High efficiency reading light optical system
By using a combination of transparent and focusing lenses in the reading lamp and setting a toothed pattern structure, the problem of low light efficiency in reading lamps is solved, achieving efficient light utilization and uniform illumination, while reducing costs.
Patent Information
- Application Number
- CN202520032145.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-07
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2035-01-07
AI Technical Summary
Existing reading lamps have low light efficiency, and some light cannot be effectively utilized, resulting in light loss.
A combination of a transparent lens and a focusing lens is used. The transparent lens has a toothed pattern. The light emitted from the light source is focused by the focusing lens and then shines perpendicularly onto the transparent lens. The light is refracted through the pattern structure, thus achieving efficient use of light.
It improves light utilization, avoids light loss, increases the light irradiation range and improves uniformity, while reducing the mold cost of transparent lenses.
Smart Images
Figure CN223595730U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of light emitting, specifically relates to a high -efficient reading lamp optical system. BACKGROUND
[0002] Please refer to Figure 1 And Figure 2 For the existing reading lamp optical scheme, mainly by shell 100, LED 200, condenser lens 300 and transparent lens (lens) 400 are composed, because the reading lamp needs to light in a particular direction, so the condenser lens is designed to be inclined to place, when the scattered light of LED is shot, the light will be parallel to the inclined direction of condenser lens after passing through the inclined condenser lens, increase its light efficiency in a particular direction. But because the condenser lens is inclined to place, at this moment, part of the light may not reach the condenser lens after the LED is shot, resulting in the light emitted by the LED is wasted (the light in A in the figure is wasted), the available light (the light in B in the figure is available) is reduced, and the luminous efficiency is low. Figure 2 Figure 2
[0003] Therefore, it is necessary to provide a new technical scheme. CONTENT OF UTILITY MODEL
[0004] To solve the technical problems in the prior art, the utility model discloses a kind of high -efficient reading lamp optical system, and specific technical solutions are as follows:
[0005] The utility model provides a kind of high -efficient reading lamp optical system, it includes first lens, at least one light source and at least one second lens,
[0006] The first lens is located above the light source, and each second lens corresponds to a light source.
[0007] The first lens is located above the second lens, and the surface of the first lens is provided with a pattern structure.
[0008] The light emitted by each light source is focused by the corresponding second lens to form parallel light, and the parallel light is perpendicularly irradiated on the first lens and is emitted after being refracted by the pattern structure.
[0009] Further, the first lens is a transparent lens, and the second lens is a focusing lens.
[0010] Further, the central axis of the first lens coincides with the central axis of the light source, and the light emitting surface of the second lens is parallel to the surface of the first lens.
[0011] Further, the pattern structure is a toothed pattern,
[0012] The pattern structure is arranged on the surface of the first lens close to the second lens, or the pattern structure is arranged on the surface of the first lens away from the second lens.
[0013] Further, the second lens has a light inlet groove, and the light inlet groove is arranged on the periphery of the light source.
[0014] Further, the plurality of light sources are arranged in a matrix.
[0015] Further, the light source is a lamp bead.
[0016] Further, the lamp bead is an LED.
[0017] The utility model has the following beneficial effects:
[0018] (1) the high -efficient reading lamp optical system of the utility model, its utilization rate is higher to LED light, avoids the light loss caused due to LED emitting angle reason.
[0019] (2) the high -efficient reading lamp optical system of the utility model, under the effect of static closing light, on one hand, the pattern can play the role of shielding, is used for the shielding of lamp internal parts, on the other hand, the lamp is more beautiful under static effect.
[0020] (3) the high -efficient reading lamp optical system of the utility model, the light irradiation range is more extensive, the luminous range is larger when directly observing, and the uniformity is better.
[0021] (4) the high -efficient reading lamp optical system of the utility model, the pattern is made on the transparent lens, the transparent lens can be used as a standard part, and the pattern on the transparent lens can be changed in different products, which can save the mold cost of the transparent lens, and is conducive to cost reduction.
[0022] Additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without creative labor.
[0024] Figure 1A schematic diagram of a reading light optical scheme in the prior art;
[0025] Figure 2 A schematic diagram of a reading light ray path in the prior art;
[0026] Figure 3 A schematic diagram of the structure of the reading light optical system in the first embodiment of the present application;
[0027] Figure 4 A schematic diagram of the light ray path of Figure 3
[0028] Figure 5 A schematic diagram of the structure of the reading light optical system in the second embodiment of the present application.
[0029] Wherein, 1 - shell, 11 - containing cavity, 2 - first lens, 21 - pattern structure, 3 - light source, 4 - second lens, 41 - light groove, 42 - second lens light exit surface (42). DETAILED DESCRIPTION
[0030] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and should not be understood as limiting the present application.
[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.
[0032] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] Please refer to Figures 3 to 5 , Figure 3 The utility model discloses a reading lamp optical system structure schematic diagram in the first embodiment of the utility model. Figure 4 For Figure 3 The light ray trend schematic diagram of Figure 5 The utility model discloses a reading lamp optical system structure schematic diagram in the second embodiment of the utility model.
