 1 has a double-sided structure. One side of the structural surface is processed into a grating phase structure that forms a one-dimensional five-point splitting light field after irradiation, and the other side is processed into a grating phase structure that forms a "Fu" character graphic light field after irradiation. The structural surface has a relief-type microscopic morphology. The diffractive optical element is fixed in front of the laser emitter, and the light emitted by the light source passes through the diffractive optical element, and a complete diffraction light field of the five-character "Fu" pattern is formed at the front.

[0027] The optical module also includes an element mounting base 2, a lamp housing 3, and calibration rods 4. The diffractive optical element 1 is fixedly mounted in the element mounting base 2, and the laser emitter is mounted in the lamp housing 3. Multiple calibration rods 4 are evenly arranged at the outlet of the lamp housing 3, with the extension direction of the calibration rods 4 horizontally outward. The laser beam from the laser emitter is adjusted to be parallel to the extension line of the calibration rod. An O-ring 5 is provided on the element mounting base, according to the attached... Figure 1 As shown, the lamp housing 3 also houses electronic components such as a controller and power supply for controlling the laser emitter. The calibration rod 4 is a triangular prism made of aluminum alloy, which is lightweight and has sufficient hardness. During installation, one side of the calibration rod 4 is inserted into the mounting groove at the outlet of the lamp housing 3, with the ridge line of that side serving as the reference line. In this embodiment, the reference line is clearly defined. During production, the reference line is kept horizontal. When adjusting the attitude of the laser emitter and replacing the diffraction optical element 1, it is only necessary to ensure the installation accuracy of the element mounting base 2. The laser emitted by the laser emitter is parallel to the reference line. Using the ridge line of the calibration rod 4 as the reference line provides higher accuracy.

[0028] This application ensures the accuracy of the position of the installed diffractive optical element 1 by setting the calibration rod 4. After the product is manufactured, the laser emitter is installed in an accurate position. When replacing the element mounting base 2 and the diffractive optical element 1 in the later stage, the presence of the calibration rod 4 ensures the accuracy of the replacement. The O-ring 5 ensures the sealing.

[0029] The component mounting base 2 has a through-channel at its center for mounting the diffractive optical element 1. The front projection shape of the component mounting base 2 is convex, and its upper part is accommodated at the outlet of the lamp housing 3. A matching calibration slot 6 is provided on the upper part corresponding to the position of the calibration rod 4. The matching of the calibration rod 4 and the calibration slot 6 facilitates installation while ensuring accuracy.

[0030] Example 2:

[0031] Compared with Embodiment 1, in order to further improve the installation accuracy after replacing the component mounting base 2 and the diffractive optical element 1, a first annular homogeneous mounting plate 7 is fixedly provided on the end face of the outlet of the lamp housing 3, and a second annular homogeneous mounting plate 8 is fixedly provided on the lower part of the component mounting base 2 directly opposite the first annular homogeneous mounting plate 7. The first annular homogeneous mounting plate 7 and the second annular homogeneous mounting plate 8 are made of aluminum alloy. The first annular homogeneous mounting plate 7 and the second annular homogeneous mounting plate 8 are in contact with each other, and the contact surfaces are precision machined. After precision machining, the first annular homogeneous mounting plate 7 and the second annular homogeneous mounting plate 8 are more tightly combined, with high installation accuracy and good sealing performance.

[0032] This application improves the installation accuracy by setting a first annular homogeneous mounting plate 7 and a second annular homogeneous mounting plate 8. Both the first annular homogeneous mounting plate 7 and the second annular homogeneous mounting plate 8 are made of rigid materials, so the reference surface is accurate during installation. On the other hand, the first annular homogeneous mounting plate 7 and the second annular homogeneous mounting plate 8 have a certain sealing effect after they come into contact.

[0033] Example 3:

[0034] A screw hole is provided on the side of the lamp housing 3. A screw hole is also provided on the upper part of the component mounting base 2 at the corresponding screw hole position. The component mounting base 2 is installed at the outlet of the lamp housing 3 using screws. The position of the screw hole avoids the positions of the first annular homogenizing mounting plate 7, the second annular homogenizing mounting plate 8, and the calibration rod 4, ensuring the accuracy of installation.

[0035] It should be noted that the lamp housing 3 is equipped with a mounting bracket for easy use, but this will not be described in this case.

[0036] Those skilled in the art should understand that the above embodiments are merely for illustrating the present disclosure and are not intended to limit the scope of the disclosure. Those skilled in the art can make other changes or modifications based on the above disclosure, and these changes or modifications still fall within the scope of the present disclosure.

Claims

1. An optical module capable of forming the pattern of "Five Blessings", comprising a laser emitter and a diffractive optical element. The diffractive optical element has a double-sided structure. One of the structural surfaces is processed into a grating phase structure that forms a one-dimensional five-point splitting light field after irradiation, and the other surface is processed into a grating phase structure that forms a light field of the character "Fu" after irradiation. The structural surface has a relief-type microtopography. The diffractive optical element is fixed directly in front of the laser emitter. The light emitted by the light source passes through the diffractive optical element, and a complete diffractive light field of the pattern of "Five Blessings" appears at the front. Its features are, The optical module further includes a component mounting seat, a lighting fixture housing, and calibration rods. The diffractive optical element is fixedly arranged in the component mounting seat. The laser emitter is installed in the lighting fixture housing. There are multiple calibration rods, which are evenly arranged at the outlet of the lighting fixture housing. The extending direction of the calibration rods is horizontally outward. Adjust the laser of the laser emitter to be parallel to the extension line of the calibration rods. An O-ring is arranged on the component mounting seat.

2. The optical module capable of forming the five blessings characters according to claim 1, wherein: The calibration rods are triangular prisms made of aluminum alloy. During installation, one side of a calibration rod is installed in the installation groove at the outlet of the lighting fixture housing, and the edge line corresponding to this side is used as the reference line. The laser emitted by the laser emitter is parallel to this reference line.

3. The optical module capable of forming the five blessings pattern according to claim 2, characterized in that: The component mounting seat is provided with a through-channel in the center for installing the diffractive optical element. The front projection shape of the component mounting seat is convex-shaped. Its upper part is accommodated at the outlet of the lighting fixture housing, and an adapted calibration groove is provided at the position corresponding to the calibration rods in the upper part.

4. An optical module capable of forming the Five Blessings characters according to claim 3, characterized in that: A first annular homogeneous mounting disc is fixedly arranged on the end face at the outlet of the lighting fixture housing. A second annular homogeneous mounting disc is fixedly arranged at the position of the lower part of the component mounting seat opposite to the first annular homogeneous mounting disc. The first annular homogeneous mounting disc and the second annular homogeneous mounting disc are made of aluminum alloy, and the first annular homogeneous mounting disc and the second annular homogeneous mounting disc are in contact with each other, and the contact surface is finely processed.

5. An optical module capable of forming the five blessings characters according to claim 4, characterized in that: A screw hole is provided on the side of the lighting fixture housing. A screw hole is provided at the position of the upper part of the component mounting seat corresponding to this screw hole. The component mounting seat is installed at the outlet of the lighting fixture housing by using screws.

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