Light path structure of dodging lamp

Abstract

The light path structure of the dodging lamp comprises a light source and a dodging lens set, and the dodging lens set comprises a collimating lens, a Fresnel lens and a fly's-eye lens which are sequentially arranged in the light emitting direction of the light source at intervals; the collimating lens is configured to converge light emitted by the light source in the optical axis direction to form collimated light and transmit the collimated light to the Fresnel lens, and the Fresnel lens is configured to converge the collimated light in the optical axis direction to form highly collimated light and transmit the highly collimated light to the fly's-eye lens. And the fly-eye lens is configured to uniformly process the highly collimated light to form uniform collimated light and transmit the uniform collimated light to the outside. According to the invention, high efficiency of the light emitted by the light source in the transmission process is ensured, and light loss is reduced. Light beams of the point light source are converged into optical parallel light with the light uniformizing characteristic through the lens set, and the light utilization rate is higher than 95%.

Description

Technical Field

[0001] The present application relates to the field of lamps, and in particular to a light path structure of a uniform light lamp. Background Art

[0002] At present, there are two core designs for products that achieve the uniform light function: one is the patent for "an LED lamp with a uniform light structure" (patent number: 2021234407223). Through the setting of LED lamp tubes and reflective curtains, when the light source is scattered on the reflective surface, it will reflect to the soft light curtain to achieve the soft light function. The other is the patent for "a uniform light output device and LED uniform light fixture" (patent number: 201911416110.5). Through the uniform light emitter, light source and mounting substrate, the light emitted by the light source is reflected by the optical surface in the optical cavity to achieve uniform light output.

[0003] With respect to the above-mentioned related technologies, the applicant believes that the above-mentioned two reflective light homogenizing devices have sacrificed the directionality of the light emitted by the desk lamp in order to achieve uniform light output. They have the following defects:

[0004] 1. The former uses diffused light from a soft light curtain, which has poor directionality. It only achieves uniform light intensity distribution at the level of the naked eye, but does not solve the problem in terms of optical path design, which is only a temporary solution.

[0005] 2. The latter patent has a single light outlet, and its optical path design has improved the directivity compared with the first patent, but there are still a lot of off-axis light that is not effectively utilized. The additional light diffuser increases the size of the lamp head, making it bulky and heavy. In addition, from its principle diagram, it is found that the parallelism of its reflected light is still very poor, and the parallelism problem is not solved from the optical path design.

[0006] 3. Both have low energy utilization rates and cause light interference to the surroundings. The desk lamp has a large amount of off-axis light outside the required area, which loses energy. And the uncontrolled off-axis light will cause unnecessary interference to the surrounding environment.

[0007] Therefore, we propose an optical path structure of a uniform light fixture to solve the above problems. Utility Model Content

[0008] The present application provides an optical path structure of a uniform light fixture, which converges a light beam of a light source into optical parallel light with uniform light characteristics through a lens group, thereby achieving high light utilization.

[0009] The optical path structure of a uniform light fixture provided in this application adopts the following technical solution:

[0010] A light path structure of a uniform light lamp comprises a light source and a uniform light lens group, wherein the uniform light lens group comprises a collimating lens, a Fresnel lens and a fly-eye lens which are sequentially arranged at intervals in the light emitting direction of the light source; the light source, the collimating lens and the Fresnel lens are all coaxially arranged, the Fresnel lens and the fly-eye lens are arranged parallel to each other, the collimating lens is configured to converge the light emitted by the light source in the direction of the optical axis to form collimated light, and transmit the light to the Fresnel lens, the Fresnel lens is configured to further converge the collimated light in the direction of the optical axis to form high collimated light, and transmit the light to the fly-eye lens, and the fly-eye lens is configured to uniformly process the high collimated light to form uniform collimated light, and transmit the uniform collimated light to the outside.

[0011] For further improvement, the light source adopts a point light source, the collimated light is light with a divergence angle within 50 degrees, the highly collimated light is light with a divergence angle within 9 degrees, and the uniform collimated light is light with a divergence angle within 19 degrees on the x-axis and 30 degrees on the y-axis.

[0012] Further improvement, the collimating lens is provided with a first aspheric surface and a second aspheric surface, the first aspheric surface is a convex surface, the Fresnel lens is located on the side of the first aspheric surface, the second aspheric surface is a concave surface, the light source is located on the side of the second aspheric surface, and the light emitted by the light source passes through the second aspheric surface and the first aspheric surface in sequence before reaching the Fresnel lens.

