CN207742364U - A kind of flashlight lens - Google Patents

A kind of flashlight lens Download PDF

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Publication number
CN207742364U
CN207742364U CN201820005971.9U CN201820005971U CN207742364U CN 207742364 U CN207742364 U CN 207742364U CN 201820005971 U CN201820005971 U CN 201820005971U CN 207742364 U CN207742364 U CN 207742364U
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CN
China
Prior art keywords
lens
flashlight
sawtooth
incidence surface
light
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Active
Application number
CN201820005971.9U
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Chinese (zh)
Inventor
周桂克
侯宏伟
张文波
郑彬峰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Run Photoelectric Technology Co Ltd
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Dongguan Run Photoelectric Technology Co Ltd
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Priority to CN201820005971.9U priority Critical patent/CN207742364U/en
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Abstract

The utility model discloses a kind of flashlight lens, it includes lens body, the lens body includes the incidence surface for being set to flash light source and the light-emitting surface far from the flash light source, and the incidence surface is Fresnel Lenses face, and the light-emitting surface is plane.The middle position of its incidence surface is also Fresnel Lenses face, without containing smooth convex lens part, lines consistency is good, so that from light extraction towards in terms of incidence surface when without round clear area, light extraction uniform intensity, effect are good, so that the mobile terminal shooting validity using the flashlight lens is stronger, in addition, the flashlight lens aesthetics higher, more metal-like.

Description

A kind of flashlight lens
Technical field
The utility model belongs to flash light techniques field, relates in particular to a kind of flashlight lens.
Background technology
With the fast development of electronic information technology, it is daily that mobile terminal (such as mobile phone, tablet computer) has become user An indispensable part in life, for a user, the camera function of mobile terminal have become the one of selection mobile terminal A important indicator, therefore, mobile terminal manufacturer are also dedicated to make the camera function of mobile terminal more perfect, with million pictures Element above camera application is popularized, and requirement of the user to photographic quality and photographic effect is also gradually increased, in order to environment compared with It remains to obtain preferable shooting quality in the case of dark, the mobile terminals such as mobile phone, MP4, PDA product is all integrally disposed flash of light Lamp, while playing the role of auxiliary photo-taking, flash lamp can also be used as flashlight, be used as emergent shine when necessary Bright, this kind of digital product with flash lamp receives the popular welcome of user.
The luminous efficiency of LED is high, power consumption is small, service life is long, safety, is a kind of reliable light source of environmental protection, can apply In mobile terminal flash lamp field, mobile terminal flash lamp is generally made of several white LED light sources at present, by driving chip Driving, in order to obtain excellent light-out effect, the flash lamp usually external flashlight lens with it is usually covered at, which are arranged in pairs or groups, to be used, In mobile terminal camera module, flashlight lens are a significant components, and quality influences shooting effect quality very big.Mesh The mirror center portion point of preceding majority flashlight lens is a convex lens (as shown in Figure 1), and this structure causes from flash lamp light-emitting surface When (plane) is seen to incidence surface, it may appear that lofty round clear area, middle position light intensity are higher than surrounding light intensity, influence light efficiency Fruit, to affect the validity of shooting.
Utility model content
For this purpose, the mirror center portion the technical problem to be solved by the utility model is to conventional flash lamp lens is divided into convex lens Mirror, easily forms round clear area, and influence is taken pictures authenticity, and to propose a kind of light-out effect evenly, no clear area improves The flashlight lens of shooting effect.
In order to solve the above technical problems, the technical solution of the utility model is:
The utility model provides a kind of flashlight lens comprising lens body, the lens body include being set to sudden strain of a muscle The light-emitting surface of the incidence surface of light light source and the separate flash light source, the incidence surface are Fresnel Lenses face, institute It is plane to state light-emitting surface.
Preferably, the lens body has an accommodating cavity for housing the flash light source, the accommodating cavity Top is the incidence surface.
Preferably, the Fresnel Lenses face is made of a series of sawtooth concentric rings being sequentially arranged, the same sawtooth Two neighboring sawtooth spacing is 0.05-0.5mm in ring.
Preferably, a height of 0.001-0.5mm of sawtooth tooth.
Preferably, the fleam is not less than 28 degree.
Preferably, the tooth top radius of the sawtooth is not less than 0.02mm, the radius of flute of tooth is not less than 0.01mm.
Preferably, the sawtooth height of center saw-tooth ring is less than the sawtooth height of external saw-tooth ring.
Preferably, the lens body include the first lens section and be shaped at the top of first lens section the Two lens sections, the incidence surface are set to first lens section, and the light-emitting surface is set to second lens section.
The above-mentioned technical proposal of the utility model has the following advantages compared with prior art:
Flashlight lens described in the utility model comprising lens body, the lens body include being set to flash of light The light-emitting surface of the incidence surface of light source and the separate flash light source, the incidence surface is Fresnel Lenses face, described Light-emitting surface is plane.The middle position of its incidence surface is also Fresnel Lenses face, does not contain smooth convex lens part, lines one Cause property is good so that without round clear area when from light extraction towards in terms of incidence surface, light extraction uniform intensity, effect is good, so that answering It is stronger with the mobile terminal shooting validity of the flashlight lens, in addition, the flashlight lens aesthetics higher, more metal Texture.
Description of the drawings
In order to make the content of the utility model be more likely to be clearly understood, below according to the specific implementation of the utility model Example and in conjunction with attached drawing, the utility model is described in further detail, wherein
Fig. 1 is the schematic diagram of flashlight lens in the prior art;
Fig. 2 is the flashlight lens sectional view described in the utility model embodiment;
Fig. 3 is the flashlight lens top schematic diagram described in the utility model embodiment;
Fig. 4 is the flashlight lens schematic bottom view described in the utility model embodiment.
Reference numeral is expressed as in figure:The first lens sections of 1-;The second lens sections of 2-;3- incidence surfaces;4- light-emitting surfaces.
The utility model can be implemented with many different forms, should not be construed as limited to embodiment set forth herein, On the contrary, providing these embodiments so that the disclosure is thorough and complete, and the design of the utility model is fully conveyed to this Field technology personnel, the utility model will be defined by the claims.In the accompanying drawings, for clarity, each device can be exaggerated Size and relative size.Term " first ", " second " in the utility model specification and claims and attached drawing etc. are For distinguishing similar object, without being used to describe specific sequence or precedence.It should be appreciated that the data used in this way It can be interchanged in the appropriate case.In addition, term " comprising ", " having " and their any deformation, it is intended that covering is not Exclusive includes.
Specific implementation mode
Embodiment
The present embodiment provides a kind of flashlight lens, the flash lamp for protecting the mobile terminals such as mobile phone and improvement flash lamp Light-out effect, the flashlight lens are as in Figure 2-4 comprising lens body, the lens body include the first lens section 1 With the second lens section 2 for being shaped in 1 top of the first lens section, first lens section 1 is arranged close to flash light source, the Two lens sections 2 are arranged far from the flash light source.The lens body includes incidence surface 3 and light-emitting surface 4, the incidence surface 3 It is set to the first lens section 1, light-emitting surface 4 is set to the second lens section 2, specifically, as shown, the incidence surface 3 is first The bottom surface (close to the one side of flash light source) of lens section 1, the light-emitting surface 4 is the top surface of the second lens section 2.The incidence surface 3 be Fresnel Lenses face, and the light-emitting surface is plane.
First lens section 1 of the lens body is described accommodating also with an accommodating cavity for housing flash light source Chamber is enclosed by the side wall of the first lens section 1, as shown, the top of the accommodating cavity is the incidence surface 3.The phenanthrene alunite You are made of lens face a series of sawtooth concentric rings being sequentially arranged from inside to outside, in each sawtooth concentric ring, two neighboring saw The spacing of tooth is 0.05-0.5mm, is preferably 0.15mm in the present embodiment, and the bottom angle of sawtooth is not less than 28 degree, the present embodiment In be 30 degree, the top and bottom of the sawtooth are smooth circular arc, and addendum circle arc radius is not less than 0.02mm, and bottom of the tooth circular arc is partly Diameter is not less than 0.01mm.The a height of 0.001-0.5mm of sawtooth tooth, as shown in Fig. 2, the sawtooth of centrally located sawtooth annulus is high Degree less than its external sawtooth annulus sawtooth height, in the present embodiment, a height of 0.1mm of tooth of center sawtooth annulus, peripheral sawtooth The a height of 0.3mm of tooth of annulus.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or Among the protection domain that variation is created still in the utility model.

