CN219346296U - Double-side illumination structure - Google Patents
Double-side illumination structure Download PDFInfo
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- CN219346296U CN219346296U CN202320115514.6U CN202320115514U CN219346296U CN 219346296 U CN219346296 U CN 219346296U CN 202320115514 U CN202320115514 U CN 202320115514U CN 219346296 U CN219346296 U CN 219346296U
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Abstract
The utility model relates to the technical field of lighting equipment, and provides a double-side lighting structure capable of solving the problem that a transmission beam and a reflection beam of the existing double-side lighting equipment are not parallel. The double-side illumination structure comprises a light reflecting structure and at least one light source which is arranged on the outer side of the light reflecting structure and used for projecting light beams to the light reflecting structure, the light reflecting structure comprises at least one first semi-transparent semi-reflective film and at least one second semi-transparent semi-reflective film which are obliquely arranged relative to the light beams, the included angle between the first semi-transparent semi-reflective film and the light beams is larger than 0 degree, and the included angle between the second semi-transparent semi-reflective film and the light beams is equal to the included angle between the first semi-transparent semi-reflective film and the light beams.
Description
Technical Field
The utility model relates to the technical field of lighting equipment, in particular to a double-side lighting structure.
Background
In the existing double-side illumination device, after light beams are emitted from a light source, the light beams are transmitted and reflected once, so that the propagation direction of the light beams is changed, the directions of the transmitted light beams and the reflected light beams are not parallel, the two light beams emitted by the double-side illumination device are not parallel, and therefore the device cannot be used in some scenes needing double-side parallel light illumination (such as marks needing to emit light on the inner side and the outer side of an electrical panel).
Disclosure of Invention
The utility model provides a double-side illumination structure, which aims to solve the problem that a transmission beam and a reflection beam of the existing double-side illumination device are not parallel.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a two side illumination structures, includes reflecting structure and at least one is located reflecting structure's outside is used for to the light source of light beam is projected to reflecting structure, follows the direction that the light beam was projected, reflecting structure includes relative the light beam slope sets up at least one first semi-transparent semi-reflective membrane and at least one second semi-transparent semi-reflective membrane, first semi-transparent semi-reflective membrane with the contained angle of light beam is greater than 0, the second semi-transparent semi-reflective membrane with the contained angle of light beam equals first semi-transparent semi-reflective membrane with the contained angle of light beam.
As a possible embodiment, the first semi-transparent and semi-reflective membrane and the second semi-transparent and semi-reflective membrane have an included angle of more than 0 °.
As a possible embodiment, the included angle between the first semi-transparent semi-reflective film and the second semi-transparent semi-reflective film is 90 °.
As a possible implementation manner, the light reflecting structure further comprises a first light transmitting substrate and a second light transmitting substrate, and the first semi-transparent and semi-transparent film and the second semi-transparent and semi-transparent film are respectively arranged on the first light transmitting substrate and the second light transmitting substrate.
As a possible implementation manner, the first semi-transparent and semi-reflective film is fixed on one side of the first transparent substrate, which is close to the second transparent substrate.
As a possible implementation manner, the first semi-transparent and semi-reflective film is fixed on one side of the first transparent substrate, which is close to the second transparent substrate.
As a possible embodiment, the device further comprises a collimating cup, through which the light source projects a light beam.
As a possible implementation manner, an included angle between the axis of the collimating cup and the plane where the first semi-transparent and semi-reflective film is located or the plane where the second semi-transparent and semi-reflective film is located is 45 °.
As one possible implementation manner, the light reflecting structure includes two first semi-transparent and semi-reflective films and two second semi-transparent and semi-reflective films, the light sources are four, the two first semi-transparent and semi-reflective films are adjacently arranged, the two second semi-transparent and semi-reflective films are adjacently arranged, and the four light sources respectively project light beams to the two first semi-transparent and semi-reflective films and the two second semi-transparent and semi-reflective films.
