CN203240490U

CN203240490U - Telescopic lens

Info

Publication number: CN203240490U
Application number: CN 201320202634
Authority: CN
Inventors: 唐德龙; 罗宇哲
Original assignee: Dongguan Ledlink Optics Inc
Current assignee: Dongguan Ledlink Optics Inc
Priority date: 2013-04-22
Filing date: 2013-04-22
Publication date: 2013-10-16
Anticipated expiration: 2023-04-22

Abstract

The utility model discloses a telescopic lens. The telescopic lens is provided with a body and a cover body, wherein the body is of a cup-shaped structure with the upper portion wider and the lower portion narrower, a light exiting face is arranged at the top of the body, a light entering face is arranged at the bottom of the body, the center of the light exiting face is sunken to form an inserting groove, the center of the light entering face is sunken to form a containing space, and a light-emitting diode can be contained in the containing space. The cover body is of a disk structure, the surface of the bottom of the cover body is arranged corresponding to the light exiting face, the center of the cover body is sunken to form an embedding-insertion part, and therefore the lens body can be embedded in the embedding-insertion part to stretch the distance between the cover body and the body so that the illumination intensity and the illumination range of light projected by the light-emitting diode can be regulated. Thus, the illumination effect of the light projected by the light-emitting diode can be regulated elastically to be applicable to various lamps.

Description

Flexible lens

Technical field

The utility model relates to the technical field of optical lens, particularly about a kind of flexible lens, changes and adjusts lighting angle and the projection illumination of former light emitting diode with three optical principles of mat, and be applicable to the different demands of various light fixture.

Background technology

In recent years, light emitting diode (Light Emitting Diode, LED) is widely used in the various light fixture because of characteristics such as its low power consumption, high-effect and life-span are long.Yet the former lighting angle of LED is only approximately 120 ° and restriction illumination zone generally, and the light source that LED launched system concentrates on the center, causes center and the brightness difference in size at peripheral place very huge and uniform illuminating effect can't be provided.So, adopt LED as the various LED light fixture of light source will be because of the lighting angle that is subject to former led light source the characteristics such as little and distribution of light amplitude is narrower, form the illuminating effect that less illumination range and relatively poor light all spends and be difficult to meet user's demand.In view of this, LED light fixture polygamy is equipped with an optical lens, in order to the reflection of the secondary optics principle of optical lens or reflect the light that former led light source is launched, make and adjust and improve the better light shape layout of all kinds of applicabilities of generation behind projection illumination, lighting angle and the optical path distribution consistency degree of former led light source, so that the illumination condition of the best all to be provided under the service condition of various differences.

Again, be subjected to the tendency influence of device microminiaturization, or for meeting the market demands such as Gao Junguang, high illumination and high range of exposures, may be equiped with plurality of LEDs in the single LED light fixture, each LEDs all configures an optical lens again, related structure design and the outward appearance volume of optical lens of making is restricted, affects the secondary optics effect that optical lens can produce, and causes the LED light fixture that the illumination condition of the best can't be provided.To this, how further to utilize the refraction of three optics and the optical path of principle of reflection improving optical lens to adjust function, be the problem of the relevant practitioner's utmost point wish improvement in this area.

The utility model content

The purpose of the utility model is to provide a kind of flexible lens, and it utilizes the refraction of secondary and three optics and lighting angle that principle of reflection is adjusted former light emitting diode and projection illumination simultaneously, enhances adaptability to improve lighting quality.

For reaching above-mentioned purpose, the flexible lens of the utility model have a body, it is cup-shaped structure wide at the top and narrow at the bottom, and the top is provided with an exiting surface, and the bottom is provided with an incidence surface, and this incidence surface center is arranged with formation one accommodation space, be provided with an accommodating light emitting diode, and elasticity adjusts the lighting effect that this light emitting diode throws, and it is characterized in that: these flexible lens have a lid, and this exiting surface center of this body is arranged with and forms a slot; This lid is disc-shaped structure, its lower surface is to should the exiting surface setting, and the center is convexly equipped with and forms an inserting part, is provided with being embedded in this slot and distance between flexible this lid and this body, makes adjustment intensity of illumination and illumination range that this light emitting diode throwed.

