CN217540626U - Blackboard lamp lens and corresponding blackboard lamp - Google Patents
Blackboard lamp lens and corresponding blackboard lamp Download PDFInfo
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- CN217540626U CN217540626U CN202221815629.8U CN202221815629U CN217540626U CN 217540626 U CN217540626 U CN 217540626U CN 202221815629 U CN202221815629 U CN 202221815629U CN 217540626 U CN217540626 U CN 217540626U
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Abstract
The utility model provides a blackboard lamp lens, this blackboard lamp lens are applied to in a blackboard lamp. The blackboard lamp lens comprises a transparent lens body, and the lens body comprises a light inlet part and a light outlet part. The light inlet part is positioned at one end of the lens body, the first reflecting surface is positioned at the upper end of the light inlet part, the second reflecting surface is positioned at the lower end of the light inlet part, and the first reflecting surface and the second reflecting surface can reflect light rays in the lens body. The incident groove is arranged between the first reflecting surface and the second reflecting surface and used for incident light. The light-emitting part is positioned at the other end of the lens body and is connected with the light-entering part, and the light-emitting part can transmit light rays. The first light-emitting surface is positioned in the middle of one side of the light-emitting part, the second light-emitting surface is positioned at the lower end of the first light-emitting surface, and the third light-emitting surface is positioned at the upper end of the first light-emitting surface. The first light-emitting surface is a plane, and the second light-emitting surface and the third light-emitting surface are arc surfaces. The arc is a concave arc sunken in the light emergent part, and the curvature of the third light emergent surface is greater than that of the second light emergent surface.
Description
Technical Field
The utility model relates to the field of lamps and lanterns, in particular to blackboard lamp lens.
Background
In modern society, lighting in a classroom can affect the learning efficiency and visual health of students. The professional blackboard illuminating lamp can improve glare of students and protect eyesight of the students, and a blackboard lamp lens is arranged in the blackboard illuminating lamp. However, the conventional blackboard lamp lens has the technical problem of high manufacturing cost.
Therefore, it is desirable to provide a blackboard lamp lens and a corresponding blackboard lamp to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a blackboard lamp lens and blackboard lamp that corresponds has effectively solved the higher technical problem of cost of manufacture of current blackboard lamp lens.
The utility model provides a blackboard lamp lens, it includes:
a lens body, which is a transparent structure, comprising:
the light inlet part is positioned at one end of the lens body and comprises:
the first reflecting surface is positioned at the upper end of the light inlet part and used for reflecting light rays in the lens body;
the second reflecting surface is positioned at the lower end of the light inlet part and used for reflecting light rays in the lens body;
the incident groove is arranged between the first reflecting surface and the second reflecting surface and is used for incident light;
the other end that goes out the light portion is located the lens body, with it connects to advance the light portion for transmit out light, it includes first play plain noodles, second play plain noodles and third play plain noodles to go out the light portion, first play plain noodles is located the middle part of light portion one side, the second goes out the plain noodles and is located the lower extreme on first play plain noodles, the third goes out the plain noodles and is located the upper end on first play plain noodles, first play plain noodles is the plane, the second go out the plain noodles with the third go out the plain noodles be the arcwall face, the arc be for cave in go out the concave arc of light portion, the camber on the third goes out the plain noodles is greater than the camber on the second goes out the plain noodles for make the blackboard lamp shine more even the light on the blackboard, can save material simultaneously, reduce the cost of manufacture of blackboard lamp lens.
Furthermore, the light emitting part comprises a plurality of convex lenses, and the convex lenses are arranged on the first light emitting surface, the second light emitting surface and the third light emitting surface in an array distribution mode and used for enabling the lens of the blackboard lamp to be more uniform in light transmission.
Furthermore, the incident groove includes a first incident surface, a second incident surface and a third incident surface, the first incident surface and the second incident surface are respectively located at the inner sides of the side walls at the two sides of the incident groove, the first incident surface is close to the first reflecting surface relative to the second reflecting surface, the second incident surface is close to the second reflecting surface relative to the first reflecting surface, and the third incident surface is disposed on the bottom surface of the incident groove and is used for increasing the incident area of the lamp light.
