Optical system scheme with object surrounding lighting function and lamp applying optical system scheme

Abstract

The invention discloses an optical system with an object surrounding illumination function. The optical system comprises an optical generation module, an optical modulation module, a light deflection module and a control driving module. The optical generation module comprises at least one laser emission unit; the optical modulation module comprises two orthogonally arranged high-frequency galvanometer devices, and each high-frequency galvanometer device comprises a high-frequency driving mechanism and a reflecting element; the control driving module is used for synchronously controlling the light output of the laser emitting unit and the mechanical movement of the high-frequency galvanometer device; wherein the instantaneous deflection planes of the reflection elements are perpendicular to each other to form a two-dimensional optical scanning coordinate system, and the working surfaces of the reflection elements are configured to generate a reflection effect on an incident light beam; the light deflection module comprises a conical reflecting surface unit; the aperture surrounds an object and is continuous, and light spot separation caused by vibration of the object is avoided.

Description

Technical Field

[0001] The invention relates to the technical field of optical lighting, and in particular discloses an optical system solution with a surround object lighting function and a lamp using the solution. Background Art

[0002] In the prior art, the standard galvanometer scanning angle is usually ±11°, and the maximum mechanical scanning angle is ±15°, which results in the projection light being limited to a narrow range and the inability to achieve a closed halo with large-angle light emission. For example, China Authorization Announcement No. CN207922067U, the authorization announcement date is September 28, 2018, which discloses a galvanometer decorative lamp. The purpose of the invention is to provide a galvanometer decorative lamp with a simple structure, low cost, easy assembly and long service life that can solve the problems of stiff projection images and unclear effects. The purpose of the present invention is achieved as follows: a galvanometer decorative lamp, including a decorative lamp substrate, on which at least one laser module capable of emitting laser is arranged; the decorative lamp substrate is provided with two mutually perpendicular galvanometer devices that can swing back and forth, and one end of the galvanometer device is provided with a one-way reflective lens; the one-way reflective lens is used to swing back and forth and scan the laser emitted from the laser module to produce a dynamic effect. Due to the limited scanning angle of the existing technology, the light reflected by the galvanometer device can only directly form a pattern, the projected light cannot cover a large area, and a closed halo cannot be achieved around the object. In view of this situation, improvement is urgently needed. Summary of the invention

[0003] Based on this, it is necessary to provide an optical system solution with surround object lighting function to address the existing technical problems, so that the aperture surrounds the object, and the aperture is continuous, and there will be no light spot separation due to the vibration of the object.

[0004] In order to solve the problems of the prior art, the present invention discloses an optical system solution with a surround object lighting function, comprising an optical generation module, an optical modulation module, a light deflection module, and a control drive module;

[0005] The optical generation module comprises at least one laser emission unit;

[0006] The optical modulation module comprises two orthogonally arranged high-frequency galvanometer devices, each of which comprises a high-frequency driving mechanism and a reflective element;

[0007] The control driving module is used to synchronously control the light output of the laser emitting unit and the mechanical movement of the high-frequency galvanometer device; wherein the instantaneous deflection planes of the reflective element are perpendicular to each other to form a two-dimensional optical scanning coordinate system, and the working surface of the reflective element is configured to produce a reflection effect on the incident light beam;

[0008] The light deflection module includes a conical reflecting surface unit; the light deflection module is used to first change the light output angle in the horizontal direction of the laser emitted by the laser emitting unit through a high-frequency galvanometer device in the horizontal deflection direction, and then change the light output angle in the vertical direction through a high-frequency galvanometer device in the vertical deflection direction. Finally, the laser with offsets in both the horizontal and vertical directions is reflected by the conical reflecting surface unit to a spatial plane, forming an aperture similar to the light output shape after scanning by the high-frequency galvanometer device. When the optical system solution is used at the top of an object, a closed light ring surrounding the object is formed.

[0009] Preferably, the optical generation module includes three lasers and a light mixing system.

[0010] Preferably, a beam expander is installed at the light output port of the laser emitting unit.

[0011] Preferably, the adjustment range of the cone angle θ of the conical reflecting surface unit satisfies that the diameter D of the ground projection light spot is positively correlated with the cone angle θ.

[0012] A lamp includes a lamp body, and the lamp body is configured as a lamp adopting the above optical system solution.

