Optical assembly with high light intensity

Abstract

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Description

BACKGROUND OF THE INVENTION 1. FIELD OF THE INVENTION Thepresentinventionrelatestoanoptical assembly,and more specifically, to an optical assembly with high light intensity. 2. DESCRIPTION OF THE PRIOR ART A lamp is usually provided with an optical assembly for gathering light to enhance light intensity, so as to ensure that human visual ability remains normal and unaffected within a light emitting range of the lamp. However, a conventional optical assembly oftennarrowsthelightemittingrange while enhancing the light intensity. Hence, improving an optical assembly to balance both the light intensity and the light emitting range is urgently needed. SUMMARY OF THE INVENTION It is an objective of the present invention to provide an optical assembly with high light intensity, or at least to provide the public with a useful choice. In order to achieve the aforementioned objective, the present invention discloses an optical assembly. The optical assembly includes a substrate, at least one light reflecting component, at least one total internal reflecting component and at least one light emitting component. The at least one light reflecting component is disposed on the substrate. The at least one light reflecting component includes a proximal end adjacent to the substrate and a distal end away from the substrate. The at least one total internal reflecting component is disposed on the substrate. The at least one light 2026200322   16 Jan 2026 emitting component is disposed on the substrate and located between the proximal end of the at least one light reflecting component and the at least one total internal reflecting component along a first direction. The at least one light emitting component includes a light emitting surface. A normal direction of the light emitting surface is parallel to a second direction, and the second direction is perpendicular to the first direction. According to an embodiment of the present invention, at least one light entrance structure is formed on a proximal side of the at least one total internal reflecting component adjacent to the at least one light emitting component. According to an embodiment of the present invention, the at least one light entrance structure is a recess structure. According to an embodiment of the present invention, the at least one light entrance structure includes a first light entrance portion and a second light entrance portion. The at least one light emitting component is located between the first light entrance portion and the proximal end of the at least one light reflecting component along the first direction. The second light entrance portion is located between the at least one light emitting component and the distal end of the at least one light reflecting component along the second direction, and the second light entrance portion partially shields the light emitting surface of the at least one light emitting component. According to an embodiment of the present invention, a part of the light emitting surface of the at least one light emitting component shielded by the second light entrance portion is smaller than or equal to a part of the light emitting 2026200322   16 Jan 2026 surface of the at least one light emitting component not shielded by the second light entrance portion. According to an embodiment of the present invention, at least one light exit structure is formed on a distal side of the at least one total internal reflecting component away from the at least one light emitting component. According to an embodiment of the present invention, the at least one light exit structure includes a light exit convex portion and a light exit planar portion. The light exit planar portion is located between the light exit convex portion and the distal end of the light reflecting component along the second direction, and the light exit planar portion and the light emitting surface of the at least one light emitting component are not parallel to each other. According to an embodiment of the present invention, the at least one light reflecting component has a parabolic cross section. An optical axis of the at least one light reflecting component is parallel to the first direction. The at least one light emitting component is adjacent to a focal point of the at least one light reflecting component. A distance between the proximal end and the focal point of the at least one light reflecting component along the first direction is a focal length of the at least one light reflecting component. According to an embodiment of the present invention, a ratio of the focal length of the at least one light reflecting component to a farthest distance between the focal point of the at least one light reflecting component and the at least one light exit structure along the first direction is 1:1 or 3:1, or between 1:1 and 3:1. 