[0013] Further improvement, a single side of the Fresnel lens is a toothed surface, the toothed surface is a series of concentric annular grooves or protrusions, and the toothed surface is arranged toward the fly-eye lens.

[0014] Further improvement, the surface of the compound eye lens has an array structure of multiple convex small lenses.

[0015] Further improvement, the convex lenslets are distributed on both sides of the fly-eye lens, respectively recorded as front convex lenslets and back convex lenslets, wherein one side of the front convex lenslet faces the Fresnel lens, and the curvature of the front convex lenslet is smaller than the curvature of the back convex lenslet.

[0016] Further improvement includes a lamp housing, on which a plurality of light sources and a uniform light lens group distributed in a rectangular array are fixedly mounted.

[0017] Further improvement, the orthographic projection shape of the overall structure of the lamp housing and the convex small lens along the optical axis direction is a rectangle, the length direction of the convex small lens is parallel to the width direction of the lamp housing, and the width direction of the convex small lens is parallel to the length direction of the lamp housing.

[0018] For further improvement, a circuit board and a plurality of support columns are fixedly mounted on the inner bottom wall of the lamp housing, a light source and a collimating lens are fixedly mounted on the circuit board, and a Fresnel lens and a compound eye lens are fixedly mounted on the support columns.

[0019] Further improvement, the distance between the collimating lens and the Fresnel lens is greater than the distance between the Fresnel lens and the fly-eye lens.

[0020] In summary, the present application includes at least one of the following beneficial technical effects:

[0021] 1. Through the coaxial arrangement of the collimating lens, Fresnel lens and compound eye lens, the Fresnel lens and compound eye lens are arranged parallel to each other, which ensures the high efficiency of the light emitted by the light source during the transmission process and reduces the loss of light. The light beam of the point light source is converged into optical parallel light with uniform light characteristics through the lens group, and the light utilization rate is higher than 95%. Optical Parallel Light: In some optical systems, a very close to parallel light beam is produced using high-precision optical components.

[0022] 2. The collimating lens first converges the light emitted by the light source to form collimated light. The design of the light source being located at the focus of the collimating lens makes full use of the light emitted by the light source, thereby improving the lighting quality. Then the Fresnel lens further converges the collimated light toward the optical axis to form highly collimated light. The compound eye lens evenly processes the highly collimated light to form uniform collimated light, thus solving the problem of uneven light distribution in the prior art. Compared with the prior art, this solution achieves the function of uniform light while maintaining good directionality, thereby improving the lighting efficiency of the lamp.

[0023] 3. This solution reduces the design of additional light diffusers or reflectors, reduces complex reflection and light diffusers, and makes the appearance of the lamp more concise and beautiful. The clever light path design makes the lamp design more compact and avoids the problem of bulky volume. Precise light path control reduces the generation of off-axis light and reduces unnecessary light interference to the surrounding environment.

[0024] 4. The optical path structure can be adjusted according to different lighting requirements, with good flexibility and adaptability. Due to the optimization of the optical path design, the energy utilization rate is improved, the energy loss is reduced, and a more energy-saving lighting effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the optical path structure of a uniform light fixture.

[0026] Figure 2 It is a schematic diagram of the structure of a collimating lens.

[0027] Figure 3This is a schematic diagram of the structure of a Fresnel lens.

[0028] Figure 4 This is a schematic diagram of the assembly sequence of the front and back sides of the Fresnel lens and the compound eye lens.

[0029] Figure 5 It is a schematic diagram of the structure of a compound eye lens preform.

[0030] Figure 6 It is a side view of the fly-eye lens preform.

[0031] Figure 7 This is the effect diagram of the compound eye lens.

[0032] Figure 8 It is a stereoscopic diagram of the assembly of the uniform light fixture.

[0033] Fig. 9 It is a schematic diagram of the assembly relationship between the overall product and the compound eye lens.

[0034] Fig.10 It is the detector result of baffle No. 1 (a is the angle space, b is the position space, c is the position of the baffle in the light path).

[0035] Fig.11 It is the detector result of baffle No. 2 (a is the angle space, b is the position space, c is the position of the baffle in the light path).

[0036] Fig.12 It is the detector result of baffle No. 3 (a is the angle space, b is the position space, c is the position of the baffle in the light path).