Furthermore, the third incident surface is an arc surface, and the arc is a convex arc protruding out of the bottom of the incident groove and used for increasing the intensity of the incident groove.
Further, the light inlet portion further includes a fourth incident surface and a fifth incident surface, the fourth incident surface and the fifth incident surface are both located outside the incident groove, the fourth incident surface is located between the first reflection surface and the first incident surface, and the fifth incident surface is located between the second reflection surface and the second incident surface, so as to increase the incident area of the lamp light and increase the intensity of the lens body.
Furthermore, the first reflecting surface and the second reflecting surface are arc-shaped surfaces, the arc is a convex arc protruding out of the light inlet part, the curvature of the second reflecting surface is larger than that of the first reflecting surface, so that a better polarization effect is achieved, and light transmitted by the blackboard lamp lens is more uniform to the blackboard.
Furthermore, the lens body still includes two archs, two the arch connect respectively in the both sides of light-emitting portion, the arch is used for cooperating the draw-in groove to fix the lens body.
Furthermore, the protrusion and the lens body are integrally formed, and the lens body and the protrusion are stably connected.
Further, the length of the lens body is 250mm to 350mm for reducing the number of lenses so that a user can assemble the lenses conveniently.
A blackboard lamp comprises any blackboard lamp lens.
The utility model discloses compare in prior art, its beneficial effect is: the utility model provides a blackboard lamp lens, this blackboard lamp lens accessible light incident portion's incident groove incident ray. The light inside the blackboard lamp is reflected through the first reflecting surface and the second reflecting surface, and the blackboard lamp lens can transmit the light through the light-emitting part. The blackboard lamp lens can enable light rays irradiated on a blackboard to be more uniform, and therefore the blackboard lamp lens can be used for preventing a user from being dazzled. The light emitting part comprises a first light emitting surface, a second light emitting surface and a third light emitting surface. The first light-emitting surface is a plane, and the second light-emitting surface and the third light-emitting surface are both arc-shaped surfaces. The arc is a concave arc sunken in the light emergent part, and the curvature of the third light emergent surface is greater than that of the second light emergent surface. Compared with the design that the light-emitting surface is a plane, the light-emitting surface of the arc-shaped surface can save materials required for manufacturing the lens, so that a user can effectively reduce the manufacturing cost of the blackboard lamp lens. Effectively solved current blackboard lamp lens and had the higher technical problem of cost of manufacture. In addition, the user can also optimize the manufacturing time of the blackboard lamp lens, and then the user can improve the production efficiency of the blackboard lamp lens.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments are briefly introduced below, and the drawings in the following description are only corresponding drawings of some embodiments of the present invention.
Fig. 1 is a front view of an embodiment of the blackboard lamp lens of the present invention.
Fig. 2 is a right side view of an embodiment of the blackboard lamp lens of the present invention.
Fig. 3 is a rear view of an embodiment of the blackboard lamp lens of the present invention.
Fig. 4 is an enlarged view of fig. 3 at a.
In the figure, 10, a lens body; 11. a light inlet part; 111. a first reflective surface; 112. a second reflective surface; 113. an incident groove; 1131. a first incident surface; 1132. a second incident surface; 1133. a third incident surface; 114. a fourth incident surface; 115. a fifth incidence plane; 12. a light-emitting part; 121. a first light emitting surface; 122. a second light emitting surface; 123. a third light emitting surface; 124. a convex lens; 13. and (4) protruding.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by the skilled in the art without creative work belong to the protection scope of the present invention.
In the present invention, the directional terms, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", "top" and "bottom", refer to the orientation of the drawings, and the directional terms are used for illustration and understanding, but not for limiting the present invention.
The terms "first," "second," and the like in the terms of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, nor should they be construed as limiting in any way.
Referring to fig. 1 to 3, fig. 1 is a front view of an embodiment of a blackboard lamp lens of the present invention;
FIG. 2 is a right side view of an embodiment of the blackboard lamp lens of the present invention; fig. 3 is a rear view of an embodiment of the blackboard lamp lens of the present invention.
In the drawings, elements having similar structures are denoted by the same reference numerals.
