TWM347533U - Plano-Fresnel LED lens for angular distribution patterns and LED assembly thereof - Google Patents

Description

M347533 (radius on optical axis) dO LED die thickness on optical axis dl center axis on the surface of the LED chip to the optical lens light source side of the optical surface (the thickness of die surface to R1 on optical axis) D2 lens thickness on optical axis; h first zone radius rn last zone radius rt ring pitch _ hd zone height. Eight, new description: [New technology field] This creation is related to a planar light-emitting diode optical lens and its light-emitting diode assembly, especially one that can produce light intensity ^peak intensity) The light-type (Elliptie angular) Fresnel optical lens, which is used to produce a light-emitting diode assembly by means of an LED illumination source, can be applied to LED lighting, mobile phones or camera flashes. [Prior Art] A light emitting diode (LED) has the advantages of low voltage, low power consumption, and long life, and has been widely used in display devices (indicate^, lighting devices (iUuminat〇r), etc. (4) It has the characteristics of light color, simpleness, miniaturization and flat packaging, which has been used in the flash of mobile phone camera. (4) Because the light emitted by the LED chip has a point light source, the brightness is unevenly hidden, and there is a researcher on the light_aggregation. For the purpose of reducing the wafer and improving the luminous efficiency, the use of optical mirror 3 M347533 is also an important technology development direction. In the design of LED optical lens, it can be divided into primary optical lens and secondary Secondary optical lens; a primary optical lens is a lens directly packaged on an LED wafer, generally concentrated in concentrated light; a secondary optical lens is used in a single or several LED arrays (Array) The scattered light beam is dominant. In the conventional optical lens design, for example, the ES2157829 uses a symmetric aspherical lens; the patent JP30 32069, JP2002-111068, JP2005-203499, US special US2006/187653, Chinese patent CN101013193, etc. use spherical lens; JP2002-221658 is a spherical lens for Bulk type LED, etc. For high-order applications, one optical lens except In order to gather light, it is possible to generate a specific distribution pattern at a uniform peak intensity, such as a large angle, a small angle, a circle, an ellipse, etc., in combination with an LED array. In order to produce the best optical effect, the use of the primary optical lens is as shown in FIG. 1B, and the LED chip 21 is covered with a lens 23'. When the LED chip 21 emits light, it is collected via the lens 23, and emits a predetermined light beam. Or on a single optical lens, plus a layer of secondary optical lens for uniformity. The primary optical lens has a variety of different designs. One of the optical lenses uses a Fresnel-type optical surface. In the prior art, for example, the German patent WO/2003/083943; the patent JP2005_049367, etc.; the US patent US 6,726,859, the publication number US2007/0275344, US 2008/0158854; European Patent EP1091167; and Taiwan Patent TW200711186, etc.; however, the above-mentioned prior art is mainly a Fresnel lens covering a plurality of LEDs or secondary optical lenses for use as a projector ( Secondarylens). But with 4 M347533

LED lighting performance is developing rapidly, and the use of single LEDs is becoming increasingly important. A light source composed of an LED array or a plurality of LEDs can be made to pass through each other and the light is compensated by the lens to become uniform light; however, in a single T^ design, the LED group of the LED group is farther than the LE: Uniformization of the concentrating rate and light intensity of the primary rimarylens must be considered; for example, JP 2 〇〇 5_257953, US patent US 2006/0027828 is placed on a single-sided or two-sided Fresnel lens. Above the illuminant, to produce uniform light, as shown in Fig. 113, such as the Taiwan patent yeah _85 using the parabolic bowl side and phenanthrene lens to reduce the beam divergence and form a uniform light pattern; and such as Korean Patent 1020070096368 With the patent of Taiwan 1261654, the Fresnel lens is made into a led optical lens, but its light type is mainly circular, and it is difficult to expand the single LED component of the elliptical illumination type with practical application. "" Use. With the advancement of technology, electronic products are constantly moving towards light, short, and versatile, and electronic products such as digital cameras (Digital calls for Stllll Camera), computer cameras (PCcamera), network cameras * camera), actions In addition to the lens (mobile phone) and other devices, even the personal digital assistant (PDA) and other devices have the need for lens; therefore, LED flashlights for lighting or lighting for such products are often single or multiple LED components form an array; and for the convenience of carrying and ergonomic requirements 'LED flashlights or lighting LED lamps not only need to meet the luminous flux' to match different light-type LED components, but also need to have a smaller volume and Low cost. The Fresnel lens is provided with a set of irregular Fresnel zone plates on the surface of the lens, the ring spacing is from the inside to the outside or 5 M347533 is large (the ring spacing _ changes), because the Philippine lens has pure light guide The ability to collect light, the light, thin, plasticized and low-cost features of the mask, (4) the day of the photo (10) secret; but for the use of multi-point illumination, the illuminance and light intensity should be considered. ί Technique: The upper part often uses a certain ratio of zone tch and zone height or gradient ring spacing and ring depth.

f, the two, the lighting system is a gradual ring spacing method, which can meet the practical requirements of uniform illumination and light intensity; but for a single (four)-secondary optics, it must be combined with the optical characteristics of the optical lens. I Philippine _ _ has (4) the appearance of the surface, and the manufacturing cost is better than two 'but has good domain efficiency and homogenization effect, especially single use is more noticed. In order to make the light generated by a single LED, it is urgent to use this, and use the Philippine lens m light: the lens to produce a specific elliptical light type and form the LEDf piece, in the composition of the creation, the table The light emitted by the self-illuminating sheet can be concentrated and produce a uniform peak intensity and an elliptical light pattern. [New content] The main purpose of this creation is to provide a flat-panel luminescent LED lens and a light-emitting triode assembly thereof. The LED component is made of -LED wafer (LEDdi emits light, - Frege The optical lens is formed by collecting light and forming an elliptical light pattern with uniform light intensity, and a sealing layer (4) 1 (4) for filling between the Philippine optical lens and the LED wafer, wherein the Philippine optical lens can be a flat concave (9) · c〇_e) A lens formed of a tapered or non-tapered optical material having a concave surface that is a light source side optical surface of the light source 6 M347533 and which may be a spherical or aspherical surface, the plane of which is an image side optical surface toward the image side And having a Fresnel-type optical surface, and the concentrated surface of the Fresnel optical surface may be an aspherical surface or a spherical surface, and the toroidal surface is a draft with a vertical shape and may have an equal ring depth (equai z〇) Ne height) or equal zone pitch, and can satisfy the following conditions: (1) (2) (3) 0.7 <^<2.2 rn 0.1 Wl)>1.25 J s \\ π ) \ π ) where: Λ tan~ Tan' —^_ [dO + dl^cn^Lx,D , ^dO + dl + Dl^Ly j (4)(3)(6)

Where 'fs is the length of the effective focal length of the optical lens, rn is the radius of the Last Zone of the Fresnel optical surface R2, d2 is the thickness of the central axis optical lens, and Nd2 is the refractive index of the optical lens , 2 9 is the angle of the highest light intensity (intensity) in the X direction through the optical lens - half (/1/2) (degree, deg ·), 2 is the highest light intensity in the Y direction through the optical lens Half (/1/2) angle (degree, deg·), 2Lx is the length of the LED chip in the X direction, 2Ly is the length of the LED wafer in the Y direction, and fg is the relative focal length of the optical lens (relative focal length) The length, & is the radius of the light side of the optical surface 7 M347533 radius, rf is the radius of curvature of the image side of the Fresnel optical surface (radius of ftesnel convex surface), d〇 is the thickness of the LED wafer, the mountain is The thickness of the sealant layer of the central axis, D is the radius of the optical lens on the image side of the optical surface. Further, the radius of curvature of the condensed surface of the Philippine Lille optical surface can be adjusted according to different light angles and condensing characteristics. Set to spherical or aspheric

