TWM345357U - Aspherical LED angular lens for central distribution patterns and LED assembly using the same - Google Patents

Description

M345357 VIII. New description: [New technical field] This is a kind of aspherical positive-angle LED light-emitting diode and its light-emitting diode, especially the four-wire light. The optical lens of the type, and the formed light-emitting diode assembly, can be used for illumination of a single or composed coffee array. [Prior Art] A light-emitting diode LED has advantages of low voltage, low power consumption, and long life, and has been widely used in fields such as an indicator and an illuminator. However, since the light emitted by the LED chip is a point light source and the brightness is not uniform, many researches have been conducted on the accumulation of light, such as reducing the wafer and improving the luminous efficiency, and the use of the optical lens is also an important technical development direction. In the design of the LED optical lens, it can be divided into a primary optical lens (primaiy optical lens) and a secondary optical lens (secondary optical lens); the primary optical lens is a lens directly packaged on the LED chip, generally gathered (c〇 Ncentrate) is based on light; secondary optics are used in single or several LED arrays, with a dispersion of light. In the optical lens design of the prior art, for example, the symmetrical aspherical lens is used in the ES2157829, the Japanese patents jP3〇32〇69, JP2002-111068, JP2005-203499, the US patent US2006/187653, the Chinese patent CN101013193 exclusively use a spherical lens, JP 2002-221658 uses a spherical lens or the like for a Bulk type LED. For high-order applications, in addition to being able to concentrate light, an optical lens can produce a specific distribution pattern at a uniform peak intensity, such as a large angle, a small angle, a circle, an ellipse, etc. Special light type for use with LED arrays to produce the best optical results. Application of Primary Optical Lens 5 M345357 As shown in FIG. 1, a lens 23 is coated on the LED chip 21, and when the LED chip 21 emits light, it is collected via the lens 23 to emit a predetermined light-type light. The optical lens of this time is in the prior art, such as Japanese Patent No. JP-A-4-356512, JP2005-229082, JP2006-072874, JP2007-140524, JP2007-115708, etc.; US Patent No. 2005/162854 > US2006/105485, US2006/076568, US2007/114551, US2007/152231, US7,344,902, US7,345,416, US7,352,011; Taiwan patent TW M332796, etc. use optical lenses to produce a light type; and as a Japanese patent jP6〇〇〇7425, US patent WO/2007/100837 An elliptical light type or the like is produced; or a rectangular, square or strip light type of less than 160 degrees is produced as in Chinese Patent No. 200710118965.0. With the advancement of technology, electronic products are constantly moving toward light, short, and versatile, such as digital still cameras, PC cameras, and network cameras. In addition to the lens, mobile phones (mobile phones), etc., even personal digital assistants (PDAs) and other devices have the need for lenses, so LED flashlights for LED lighting or lighting used in such products are often single. Or a plurality of LED components are formed into an array; and for the convenience of carrying and ergonomic requirements, the LED lamps for LED flash or lighting need not only meet the optical communication, but also match different light-type LED components, and also need to have smaller The volume is low with the cost of the car father. In the demand for LED-sub-optical lenses, conventional optical lenses having a complicated outer shape or having a diffraction surface have disadvantages such as difficulty in manufacturing, deformation of plastic injection, difficulty in forming glass, or cost. Thus, the design and composition of a light-emitting diode lens that is simple in shape and easy to manufacture can be used to produce an inversion of the LED and produce a peak intensity of greater than 72. Less than. The LED component formed by the circular light type of the positive angle has a luminous flux ratio greater than the requirement of _, which is an urgent requirement of the user. [New content] 6 M345357 The main purpose of this creation is to provide an aspherical positive-angle light-emitting diode optical lens for use in LED components. The LED component is composed of a light emitting diode chip (LED die) to emit light, an optical lens to collect light and form a positive angle circular light shape of more than 72° and less than 108° with uniform light intensity, and is used for optical lens and illumination. The inter-polar body is composed of a sealant. Wherein, the optical lens is a lens made of an optical material having a concave surface and a convex surface, wherein the concave surface is a light source side optical surface toward the light source, the convex surface is an image side optical surface toward the image side, and the concave surface and the convex surface have at least one optical surface. It is aspherical and can satisfy the following conditions: and 1 and 2 <1.0 0.7 < (1) 8<<180 (2) (3) 0.2 <(iV,2-1)^1 <0.4 J s Where 'fs is the length of the effective focal length of the optical lens (effeetive f〇cai iei^h), R1 is the radius of curvature of the optical surface of the light source side, R2 is the radius of curvature of the optical side of the