Please refer to fig. 1 and fig. 2, the utility model provides a blackboard lamp lens, this blackboard lamp lens is applied to in a blackboard lamp. The blackboard lamp lens comprises a lens body 10, wherein the lens body 10 is of a transparent structure, and the lens body 10 comprises a light inlet part 11 and a light outlet part 12. The light inlet part 11 is located at one end of the lens body 10, and the light inlet part 11 includes a first reflection surface 111, a second reflection surface 112 and an incident groove 113. The first reflective surface 111 is located at the upper end of the light inlet portion 11, the second reflective surface 112 is located at the lower end of the light inlet portion 11, and both the first reflective surface 111 and the second reflective surface 112 can be used for reflecting light rays inside the lens body 10.
Referring to fig. 1 to 3, the first reflective surface 111 and the second reflective surface 112 are both arc-shaped surfaces, and the arc shape is a convex arc protruding from the light inlet portion 11. The curvature of the second reflective surface 112 is greater than that of the first reflective surface 111, so that the first and second reflective surfaces 111 and 112 adopt an asymmetric design. Therefore, the first reflecting surface 111 and the second reflecting surface 112 can achieve better polarization effect, and the light transmitted by the blackboard lamp lens is more uniformly irradiated on the blackboard.
Referring to fig. 1 and 2, the incident groove 113 is disposed between the first reflective surface 111 and the second reflective surface 112, and the incident groove 113 is used for incident light. The depth of the incident groove 113 is 6.0cm to 6.5cm, the incident groove 113 includes a second incident surface 1132, a second incident surface and a third incident surface 1133, and the second incident surface 1132 and the second incident surface are respectively located inside the sidewalls of both sides of the incident groove 113. The second incident surface 1132 is closer to the first reflecting surface 111 than to the second reflecting surface 112, and the second incident surface is closer to the second reflecting surface 112 than to the first reflecting surface 111. The third incident surface 1133 is disposed on the bottom surface of the incident groove 113. Since the light emitted from the blackboard lamp light source can enter the light inlet portion 11 from the second, and third incident surfaces 1132, 1133, the incident groove 113 can increase the incident area of the lamp light. The incident groove 113 is disposed to prevent a large amount of light from being reflected, so that the incident groove 113 can improve the utilization of the lamp light. The third incident surface 1133 is an arc surface, the arc is a convex arc protruding from the bottom of the incident slot 113, and the arc-shaped third incident surface 1133 can be used to increase the intensity of the incident slot 113. Since the third incident surface 1133 is a convex arc surface protruding from the bottom of the incident groove 113, the bottom of the incident groove 113 is in a convex arc shape, and the bottom of the convex arc shape can make the intensity of the incident groove 113 greater.
Referring to fig. 1 and 2, the light incident portion 11 further includes a fourth incident surface 114 and a fifth incident surface 115, and both the fourth incident surface 114 and the fifth incident surface 115 are located outside the incident groove 113. The fourth incident surface 114 is located between the first reflecting surface 111 and the second incident surface 1132, and the fifth incident surface 115 is located between the second reflecting surface 112 and the second incident surface. The lamp light may also enter the light inlet part 11 through the fourth incident surface 114 and the fifth incident surface 115, so that the fourth incident surface 114 and the fifth incident surface 115 may increase an incident area of the lamp light. Meanwhile, since the incident groove 113 is provided between the first and second reflection surfaces 111 and 112, and thus the strength of the lens body 10 is low, the fourth and fifth incident surfaces 114 and 115 may increase the strength of the lens body 10.
Referring to fig. 1 and 2, the light emergent portion 12 is located at the other end of the lens body 10, and the light emergent portion 12 is connected to the light incident portion 11. The light emitting portion 12 can be used for transmitting light, and the light emitting portion 12 includes a first light emitting surface 121, a second light emitting surface 122 and a third light emitting surface 123. The first light emitting surface 121 is located in the middle of one side of the light emitting portion 12, the second light emitting surface 122 is located at the lower end of the first light emitting surface 121, and the third light emitting surface 123 is located at the upper end of the first light emitting surface 121. The first light emitting surface 121 is a plane, the second light emitting surface 122 and the third light emitting surface 123 are both arc-shaped surfaces, the arc shape is a concave arc recessed in the light emitting portion 12, and the curvature of the third light emitting surface 123 is greater than that of the second light emitting surface 122. Compared with the design that the light-emitting surface is a plane, the light-emitting surface of the arc-shaped surface can save materials required for manufacturing the lens, so that a user can effectively reduce the manufacturing cost of the blackboard lamp lens. In addition, the user can also optimize the manufacturing time of the blackboard lamp lens, and the user can improve the production efficiency of the blackboard lamp lens.