[0013] The beneficial effects of the present invention are as follows: By setting the light deflection module, the light deflection module is used to first change the light output angle in the horizontal direction of the laser emitted by the laser emitting unit through a light deflection unit in the horizontal deflection direction, and then change the light output angle in the vertical direction through a light deflection unit in the vertical deflection direction. Finally, the laser with offsets in both the horizontal and vertical directions is reflected by the conical reflecting surface unit to a spatial plane. Due to the small divergence angle of the laser, under the rapid scanning of the high-frequency galvanometer device, the laser can achieve a surface light source effect on a certain surface due to the visual persistence of the human eye. Therefore, an aperture similar to the light output shape after scanning by the high-frequency galvanometer device is formed. When the optical system solution is used at the top of an object, a closed light ring surrounding the object is formed, and the light ring is continuous and there will be no separation of light spots due to the vibration of the article. Description of the Drawings

[0014] Figure 1 It is a schematic diagram of the present invention.

[0015] Figure 2 It is a schematic diagram of the simulation effect of red, green, blue, and white light in the present invention.

[0016] Figure 3 It is a schematic diagram of the laser deflection state structure of the present invention Figure 1 .

[0017] Figure 4 It is a schematic diagram of the laser deflection of the present invention Figure 1 .

[0018] Figure 5 It is a schematic diagram of the laser deflection state structure of the present inventionFigure 2 .

[0019] Figure 6 Schematic diagram of laser deflection according to the present invention Figure 2 .

[0020] Figure 7 Schematic diagram of the structure of the laser deflection state according to the present invention Figure 3 .

[0021] Figure 8 Schematic diagram of laser deflection according to the present invention Figure 3 .

[0022] Figure 9 Schematic diagram of the structure of the laser deflection state according to the present invention Figure 4 .

[0023] Figure 10 Schematic diagram of laser deflection according to the present invention Figure 4 .

[0024] Figure 11 Schematic diagram of the usage state of a lighting fixture according to the present invention Figure 1 .

[0025] Figure 12 Schematic diagram of the usage state of a lighting fixture according to the present invention Figure 2 .

[0026] Figure 13 Schematic diagram of the usage state of a lighting fixture according to the present invention Figure 3 .

[0027] Reference numerals are: optical generation module 10, optical modulation module 12, light deflection module 13, control and drive module 11, laser 14. Detailed implementation manners

[0028] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation manners.

[0029] Refer to Figures 1 to 10 .

[0030] The present invention discloses an optical system solution with a function of illuminating a surrounding object, including an optical generation module 10, an optical modulation module 12, a light deflection module 13, and a control and drive module 11;

[0031] The optical generation module 10 includes at least one laser emission unit;

[0032] The optical modulation module 12 includes two orthogonally arranged high-frequency galvanometer devices, and each high-frequency galvanometer device includes a high-frequency drive mechanism and a reflection element;

[0033] The control and drive module 11 is used to synchronously control the light output of the laser emission unit and the mechanical movement of the high-frequency galvanometer device; wherein, the instantaneous deflection planes of the reflection elements are perpendicular to each other, constituting a two-dimensional optical scanning coordinate system, and the working surfaces of the reflection elements are configured to produce a reflection effect on the incident light beam;

[0034] The light deflection module 13 includes a conical reflection surface unit; the light deflection module 13 is used to first change the light output angle in the horizontal direction of the laser 14 emitted by the laser emission unit through the high-frequency galvanometer device in the horizontal deflection direction, and then change the light output angle in the vertical direction through the high-frequency galvanometer device in the vertical deflection direction. Finally, the laser with offsets in both the horizontal and vertical directions is reflected by the conical reflection surface unit to the spatial plane, forming an aperture similar to the light output shape after scanning by the high-frequency galvanometer device. When the optical system solution is used at the top of an object, a closed light ring surrounding the object is formed.

[0035] A beam expander is installed at the light output port of the laser emission unit. Since the divergence angle of the laser determines the degree of beam divergence and directly affects the spot size, in this embodiment, the divergence angle is compressed by the beam expander, thereby controlling the thickness of the spot line.

[0036] The adjustment range of the cone angle θ of the conical reflection surface unit satisfies that the diameter D of the ground projection spot is positively correlated with the cone angle θ. That is, by changing the conical angle θ of the conical reflection surface unit, the final light output angle can be changed to change the range of the aperture on the ground.

[0037] The optical generation module 10 includes three lasers and a light mixing system. Through such a structural setting, a color aperture can be realized. In actual use, red, green, and blue primary color lasers are used. After being focused by a lens group, they are input into a light mixing rod group, and spatial-differentiated light mixing is realized by total reflection. The light mixing rod can be equipped with a rotating mechanism to optimize the uniformity, and finally beam shaping and projection imaging are realized through a secondary lens group and a DMD device.

