Light guide lamp and direct light illumination system using same

Abstract

The utility model relates to a light guide lamp and a direct light illumination system using the same, the light guide lamp comprises a container and a plurality of light guide pipes arranged in parallel, the light guide pipes are arranged in the container, and the directions of the light guide pipes and the container are roughly the same; the container is made of a solid material, the inner surface of the container has a function of reflecting or refracting light, the inner surface and / or the outer surface of each light guide pipe have a function of reflecting light, one end of the container and one end of each light guide pipe receive incident light, and the other end of each light guide pipe outputs emergent light. According to the utility model, direct light such as outdoor natural light or laser can be sent to places needing illumination in the deep of the building without local wiring or lamp configuration, so that fire hazards caused by illumination lines of the building are eliminated, and the energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to a light-guiding lamp and a direct-light lighting system using the lamp, belonging to the technical field of lighting. Background Art

[0002] Direct sunlight can be reflected by a reflector and sent into the room to form lighting. The reflector can be fixed or movable. The former is only suitable for occasions with a narrow application period, while the latter can cover the entire daytime period. This system provides natural light with a continuous spectrum and no flicker while saving energy and reducing emissions, which is beneficial to human physiological and mental health.

[0003] However, there are two problems in the actual application of the above system. The first problem is how to allow direct light to enter the interior of the building without modifying, blocking or destroying the building facade and existing windows. The second problem is how to form a large area of ​​lighting with the characteristics of natural light indoors.

[0004] For the first problem, the prior art proposes two solutions. The first solution is to install a reflector on the top outside the window; the reflector first reflects direct sunlight onto the reflector, and then the reflector reflects sunlight into the building. The disadvantage of this solution is that the reflector located at the top of the window blocks part of the lighting of the window, and increases the load requirements for the building facade or window, and increases the difficulty of high-altitude work during installation and the cost of long-term safe operation and maintenance. The second solution is to install the reflector in the space below the window on the facade, so that it can directly obliquely reflect sunlight into the room and fall on the indoor ceiling to form indirect lighting. The advantages of this solution are low cost and low risk, and no impact on the windows and building facades. The disadvantage is that the lighting location cannot penetrate deep into the room, and the lighting effect is poor, which cannot meet the lighting requirements of the indoor floor and work surface. In order to allow the light falling on the ceiling to shine on the ground, the prior art installs a reflector on the ceiling to bend the direction of the light downward and illuminate the ground. However, in actual application, this method was rejected by some users because the reflectors on the ceiling produced changing and moving shadows at night, which had an adverse psychological impact on indoor users. Some users even expressed disgust at the shaking light and shadows produced during the day.

[0005] Regarding the second question, after extensive questionnaire surveys, it was found that people have high requirements for the presentation of indoor daylight, which is concentrated on the optimal balance of several pairs of contradictions. The balance of the first pair of contradictions is that both high brightness and a large illumination range are required. The balance of the second pair of contradictions is that when users observe the working lamps with the naked eye, they are required to present the mottled and crystal light effect of sunlight, but also to avoid the glare of spotlights. The balance of the third pair of contradictions is that when users observe the illuminated area with the naked eye, they require that the daylight is relatively uniform, but the obvious silk-like characteristics of the light falling on the ground must be appropriately retained, so that the lighting effect looks obviously different from the uniform lighting effect of ceiling lamps, spotlights or fluorescent lamps.

[0006] In order to solve the above two problems, a scattering device for direct light needs to be installed on the ceiling to process the direct light into a form that is emitted downward and has the characteristics of natural light. Utility Model Content

[0007] Based on the problems mentioned in the background technology, the present application provides a light guide lamp and a direct light illumination system using the lamp, and the technical solutions adopted are as follows:

[0008] In the first aspect, the present application provides a light-guiding lamp, which is special in that it includes a container and a plurality of light-guiding tubes placed in parallel, wherein the light-guiding tubes are placed inside the container and have roughly the same direction as the container; the container is made of solid material, and its inner surface has the function of reflecting, refracting or scattering light, and the inner surface and / or outer surface of the light-guiding tubes have the function of reflecting, refracting or scattering light, and one end of the container and each light-guiding tube receives incident light, and the other end outputs outgoing light.