Please refer to fig. 3 and fig. 4 in conjunction with fig. 2. The light emitting portion 12 includes a plurality of convex lenses 124, the shape of the convex lenses 124 is hexagonal, and the plurality of convex lenses 124 are distributed in an array on the first light emitting surface 121, the second light emitting surface 122, and the third light emitting surface 123. The convex lenses 124 can make the lens of the blackboard lamp transmit light more uniformly, and light can be uniformly irradiated on the blackboard. Therefore, the blackboard lamp lens can be used to prevent glare from occurring to a user.
Referring to fig. 1 and 2, the lens body 10 further includes two protrusions 13, and the two protrusions 13 are respectively connected to two sides of the light emergent portion 12. The protrusion 13 can be used for fixing the lens body 10 by matching with the clamping groove, and the height of the protrusion 13 is 1.8cm-2.0cm. Since the protrusion 13 is used to fix the lens body 10 in cooperation with the notch, the lens body 10 can be stably attached to the inside of the blackboard lamp. And the bulge 13 is integrally formed with the lens body 10, a gap is difficult to exist between the bulge 13 and the lens body 10, so that the connection between the lens body 10 and the bulge 13 is stable. Even if the user uses the blackboard lamp lens for a long time, the projection 13 is not released from the lens body 10. The length of the lens body 10 is 250mm to 350mm, and the height of the lens body 10 is 13.5cm to 13.7cm. Since the length of the lens body 10 is 250mm to 350mm, a user can replace a plurality of lenses with only the lens body 10. Therefore, the user can assemble the lens body 10 conveniently.
The utility model discloses a theory of operation does: when the blackboard lamp lens works, a user can install the blackboard lamp lens in the blackboard lamp through the bulge 13. The light source of the blackboard lamp emits light which enters the inside of the lens body 10 through the incident groove 113 on the light incoming portion 11. In order to increase the incident area of the light, the inner sides of the sidewalls of the incident groove 113 are respectively provided with a first incident surface 1131 and a second incident surface 1132, and the bottom of the incident groove 113 is provided with a third incident surface 1133. Meanwhile, the light may also enter the inside of the lens body 10 through the fourth incident surface 114 and the fifth incident surface 115 on the light entering portion 11. In order to increase the strength of the incident groove 113, the third incident surface 1133 is a convex arc surface protruding from the bottom of the incident groove 113. The light inside the lens body 10 may be reflected by the first and second reflection surfaces 111 and 112, and then, the light may be transmitted through the light emitting portion 12. In order to reduce the manufacturing cost of the blackboard lamp lens, the first light emitting surface 121 on the light emitting portion 12 is a plane, and the second light emitting surface 122 and the third light emitting surface 123 on the light emitting portion 12 are both arc-shaped surfaces. Moreover, the arc shape is a concave arc recessed in the light exit portion 12, and the curvature of the third light exit surface 123 is greater than that of the second light exit surface 122. In order to make the light transmission of the blackboard lamp lens more uniform, a plurality of convex lenses 124 are arranged on the light emergent portion 12. Subsequently, the light emitted from the light emitting portion 12 is irradiated onto the blackboard, and the light can be used to illuminate the blackboard.
The utility model provides a blackboard lamp lens, this blackboard lamp lens accessible light incident portion's incident groove incident ray. The light inside the blackboard lamp is reflected through the first reflecting surface and the second reflecting surface, and the blackboard lamp lens can transmit the light through the light-emitting part. The blackboard lamp lens can enable light rays irradiated on a blackboard to be more uniform, and therefore the blackboard lamp lens can be used for preventing a user from glare. The light-emitting part comprises a first light-emitting surface, a second light-emitting surface and a third light-emitting surface. The first light-emitting surface is a plane, and the second light-emitting surface and the third light-emitting surface are arc surfaces. The arc is a concave arc sunken in the light emergent part, and the curvature of the third light emergent surface is greater than that of the second light emergent surface. Compared with the design that the light-emitting surface is a plane, the light-emitting surface of the arc-shaped surface can save materials required for manufacturing the lens, so that a user can effectively reduce the manufacturing cost of the blackboard lamp lens. Effectively solved current blackboard lamp lens and had the higher technical problem of cost of manufacture. Moreover, the user can also optimize the manufacturing time of the blackboard lamp lens, and further the user can improve the production efficiency of the blackboard lamp lens.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that the scope of the present invention shall be determined by the scope of the appended claims.