In order to simplify the manufacture, the Fresnel optical lens can be replaced with a lens made of an optical material of a plane = p, no). The image side of the image side is optical: the Philippine optical surface, and can be satisfied. (1) ~ (3) conditions. In order to increase the efficiency of the LED component, the Fresnel optical lens can be replaced with an optical material made of an optical material, and the image side optical surface of the image side is Philippine, and the Nine, nine-faced, and satisfyable (1) ~ (3) conditions. This creation is another _μα福々, the purpose of 'easy to use' optical lens can be made of optical glass or optical plastic. The present invention is characterized in that the present invention aims to provide a light-emitting diode assembly, the lens thereof and the flat-panel or double-planet-emitting light-emitting diode optical body having an elliptical shape-polar body wafer. The requirements of the LED assembly are full, and the luminous flux ratio η is greater than 85 〇 / 〇 (^ to 850 〆 0) ~ two enough conditions: Ε '1/2 SO·? Friends of which (7) (8) 8 M347533 , rn is the radius of the last ring of the Fresnel optical surface R2, and 2 is the angle of the highest light intensity (intensity) at half (/1/2) in the X direction through the optical lens. Deg.), 2 &amp; is the angle (degree deg·) at which the light is emitted through the optical lens at half the maximum light intensity (/ι/2) in the γ direction, and rn is the last ring of the Fresnel optical surface R2 (Lastz〇) Ne) Radius, α is the luminous flux of the LED chip, β is the luminous flux of the image relative to infinity (100 times fs) without considering the attenuation factor, η is the luminous flux ratio; 7 = ,, (1 is 1^0 The illumination emitted by the wafer, Ew is the illuminance at half the maximum light intensity emitted by the Fresnel optical lens. The planar Fresnel light-emitting diode optical lens of the present invention and the light-emitting diode assembly thereof can have an elliptical light type and meet the requirement of a luminous flux ratio of more than 85%, and the optical lens has a thin thickness characteristic. It can be used for single LED or array LED, and can be used for lighting or mobile phone or camera flash. [Embodiment] In order to make the creation more clear and detailed, the preferred embodiment is illustrated and the following structure is used to construct the structure of the creation. And the technical features are as follows: Referring to FIG. 6, which is a schematic diagram of the planar Fresnel light-emitting diode optical lens and the light-emitting diode assembly 10 thereof, which are along the central axis Z. The arrangement from the light source to the image side is sequentially: a led wafer 11, an adhesive layer 12 and an optical lens 13. After the light is emitted from the LED wafer 11, after passing through the sealing layer 12, the light is collected by the optical lens 13 and The light beam forming an elliptical light pattern symmetrical to the central axis z is irradiated to the image side, and the optical lens 13 is a lens made of an optical material, and the concave surface 9 M347533 is a light source side optical surface R1 toward the light source. And the optical surface R1 may be an aspherical surface or a spherical surface. The opposite surface is the Fresnel optical surface R2 on the image side, which is a Philippine optical surface having a vertical draft with a vertical shape; the optical surface of the optical lens 13 R2, the optical lens thickness d2 and the effective focal length length satisfy the conditions of the formulas (1) and (2), and the angle of the light pattern formed by the light intensity formed by the optical lens 13 is 2 ψ (Χ direction 2 9 and Y direction 2) The condition of the formula (3) is satisfied. The sealing layer 12 does not limit the material used, and the optical component 13 is made of optical resin (resin) or silicon gel, and the optical lens 13 can be optical. Made of glass or optical plastic material. As shown in Figure 2, a pair of flat φΐ^ο-ρ^ο) Philippine LED optical lenses are shown in a schematic diagram of an LED component, which is arranged along the central axis Z from light to the image side. An LED chip 11, an adhesive layer 12, and a double flat Philippine optical lens 13, wherein the optical lens 13 is on the light source side of the light surface R1 'which is a plane (R1 = 〇〇), and the other The plane (opposing surface) is a Fresnel optical surface R2 having a vertical ring tooth on the image side. The optical surface of the optical lens 13 and the optical lens thickness d2 and the effective focal length satisfy the conditions of the formulas (1) and (2), and the light intensity formed by the optical lens 13 forms an angle of 2 0 (χ direction). 2 9 and Υ direction 2 &) satisfy the condition of formula (3). As shown in FIG. 3, another type of the present invention is a schematic diagram of using a Fresnel optical lens in an LED assembly 2, which is arranged along the central axis z from the light source to the image side in sequence: The LED chip 21, the adhesive layer 22 and a double flat Fresnel optical lens 23, wherein the Fresnel optical lens 23 is an optical lens having a taper v, as shown in FIG. After the light is emitted from the led crystal M347533 sheet 21, after passing through the sealant layer 22, the light is collected by the optical lens 23 and formed to illuminate the image side of the light beam symmetrical with respect to the central axis Z and having an illuminating angle as an elliptical light type; The Fresnel optical lens 23 of the taper v reduces the light scattered by the side of the optical lens 23 and improves the efficiency. The optical surface R2 of the optical lens 23, the optical lens thickness d2, and the effective focal length length satisfy the conditions of the formulas (1) and (2), and the light intensity formed by the optical lens 23 forms an angle of 2 0 (X direction). 2 9 and Y direction 2 &) satisfy the condition of formula (3). • For the optical lens 13 or the optical lens 23, the image side optical surface R2 is a Fresnel optical surface. The image side optical surface R2 used in the present invention is a Fresnel optical surface having a draft with a vertical shape as shown in FIGS. 4 and 5, wherein the Fresnel optical surface (R2) on the image side is composed of A concentrated light surface (RF) transfer is formed, and a Fresnel optical surface of an equal zone pitch can be respectively formed according to different transfer modes, as shown in FIG. 4 or an equal zone depth (equalzoneheight). The Neel optical surface is as shown in FIG. 4; referring to FIG. 4, the image side optical surface R2 is a Fresnel optical surface of an equal ring spacing, that is, a ring pitch rt is a fixed value. It is equal to the zonepitch rt but the unequal difference (the center axis Z is the highest point) on the concentrating surface (RF) of the condensed surface curvature radius RF, that is, the unequal ring depth (zone height) Hd, the condensed surface (Rf) is transferred into a ring-shaped spectacles optical surface (image side optical surface R2) of the equally spaced ring, that is, the ring depth of the central axis Z outwards (zoneheight) hd is as shown in the figure 4; each ring of the ring-shaped Fresnel optical surface (image side optical surface R2) is composed of a slope (s The lope is composed of a vertical draft, and the first ring half 11 M347533 has a diameter h and the last ring has a radius rn. When light is incident on the Fresnel optical surface (R2), the incident light is refracted by the slope of each ring, and the light effect similar to a parabolic surface (or concentrated surface) is shown in Fig. 9. Referring again to FIG. 5, the image side optical surface R2 is a Fresnel optical surface of an equia zone height, that is, a ring depth hd is a fixed value, which is a concentrated surface of the radius of curvature of the condensed surface (RF). RF) is equal to the drop (the center axis Z point is the highest point), that is, the equal ring depth (zoneheight) hd, but the unequal ring spacing (zonepitch) rt, the 聚 collecting surface Rf is transferred to the equal ring depth (equal zone height) ring-shaped fluorescing optical surface (image side optical surface R2) annular Fresnel optical surface, that is, from the central axis Z outward, its ring pitch rt is smaller as shown in Figure 5. Show that its first ring radius is r〗. Similarly, when light is incident on the Fresnel optical plane, the incident light is refracted by the inclined plane between the rings, and the light effect similar to a parabolic surface (or concentrated curved surface) is shown in FIG. Referring again to 囷9, Fig. 1〇 and Fig. 11, the rays of the Α group (Α1, Α2 and A3) are refracted via the Fresnel optical surface, and the angle of incidence is different due to the different incident angles of Α1, Α2 or A3. The position of the angle on the target is different as shown in Fig. 10. For the radial position of the central axis after exiting, the group of rays will show a light group with strong light intensity at the center; for the same reason, the light of group B (B1, B2 and B3) After refracting through the Fresnel optical surface, the light with stronger light intensity at the center will also be present; the light type with the intensity of the light as shown in Fig. 11 after combination of the A group and the B group, to avoid or Reducing the intensity of the central area is too strong. The light in the edge area is weak, and even a dark circle appears. The optical surface ri of the photon&quot; sheet 13 or the optical surface 12 of the optical lens 23 M347533 R1, if composed of an aspherical optical surface, the aspherical surface formula is (9) Ζ = 舢 W + 8 + is, (9) where c is the curvature, h is the height of the lens, κ is the aspheric coefficient of the cone coefficient (Conic Constant), A4, A6, A8, A10, respectively, four, six, eight, tenth order (Nth Order Aspherical Coefficient ). _ The radius of curvature of the condensed surface of the Fresnel optical surface is also defined by equation (9). For the conic coefficient of the radius of curvature rf of the parabolic surface, the conic coefficient κ = 0 for the radius of curvature of the convex surface of the spherical surface. Please refer to FIG. 8 , which is a schematic diagram of the optical path of the LED optical lens in the LED assembly. In the figure, the LED chip 11 ( 21 ) emits light and is concentrated and refracted by the optical lens 13 ( 23 ) at an angle of 20 (X direction 2 9 And γ direction 2咚) form the required elliptical light type and ^/heart 85% requirement, where 'α is the luminous flux of the LED chip, and β is the luminous flux of the image side relative to the infinity (100 times fs) light. And ignore the effects of air refraction and scattering, and meet the conditions of equation (7). With the above structure, the present invention utilizes a flat or double flat Fresnel light-emitting diode optical lens and an LED chip, so that the LED assembly 10 can emit a predetermined uniform light intensity of an elliptical light type, which can be used for a single use or Use an array of different light types. The preferred embodiment disclosed below is described with respect to the main constituent elements of the present invention. For the application and comparison of the embodiments, a wafer having a size of 1.85 x 0.77 mm is used for the LED chip 11. 13 M347533 A wafer whose wavelength is the highest intensity (1st peak wave-length) wavelength of 450 nm and the second highest peak wavelength-length of 550 nm, the emission angle in the X direction is %3. , Y direction of emission angle = 35.2. , α=78·5 lumens (lm), illuminance Ε (Η23·97 lux (Lux) blue light; optical lens 13 (or optical lens 24) using diameter 5mm (D=2.5mm) for explanation; Philippine optical The Fresnel optical surface having a ring pitch or an equal ring depth of a vertical ring tooth is selected; the sealant layer 12 is filled with a transparent optical silicone having a refractive index Ndl of 1.491. However, it generally has an optical lens and its constituents. In terms of LED components, in addition to the optical lens and its LED component disclosed in the present invention, other structures are generally notified technologies, that is, the size, material used, and LED of each component of the optical lens and its LED component. The wavelength and emission angle, the Fresnel optical surface pattern, the ring pitch and the loop depth, etc., are subject to many changes, modifications, and even equivalent changes. The following are used in the first to seventh embodiments to have a taper-free and equi-ring. Light-emitting diode assembly composed of a deep planar Fresnel optical lens, and eighth to ninth embodiments using a light-emitting diode assembly composed of a flat Fresnel optical lens with a taper and an equal ring depth ten To the eleventh embodiment, a light-emitting diode assembly using a flat Fresnel optical lens having no taper and equal pitch, and the twelfth to thirteenth embodiments using a flat concave surface having no taper and equal ring depth A light-emitting diode assembly composed of a Fresnel optical lens. <First Embodiment> Referring to FIG. 6 and FIG. 12, respectively, the light-emitting two formed by the use of the plane Philippine optical lens is created. A schematic diagram of a polar body assembly and a polar coordinate relationship between the light intensity distribution and the illumination angle of the first embodiment.

