Optical system and application thereof

Abstract

The invention provides an optical system and an application thereof. The optical system at least comprises a cover plate; the shell is arranged on one side of the cover plate; the circuit board is arranged between the cover plate and the shell; a plurality of first lenses disposed between the circuit board and the housing; the second lenses are arranged between the multiple first lenses and the shell, and the sides, close to the shell, of the second lenses protrude in a sawtooth shape; the support comprises a first support body and a second support body, the first support body is arranged on the two sides of the cover plate and the shell, and the second support body is arranged between the circuit board and the first lenses. Through the optical system provided by the invention, the optical system can emit uniform light rays, and the stereoscopic impression and the aesthetic property of the optical system are improved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile accessories, and in particular to an optical system and application thereof. Background Art

[0002] As an important automotive accessory, the uniformity and aesthetics of the reading light greatly affect the customer experience. At present, the reading light of the car provides lighting to the customer through the light source and the optical pattern lampshade, which causes the reading light to have problems such as uneven lighting, lack of three-dimensional sense and unsightly appearance, which destroys the customer experience. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide an optical system and application thereof, which can make the reading lamp emit light evenly, improve the aesthetics of the reading lamp, and make the reading lamp have a three-dimensional effect.

[0004] To solve the above technical problems, the present invention is implemented through the following technical solutions.

[0005] The present invention provides an optical system, comprising:

[0006] Cover plate;

[0007] A housing, arranged on one side of the cover plate;

[0008] A circuit board, arranged between the cover plate and the housing;

[0009] A plurality of first lenses are arranged between the circuit board and the housing;

[0010] a second lens, disposed between the plurality of the first lenses and the housing, wherein a side of the second lens close to the housing is serrated; and

[0011] The bracket comprises a first bracket and a second bracket, wherein the first bracket is arranged on both sides of the cover plate and the housing, and the second bracket is arranged between the circuit board and the plurality of the first lenses.

[0012] In an embodiment of the present invention, a plurality of the first lenses are equidistantly distributed between the circuit board and the housing.

[0013] In an embodiment of the present invention, a side of the plurality of first lenses close to the housing is a plane.

[0014] In an embodiment of the present invention, a plurality of protrusions are equidistantly distributed on the second lens, and the protrusions are right triangles.

[0015] In one embodiment of the present invention, the protrusion has a protrusion height of 1.5-1.6 mm.

[0016] In one embodiment of the present invention, the inclined angle of the hypotenuse of the protrusion is 25-35°.

[0017] In one embodiment of the present invention, the optical system further comprises a reflection structure, the reflection structure is arranged between the second bracket, the first lens and the second lens, and the light transmittance of the first shell is greater than the light transmittance of the second shell.

[0018] In an embodiment of the present invention, the housing includes a first shell and a second shell, and the second shell is arranged on both sides of the first shell.

[0019] In one embodiment of the present invention, the first bracket and the second bracket are integrally provided.

[0020] The invention also discloses a reading lamp, comprising the optical system mentioned above.

[0021] In summary, the present invention provides an optical system and its application, which can focus and diffuse the light emitted by the circuit board by setting a double-layer lens and a protrusion on the second lens, so as to make the light emission more uniform. Moreover, the reading light provided by the present invention makes the reading light have a three-dimensional sense, improves the aesthetics of the reading light, and thus enhances the customer's experience.

[0022] Of course, any method of implementing the present invention does not necessarily need to achieve all of the advantages mentioned above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0024] Figure 1 FIG. 4 is a schematic diagram of a cross section of an optical system in one embodiment of the present invention.

[0025] Figure 2 Part (a) is from Figure 1 Schematic diagram of the longitudinal section of the optical system cut off by the AA plane. Figure 2 Part (b) is from Figure 1 Schematic diagram of the longitudinal section of the optical system cut along the BB plane.

[0026] Figure 3 Part (a) is a schematic diagram of the structure of the first lens observed from one side of the circuit board in one embodiment of the present invention. Figure 3 Part (b) is a schematic diagram of the structure of the first lens observed from the side of the second lens in one embodiment of the present invention.

[0027] Figure 4 Part (a) is a schematic diagram of the structure of the second lens viewed from the first lens side in one embodiment of the present invention. Figure 4 Part (b) is a schematic diagram of the structure of the second lens observed from one side of the housing in one embodiment of the present invention.

