CN108802964B - Optical fiber scanning projection objective and optical fiber scanning projection equipment - Google Patents

Optical fiber scanning projection objective and optical fiber scanning projection equipment Download PDF

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CN108802964B
CN108802964B CN201711454398.6A CN201711454398A CN108802964B CN 108802964 B CN108802964 B CN 108802964B CN 201711454398 A CN201711454398 A CN 201711454398A CN 108802964 B CN108802964 B CN 108802964B
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lens
optical fiber
fiber scanning
scanning projection
projection objective
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CN108802964A (en
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周旭东
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Chengdu Idealsee Technology Co Ltd
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Chengdu Idealsee Technology Co Ltd
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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/20—Lamp housings

Abstract

The invention discloses an optical fiber scanning projection objective and an optical fiber scanning projection device, wherein the optical fiber scanning projection objective comprises six lenses and a diaphragm which are arranged on a common optical axis, and the six lenses and the diaphragm are sequentially arranged from the position facing a projection image plane: a first lens having a negative optical power; a second lens having a positive optical power; a diaphragm; a third lens having a negative optical power; a fourth lens having a positive optical power; and the fifth lens and the sixth lens are combined to form a lens group with positive focal power. Due to the adoption of the technical scheme including the separation of the positive lens and the negative lens and the meniscus lens, the optical fiber scanning projection objective lens in the embodiment of the invention can realize the correction of the curved image scanned and output by the optical fiber, avoid the situation of overlarge field curvature of the image after the curved image scanned and output by the optical fiber is amplified and projected, and ensure the visual effect provided for a user by the optical fiber scanning.

Description

Optical fiber scanning projection objective and optical fiber scanning projection equipment
Technical Field
The invention relates to the field of optical lenses, in particular to an optical fiber scanning projection objective and an optical fiber scanning projection device.
Background
The optical fiber scanning means that the scanning optical fiber is controlled to regularly vibrate, the light beam emitted by the optical fiber is subjected to color modulation, and an accurate control algorithm is used, so that the purpose of outputting an image can be realized by combining the persistence of vision effect of human eyes after the light beam is incident on a projection screen.
However, referring to fig. 1, fig. 1 is a schematic diagram of a fiber scanning device in the prior art, as shown in fig. 1, a portion of a scanning fiber 101 extending out of a scanning device 102 is referred to as a fiber cantilever 1011, the fiber cantilever 1011 substantially forms a curved surface 103 with the length of the fiber cantilever 1011 as a radius during scanning, and after an image scanned and output by the fiber is enlarged, the periphery of the image projected on a projection screen is distorted significantly, which seriously affects the visual effect.
Therefore, the prior art has the technical problem that the periphery of a projected image is obviously distorted due to the fact that the optical fiber scans and outputs the curved image.
Disclosure of Invention
The embodiment of the invention provides an optical fiber scanning projection objective and an optical fiber scanning projection device, which are used for solving the technical problem that the periphery of a projected image is obviously distorted due to the fact that a curved image is output by optical fiber scanning in the prior art.
In order to achieve the above object, a first aspect of the embodiments of the present invention provides an optical fiber scanning projection objective, which includes six lenses disposed on a common optical axis and a stop, and sequentially disposed from facing a projection image plane: a first lens having a negative optical power; a second lens having a positive optical power; a diaphragm; a third lens having a negative optical power; a fourth lens having a positive optical power; a fifth lens having a positive power and a sixth lens having a negative power, the fifth lens and the sixth lens combining to form a double cemented lens group having a positive power;
each lens satisfies the following relation: -2.5<f1/fw<-2.0、4<f2/fw<4.6、-4<f3/fw<-2.5、2<f4/fw<2.5、8<fg/fw<30 and 0.05<f5/fg<0.2、-0.2<f6/fg<-0.01; wherein f is1Is the focal length of the first lens, f2Is the focal length of the second lens, f3Is the focal length of the third lens, f4Is the focal length of the fourth lens, f5Is the focal length of the fifth lens, f6Is the focal length of the sixth lens, fgA focal length of a lens group combining the fifth lens and the sixth lens, fwThe total focal length of the projection objective is scanned for the optical fiber.
Optionally, all lenses in the optical fiber scanning projection objective are glass lenses;
the refractive index of each lens satisfies the following relation: 1.50<n1<1.55、1.68<n2<1.72、1.68<n3<1.72、1.68<n4<1.72、1.68<n5<1.72，1.75<n6<1.8; wherein n is1Is the refractive index of the first lens, n2Is the refractive index of the second lens, n3Is the refractive index of the third lens, n4Is the refractive index of the fourth lens, n5Is a refractive index of the fifth lens, n6Is the refractive index of the sixth lens.