[0009] Furthermore, the container or the light guide tube can be bent, and the container is replaced by the outer walls of the light guide tube that are connected to each other.

[0010] Furthermore, an optical device capable of scattering light is installed at one end of the container or light guide tube that outputs the emitted light.

[0011] Furthermore, the container is made of a material with high thermal conductivity or heat dissipation coefficient and an artificial light source is arranged in the container, and the container is responsible for heat dissipation of the artificial light source.

[0012] On the second aspect, the present application provides a direct light lighting system, which is special in that it includes a direct light device and a light-guiding lamp; the direct light device is a reflector that can provide direct sunlight or an LED or laser generator that can provide direct artificial light, or a combination of the three; the direct light travels through a series of optical paths and then irradiates the light-guiding lamp.

[0013] Furthermore, a light transfer device is installed between the direct light device and the light-guiding lamp, and the light transfer device includes a light redirector; the light redirector uses the principle of mirror reflection, internal reflection or refraction to reflect or refract the incident light to change its direction of travel; after the light redirector receives the incident light, an outgoing light is formed, and the angle between the incident light and the outgoing light is greater than 0; the outgoing light is directed toward the light-guiding lamp or other light transfer device.

[0014] Furthermore, the light transfer device also includes a directional transmission unit, and the incident light W1 and the outgoing light W2 of the light redirector form a plane W1W2, and a series of directional projection units are arranged on a plane K perpendicular to the plane W1W2, and the plane K is between the observer and the light redirector. At this time, these directional projection units allow most of the incident light W1 to pass through and reach the light redirector, but at the same time, these directional projection units prevent the observer from observing any optical image formed by the light redirector through them.

[0015] The direct light lighting system proposed in the present application can deliver outdoor daylight or artificial direct light such as white laser to places deep inside the building that need lighting without the need for local wiring or configuration of lamps, thereby eliminating the fire hazards caused by lighting lines in the building and reducing energy consumption. The above-mentioned direct light lighting system, without affecting the lighting of the windows, makes use of light-guiding lamps to make the direct light form a crystal clear surface light source unique to sunlight in the room, and presents a wisp-like light feature in the illuminated area, thereby achieving flexible uniformity and sufficient lighting range. The light-guiding lamp proposed in the present application changes the direction of light travel in the process of light guidance, dilutes and diffuses the direct light while retaining the characteristics of the direct light, so that the illumination falls into a comfortable range suitable for the human eye, and forms a larger lighting area, which meets the requirements of modern health and green lighting. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 : A schematic diagram of the structure of the light guide lamp of the first embodiment;

[0017] Figure 2 : Schematic diagram of light scattering in Example 1;

[0018] Figure 3 : Schematic diagram of the structure of a light guide lamp with built-in LED lamp;

[0019] Figure 4 : A schematic diagram of the structure of the light guide lamp (curved) of Example 2;

[0020] Figure 5 : Schematic diagram of the situation where the outer walls of many light guide tubes are connected;

[0021] Figure 6: A schematic diagram of a direct light illumination system of Example 3;

[0022] Figure 7 : Schematic diagram of a direct light illumination system including a light transfer device according to Embodiment 4;

[0023] Figure 8 : The optical transfer device of embodiment 5;

[0024] Fig. 9 :The detailed structure of the directional projection unit contained in the light transfer device and its positional relationship with plane K. DETAILED DESCRIPTION

[0025] The present invention will be described in detail below with reference to the accompanying drawings.

[0026] Embodiment 1

[0027] A light guide lamp, such as Figure 1 As shown, it includes a container 001 and a plurality of light guides 002 placed in parallel inside the container 001 and having substantially the same direction as the container 001; the container 001 is made of solid material, the inner surface 003 of the container has a reflection or refraction function for light, the inner surface 004 of the light guide and the outer surface 005 of the light guide both have a reflection function for light, the inlet end 006 of the container 001 and each light guide 002 receives incident light, and the outlet end 007 outputs outgoing light.

[0028] like Figure 2 As shown, a beam of incident light 008 is a highly directional direct light before entering the container 001 and the plurality of light guides 002, but after entering the container 001 and the plurality of light guides 002, it undergoes continuous reflection inside the container 001 and the plurality of light guides 002 and moves forward. After multiple rotational reflections, its outgoing light 009 becomes scattered light with uniformly dispersed directions.