Purpose according to the utility model, should have a body by flexible lens, it is cup-shaped structure wide at the top and narrow at the bottom, and the top is provided with an exiting surface, the bottom is provided with an incidence surface, and this incidence surface center is arranged with formation one accommodation space, be provided with an accommodating light emitting diode, and elasticity is adjusted the lighting effect that this light emitting diode throws, it is characterized in that: these flexible lens have an optical path and adjust means, be provided with covering on this exiting surface with this body winding, and see through shortening this optical path adjustment means and this bright dipping distance between the surface, the intensity of illumination that this light emitting diode is throwed strengthens; See through this optical path of elongation and adjust means and this bright dipping distance between the surface, the illumination range augmentation that this light emitting diode is throwed.So, the light that this light emitting diode is launched is through the refraction of the secondary optics of this body or reflection and after producing skew, three optical effect that formed by this lid will further change the optical path direction, make the lifting lighting quality.

Wherein, bring together towards this exiting surface direction depression with a convex arc curve this incidence surface center, and form this accommodation space of coniform space structure, and the cone flank of this accommodation space is concave arc shape, this slot is the flat column space structure again, and this inserting part is the flat column setting of correspondence.This exiting surface and this lid lower surface are the cellular surface texture of mutual correspondence, and this lid top surface is processed through cloudy surface, form optimum illumination with suitable adjustment optical path trend and distribute.

And these flexible lens more comprise an engaging body, and this engaging body is located at this body one side, is provided with mutually being fixed with respect to a LED substrate, makes to make things convenient for lamp assembled.

In sum, the mode that the utility model sees through flexible this lid adjust under the exiting surface of this body and this lid surface spacing from, adjust the degrees of offset that light that this light emitting diode launched produces with elasticity between secondary optics and three optics, make projection form the illuminating effect in applicable each field.

Description of drawings

Fig. 1 is the schematic top plan view of the utility model preferred embodiment;

Fig. 2 is the elevational schematic view of the utility model preferred embodiment;

Fig. 3 is the utility model preferred embodiment one body schematic diagram;

Fig. 4 is the utility model preferred embodiment one body cutaway view;

Fig. 5 is the utility model preferred embodiment one lid schematic diagram;

Fig. 6 is the utility model preferred embodiment one lid cutaway view;

Fig. 7 is the utility model preferred embodiment one optical track figure;

Fig. 8 is the utility model preferred embodiment one distribution curve flux figure;

Fig. 9 is the utility model preferred embodiment one irradiance pattern;

Figure 10 is the utility model preferred embodiment two optical track figure;

Figure 11 is the utility model preferred embodiment two distribution curve flux figure;

Figure 12 is the utility model preferred embodiment two irradiance patterns.

The specific embodiment

See also Fig. 1,2, it is respectively schematic top plan view and the elevational schematic view of the utility model preferred embodiment.As shown in the figure, but this flexible lens 1 elasticity is adjusted light source projects illumination and light source projects scope, the difference of lighting quality is required and be applicable in the various light fixture to meet each field, and it has a body 10 and an optical path is adjusted means.This body 10 is cup-shaped structure wide at the top and narrow at the bottom, and the top is provided with an exiting surface 100, and the bottom is provided with an incidence surface 101, and these exiting surface 100 centers are arranged with and form a slot 1000, and these incidence surface 101 centers are arranged with formation one accommodation space, are provided with an accommodating light emitting diode (not shown).These optical path adjustment means are provided with covering on this exiting surface 100 with 10 windings of this body, and see through shortening this optical path adjustment means and 100 distances of this exiting surface, and the intensity of illumination that this light emitting diode is throwed strengthens.Simultaneously, see through this optical path of elongation and adjust means and 100 distances of this exiting surface, the illumination range augmentation that this light emitting diode is throwed.