In the following list (1), the radius of curvature of the LED wafer 11, the sealant layer 12, the light source side optical surface R1 and the image side optical surface R2 of the optical lens from the light source side to the image side along the central axis Z 14 M347533 are respectively listed. Niel center axis condensing surface curvature half-control RF (mm), spacing 〇n-axissurface spacing), optical lens 13 taper υ, each refractive index (Nd) and so on. In this embodiment, a Fresnel optical lens made of a flat glass material having no taper and equal ring depth is used, and the R1 optical surface of Fig. 6 is a flat surface. Table (1) fs= 2.024 υ=0 Surface No. R or RF di SO OO 0.10 SI oo 0.52 1.410 S2* 氺1.000 2.00 1.582 In Table (1), the optical surface (Surf.No·) is marked with * Aspherical Fresnel optical surface. The following list (2) is the coefficient of the aspheric surface of the Fresnel optical surface radius Rp in the formula (9), the radius of the first Philippine ring radius r! from the center, the last phenanthrene &gt; Lille% radius Rn, Philippine &gt; Lerne height hd and No. of zone: Table (2)

Asoherical Surface K a2 a4 A6 -1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 Fennel Siirfacermin^ hd ri No. of Zone X wOXiVl U VI·! AWV J 0.1 0.447 2.490 31 In this embodiment, optics The lens 13 is made of a glass material having a refractive index Nd2 of 1.582 and an Abbe number vd2 of 61.7. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After the optical lens 13 is collected, it is "in the X direction 68". The γ direction is 3〇. The elliptical angle of illumination, at infinity (in terms of 100 times fs), β = 69.201 lumens, 15 M347533 (ignoring the effects of refraction and scattering of air); equations (l), (2), (3), 7) and (8) are: η = 0.8815 /1/2 = 33.5 Φχ = 32.5 Φν = 15.2 0.8130

Rn (^2-1)^= 0.5751 J s

0.2394 0, 4489 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 12 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (1), Table (2) and FIG. 12, it can be proved that the schematic diagram of the light-emitting diode assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and a predetermined elliptical light type. The intensity of light at all angles is uniform, which enhances the applicability of the creation. &lt;Second Embodiment&gt; Referring to FIG. 6 and FIG. 13, which are respectively a schematic diagram of a light-emitting diode assembly using the planar Fresnel optical lens and the light intensity distribution and photograph of the present embodiment. The polar coordinate diagram of the corner. M347533 The following table (3) lists the radius of curvature R of the LED wafer 11, the sealant layer 12, the light source side optical surface R1 and the image side optical surface R2 of the optical lens 13 from the light source side to the image side along the central axis z, respectively. Fresnel center axis condensing surface curvature radius RF, spacing di, taper υ of optical lens 13, refractive index (Nd) and so on. In this embodiment, a Fresnel optical lens made of a flat glass material having no taper and equal ring depth is used, and the R1 optical surface of Fig. 6 is a flat surface. Table (3) fs= 2.530 υ= 0 Surface No. R or RF di Ndi SO OO 0.10 SI oo 0.52 1.410 S2* 1.250 4.96 1.582 * Aspherical Zone Fesnel In Table (3), the optical surface (Surf·No·) has The * marked * is the aspherical Fresnel optical surface. The following list (4) is the coefficient of the aspheric surface of the Fresnel optical surface radius RP in the equation (9), the radius of the first Fresnel ring along the center 1^, the radius of the last Fresnel ring rn, Philippine Neel ring depth hd and Fresnel ring • Quantity: Table (4)

