CN210270234U

CN210270234U - Lens and flash lampshade of super-small R-angle optical insection

Info

Publication number: CN210270234U
Application number: CN201921292748.8U
Authority: CN
Inventors: 潘伟昌; 丁绥平
Original assignee: Guangdong Lishi Optical Co Ltd
Current assignee: Guangdong Lishi Optical Co Ltd
Priority date: 2019-08-09
Filing date: 2019-08-09
Publication date: 2020-04-07
Anticipated expiration: 2029-08-09

Abstract

The utility model belongs to the technical field of the cell-phone accessory, a lens and flash of light lamp shade of super little R angle optics insection are related to, including incident surface and emergent surface, the incident surface is the plane, the center of emergent surface is equipped with the emergent plane, the emergent surface is located the planar outer peripheral ring of emergent is equipped with fresnel groove face, fresnel groove face includes a plurality of parallel arrangement's first spotlight face and a plurality of parallel arrangement's second spotlight face, the both ends on second spotlight face are respectively through outer disc and interior disc angle and adjacent two the end-to-end connection of first spotlight face. The utility model discloses lens and flash of light lamp shade of super little R angle optics insection are when refracting light, and annular fresnel groove face can spotlight better for illuminance is high, improves the effect of shining of light, and in addition, insection and tooth's socket on the fresnel groove face combine, can regard as a plurality of independent small lens, adjust into the parallel light to light, make light distribution more even.

Description

Lens and flash lampshade of super-small R-angle optical insection

Technical Field

The utility model belongs to the technical field of the cell-phone accessory, especially, relate to a lens and flash of light lamp shade of super little R angle optics insection.

Background

The LED has high luminous efficiency, low power consumption, long service life and safety, is an environment-friendly and reliable light source, and is widely applied to various display illumination fields. The mobile phone is an essential tool in modern life, integrates various functions, one of the functions is a photographing function, photographing is carried out in an environment with insufficient light, a flashlight needs to be matched, and the flashlight of the mobile phone is generally used by matching an LED chip with a lens. The flash lens is an important component, and because the flash lens has a great influence on the shooting effect, the requirements on the flash lens are higher and higher, especially the brightness of the flash irradiated by the flash through the lens is higher, and the light irradiated by the flash through the lens is required to be flat. However, the lens for a flash lamp in the prior art cannot meet the above requirements, and therefore, it is necessary to design a lens for a flash lamp to solve the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a lens and flash of light lamp shade of super little R angle optics insection, the flash of light lamp lens that aims at solving among the prior art can not satisfy the flash of light lamp and shine through lens the luminance height that goes out to the smooth technical problem of light that the requirement was shined out through lens by the flash of light lamp.

In order to achieve the above object, an embodiment of the present invention provides a pair of lenses with ultra-small R-angle optical insections, including incident surface and emergent surface, the incident surface is a plane, the center of the emergent surface is equipped with the emergent plane, the emergent surface is located the outer peripheral ring of the emergent plane is equipped with fresnel groove surface, fresnel groove surface includes a plurality of parallel arrangement's first light gathering surface and a plurality of parallel arrangement's second light gathering surface, the both ends of second light gathering surface are respectively through outer corner and inner corner and adjacent two the end-to-end connection of first light gathering surface.

Optionally, one end of the second light condensing surface is connected with the head end of the adjacent first light condensing surface through the external fillet to form a convex insection, and the other end of the second light condensing surface is connected with the tail end of the adjacent first light condensing surface through the internal fillet to form a concave gullet.

Optionally, the depth of the gullets increases from the peripheral edge of the exit plane to the peripheral edge of the fresnel land.

Optionally, two ends of the exit plane are respectively connected to the adjacent first light-gathering surface and the second light-gathering surface, and the height of the exit plane is higher than the lowest end of the fillet and lower than the highest end of the fillet.

Optionally, the fresnel surface is formed in a plurality of concentric circles with gradually increasing radii in a top view, and the fresnel surface is formed in a connected zigzag shape in a cross-sectional view.