image side, and d2 is the thickness of the optical lens of the central axis, Nd2 is the refractive index of the optical lens. In order to simplify the manufacture, the optical lens can be replaced by an optical lens having a plano-convex shape, the plane of which is a light source side optical surface toward the light source, the convex surface is an image-like surface, and the image-side optical surface is aspherical; (3) and (4) Conditions: ^ (3) (4) °·2^ -1)^-<0.4 J s r2 α·ζ where R2 is the radius of curvature of the image side optical surface, d〇 is the central axis of the led The wafer thickness dl is from the surface of the LED wafer on the central axis to the optical surface of the optical lens, and the optical surface distance is 7 M345357, and d2 is the thickness of the central axis optical lens. Another purpose of this creation is that it is convenient to use and the optical lens can be made of optical glass or optical plastic. A further object of the present invention is to provide a light-emitting diode assembly comprising the aspherical wide-angle light-emitting diode optical lens and a light-emitting diode wafer as described in the present invention, wherein the light-emitting diode is characterized in that The polar body assembly has a greater than 72. Less than 1〇8. The positive angle of the circular light type, the luminous flux ratio is greater than 85% (Α / α285%), and full • sufficient conditions: μ 5 < ω • φ π (5) where, (6) where 'fs is the optical lens The length of the effective focal length, fg is the length of the relative focal length of the optical lens, R1 is the curvature of the optical measuring wire φ, R2 is the radius of solution of the optical surface, 2 ω For the LED chip, the maximum angle of the axis of the ray is symmetrical, μ is the maximum angle of the axis of symmetry of the light emitted through the optical lens, α is the luminous flux of the ray of the coffee chip, and /3 is the relative infinity of the image side (excitation fs The luminous flux of light. Thereby, the aspherical positive-angle light-emitting diode optical lens of the present invention and the resulting light-emitting diode assembly thereof can have more than 72. Less than. The positive angle is rounded f and meets the requirement of a luminous flux ratio greater than 85%, and the silk lens has a simple shape and a thin thickness. The single LED or _LED, can be used for illumination.攸8 M345357 [Embodiment] In order to make the creation more clear and detailed, the preferred embodiment and the following drawings are used to describe the structure and technical features of the creation as follows: Referring to Figure 2, the author The aspherical positive-angle light-emitting diode optical lens and the light-emitting diode assembly thereof are arranged in the LED assembly 1 , and arranged along the central axis z from the light source to the image side in sequence: an LED wafer ^ , a glue 12 and an optical lens 13 , after the light is emitted from the LED chip u, after passing through the sealant 12 , the light is collected by the optical lens 13 and formed to be greater than 72 and less than 1 对称 8 symmetrical to the central axis z. The light beam of the circular light type is irradiated to the image side; the optical lens 13 is a lens made of an optical material having a concave surface and a convex surface, and the concave surface is a light source side optical surface R1 toward the light source, and the convex surface is the image side The image side optical surface is illusory, and the optical surface of at least one of the concave surface and the convex surface is aspherical; the optical surface R1 and R2 of the optical lens 13 and the effective focal length length satisfy the conditions of the formulas (1), (7) and (3), The angle 20 of the light pattern formed by the angle 2ω of the emission and the light intensity formed by the optical lens 13 satisfies the condition of the formula (5). _ Referring to FIG. 4, it is the use of the plano-convex optical lens in the LED group, which is not intended, and is arranged along the central axis z from the light source to the image side in order: a led wafer U, a The glue 12 and a plano-convex optical lens 14. After the light is emitted from the LED chip u, after passing through the sealant 12, the light is collected by the optical lens 14 and formed to be more than 72 symmetrical to the central axis Z. Less than the following. The light beam is irradiated to the image side of the light beam; the optical mirror is a lens made of an optical material whose plane is the light _ optical φ R1 toward the light source, and the convex surface is the optical surface of the image. The optical surface is aspherical; the optical surface R1 and R2 of the optical lens 14 and the effective focal length satisfy the conditions of the formulas (3) and (4), and the angle b emitted by the LED wafer η and the light intensity formed by the light lens 9 13 are formed. The angle of the light type 2 0 satisfies the condition of the formula (5). Please refer to FIG. 2 and FIG. 4 'the optical surfaces R1 and R2 of the optical lens 13 or the optical surface R2 of the optical lens 14 . If the aspherical optical surface is formed, the Aspherical Surface Formula is the equation (7). z = ch2 + AAhA + A6h6 + A%h% + 4〇/210 (7) where c is the curvature, h is the lens height, and K is the conic coefficient (Conic Constant),