[0038] In this embodiment, the laser emission unit has good collimation. Due to the small laser divergence angle, under the rapid scanning of the two high-frequency galvanometer devices, the laser can achieve a surface light source effect on a certain surface due to the visual persistence of the human eye. The aperture formed in this embodiment is continuous and will not have spot separation due to object vibration.

[0039] Reference Figures 3 - 4 As shown in the schematic diagram of the laser deflection state of the present invention Figure 1 , the laser incident angle of the first high-frequency galvanometer device is 45°, the included angle between the light beam reflected by the first high-frequency galvanometer device and the second high-frequency galvanometer device is 45°, and the finally emitted light beam of the conical reflection surface unit has no deflection.

[0040] Reference Figures 5 - 6 As shown in the schematic diagram of the laser deflection state of the present invention Figure 2, the first high-frequency galvanometer device deflects counterclockwise by 6°. The laser incident angle of the first high-frequency galvanometer device is 39°. The angle between the light reflected by the first high-frequency galvanometer device and the second high-frequency galvanometer device is 46.239 degrees, and the finally emitted light of the conical reflecting surface unit is deflected.

[0041] Reference Figures 7 - 8 As shown, the schematic diagram of the laser deflection state of the present invention Figure 3 , when the included angle between the reflecting surface of the conical reflecting surface unit and the horizontal direction is 25°, the included angle between the emitted light and the horizontal direction is 28°

[0042] Reference Figures 9 - 10 As shown, the schematic diagram of the laser deflection state of the present invention Figure 4 , when the included angle between the reflecting surface of the conical reflecting surface unit and the horizontal direction is 20°, the included angle between the emitted light and the horizontal direction is 48°, and the aperture diameter of the light spot emitted to the same distance of the illuminated surface will be smaller than that of the 25° conical surface.

[0043] Reference Figures 11 to 13 As shown, a lighting fixture includes a lamp body. The lamp body is configured as a lighting fixture adopting the above optical system solution, such as an automotive ground lighting lamp. Placing the lighting fixture as an automotive ground lighting lamp on the roof of the vehicle, an aperture can be formed around the vehicle,

[0044] and the aperture is continuous and there will be no separation of light spots due to the vibration of the vehicle.

[0045] The above embodiments only represent various implementation manners of the present invention. The description is relatively specific and detailed, but it cannot be understood as a limitation to the scope of the invention patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the invention patent of the present invention shall be subject to the appended claims.

Claims

1. An optical system solution with a function of illuminating a surrounding object, characterized in that, It includes an optical generation module (10), an optical modulation module (12), an optical deflection module (13), and a control and drive module (11); The optical generation module (10) includes at least one laser emission unit; The optical modulation module (12) includes two orthogonally arranged high-frequency galvanometer devices, and each high-frequency galvanometer device includes a high-frequency drive mechanism and a reflection element; The control and drive module (11) is used to synchronously control the light output of the laser emission unit and the mechanical movement of the high-frequency galvanometer device; wherein, the instantaneous deflection planes of the reflection elements are perpendicular to each other, forming a two-dimensional optical scanning coordinate system, and the working surfaces of the reflection elements are configured to produce a reflection effect on the incident light beam; The optical deflection module (13) includes a conical reflection surface unit; the optical deflection module (13) is used to first change the light output angle in the horizontal direction of the laser (14) emitted by the laser emission unit through the high-frequency galvanometer device in the horizontal deflection direction, and then change the light output angle in the vertical direction through the high-frequency galvanometer device in the vertical deflection direction. Finally, the laser with offsets in both the horizontal and vertical directions is reflected by the conical reflection surface unit to the spatial plane, forming an aperture similar to the light output shape after scanning by the high-frequency galvanometer device. When the optical system solution is used at the top of an object, a closed light ring surrounding the object is formed.

2. The optical system solution with a function of illuminating a surrounding object according to claim 1, characterized in that, The optical generation module (10) includes three lasers and a light mixing system.

3. The optical system solution with a surrounding object illumination function according to claim 1 or 2, characterized in that, A beam expander is installed at the light output port of the laser emission unit.

4. The optical system solution with the function of illuminating a surrounding object according to claim 3, characterized in that, The adjustment range of the cone angle θ of the conical reflection surface unit satisfies that the diameter D of the ground projection spot is positively correlated with the cone angle θ.

5. A lighting fixture, comprising a lamp body, characterized in that, The lamp body is set as a lamp adopting the optical system solution described in claims 1-4.

Images