[0028] Figure 5 FIG. 4 is a schematic diagram of a protrusion on the second lens in an embodiment of the present invention.

[0029] Figure 6 FIG. 4 is an exploded view of an optical system in one embodiment of the present invention.

[0030] Figure 7 FIG. 4 is a schematic diagram of a reading light according to an embodiment of the present invention.

[0031] Figure 8 FIG. 4 is a distribution diagram of test points of a reading light in an embodiment of the present invention.

[0032] Fig. 9 This is a visual simulation effect diagram of a reading light in one embodiment of the present invention.

[0033] Description of labels:

[0034] 100. Optical system; 10. Cover plate; 11. Housing; 111. First shell; 112. Second shell; 12. Circuit board; 13. First lens; 14. Second lens; 141. Protrusion; 15. Bracket; 151. First bracket; 152. Second bracket; 1521. Protrusion; 16. Reflection structure; 17. Screw; 200. Reading light; 20. Button. DETAILED DESCRIPTION

[0035] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0036] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0037] In the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, if the terms "first" and "second" appear, they are only used for description and distinction purposes, and cannot be understood as indicating or implying relative importance.

[0038] The present invention provides an optical system and its application, which can make the optical system emit a uniform strip-shaped light-emitting surface. Moreover, the reading light provided by the present invention can make the reading light have a three-dimensional sense, make the light-emitting effect of the reading light have layers, improve the aesthetics of the reading light, and thus enhance the customer's experience. The optical system provided by the present invention can be used in various forms of light-emitting devices to improve the light-emitting uniformity of the light-emitting devices.

[0039] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the optical system 100 provided by the present invention includes a cover plate 10, a housing 11, a circuit board 12, a first lens 13, a second lens 14, a first bracket 151, a second bracket 152 and a reflective structure 16, etc. Among them, the second lens 14 has a sawtooth protrusion 141 on one side close to the housing 11. Through the first lens 13 and the second lens 14, and the protrusion 141 on the second lens 14, the optical system 100 provided by the present invention can further focus and diffuse the light emitted by the circuit board 12 to form a uniform strip-shaped light-emitting surface, thereby improving the three-dimensional sense and aesthetics of the light-emitting system, thereby enhancing the customer experience.

[0040] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the cover plate 10 provides shielding for the circuit board 12, the first lens 13, the second lens 14, the first bracket 151, the second bracket 152 and the reflective structure 16 inside the optical system 100, so as to avoid exposure of the internal components of the optical system 100 and protect the internal components of the optical system 100 from external impact. In this embodiment, the material of the cover plate 10 is, for example, one or a combination of polycarbonate, polypropylene or acrylic, so as to improve the mechanical properties, heat resistance and corrosion resistance of the optical system 100.

[0041] See also Figure 1 to Figure 2As shown, in one embodiment of the present invention, the housing 11 is disposed on one side of the cover plate 10. The material of the housing 11 is, for example, one or a combination of polycarbonate or organic glass, so as to improve the impact resistance and light transmittance of the optical system 100. In this embodiment, the housing 11 includes, for example, a first housing 111 and a second housing 112, and the second housing 112 is, for example, disposed on both sides of the first housing 111. The first housing 111 and the second housing 112 are, for example, integrally disposed, and the first housing 111 and the second housing 112 are, for example, prepared by an in-film injection molding process. In this embodiment, the light transmittance of the first housing 111 is greater than the light transmittance of the second housing 112, so that the light is concentrated on the first housing 111, thereby improving the luminous intensity of the optical system 100. The first housing 111 is, for example, a light-transmitting housing, and the light that passes through the circuit board 12, the first lens 13, and the second lens 14 successively passes through the first housing 111 and is emitted from the optical system 100, providing lighting for customers. In this embodiment, the second housing 112 is, for example, a high-gloss black housing to prevent light from the circuit board 12, the first lens 13, and the second lens 14 from emitting out of the optical system 100 from the second housing 112, thereby concentrating the light on the first housing 111 located in the middle of the second housing 112 to improve the luminous intensity of the optical system 100. The high-gloss black housing is, for example, prepared by an IML process or an INS process.