A*, Αό, As, and A1() have four, six, eight, and tenth order aspheric coefficients (Nth〇rder Aspherical Coefficient). Referring to FIG. 3 in May, a schematic diagram of the optical path of the LED optical lens for the LED component is shown. In the figure, the maximum angle of the LED chip 11 emitting light is 2ω (symmetric with the central axis z) 'aggregated by the optical lens 13 and refracted by 2ψ The angle (symmetric with the central axis) forms the required light pattern and /?/〇^7〇%, where α is the luminous flux of the LED chip, and β is the image side relatively infinity (1〇〇) Fs) the luminous flux of light, and ignoring the effects of air refraction and scattering. Furthermore, the optical lens 13 can be made of optical glass or optical plastic. ~ As shown in Figure 5, this is a schematic diagram of the light path of the illuminating and convex illuminating lens of the illuminating illuminating lens and the illuminating diode assembly. The maximum angle of the LED chip 11 is 2ω (to the center) The axis z is symmetrical, and is concentrated and refracted via the optical lens 以 to form a desired light pattern and __ at a 20 angle (symmetric with the central axis z), wherein α is the luminous flux of the coffee wafer, and /5 is the image. The side is at least infinity (10) times fs) the luminous flux of the light, and ignores the effects of air refraction and scattering (ering). Furthermore, the optical lens 14 can be made of optical glass or optical plastic. By the above structure, the present spherical spherical light-emitting diode optical lens and the light-emitting diode assembly thereof constituted by M345357 can satisfy more than 72. The circular light pattern of less than 1〇8° enables the LED assembly 10 to emit a predetermined light pattern and meets the requirement of a luminous flux ratio greater than 85% β/α285%), and can be used for single use or with different light types. The array is used. To illustrate the practical application of the present invention, the use of a 1.0 x 1.0 mm wafer, an optical lens 13 (or an optical lens 14) of the LED wafer 11 using a diameter of 5 mm is used to facilitate comparison of the application of the embodiments; however, The size of the LED wafer 11 and the diameter of the optical lens 13 (or optical lens 14) are not limited as described above. Hereinafter, in the first to fourth embodiments, the light-emitting diode assembly using the concave and convex optical lenses, and the fifth to eighth embodiments are formed using the plano-convex optical lenses. Diode assembly. <First Embodiment> Referring to Fig. 2 and Fig. 6, respectively, it is a schematic diagram of an LED component using a led optical lens of the present invention 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 R of the LED chip 11, the sealant 12, the light source side optical surface of the optical lens 13 and the image side optical surface R2 from the light source side to the image side along the central axis Z are respectively listed. :mm) (the radius 0f curvature r), the distance d (unit: mm) (the on-axis surface spacing), the maximum angle at which the LED wafer 11 emits light is 2ω (degree deg), and the optical lens 13 emits a light pattern. Maximum angle 20 (degree deg), each refractive index (Nd) thickness, each Abbe number (sbe) s number vd ° Table (1) 11 M345357 2ω = ΐ3〇2ψ = 92