2026200322   16 Jan 2026 According to an embodiment of the present invention, at least one reflecting structure is further formed on the at least one total internal reflecting component. The at least one reflecting structure is located between the at least one light entrance structure and the at least one light exit structure along the first direction, and the at least one reflecting structure is configured to reflect light from the at least one light entrance structure to the at least one light exit structure. According to an embodiment of the present invention, a ratio of a distance between the distal end of the at least onelightreflectingcomponentandthelight emittingsurface of the at least one light emitting component along the second direction to a farthest distance between a junction of the at least one reflecting structure and the at least one light exit structure and the light emitting surface of the at least one light emitting component along the second direction is equal to 2:1 or 7:1, or between 2:1 and 7:1. According to an embodiment of the present invention, the at least one light reflecting component has a parabolic cross section. An optical axis of the at least one light reflecting component is parallel to the first direction. The at least one light emitting component is adjacent to a focal point of the at least one light reflecting component. A distance between the proximal end and the focal point of the at least one light reflecting component along the first direction is a focal length of the at least one light reflecting component. According to an embodiment of the present invention, a ratio of the focal length of the at least one light reflecting component to a distance between the distal end of the at least onelightreflectingcomponentandthelight emittingsurface 2026200322   16 Jan 2026 of the at least one light emitting component along the second direction is equal to 1:2 or 1:4, or between 1:2 and 1:4. In summary, in the present invention, a part of light emitted from the light emitting surface of the light emitting component can be guided via the light reflecting component, and another part of the light emitted from the light emitting surface of the light emitting component can be guided via the total internal reflecting component. Such optical design not only effectively enhances the light intensity but also expands the light emitting range. Therefore, the optical assembly of the present invention has a significant advantage in balancing both the light intensity and the light emitting range. In addition, the configuration that the light emitting component is located between the proximal end of the light reflecting component and the total internal reflecting component along the first direction and the normal direction of the light emitting surface is parallel to the second direction can increase internal space utilization of a lamp with lateral or radial light emission, thereby making the design of the lamp more flexible, e.g., flatter, to meet different usage requirements. These and other objectives of the present invention will no doubt become obvious to those of ordinary skill in the art after reading the following detailed description of the preferred embodiment that is illustrated in the various figures and drawings. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a partial diagram of an optical assembly according to a first embodiment of the present invention. FIG. 2 is an exploded diagram of the optical assembly according to the first embodiment of the present invention. 2026200322   16 Jan 2026 FIG. 3 is an enlarged diagram of an A portion of the optical assembly shown in FIG. 2 according to the first embodiment of the present invention. FIG. 4 is an enlarged diagram of a B portion of the optical assembly shown in FIG. 2 according to the first embodiment of the present invention. FIG. 5 is a partial sectional diagram of the optical assembly according to the first embodiment of the present invention. FIG. 6 is a diagram illustrating light paths of the optical assembly according to the first embodiment of the present invention. FIG. 7 is a diagram of a total internal reflecting component according to a second embodiment of the present invention. FIG. 8 is a diagram of a total internal reflecting component according to a third embodiment of the present invention. FIG. 9 is a diagram of a total internal reflecting component according to a fourth embodiment of the present invention. FIG. 10 is a diagram of a total internal reflecting component according to a fifth embodiment of the present invention. DETAILED DESCRIPTION In the following detailed description of the preferred embodiments, reference is made to the accompanying drawings which form a part hereof, and in which is shown by way of illustration specific embodiments in which the invention may be practiced. In this regard, directional terminology, such as “top”, “bottom”, “left”, “right”, “front”, “back”, etc., is used with reference to the orientation of the Figure(s) being described. The components of the present invention can be 2026200322   16 Jan 2026 positioned in a number of different orientations. As such, the directional terminology is used for purposes of illustration and is in no way limiting. Accordingly, the drawings and descriptions will be regarded as illustrative in nature and not as restrictive. Also, if not specified, the term “connect” is intended to mean either an indirect or direct electrical / mechanical connection. Thus, if a first device is coupled to a second device, that connection may be through a direct electrical / mechanical connection, or through an indirect electrical / mechanical connection via other devices and connections. Please refer to FIG. 1 