CN210776148U

CN210776148U - Laser projection lantern

Info

Publication number: CN210776148U
Application number: CN201921727609.3U
Authority: CN
Inventors: 刘奎岩; 张祺; 齐小江; 马平平; 栗淑萍
Original assignee: Beijing Central Press Union Technology Co ltd
Current assignee: Beijing Central Press Union Technology Co ltd
Priority date: 2019-10-15
Filing date: 2019-10-15
Publication date: 2020-06-16
Anticipated expiration: 2029-10-15

Abstract

The utility model discloses a laser projection lantern, this lantern includes: lantern and laser projection module, laser projection module include laser source, drive unit and reciprocating motion unit, and drive unit drives reciprocating motion unit reciprocating motion, and light is sent by laser source, through the reciprocating motion unit, passes through the light hole on the lantern bottom plate platform after carrying out the diffraction formation of image, throws to the lantern outside, the utility model discloses a device simple structure, reasonable in design, low in manufacturing cost has realized that the lantern can throw out the laser map to can throw out laser dynamic map, improve the interest and the sight of lantern, can gain unexpected beneficial effect.

Description

Laser projection lantern

Technical Field

The utility model relates to a projection arrangement, in particular to laser projection lantern.

Background

The lantern, also called lantern color, is an ancient traditional handicraft of China, and people hang red lanterns symbolizing reunion in the lunar calendar around fifteen full-moon festival every year to create a festive atmosphere. The lantern has originated more than 2000 years ago, through the succession and the development of the various artists of lantern of the past generation, has formed rich and varied variety, though the variety is various different, but the luminous principle of every lantern is all similar basically, and traditional lantern all places the lantern in the lantern the inside basically, makes the lantern of different varieties send light through the lantern, in order to make traditional lantern function diversified, improves the sight and the interest of lantern, the utility model discloses combine traditional lantern and laser lamp, can make the lantern when realizing original function, throw out different patterns.

As is well known, a laser lamp is mainly composed of three parts, i.e., a laser light source, a mechanical movement mechanism, and a diffractive optical element. Wherein, the surface of the diffraction optical element is processed with a micro-nano-scale microstructure. By utilizing the diffraction effect of the micro-nano structure on light, the diffraction optical element can output incident point laser as a required image. Due to the characteristics of high brightness and high collimation of the laser, the laser lamp can realize the image display with long distance and high brightness, so the laser lamp is rapidly developed in markets in Europe, America and China in recent years.

But the vast majority of laser lamp products can only show static image on the existing market, for abundant performance content with improve the performance, make the utility model discloses both can throw out static image and can throw out dynamic image, the utility model discloses corresponding improvement has been made to the laser lamp, make the dynamic display that the laser lamp can realize the image, also will realize the rotation of arbitrary image transform, image translation and image exactly. The problem that how to realize an ideal dynamic display effect without significantly increasing the cost and the system complexity is an urgent need to be solved by the industry as a mass consumer product. In order to achieve a good dynamic image display effect, it is necessary to perform overall optimization in terms of the optical design of the diffractive optical element, the arrangement of images per frame, and the mechanical movement structure. The current mainstream laser lamp products mainly adopt static images or static image combination without internal relation, although a few products can realize certain dynamic image display, the effect is not ideal.

The existing scheme for realizing dynamic effect on the laser lamp mainly comprises the following steps: each frame pattern is arranged in a rectangular shape to form a strip shape, and the whole strip-shaped diffraction optical element makes reciprocating motion along the long side direction. The back and forth movement of the elongated diffractive optical element is achieved by controlling the forward and reverse rotation of the motor. This solution increases the cost by requiring the addition of motion control elements (singlechips, limit sensors, etc.), and also leads to an increase in the overall system size and complexity.

The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a laser projection lantern.

In order to achieve the above object, the utility model provides a laser projection lantern, including the lantern, still including leading to unthreaded hole and laser projection module, laser projection module is located the inside of lantern, and the bottom of lantern has been seted up and has been led to the unthreaded hole, and laser projection module throws laser to the lantern outside through leading to the unthreaded hole.