[0042] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the bracket 15 includes, for example, a first bracket 151 and a second bracket 152. The first bracket 151 is, for example, disposed on both sides of the housing 11 and the cover plate 10, and the first bracket 151, the housing 11 and the cover plate 10 surround and form an internal area of ​​the optical system 100, thereby providing shielding for the circuit board 12, the first lens 13 and the second lens 14 in the internal area of ​​the optical system to prevent impact. The second bracket 152 is, for example, disposed between the circuit board 12 and the first lens 13, and convex portions 1521 are disposed on both sides of the second bracket 152, and the convex portions 1521 extend toward one side of the first lens 13 to support the circuit board 12. In this embodiment, the first bracket 151 and the second bracket 152 are, for example, integrally disposed to enhance the overall mechanical strength of the bracket 15.

[0043] See also Figure 1 to Figure 2 As shown, in one embodiment of the present invention, the circuit board 12 is disposed between the housing 11 and the cover 10 to serve as a light source of the optical system 100. In this embodiment, the material of the circuit board 12 is, for example, glass fiber cloth.

[0044] See also Figures 1 to 3As shown, in one embodiment of the present invention, a plurality of first lenses 13 are disposed between the housing 11 and the circuit board 12. In this embodiment, the first lenses 13 are, for example, equidistantly distributed, and the first lenses 13 are, for example, focusing lenses, and are, for example, plano-convex lenses, positive concave-convex lenses, aspherical lenses, diffraction lenses, or reflecting lenses, so as to focus the light emitted by the circuit board 12 onto the first lenses 13. In this embodiment, the side of the plurality of first lenses 13 close to the housing 11 is, for example, planar, and the light entering the first lens 13 passes through the plane side of the first lens 13 close to the housing to form a uniform strip-shaped light-emitting surface, passes through the first lens 13, and enters the second lens 14.

[0045] See also Figure 1 , Figure 2 , Figure 4 and Figure 5 As shown, in one embodiment of the present invention, the second lens 14 is disposed between the first lens 13 and the housing 11. Figure 4 As shown, in this embodiment, a side of the second lens 14 close to the housing 11 is provided with a sawtooth-shaped protrusion 141, and a plurality of protrusions 141 are distributed on the second lens 14 at equal distances. Figure 5 As shown, the shape of the protrusion 141 is, for example, a polygon. In the present embodiment, the shape of the protrusion 141 is, for example, a right triangle. The protrusion height of the protrusion 141 is, for example, 1.5-1.6 mm, and for example, 1.55 mm. The inclination angle of the hypotenuse of the protrusion 141 is, for example, 25-35°, and for example, 29°. The light from the first lens 13 passes through the second lens 14 and the protrusions 141 equally distributed on the second lens 14, which can further homogenize the light, so that the side of the second lens 14 close to the housing 11 emits more uniform light. In the present embodiment, the material of the second lens 14 is, for example, one or more of transparent materials such as paraffin, glass, resin, transparent plastic or crystal, so as to improve the light transmittance of the second lens 14.

[0046] Please refer to 1 to Figure 2 As shown, in one embodiment of the present invention, the optical system 100 further includes a reflective structure 16, and the reflective structure 16 is, for example, disposed between the convex portion 1521, the first lens 13, and the second lens 14. Since the reflective structure 16 is close to the edge of the first lens 13 and the second lens 14, the reflective structure 16 can reflect the light on the edge of the first lens 13 and the second lens 14 to the middle area of ​​the first lens 13 and the second lens 14, thereby reducing the possibility of astigmatism and avoiding light loss. In this embodiment, the reflective structure 16 is, for example, a reflective bowl, and the surface of the reflective structure 16 is, for example, painted, and the painting is achieved, for example, by electroplating, so as to improve the reflectivity of the reflective structure 16 and reduce light loss.

[0047] See also Figure 1 , Figure 2 and Figure 6 As shown, in this embodiment, the cover 10, the housing 11, the circuit board 12, the first lens 13, the second lens 14, the bracket 15 and the reflective structure 16 are connected by, for example, screws 17 to connect the various accessories of the optical system 100 into one, thereby improving the overall mechanical strength of the optical system 100 to protect it from impact.