Optionally, the abbe number of each lens satisfies the following relation: 60<v1<65、52<v2<56、52<v3<56、52<v4<56、52<v5<56、23<v6<27; wherein v is1Is the Abbe number, v, of the first lens2Is the Abbe number, v, of the second lens3Is Abbe number, v, of the third lens4Is Abbe number, v, of the fourth lens5Is Abbe number, v, of the fifth lens6Is the abbe number of the sixth lens.
Optionally, the first lens is a plano-concave lens, and a concave surface of the first lens faces the second lens;
the second lens is a meniscus lens, and the convex surface of the meniscus lens faces the diaphragm;
the third lens is a meniscus lens with a convex surface facing the diaphragm;
the fourth lens is a convex lens;
the fifth lens is a convex lens;
the sixth lens is a concave lens, and the convex surface of the fifth lens is attached to the concave surface of the sixth lens.
Optionally, the fifth lens is made of crown glass and the sixth lens is made of high dispersion flint glass.
A second aspect of the embodiments of the present invention provides an optical fiber scanning projection apparatus, where the optical fiber scanning projection apparatus includes a processor, a light source, an optical fiber scanning device, and the optical fiber scanning projection objective lens according to the first aspect, where the processor is connected to the light source and the optical fiber scanning device, respectively, and the light source is connected to the optical fiber scanning device; the optical fiber scanning projection objective is arranged at the emergent end of the optical fiber scanning device.
Optionally, the light source includes a red light emitting unit, a green light emitting unit, a blue light emitting unit, and a light combining device.
Optionally, the optical fiber scanning projection apparatus further includes an optical coupling unit disposed between the light source and the optical fiber scanning device.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
1. due to the adoption of the technical scheme of the separation of the positive lens and the negative lens and the inclusion of the meniscus lens, the optical fiber scanning projection objective lens in the embodiment of the invention can realize the correction of the curved image scanned and output by the optical fiber, avoid the situation of overlarge field curvature of the image after the curved image scanned and output by the optical fiber is amplified and projected, and ensure the visual effect provided for a user by the optical fiber scanning;
2. the fifth lens is a crown glass convex lens with low dispersion, the sixth lens is a flint glass concave lens with high dispersion, and the double-cemented lens group formed by the fifth lens and the sixth lens is used for eliminating chromatic aberration of the whole optical fiber scanning projection objective lens and ensuring the color effect of an image emitted from the optical fiber scanning projection objective lens.
Drawings
FIG. 1 is a schematic diagram of a prior art optical fiber scanning device;
FIG. 2 is a schematic structural diagram of an optical fiber scanning projection objective lens according to an embodiment of the present invention;
FIG. 3 is a diagram of a transfer function of an optical system of an optical fiber scanning projection objective according to an embodiment of the present invention;
FIG. 4 is a diagram of the system field curvature and distortion of an optical system of an optical fiber scanning projection objective provided by an embodiment of the present invention;
FIG. 5 is a schematic diagram of an optical system of an optical fiber scanning projection objective according to an embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a light scanning projection apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a light source in an optical scanning projection apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the invention provides an optical fiber scanning projection objective and an optical fiber scanning projection device, which are used for solving the technical problem that the periphery of a projected image is obviously distorted due to the fact that a curved image is output by optical fiber scanning in the prior art.
Referring to fig. 2, fig. 2 is a schematic structural diagram of an optical fiber scanning projection objective lens provided in an embodiment of the present invention, as shown in fig. 2, the optical fiber scanning projection objective lens includes six lenses and a diaphragm disposed on a common optical axis, and the six lenses and the diaphragm are sequentially disposed from facing a projection image plane 221: a first lens 201 having a negative optical power; a second lens 202 having positive optical power; a diaphragm 211; a third lens 203 having negative optical power; a fourth lens 204 having positive optical power; a fifth lens 205 having positive power and a sixth lens 206 having negative power, the fifth lens and the sixth lens forming a lens group having positive power in combination;
each lens satisfies the following relation: -2.5<f1/fw<-2.0、4<f2/fw<4.6、-4<f3/fw<-2.5、2<f4/fw<2.5、8<fg/fw<30 and 0.05<f5/fg<0.2、-0.2<f6/fg<-0.01; wherein f is1Is the focal length of the first lens, f2Is the focal length of the second lens, f3Is the focal length of the third lens, f4Is the focal length of the fourth lens, f5Is the focal length of the fifth lens, f6Is the focal length of the sixth lens, fgFocal length of a lens group combining the fifth lens and the sixth lens, fwThe total focal length of the projection objective is scanned for the optical fiber. The projection image plane 211 may be a wall surface, a screen, or the like, without limitation.