Preferably, in the above technical solution, the laser projection module includes a laser light source, a driving unit and a reciprocating unit, the laser light source is located at one side of the driving unit, the driving unit is parallel to the reciprocating unit, and the reciprocating unit is connected to the bottom of the lantern.

Preferably, in the above technical solution, the reciprocating unit includes: the laser device comprises a first frame body, a second frame body and a laser, wherein pattern units are manufactured on the surface of the first frame body, microstructure patterns taking frames as units are engraved on the pattern units, and laser can be directly irradiated onto the pattern units; the frame is characterized by further comprising a second frame body, a guide groove is formed in the inner side of the second frame body, and the first frame body is arranged in the guide groove of the second frame body.

Preferably, in the above technical scheme, the driving unit is an eccentric motor, the first frame body is provided with a guide hole, the driving unit further comprises a rotating shaft, one end of the rotating shaft is arranged in the guide hole, the other end of the rotating shaft is connected with the eccentric motor, and the eccentric motor drives the first frame body to rotate to perform circular motion.

Preferably, in the above technical solution, the guide groove on the inner side of the second frame body is attached to the outer surface of the first frame body in the horizontal direction or the vertical direction.

Preferably, in the above technical solution, the driving unit is an eccentric motor, a second frame is disposed inside the third frame, the second frame can move inside the third frame, a surface of the guide groove inside the second frame is attached to a surface outside the first frame, the driving unit further includes a rotating shaft, one end of the rotating shaft is rotatably connected to the first frame, the other end of the rotating shaft is connected to the eccentric motor, and the eccentric motor drives the first frame to rotate to make a circular motion.

Preferably, in the above technical solution, the guide groove on the inner side of the third frame body is attached to the outer side of the second frame body in the vertical direction, and the guide groove on the inner side of the second frame body is attached to the outer side surface of the first frame body in the horizontal direction; the guide groove on the inner side of the third frame body is attached to the horizontal direction of the outer side of the second frame body, and the guide groove on the inner side of the second frame body is attached to the outer surface of the first frame body in the vertical direction.

Preferably, in the above technical solution, the driving unit is an eccentric motor, the reciprocating unit further includes a frame, a pattern unit is made on the surface of the frame, a microstructure picture using a frame as a unit is engraved on the pattern unit, and the laser can be directly irradiated onto the pattern unit; the device is characterized by further comprising a rotating shaft, one end of the rotating shaft is connected with a driving shaft of an eccentric shaft motor, the other end of the rotating shaft is rotatably connected with the frame body, and the eccentric shaft motor drives the frame body to rotate to do circular motion.

Preferably, in the above technical solution, the driving unit is a common motor; the reciprocating unit further comprises: the laser device comprises a frame body, wherein pattern units are manufactured on the surface of the frame body, microstructure pictures taking frames as units are engraved on the pattern units, and laser can be directly irradiated onto the pattern units; the sheet metal part is arranged above the frame body and at least provided with a first through hole and a second through hole, the laser light source is at least provided with a first laser light source and a second laser light source, the first laser light source and the second laser light source are different in color, the first laser light source directly irradiates the pattern unit through the first through hole, and the second laser light source directly irradiates the pattern unit through the second through hole; one end of the rotating shaft is connected with the sheet metal part, and the other end of the rotating shaft is rotatably connected with the connecting piece; one end of the connecting piece is rotatably connected with one end of the rotating shaft, and the other end of the connecting piece is connected with the frame body; a linkage unit; the driving shaft of the common motor is connected with the linkage unit; and the second rotating shaft is linked with the rotating shaft through the linkage unit.

Preferably, among the above-mentioned technical scheme, still including, the linkage unit includes first gear, second gear and third gear, and the one end and the connecting piece of second pivot are rotated and are connected, and the other end of second pivot is connected with the sheet metal component through the third gear, and the pivot is connected with the sheet metal component through the second gear, and first gear and second gear and third gear intermeshing, the drive shaft of ordinary motor is connected with arbitrary gear in the linkage unit.

