CN210219637U - Lens and blackboard lamp - Google Patents

Abstract

The utility model discloses a lens and blackboard lamp, the lens upper end has seted up into the light trough, and it includes first income light surface and second income light surface to go into the light trough, and the lens includes first play light surface and the second play light surface that sets up respectively in the lens both sides, and first income light surface and first light-emitting personally submit first contained angle setting, and second income light surface and second light-emitting personally submit second contained angle setting; because the first light incident surface and the first light emergent surface form a first included angle, the second light incident surface and the second light emergent surface form a second included angle, light rays incident through the second light incident surface are emitted through the second light emergent surface, the light rays can be uniformly emitted according to a preset irradiation angle after being refracted through the first light emergent surface and the second light emergent surface, the light rays emitted by the light source of the embodiment are uniformly irradiated after being emitted through the lens, the illuminance is high, and the anti-glare effect is better.

Description

Lens and blackboard lamp

Technical Field

The utility model relates to a lamps and lanterns field, in particular to lens and blackboard lamp.

Background

In practical application of school teaching, a light-diffusing plate is usually installed outside a light source of a blackboard lamp in a classroom for diffusing light, but the existing light-diffusing lamp has poor anti-glare effect, and light emitted by the light source through the light-diffusing plate is not uniformly irradiated, so that glare is easily generated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide lens and blackboard lamp, can make light shine more evenly to reach the purpose of anti-dazzle.

According to the utility model discloses an aspect provides lens, the light groove has been seted up into to the lens upper end, the light groove includes first income plain noodles and second income plain noodles, lens are including setting up the first play plain noodles and the second play plain noodles in its both sides, first income plain noodles with first contained angle setting is personally submitted to first light-emitting, the second go into the plain noodles with the second contained angle setting is personally submitted to the second light-emitting.

Further, lens still include the third and go out the plain noodles and the fourth play plain noodles, the third go out the plain noodles with the second goes out the plain noodles and intersects, the third go out the plain noodles with the obtuse angle setting is personally submitted to the second light-emitting, the fourth goes out the plain noodles and sets up the lower terminal surface of lens, the fourth go out the plain noodles with the third contained angle setting is personally submitted to first light-emitting.

Furthermore, an arc light-emitting groove is formed in one end, opposite to the light-entering groove, of the lens, and two ends of the arc light-emitting groove are intersected with the third light-emitting surface and the fourth light-emitting surface respectively.

Furthermore, the light incident groove is a V-shaped groove, and the first light incident surface and the second light incident surface are two side surfaces of the V-shaped groove.

The lens has at least the following beneficial effects: the light rays generated by the light source enter the lens through the first light entering surface and the second light entering surface, the included angle is formed between the first light entering surface and the first light exiting surface, the light rays entering the lens can be emitted from the lens at a preset irradiation angle after being reflected by the first light exiting surface, the included angle is formed between the second light entering surface and the second light exiting surface, the light rays entering the lens through the second light exiting surface are emitted, the light rays can be uniformly emitted according to the preset irradiation angle after being refracted by the first light exiting surface and the second light exiting surface, the light rays emitted by the light source of the embodiment are uniformly irradiated through the lens, the illumination is high, and the anti-glare effect is better.

According to the utility model discloses an in two aspects, provide blackboard lamp, include lens to and lamp stand body and light source, lens are installed on the lamp stand body, the light source is located the opening part of income light groove.

Further, an arc-shaped reflecting piece is arranged on the lamp holder body and is located on the lower side of the lens.

Furthermore, a sliding groove is formed in the lamp holder body, a sliding block matched with the sliding groove is arranged on the lens, and the lens is slidably installed in the sliding groove through the sliding block.

Furthermore, the lamp holder further comprises a hoisting assembly, and one end of the hoisting assembly is slidably mounted on the lamp holder body.

Further, the hoisting assembly comprises a fixed block, a fixed rod and a hoisting seat, one end of the fixed rod is fixedly connected with the fixed block, the other end of the fixed rod is connected with the hoisting seat, and the fixed block is slidably arranged on the lamp holder body.

Furthermore, a T-shaped groove is formed in the upper end of the lamp holder body, and the fixing block is slidably mounted in the T-shaped groove.

The blackboard lamp at least has the following beneficial effects: the lens is arranged on the lamp holder body, the light source is arranged at the entrance of the light inlet groove, light generated by the light source enters the lens through the first light inlet surface and the second light inlet surface, the first light inlet surface and the first light outlet surface form an included angle, the light entering through the first light inlet surface can be emitted from the lens according to a preset irradiation angle after being reflected through the first light outlet surface, the second light inlet surface and the second light outlet surface form an included angle, the light entering through the second light inlet surface is emitted through the second light outlet surface, and the light can be uniformly emitted according to the preset irradiation angle after being refracted through the first light outlet surface and the second light outlet surface.