Optionally, the radius of the bullnose is 0.03mm and the radius of the bullnose is 0.015 mm.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the lens of super little R angle optics insection have one of following technological effect at least: the utility model discloses the lens of super little R angle optics insection in practical application, the light that the LED chip sent is thrown to the emitting face behind the incident surface on, is refracted the angle of penetrating that comes the adjustment light to light by emitting plane and fei nieer line on the emitting face again. When light is refracted, the annular Fresnel pattern surface can better condense light, so that the illumination intensity is high, and the irradiation effect of the light is improved; in addition, the combination of the tooth grooves and the tooth grooves on the Fresnel pattern surface can be regarded as a plurality of independent small lenses, light rays are adjusted into parallel light, the light rays are distributed more uniformly, the brightness of all parts of the emitted light is ensured to be consistent, and the effects of large divergence angle and light ray homogenization are achieved.

In order to achieve the above object, another embodiment of the present invention provides a flash lampshade, which comprises a transparent substrate and a lens with an ultra-small R-angle optical insection as described above, wherein the transparent substrate and the lens with the ultra-small R-angle optical insection are integrally injection molded.

The embodiment of the utility model provides an above-mentioned one or more technical scheme in the flash of light lamp shade have one of following technological effect at least: the utility model discloses flash of light lamp shade has used the lens of super little R angle optics insection, when the flash light shines, can spotlight better for illuminance is high, adjusts the parallel light into to light simultaneously, makes light distribute more evenly, guarantees that each part luminance of light is unanimous, thereby improves the effect of flash light.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.

Fig. 1 is a perspective view of a lens with ultra-small R-angle optical insection provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a lens with ultra-small R-angle optical insection provided by an embodiment of the present invention.

Fig. 3 is an enlarged view of a structure in fig. 2.

Fig. 4 is a schematic structural diagram of an exit surface according to an embodiment of the present invention.

Fig. 5 is a perspective view of a flash lampshade provided by the embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

1-lens 2 of ultra-small R angle optical insection-incident surface 3-emergent surface

4-exit plane 5-fresnel pattern surface 51-first light-gathering surface

52-second plane of condensation 53-bullnose 54-bullnose

6-insection 7-tooth space 9-flash lampshade

10-transparent substrate

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which is only for convenience in describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element so indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.

In an embodiment of the present invention, as shown in fig. 1 to 4, a lens 1 with an ultra-small R-angle optical insection includes an incident surface 2 and an exit surface 3, the incident surface 2 is a plane, the center of the exit surface 3 is provided with an exit plane 4, the exit surface 3 is located the outer peripheral ring of the exit plane 4 is provided with a fresnel textured surface 5, the fresnel textured surface 5 includes a plurality of parallel-arranged first light-gathering surfaces 51 and a plurality of parallel-arranged second light-gathering surfaces 52, and two ends of the second light-gathering surfaces 52 are respectively connected end to end with two adjacent first light-gathering surfaces 51 through an external circular angle 53 and an internal circular angle 54.

The lens with the ultra-small R angle optical insection is used: the light emitted by the LED chip is projected onto the emergent surface 3 after passing through the incident surface 2, and the emergent angle of the light is adjusted by refracting the light by the emergent plane 4 and the Fresnel pattern surface 5 on the emergent surface 3. When light is refracted, the annular fresnel surface 5 can better condense light, so that the illuminance is high, the irradiation effect of the light is improved, and the light is adjusted to be parallel light while the light is refracted by the first light condensing surface 51, the second light condensing surface 52, the external round corner 53 and the internal round corner 54, so that the light distribution is more uniform.

Specifically, one end of the second light condensing surface 52 of the super-small R-angle optical insection lens 1 is connected with the head end of the adjacent first light condensing surface 51 through the bullnose 53 to form a convex insection 6, and the other end of the second light condensing surface 52 is connected with the tail end of the adjacent first light condensing surface 51 through the bullnose 54 to form a concave gullet 7.

In addition, the insections 6 on the fresnel pattern surface 5 and the tooth grooves 7 are combined and can be regarded as a plurality of independent small lenses, light rays are adjusted into parallel light, the light rays are distributed more uniformly, brightness of all parts of the emitted light is guaranteed to be consistent, and the effects of large divergence angle and light ray homogenization are achieved.

Further, the depth of the tooth grooves 7 of the ultra-small R-angle optical-corrugated lens 1 increases from the outer peripheral edge of the exit plane 4 to the outer peripheral edge of the fresnel-corrugated surface 5.