0.100 m 0.430 70.000 23〇〇 2.400

Light source Silicone R1 R2

(2) Non-optical surfaces

• In the present embodiment, the sealant 12 is filled with a transparent optical fiber which has a refractive index Nd1 of 1.527, an Abbe number > dl, and 34; the refractive index of the optical lens 13 is difficult to be U83, Abbe The number ^d2 is made of glass material of 61·7. The light refraction angle is formed by matching the refractive index of the sealant η and the optical lens 13 with the Abbe number. The LED chip 11 emits blue light with α = 12.15 lumens, and the effective maximum angle is 130. , optical lens • The effective focal length of 13 has a length fs of 4.20 mm; after this optical lens 13 is gathered, it is 92. The positive angle is at infinity (in 丨〇〇 times) 々 = 11 · 〇 92 lumens c ignores the effects of air refraction and scattering); formula (1), (2), (3), (5) And (6) are respectively ··················

(~-1), = J s 0.9337 169.0802 0.3192 1.750 12 M345357

β! a = 10.5839 91.29% γ can satisfy the formulas (1), (2), (3) and (5). FIG. 3 is a schematic diagram of the light path of the LED light passing through the sealant 12 and the lens 13 , and FIG. 6 is a light coordinate distribution of the LED component of the embodiment of FIG. From the above table (1), Table (2) and FIG. 6 , it can be proved that the aspherical surface of the present invention and the light-emitting diode assembly formed by the present invention have a simple surface shape. It is easy to manufacture and has a predetermined light pattern, and the angle of each angle is the applicability of this creation.幵<Second Embodiment> 0 refers to FIG. 2 and FIG. 7 respectively, which are respectively the intention of using the LE〇 optical lens in the LED component tf and the light intensity distribution of the first solid Polar coordinate diagram. In the following list (3), the radius of curvature R and the spacing d of each optical surface from the light source side to the image side along the central axis z are respectively listed, and the maximum angle of the light emitted by the LED wafer U is as large as that of the optical lens I3. Angle 2Ψ, each refractive index (10), each Abbe number Vd. Table (4) shows the coefficients of the aspherical type (7) of each optical surface. 13 M345357 Table (3)

Table (4)

• In the present embodiment, the sealant 12 is filled with a transparent optical silicone having a refractive index Ndl of 1.527 and an Abbe number Vdl of 34; the optical lens 13 is also made of a refractive index N of 1.583 and an Abbe number 々2. Made of 61.7 glass. The LED wafer η emits blue light with α = 1215 lumens, the effective maximum angle is 130°, and the effective focal length of the optical lens 13 has a length fs of 5.66 mm; after the optical lens 13 is collected, it is 92. The positive angle is at the infinity (in 1 〇〇 fs) β = 11.57 lumens (ignoring the effects of air refraction and scattering); equations (1), (2), (3), (5 And equation (6) are: ϋ = 0.7410 -Al_= 9.0579 〇·2676 M345357

β I cc = 5.4518 95.22% Two conditions (1), (2), (3) and (5) ′ Fig. 7 is a diagram showing the light intensity distribution of the LED component of the second embodiment and the polar coordinates of the illumination angle. It is shown by the μ table and the table=7, which proves that the aspherical positive-angle illumination of the creation is a piece of light, and the light-emitting diode assembly has a simple surface shape. And there is a predetermined New Zealand's "the degree of money", which can enhance the applicability of this creation. <Third Embodiment> Referring to Fig. 2 and Fig. 8, respectively, it is a polar coordinate relationship between the use of the led optical lens and the LED of the present invention. In the following table (5), the curvatures of the respective optical surfaces from the light source side to the image side along the central axis 2 are respectively listed as R, _d, and the maximum diametry of the LED wafer „ is 仏, and the optical lens 13 emits the largest light pattern. Angle 20, each refractive index (10)), each thickness (thiCkneSS), and each Abbe number Μ. Table (6) is the coefficient of the aspherical surface (7) of each optical surface. Table (5)

#非球面15 M345357 表(六) K A4 A6 A8 A10 *R1 *R2 3.0000Ε-01 -L0000E+00 -1.0000E - 04 -3.0000E-02 O.OOOOE+OO 1.3079E-02 0.0000E+00 - 1.4006E-04 0.0000E+00 -1.9145E-04 In this embodiment, the sealant 12 is filled with a transparent optical silicone having a refractive index Ndl of ΐ·527 and an Abbe number Vdl of 34; the optical lens 13 is refracted. It is made of a glass material having a Nd2 of 1.583 and an Abbe number of 61.7. The LED chip emits a blue light with a lumen, and the effective maximum angle is 11 〇. The effective focal length of the optical lens 13 has a length fs of 4·20 mm; after passing through the optical lens 13, it is 91. The positive angle is β=11·277 lumens at infinity (in terms of 100 times fs) (ignoring the effects of refraction and scattering of air); equations (1), (2), (3), (5), and (6) are respectively for··