and FIG. 6. FIG. 1 is a partial diagram of an optical assembly 1 according to a first embodiment of the present invention. FIG. 2 is an exploded diagram of the optical assembly 1 according to the first embodiment of the present invention. FIG. 3 is an enlarged diagram of an A portion of the optical assembly 1 shown in FIG. 2 according to the first embodiment of the present invention. FIG. 4 is an enlarged diagram of a B portion of the optical assembly 1 shown in FIG. 2 according to the first embodiment of the present invention. FIG. 5 is a partial sectional diagram of the optical assembly 1 according to the first embodiment of the present invention. FIG. 6 is a diagram illustrating light paths of the optical assembly 1 according to the first embodiment of the present invention. As shown in FIG. 1 and FIG. 2, the optical assembly 1 includes a substrate 11, a plurality of light reflecting components 12, a plurality of total internal reflecting components 13 and a plurality of light emitting components 14. The plurality of light reflecting components 12, the plurality of total internal reflecting components 13 and the plurality of light emitting components 14 are all disposed on the substrate 11. In this embodiment, the optical assembly 1 can be applied to 2026200322   16 Jan 2026 a warning lamp capable of emitting light in 360 degrees, e.g., in all directions. The substrate 11 can be a circular circuit substrate. The light emitting component 14 can be a light emitting diode. The total internal reflecting component 13 can be made of light-transmissive plastic or glass material. The light reflecting component 12 can be a metal component or a component with a metal reflective coating. The plurality of light reflecting components 12 are arranged in a ring shape around a center of the substrate 11, and the adjacent two light reflecting components 12 can be connected to each other, such that the plurality of light reflecting components 12 jointly form a one-piece light reflecting structure, e.g., an integrally formed light reflecting structure. The plurality of total internal reflecting components 13 are symmetrically arranged in a ring shape around the center of the substrate 11 and are spaced at equal intervals, and each of the total internal reflecting components 13 is aligned with the corresponding light reflecting component 12 along a radial direction of the substrate 11 passing through the center of the substrate 11. The plurality of light emitting components 14 are symmetrically arranged at equal intervals relative to the center of the substrate 11, and each of the light emitting components 14 is aligned with the corresponding total internal reflecting component 13 along the radial direction of the substrate 11. The optical assembly 1 further includes a plurality of bridging ribs 15. Each of the bridging ribs 15 is connected between the adjacent two total internal reflecting components 13, such that the plurality of total internal reflecting components 13 and the plurality of bridging ribs 15 jointly form a one-piece total internal reflecting structure, e.g., an integrally formed total internal reflecting structure. However, the present invention is not limited to this embodiment. For example, in another 2026200322   16 Jan 2026 embodiment, the adjacent two light reflecting components and / or the adjacent two total internal reflecting components can be separated from each other. Alternatively, in another embodiment, the optical assembly can be applied to a single-sided lamp and only include one light reflecting component, one total internal reflecting component and one light emitting component, and the light reflecting component, the total internal reflecting component and the light emitting component can be arranged along a same straight line. Since the optical assembly 1 has axial symmetry, and component groups defined by the corresponding light reflecting components 12, the corresponding total internal reflecting components 13 and the corresponding light emitting components 14 located at different azimuth angles have the same structural configuration, a detailed description for one of the component groups is provided as follows. As shown in FIG. 2 to FIG. 6, the light reflecting component 12 includes a proximal end 121 adjacent to the substrate 11 and a distal end 122 away from the substrate 11. The proximal end 121 of the light reflecting component 12 can be configured not to directly contact the substrate 11. For example, the light reflecting component 12 can be mounted on the substrate 11 by an elevated bracket or a supporting base. The light emitting component 14 is located between the proximal end 121 of the light reflecting component 12 and the total internal reflecting component 13 along a first direction D1. The light emitting component 14 includes a light emitting surface 141. A normal direction ND of the light emitting surface 141 is parallel to a second direction D2. The second direction D2 is perpendicular to the first direction D1. For example, the first direction D1 can be a radial direction, or a lateral direction of the optical assembly 1, and the second direction D2 can be an axial direction of the optical assembly 1. A part 2026200322   16 Jan 2026 of light emitted from the light emitting surface 141 of the light emitting component 14 can be guided