Compared with the prior art, the utility model discloses following beneficial effect has:

combine traditional lantern and laser lamp organic together, when the lantern realizes the illumination function originally, utilize the laser lamp to throw out different images, the interest and the sight of reinforcing lantern improve the laser lamp, under the prerequisite that does not additionally add the motion control unit and hardly increase system volume and cost, designed to be carved with the microstructure pattern that uses the frame as the unit in first framework to realize the dynamic image display of laser lamp. The design of the diffractive optical element and the design of the mechanical movement structure of the laser lamp are considered comprehensively, and the organic combination between the diffractive optical element and the mechanical movement structure is realized. Utilize the utility model discloses a laser lamp throws out different dynamic image, has not only improved the sight and the interest of lantern, has made things convenient for the laser lamp trade to realize technical upgrading under the cost as far as possible moreover, has solved the key technical problem of laser lamp trade upgrading in-process.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a front view of a reciprocating unit in which a driving unit is an eccentric motor in embodiments 1 to 3;

FIG. 3 is a partially enlarged view showing the rectilinear motion of the reciprocating unit in embodiment 1;

FIG. 4 is another partially enlarged view of the linear motion of the reciprocating unit in embodiment 1;

FIG. 5 is a partial enlarged view of the reciprocating unit in circular motion in embodiment 2;

FIG. 6 is another partially enlarged view of the circular motion of the reciprocating unit in embodiment 2;

FIG. 7 is a partial enlarged view of the reciprocating unit in circular motion in embodiment 3;

FIG. 8 is a bottom view of the gear in structural connection with the sheet metal member;

FIG. 9 is a front view of the connection of the gears, sheet metal parts and frame;

description of the main reference numerals:

1-lantern, 2-light through hole, 3-laser projection module, 31-laser light source, 32-driving unit, 33-reciprocating unit, 34-sheet metal part, 321-eccentric motor, 322-common motor, 331-first frame, 332-second frame, 333-rotating shaft, 334-third frame, 335-frame, 336-second rotating shaft, 338-linkage unit, 339-guide hole, 330-connecting piece, 341-first through hole, 342-second through hole, 3381-first gear, 3382-second gear, 3383-third gear.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Example 1

As shown in fig. 1-4, according to the utility model discloses embodiment's a laser projection lantern, including lantern 1, still including leading to unthreaded hole 2 and laser projection module 3, laser projection module 3 is located lantern 1's inside, and logical unthreaded hole 2 has been seted up to lantern 1's bottom, and laser projection module 3 throws laser to lantern 1 outside through leading to unthreaded hole 2.

The laser projection module 3 comprises a laser source 31, a driving unit 32 and a reciprocating unit 33, wherein the laser source is positioned on one side of the driving unit 32, the driving unit 32 is parallel to the reciprocating unit 33, and the reciprocating unit 33 is connected with the bottom of the lantern 1.

The reciprocating unit 33 includes: the laser device comprises a first frame body 331, wherein a pattern unit is manufactured on the surface of the first frame body 331, a microstructure pattern taking a frame as a unit is engraved on the pattern unit, laser can be directly irradiated onto the pattern unit, and a driving unit 32 drives the first frame body to do circular motion; the second frame 332 has a guide groove formed inside the second frame 332, and the first frame 331 is disposed in the guide groove of the second frame 332.

The driving unit 32 is an eccentric motor 321, and the first frame 331 is provided with a guide hole; the first frame further comprises a rotating shaft 333, one end of the rotating shaft 333 is arranged in the guide hole 339, the other end of the rotating shaft 333 is connected with the eccentric shaft motor 32, and the eccentric motor 321 drives the first frame to do circular motion.

