WO2018018383A1 - Educational blackboard with intelligent supplemental lighting - Google Patents

Abstract

An educational blackboard with intelligent supplemental lighting, comprising: a blackboard (1). A top portion of the blackboard (1) is provided with an opaque box (2). An LED lamp (20) and a light guide panel (21) with a trapezoid cross-section are internally provided within the box (2). The box (2) is provided with an indented cavity for engaging with the LED lamp (20) and the light guide panel (21). Two trapezoid side surfaces of the light guide panel (21) are provided with a light reflecting layer. The invention further comprises a light sensor (3) and a controller (4) disposed on one side of the blackboard. The controller (4) is used for receiving a light intensity reading from the light sensor (3), and for controlling the LED lamp (20) to adjust a brightness. When the light sensor (3) senses that the brightness of external lighting has become lower, the sensor sends a signal to the controller (4) to control the brightness of the LED lamp (20). A light is then uniformly emitted by means of the light guide panel (21). The invention is highly intelligent and does not cause an eye injury. The light guide panel (21) has a trapezoid cross-section. The light reflecting layer is provided on both sides of the light guide panel, providing a larger area of illumination and better utilization of a light beam. The invention has a simple structure and low cost, and is easy to popularize.

Description

 A smart fill light blackboard for education Technical field

The invention relates to the technical field of educational equipment, and more particularly to a smart fill light blackboard for education.

Background technique

The blackboard is used to realize the interaction between the teacher and the student. It has a very important position in the teaching process. The blackboard is usually made of wood, glass, composite materials, etc. The blackboard is used for teaching. It usually adopts black, dark green and white colors. However, in the actual education process, there is a big problem with the fill light of the blackboard. The direct light is supplemented by the fluorescent lamp, the light uniformity is poor, the control is poor, and it is easy to cause great harm to the students' eyes. .

technical problem

The technical problem to be solved by the present invention is to provide an intelligent light-filling blackboard for education that is intelligent and uniform in light, in view of the above-mentioned drawbacks of the prior art.

Technical solution

The technical solution adopted by the present invention to solve the technical problem thereof is:

Constructing a smart fill light blackboard for education, comprising a blackboard; wherein the upper end of the blackboard is provided with an opaque box body, and the box body is provided with an LED lamp and a light guide plate having a trapezoidal cross section; the box body is provided with the And a light-guiding layer; The light intensity is sensed and the brightness adjustment of the LED light is controlled.

In the educational smart fill light blackboard according to the present invention, the box body is evenly distributed on the upper end of the blackboard.

The educational smart fill light blackboard of the present invention, wherein an L-shaped baffle is arranged at the bottom of the blackboard.

The intelligent light-filling blackboard for education according to the present invention, wherein the baffle is provided with a light-absorbing coating.

Beneficial effect

The invention has the beneficial effects that when the light sensor senses that the external light is low, the signal is sent to the controller to control the brightness of the LED light, and the light is evenly emitted through the light guide plate, which is highly intelligent and does not cause damage to the eye; the light guide plate The cross section is trapezoidal and the reflective layer is arranged on both sides, the irradiation range is large, and the light utilization rate is high; the overall structure is simple, the cost is low, and it is easy to popularize.

DRAWINGS

In order to more clearly illustrate the embodiments of the present invention or the prior art, the present invention will be further described in conjunction with the accompanying drawings and embodiments. For ordinary technicians, other drawings can be obtained based on these drawings without any creative work:

1 is a schematic structural view of a smart fill light blackboard for education according to a preferred embodiment of the present invention;

2 is a schematic view showing the structure of an intelligent light-filling blackboard box for education according to a preferred embodiment of the present invention.

Embodiments of the invention

The present invention will be described in detail with reference to the embodiments of the present invention. Not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without any inventive effort are within the scope of the present invention.

The intelligent light-filling blackboard for education according to the preferred embodiment of the present invention is shown in FIG. 1 , and referring to FIG. 2 , including the blackboard 1 , the upper end of the blackboard 1 is provided with an opaque box 2 , and the box 2 is provided with an LED lamp 20 and a light guide plate 21 having a trapezoidal cross section; the casing 2 is provided with a cavity 22 for cooperating with the LED lamp 20 and the light guide plate 21; the light guide plate 21 is provided with a reflective layer on both sides of the trapezoid; and a light sensor disposed on one side of the blackboard 1 3 and controller 4; controller 4 is used to receive the light sensor 3 to induce light intensity and control the brightness adjustment of the LED lamp 20; when the light sensor 3 senses that the outside light is low, send a signal to the controller 4 to control the brightness of the LED lamp 20 The light is uniformly emitted through the light guide plate 21, and the intelligence is high and does not cause damage to the eyes; the light guide plate 21 has a trapezoidal cross section and a reflective layer on both sides, the illumination range is large, and the light utilization rate is high; the overall structure is simple , low cost, easy to popularize.

As shown in FIG. 1 and FIG. 2, the box body 2 is evenly distributed on the upper end of the blackboard 1, which is convenient for controlling the fill light range and obtaining a large light intensity range, and can save high power consumption while obtaining high brightness.

As shown in FIG. 1 and FIG. 2, an L-shaped baffle 10 is disposed at the bottom of the blackboard 1 to prevent excessive light from overflowing the range of the blackboard 1 to affect the viewing effect.

As shown in FIG. 1 and FIG. 2, the baffle 10 is provided with a light absorbing coating to reduce the influence of reflected light on the brightness and uniformity of the light, and improve the control precision.

It is to be understood that those skilled in the art will be able to make modifications and changes in accordance with the above description, and all such modifications and variations are intended to be included within the scope of the appended claims.

Claims (4)

An intelligent fill light blackboard for education, comprising a blackboard; wherein the upper end of the blackboard is provided with an opaque box body, and the box body is provided with an LED lamp and a light guide plate having a trapezoidal cross section; the box body is provided with a hinge The LED lamp and the concave cavity of the light guide plate; the light guide plate is provided with a reflective layer on both sides of the trapezoid; further comprising a light sensor and a controller disposed on one side of the blackboard; the controller is configured to receive light sensing The device senses the light intensity and controls the brightness adjustment of the LED light. The intelligent light-filling blackboard for education according to claim 1, wherein the casing is evenly distributed at a plurality of upper ends of the blackboard. The intelligent light-filling blackboard for education according to claim 1, wherein an L-shaped baffle is disposed at a bottom of the blackboard. The intelligent fill light blackboard for education according to claim 3, wherein the baffle is provided with a light absorbing coating.