[0037] Fig.13 are the three-dimensional dimensions of the first aspheric surface and the second aspheric surface.

[0038] Fig.14 is the partial three-dimensional dimension of the Fresnel lens.

[0039] Fig.15 is the three-dimensional size of the small lens on the compound eye lens.

[0040] Explanation of the reference numerals: 1. light source, 2. collimating lens, 21. first aspheric surface, 22. second aspheric surface, 3. Fresnel lens, 31. tooth surface, 4. compound eye lens, 41. small convex lens on the front side, 42. small convex lens on the back side, 5. lamp housing, 51. circuit board, 52. support column. DETAILED DESCRIPTION

[0041] The following is combined with Figure 1-12 This application is described in further detail.

[0042] The embodiment of the present application discloses a light path structure of a uniform light lamp.

[0043] This application uses accurate optical path design to create a uniform light optical lens group that can achieve the expected directionality. Whether using reflective or refractive optical element replacement, the directionality of the light can be guaranteed to achieve the expected effect after the optical path design, achieving better light utilization while eliminating redundant and heavy structures. At the same time, the effect of the compound eye is used to disperse the already converged light into more and smaller rays of light to achieve a uniform light effect.

[0044] Light source 1 can be a point light source, a line light source or a surface light source. Here, a point light source is used as a schematic explanation of the principle. Both the line light source and the surface light source adopt the scheme mentioned in this patent for optical design to ensure directionality. The overall scheme is: the point light source passes through a lens group composed of a collimator, a Fresnel mirror and a compound eye to converge the light beam of the point light source into parallel light with uniform light characteristics, and the light utilization rate is higher than 95%. The processing method of the collimator is single-point machining after molding. The Fresnel lens is formed by single-point machining. The processing method of the compound eye is molding.

[0045] In addition, for the convenience of explanation, a refractive lens design is adopted here, and the specific technical solution is as follows:

[0046] As attached Figure 1 As shown, a light path structure of a uniform light lamp includes a light source 1 and a uniform light lens group, wherein the uniform light lens group includes a collimating lens 2, a Fresnel lens 3 and a fly-eye lens 4 arranged in sequence in the light emitting direction of the light source 1; the light source 1, the collimating lens 2 and the Fresnel lens 3 are all coaxially arranged, and the Fresnel lens 3 and the fly-eye lens 4 are arranged parallel to each other, and the collimating lens 2 is configured to converge the light emitted by the light source 1 in the direction of the optical axis to form collimated light (Collimated Light), and transmit it to the Fresnel lens 3, and collimated light refers to a light beam that is very close to parallel propagation after passing through the lens system. The Fresnel lens 3 is configured to further converge the collimated light in the direction of the optical axis to form a highly collimated light (Highly Collimated Light) or a super-collimated light (Super-Collimated Light), and transmit it to the fly-eye lens 4, and the divergence of the highly collimated light beam after focusing is very small, close to ideal parallel light. The compound eye lens 4 is configured to uniformly process the high collimated light to form uniform collimated light (Uniformly Collimated Light) or uniform illumination light (Uniform Illumination Light), and transmit it to the outside. After being processed by the optical system, the light beam has high uniformity in the horizontal and vertical directions. Uniform collimated light maintains the low divergence of high collimated light, and at the same time achieves uniform light intensity distribution in the cross section, which is suitable for occasions requiring uniform illumination.

[0047] The effect of the designed optical path is: the light source 1 adopts a point light source, and the divergence angle of the idealized light source model is 180°, which emits light uniformly in all directions. The light of this light source diverges from the center point to all directions, forming a complete hemisphere. It is used as a theoretical model to help understand and analyze the propagation and distribution of light. The collimated light is light with a divergence angle within 50 degrees, the highly collimated light is light with a divergence angle within 9 degrees, and the uniform collimated light is light with a divergence angle within 19 degrees on the x-axis and 30 degrees on the y-axis.

[0048] However, the core innovation of this patent is to design the lamp path through the combination of professional optical components. It is not limited to refractive lenses. The same uniform light effect can also be designed using the method provided by this patent through reflective or reflective-refractive optical components with similar functions.

[0049] 1. Design of collimating lens

[0050] The function of the collimating lens 2 is to converge the light scattered around the point light source into the optical system to avoid the waste of its energy. The collimating lens 2 can be made of PMMA. Figure 2 The collimating lens 2 is provided with a first aspheric surface 21 and a second aspheric surface 22, the first aspheric surface 21 is a convex surface, the Fresnel lens 3 is located on the side of the first aspheric surface 21, the second aspheric surface 22 is a concave surface, and the light source 1 is located on the side of the second aspheric surface 22.

