CN203249166U - Optical lens with photobiological safety and LED lighting device - Google Patents
Optical lens with photobiological safety and LED lighting device Download PDFInfo
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- CN203249166U CN203249166U CN 201320209915 CN201320209915U CN203249166U CN 203249166 U CN203249166 U CN 203249166U CN 201320209915 CN201320209915 CN 201320209915 CN 201320209915 U CN201320209915 U CN 201320209915U CN 203249166 U CN203249166 U CN 203249166U
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Abstract
The utility model belongs to the field of optical technologies and provides an optical lens with photobiological safety and an LED lighting device. The optical lens is characterized in that the side face of the optical lens is covered by a plurality of pyramids or prism frustums. Light entering a light inlet face is reflected by the side face and then transmitted out from a light outlet face. Due to the fact that the surface of each pyramid or prism frustum is formed by a plurality of face sheets inclined in different directions, the light entering the light inlet face can be reflected out from different angles; if a person watches from a certain angle, the person only can see partial light reflected from one face sheet or some face sheets of each pyramid or prism frustum, therefore, the light transmitted out from a light source is dispersed, then stimulation on the whole eyeball optic nerve is weakened because a plurality of discontinuous light receiving faces are formed at the retinas of the human eyes, the person can feel more comfortable in physiological visual sense, and the optical lens is excellent in anti-dazzle effect and also excellent in photobiological safety.
Description
Technical field
The utility model belongs to optical technical field, relates in particular to a kind of optical lens and LED lighting device that possesses the photo-biological security.
Background technology
LED becomes the most competitive environmental protection of 21 century, solid state light emitter with its high light efficiency, little, the energy-conservation technical advantage of volume.At present, the light efficiency of LED has reached 150lm/W, the minority product has reached 300lm/W, from energy-conservation angle, this is a kind of advantage, but considers from the angle of photo-biological safety, high light efficiency also has its disadvantageous one side, the LED of high light efficiency always produces glare phenomenon, gives dazzling uncomfortable sense, and this problem is also along with the raising of LED light efficiency becomes more and more serious.
At present, the area of LED wafer is about 0.5mm
2, approximately expand to 1mm after its surface applies layer of fluorescent powder
2, applying the purpose of fluorescent material normally in order to obtain white light, led chip sends blue light, and blue-light excited fluorescent material produces gold-tinted, finally is mixed into white light.This LED is with 1mm
2Area send the light of 150lm, its luminous exitance is 150lm/mm
2Usually by the transparent colloid encapsulation, encapsulating material is transparent silica gel to the LED wafer, and profile is circular-arc, the light distribution of this encapsulating structure is lambert's type, can not satisfy illumination use in to the requirement of light distribution, therefore, usually need to carry out secondary light-distribution, to satisfy actual needs.Yet led light source is anti-dazzle weak effect behind existing optical lens luminous intensity distribution.
The utility model content
The purpose of the utility model embodiment is to provide a kind of optical lens that possesses the photo-biological security, is intended to solve the existing poor problem of optical lens antiglare effect.
The utility model embodiment realizes like this, a kind of optical lens that possesses the photo-biological security, have an incidence surface that sends light in order to receive light source, an exiting surface and one light that receives is reflexed to the side of exiting surface, a plurality of pyramids or prismoid are covered with described side.
Another purpose of the utility model embodiment is to provide a kind of LED lighting device that adopts above-mentioned optical lens.
The utility model embodiment is covered with the side of optical lens by a plurality of pyramids or prismoid, the light that enters incidence surface after this offside reflection from the exiting surface outgoing, because the surface of pyramid or the prismoid dough sheet by a plurality of different incline directions consists of, the light that enters incidence surface can be reflected away from different perspectives, if human eye faces the light that lens send, can only watch from the light that reflects of each pyramid or some dough sheet of prismoid, because the light intensity that the existence on inclined plane, space causes reflexing to human eye from the front can weaken, and the light of seeing these reflections from the front presents the rotational symmetric distribution of a kind of emitting shape, if watching from certain angle in non-front, human eye can only see the light that partly reflects from each pyramid or a certain dough sheet of prismoid or some dough sheet, the light zone right and wrong of these distributions are successional, and then locate to form a plurality of discrete sensitive surfaces in the human eye retina, whole eyeball optic nerve stimulation is weakened, make physiological vision comfortable, antiglare effect is splendid, that is possesses splendid photo-biological security.