And 1+ and 2 2 2·^-Λ Λ ω — φ π Λ β! a 0.9337 169.0802 0.3191 1.7501 5.2919 91.82% The conditions (1), (2), (3) and (3) can be satisfied, and Figure 8 is the third of the creation. The light intensity distribution of the LED component of the embodiment is close to the polar coordinate of the illumination. From the above table (1), Table (2) and _ 8, it can be proved that the aspherical positive-angled light-emitting diode of the present invention 16 M345357 = two-dimensional simple surface shape, easy to manufacture and has a predetermined light pattern, The thief of all angles - can improve the application of the paste. <Fourth Embodiment> The following is a description of the polar coordinate relationship between the ED optical mirror _ and the fine _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - In the following list _ (seven), the light from the light source side to the image side along the central axis Z is respectively listed: the radius of curvature R of the surface, the spacing d, the maximum angle at which the LED wafer ii emits light is Μ, and the optical lens 13 emits light. The maximum angle of the type 20, each refractive index (10)), each thickness (thickness), each thief vd. Table (4) shows the coefficients of the aspherical type (7) of each optical surface. Table (7) ζω= :120 2ψ= =92 No. Optical surface Curvature diameter Thickness Nd Vd 0 Light source 0.100 1 Silicone 0.430 1.527 34 2 R1 37.635 1.850 1.530 57 *3 R2 2.400. 1 4 image side * aspheric surface table (eight)

In the present embodiment, the sealant 12 is filled with a transparent optical ray enamel having a refractive index Ndl of 1527 and an Abbe number of 34, and the optical lens 13 is made of a refractive index! ^2 is made of 1.530, and the Abbe number vd2 is 57. The LED chip has a blue light of α=12·15 lumens, and the effective maximum angle is 120. The length Ls of the optical lens 13 having a focal length of 17 M345357 is 4.30 mm; after gathering through the optical lens, it is 92. The positive angle is at infinity (in terms of 100 times fs) /5=11.741 lumens (ignoring the effects of air refraction and scattering); equations (1), (2), (3), (5), and 6) They are: ϋ = W 3·尖·Λ — (义 2 -1) 夺 = J s

(d) _ person Λ =

• Λ = β I cc = 0.8801 59.3053 0.2278 1.7931 7.9905 96.63% The conditions (1), (2), (3) and (5) can be satisfied. Figure 9 is a plot of the relationship between the light intensity distribution and the angle of illumination. From the above table (1), Table (2) and FIG. 9, it can be proved that the aspherical positive-angle light-emitting diode optical lens of the present invention and the light-emitting diode assembly thereof have a simple surface shape. It is easy to manufacture and has a predetermined light type, and its light intensity at each angle is uniform, which can enhance the applicability of the creation. <Fifth Embodiment> π Referring to FIG. 4 and FIG. 1A, which are schematic diagrams of the optical path of the LED assembly using the plano-convex optical lens and the polar coordinate relationship of the fifth embodiment. . The light source side optical surface R1 and the image side optical surface of the led film U, the sealant 12, and the optical lens 14 from the light source side to the image side along the central axis z are respectively listed in the table (9). M345357 R2 radius of curvature r (unit: mm), spacing d (unit: (four), the maximum angle of light emitted by the coffee chip h is h (degree deg), the maximum angle of the optical lens w emits light glaze deg) Refractive index (10), each thickness of the feet (four), each Abbe number yd. Table (1) is the coefficient of the aspherical type (7) of each optical surface: Table (9) 2ω=120 2ψ= 90 _Number optical surface curvature radius thickness Nd Vd 0 Light source 0.100 1 Silicone 0.330 1.527 34 2 R1 〇〇2.800 1.583 61.7 *3 R2 2.975 4 Image side*Aspherical surface--- In Table (9), the optical surface (Surf) is marked with an aspherical optical surface. Table (10)