[0051] The light emitted by the light source 1 passes through the second aspheric surface 22 and the first aspheric surface 21 in sequence before reaching the Fresnel lens 3. Under the condition of ensuring the coaxiality of the point light source and the collimating lens 2, the collimating lens 2 can converge the light of the point light source toward the optical axis, so that most of the light can be transmitted to the Fresnel lens 3. The coaxial tolerance of the collimating lens 2 and the light source (i.e., the light source) is within ±0.05 mm, and the horizontal position tolerance of the collimating lens 2 and the light source is within ±0.05 mm.

[0052] As attached Fig.13 As shown, the first aspheric surface 21 and the second aspheric surface 22 are both polynomial aspheric surfaces, and the shape of the curved surface is described by the equation determined by the optical path design. Polynomial aspheric surface (PA) is a special optical surface. It is not a traditional spherical shape, but a complex aspheric shape described by a mathematical polynomial. This design is used to solve certain optical problems that occur in traditional spherical lenses during imaging, such as spherical aberration, chromatic aberration, etc.

[0053] 2. Design of Fresnel lens

[0054] As attached Figure 3As shown, in order to optimize the weight and volume of the desk lamp, the patent uses a Fresnel lens to replace the convex lens, saving volume. The Fresnel lens 3 can be made of PMMA, with a diameter of 30 mm and a total thickness of 1.5 mm. Other three-dimensional dimensions are as shown in the attached Fig.14 As shown. The Fresnel lens 3 further converges the light and transmits the light to the fly-eye lens 4. One side of the Fresnel lens 3 is a toothed surface 31, and the other side is a smooth plane facing the collimating lens. The toothed surface 31 is a series of concentric annular grooves or protrusions.

[0055] As attached Figure 4 As shown, the assembly order of the front and back sides of the Fresnel lens 3 and the fly-eye lens 4 is as follows: the tooth surface 31 of the Fresnel lens 3 is arranged toward the fly-eye lens 4. The exit surface of the Fresnel lens is designed as a tooth surface, which can effectively focus the light. This focusing effect makes the Fresnel lens very useful in applications that require high brightness and concentrated light. Compared with traditional curved surfaces, the manufacturing process of the tooth surface is simpler and less material is used. This makes the Fresnel lens lighter and more economical than a traditional convex lens. The design of the tooth surface makes the light evenly distributed on the surface of the lens, thereby producing uniform brightness in the illuminated area.

[0056] The distance between the collimating lens 2 and the Fresnel lens 3 is greater than the distance between the Fresnel lens 3 and the compound eye lens 4. The former has a distance of 12.64 mm and the latter has a distance of 1.8 mm. The tolerance range of the axial distance is 0.1 to 0.2 mm. The distance between lenses is an important design parameter, which directly affects the performance and imaging quality of the optical system. The lens spacing affects the distribution of the luminous flux and the uniformity of the light spot. Properly adjusted lens spacing can make the light more evenly distributed in the lighting area and reduce the uneven brightness. Optimize the distribution of the luminous flux so that the light covers the entire lighting area more evenly and reduces the brightness difference between the center and the edge of the light spot. Systematically balancing the luminous flux, uniformity and lens spacing can obtain a lighting system that is both efficient and comfortable.

[0057] 3. Design of compound eye lens

[0058] In the uniform light illumination design, the compound eye lens is usually composed of multiple small lenses, which can be convex lenses or concave lenses, depending on the design goal. When the light diffusion near the light source is large in the lighting system, a convex lens is used to refocus the light at a farther position to achieve uniform illumination and high light efficiency. The compound eye lens 4 can be made of PMMA material with a thickness of about 1.68 mm. Figure 5 As shown, in this design, the double sides of the fly-eye lens 4 have an array structure of multiple convex small lenses. The convex small lenses can produce directional lighting or enhance the brightness of a specific area.