Claims (10)
1. A blackboard lamp lens, characterized in that it includes:
a lens body, which is a transparent structure, comprising:
the light inlet part is positioned at one end of the lens body and comprises:
the first reflecting surface is positioned at the upper end of the light inlet part and used for reflecting light rays in the lens body;
the second reflecting surface is positioned at the lower end of the light inlet part and used for reflecting light rays in the lens body;
the incident groove is arranged between the first reflecting surface and the second reflecting surface and is used for incident light;
the light emitting part is positioned at the other end of the lens body, is connected with the light inlet part and is used for transmitting light rays, the light emitting part comprises a first light emitting surface, a second light emitting surface and a third light emitting surface, the first light emitting surface is positioned in the middle of one side of the light emitting part, the second light emitting surface is positioned at the lower end of the first light emitting surface, the third light emitting surface is positioned at the upper end of the first light emitting surface, the first light emitting surface is a plane, the second light emitting surface and the third light emitting surface are both arc-shaped surfaces, the arc shape is a concave arc shape sunken in the light emitting part, and the curvature of the third light emitting surface is larger than that of the second light emitting surface.
2. The blackboard lamp lens of claim 1, wherein the light emitting portion includes a plurality of convex lenses, and the plurality of convex lenses are distributed in an array on the first light emitting surface, the second light emitting surface, and the third light emitting surface.
3. The blackboard lamp lens of claim 1, wherein the incident groove includes a first incident surface, a second incident surface and a third incident surface, the first incident surface and the second incident surface are respectively located at the inner sides of the side walls at both sides of the incident groove, the first incident surface is close to the first reflecting surface relative to the second reflecting surface, the second incident surface is close to the second reflecting surface relative to the first reflecting surface, and the third incident surface is disposed on the bottom surface of the incident groove.
4. A blackboard lamp lens according to claim 3, characterised in that the third incident surface is a circular arc surface, the circular arc is a convex arc protruding from the bottom of the incident groove.
5. The blackboard lamp lens of claim 3, wherein the light incident portion further includes a fourth incident surface and a fifth incident surface, the fourth incident surface and the fifth incident surface are both located outside the incident groove, the fourth incident surface is located between the first reflecting surface and the first incident surface, and the fifth incident surface is located between the second reflecting surface and the second incident surface.
6. The blackboard light lens of claim 1, wherein the first and second reflecting surfaces are both arc-shaped surfaces, the arc shape is a convex arc protruding from the light incident portion, and the curvature of the second reflecting surface is greater than that of the first reflecting surface.
7. The blackboard light lens of claim 1, wherein the lens body further includes two protrusions, the two protrusions are respectively connected to two sides of the light-emitting portion, and the protrusions are used to cooperate with the slots to fix the lens body.
8. The blackboard light lens of claim 7, wherein the protrusion is integrally formed with the lens body.
9. The blackboard lamp lens of claim 1, wherein the length of the lens body is 250mm-350mm.
10. A blackboard lamp characterized in that it comprises the blackboard lamp lens according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221815629.8U CN217540626U (en) | 2022-07-13 | 2022-07-13 | Blackboard lamp lens and corresponding blackboard lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221815629.8U CN217540626U (en) | 2022-07-13 | 2022-07-13 | Blackboard lamp lens and corresponding blackboard lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217540626U true CN217540626U (en) | 2022-10-04 |
Family
ID=83423232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221815629.8U Active CN217540626U (en) | 2022-07-13 | 2022-07-13 | Blackboard lamp lens and corresponding blackboard lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217540626U (en) |
-
2022
- 2022-07-13 CN CN202221815629.8U patent/CN217540626U/en active Active
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