[0034] Please refer to Figure 3 And Figure 4 In this embodiment, the high -efficient reading lamp optical system includes first lens 2, at least one light source 3 and at least one second lens 4. The first lens 2 is transparent lens, and the second lens 4 is focusing lens. At least one light source 3 is installed on the PCB board. The PCB board is fixed in the shell. In this embodiment, the light source 3 is LED. In other embodiments, the light source can be other lamp beads. In an embodiment, when the light source is multiple, the multiple light sources are arranged in matrix.
[0035] The high -efficient reading lamp optical system still includes the shell 1, and the shell 1 has accommodating cavity 11 and opening. The light source 3 and second lens 4 are located in accommodating cavity 11, and the first lens 2 is located above the light source 3, and each second lens 4 corresponds one light source 3.
[0036] The first lens 2 cover is set on the opening, and the surface of the first lens 2 is provided with the pattern structure. In this embodiment, the pattern structure 21 is dentate pattern, and the pattern structure 21 is arranged on the surface of the first lens 2 close to the second lens 4. As Figure 5 Indicated, in this embodiment, the pattern structure 22 is arranged on the surface of the first lens 2 away from the second lens 4. It should be noted that, in the utility model, the angle of the pattern on the first lens 2 is not limited, and the angle can be adjusted according to the actual irradiation direction, so that the light irradiation is realized in the specific direction.
[0037] Further, the central axis of the first lens 2 coincides with the central axis of the light source 3. The light exit surface 42 of the second lens is parallel to the surface of the first lens 1. By vertically arranging the second lens 4 above the light source 3, the light exit surface of the second lens 4 is parallel to the surface of the first lens, the second lens 4 converts the divergent light of the light source 3 into parallel vertical light and vertically irradiates on the first lens 2, and the originally vertical light is refracted by the dentate structure on the first lens 2 and exits to a specific direction, so that the effect that the light reaches the specific direction is realized, the available light of the specific direction is increased (C represents the available light in the figure), the light utilization is improved, and the light loss caused by the fact that the LED light cannot reach the condenser lens is avoided. Figure 4
[0038] Further, the second lens 4 has an entrance groove 41, which is covered on the periphery of the light source 3, and the light emitted by each light source 3 is totally incident into the corresponding entrance groove 41 of the second lens.
[0039] The utility model discloses a light -converging lens is placed vertically, and the dentate pattern has been added on transparent lens to this combination system to promote light efficiency.
[0040] The light emitted by the LED reaches the light -converging lens position, and the divergent light is converted into parallel vertical light through the light -converging lens, and the originally vertical light is refracted through the dentate pattern on the transparent lens, so that the effect of light hitting a specific direction is realized.
[0041] The angle of the dentate pattern of the transparent lens is not limited in the utility model, and can be adjusted according to the actual irradiation direction, so that the light is irradiated to a specific direction, the utilization rate of light in the whole system is high, and the light loss caused by the fact that the LED light cannot reach the light -converging lens is avoided.
[0042] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine different embodiments or examples described in the present specification.
[0043] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary, and cannot be understood as limiting the utility model, and the person skilled in the art can change, modify and modify the above-mentioned embodiments within the scope of the utility model.
Claims
1. A high-efficiency reading light optical system, characterized in that, It includes a first lens (2), at least one light source (3), and at least one second lens (4). The second lens (4) is located above the light source (3), and each second lens (4) corresponds to one light source. The first lens (2) is located above the second lens (4), and the surface of the first lens (2) is provided with a patterned structure. The light emitted from each light source is focused by the corresponding second lens to form parallel light, which then shines perpendicularly into the first lens and is refracted through the patterned structure before being emitted.
2. The high-efficiency reading light optical system according to claim 1, characterized in that, The first lens (2) is a transparent lens, and the second lens (4) is a focusing lens.
3. The high-efficiency reading light optical system according to claim 2, characterized in that, The central axis of the first lens (2) coincides with the central axis of the light source (3), and the light-emitting surface (42) of the second lens is parallel to the surface of the first lens (2).
4. The high-efficiency reading light optical system according to claim 1, characterized in that, The pattern structure is a toothed pattern. The pattern structure is disposed on the surface of the first lens near the second lens, or the pattern structure is disposed on the surface of the first lens away from the second lens.
5. The high-efficiency reading light optical system according to claim 1, characterized in that, The second lens (4) has an entrance groove (41), which is located around the light source (3). All the light emitted from each light source is incident into the entrance groove of the corresponding second lens.
6. The high-efficiency reading light optical system according to claim 1, characterized in that, Multiple light sources (3) are arranged in a matrix.
7. The high-efficiency reading light optical system according to claim 1, characterized in that, The light source (3) is an LED bead.
8. The high-efficiency reading light optical system according to claim 7, characterized in that, The lamp beads are LEDs.
9. The high-efficiency reading light optical system according to claim 1, characterized in that, It also includes a housing (1) having a receiving cavity (11) and an opening, wherein the light source (3) and the second lens (4) are both located in the receiving cavity (11), and the first lens (2) is disposed on the opening.