In the present embodiment, the sealant 12 is filled with a transparent optical silicone having a refractive index Ndl of 1527 and an Abbe number Vdi of 34; the optical lens 14 is made of a glass material having a refractive index Nd2 of 1.583 and an Abbe number of vd2 of 61.7. to make. The light refraction angle is formed by matching the refractive index of the sealant 12 and the optical lens 14 with the Abbe number. The led chip 11 emits blue light with α=12·15 lumens, and the effective maximum angle is 12 〇. The effective focal length of the optical lens 14 has a length of 5.091 mm; after the optical lens 14 is collected, the M345357 is at 90. The positive angle is β=11·668 lumens at infinity (in terms of 100 times fs) (ignoring the effects of refraction and scattering of air); equations (3), (4), (5), and (6) are respectively For: 1.7112 1.0852 1.7112 8.1705 96.03% (^2-1)1 = fs (d〇^dx +d2) (0 — ω

β! a- can satisfy the conditional expressions (3), (4) and (5). Figure 10 is a graph showing the relationship between the light intensity distribution and the angle of the illumination. From the above-mentioned Table (1), Table (2) and FIG. 10, it can be proved that the aspherical positive-angle LED light-emitting lens of the present invention and the LED assembly thereof have a simple surface shape. It is easy to manufacture and has a predetermined light type, and its light intensity at each angle is uniform, which can enhance the applicability of the creation. <Sixth Embodiment> Referring to FIG. 4 and FIG. 7 , respectively, the schematic diagram of the relationship between the light intensity distribution and the illumination angle of the sixth embodiment using the plano-convex optical lens in the LED assembly is shown. . In the following list (11), the radius of curvature R and the pitch of the light source side optical surface R1 and the image side optical surface R2 of the LED wafer n, the sealant 12, and the optical lens 14 from the light source side to the image side are respectively listed. d, the LED wafer U emits light _ maximum angle is, for example, the maximum angle 2 ψ of the optical lens 14 emits light, each refractive index (%), each 20 M345357 number of vd. Table (12) Table (11)

4 The coefficients of the aspherical type (7) of each optical Φ·

Table (12)

In the case of m ΛΑ^, the sealant 12 system is filled with a refractive index of 1.527, an Abbe number ^dl 1, a ray, and an optical lens, which is filled with a refractive index Nd2. " Made of glass material of 61·7. By matching the sealant 12 and

"The refractive index of the sub-lens 14 and the A-recorded lens form an extinction angle. The LED wafer 11 emits 78. 5 lumens of white light, and the effective maximum is reduced to m. The effective focal length of the optical lens is 5.091 mm; After the lens 14 is gathered, the angle of 9 〇 is at infinity (in terms of 100 times fs) / 3 = 74.5 lumens (ignoring the effects of refraction and scattering of air); formulas (3), (4), (5) And equation (6) are: ^d2 = J s (^o + rfj + d 2) i—0.3205 1.0857 1.7111 21 M345357

8.1705 94.92% - Conditional formulas (3), (4), and (5) can be satisfied. Figure 11 is a diagram showing the relationship between the light intensity distribution and the illumination angle. From the above table (-), Table (2) and FIG. 11, the aspherical positive-angle light-emitting diode optical lens of the present invention and the light-emitting pole formed thereby can be proved, and the assembly has a simple surface shape. It is easy to manufacture and has a predetermined light pattern, and the intensity of light at each corner is improved, which can enhance the applicability of the creation. <Seventh Embodiment> Referring to FIG. 4 and FIG. 12, which are respectively used in the present invention, a plano-convex type LED is used. The optical lens is shown in the schematic view of the LED module and the light intensity distribution of the seventh embodiment is shown in FIG. The polar coordinate diagram. In the following list (13), the light source side of the LED chip 11, the sealant 12, and the optical lens 14 from the light source side to the image side along the central axis z respectively, the curvature radius R, the distance d of the R2, The maximum angle of the light emitted by the LED wafer is 2 2ω, and the maximum angle 20 of the light pattern of the optical lens 14 is obtained, and each refractive index ^), each thickness (thichkness), and each Abbe number ^ d. Table (14) is the respective coefficients of the surface area (7): 22 M345357 Table (13)