Drawings

The present invention will be further explained with reference to the drawings and examples;

FIG. 1 is a schematic view of a lens according to an embodiment of the present invention;

FIG. 2 is a view in one of the orientations of FIG. 1;

FIG. 3 is a schematic view of the overall structure of a blackboard lamp according to an embodiment of the present invention;

fig. 4 is a partial schematic structural view of an embodiment of the present invention;

FIG. 5 is a view of FIG. 4 in one of the orientations;

FIG. 6 is an enlarged partial view of FIG. 5;

fig. 7 is a schematic structural diagram of a hoisting assembly according to an embodiment of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the orientation or positional relationship indicated, for example, up, down, front, rear, left, right, etc., referred to the orientation description is the orientation or positional relationship shown in the drawings, and is only for convenience of description of the embodiments of the present invention and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the embodiments of the present invention.

In the description of the embodiments of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the embodiments of the present invention, unless explicitly defined otherwise, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the embodiments of the present invention by combining the specific contents of the technical solutions.

Referring to fig. 1, in the lens 200 of the present embodiment, the upper end of the lens 200 is provided with a light incident groove 201, the light groove 201 includes a first light incident surface 2011 and a second light incident surface 2012, the lens 200 includes a first light emitting surface 202 and a second light emitting surface 203 respectively disposed at two sides of the lens 200, the lens 200 further includes a third light emitting surface 204 and a fourth light emitting surface 205, the third light emitting surface 204 intersects with the second light emitting surface 203, and the fourth light emitting surface 205 is disposed at the lower end surface of the lens 200. The lens in this implementation make full use of optical principle, is provided with a plurality of income plain noodles and a plurality of play plain noodles with lens, and light passes through refraction and reflection at income plain noodles and play plain noodles, can make anti-dazzle light effect better to can improve illuminance greatly.

In some embodiments, as shown in fig. 2, the first light incident surface 2011 and the first light emitting surface 202 form a first included angle a, preferably, the first included angle a is 15 degrees to 70 degrees, further preferably, the first included angle a is 25 degrees to 40 degrees, the second light incident surface 2012 and the second light emitting surface 203 form a second included angle B, preferably, the second included angle B is 2 degrees to 40 degrees, further preferably, the second included angle B is 5 degrees to 15 degrees; in this embodiment, the light generated by the light source 300 enters the lens 200 through the first light incident surface 2011 and the second light incident surface 2012, because the first light incident surface 2011 and the first light emitting surface 202 form a first included angle a, the light entering through the first light incident surface 2011 can be emitted from the lens 200 according to a predetermined irradiation angle after being reflected by the first light emitting surface 202, because the second light incident surface 2012 and the second light emitting surface 203 form a second included angle B, the light entering through the second light incident surface 2012 is emitted through the second light emitting surface 203, the light can be emitted uniformly according to the predetermined irradiation angle after being refracted by the first light emitting surface 202 and the second light emitting surface 203, the light is emitted uniformly through the lens 200, the illuminance is high, and the anti-glare effect is better. It should be noted that the first light incident surface 2011 and the second light incident surface 2012 in the present embodiment are preferably planar, but the first light incident surface 2011 and the second light incident surface 2012 may also be designed to be curved, for example, to be configured to be a TIR optical curved surface.

In some embodiments, as shown in fig. 2, the third light emitting surface 204 and the second light emitting surface 203 form an obtuse angle C, preferably, the obtuse angle C is 120-150 degrees, further preferably, the obtuse angle C is 130-145 degrees, the fourth light emitting surface 205 is disposed on the lower end surface of the lens 200, and the fourth light emitting surface 205 and the first light emitting surface 202 form a third included angle D, preferably, the third included angle D is 45-90 degrees, further preferably, the third included angle D is 60-80 degrees. In this embodiment, the third light emitting surface 204 is arranged to receive a part of the light incident from the second light incident surface, so that the light emitted from the third light emitting surface 204 and the light emitted from the second light emitting surface 203 are kept within a certain irradiation angle range, and the fourth light emitting surface 205 is used to receive a part of the light reflected from the first light emitting surface 202, and the light is emitted from the fourth light emitting surface 205 out of the lens 200 after being reflected from the first light emitting surface 202, so that a part of the light is emitted from the lens 200 according to a required angle, thereby further enhancing illuminance and better preventing glare. It should be noted that, in the present embodiment, the third light-emitting surface 204 and the fourth light-emitting surface 205 may also be curved surfaces, and the third light-emitting surface 204 and the fourth light-emitting surface 205 are connected to form an arc-shaped surface, so that the incident light can be emitted within a certain angle range.