[0059] As attached Figure 6As shown, the curvature of the front convex lenslet 41 facing the Fresnel lens 3 is smaller than the curvature of the back convex lenslet 42, and the curvature of the back convex lenslet 42 is steeper. The curvature and other parameters are shown in the attached Fig.15 As shown. The positions of the front convex small lens 41 and the back convex small lens 42 correspond one to one. The small curvature of the front convex small lens 41 can reduce the reflection loss of light on the lens surface, thereby improving the penetration of light and the light efficiency of the system. The degree of bending of light when incident is low, which helps to control the path of light so that light can pass through the lens more evenly, thereby reducing light scattering and distortion. The large curvature of the back convex small lens 42 helps to improve the uniformity of the light spot. Light will diverge outward from the center of the lens. This divergence is due to the large curvature of the exit surface, which makes the light refracted more at the edge of the lens.

[0060] The directionality of the light converged by the front lens group has been guaranteed, but the uniform distribution is not guaranteed. In order to achieve uniform distribution of light without destroying the parallelism of the light, this patent adopts the structure of a compound eye to achieve uniform processing of light. The compound eye can mix the object space together in a convolution manner to form an image. The effect of the compound eye is shown in the attached figure. Figure 7 As shown. Applying compound eyes to desk lamps can achieve the function of uniform light.

[0061] 4. Overall structural design of uniform light fixtures (composed of 9 light sources)

[0062] As attached Figure 8 As shown, the parts of the uniform light lamp product also include a lamp housing 5, on which a plurality of light sources 1 and a uniform light lens group distributed in a rectangular array are fixedly mounted. The overall structure of the lamp housing 5 and the convex small lens on the compound eye lens 4 are both rectangular in shape in the direction of the optical axis. The size of the rectangular convex small lens is 1mm in length and 0.6mm in width. Fig. 9 As shown, when assembled, the length direction of the convex small lens is parallel to the width direction of the lamp housing 5, and the width direction of the convex small lens is parallel to the length direction of the lamp housing 5. The length and width of the two are in opposite directions, which can improve the uniform lighting effect of the long strip table lamp head.

[0063] As attached Figure 1 As shown, a circuit board 51 and a plurality of support columns 52 are fixedly mounted on the inner bottom wall of the lamp housing 5, a light source 1 and a collimating lens 2 are fixedly mounted on the circuit board 51, and a Fresnel lens 3 and a fly-eye lens 4 are fixedly mounted on the upper end of the support column 52.

[0064] 5. Optical Path Simulation Analysis

[0065] The optical path analysis is performed in the ZEMAX simulation software, and three baffles are set as detectors to detect the light effects after passing through the three lenses.

[0066] As attached Fig.10 As shown, the result of the first detector baffle: it can be observed that the light from the point light source (180 degrees) is converged toward the center within a range of 7.5mm through the collimating mirror.

[0067] The detector parameters: size 15.000WX 15.000H mm, pixels 255W X 255H, total number of hits = 10090308

[0068] Peak irradiance: 6.3697E+02 watts / cm^2

[0069] Total power: 1.7357E+02 watts

[0070] Smoothing: None

[0071] Data Type: Irradiance

[0072] Detector X: 0.0000

[0073] Detector Y: 0.0000

[0074] Detector Z: 2.0000

[0075] Detector inclination X: 0.0000

[0076] Detector inclination Y: 0.0000

[0077] Detector tilt Z: 0.0000

[0078] Position unit: mm

[0079] Unit: Watt / cm^2

[0080] Power value: omitted

[0081] As attached Fig.11 As shown, the result of the second detector baffle is: the light passing through the collimating lens to the Fresnel lens is focused within a range of 14.5mm after passing through the Fresnel lens.

[0082] The detector parameters: size 29.000WX 29.000H mm, pixels 255W X 255H, total number of hits = 8349964

[0083] Peak irradiance: 4.8993E+01 watts / cm^2

[0084] Total power: 1.4061E+02 watts

[0085] Smoothing: None

[0086] Data Type: Irradiance

[0087] Detector X: 0.0000

[0088] Detector Y: 0.0000

[0089] Detector Z: 0.0000

[0090] Detector inclination X: 0.0000

[0091] Detector inclination Y: 0.0000

[0092] Detector tilt Z: 0.0000

[0093] Position unit: mm

[0094] Unit: Watt / cm^2

[0095] Power value: omitted

[0096] As attached Fig.12 As shown in the figure, the result of the third detector baffle is that the light reaching the last compound eye converges through the compound eye, and at a use distance of 500mm, the divergence length of the light is 240mm. While ensuring normal use, the light is almost not diffused to the outside, saving energy utilization and light utilization.