1 Silicone 0.430 1.527 34 2 R1 (7) 2.600 1.530 57 *3 R2 2.975 — 4 Image side ____ *Aspherical surface --^ _ Table (fourteen)

In this embodiment, the sealant U is made of a transparent optical stone with a refractive index of b27 and an Abbe number of (10) of 34; the optical lens 14 has a refractive index of 1.530 and an Abbe number of 2; Made of plastic material. The angle of refraction of the light is formed by matching the refractive index of the encapsulant and the lens 14 with the Abbe number. The LED chip Φ 11 emits blue light with 0 = 12.15 lumens, and the effective maximum angle is 120. The effective focal length of the optical lens 14 has a length fs of 5.091 mm; after passing through the optical lens 14, it is 90. The positive angle is at infinity (in terms of 1〇〇 fs), not =11·74 lumens (ignoring the effects of air refraction and scattering); equations (3), (4), (5), and (6) ) are: (Nd2—x^: 0.2707 fs (^0 + c/j + ) 1.0521 and 2 a 1.7111 23 M345357

β I a = 7.8982 96.90% Can satisfy the conditional formulas (3), (4) and (5) Coordinate relationship (1), the intensity distribution of the table and the illumination angle. The aspherical positive illumination of the creation is ^^2 kg: It can be proved that the two-pole simple surface shape is easy: the light intensity of the ==== degree is -, which can improve the secret of this _. , each corner <eighth embodiment> Please refer to FIG. 4 and FIG. 13 for the schematic diagram of the use of the plano-convex (four) optical lens on the LED component and the polar coordinate relationship of the first embodiment. Figure. In the following table (fifteen), the radius of curvature R, the distance between the light source side optical (four) 丨 and the image side optical surface R2 of the wafer 11, the sealant 12, and the optical lens 14 from the light source side to the image side along the central axis z are respectively listed. d, the maximum angle at which the LED chip u emits light is 2ω, the maximum angle 20 of the light pattern emitted by the optical lens 14, the refractive index (Nd), and the Abbe number yd. Table (16) is the coefficient of the aspherical type (7) of each optical surface: Table (fifteen) 2ω= 130 2ψ= =92 No. Optical surface curvature radius Thickness Nd Vd 0 Light source 0.100 1 Silicone 0.430 1.527 34 2 R1 〇 〇 2.600 1.583 61.7 *3 R2 2.975 4 Image side * aspherical surface - 24 M345357 Table (16) K A4 A6 A8 A10 *R2 4.0000E-01 5.0000E-03 -1.0000E-03 3.0000E-04 -6.3827E- In this embodiment, the sealant 12 is filled with a transparent optical silicone having a refractive index Ndl of 1.527 and an Abbe number udl of 34; the optical lens 14 has a refractive index Nd2 of 1.583 and an Abbe number of 2; d2 is 61.7. Made of glass. The light refraction angle is formed by matching the refractive index of the sealant 12 and the optical lens 14 with the Abbe number. The LED wafer 11 emits a blue light of α = 12·15 lumens, the effective maximum angle is 130°, and the effective focal length of the optical lens 14 has a length fs of 5.091 mm; after being concentrated by the optical lens 14, it is 92. The positive angle is at infinity (in terms of 100 times fs) cold = 11.51 lumens (ignoring the effects of air refraction and scattering); equations (3), (4), (5) and (6) are: -1) Same as = fs 0.2976 (4) + d\ +d2) 1.0521 and 2 Λ == = 1.7112 φ 10.3493 β ! a - 94.70% Coordinate relationship diagram. The formula () ° is the degree / knife cloth and the angle of the lens of the original creation = (a), table (two) and Figure 12, which can be used to prove the state of the spherical positive-angle light-emitting diode optical lens and its composition Luminescence 25 M345357.Product::::: has a simple surface shape, is easy to manufacture and has a predetermined light pattern, the first intensity of each angle - can enhance the application of this creation. w “The aspherical positive-lighting dipole light I lens of this creation and its • The effect of the Na*+^ photo-polar element is that it has a fresh surface shape, and can be used in a large number of processes such as glass, etc. Manufacturing is not easy to deform, • Reduce production costs. Among them, the wire lens can also use a plano-convex aspherical optical lens to simplify the manufacturing process. _ The non-face-to-face illuminating diode optical bias and the other effect of the illuminating diode assembly can make the light source projected from the LED chip have a predetermined light type. Suitable for lighting. • The aspherical positive-illuminated diode optic lens of this creation and its constituent hair-emitting elements are further effective in maintaining a uniform illumination intensity from the light source projected from the LED chip. Therefore, the image surface will not be partially bright or too dark, which will improve the lighting quality. The above is only the present embodiment, and is merely illustrative and non-limiting for the present creation. It will be understood by those skilled in the art that many changes, modifications, and equivalents may be made in the scope of the present invention. 26 M345357 [Simple description of the diagram] Figure 1 is a schematic diagram of the use of led optical lens on the LED assembly; Figure 2 is a schematic diagram of the use of LED optical lens in the LED assembly; Figure 3 is the LED optical lens of the present invention in the LED Figure 4 is a schematic diagram of the use of a plano-convex Lm) optical lens in the LED component of the present invention; Figure 5 is a schematic view of the use of a plano-convex optical lens in the component light path S3 · group, Figure 6 is the creation of this FIG. 7 is a diagram showing the relationship between the light intensity distribution of the LED component of the first embodiment and the polar coordinate of the illumination angle; FIG. 7 is the relationship between the light intensity distribution of the LED component of the second embodiment of the present invention and the polar coordinate of the illumination angle; FIG. 9 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 fourth embodiment of the present invention; FIG. 10 is a fifth embodiment of the present invention. Figure 8 is a diagram showing the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination angle; Figure U is the relationship between the light intensity distribution of the LED component and the polar coordinate of the illumination angle of the sixth embodiment of the present invention; LED assembly embodiment of a light intensity distribution according to the angle of polar diagram; FIG. 13, and the light intensity of LED module system embodiment according to the distribution of the extreme angle of the eighth embodiment of the present Creation 27 M345357 coordinate diagram. [Main component symbol description] 10 : LED component; 11, 21 : LED chip; 12 : sealant; 13 : optical lens; 14 : optical lens; 23 : lens; • R1 : optical side of the light source or its radius of curvature; R2 : image side optical surface or radius of curvature thereof; d0 : LED wafer thickness on the central axis; dl: optical surface distance from the LED wafer surface on the central axis to the optical lens source side; ' d2 : central axis optical lens thickness; . co: LED Half of the maximum angle at which the wafer emits light; Ψ: half of the maximum angle at which the optical lens emits light;