via the light reflecting component 12, and another part of the light emitted from the light emitting surface 141 of the light emitting component 14 can be guided via the total internal reflecting component 13, so as to achieve the purpose of lateral or / and radial light emission. It should be noticed that the configuration that the light emitting component 14 is located between the proximal end 121 of the light reflecting component 12 and the total internal reflecting component 13 along the first direction D1 and the normal direction ND of the light emitting surface 141 is parallel to the second direction D2 can increase internal space utilization of a lamp with lateral or radial light emission, thereby making the design of the lamp more flexible, e.g., flatter, to meet different usage requirements. Inthis embodiment,thelightreflectingcomponent12has a parabolic cross section, and an inner surface of the light reflecting component 12 can be a scaled surface. An optical axis of the light reflecting component 12 can be parallel to the first direction D1 and perpendicular to the second direction D2. The light emitting component 14 can be located adjacent to a focal point of the light reflecting component 12. For example, a center of the light emitting component 14 can coincide with the focal point of the light reflecting component 12, and a distance between the proximal end 121 and the focal point of the light reflecting component 12 along the first direction D1 can be a focal length F of the light reflecting component 12. However, the present invention is not limited to this embodiment. For example, in another embodiment, the inner surface of the light reflecting component can be a smooth inclined surface. 2026200322   16 Jan 2026 Furthermore, the total internal reflecting component 13 includes a light entrance structure 131, a light exit structure 132 and a reflecting structure 133. The light entrance structure 131 is formed on a proximal side of the total internal reflecting component 13 adjacent to the light emitting component 14. The light exit structure 132 is formed on a distal side of the total internal reflecting component 13 away from the light emitting component 14. The reflecting structure133is locatedbetweenthe lightentrancestructure 131 and the light exit structure 132 along the first direction D1 and configured to reflect light from the light entrance structure 131 to the light exit structure 132. In other words, a part of light emitted from the light emitting surface 141 of the light emitting component 14 can enter the total internal reflecting component 13 via the light entrance structure 131 of the total internal reflecting component 13, and the reflecting structure 133 can reflect the light from the light entrance structure 131 to the light exit structure 132, and then the light can exit the total internal reflecting component 13 via the light exit structure 132. In this embodiment, a refractive index of material of the total internal reflecting component 13 can be greater than a refractive index of medium outside the total internal reflecting component 13, e.g., air. However, the present invention is not limited to this embodiment. For example, in another embodiment, the reflecting structure of the total internal reflecting component can be provided with a reflective layer, e.g., a metal reflective layer, for reflecting light, and in this case, the refractive index of the material of the total internal reflecting component can be not greater than the refractive index of the medium outside the total internal reflecting component. 2026200322   16 Jan 2026 Specifically, as shown in FIG. 3 and FIG. 5, the light entrance structure 131 is a recess structure and includes a first light entrance portion 1311 and a second light entrance portion 1312. The light emitting component 14 is located between the first light entrance portion 1311 and the proximal end 121 of the light reflecting component 12 along the first direction D1. The second light entrance portion 1312 is located between the light emitting component 14 and the distal end 122 of the light reflecting component 12 along the second directionD2and partially shieldsthelight emittingsurface 141 of the light emitting component 14. In addition, as shown in FIG. 4 and FIG. 5, the light exit structure 132 includes a light exit convex portion 1321 and a light exit planar portion 1322. The light exit planar portion 1322 is located between the light exit convex portion 1321 and the distal end 122 of the light reflecting component 12 along the second direction D2. The light exit planar portion 1322 and the light emitting surface 141 of the light emitting component 14 are not parallel to each other. Preferably, as shown in FIG. 5, in order to achieve a better balance between light intensity and light emitting range, a part of the light emitting surface 141 of the light emitting component 14 shielded by the second light entrance portion 1312 is smaller than or equal to a part of the light emitting surface 141 of the light emitting component 14 not shielded by the second light entrance portion 1312, i.e., an area of the light emitting surface 141 shielded by the second light entrance portion 1312 does not exceed half of a total area of the lightemittingsurface141.A ratioof the focallength F of the light reflecting