Claims (8)

1. a kind of flashlight lens, which is characterized in that including lens body, the lens body includes being set to flash light source The light-emitting surface of the incidence surface of side and the separate flash light source, the incidence surface are Fresnel Lenses face, the light-emitting surface For plane.
2. flashlight lens according to claim 1, which is characterized in that the lens body is with one for accommodating described The accommodating cavity of flash light source, the accommodating cavity top is the incidence surface.
3. flashlight lens according to claim 2, which is characterized in that the Fresnel Lenses face is sequentially set by a series of The sawtooth concentric ring set forms, and two neighboring sawtooth spacing is 0.05-0.5mm in the same saw-tooth ring.
4. flashlight lens according to claim 3, which is characterized in that a height of 0.001-0.5mm of sawtooth tooth.
5. flashlight lens according to claim 4, which is characterized in that the fleam is not less than 28 degree.
6. flashlight lens according to claim 5, which is characterized in that the tooth top radius of the sawtooth is not less than 0.02mm, the radius of flute of tooth are not less than 0.01mm.
7. flashlight lens according to claim 6, which is characterized in that the sawtooth height of center saw-tooth ring is sawed less than external The sawtooth height of ring gear.
8. flashlight lens according to claim 7, which is characterized in that the lens body includes the first lens section and one Body formed the second lens section at the top of first lens section, the incidence surface are set to first lens section, it is described go out Smooth surface is set to second lens section.
CN201820005971.9U 2018-01-03 2018-01-03 A kind of flashlight lens Active CN207742364U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820005971.9U CN207742364U (en) 2018-01-03 2018-01-03 A kind of flashlight lens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820005971.9U CN207742364U (en) 2018-01-03 2018-01-03 A kind of flashlight lens

Publications (1)

Publication Number Publication Date
CN207742364U true CN207742364U (en) 2018-08-17

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111596503A (en) * 2020-06-01 2020-08-28 东莞景丰塑胶制品有限公司 Mobile phone flashlight lampshade based on three-dimensional fringe astigmatism and design method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111596503A (en) * 2020-06-01 2020-08-28 东莞景丰塑胶制品有限公司 Mobile phone flashlight lampshade based on three-dimensional fringe astigmatism and design method thereof

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