Nd : refractive index; vd : Abbe number; φ a : luminous flux of light emitted from the LED chip; and β: luminous flux of light on the image side with respect to infinity. 28

Claims (1)

M345357 IX. Patent application scope: 1. An aspherical positive-angle illumination LED optical lens, which is used in a light-emitting diode assembly, and arranges one of the light-emitting diode chips from the light source side to the image side along the central axis. An adhesive lens and an optical lens; wherein the optical lens is a lens made of a glass optical material having a concave surface and a convex surface, the concave surface being a light source side optical surface toward the light source, the convex surface being an image orientation The image side optical surface of the side, at least one of the optical surfaces is aspherical; and satisfies the following conditions: 0.7 < and 1 and 2 + i? 2 < 1.0 wherein R is the optical surface of the optical lens The radius of curvature and the center of the heart are the radius of curvature of the optical surface of the optical lens image side. 2. The aspherical positive-angle illumination LED optical lens according to claim 1, wherein the optical lens further satisfies the following condition: ^ <180 8<3·point·Λ =, fS is the optical The length of the effective focal length of the lens, Ri is the radius of rotation of the optical surface of the optical source, and d2 is the thickness of the optical lens on the central axis. The ΓΓΤ spherical positive-angle illuminating diode optical mirror is a medium-sized optical lens system that further satisfies the following conditions: ^, fs is the length of the effective focal length of the optical lens, also the thickness of the lens on the central axis, and Nd2 is the wire mirror The refractive index of μ. The aspherical positive-angle illumination light-emitting diode of the item 4, 2, wherein the optical lens is subjected to the following conditions: light-drying mirror 29