As a possible implementation manner, the light source device further comprises a first light filtering film and a second light filtering film, wherein the first light filtering film is arranged on one side of the first semi-transparent and semi-reflective film, which is close to the light source, and the second light filtering film is arranged on one side of the second semi-transparent and semi-reflective film, which is close to the light source.
The utility model has the beneficial effects that: the utility model provides a double-side illumination structure, which comprises the following working processes: the utility model provides a two side illumination structures, includes reflecting structure and at least one is located reflecting structure's outside is used for to the light source of light beam is projected to reflecting structure, follows the direction that the light beam was projected, reflecting structure includes relative the light beam slope sets up at least one first semi-transparent semi-reflective membrane and at least one second semi-transparent semi-reflective membrane, first semi-transparent semi-reflective membrane with the contained angle of light beam is greater than 0, the second semi-transparent semi-reflective membrane with the contained angle of light beam equals first semi-transparent semi-reflective membrane with the contained angle of light beam.
The light source is used for generating and projecting light beams, after the light beams projected by the light source reach the first semi-transparent semi-reflective film, one part of light beams are reflected to one direction by the first semi-transparent semi-reflective film, the other part of light beams are transmitted to the second semi-transparent semi-reflective film along the projection direction by the first semi-transparent semi-reflective film, one part of light beams reaching the second semi-transparent semi-reflective film are reflected to the other direction, and the other part of light beams are emitted from the second semi-transparent semi-reflective film. Because the included angle between the first semi-transparent semi-reflective film and the light beam is larger than 0 degrees, the included angle between the second semi-transparent semi-reflective film and the light beam is equal to the included angle between the first semi-transparent semi-reflective film and the light beam. Therefore, the direction of reflection of the light beam emitted from the light source at the first transflective film is parallel to the direction of reflection at the second transflective film, and the direction of reflection of the light beam at the first transflective film is opposite to the direction of reflection of the light beam at the second transflective film. The problem that two light beams emitted by the existing double-side lighting device are not parallel can be solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of a double-sided illumination structure according to an embodiment of the present utility model;
fig. 2 is a schematic front view of a double-side illumination structure according to an embodiment of the present utility model;
fig. 3 is a schematic light path diagram of a double-side illumination structure according to an embodiment of the present utility model.
Wherein, each reference sign in the figure: 100. a collimation cup; 200. a light reflecting structure; 201. a first transflective film; 202. and a second semi-permeable semi-reflective membrane.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the conventional double-side illumination apparatus, a part of the light beam projected from the light source is transmitted through one half-transmissive and the other part of the light beam projected from the light source is reflected. Since the transmitted light beam and the reflected light beam cannot be parallel, the two light emitting directions of the lighting device are not parallel. In some scenes where two parallel light beams with opposite propagation directions are required, for example, a sign is disposed at opposite positions on two sides of the light board, and the sign needs to be illuminated. If the existing double-side lighting device is installed in the lamp panel, two beams of light emitted by the double-side lighting device cannot be vertically irradiated on two marks at the same time, so that the brightness of one mark is insufficient to influence the display effect of the lamp panel, and if the luminous brightness of the mark is increased, an additional structure is required to be added to change the propagation direction of one beam of light, so that the two beams of light are propagated in parallel.