[0029] Preferably, in this embodiment, Figure 3 As shown, an LED light emitting chip 013 is embedded inside the inlet end 006 of the container 001, which can light up on cloudy days or at night, and the light generated by it is emitted from the outlet end 007 of the container 001 to play a role in supplementary lighting.

[0030] Embodiment 2

[0031] A light guide lamp, such as Figure 4 As shown, it includes a container 001 and a plurality of light guides 002 placed in parallel; in this embodiment, the outlet end 007 of the light guide 002 is bent downward by 90 degrees, so that the outgoing light 009 is irradiated downward. In this embodiment, a diffuser 010 is installed outside the outlet end 007, which further diffuses the outgoing light 009 and makes it more uniform. Figure 5As shown, it cuts off a section of the unbent light pipes 002 in this embodiment. Since the outer walls of the light pipes 002 that are closely arranged in parallel and connected to each other are connected, a de facto overall boundary 011 is formed. Therefore, the overall boundary 011 constitutes the upper surface portion of the container 001, which partially realizes the function of the container 001.

[0032] Embodiment 3

[0033] A direct light illumination system, such as Figure 6 As shown, it includes a direct light device 401 and a light guide lamp 402. The light guide lamp is embedded and installed above a wall 403. The direct light device 401 is a heliostat device, which tracks the sun and reflects the incident sunlight 404 and transmits it into the room through a transparent glass window 405 and reaches the light guide lamp 402. The light guide lamp 402 transmits the sunlight and passes through the wall 403 to illuminate the space behind the wall in a uniform and natural manner. In this embodiment, the light guide lamp 402 adopts Figure 1 The light guide lamp in the first embodiment shown in .

[0034] Embodiment 4

[0035] A direct light illumination system, such as Figure 7 As shown, it includes a direct light device 501, a light transfer device 502 and a light guide lamp 402. The direct light device 501 is a white laser generator, which uses electrical energy to generate white laser 503, which is emitted into the room and first reaches the light transfer device 502, and then reaches the light guide lamp 402. In this embodiment, the light transfer device 502 is as shown in FIG. Figure 8 The light transfer device in the fifth embodiment shown; the light guide lamp 503 adopts Figure 4 The light guide lamp in the second embodiment shown in .

[0036] Embodiment 5

[0037] like Figure 8 As shown, it is a preferred embodiment of a light transfer device, including a light redirector 301 and a directional transmission unit 302. In this embodiment, the light redirector 301 is a plane mirror, which reflects the incident light 303 (i.e., W1) to change its direction of travel and form an outgoing light 304 (i.e., W2). The angle between W1 and W2 is greater than 0. As shown in the figure, W1 and W2 form a plane W1W2, and a plane K is perpendicular to the plane W1W2. On the surface represented by plane K, a series of directional projection units 302 are arranged. These directional projection units 302 are arranged on the optical path of the incident light 303 (i.e., W1). The eyes 309 of the indoor user (observer) and the light redirector 301 are separated by the directional projection units 302 distributed on plane K. As shown Fig. 9As shown in , in this embodiment, each directional projection unit 302 is composed of a transparent glass block, which has a corrugated surface 305 and a plane 306 perpendicular thereto, and the plane 306 is arranged to be perpendicular to the incident light 303 (ie, W1). Figure 8 As shown, the incident light 303 (i.e., W1) passes through the plane 306 perpendicular to it and reaches the light deflector 301; at the same time, affected by the scattering effect of the corrugated surface 305 on light, any light emitted by the light deflector 301 cannot reach the observer's eyes 309 located below the plane K in an imaging manner, so the observer cannot see the optical image formed by the light deflector 301. Due to the above arrangement, although the indoor observer can see the directional projection unit 302 when looking up, the direct light emitted by the light deflector 301 cannot be seen because the line of sight is interfered by the corrugated surface 304, so it is impossible to see any optical image that it can form. This is very important for the nighttime lighting environment of indoor residential buildings, because it avoids the psychological impact of swaying human shadows in a dim environment on people, which is in line with traditional health and aesthetic views.

[0038] The light-emitting effect of the light-guiding lamp of the present application can meet the requirements of users, namely: it has both high brightness and a large illumination range, retains the mottled and crystal-clear illumination effect of sunlight and avoids the glare of the point-like light source of spotlights, makes the emitted daylight more uniform and can produce wispy light characteristics that are completely different from artificial light in the illumination area.