The guide groove on the inner side of the second frame body 332 is attached to the outer surface of the first frame body 331 in the horizontal direction or the vertical direction, the second frame body 332 limits the horizontal direction or the vertical direction of the first frame body 331, the rotating shaft 333 makes a linear reciprocating motion in the guide hole 339, the circular motion of the first frame body 331 is converted into a linear motion, and then the first frame body 331 can make a linear reciprocating motion under the continuous rotation of the eccentric motor 321. In a static state, the laser scans the pattern unit on the first frame 331 to obtain the diffractive optical element shaped like the outline of the first frame 331, in a dynamic state, the first frame 331 makes a linear reciprocating translational motion, and each frame of microstructure pattern on the first frame 331 is sequentially scanned, so as to obtain the rectangular diffractive optical element, thereby realizing a dynamic display effect.

Example 2

As shown in fig. 5-6, according to the utility model discloses embodiment's a laser projection lantern, including lantern 1, still including leading to unthreaded hole 2 and laser projection module 3, laser projection module 3 is located lantern 1's inside, and logical unthreaded hole 2 has been seted up to lantern 1's bottom, and laser projection module 3 throws laser to lantern 1 outside through leading to unthreaded hole 2.

The driving unit 32 is an eccentric motor 321, and the reciprocating unit 33 further includes: a third frame body 334, a second frame body 332 is arranged inside the third frame body 334, the second frame body 332 can move in the third frame body 334, and the surface of the guide groove inside the second frame body 334 is jointed with the outer surface of the first frame body 331; the device further comprises a rotating shaft 333, one end of the rotating shaft 333 is rotatably connected with the first frame body 331, the other end of the rotating shaft is connected with the eccentric motor 321, and the eccentric motor 321 drives the first frame body to rotate to make circular motion.

The guide groove on the inner side of the third frame body 334 is jointed with the outer side of the second frame body 332 in the vertical direction, and the guide groove on the inner side of the second frame body 332 is jointed with the outer side surface of the first frame body 334 in the horizontal direction; the inner guide groove of the third frame 334 is horizontally attached to the outer side of the second frame 332, and the inner guide groove of the second frame 332 is vertically attached to the outer surface of the first frame 334. The rotation of the eccentric motor 321 drives the rotating shaft 333 to perform circular motion, the rotating shaft 333 rotates to drive the first frame body 334 to perform translational motion in the vertical direction or the horizontal direction in the second frame body 332, the corresponding second frame body 332 performs translational motion in the horizontal direction or the vertical direction in the third frame body, and the first frame body performs linear circular motion relative to the laser under the combination of the translational motion of the first frame body 332 and the translational motion of the second frame body. In a static state, the laser scans the pattern unit on the first frame 331 to obtain the diffractive optical element shaped like the shape of the first frame 331, in a dynamic translation, each frame pattern of the first frame 334 makes a circular motion to form a circle, and the laser sequentially scans the patterns on the first frame in the circle according to the sequence of the circular motion to obtain the circular diffractive optical element, so as to realize a dynamic display effect.

Example 3

As shown in fig. 7, according to the utility model discloses embodiment's a laser projection lantern, including lantern 1, still including leading to unthreaded hole 2 and laser projection module 3, laser projection module 3 is located lantern 1's inside, and logical unthreaded hole 2 has been seted up to lantern 1's bottom, and laser projection module 3 throws laser to lantern 1 outside through leading to unthreaded hole 2.

The laser projection module 3 comprises a laser source 31, a driving unit 32 and a reciprocating unit 33, wherein the laser source is positioned at one side of the driving unit 32, the driving unit 32 is parallel to the reciprocating unit 33, and the reciprocating unit 33 is connected with the bottom of the lantern 1.

The driving unit 32 is an eccentric motor 321, the reciprocating unit 33 further comprises a frame 335, a pattern unit is manufactured on the surface of the frame 335, a microstructure picture taking a frame as a unit is engraved on the pattern unit, and laser can be directly irradiated onto the pattern unit; the device further comprises a rotating shaft 333, one end of the rotating shaft 333 is connected with the eccentric motor 321, the other end of the rotating shaft 333 is rotatably connected with the frame 335, and the eccentric motor 321 drives the frame 335 to rotate to make circular motion. The eccentric motor 321 rotates to drive the rotating shaft 333 to make a circular motion, and further drives the frame 335 to make a circular motion. In static state, the laser scans the pattern unit on the frame 335 to obtain the diffractive optical element shaped like the outer shape of the frame 335, in dynamic translation, each frame pattern of the frame 335 makes circular motion to form a circle, and the laser sequentially scans the patterns on the frame 335 in the circle according to the sequence of the circular motion to obtain the circular diffractive optical element, so as to realize dynamic display effect.