In order to solve the above-mentioned problems, please refer to fig. 1 and 2, the present utility model provides a double-side illumination structure. Comprises a light reflecting structure 200 for changing the propagation path of light and at least one light source located outside the light reflecting structure 200 for projecting a light beam to the light reflecting structure 200. The light source may refer to a light emitter capable of emitting visible light of a certain wavelength range. The light source may be a point light source or a parallel light source. Alternatively, the light source may be a monochromatic light source, such as a red light source, a green light source, or a blue light source, or a composite light source, such as a white light source. The light reflecting structure 200 includes at least one first transflective film 201 and at least one second transflective film 202 disposed obliquely with respect to the light beam in the direction in which the light beam is projected. The first and second semi-transparent and semi-reflective films 201 and 202 may be disposed in a manner of tensioning a stent, and the first and second semi-transparent and semi-reflective films 201 and 202 may be replaced with other materials having a transreflective characteristic. By tilted arrangement it is meant that the angle between the light beam and both the first 201 and second 202 transflective films is less than 90. The first transflective film 201 is for first reflecting and first transmitting the light beam, and the second transflective film 202 is for second reflecting and second transmitting the light beam. In order to enable the light beam to be reflected in one direction at the first transflective film 201, the angle between the first transflective film 201 and the light beam is greater than 0 °, and in order to enable the light beam to be reflected in the other direction opposite to the one direction at the second transflective film 202, the angle between the second transflective film 202 and the light beam is equal to the angle between the first transflective film 201 and the light beam.
Since the angle between the first transflective film 201 and the light beam is greater than 0 °, the angle between the second transflective film 202 and the light beam is equal to the angle between the first transflective film 201 and the light beam. Therefore, the reflection direction of the light beam emitted from the light source at the first transflective film 201 is parallel to the reflection direction at the second transflective film 202, and the reflection direction of the light beam at the first transflective film 201 is opposite to the reflection direction of the light beam at the second transflective film 202. The problem that two light beams emitted by the existing double-side lighting device are not parallel can be solved.
As a possible implementation, please refer to fig. 1. The first and second semi-transparent films 201 and 202 have an included angle of more than 0 °. This embodiment makes the first and second semi-transparent films 201 and 202 not arranged in parallel, and forms a shrinkage-shaped opening space between the first and second semi-transparent films 201 and 202. This kind of setting up mode can make light assemble after the reflection between first semi-transparent semi-reflecting film 201 and second semi-transparent semi-reflecting film 202, and light is penetrated out from the great opening part between first semi-transparent semi-reflecting film 201 and the second semi-transparent semi-reflecting film 202, can make the luminance of the light beam that jets out higher, is applicable to the scene such as needs high-power illumination.
As a possible implementation, please refer to fig. 1 and 2. The first and second semi-transparent films 201 and 202 have an included angle of 90 °. In this embodiment, the transmission amount and the reflection amount of the light beam emitted by the same light source at the first transflective film 201 are equal, and the transmission amount and the reflection amount of the light beam at the second transflective film 202 are equal, so that the illumination intensity in the first direction is approximately equal to the illumination intensity in the second direction, the illumination intensity in the first direction and the illumination intensity in the second direction of the double-side illumination structure are approximately equal, and the overall illumination intensities in the two directions are more uniform and even.
In order to be able to more reliably mount the first and second semi-permeable membranes 201, 202, reference is made to fig. 1 and 2 as a possible embodiment. The light reflecting structure 200 further includes a first light transmitting substrate and a second light transmitting substrate, and the first transflective film 201 and the second transflective film 202 are disposed on the first light transmitting substrate and the second light transmitting substrate, respectively. The first light-transmitting substrate and the second light-transmitting substrate are made of transparent materials, and can respectively provide a supporting plane for the first semi-transparent semi-reflecting film 201 and the second semi-transparent semi-reflecting film 202, so that the first semi-transparent semi-reflecting film 201 and the second semi-transparent semi-reflecting film 202 are not easy to damage when being subjected to external force, the working reliability of the double-side illumination structure is improved, and the selectable range of application scenes of the double-side illumination structure can be effectively widened.
In order to further improve the operational reliability of the double-side illumination structure, please refer to fig. 1 and 2 as a possible embodiment. The first transflective film 201 is fixed on a side of the first light transmissive substrate near the second light transmissive substrate. In order to be able to avoid the external structure from scratching the first transflective film 201, the first transflective film 201 may be fixed on a side of the first light-transmitting substrate near the second light-transmitting substrate such that the first transflective film 201 is located in a space between the first light-transmitting substrate and the second light-transmitting substrate. The first semi-transparent and semi-reflective film 201 is isolated in the space between the first light-transparent substrate and the second light-transparent substrate, and the external structure is not easy to contact the first semi-transparent and semi-reflective film 201, so that the first semi-transparent and semi-reflective film 201 is not easy to damage. The operational reliability of the double-side illumination structure can be effectively improved.
