CN213207555U - Writing board lamp with single lamp strip structure - Google Patents
Writing board lamp with single lamp strip structure Download PDFInfo
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- CN213207555U CN213207555U CN202022622174.5U CN202022622174U CN213207555U CN 213207555 U CN213207555 U CN 213207555U CN 202022622174 U CN202022622174 U CN 202022622174U CN 213207555 U CN213207555 U CN 213207555U
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- writing board
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Abstract
The utility model belongs to the technical field of lighting lamps and discloses a writing board lamp with a single lamp strip structure, which comprises a lamp body, wherein the lamp body comprises a shell and a lamp strip arranged on the shell; a light-transmitting cover is arranged on the light emitting surface of the shell, and the light-transmitting cover and the light bar form an included angle; one side of the shell, which is far away from the writing board, extends downwards to form a light shielding part, and the inner side surface of the light shielding part is provided with a sunken reflecting cambered surface; the lamp strip is provided with a lens, and a downward vertical line of the central point of the lens is intersected with the reflecting arc surface. The utility model discloses a mode that lens grading and reflection cambered surface reflection light combined together obtains excellent grading curve to obtain excellent illumination effect, it is good to be shone the face illuminance degree of consistency, can not produce dizzy sense.
Description
Technical Field
The utility model belongs to the technical field of the light, a clipboard lamp is related to, is a clipboard lamp of single lamp strip structure particularly.
Background
At present, most of writing board lamps on the market still have the concept of continuing a lamp tube and a base with a cover, the traditional fluorescent lamp tube or LED lamp tube is adopted inside the writing board lamp, and the base with the cover is used outside the writing board lamp. There are three important disadvantages to this design: firstly, the luminous angle of fluorescent tube is very big, though the shading of lamp shade, the light energy is still very serious extravagant, and the light energy that the clipboard surface received only accounts for a very little part. And secondly, the power of the lamp tube is limited, and the power cannot be increased, namely, the illuminance of the surface of the writing board cannot be improved, and generally, the illuminance of the surface of the writing board is far lower than the national requirement. And thirdly, the glare is serious, and the light with central light intensity basically irradiates towards the right lower part, so that the sight of a teacher is influenced.
The light emitting effect of the writing board lamp with the LED lens light distribution depends on the secondary light distribution design level of the lamp, field installation conditions and the like, the secondary light distribution of the lamp is the main determining factor, a good light distribution structure is needed, most of the light distribution of the writing board lamps on the market is not processed in place, the illumination effect is poor, the two aspects are mainly embodied, one is the illumination uniformity of the illuminated surface, and the other is the glare feeling of teachers.
Disclosure of Invention
The utility model aims at solving the above problem, provide a clipboard lamp of single lamp strip structure, can obtain excellent grading curve to obtain excellent illumination effect.
According to the technical scheme of the utility model, the writing board lamp with the single lamp strip structure comprises a lamp body, wherein the lamp body comprises a shell and a lamp strip arranged on the shell; a light-transmitting cover is arranged on the light emitting surface of the shell, and the light-transmitting cover and the light bar form an included angle; one side of the shell, which is far away from the writing board, extends downwards to form a light shielding part, and the inner side surface of the light shielding part is provided with a sunken reflecting cambered surface; the lamp strip is provided with a lens, and a downward vertical line of the central point of the lens is intersected with the reflecting arc surface.
Further, the light distribution angle of the lens is C0-180: 14-22 DEG/C90-C270: 40-55 degrees.
Further, the light distribution angle of the lens is C0-180: 16.8 °/C90-C270: and (5) 59.9 degrees.
Furthermore, an included angle between the normal direction of the lens and the horizontal direction is 76-85 degrees.
Further, the arc length of the reflecting arc surface is 550-620 mm.
The beneficial effects of the utility model reside in that: the excellent light distribution curve is obtained by combining the light distribution of the lens and the reflected light of the reflecting cambered surface, so that the excellent illumination effect is obtained, the illumination uniformity of the illuminated surface is good, and the vertigo feeling is avoided.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the lighting installation of the utility model.
Fig. 3 is a light distribution curve of the first embodiment.
Description of reference numerals: 1-lamp body, 1.1-shell, 1.2-lamp strip, 1.3-shading part, 2-lens, 3-light-transmitting cover, 4-reflecting cambered surface and 5-writing board.