In some embodiments, as shown in fig. 1 and fig. 2, an arc light-exiting groove 206 is disposed at an end of the lens 200 opposite to the light-entering groove 201, and two ends of the arc light-exiting groove 206 intersect with the third light-exiting surface 204 and the fourth light-exiting surface 205, respectively. In this embodiment, the arc light-exiting groove 206 is used to receive a portion of the light beams from the second light-entering surface and emit the portion of the light beams within a certain angle range, so as to further enhance the illuminance within the irradiation angle and increase the anti-glare effect. It should be noted that the arc light-emitting groove 206 in this embodiment may also be a V-shaped groove or a trapezoidal groove.

In some embodiments, as shown in fig. 1 and fig. 2, the light incident groove 201 is a V-shaped groove, and the first light incident surface 2011 and the second light incident surface are two side surfaces of the V-shaped groove. It should be noted that the V-shaped groove in this embodiment is only a preferred embodiment, and may also be a trapezoidal groove, and the shape of the light incident groove 201 in this embodiment is not limited.

In some embodiments, as shown in fig. 3, the blackboard lamp in the present embodiment includes: lamp stand body 100, lens 200, light source and hoist and mount subassembly 400, but the one end slidable mounting of hoist and mount subassembly 400 is on lamp stand body 100 to the fixed position of convenient adjustment hoist and mount subassembly 400, the practicality is better, and is rational in infrastructure, and lens 200 is installed on the lamp stand body 100, light source 300 is located the opening part of income light groove 201.

In some embodiments, as shown in fig. 4, 5 and 6, an arc-shaped light reflecting sheet 101 is disposed on the socket body 100, and the arc-shaped light reflecting sheet 101 is located below the fourth light emitting surface 205. Preferably, the light-reflecting plate 101 is convex upward, and of course, the light-reflecting plate may also be concave downward, so that a part of the light emitted from the fourth light-emitting surface 205 is reflected by the curved light-reflecting surface and reflected into a predetermined illumination angle range, thereby further enhancing the illuminance within the illumination angle range.

In some embodiments, as shown in fig. 6, the light source 300 enters from the second light incident surface 2012, the light refracted by the second light incident surface 2012 is mainly divided into three parts, which are respectively emitted to the second light emitting surface 203, the third light emitting surface 204 and the arc light emitting groove 206, the first part of the light is refracted again by the second light emitting surface 203 and then emitted within a predetermined irradiation angle range, the second part of the light is refracted again by the third light emitting surface 204 and then emitted within a predetermined irradiation angle range, the third part of the light is refracted again by the arc light emitting groove 206 and then emitted within a predetermined irradiation angle range, the light source 300 enters from the first light incident surface 2011, a part of the light is directly emitted through the first light incident surface 2011 and emitted to the socket body 100, the light is emitted again through the lens 200 after being reflected by the socket body 100, a part of the light is emitted to the fourth light emitting surface 205 after being reflected by the first light incident surface 2011 and then emitted to the arc light, the arc-shaped light reflecting sheet 101 is arranged according to a preset radian, so that the light rays emitted after being refracted again by the fourth light emitting surface 205 are reflected on the arc-shaped light reflecting sheet 101 and emitted to a preset irradiation angle range. In this embodiment, most of the light emitted from the light source 300 is reflected or refracted by the lens 200 and the arc-shaped light-reflecting sheet 101 and then emitted to the preset irradiation angle range, so that the illuminance of the light source 300 is greatly improved, a good anti-glare effect is achieved, and the vision of students and teachers can be effectively protected by aligning the preset irradiation angle to the blackboard.

In some embodiments, as shown in fig. 6, the socket body 100 is provided with a sliding slot 102, the lens 200 is provided with a sliding block 207 matching with the sliding slot 102, and the lens 200 is slidably mounted in the sliding slot 102 through the sliding block 207. Preferably, the two sliding grooves 102 are arranged at different vertical heights, the two sliding blocks 207 on the lens 200 are also arranged, the sliding blocks 207 on the lens 200 and the sliding grooves 102 are arranged at corresponding heights, the lens 200 can be conveniently disassembled and assembled through the matching of the sliding grooves 102 and the sliding blocks 207, and the structure is simple and reasonable.

In some embodiments, as shown in fig. 6, the socket body 100 is provided with a mounting groove 103, the mounting groove 103 is located at the upper end of the sliding groove 102, and the light source 300 is mounted in the mounting groove 103. Through the matching installation of the installation groove 103 and the light source 300, the light source 300 can be conveniently installed or detached, and the light source 300 is convenient to replace.