Aspherical Surface K 八2 a4 -8.5000E-01 0.0000E+00 2.4000E-05 5.7000E-08 Fesnel Surface(mm) hd h Γη No. of Zone 0.1 0.499 2.480 30 In this embodiment, the optical lens 13 is refracted The rate is Nd2 is 1.582, and the Abbe number vd2 is 61.7 glass material. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After being collected by this optical lens 13, it is 68 in the X direction. , Y-direction 33 ° ellipse 17 M347533 shape angle, at infinity (in 100 times fs) β = 70 · 245 lumens (ignoring the effects of air refraction and scattering); formula (1), (2 ), (3), (7), and (8) are: 7 = 0.8948 hn: 32.5 Φχ- 33.7 16.8 1.0203 rn (Ndl-l)^= 1.1410

0.3915 0.1319

Ed can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 13 is a diagram showing the relationship between the light intensity distribution of the LED assembly and the polar coordinates of the illumination angle of the present embodiment. From the above Table (3), Table (4) and Figure 13, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and a predetermined elliptical light type. The intensity of light at all angles is uniform, which enhances the applicability of the creation. &lt;Third Embodiment&gt; Referring to FIG. 6 and FIG. 14, which are respectively a schematic diagram of a light-emitting diode assembly using a planar Fresnel optical lens and a light intensity distribution of the present example M347533 The polar coordinate diagram of the photo. In the following table (5), the radius of curvature of the light source side optical surface R1 and the image side optical surface R2 of the LED chip 11, the sealant layer 12, the optical lens 13 from the light source side to the image side are respectively listed or Fresnel center axis condensing surface curvature radius RF, spacing di, taper υ of optical lens 13, refractive index (Nd) and so on. In this embodiment, a Fresnel optical lens made of a flat glass material having no taper and equal ring depth is used, and the R1 optical surface of Fig. 6 is a flat surface.吁表(五) fs= 2.530 υ= 0 Surface No. RorRF di Ndi SO OO 0.10 SI oo 0.52 1.410 S2* L250 2.00 1.582 * Aspherical Zone Fesnel In Table (5), the optical surface (Surf·No·) is marked *The person is an aspherical Philippine optical surface. The following list (6) is the radius of the Philippine optical surface radius Rp. The spherical surface is the coefficient of the formula (9), the radius of the first Philippine ring 〇 along the center, the radius of the last Fresnel ring rn, Frey Ring depth hd and Fresnel ring: six denier t table

Aspherical Surface K 八 2 A4 A6 -1.0000 Ε+00 O.OOOOE+OO O.OOOOE+OO O.OOOOE+OO Fesnel Surface(mm) ri rn No. of Zone 0.06 0.387 2.510 42 In this embodiment, the optical lens 13 It is made of a glass material having a refractive index Nd2 of 1.582 and an Abbe number of vd2 of 61.7. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After the optical lens 13 is gathered by M347533, the elliptical angle of X in the X direction and 36° in the Y direction is β=69·816 lumens at infinity (in terms of 100 times fs) (ignoring the refraction of air and Scattering and other effects); Equations (1), (2), (3), (7), and (8) are: η = 0.8893

/1/2 = 30.0 Nine=32.1 Φγ = 18.1 1.0081 (^2-1)^= 0.4601 J s [β- 1 ^ J = 0.3406 0.2108

Ed can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 14 is a diagram showing the relationship between the light intensity distribution and the polar angle of the LED assembly of the present embodiment. From the above Table (5), Table (6) and Figure 14, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and a predetermined elliptical light type. The intensity of light at all angles is uniform, which enhances the applicability of the creation. &lt;Fourth Embodiment&gt; Please refer to FIG. 6 and FIG. 15 , which are respectively a schematic diagram of the use of the plane M347533 of the present invention and a light intensity distribution of the example of the light-emitting diode assembly constructed by the Fresnel optical lens. The polar coordinate diagram of the photo. In the following list (7), the radius of curvature R of the light source side surface Z R1 and the image side optical surface R2 of the LED chip 11 from the light source side to the image side edge +, the sealant layer 12, and the optical lens 13 are respectively listed. Nyer Center &amp; ^

The radius of curvature of the surface RF, the pitch di, the taper of the optical lens 13, the respective fold rate (Nd), and the like. In this embodiment, a Fresnel optical lens made of a PMMA material having no taper and equal ring depth is used, and the optical surface of the figure is a flat surface. Table (7) fs= 2.530 υ= 0 Surface No. R or RF di Ndi SO OO 0.10 SI oo 0.52 1.410 S2* 1.250 2.00 1.491 * Aspherical Zone Fesnel In Table (7), the optical surface (Surf.No·) has The * marked * is the aspherical Fresnel optical surface. The following list (8) is the coefficient of the aspheric surface of the Fresnel optical surface radius Rp in the formula (9), the radius of the first Fresnel ring along the center 1^, the radius of the last Fresnel ring rn, Philippine The depth of the Neel ring and the number of Fresnel rings · Table (8)

Aspherical Surface κ a2 a4 a6 -1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 Fesnel Surface(mm) hd vx rn No. of Zone 0.06 0.387 2.510 41 In this embodiment, the optical lens 13 is refracted The rate Nd2 is 1.491, and the Abbe number vd2 is 32 PMMA plastic material. The light refraction angle is formed by matching the refractive index of the sealant layer 12 21 M347533 and the optical lens 13 with the Abbe number. After being concentrated by the optical lens 13, the elliptical angle of the X direction of 68° and the Y direction of 43° is β=72·48 lumens at infinity (in terms of 100 times fs) (ignoring the refraction and scattering of air) Equivalent effect); Equations (1), (2), (3), (7), and (8) are:

(φ -〇) V y { π j 1 ^ J , Λ 0.1672 /7 = 0.9233 ’1/2 = 23.5 Φχ = 34.0 21.5 Λ = rn 1.0081 1)^-=( fs • 0.2231

Ed can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 15 is a diagram showing the relationship between the light intensity distribution of the LED assembly and the polar coordinates of the illumination angle of the present embodiment. From the above Table (7), Table (8) and Figure 15, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and a predetermined elliptical light type. The intensity of light at all angles is uniform, which enhances the applicability of the creation. &lt;Fifth Embodiment&gt; 22 Μ3Φ7533 Please refer to FIG. 6 and FIG. 16 , which are respectively a schematic diagram of a light-emitting diode assembly using the planar Fresnel optical lens and the light intensity distribution of the present embodiment. The relationship diagram with the polar coordinates of the corner. The lower list (wood) lists the radius of curvature R of the LED wafer 11 from the light source side to the image side along the central axis Z, the sealant layer 12, the light source side optical surface R1 of the optical lens 13 and the image side optical surface R2, respectively. Niel center axis condensing surface curvature radius RF, spacing di, taper υ of optical lens 13, refractive index (Nd), and the like. In this embodiment, a flat Fresnel optical lens having a taper and an equal ring pitch is used, and the radius of curvature RF of the Fresnel optical lens is a spherical surface, and the optical surface of the R1 of Fig. 6 is a plane. Table (9) fs= 5.061 υ= 0 Surface No. R or RF di Ndi SO OO 0.10 SI oo 0.52 1.410 S2* 2.500 2.00 1.582