It can be seen that, due to the adoption of the technical scheme of the separation of the positive lens and the negative lens and the inclusion of the meniscus lens, the optical fiber scanning projection objective lens in the embodiment of the invention can realize the correction of the curved surface image scanned and output by the optical fiber, avoid the situation of overlarge field curvature of the image after the curved surface image scanned and output by the optical fiber is amplified and projected, and ensure the visual effect provided for users by the optical fiber scanning.
In the implementation process, please refer to fig. 2, wherein the first lens, the second lens, the third lens, the fourth lens, the fifth lens and the sixth lens are glass lenses;
the refractive index of each lens satisfies the following relation: 1.50<n1<1.55、1.68<n2<1.72、1.68<n3<1.72、1.68<n4<1.72、1.68<n5<1.72，1.75<n6<1.8; wherein n is1Is the refractive index of the first lens, n2Is the refractive index of the second lens, n3Is the refractive index of the third lens, n4Is the refractive index of the fourth lens, n5Is the refractive index of the fifth lens, n6Is the refractive index of the sixth lens.
In the implementation process, please refer to fig. 2, the abbe number of each lens satisfies the following relation: 60<v1<65、52<v2<56、52<v3<56、52<v4<56、52<v5<56、23<v6<27; wherein v is1Is the Abbe number, v, of the first lens2Is Abbe number, v, of the second lens3Is Abbe number, v, of the third lens4Is Abbe number, v, of the fourth lens5Is Abbe number, v, of the fifth lens6Abbe number of the sixth lens.
In the implementation process, please refer to fig. 2, wherein the first lens is a plano-concave lens, and the concave surface of the first lens faces the second lens;
the second lens is a meniscus lens, and the convex surface of the meniscus lens faces the diaphragm;
the third lens is a meniscus lens with the convex surface facing the diaphragm,
the fourth lens is a convex lens;
the fifth lens is a convex lens;
the sixth lens is a concave lens, and the convex surface of the fifth lens is attached to the concave surface of the sixth lens.
In a specific implementation, the fifth lens and the sixth lens are combined into a double cemented lens group.
In one embodiment, the fifth lens is a low dispersion crown glass and the sixth lens is a high dispersion flint glass.
It can be seen that, since the fifth lens is a crown glass convex lens with low dispersion and the sixth lens is a flint glass concave lens with high dispersion, the double-cemented lens assembly formed by the fifth lens and the sixth lens is used for eliminating chromatic aberration of the whole optical fiber scanning projection objective lens and ensuring the color effect of the image emitted from the optical fiber scanning projection objective lens.
In the following section, the above technical solutions will be described in detail with reference to the accompanying drawings and data tables.
With reference to fig. 2 and tables 1-7, tables 1-7 show specific design value examples of each lens in the second implementation of the fiber scanning projection objective, and it should be noted that in tables 1-7, a positive curvature radius value indicates that the curvature center is on the right side of the surface, a negative curvature radius value indicates that the curvature center is on the left side of the surface, and "infinity" indicates infinity.
In this embodiment, the total focal length of the fiber scanning projection objective lens shown in tables 1-7 is 1.317, the field of view is 40 °, the curvature of the image plane is 2.3mm, and the included angle between the chief ray and the normal of the image plane is less than 3.5 °.
Table 1 concrete design value example of the first lens 201
Figure GDA0002503344230000051
TABLE 2 concrete design value examples for the second lens 202
Figure GDA0002503344230000052
TABLE 3 concrete design value example of diaphragm 211
Figure GDA0002503344230000061
Table 4 concrete design value example of the third lens 203
Figure GDA0002503344230000062
TABLE 5 concrete design value examples for the fourth lens 204
Figure GDA0002503344230000063
Table 6 concrete design value example of the fifth lens 205
Figure GDA0002503344230000064
Table 7 concrete design value example of the sixth lens 206
Figure GDA0002503344230000065
In practical application, the first lens 201, the second lens 202, the third lens 203, the fourth lens 204, the fifth lens 205 and the sixth lens 206 can be manufactured by using a micro-nano process and other special processes so as to meet requirements such as the thickness of the lens. Of course, those skilled in the art can also appropriately adjust parameters of each device in the short-focus projection objective according to actual conditions without affecting optical properties of the lens, so as to meet the needs of the actual conditions, and details are not described here.
Referring to fig. 3, fig. 3 is a diagram illustrating a transfer function of an optical system of an optical fiber scanning projection objective according to an embodiment of the present invention.