Detailed Description
The invention will be further described with reference to the following specific embodiments and the accompanying drawings.
As shown in fig. 1: writing board lamp of single lamp strip structure, including lamp body 1, lamp body 1 includes casing 1.1, and it has the installation cavity to open on casing 1.1, installs lamp strip 1.2 in the installation cavity. The light emitting surface of the shell 1.1, namely the bottom surface of the mounting cavity, is provided with a light transmitting cover 3, and the light transmitting cover 3 and the lamp strip 1.2 are arranged at an included angle. The side of the casing 1.1 far away from the writing board 5 extends downwards to form a light shielding part 1.3, and the inner side surface of the light shielding part 1.3 is provided with a concave reflecting arc surface 4. Be equipped with lens 2 on lamp strip 1.2, the downward vertical line of central point of lens 2 intersects with reflection cambered surface 4, has guaranteed reflection spotlight effect, and lens grading and reflection cambered surface reflection light combine together for the illuminance of clipboard 5 is comparatively even.
Specifically, the lens 2 adopts a single mode, and in order to obtain a better light distribution structure, the light distribution angle of the single lens is C0-180: 14-22 DEG/C90-C270: 40-55 degrees, an included angle alpha between the normal direction of the lens 2 and the horizontal direction is 76-85 degrees, and the arc length of the reflecting arc surface 4 is 550-620 mm.
Example one
The light distribution angle C0-180 of the lens 2: 16.8 °/C90-C270: 59.9 degrees, an included angle alpha between the normal direction of the lens 2 and the horizontal direction is 82 degrees, the arc length of the reflecting arc surface 4 is 592.8mm, and according to the lighting design chart of FIG. 2: the horizontal distance a between the writing board lamp and the writing board 5 is 500mm, the vertical distance b is 200mm, after the writing board is installed, the illuminance uniformity of the surface of the writing board is tested to be more than 0.9, and the light distribution curve is shown in fig. 3.
Claims (5)
1. A writing board lamp with a single lamp strip structure comprises a lamp body (1), and is characterized in that the lamp body (1) comprises a shell (1.1) and a lamp strip (1.2) arranged on the shell (1.1); a light-transmitting cover (3) is arranged on the light-emitting surface of the shell (1.1), and the light-transmitting cover (3) and the lamp strip (1.2) form an included angle; one side of the shell (1.1) far away from the writing board (5) extends downwards to form a light shielding part (1.3), and the inner side surface of the light shielding part (1.3) is provided with a sunken reflecting arc surface (4); the LED lamp is characterized in that the lamp strip (1.2) is provided with a lens (2), and a downward vertical line of the central point of the lens (2) is intersected with the reflecting arc surface (4).
2. A tablet lamp of a single light bar structure as defined in claim 1 wherein the lens (2) has a light distribution angle of C0-180: 14-22 DEG/C90-C270: 40-55 degrees.
3. A tablet lamp of a single light bar structure as defined in claim 1 wherein the lens (2) has a light distribution angle of C0-180: 16.8 °/C90-C270: and (5) 59.9 degrees.
4. The tablet light of a single light bar structure as claimed in claim 1, wherein the angle between the normal direction of the lens (2) and the horizontal direction is 76-85 °.
5. The tablet lamp of a single light bar structure according to claim 1, wherein the arc length of the reflective arc surface (4) is 550 to 620 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622174.5U CN213207555U (en) | 2020-11-13 | 2020-11-13 | Writing board lamp with single lamp strip structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022622174.5U CN213207555U (en) | 2020-11-13 | 2020-11-13 | Writing board lamp with single lamp strip structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213207555U true CN213207555U (en) | 2021-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022622174.5U Active CN213207555U (en) | 2020-11-13 | 2020-11-13 | Writing board lamp with single lamp strip structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213207555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701095A (en) * | 2021-08-23 | 2021-11-26 | 江苏新广联光电股份有限公司 | Three-dimensionally adjustable writing board lamp |
-
2020
- 2020-11-13 CN CN202022622174.5U patent/CN213207555U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701095A (en) * | 2021-08-23 | 2021-11-26 | 江苏新广联光电股份有限公司 | Three-dimensionally adjustable writing board lamp |
| CN113701095B (en) * | 2021-08-23 | 2024-01-26 | 江苏新广联光电股份有限公司 | Writing board lamp capable of being adjusted in three dimensions |
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