Spherical Zone Fesnel

In Table (9), the optical surface (Surf·No·) has a Fresnel optical surface marked with a spherical surface. The following list (10) is the coefficient of the aspheric surface of the Fresnel optical surface radius RP in the equation (9), the radius of the first Fresnel ring ri along the center, the radius of the last Fresnel ring rn, Frey Ring spacing rt and number of Fresnel rings: Table (10)

Fesnel Surface (mm) rt rn No. of Zone 0.0625 1500 41 In the present embodiment, the optical lens 13 is made of a glass material having a refractive index Nd2 of 1.582 and an Abbe number vd2 of 61.7. The light refraction angle is formed by matching the refractive index and the Abbe number of the lens 13 with the sealant layer 12 and the light 23 M347533. After being collected by the optical lens 13, the X direction is 68° and the Y direction 43 is obtained. The elliptical angle is β=72·48 lumens at infinity (in terms of 100 times fs) (ignoring the effects of refraction and scattering of air); equations (1), (2), (3), 7) and (8) are: 77= 0.8980

11/2 = 22.5 Φχ = 43.0 ^ = 34.5 2.0243 (^2~1)^= 0.2300 J s

0.4536

^7= 0,1111 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 16 is a diagram showing the relationship between the light intensity distribution and the polar angle of the LED assembly of the present embodiment. From the above Table (9), Table (10) and Figure 16, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and a predetermined elliptical light type. The intensity of light at all angles is uniform, which enhances the applicability of the creation. &lt;Sixth embodiment&gt; 24 M347533 Referring to Fig. 6 and Fig. 17, the light intensity distribution of the light-emitting diode assembly constituted by the Philippine optical lens and the polar coordinate of the illumination angle are _. And in the list (10-) of the present embodiment, the radius of curvature R of the light source side light R1 and the image side optical surface R2 of the optical lens 13 from the light source side to the image side edge are respectively listed. Or the Fresnel middle surface curvature radius RF, the spacing di, the taper of the optical lens 13, the respective light extraction rate (Nd), and the like. In this embodiment, a Philippine optical lens made of a glass material having no taper and equal ring depth is used, and the flat curvature radius rf of the Fresnel lens is a spherical surface, and the R1 optical surface of FIG. 6 is a flat surface. (Η—) fs= 2.530 0 Surface No. R or RF di Ndi, SO OO 0.10 ------ SI oo 0.52 !·4ΐ〇S21 1.250 4.96

Aspherical Surface —〇〇〇〇E,〇l Ν〇· Of Zone A4

Fesnel Surface(mm) hd

A 0.06 0.387 h_ — 2.478 46 In this embodiment, the optical lens 13 utilizes a refractive index Nd2 of 1.582 25 1

Aspherical Zone Fesnel In Table (11), the optical surface (Surf·No·) has an aspherical Fresnel optical surface. The following list (12) is the coefficient of the aspheric surface of the Fresnel optical surface in the equation (9), the first radius of the second ring radius r! from the center, the radius of the last Fresnel ring rn, Fresnel Ring depth ratio and number of Fresnel rings: / Table (12) M347533 Abbe number vd2 is made of glass material of 61.7. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After the optical lens 13 is collected, the elliptical angle of the X direction of 68° and the Υ direction of 43° is β=72·48 lumens at infinity (in terms of 100 times fs) (ignoring the refraction and scattering of air) Equivalent effect); Equations (1), (2), (3), (7), and (8) are:

η = 0.8913 IU2 - 32.5 Φχ- 31.0 17.0 L0213

1.1401 J s

/g= 0.1030 = 0,4161 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 17 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above Table (11), Table (12) and Figure 17, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and predetermined elliptical light. The type, the light intensity of each angle is uniform, which can enhance the applicability of the creation. 26 M347533 <Seventh Embodiment> Please refer to FIG. 6 and FIG. 18, which are respectively a schematic diagram of a light-emitting diode assembly composed of the Fresnel optical lens of the present invention and a light intensity distribution and an illumination angle of the police surface example. Polar coordinate diagram. In the list (13), the radius of curvature R of the light source side light R1 and the image side optical surface R2 of the LED chip U, the sealant layer 12, and the optical lens 13 from the light source side to the image side are respectively listed. Niel center axis surface curvature radius rf, spacing di, optical lens 13 taper 各, each refractive index (Nd) and so on. In this embodiment, a Fresnel optical lens made of a flat glass material having no taper and equal ring depth is used, and the Fresnel optical &amp; sheet: the radius of curvature RF is a spherical surface, and the optical surface of the R1 of Fig. 6 is a plane. Table (13) fs= 2.530 υ= 0 Surface No. R or RF Φ Ndi SO OO 0.10 SI oo 0.52 1.410 S2* 1.250 4.99 1.582 * Aspherical Zone Fesnel 10 In Table (13), optical surface (Surf·Ν 〇·) There is a non-spherical Philippine optical surface marked with *. The following list (14) is the coefficient of the aspheric surface of the Philippine optical surface radius Rp in the equation (9), the radius of the first Fresnel ring r! from the center, the radius of the last Fresnel ring rn, Fresnel ring depth hd and number of Fresnel rings: Table (fourteen)

Aspherical Surface K A2 a4 A6 -1.1000E+00 0.0000E+00 2.4000E-05 5.7000E-08 Fesnel Surface(mm) hd No. of Zone 0.06 0.388 2.494 38 27 M347533 In this embodiment, the optical lens 13 is refracted. The rate is Nd2 is 1.582, and the Abbe number vd2 is 61.7 glass material. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After being collected by the optical lens 13, the elliptical angle of the angle of 65° in the X direction and 40° in the Y direction is β=69·33 lumens at infinity (in terms of 100 times fs) (ignoring the refraction and scattering of air) Equivalent effect); Equations (1), (2), (3), (7), and (8) are:

0.1252 soil = 0.2799 77 = 0.8832 '1/2 = 27.5 ΦΧ- 33.7 19.5 L·: rn 1.0146 -1)^= j fs 1.1475 can satisfy conditional formulas (1), (2), (3) and (7) ). Fig. 18 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (13), Table (14) and FIG. 18, it can be proved that the schematic diagram of the light-emitting diode assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and predetermined elliptical light. The type, the light intensity of each angle is uniform, which can enhance the applicability of the creation. 28 M347533 &lt;Eighth Embodiment&gt; Referring to FIG. 6 and FIG. 19, the schematic diagrams of the light-emitting diode assembly using the planar Fresnel optical lens and the light intensity distribution of the present embodiment are respectively shown in FIG. It is related to the polar coordinates of the corner. In the following table (fifteen), the curvature of the light source side optical surface R1 and the image side optical surface R2 of the wafer η, the sealant layer 12, and the optical sharp film 13 from the light source side to the image side along the central axis z are respectively listed. R or phenanthrene-central axis condensing surface curvature radius RF, spacing di, taper of optical lens 13, enthalpy rate (Nd), and the like. In this embodiment, a Philippine optical lens made of a flat glass material having a twist and an equal ring depth is used, and the _kR1 optical surface is a flat surface. Table (15) fs= 2.530 υ= 3.505&quot; Surface No. R or RF Ndi, SO OO 0.10 iii^^ SI oo 0.52 !-4l〇 S2* 1.250 2.00 1·58? * Aspherical Zone Fesnel