Example 4

As shown in fig. 8-9, according to the utility model discloses a laser projection lantern of embodiment, including lantern 1, still including leading to unthreaded hole 2 and laser projection module 3, laser projection module 3 is located lantern 1's inside, and logical unthreaded hole 2 has been seted up to lantern 1's bottom, and laser projection module 3 throws laser to lantern 1 outside through leading to unthreaded hole 2.

The driving unit 32 is a general motor 322; the reciprocating unit 33 further includes: a frame body 335, wherein a pattern unit is manufactured on the surface of the frame body 335, a microstructure picture taking a frame as a unit is engraved on the pattern unit, and laser can be directly irradiated onto the pattern unit; the laser light source 31 is at least provided with a first laser light source and a second laser light source, the first laser light source and the second laser light source are different in color, the first laser light source directly irradiates the pattern unit through the first through hole 341, and the second laser light source directly irradiates the pattern unit through the second through hole 342; the sheet metal part connecting device further comprises a rotating shaft 333, one end of the rotating shaft 333 is connected with the sheet metal part 34, and the other end of the rotating shaft 333 is rotatably connected with the connecting piece 330; one end of the connecting piece 330 is rotatably connected with one end of the rotating shaft 333, and the other end of the connecting piece 330 is connected with the frame 335; a linkage unit 338 is also included; the driving shaft of the common motor 322 is connected with the linkage unit 32; the device further comprises a second rotating shaft 336, and the second rotating shaft 336 is linked with the rotating shaft 333 through a linkage unit 338.

The linkage unit 338 further comprises a first gear 3381, a second gear 3382 and a third gear 3383, one end of the second rotating shaft 336 is rotatably connected with the connecting member 330, the other end of the second rotating shaft 336 is connected with the sheet metal part 34 through the third gear 3383, the rotating shaft 333 is connected with the sheet metal part 34 through the second gear 3382, and the first gear 3381 is engaged with the second gear 3382 and the third gear 3383; the drive shaft of the common motor 322 is connected to any one of the gears of the linkage unit 32. In this embodiment, the driving shaft of the ordinary motor 322 is connected to the first gear 3381, the ordinary motor 322 rotates to drive the first gear 3381 to rotate, the first gear 3381 drives the second gear 3382 and the third gear 3383 to rotate, the second gear 3382 rotates to drive the rotating shaft 333 to rotate, the rotating shaft 333 rotates to drive the connecting member 330 to rotate, the third gear 3383 rotates to drive the second rotating shaft 336 to rotate, the second rotating shaft 336 rotates to drive the connecting member 330 on the second rotating shaft 336 to rotate therewith, so that the ordinary motor rotates to drive the connecting members 330 on the two rotating shafts to synchronously make a circular motion, and further drive the frame 335 to make a circular motion, and in a static state, the laser source 31 sweeps through the first through hole 341 and the second through hole 342 on the sheet metal part 34 over the pattern unit on the frame 335 to obtain the diffractive optical element shaped like the shape of the frame 335, and in a dynamic translation, each frame pattern of the frame 335 makes a, the laser light source is made to form a circle, and the laser light source is made to scan the pattern on the frame 335 performing circular motion through the first through hole 341 and the second through hole 342, so as to obtain a circular diffractive optical element, thereby realizing a dynamic display effect.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims

1. The laser projection lantern is characterized by further comprising a light through hole and a laser projection module, wherein the laser projection module is located inside the lantern, the light through hole is formed in the bottom of the lantern, and laser is projected to the outside of the lantern through the light through hole by the laser projection module.