[0048] See also Figure 1 , Figure 5 and Figure 7 As shown, the present invention further provides a reading light 200, and the reading light 200 includes the above-mentioned optical system 100, that is, the optical system 100 can be applied to the reading light 200. In one embodiment of the present invention, the reading light 200 includes, for example, the optical system 100 and a button 20, etc. Among them, the optical system 100 is arranged inside the reading light 200 to provide uniform light. The button 20 is arranged on one side of the outer surface of the reading light 200 to control whether the reading light 200 emits light to meet customer needs. The reading light 200 provided by the present invention can be used as an important automobile accessory, for example, it can be installed on the top of the driver's seat and the top of the rear seat to provide customers with uniform light to meet customer needs.

[0049] See also Figure 8 As shown, the present invention performs optical simulation on the luminous effect of the reading lamp 200, and tests six test points P respectively. 0 -P 5 The light intensity of the test center point P 0 Located at the center of the reading lamp 200, and the test center point P 0 The vertical distance from the reading light 200 is 650mm. 1 , P 0 and P 5 On the same vertical line, P 1 and P 5 Equidistant distribution in P 0 on both sides, and P 1 and P 0 The distance between them is 250mm. 2 , P 3 and P 4 On the same vertical line, P 2 and P 4 Equidistant distribution in P 3 on both sides, and P 2 and P 3 The distance between them is 250mm. 3 and P 0 The distance between 4 and P 5 The distance between 2and P 1 The distance between them is the same, which is 350 mm. The reading lamp 200 is at six test points P 0 -P 5 The results of the simulated light intensity are shown in Table 1.

[0050] Table 1. Six test points P 0 -P 5 The simulated illuminance value

[0051] Test Points Illuminance value / Lux <![CDATA[P 0 ]]> 122.22 <![CDATA[P 1 ]]> 38.49 <![CDATA[P 2 ]]> 21.22 <![CDATA[P 3 ]]> 71.24 <![CDATA[P 4 ]]> 43.40 <![CDATA[P 5 ]]> 51.03

[0052] The standard requirements for car reading lights are: the illuminance at the test center point is not less than 15 Lux, and the illuminance at other locations in the test area is not less than 10 Lux. 0 -P 5 The illumination values ​​at the six locations are much higher than the standard requirements. Fig. 9 It can be seen that the reading lamp 200 provided by the present invention emits light more evenly at different positions. Therefore, the reading lamp 200 provided by the present invention emits light more evenly at different positions, and the light illumination values ​​at different positions meet the standard requirements.

[0053] In summary, the present invention provides an optical system and its application, which focuses and diffuses the light emitted by the circuit board through the first lens, the second lens and the protrusion on the second lens, so that the optical system emits uniform light. Moreover, the reading light provided by the present invention can make the lighting effect of the reading light have a three-dimensional sense and a sense of layering, improve the aesthetics of the reading light, and thus enhance the customer experience.

[0054] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An optical system, It is characterized in that At least: Cover plate; A housing, arranged on one side of the cover plate; A circuit board, arranged between the cover plate and the housing; A plurality of first lenses are arranged between the circuit board and the housing; A second lens is disposed between the plurality of the first lenses and the housing, and a side of the second lens close to the housing is serrated; as well as The bracket comprises a first bracket and a second bracket, wherein the first bracket is arranged on both sides of the cover plate and the housing, and the second bracket is arranged between the circuit board and the plurality of the first lenses.

2. The optical system according to claim 1, It is characterized in that A plurality of the first lenses are equidistantly distributed between the circuit board and the housing.

3. The optical system according to claim 1, It is characterized in that One side of the plurality of first lenses close to the housing is a plane.

4. The optical system according to claim 1, It is characterized in that A plurality of saw teeth are equidistantly distributed on the second lens, and the protrusion is a right triangle.

5. The optical system according to claim 4, It is characterized in that The protrusion has a protrusion height of 1.5-1.6 mm.

6. The optical system according to claim 4, It is characterized in that The inclined angle of the hypotenuse of the protrusion is 25-35°.

7. The optical system according to claim 1, It is characterized in that The optical system further includes a reflective structure disposed between the second bracket, the first lens, and the second lens.

8. The optical system according to claim 1, It is characterized in that The housing includes a first shell and a second shell, the second shell is arranged on both sides of the first shell, and the light transmittance of the first shell is greater than the light transmittance of the second shell.

9. The optical system according to claim 1, It is characterized in that The first bracket and the second bracket are integrally arranged.

10. A reading light comprising the optical system according to any one of claims 1 to 9.

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