Correspondingly, the tooth spaces 7 of the ultra-small R angle optical insection lens 1 are calculated according to the law of refraction, the tooth depth is increased from the center to two sides of the tooth spaces 7, and the processing error of the middle sawteeth of the ultra-small R angle optical insection lens 1 is effectively reduced.

Specifically, both ends of the exit plane 4 of the super small R-angle optical insection lens 1 are respectively connected with the adjacent first light condensing surface 51 and the second light condensing surface 52, and the height of the exit plane 4 is higher than the lowest end of the fillet 54, and the height of the exit plane 4 is lower than the highest end of the fillet 53.

Furthermore, the fresnel patterns 5 of the super-small R-angle optical insection lens 1 are in a plurality of concentric circles with gradually increasing radii in a top view, and the fresnel patterns 5 are in a connected zigzag shape in a cross-sectional angle.

Preferably, the radius of the bullnose 53 of the ultra-small R-angle optical-textured lens 1 is 0.03mm, and the radius of the bullnose 54 is 0.015 mm.

Specifically, the bullnose 53 and the fillet 54 on the fresnel pattern 5 are machined by a nanometer super-finishing lathe, and the smaller the bullnose 53 and the fillet 54 are, the better the optical effect is, thereby ensuring that the first light-gathering surface 51, the second light-gathering surface 52, the bullnose 53 and the fillet 54 maximally refract the light emitted by the LED chip projected by the incident surface 2, and improving the irradiation effect of the light.

In another embodiment of the present invention, as shown in fig. 5, a flash lampshade 9 comprises a transparent substrate 10 and the above-mentioned lens 1 with ultra-small R-angle optical insection, wherein the transparent substrate 10 and the lens 1 with ultra-small R-angle optical insection are integrally injection molded.

Specifically, the transparent substrate 10 and the lens 1 with the ultra-small R-angle optical insection are integrally formed by injection molding, and an existing assembled flash lampshade is replaced, so that the production efficiency of the flash lampshade can be improved. In addition, the flash lampshade 9 applies the lens 1 with the ultra-small R-angle optical insection, so that light can be better condensed when a flash lamp irradiates, the illumination intensity is high, meanwhile, light rays are adjusted into parallel light, the light rays are more uniformly distributed, the brightness of all parts of the emitted light is ensured to be consistent, and the effect of the flash lamp is improved.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a lens of super little R angle optics insection, includes incident surface and exit surface, its characterized in that: the light-focusing lens is characterized in that the incident surface is a plane, an emergent plane is arranged at the center of the emergent surface, a Fresnel pattern surface is arranged on the periphery of the emergent surface, which is positioned on the emergent plane, the Fresnel pattern surface comprises a plurality of first light-focusing surfaces which are arranged in parallel and a plurality of second light-focusing surfaces which are arranged in parallel, and two ends of each second light-focusing surface are respectively connected with the head and the tail of the two adjacent first light-focusing surfaces through an external fillet and an internal fillet.

2. The ultra-small R-angle optical-textured lens of claim 1, wherein: one end of the second light condensing surface is connected with the head end of the adjacent first light condensing surface through the external fillet to form a convex insection, and the other end of the second light condensing surface is connected with the tail end of the adjacent first light condensing surface through the internal fillet to form a concave tooth socket.

3. The ultra-small R-angle optical-textured lens of claim 2, wherein: the depth of the grooves increases from the outer peripheral edge of the exit plane to the outer peripheral edge of the fresnel-groove surface.

4. The ultra-small R-angle optical-textured lens of claim 1, wherein: two ends of the emergent plane are respectively connected with the first light-gathering surface and the second light-gathering surface which are adjacent, the height of the emergent plane is higher than the bottommost end of the inner fillet, and the height of the emergent plane is lower than the highest end of the outer fillet.

5. The ultra small R angle optical insecure lens of any one of claims 1-4, wherein: the Fresnel patterns are in a plurality of concentric circles with gradually increasing radiuses in a top view angle, and are in a connected sawtooth shape in a section angle.

6. The ultra small R angle optical insecure lens of any one of claims 1-4, wherein: the radius of the bullnose is 0.03mm, and the radius of the fillet is 0.015 mm.

7. A flashlight cover comprising a transparent substrate and the ultra-small R-angle optical insection lens of any one of claims 1-6, wherein: and the transparent substrate and the lens with the ultra-small R-angle optical insection are integrally formed by injection molding.