In order to further improve the operational reliability of the double-side illumination structure, please refer to fig. 1 and 2 as a possible embodiment. The second transflective film 202 is fixed on a side of the second light transmissive substrate near the first light transmissive substrate. In order to avoid the external structure from scratching the second semi-transparent and semi-reflective film 202, the second semi-transparent and semi-reflective film 202 may be fixed on a side of the first light-transparent substrate close to the second light-transparent substrate such that the second semi-transparent and semi-reflective film 202 is located in a space between the first light-transparent substrate and the second light-transparent substrate. The second semi-transparent and semi-reflective film 202 is isolated in the space between the first light-transparent substrate and the second light-transparent substrate, and the external structure is not easy to contact the second semi-transparent and semi-reflective film 202, so that the second semi-transparent and semi-reflective film 202 is not easy to be damaged. The operational reliability of the double-side illumination structure can be effectively improved.
In order to make the light beam emitted by the double-side illumination structure have strong directivity, as a possible implementation, please refer to fig. 1. The double-sided illumination structure further comprises a collimating cup 100, through which collimating cup 100 the light source projects a light beam. The collimating cup can converge and collimate the light beams emitted by the light source, so that the light beams reaching the first semi-transparent semi-reflective film 201 and the second semi-transparent semi-reflective film 202 are parallel light beams, and the light beams reflected at the first semi-transparent semi-reflective film 201 and the second semi-transparent semi-reflective film 202 are parallel light beams. The light rays emitted to the outside by the double-side illumination structure are parallel light, so that the light beams emitted by the double-side illumination structure have stronger directivity and can be accurately directed in a certain direction.
In order to enable the light emitted by the double-side illumination structure to be perpendicular to the axis of the collimating cup 100, please refer to fig. 1, 2 and 3 as a possible embodiment. The angle between the axis of the collimating cup 100 and the plane of the first transflective film 201 or the plane of the second transflective film 202 is 45 °. When the included angle between the axis of the collimating cup 100 and the plane of the first transflective film 201 is 45 °, the incident angle of the light beam parallel to the axis of the collimating cup 100, which is emitted from the collimating cup 100, on the first transflective film 201 is 45 °, and the angle between the incident angle and the reflection angle of the light beam emitted from the collimating cup 100, which is emitted from the collimating cup 201, is 45 °, so that the light beam emitted from the collimating cup 100 is perpendicular to the light beam reflected by the first transflective film 201. Similarly, after the light emitted from the collimating cup 100 passes through the first transflective film 201 and reaches the second transflective film 202, the incident angle and the reflection angle on the second transflective film 202 are both 45 °, so that the light reflected by the second transflective film 202 is perpendicular to the light transmitted by the first transflective film 201. In summary, when the included angle between the axis of the collimating cup 100 and the plane of the first transflective film 201 or the plane of the second transflective film 202 is 45 °, the light emitted by the dual-side illumination structure can be perpendicular to the axis of the collimating cup 100.
As a possible implementation, please refer to fig. 1 and 2. The light reflecting structure 200 may include two first semi-transparent and semi-transparent films 201 and two second semi-transparent and semi-transparent films 202, four light sources are provided, the two first semi-transparent and semi-transparent films 201 are adjacently disposed, the two second semi-transparent and semi-transparent films 202 are adjacently disposed, and the four light sources respectively project light beams to the two first semi-transparent and semi-transparent films 201 and the two second semi-transparent and semi-transparent films 202. The light source and the reflecting structure of the embodiment are more reasonable in layout, and can output light with higher brightness while saving space.