And, these optical path adjustment means are one of disc-shaped structure lid 11, its lower surface is to arranging by exiting surface 100, and the center is convexly equipped with and forms an inserting part 110, be provided with being embedded in this slot and this lid 11 of elastic telescopic and 10 distances of this body, make mat change the refraction of three optics and principle of reflection to the impact effect of this light emitting diode projection light and elasticity is adjusted intensity of illumination and illumination range.

See also Fig. 3～6, it is respectively the utility model preferred embodiment one body schematic diagram, body cutaway view, lid schematic diagram and lid cutaway view.As shown in the figure, this slot 1000 of this body 10 is the flat column space structure, therefore relatively, this inserting part 110 is to be the flat column setting, and this slot 1000 can be provided with at least one fixture (not shown) relatively with 110 of this inserting parts, so that this inserting part 110 is fastened in this slot 1000.

Improve the effect of former this light emitting diode optical path distribution with the secondary optics principle for promoting this body 10, bring together towards this exiting surface 100 directions depression with a convex arc curve these incidence surface 101 centers, and form this accommodation space of coniform space structure, and the cone flank of this accommodation space is concave arc shape, the light of being launched further evenly to disperse former this light emitting diode.

Moreover these lid 11 top surfaces can be processed through cloudy surface, and this exiting surface 100 and this lid 11 lower surface are the mutual cellular surface texture of correspondence, form the optimum illumination distribution with suitable adjustment optical path trend.Shown in Fig. 7,8 and 9, it is respectively the utility model preferred embodiment one optical track figure, distribution curve flux figure and irradiance pattern, engage this body 10 when this lid 11 of compression, when even its lower surface is fitted this exiting surface 100, this light emitting diode see through should flexible lens 1 projection light, will be the normalization intensity of illumination be about 1 and illumination range than the illuminating effect concentrated to the center.Otherwise, when this lid 11 of stretching and away from this body 10, even its lower surface with one apart from cover on this exiting surface 100 time, shown in Figure 10,11 and 12, it is respectively the utility model preferred embodiment two optical track figure, distribution curve flux figure and irradiance pattern, this light emitting diode is through the light of lens 1 projection that should stretch, and the normalization intensity of illumination still is about 1 illuminating effect to spreading all around will to be illumination range.Hence one can see that, and 11 distances of this body 10 and this lid are larger, and the lighting effect that this light emitting diode throwed is the illumination range of the wider model of tool, but relatively weaken average intensity of illumination.

Incidentally be, these flexible lens 1 more can comprise one the engaging body 12, this engaging body 12 is to be located at this body 10 1 sides, is provided with mutually being fixed with respect to a LED substrate (not shown), makes to make things convenient for lamp assembled.

Certainly, the above only is preferred embodiment of the present utility model, therefore all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1. flexible lens, has a body, it is cup-shaped structure wide at the top and narrow at the bottom, and the top is provided with an exiting surface, the bottom is provided with an incidence surface, and this incidence surface center is arranged with formation one accommodation space, is provided with an accommodating light emitting diode, and elasticity adjusts the lighting effect that this light emitting diode throws, and it is characterized in that:

Should have a lid by flexible lens, and this exiting surface center of this body is arranged with formation one slot; This lid is disc-shaped structure, its lower surface is to should the exiting surface setting, and the center is convexly equipped with and forms an inserting part, is provided with being embedded in this slot and distance between flexible this lid and this body, makes adjustment intensity of illumination and illumination range that this light emitting diode throwed.

2. flexible lens according to claim 1 is characterized in that: exiting surface and this lid lower surface are the mutual cellular surface texture of correspondence.

3. flexible lens according to claim 1, it is characterized in that: the lid top surface is processed through cloudy surface.

4. flexible lens according to claim 1 is characterized in that: bring together towards this exiting surface direction depression with a convex arc curve incidence surface center, and form this accommodation space of coniform space structure, and the cone flank of this accommodation space is concave arc shape.

5. flexible lens according to claim 1, it is characterized in that: slot is the flat column space structure, and this inserting part is the flat column setting of correspondence.

6. flexible lens according to claim 1 is characterized in that: comprise an engaging body, this engaging body is located at this body one side, is provided with mutually being fixed with respect to a LED substrate.