component 12 to a farthest distance L1 between the focal point of the light reflecting component 12 and the light exit structure 132 along the first direction 2026200322   16 Jan 2026 D1 can be 1:1 or 3:1, or can be between 1:1 and 3:1. A ratio of a distance L2 between the distal end 122 of the light reflecting component 12 and the light emitting surface 141 of the light emitting component 14 along the second direction D2 to a farthest distance L3 between a junction of the reflecting structure 133 and the light exit structure 132 and the light emitting surface 141 of the light emitting component 14 along the second direction D2 can be equal to 2:1 or 7:1, or can be between 2:1 and 7:1. A ratio of the focal length F of the light reflecting component 12 to the distance L2 between the distal end 122 of the light reflecting component 12 and the light emitting surface 141 of the light emitting component 14 along the second direction D2 can be equal to 1:2 or 1:4, or can be between 1:2 and 1:4. Understandably, the numbers of the light entrance structure, the light exit structure and the reflecting structure of the total internal reflecting component of the present invention are not limited to this embodiment. It depends on practical demands. For example, in another embodiment, the total internal reflecting component can include apluralityoflightentrancestructures,aplurality of light exit structures and a plurality of reflecting structures, wherein the plurality of light entrance structures can be respectively configured to partially shield light emitting surfaces of a plurality of light emitting components, and the plurality of reflecting structures can be respectively configured to reflect light from the plurality of light entrance structures to the plurality of light exit structures. Understandably, the structures of the light entrance structure and the light exit structure of the total internal reflectingcomponentofthe present invention arenotlimited 2026200322   16 Jan 2026 to the aforementioned embodiment. For example, please refer to FIG. 7 to FIG. 10. FIG. 7 is a diagram of a total internal reflecting component 13’ according to a second embodiment of the present invention.FIG. 8isadiagramof atotal internal reflecting component 13’’ according to a third embodiment of the present invention.FIG. 9isadiagramof atotal internal reflecting component 13’’’ according to a fourth embodiment of the present invention. FIG. 10 is a diagram of a total internal reflecting component 13’’’’ according to a fifth embodiment of the present invention. In the second embodiment as shown in FIG. 7, a light exit structure 132’ of the total internal reflecting component 13’ can have a texture equivalent to a wave lens. In the third embodiment as shown in FIG. 8, a light exit structure 132’’ of the total internal reflecting component 13’’ can have a texture equivalent to a Fresnel lens. In the fourth embodiment as shown in FIG. 9, a light exit structure 132’’’ of the total internal reflecting component 13’’’ can have a texture equivalent to a planar lens, i.e., the light exit structure 132’’’ only has a light exit planar portion. In the fifth embodiment as shown in FIG. 10, a light entrance structure 131’’’’ of the total internal reflecting component 13’’’’ can have a texture equivalent to a wave lens. Understandably, insome embodiments,structuraldesignsofthe lightentrance structure and the light exit structure of the total internal reflecting component can be different from the ones of the aforementioned embodiments, so as to meet practical design requirements of optical paths. In contrast to the prior art, in the present invention, a part of light emitted from the light emitting surface of the light emitting component can be guided via the light reflecting component, and another part of the light emitted from the light emitting surface of the light emitting 2026200322   16 Jan 2026 component can be guided via the total internal reflecting component. Such optical design not only effectively enhances the light intensity but also expands the light emitting range. Therefore, the optical assembly of the present invention has asignificantadvantagein balancing boththe lightintensity and the light emitting range. In addition, the configuration that the light emitting component is located between the proximal end of the light reflecting component and the total internal reflecting component along the first direction and the normal direction of the light emitting surface is parallel to the second direction can increase internal space utilization of a lamp with lateral or radial light emission, thereby making the design of the lamp more flexible, e.g., flatter, to meet different usage requirements. The foregoing outlines the features of several embodiments, enabling those skilled in the art to fully appreciate the aspects of the present disclosure. Those skilled in the art should recognize that the present disclosure provides a foundation for designing or modifying other processes and structures to achieve substantially the samefunctionsand / orsubstantiallythesameresultsas those of the embodiments introduced herein. Furthermore, such equivalent arrangements do not deviate from the spirit and scope of the present disclosure, and various changes, substitutions, and alterations may be made without so departing.