[0097] The detector parameters: size 800.000WX 1200.000H mm, pixels 256W X 256H, total number of hits = 8204549

[0098] Peak irradiance: 1.0071E-01 Watt / cm^2

[0099] Total power: 1.3821E+02 watts

[0100] Smoothing: None

[0101] Data Type: Irradiance

[0102] Detector X: 0.0000

[0103] Detector Y: 0.0000

[0104] Detector Z: -0.2000

[0105] Detector inclination X: 0.0000

[0106] Detector inclination Y: 0.0000

[0107] Detector inclination Z:90.0000

[0108] Position unit: mm

[0109] Unit: Watt / cm^2

[0110] Power value: omitted

[0111] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. An optical path structure of a uniform light fixture, comprising a light source (1) and a uniform light lens group, characterized in that: The light homogenizing lens group comprises a collimating lens (2), a Fresnel lens (3) and a fly-eye lens (4) which are arranged in sequence and spaced apart in the light emitting direction of the light source (1); the light source (1), the collimating lens (2) and the Fresnel lens (3) are all coaxially arranged, the Fresnel lens (3) and the fly-eye lens (4) are arranged parallel to each other, the collimating lens (2) is configured to converge the light emitted by the light source (1) in the direction of the optical axis to form collimated light, and transmit the light to the Fresnel lens (3), the Fresnel lens (3) is configured to further converge the collimated light in the direction of the optical axis to form highly collimated light, and transmit the light to the fly-eye lens (4), and the fly-eye lens (4) is configured to uniformly process the highly collimated light to form uniform collimated light, and transmit the uniform collimated light to the outside.

2. The light path structure of the uniform light fixture according to claim 1, characterized in that: The light source (1) is a point light source, the collimated light is light with a divergence angle within 50 degrees, the highly collimated light is light with a divergence angle within 9 degrees, and the uniform collimated light is light with a divergence angle within 19 degrees on the x-axis and within 30 degrees on the y-axis.

3. The light path structure of the uniform light fixture according to claim 1, characterized in that: The collimating lens (2) is provided with a first aspheric surface (21) and a second aspheric surface (22); the first aspheric surface (21) is a convex surface; the Fresnel lens (3) is located on the side of the first aspheric surface (21); the second aspheric surface (22) is a concave surface; the light source (1) is located on the side of the second aspheric surface (22); and the light emitted by the light source (1) passes through the second aspheric surface (22) and the first aspheric surface (21) in sequence before reaching the Fresnel lens (3).

4. The light path structure of the uniform light fixture according to claim 1, characterized in that: A single surface of the Fresnel lens (3) is a toothed surface (31), the toothed surface (31) being a series of concentric annular grooves or protrusions, and the toothed surface (31) is arranged toward the fly-eye lens (4).

5. The light path structure of the uniform light fixture according to claim 1, characterized in that: The surface of the compound eye lens (4) has an array structure of multiple convex small lenses.

6. The light path structure of the uniform light fixture according to claim 5, characterized in that: The convex small lenses are distributed on both sides of the compound eye lens (4), and are respectively recorded as a front convex small lens (41) and a back convex small lens (42), wherein one side of the front convex small lens (41) faces the Fresnel lens (3), and the curvature of the front convex small lens (41) is smaller than the curvature of the back convex small lens (42).

7. The light path structure of the uniform light fixture according to claim 5, characterized in that: It also comprises a lamp housing (5), on which a plurality of light sources (1) distributed in a rectangular array and a light homogenizing lens group are fixedly mounted.

8. The light path structure of the uniform light fixture according to claim 7, characterized in that: The overall structural shape of the lamp housing (5) and the raised small lens is a rectangle; the length direction of the raised small lens is parallel to the width direction of the lamp housing (5); and the width direction of the raised small lens is parallel to the length direction of the lamp housing (5).

9. The light path structure of the uniform light fixture according to claim 7, characterized in that: A circuit board (51) and a plurality of support columns (52) are fixedly mounted on the inner bottom wall of the lamp housing (5); a light source (1) and a collimating lens (2) are fixedly mounted on the circuit board (51); and a Fresnel lens (3) and a compound eye lens (4) are fixedly mounted on the support columns (52).

10. The light path structure of the uniform light fixture according to claim 1, characterized in that: The distance between the collimating lens (2) and the Fresnel lens (3) is greater than the distance between the Fresnel lens (3) and the fly-eye lens (4).

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