In the table (fifteen) towel, the optical surface (Surf. No,) is marked with a * aspherical Philippine 圼 光学 optical surface. The following list (16) is the coefficient of the aspheric surface of the Fresnel optical surface ^, the coefficient of the equation (9), the radius A of the first Philippine ring radius along the center, the radius of the last Fresnel ring rn, Fresnel ring depth ^ and the number of Philippine rings · Table (16)

Aspherical Surface K a2 a4 a6 -1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 Fesnel Surface(mm) hd No. of Zone 0.06 0.387 2.387 37 29 M347533 In this embodiment, the optical lens 13 is refracted. The rate is Nd2 is 1.582, and the Abbe number vd2 is 61.7 glass material. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After passing through the optical lens 13, it is 65 in the X direction. , the elliptical angle of 60° in the Y direction, β=69·588 lumens at infinity (in terms of 100 times fs) (ignoring the effects of refraction and scattering of air); equations (1), (2), (3), (7) and (8) are:

η = 0.8976 Im = 22.0 Φχ = 37.5 φγ = 27.0 1.0598 rn

0.4601

0.2176 1 = 0.3022 The conditional expressions (1), (2), (3), and (7) can be satisfied. Fig. 19 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (fifteen), table (sixteen) and FIG. 19, it can be proved that the schematic diagram of the light-emitting diode assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and predetermined elliptical light. The type, the light intensity of each angle is uniform, which can enhance the applicability of the creation. M347533 &lt;Ninth Embodiment&gt; Please refer to FIG. 6 and FIG. 20, which are respectively a schematic diagram of a light-emitting diode assembly using the planar Fischer optical lens and the light intensity distribution of the present embodiment. The relationship diagram with the polar coordinates of the corner. In the following list (17), the radius of curvature R of the LED wafer 11, the sealant layer 12, the light source side optical surface R1 and the image side optical surface R2 of the optical lens 13 from the light source side to the image side along the central axis Z are respectively listed or The Fresnel center axis condensed surface has a radius of curvature RF, a pitch di, a taper of the optical lens 13, a refractive index (Nd), and the like. In this embodiment, a Fresnel optical lens made of a flat glass material having a taper and an equal ring depth is used, and the optical surface of the iu of Fig. 6 is a flat surface. Table (17) fs= 2.530 υ= 7.172 · Surface No. Ror RF di Ndi SO OO 0.10 SI oo 0.52 1.410 S2* 1.250 2.00 1.582 * Aspherical Zone Fesnel • In Table (17), optical surface (Surf.N 〇·) There is a non-spherical Philippine optical surface marked with *. The following list (18) is the radius of the Philippine optical surface radius &amp; aspherical surface of the formula (9), the first Philippine ring radius Γι along the center, the last Fresnel ring radius rn, The depth of the Fresnel ring knows the number of Philippine rings: Table (18)

Aspherical Surface K a2 a4 a6 -L0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 Fesnel Surface(mm) hd h No. of Zone 0.06 0.387 2.258 33, 31 M347533 In this embodiment, the optical lens 13 is utilized. It is made of a glass material having a refractive index Nd2 of 1.582 and an Abbe number Vd2 of 61·7. The light refraction angle is formed by matching the refractive index of the sealant layer I2 and the optical lens 13 with the Abbe number. After being collected by this optical lens 13, it is 68 in the X direction. The elliptical angle of the 33° direction of the Υ, β=71·267 lumens at infinity (in terms of 100 times color) (ignoring the effects of refraction and scattering of air); formulas (1), (2), (3), (7) and (8) are:

η: 0.9078 /1/2 = 34·0 Φχ = 33.8 Φγ = 16.8 4= 1.2045 rn

(^2-l)^= 0.4601 J s

0.2176 Ed 0.4998 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 2 is a diagram showing the relationship between the light intensity distribution and the polar angle of the LED assembly of the present embodiment. From the above table (17), Table (18) and Figure 2〇, the plane of this creation can be proved! The schematic diagram of the LED assembly formed by the optical lens of the Muir has a high-efficiency _ _ light type, and the light intensity of each angle is uniform, which can enhance the application of the creation. 32 M347533 &lt;Tenth Embodiment&gt; Please refer to FIG. 6 and FIG. 21, which are respectively a schematic diagram of a light-emitting diode assembly using the planar Fresnel optical lens and the light intensity distribution of the present embodiment. The relationship diagram with the polar coordinates of the corner. In the following list (nine), the radius of curvature R of the LED wafer 11, the sealant layer 12, the light source side optical surface R1 and the image side optical surface R2 of the optical lens 13 from the light source side to the image side along the central axis Z are respectively listed or Fresnel center axis condensing surface curvature radius RF, spacing di, taper υ of optical lens 13, φ φ rate (Nd). In this embodiment, a Fresnel optical lens made of a flat glass material having a taper and an equal ring pitch is used, and the R1 optical surface of Fig. 6 is a flat surface. Table (19) fs= 2.530 υ= 0 Surface No. R or RF di Ndi SO 〇〇0.10 SI 〇〇0.52 1.410 S2* 1.250 2.00 L582 * Aspherical Zone Fesnel • In the table (19), the optical surface (Surf .No·) There is a Fresnel optical surface with an aspherical surface. The following list (20) is the coefficient of the aspheric surface of the Fresnel optical surface radius RP in the equation (9), the radius of the first Fresnel ring q along the center, the radius of the last Fresnel ring rn, Philippine Nere ring spacing rt and Fresnel ring number: Table (20)

Aspherical Surface

Fesnel Surface(mm) _K_A2_A4_ -1 0000E+00 0·0000Ε+00 0.0000E+00 0·0000Ε+00 rt rn No. of Zone 05 1500 Γ 33 M347533 In this column, the optical lens 13 is folded, Abe The number vd2 is a broken material of 6L7, where 2 is 1.582, the refractive index of the lens 13 is controlled, and the sealing layer 12 and the optical lens U are collected, and the angle is taken in the direction of the χ. Via Π;:,...(4) Count 2 = (2) (Ignore the effects of refraction and scattering); Equations (1) (3), (7), and (8) are: η [1/2 Φχ = L. rn 0.9214 26.0 40.5 35.0 1.0121 (沁2 - 1)^· c/2-1) Sub = 0.4601

{ ^ ) 1 ^ J •/g= 0.0081 1/2

Ed 0.1366 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 21 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (19), Table (20) and FIG. 21, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention has high efficiency and predetermined elliptical light. The type, the uniformity of light intensity at each angle can enhance the applicability of this creation. 34 M347533 &lt;Eleventh Embodiment&gt; Referring to FIG. 6 and FIG. 22, the light intensity distribution and the illumination angle of the light-emitting diode (4) formed by the Philippine optical lens respectively The polar coordinate diagram. Unknown® and the list (20-) in this embodiment list the curvature of the LED wafer U, the sealant layer 12, and the optical lens 13 of the axis Z, respectively, and the curvature of the image side optical surface R2. Philippine _ middle ^ light surface curvature radius ~, spacing di, optical mirror W taper υ, = luminosity (Nd) and so on. This embodiment is made of Mi, such as Mu, etc., which is made of a ring-shaped glass material. The lens of Fig. 6 is R! Optics: It is a flat surface. Back Table (21) fs= 2.530 υ= 0 Surface No. R or RF di Ndi~ SO OO 0.10 SI 00 0.52 1.410 S21 1.250 2.00 1.582