2. The laser projection lantern of claim 1, wherein said laser projection module comprises a laser source, a driving unit and a reciprocating unit, said laser source is located at one side of said driving unit, said driving unit is parallel to said reciprocating unit, said reciprocating unit is connected to the bottom of said lantern.

3. A laser projection lantern as described in claim 2 wherein said reciprocating unit comprises:

the laser device comprises a first frame body, a driving unit and a laser unit, wherein a pattern unit is manufactured on the surface of the first frame body, a microstructure pattern taking a frame as a unit is engraved on the pattern unit, the laser can be directly irradiated onto the pattern unit, and the driving unit drives the first frame body to do circular motion;

the inner side of the second frame body is provided with a guide groove, and the first frame body is arranged in the guide groove of the second frame body.

4. The laser projection lantern of claim 3 further comprising said drive unit being an eccentric motor; the first frame body is provided with a guide hole; the eccentric motor is connected with the first frame body, and the first frame body is driven by the eccentric motor to rotate to move circularly.

5. The laser projection lantern of claim 4 wherein said guide slot on the inside of said second frame abuts the horizontally or vertically outer surface of said first frame.

6. A laser projection lantern as described in claim 3 wherein said drive unit is an eccentric motor; the reciprocating unit further comprises:

the second frame body is arranged on the inner side of the third frame body, a guide groove is formed in the third frame body, and the second frame body can move in the third frame body; the surface of the guide groove on the inner side of the second frame body is attached to the outer side surface of the first frame body;

the one end of pivot with first framework rotates and is connected, the other end of pivot with eccentric motor is connected, eccentric motor drives first framework rotates and is circular motion.

7. The laser projection lantern of claim 6, wherein said third frame inner guide slot engages said second frame vertically outer surface, and said second frame inner guide slot engages said first frame horizontally outer surface; the third frame body inner side guide groove is attached to the outer side surface of the second frame body in the horizontal direction, and the second frame body inner side guide groove is attached to the outer side surface of the first frame body in the vertical direction.

8. A laser projection lantern as described in claim 2 wherein said drive unit is an eccentric motor; the reciprocating unit further comprises:

a frame body, wherein the surface of the frame body is provided with a pattern unit, the pattern unit is engraved with a microstructure picture taking a frame as a unit,

the laser can be directly irradiated onto the pattern unit;

the one end of pivot with eccentric motor is connected, the other end of pivot with the framework rotates and is connected, eccentric motor drives the framework rotates and is circular motion.

9. A laser projection lantern as claimed in claim 2, including:

the driving unit is a common motor; the reciprocating unit further comprises:

the laser device comprises a frame body, wherein a pattern unit is manufactured on the surface of the frame body, a microstructure picture taking a frame as a unit is engraved on the pattern unit, and the laser can be directly irradiated onto the pattern unit;

the sheet metal part is arranged above the frame body, the sheet metal part is at least provided with a first through hole and a second through hole, the laser light source is at least provided with a first laser light source and a second laser light source, the first laser light source and the second laser light source are different in color, the first laser light source directly irradiates the pattern unit through the first through hole, and the second laser light source directly irradiates the pattern unit through the second through hole;

one end of the rotating shaft is connected with the sheet metal part, and the other end of the rotating shaft is rotatably connected with the connecting piece;

one end of the connecting piece is rotatably connected with one end of the rotating shaft, and the other end of the connecting piece is connected with the frame body;

a linkage unit; the driving shaft of the common motor is connected with the linkage unit;

and the second rotating shaft is linked with the rotating shaft through the linkage unit.

10. The laser projection lantern of claim 9, further comprising a linkage unit including a first gear, a second gear and a third gear, wherein one end of the second shaft is rotatably connected to the connecting member, the other end of the second shaft is connected to the sheet metal member through the third gear, the shaft is connected to the sheet metal member through the second gear, the first gear is engaged with the second gear and the third gear, and a driving shaft of a common motor is connected to any one of the gears in the linkage unit.