[0039] The lighting system proposed in the present application is not only capable of processing direct sunlight from heliostats, but also direct artificial light, such as white lasers from laser generators or direct light from LED modules. This is because whether it is direct sunlight or artificial direct light, its essence is electromagnetic waves in the visible frequency band with good directionality, and its optical properties are consistent. After artificial direct light enters the lighting system proposed in the present application, it can be used as a supplementary light source for direct sunlight to provide lighting on cloudy days or at night. In addition, the present application proposes that the light guide lamp can also be provided with an embedded LED or laser generator, which uses the heat dissipation function of the light guide lamp itself to reduce the manufacturing cost of artificial light sources, reduce the volume of LED modules, and improve the flexibility of system applications.

[0040] Therefore, the direct light lighting system proposed in the present application solves the technical problems faced by the prior art. Under the premise of not affecting the lighting of the windows, direct light is used to form the crystal clear surface light source intuitive feeling and wispy light characteristics unique to sunlight in the room, and achieves better uniformity and a larger lighting area. The system can also avoid the formation of reflections of people and objects in the room on the ceiling during the transmission and utilization of direct light, eliminating the psychological impact of moving light and shadow on some people who are sensitive to it, which is in line with traditional aesthetics and health viewpoints, and meets the requirements of modern health and green lighting.

[0041] The present invention is not limited to the embodiments discussed above. The above description of the specific embodiments is intended to describe and illustrate the technical solutions to which the present invention relates. Obvious changes, substitutions or combinations based on the teachings of the present invention should also be considered to fall within the scope of protection of the present invention. The above specific embodiments are used to disclose the best implementation method of the present invention so that a person of ordinary skill in the art can apply the various embodiments of the present invention and various alternatives to achieve the purpose of the present invention.

Claims

1. A light guide lamp, characterized in that: The light-guiding lamp comprises a container and a plurality of light-guiding tubes placed in parallel, wherein the light-guiding tubes are placed inside the container and have substantially the same direction as the container; the container is made of solid material, and its inner surface has the function of reflecting, refracting or scattering light; the inner surface and / or outer surface of the light-guiding tubes have the function of reflecting, refracting or scattering light; one end of the container and each light-guiding tube receives incident light, and the other end outputs outgoing light.

2. A light guide lamp as claimed in claim 1, characterized in that: The container or light guide can be bent, the container being replaced by the outer wall of the light guide being continuous with each other.

3. The light guide lamp according to claim 1 or 2, characterized in that: An optical device capable of scattering light is installed at one end of the container or light guide tube for outputting the emitted light.

4. The light guide lamp according to claim 1, characterized in that: The container is made of a material with a certain thermal conductivity or heat dissipation coefficient and an artificial light source is arranged in the container, and the container is responsible for the heat dissipation of the artificial light source.

5. A direct light illumination system, characterized in that: include: A direct light device and a light guide lamp as claimed in any one of claims 1 to 4; The direct light device is a reflector capable of providing direct sunlight, or an LED or laser generator capable of providing direct artificial light, or a combination of the three; the direct light travels through a series of light paths and then irradiates the light guide lamp.

6. A direct light illumination system as claimed in claim 5, characterized in that: It also includes a light transfer device located between the direct light device and the light-guiding lamp, and the light transfer device includes a light redirector; the light redirector uses the principle of mirror reflection, internal reflection or refraction to reflect or refract the incident light to change its direction of travel; after the light redirector receives the incident light, an outgoing light is formed, and the angle between the incident light and the outgoing light is greater than 0; the outgoing light is directed toward the light-guiding lamp or the light transfer device.

7. A direct light illumination system as claimed in claim 6, characterized in that: The light transfer device included in the direct light illumination system also includes a directional transmission unit; the incident light W1 and the outgoing light W2 of the light redirector contained in the light transfer device form a plane W1W2, and a series of directional projection units are arranged on a plane K perpendicular to the plane W1W2, and the plane K is between the observer and the light redirector. At this time, these directional projection units allow most of the incident light W1 to pass through and reach the light redirector, but at the same time, these directional projection units prevent the observer from observing any optical imaging formed by the light redirector through them.

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