Description of drawings
Fig. 1 is the structural representation of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 2 is the side view of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 3 is the upward view of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 4 is the perspective view of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 5 is the stereogram of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 6 a is the top view that lens side cell geometry body consists of the triangular cone;
Fig. 6 b is the top view that lens side cell geometry body consists of rectangular pyramid;
Fig. 6 c is the top view that lens side cell geometry body consists of the hexagonal pyramid body;
Fig. 6 d is the top view that lens side cell geometry body consists of Three-frustum-shaped;
Fig. 6 e is the top view that lens side cell geometry body consists of the truncated rectangular pyramids body;
Fig. 6 f is the top view that lens side cell geometry body consists of six prismoids;
Fig. 7 is the index path of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 8 is the partial side view of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Fig. 9 is the local index path of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Figure 10 is the light path schematic diagram of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Figure 11 is the light path imaging schematic diagram of the optical lens that possesses the photo-biological security that provides of the utility model the first embodiment;
Figure 12 is Figure 11 A section enlarged drawing.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
The utility model embodiment is covered with the side of optical lens by a plurality of pyramids or prismoid, the light that enters incidence surface after this offside reflection from the exiting surface outgoing, because the surface of pyramid or the prismoid dough sheet by a plurality of different incline directions consists of, the light that enters incidence surface can be reflected away from different perspectives, if human eye faces the light that lens send, can only watch from the light that reflects of each pyramid or some dough sheet of prismoid, if watching from certain angle in non-front, human eye can only see the light that partly reflects from each pyramid or a certain dough sheet of prismoid or some dough sheet, thereby the light of divergent light source outgoing, and then locate to form a plurality of discrete sensitive surfaces in the human eye retina, whole eyeball optic nerve stimulation is weakened, make physiological vision comfortable, antiglare effect is splendid, that is possesses splendid photo-biological security.
The below is described in detail realization of the present utility model as light source with LED.
Shown in Fig. 1～12, the optical lens that possesses the photo-biological security that the utility model embodiment provides has an incidence surface 1 that sends light in order to receive led light source 10, an exiting surface 2 and one light that receives is reflexed to the side 3 of exiting surface, and a plurality of pyramids or prismoid are covered with described side 3.The side 3 that is covered with optical lens herein by a plurality of pyramids or prismoid, the light that enters incidence surface 1 is broken up in lens, after 3 reflections of this side from exiting surface 2 outgoing, because the surface of pyramid or the prismoid dough sheet by a plurality of different incline directions consists of, light in the lens can be reflected away from different perspectives, if human eye faces the light that lens send, can only watch from the light that reflects of each pyramid or some dough sheet of prismoid, if watching from certain angle in non-front, human eye can only see the light that partly reflects from each pyramid or a certain dough sheet of prismoid or some dough sheet, thereby the light of divergent light source outgoing, locate to form a plurality of discrete sensitive surfaces (shown in Fig. 9～12) through the light of each dough sheet reflection in the human eye retina like this, whole eyeball optic nerve stimulation is weakened, make physiological vision comfortable, antiglare effect is splendid, that is possesses splendid photo-biological security.
Usually, described optical lens is larger near the part of exiting surface 2, and less near the part of incidence surface 1, monnolithic case is bowl-shape.Wherein, described incidence surface 1 is by the outer convex globoidal 11 that is positioned at lens middle parts and be positioned at these outer convex globoidal 11 circumferential round table surface 12 and consist of, should will reflex to round table surface 12 from most of light of led light source 10 outgoing by outer convex globoidal 11, after round table surface 12 enters lens, again by the offside reflection of pyramid or prismoid to exiting surface 2, described outer convex globoidal 11 makes more light enter lens and by lens side 3 reflection through round table surface 12, thereby reduce led light source 10 from lens centre outgoing intensity, play the anti-dazzle effect in center.In addition, the centre of described exiting surface 2 is provided with a recess 21, and bottom surface 22 indentations of described recess can reflex to the light that is projected to recess bottom surface 22 pyramid or the prismoid of lens side 3 like this, from lens centre outgoing intensity, the center antiglare effect is better with further reduction led light source 10.