In some embodiments, as shown in fig. 3 and 4, the socket body 100 is configured to be elongated, the covers 105 are installed at two ends of the socket body 100, and the light source 300 or the lens 200 installed in the socket body 100 can be prevented from falling off by the covers 105.

In some embodiments, as shown in fig. 3 and 5, a lifting assembly 400 is further included, and one end of the lifting assembly 400 is slidably mounted on the socket body 100. The fixed position of adjustment hoist and mount subassembly 400 that can be convenient, the practicality is better, rational in infrastructure. The hoisting assembly 400 in this embodiment can be slidably mounted on the lamp body base through a screw rod slider structure, and can also be slidably mounted on the lamp body 100 through a slide rail slider structure.

In some embodiments, as shown in fig. 7, the hoisting assembly 400 includes a fixing block 401, a fixing rod 402 and a hoisting seat 403, wherein one end of the fixing rod 402 is fixedly connected to the fixing block 401, the other end of the fixing rod 402 is connected to the hoisting seat 403, and the fixing block 401 is slidably disposed on the lamp holder body 100. The simple structure of this embodiment is reasonable, and is fixed firm.

In some embodiments, as shown in fig. 4 and 5, a T-shaped groove 104 is formed at the upper end of the socket body 100, and the fixing block 401 is slidably mounted in the T-shaped groove 104. It should be noted that, the T-shaped groove 104 in this embodiment means that the cross section perpendicular to the length direction thereof is T-shaped, and preferably, at least one end of the T-shaped groove 104 extends to one end surface of the lamp holder body 100, so as to facilitate the installation of the fixing plate, and the number of the hoisting assemblies 400 can be conveniently increased or decreased by the sliding fit of the T-shaped groove 104 and the fixing block 401, which has wide applicability.

The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims (10)

1. Lens, its characterized in that, light groove (201) have been seted up into to lens (200) upper end, go into light groove (201) and go into plain noodles (2012) including first income plain noodles (2011) and second, lens (200) are including setting up first play plain noodles (202) and the second play plain noodles (203) in its both sides, first income plain noodles (2011) with first play plain noodles (202) are the setting of first contained angle, the second go into plain noodles (2012) with second play plain noodles (203) are the setting of second contained angle.

2. The lens according to claim 1, wherein the lens (200) further comprises a third light emitting surface (204) and a fourth light emitting surface (205), the third light emitting surface (204) intersects the second light emitting surface (203), the third light emitting surface (204) and the second light emitting surface (203) are arranged at an obtuse angle, the fourth light emitting surface (205) is arranged at a lower end face of the lens (200), and the fourth light emitting surface (205) and the first light emitting surface (202) are arranged at a third included angle.

3. The lens according to claim 2, wherein the lens (200) is provided with an arc light-emitting groove (206) at an end opposite to the light-entering groove (201), and two ends of the arc light-emitting groove (206) intersect with the third light-emitting surface (204) and the fourth light-emitting surface (205), respectively.

4. The lens of claim 1, wherein the light incident groove (201) is a V-groove, and the first light incident surface (2011) and the second light incident surface (2012) are two side surfaces of the V-groove.

5. Blackboard lamp, characterised in that it comprises a lens according to any one of claims 1 to 4, a socket body (100) and a light source (300), the lens (200) being mounted on the socket body (100), the light source (300) being located at the opening of the light entrance slot (201).

6. A blackboard lamp according to claim 5, characterized in that the lamp holder body (100) is provided with an arc-shaped reflector (101), and the arc-shaped reflector (101) is located at the lower side of the lens (200).

7. A blackboard lamp according to claim 5, characterized in that the lamp holder body (100) is provided with a sliding slot (102), the lens (200) is provided with a sliding block (207) matched with the sliding slot (102), and the lens (200) is slidably mounted in the sliding slot (102) through the sliding block (207).

8. A blackboard lamp according to claim 5, further comprising a lifting assembly (400), wherein one end of the lifting assembly (400) is slidably mounted on the socket body (100).

9. The blackboard lamp of claim 8, wherein the lifting assembly (400) includes a fixing block (401), a fixing rod (402) and a lifting seat (403), one end of the fixing rod (402) is fixedly connected with the fixing block (401), the other end of the fixing rod (402) is connected with the lifting seat (403), and the fixing block (401) is slidably disposed on the lamp holder body (100).

10. A blackboard lamp according to claim 9, characterized in that the upper end of the lamp holder body (100) is provided with a T-shaped groove (104), and the fixing block (401) is slidably mounted in the T-shaped groove (104).

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