Referring to fig. 4, fig. 4 is a system field curvature and distortion diagram of an optical system of an optical fiber scanning projection objective lens according to an embodiment of the present invention, as shown in fig. 4, which shows that the field curvature and distortion of the optical fiber scanning projection objective lens according to the embodiment are both good.
Referring to fig. 5, fig. 5 is a schematic diagram of an optical system of an optical fiber scanning projection objective according to an embodiment of the present invention.
It can be seen that, due to the adoption of the technical scheme of the separation of the positive lens and the negative lens and the inclusion of the meniscus lens, the optical fiber scanning projection objective lens in the embodiment of the invention can realize the correction of the curved surface image scanned and output by the optical fiber, avoid the situation of overlarge field curvature of the image after the curved surface image scanned and output by the optical fiber is amplified and projected, and ensure the visual effect provided for users by the optical fiber scanning.
Based on the same inventive concept, a second aspect of the embodiments of the present invention further provides an optical fiber scanning projection apparatus, please refer to fig. 6, where fig. 6 is a schematic structural diagram of the optical fiber scanning projection apparatus provided in the embodiments of the present invention, as shown in fig. 6, the optical fiber scanning projection apparatus includes a processor 901, a light source 902, an optical fiber scanning device 903, and an optical fiber scanning projection objective 904 provided in the first aspect, where the processor 901 is connected to the light source 902 and the optical fiber scanning device 903, respectively, and the light source 902 is connected to the optical fiber scanning device 903; the processor 901 can control the optical fiber in the optical fiber scanning device 903 to scan according to a preset scanning track, and can also control the light source 902 to emit light rays with corresponding colors of corresponding track points; the light source 902 is connected with the optical fiber scanning device 903, namely, the light emitted by the light source 902 can be guided into the optical fiber scanning device 903; the fiber scanning projection objective 904 is disposed at an exit end of the fiber scanner 903, and is configured to amplify an image output by the fiber scanning device 903, where the fiber scanning projection objective 904 has been described in detail in the foregoing section, and is not described herein again for brevity of the description.
Therefore, the optical fiber scanning projection device can output the image to be projected, which is not described herein again.
In a specific implementation process, referring to fig. 7, fig. 7 is a schematic structural diagram of a light source in an optical scanning projection device according to an embodiment of the present invention, as shown in fig. 7, the light source 902 includes a red light emitting unit 9021, a green light emitting unit 9022, a blue light emitting unit 9023, and a light combining device 9024, where the light combining device 9024 is configured to combine light beams emitted by the red light emitting unit 9021, the green light emitting unit 9022, and the blue light emitting unit 9023. The red light emitting unit 9021 may be specifically a red laser light source or a red LED light source, the green light emitting unit 9022 may be specifically a green laser light source or a green LED light source, and the blue light emitting unit 9023 may be specifically a blue laser light source or a blue LED light source, which is not limited herein; in this embodiment, the light combining device 9024 includes a red light combining unit 90241 disposed at an exit end of the red light emitting unit 9021, a green light combining unit 90242 disposed at an exit end of the green light emitting unit 9022, and a blue light combining unit 90243 disposed at an exit end of the blue light emitting unit 9023; as shown in fig. 6, in this embodiment, the red light combining unit 90241 is specifically a red light reflecting filter disposed at the emitting end of the red light emitting unit 9021, the green light combining unit 90242 is specifically a red light transmitting green light reflecting filter disposed at the emitting end of the green light emitting unit 9022, and the blue light combining unit 90243 is specifically a red light reflecting blue light transmitting filter disposed at the emitting end of the blue light emitting unit 9023, so that the light beams emitted from the red light emitting unit 9021, the green light emitting unit 9022, or the blue light emitting unit 9023 can be combined together by the red light reflecting filter, the red light transmitting green light reflecting filter, and the red light transmitting blue light transmitting filter, and in other embodiments, the characteristics of the reflected light or the transmitted light of each light combining unit in the light combining device 9024 are correspondingly different according to the difference in the light path design among the red light emitting unit 9021, the green light emitting unit 9022, and the blue light emitting unit 9023, and are not intended to be limiting herein.