In addition, described pyramid or prismoid are covered with described side 3 with cell geometry bodily form formula, and namely the pyramid of a plurality of same types or prismoid are arranged in described side 3.Wherein, described pyramid particular type can be triangular cone 31, rectangular pyramid 32 or hexagonal pyramid body 33, described prismoid particular type can be Three-frustum-shaped 34, truncated rectangular pyramids body 35 or six prismoids 36, and these pyramids or prismoid are easy to moulding, shown in Fig. 6 a～6f.The utility model embodiment is covered with described side 3 by a plurality of rectangular pyramids 32, and wherein adjacent rectangular pyramid 32 shares wherein a base or a summit.For example, each pyramid is surrounded by four dough sheets on the lens side, consists of pyramid a such as dough sheet a1, a2, a3, a4, dough sheet b1, b2, b3, b4 consist of pyramid b, dough sheet c1, c2, c3, c4 consist of pyramid c ..., wherein pyramid a, b, c ... arrange from top to bottom.For ease of explanation, existing the dead ahead is watched if human eye is positioned at lens, then only has the light that partly reflects through dough sheet a1, a2 to enter human eye take a pyramid a as example, and this part accounts for 1/2 of dough sheet a1, a2 area, namely accounts for 1/4 of all dough sheet areas of pyramid a.In like manner, through pyramid b, c, d ... the emergent light area accounts for respectively 1/4 of its all dough sheet areas.The rest may be inferred, the spectrum that enters human eye from described optical lens front comes through its 1/4 lateralarea reflection, the final a plurality of discrete reverberation (such as the light through dough sheet a1, a2 reflection, through the light of dough sheet g1, g2 reflection) that form enter human eye behind exiting surface 2, thereby reach abblendbar.
Simultaneously, because a plurality of rectangular pyramids 32 are covered with described optical lens side 3, so increase lens offside reflection light-receiving area, thereby the luminous flux through each dough sheet reflection is reduced, so locate the light intensity decreasing that each sensitive surface receives in the human eye retina, make physiological vision more comfortable, antiglare effect is better.。In addition, because rectangular pyramid 32 all dough sheets are reflective surface, from the side, only have the light through the reflection of part minority dough sheet to enter human eye, thereby reach the side abblendbar.
Claims (7)
1. optical lens that possesses the photo-biological security, have an incidence surface (1) that sends light in order to receive light source, an exiting surface (2) and one light that receives is reflexed to the side (3) of exiting surface, it is characterized in that, a plurality of pyramids or prismoid are covered with described side (3).
2. optical lens as claimed in claim 1 is characterized in that, described pyramid or prismoid are covered with described side (3) with cell geometry bodily form formula; Wherein said pyramid is triangular cone (31), rectangular pyramid (32) or hexagonal pyramid body (33), and described prismoid is Three-frustum-shaped (34), truncated rectangular pyramids body (35) or six prismoids (36).
3. optical lens as claimed in claim 2 is characterized in that, a plurality of rectangular pyramids (32) are covered with described side (3).
4. optical lens as claimed in claim 3 is characterized in that, adjacent rectangular pyramid (32) shares wherein a base or a summit.
5. such as each described optical lens in the claim 1～4, it is characterized in that, described incidence surface (1) is made of outer convex globoidal (11) and round table surface (12).
6. such as each described optical lens in the claim 1～4, it is characterized in that, the centre of described exiting surface (2) is provided with a recess (21), bottom surface (22) indentation of described recess (21).
7. the LED lighting device of each described optical lens in an employing such as the claim 1～6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209915 CN203249166U (en) | 2013-04-23 | 2013-04-23 | Optical lens with photobiological safety and LED lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320209915 CN203249166U (en) | 2013-04-23 | 2013-04-23 | Optical lens with photobiological safety and LED lighting device |
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| Publication Number | Publication Date |
|---|---|
| CN203249166U true CN203249166U (en) | 2013-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320209915 Expired - Fee Related CN203249166U (en) | 2013-04-23 | 2013-04-23 | Optical lens with photobiological safety and LED lighting device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121544A (en) * | 2013-04-23 | 2014-10-29 | 深圳市金流明光电技术有限公司 | Optical lens with light biosecurity and LED lighting device |
| WO2015106670A1 (en) * | 2014-01-17 | 2015-07-23 | 武良举 | Lamp |
| CN106959133A (en) * | 2017-03-23 | 2017-07-18 | 贵州省机械电子产品质量监督检验院 | A kind of LED illumination product photo-biological safety detection system |
-
2013
- 2013-04-23 CN CN 201320209915 patent/CN203249166U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121544A (en) * | 2013-04-23 | 2014-10-29 | 深圳市金流明光电技术有限公司 | Optical lens with light biosecurity and LED lighting device |
| WO2015106670A1 (en) * | 2014-01-17 | 2015-07-23 | 武良举 | Lamp |
| CN106959133A (en) * | 2017-03-23 | 2017-07-18 | 贵州省机械电子产品质量监督检验院 | A kind of LED illumination product photo-biological safety detection system |
| CN106959133B (en) * | 2017-03-23 | 2020-05-12 | 贵州省机械电子产品质量监督检验院 | Light biological safety detection system for LED lighting product |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131023 Termination date: 20180423 |
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| CF01 | Termination of patent right due to non-payment of annual fee |