In order to be able to emit light of the desired color, as a possible embodiment, please refer to fig. 1. The light source device further comprises a first light filtering film and a second light filtering film, wherein the first light filtering film is arranged on one side, close to the light source, of the first semi-transparent semi-reflecting film 201, and the second light filtering film is arranged on one side, close to the light source, of the second semi-transparent semi-reflecting film 202. The first filter film and the second filter film may be a red filter film, a yellow filter film, or a blue filter film, for example. For example, when the double-side illumination structure is required to emit blue light, the first filter film and the second filter film are blue filter films; when the double-side illumination structure is required to emit red light, the first filter film and the second filter film are red filter films; when the double-side illumination structure is required to emit yellow light, the first filter film and the second filter film are yellow filter films;
the foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. A double-sided illumination structure, characterized in that: including reflecting structure and at least one be located reflecting structure's outside and be used for to the light source of reflecting structure projection light beam, follow the direction of projection of light beam, reflecting structure includes relative the at least one first semi-transparent semi-reflective membrane and the at least one second semi-transparent semi-reflective membrane that the light beam slope set up, first semi-transparent semi-reflective membrane with the contained angle of light beam is greater than 0, the second semi-transparent semi-reflective membrane with the contained angle of light beam equals first semi-transparent semi-reflective membrane with the contained angle of light beam.
2. The double-sided illumination structure of claim 1, wherein: the included angle between the first semi-transparent semi-reflective film and the second semi-transparent semi-reflective film is larger than 0 degrees.
3. The double-sided illumination structure of claim 2, wherein: the included angle between the first semi-transparent semi-reflective film and the second semi-transparent semi-reflective film is 90 degrees.
4. The double-sided illumination structure of claim 1, wherein: the reflective structure further comprises a first light-transmitting substrate and a second light-transmitting substrate, and the first semi-transparent and semi-reflecting film and the second semi-transparent and semi-reflecting film are respectively arranged on the first light-transmitting substrate and the second light-transmitting substrate.
5. The double-sided illumination structure of claim 4, wherein: the first semi-transparent and semi-reflective film is fixed on one side, close to the second transparent substrate, of the first transparent substrate.
6. The double-sided illumination structure of claim 5, wherein: the second semi-transparent and semi-reflective film is fixed on one side, close to the first transparent substrate, of the second transparent substrate.
7. The double-side illumination structure according to any one of claims 1 to 6, characterized in that: the light source projects a light beam through the collimating cup.
8. The double-sided illumination structure of claim 7, wherein: the included angle between the axis of the collimating cup and the plane of the first semi-transparent and semi-reflective film or the plane of the second semi-transparent and semi-reflective film is 45 degrees.
9. The double-sided illumination structure of claim 7, wherein: the light reflecting structure comprises two first semi-transparent and semi-reflective films and two second semi-transparent and semi-reflective films, the number of the light sources is four, the two first semi-transparent and semi-reflective films are arranged adjacently, the two second semi-transparent and semi-reflective films are arranged adjacently, and the four light sources project light beams to the two first semi-transparent and semi-reflective films and the two second semi-transparent and semi-reflective films respectively.
10. The double-sided illumination structure of claim 7, wherein: the LED display device further comprises a first filter film and a second filter film, wherein the first filter film is arranged on one side of the first semi-transparent semi-reflecting film, which is close to the light source, and the second filter film is arranged on one side of the second semi-transparent semi-reflecting film, which is close to the light source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320115514.6U CN219346296U (en) | 2023-01-13 | 2023-01-13 | Double-side illumination structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320115514.6U CN219346296U (en) | 2023-01-13 | 2023-01-13 | Double-side illumination structure |
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| Publication Number | Publication Date |
|---|---|
| CN219346296U true CN219346296U (en) | 2023-07-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202320115514.6U Active CN219346296U (en) | 2023-01-13 | 2023-01-13 | Double-side illumination structure |
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| CN (1) | CN219346296U (en) |
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- 2023-01-13 CN CN202320115514.6U patent/CN219346296U/en active Active
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