In a specific implementation process, please refer to fig. 6 again, the optical fiber scanning projection apparatus further includes an optical coupling unit 905, the optical coupling unit is disposed 905 between the light source 902 and the optical fiber scanning device, and the optical coupling unit 905 is configured to couple light emitted from the light source 902 into an optical fiber in the optical fiber scanning device 903. The optical coupling unit 905 may specifically be a coupling lens or the like, and is not limited herein.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" or "comprises" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The use of the words first, second, third, etc. do not denote any order, but rather the words are to be construed as names.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
1. due to the adoption of the technical scheme of the separation of the positive lens and the negative lens and the inclusion of the meniscus lens, the optical fiber scanning projection objective lens in the embodiment of the invention can realize the correction of the curved image scanned and output by the optical fiber, avoid the situation of overlarge field curvature of the image after the curved image scanned and output by the optical fiber is amplified and projected, and ensure the visual effect provided for a user by the optical fiber scanning;
2. the fifth lens is a crown glass convex lens with low dispersion, the sixth lens is a flint glass concave lens with high dispersion, and the double-cemented lens group formed by the fifth lens and the sixth lens is used for eliminating chromatic aberration of the whole optical fiber scanning projection objective lens and ensuring the color effect of an image emitted from the optical fiber scanning projection objective lens.
All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.
Any feature disclosed in this specification (including any accompanying claims, abstract and drawings), may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.
The invention is not limited to the foregoing embodiments. The invention extends to any novel feature or any novel combination of features disclosed in this specification and any novel method or process steps or any novel combination of features disclosed.

Claims (8)

1. An optical fiber scanning projection objective lens is characterized by comprising six lenses and a diaphragm which are arranged on a common optical axis, wherein the six lenses and the diaphragm are arranged in sequence from the position facing a projection image surface: a first lens having a negative optical power; a second lens having a positive optical power; a diaphragm; a third lens having a negative optical power; a fourth lens having a positive optical power; a fifth lens having a positive power and a sixth lens having a negative power, the fifth lens and the sixth lens combining to form a double cemented lens group having a positive power;
each lens satisfies the following relation: -2.5<f1/fw<-2.0、4<f2/fw<4.6、-4<f3/fw<-2.5、2<f4/fw<2.5、8<fg/fw<30 and 0.05<f5/fg<0.2、-0.2<f6/fg<-0.01; wherein f is1Is the focal length of the first lens, f2Is the focal length of the second lens, f3Is the focal length of the third lens, f4Is the focal length of the fourth lens, f5Is the focal length of the fifth lens, f6Is the focal length of the sixth lens, fgA focal length of a lens group combining the fifth lens and the sixth lens, fwThe total focal length of the projection objective is scanned for the optical fiber.
2. The fiber scanning projection objective of claim 1, wherein all lenses in the fiber scanning projection objective are glass lenses;
the refractive index of each lens satisfies the following relation: 1.50<n1<1.55、1.68<n2<1.72、1.68<n3<1.72、1.68<n4<1.72、1.68<n5<1.72，1.75<n6<1.8; wherein n is1Is the refractive index of the first lens, n2Is the refractive index of the second lens, n3Is the refractive index of the third lens, n4Is the refractive index of the fourth lens, n5Is a refractive index of the fifth lens, n6Is the refractive index of the sixth lens.
3. The fiber-scanning projection objective of claim 1, wherein the abbe number of each lens satisfies the following relation: 60<v1<65、52<v2<56、52<v3<56、52<v4<56、52<v5<56、23<v6<27; wherein v is1Is the Abbe number, v, of the first lens2Is the Abbe number, v, of the second lens3Is Abbe number, v, of the third lens4Is Abbe number, v, of the fourth lens5Is Abbe number, v, of the fifth lens6Is the abbe number of the sixth lens.
4. The fiber scanning projection objective of claim 1, wherein the first lens is a plano-concave lens, the concave surface of the first lens facing the second lens;
the second lens is a meniscus lens, and the convex surface of the meniscus lens faces the diaphragm;
the third lens is a meniscus lens with a convex surface facing the diaphragm;
the fourth lens is a convex lens;
the fifth lens is a convex lens;
the sixth lens is a concave lens, and the convex surface of the fifth lens is attached to the concave surface of the sixth lens.
5. The fiber-scanning projection objective of claim 1, characterized in that the fifth lens is made of crown glass and the sixth lens is made of high-dispersion flint glass.
6. An optical fiber scanning projection device, characterized in that the optical fiber scanning projection device comprises a processor, a light source, an optical fiber scanning device and the optical fiber scanning projection objective lens as claimed in any one of claims 1 to 5, wherein the processor is respectively connected with the light source and the optical fiber scanning device, and the light source is connected with the optical fiber scanning device; the optical fiber scanning projection objective is arranged at the emergent end of the optical fiber scanning device.
7. The fiber scanning projection device of claim 6, wherein the light source includes a red light emitting unit, a green light emitting unit, a blue light emitting unit, and a light combining means.
8. The fiber scanning projection device of claim 6, further comprising an optical coupling unit disposed between the light source and the fiber scanning device.
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