Claims

1. An optical assembly comprising:a substrate;at least one light reflecting component disposed on the substrate, the at least one light reflecting component comprising a proximal end adjacent to the substrate and a distal end away from the substrate;at least one total internal reflecting component disposed on the substrate; andat least one light emitting component disposed on the substrate andlocatedbetweenthe proximal endof the at least one light reflecting component and the at least one total internal reflecting component along a first direction, the at least one light emitting component comprising a light emitting surface, a normal direction of the light emitting surface being parallel to a second direction, and the second direction being perpendicular to the first direction.

2. The optical assembly of claim 1, wherein at least one light entrance structure is formed on a proximal side of the at least one total internal reflecting component adjacent to the at least one light emitting component.

3. The optical assembly of claim 2, wherein the at least one light entrance structure is a recess structure.

4. The optical assembly of claim 3, wherein the at least one light entrance structure comprises a first light entrance portion and a second light entrance portion, the at least onelight emittingcomponentislocatedbetweenthe first light entrance portion and the proximal end of the at least one light reflecting component along the first direction,2026200322   16 Jan 2026the second light entrance portion is located between the at least one light emitting component and the distal end of the at least one light reflecting component along the second direction, and the second light entrance portion partially shields the light emitting surface of the at least one light emitting component.

5. The optical assembly of claim 4, wherein a part of the light emitting surface of the at least one light emitting component shielded by the second light entrance portion is smaller than or equal to a part of the light emitting surface of the at least one light emitting component not shielded by the second light entrance portion.

6. The optical assembly of any of claims 2 to 5, wherein at least one light exit structure is formed on a distal side of the at least one total internal reflecting component away from the at least one light emitting component.

7. The optical assembly of claim 6, wherein the at least one light exit structure comprises a light exit convex portion and a light exit planar portion, the light exit planar portion is located between the light exit convex portion and the distal end of the light reflecting component along the second direction, and the light exit planar portion and the light emitting surface of the at least one light emitting component are not parallel to each other.

8. The optical assembly of claim 6, wherein the at least one light reflecting component has a parabolic cross section, an optical axis of the at least one light reflecting component is parallel to the first direction, the at least one light emitting component is adjacent to a focal point of the at least one light reflecting component, a distance2026200322   16 Jan 2026between the proximal end and the focal point of the at least one light reflecting component along the first direction is a focal length of the at least one light reflecting component.

9. The optical assembly of claim 8, wherein a ratio of the focal length of the at least one light reflecting component to a farthest distance between the focal point of the at least one light reflecting component and the at least one light exit structure along the first direction is 1:1 or 3:1, or between 1:1 and 3:1.

10. The optical assembly of claim 6, wherein at least one reflecting structure is further formed on the at least onetotalinternalreflectingcomponent,the atleastone reflecting structure is located between the at least one light entrance structure and the at least one light exit structure along the first direction, and the at least one reflecting structure is configured to reflect light from the at least one light entrance structure to the at least one light exit structure.11 The optical assembly of claim 10, wherein a ratio of a distance between the distal end of the at least one light reflecting component and the light emitting surface of the at least one light emitting component along the second direction to a farthest distance between a junction of the at least one reflecting structure and the at least one light exit structure and the light emitting surface of the at least one light emitting component along the second direction is equal to 2:1 or 7:1, or between 2:1 and 7:1.12 The optical assembly of claim 1, wherein the at least one2026200322   16 Jan 2026light reflecting component has a parabolic cross section, an optical axis of the at least one light reflecting component is parallel to the first direction, the at least one light emitting component is adjacent to a focal point of the at least one light reflecting component, a distance between the proximal end and the focal point of the at least one light reflecting component along the first direction is a focal length of the at least one light reflecting component.

13. The optical assembly of claim 12, wherein a ratio of the focal length of the at least one light reflecting component to a distance between the distal end of the at least one light reflecting component and the light emitting surface of the at least one light emitting component along the second direction is equal to 1:2 or 1:4, or between 1:2 and 1:4.

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