Aspherical Surface

K A2 a4 a6 -1.0000E+00 0.0000E+00 O.OOOOE+OO 0.0000E+00

Fesnel Surface(mm)

No. of Zone 0.0625 2.500 40 35 1

Aspherical Zone Fesnel In the table (Twenty-), the optical surface (Surf.N.·) has a non-spherical Philippine optical surface. The following list (22) is the coefficient of the aspheric surface of the Fresnel optical surface radius RP in the equation (9), the radius of the first Philippine ring radius r along the center, and the radius of the last Fresnel ring rn , Fresnel ring pitch &amp; and Philippine ring number: Table (22) M347533 In this embodiment, the optical lens 13 is made of a glass material having a refractive index Nd2 of 1.582 and an Abbe number vd2 of 61.7. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After the optical lens 13 is collected, the elliptical angle of 60° in the X direction and 80° in the Y direction is β=72·164 lumens at infinity (in 100 times) (ignoring the refraction and scattering of air, etc.) Effect); Equations (1), (2), (3), (7), and (8) are:

η= 0.9192 IV2 = 30.0 Φχ: 39.4 Φ,30 ^-= 1.0121

0.4601 Js

•Λ = 0.2184 0.1147

Ed can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 22 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (21), Table (22) and Figure 22, it can be proved that the schematic diagram of the LED assembly formed by the planar Fresnel optical lens of the present invention is highly efficient and has a predetermined The elliptical light type has uniform light intensity at all angles, which enhances the applicability of the creation. 36 M347533 &lt;Twelfth Embodiment&gt; Please refer to FIG. 6 and FIG. 23, which are respectively a schematic diagram and a schematic diagram of a light-emitting diode assembly formed by using a flat-concave Philippine Lille optical lens. The polar coordinate relationship between the light intensity distribution and the illumination angle of the embodiment. In the following list (12), the radius of curvature r of the LED wafer 11, the sealant layer 12, the light source side optical surface R1 and the image side optical surface R2 of the optical lens 13 from the light source side to the image side along the central axis Z are respectively listed. Or Fresnel center axis condensing surface curvature radius Rf, spacing out, taper υ of optical lens 13, refractive index (Nd) and so on. In this embodiment, a Fresnel optical lens made of a flat and concave glass material having no taper and equal ring depth is used, and the concave surface is directed to the side of the light source (23) fs=2.530 υ= 0 Surface No. R or Rp Di Ndi — SO OO 0.10 SI 30.00 0.62 1.410 S2* 1.250 1.90 1.582 In the table (23), the optical surface (Surf.No·) has a Fresnel optical surface marked with aspherical surface. The following list (24) is the Fresnel optical surface half search Rp aspheric surface in the formula (9) coefficient, the first Philippine $ Lille ring radius 1 ^, the last Fresnel ring Radius rn, Fresnel ring depth hd and number of Fresnel rings: Table (24) K a2 a4 8 6 /\SpilcriCai oUriaCC 1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 hd ri No . of Zone rcSIlcl ouriaCc^IxlIIlj 0.06 0.387 2.510 42 37 M347533 In the present embodiment, the 'optical lens 13 is made of a glass material having a refractive index ^1 and an Abbe number W of 61.7. The light refraction is formed by matching the refractive index of the sealing layer 12 and the optical lens 13 with the Abbe number. After being collected by this optical lens 13, it is 6 inches in the X direction. γ direction 4 (^ ==circular angle ' at infinity (in 10 〇 fs) ρ = 695 〇 6 lumens (ignoring the effects of air refraction and scattering); formula (1), (7) , "(3), (7) and (8) are:

η: 0.8854 /1/2= 30.0 Φχ^ 33.1 19.0 1.0008 rn

(沁2 -1) capital = 0.4361

0.2053

0.2188 can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 23 is a diagram showing the relationship between the light intensity distribution of the LED assembly of the embodiment and the polar coordinates of the illumination angle. From the above table (23), Table (24) and Figure 23, it can be proved that the schematic diagram of the light-emitting diode assembly formed by the flat concave Fresnel optical lens of the present invention is highly efficient and has a predetermined schedule. The elliptical light type has uniform light intensity at all angles, which enhances the applicability of the creation. 38 M347533 &lt;Thirteenth Embodiment&gt; Please refer to FIG. 6 and FIG. 24, which are respectively a schematic diagram of a light-emitting diode assembly using the flat concave Fresnel optical lens and the light of the embodiment. The relationship between the intensity distribution and the polar coordinates of the illumination angle. In the following table (25), the radius of curvature of the LED wafer 11, the sealant layer 12, the light source side light-receiving surface R1 and the image side optical® R2 of the optical lens 13 from the light source side to the image side are respectively listed. &amp; or Philippine central axis = radius of curvature of the surface of the light RF, spacing di, taper of the optical lens 13, 各 ♦ rate (Nd) and so on. In this embodiment, a Fresnel optical lens having a taper-free and equiangular deep-concave glass material is used, the concave surface of which is toward the side. Your table (25) fs= 2.530 υ= 〇Surface No. RorRF Ndi SO OO 0.10 SI 9.00 0.87 1.410 S2* 1.250 1.65 1.582 * Aspherical Zone Fesnel *In the table (25) towel, optical surface (SUrf.N 〇·) There is a Fresnel optical surface with an aspherical surface. The following list (26) is the coefficient of the aspheric surface of the phenanthrene optical surface Rp in the formula (9), the radius of the first Fresnel ring along the center ^, the radius of the last Fresnel ring Γη, Fresnel Ring depth ratio and number of Philippine rings: Table (26)

Aspherical Surface K a2 a4 a6 -1.0000E+00 0.0000E+00 0.0000E+00 0.0000E+00 Fesnel Surface(mm) hd No. of Zone 0.06 0.387 2.510 35 39 M347533 In this embodiment, the optical lens 13 is refracted. The rate is Nd2 is 1.582, and the Abbe number vd2 is 61.7 glass material. The light refraction angle is formed by matching the refractive index of the sealant layer 12 and the optical lens 13 with the Abbe number. After the optical lens 13 is collected, the elliptical angle of 60° in the X direction and 40° in the Y direction is β=69·506 lumens at infinity (in terms of 100 times fs) (ignoring the refraction and scattering of air) Equivalent effect); Equations (1), (2), (3), (7), and (8) are:

η - 0.8828

Im = 29.0 Φχ = 31.0 = 20.2 1.0081 (^20.3786 ./ =: 0.2227 0.2103

Ed can satisfy the conditional expressions (1), (2), (3), and (7). Fig. 24 is a diagram showing the relationship between the light intensity distribution of the LED assembly and the polar angle of the illumination angle of the present embodiment. From the above table (25), Table (26) and Figure 24, it can be proved that the schematic diagram of the light-emitting diode assembly formed by the flat-concave Fresnel optical lens of the present invention is highly efficient and has a predetermined schedule. The elliptical light type has uniform light intensity at all angles, which enhances the applicability of the creation. The above is only a preferred embodiment of the present invention, and is intended to be illustrative only and not limiting. It will be apparent to those skilled in the art that many changes, modifications, and equivalents may be made in the spirit and scope of the invention as defined by the appended claims. [Simple diagram of the diagram] Figure ΙΑ, 1B is a schematic diagram of the use of LED optical lens in the LED component of the conventional art; Figure 2 is a three-dimensional schematic diagram of the use of the non-tapered Fresnel LED optical lens in the LED component of the present invention; The use of the present invention is a three-dimensional schematic diagram of a tapered Fresnel LED optical lens in the LED assembly; Figure 4 is a relationship diagram of the radius of curvature of the Fresnel LED optical lens and the concentrated surface of the vertical ring-tooth ring spacing used in the present creation; Figure 5 is a relationship between the radius of curvature of the Fresnel LED optical lens and the condensed surface of the vertical ring gear used in the present invention; Figure 6 is a schematic diagram of the LED optical lens of the present invention in the LED assembly; The taper representation of the tapered Fresnel LED optical lens; Figure 8 is a schematic diagram of the optical path of the Fresnel LED optical lens in the LED component of the present invention, and Figure 9 is the Fresnel LED optical lens of the present invention, group A light and B group line Refraction is not intended; Figure 10 is a schematic diagram of the Group A light and B group light path of the Fresnel LED optical lens of the present invention; Figure 11 is a schematic diagram of the combination of the Group A light and the B group line of Figure 9 and Figure 10 into a uniform light intensity M347533 ; FIG. 12 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar angle of the illumination unit according to the first embodiment of the present invention; FIG. 13 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination unit according to the second embodiment of the present invention; FIG. 15 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination unit according to the third embodiment of the present invention; FIG. 15 is a diagram showing the relationship between the light intensity distribution and the angle of the illumination of the LED component of the fourth embodiment of the present invention; FIG. 17 is a diagram showing the relationship between the light intensity distribution of the LED component of the fifth embodiment and the polar coordinate of the illumination angle; FIG. 17 is a diagram showing the relationship between the light intensity distribution and the angle of the illumination of the LED component of the sixth embodiment of the present invention; FIG. 19 is a diagram showing the relationship between the light intensity distribution of the LED component of the eighth embodiment and the polar coordinate of the illumination angle; FIG. 19 is the ninth relationship between the light intensity distribution and the illumination angle of the LED component of the eighth embodiment; FIG. 21 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination unit according to the tenth embodiment of the present invention; FIG. 22 is the eleventh figure of the creation. FIG. 23 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination unit according to the twelfth embodiment of the present invention; and 42 M347533 FIG. 24 is the creation of the present invention. A diagram showing the relationship between the light intensity distribution of the LED assembly of the thirteenth embodiment and the polar coordinates of the illumination angle. [Main component symbol description] 10 LED component '11, 21 LED wafer 12, 22 sealant layer 13, 23 optical lens R1 light source side optical surface or its radius of curvature R2 image side optical surface or its radius of curvature Rf image side Fresnel Concentration radius of the optical surface of the optical surface d0 The thickness of the LED wafer on the central axis dl The optical surface distance from the LED wafer surface to the optical lens source side on the central axis d2 The central axis optical lens thickness; ri The first ring radius Γη The last ring radius rt Ring Spacing hd ring depth

Nd refractive index vd Abbe number

Illumination from Ed LED wafers Illumination at half the maximum light intensity emitted by the E1/2 Fresnel optical lens a Luminous flux from the LED wafer β Luminous flux at the image side relative to infinity 43

Claims (1)

M347533 IX. Patent application scope: 1. A flat Fresnel LED optical lens for use in a light-emitting diode assembly, the light-emitting diode assembly is arranged along the central axis from the light source side to the image side. The invention comprises a light emitting diode chip, an adhesive layer and an optical lens. The optical lens has an image side optical surface and a light source side optical surface, wherein the image side optical surface is a flat surface. Fresnel optical surface, and the torus of the Fresnel optical surface is formed by a concentrated curved surface, and the torus surface has a vertical ring tooth so that the light emitted by the LED chip passes through the sealing layer And the optical lens can form an elliptical angle of light, and the optical lens satisfies the following condition: 0.7 &lt;^&lt;2.2 0.1 &lt;(^2-1)φ-&lt; 1.25 JS wherein f; The effective focal length of the optical lens, rn is the radius of the last ring of the Fresnel optical surface, d2 is the thickness of the central axis optical lens, and 1^2 is the refractive index of the optical lens. 2. The planar Fresnel light-emitting diode optical lens according to claim 1, wherein the optical lens further satisfies the following condition: (V, 丫+卜-叫2 { ^ J 1 ^ J ./g&lt;;0_6 where: Λ (~Tyfs M347533 D :tan&quot;:tan&quot; ^dO + dl + dl + Ly) where fs is the effective focal length of the optical lens, rn is the radius of the last ring of the Fresnel optical surface, mountain For the central axis optical lens thickness, Nd2 is the refractive index of the optical lens, 2 &lt; is the angle (degree deg·) at half the maximum light intensity in the direction of the light emitted from the optical lens, 2 &amp; The angle at half the maximum light intensity in the Y direction (degree deg·), 2Lx is the length of the LED wafer in the X direction, the length of the LED wafer in the Y direction, fg is the focal length of the optical lens, &amp; The radius of curvature of the surface, rf is the radius of curvature of the concentrated surface of the image side of the Philippine optical surface, d0 is the thickness of the LED wafer, the thickness of the sealing layer of the mountain is the central axis, and d is the radius of the optical surface of the optical lens on the image side. As described in the scope of claim 1 a neil light-emitting diode optical lens, wherein the optical side of the optical lens is a plane 4, and the planar Fresnel light-emitting diode optical mirror according to claim 1 is 1 The optical off-optical surface of the optical lens is a concave surface 0 5 , = the flat phenanthrene-light-emitting diode two-preset lens described in claim 1 , wherein the concentrated curved surface for transferring the pentent optical surface is spherical : Affirmation of the patent fei 淫 尔 发光 发光 & 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 予 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 45 7 7 7 7 7 7 7 7 7 7 7 7 The planar Fresnel light-emitting diode optical lens according to Item 1, wherein the ring surface of the Fresnel optical surface is an equi-ring depth. 8. The planar Fresnel light-emitting diode according to Item 1 of the patent application scope. The polar optical lens, wherein the toroidal surface of the Fresnel optical surface is an equal ring pitch. 9. The planar Fresnel light emitting diode optical lens according to claim 1, wherein the outer edge of the optical lens The surface has a taper. The planar Fresnel light-emitting diode according to the first aspect of the invention, wherein the optical lens is made of one selected from the group consisting of a plastic optical material and a glass optical material. 11. A light-emitting diode assembly, The planar Fresnel light-emitting diode optical lens, a glue layer and a layer according to any one of claims 1 to 10, which are arranged in a sequence from the light source side to the image side along the central axis. a light-emitting diode wafer; characterized in that: the light-emitting diode assembly has an elliptical illumination type and satisfies the following condition: El/2 &lt; 0.7 Ed , wherein, Ευι =-^; (^rrt*sin^) *(rw*sin^) where rn is the radius of the last ring of the Fresnel optical surface, and 2 is the angle (degree deg·) at which the light is emitted through the optical lens at half the maximum light intensity in the X direction, and 2 is The optical lens emits light at the Y-square 46 M347533 to the angle of half the maximum light intensity / 1/2 (degree), rn is the radius of the last ring of the Fresnel optical surface, α is the luminous flux of the LED chip, β is the image The side is relatively infinity (100 times fs) without considering the attenuation factor The flux of light, η is the luminous flux ratios 7 = ρ / α, Ed illuminance of the LED chip emits. 12. The illuminating diode assembly of claim 11, wherein the ratio of the luminous flux of the illuminating diode component to the luminous flux at the infinity of the image side satisfies the following condition: _β!α&gt; %5%, where α is the luminous flux of the light emitted by the light-emitting diode wafer, and β is the luminous flux of the effect of refracting the scattering and scattering of air at the infinity of the image side of the light-emitting diode assembly.