WO2015079989A1

WO2015079989A1 - Clear weather skylight lamp

Info

Publication number: WO2015079989A1
Application number: PCT/JP2014/080598
Authority: WO
Inventors: 高資大浦
Original assignee: 高資大浦
Priority date: 2013-11-30
Filing date: 2014-11-19
Publication date: 2015-06-04
Also published as: JP2015106515A

Abstract

Provided is a skylight lamp for achieving, through microcomputer control, a natural light-change such as from a skylight, and a color and a brightness tuned to a biological rhythm. Under supply from a commercial power source, a main body control unit (3) equipped with a microcomputer calculates the times for sunrise and sunset to adjust the power supplied to an energy-saving illuminator (4) that uses an LED or an organic EL and to reproduce the continuously changing color and brightness of the sky in the morning and at dusk, in addition to maintaining the needed brightness during daytime and providing illumination with a brightness and a color tuned to a biological rhythm at night.

Description

Clear skylight lamp

The present invention relates to indoor lighting that uses a luminaire to realize a simulated skylight and also performs night-time lighting.

Various techniques have been developed to supplement the lighting function in windowsless interiors such as corridors.

By using a light duct, there are some which are directed from the roof to an arbitrary room to obtain daylight. (For example, Patent Document 1)

Some solar cells are installed on the roof, their power is connected to the LED lamp, and a natural skylight is realized by following natural light. (For example, Patent Document 2)

There are also street lights that are different from skylights and that realize accurate lighting control that is not influenced by the weather, by using a microcomputer to determine the lighting control accurately for day and night. (For example, Patent Document 3)

In the field of indoor lighting, there are some which divide the light into time zones of daytime, nighttime and late night, and change colors for the purpose of adjusting to biological rhythm. (For example, Patent Document 4)

JP, 2009-176606, A JP 2011-108494 A JP, 2012-094273, A JP, 2009-080980, A

Skylights using light ducts can be used only in rooms and corridors just under the roof, require a large space in the attic, and require extensive work, causing problems in terms of design freedom and cost.

In addition, although what uses a solar cell can change the brightness of LED lighting proportionally according to the amount of power generation, it is influenced by the direction in which the solar cell is installed, and it is further to the solar panel In the morning and evening when the irradiation angle of the sunbeams becomes shallow, there is a problem that the amount of power generation is greatly reduced.

The accurate judgment of day and night by the use of a microcomputer has already been applied to street lights, but this is only dividing day and night, and in the sunrise and sunset time zones, the brightness and color of the illumination are continuous There is a problem that is not supposed to change.

There is already a lighting device that changes the lighting color according to the biological rhythm, but only switching the day and night with a timer is not considered to change the color switching time according to the length of the day There is.

Therefore, an object of the present invention is to provide a blue sky skylight lamp which has a high degree of freedom of installation, controls lighting time and brightness to resemble skylights, and has an illumination color suited to biological rhythm.

When the blue sky skylight lamp 1 according to claim 1 uses an LED, the energy saving lighting fixture 4 including the daylight white LED 12 and the bulb color LED 13 whose brightness can be adjusted, and the output of the daylight white LED 12 and the bulb color LED 13 Based on the data of the dimmer 11 which can adjust each independently, the data holding unit 7 holding data on the movement of the sun of each part of the year, and specifying the sunrise and sunset times of the day based on the data of the data holding unit 7 The present invention is characterized in that it has a sunrise date entry time specifying unit 6, a color tone / light amount calculating unit 9 that calculates brightness and color that change with time, and the light control unit 11 that controls according to the calculated brightness and color.

When using the organic EL 16, the blue sky skylight 1 according to claim 2 can adjust the output and the color of the energy saving type lighting fixture 4 provided with the brightness and the organic EL whose color can be changed from sky blue to light bulb color The dimmer 11 is characterized in that it operates in the same manner as the first embodiment except for the first aspect.

The blue sky skylight lamp 1 according to claim 3 is sky blue by changing the plastic mold of the daylight white LED 12 from transparent to sky blue when importance is attached to color tone over energy saving performance when using LEDs for the energy saving type lighting fixture 4 The lighting of the

The blue sky skylight lamp 1 according to claim 4 divides the night into a bed and a midnight at a preset bedtime Tb, and the midnight is a suitable dim light (about 2 luxes) and the cloud is slightly bright (about 10 luxes) It is characterized in that it illuminates so that even eyes that are used to indoor lighting can see it.

According to the blue sky skylight lamp described in claim 1, it is possible to reliably illuminate the indoor area with the brightness specified in advance or more from sunrise to sunset, which is calculated by calculation, regardless of the season.
In addition, by changing the brightness of the LED gradually in the morning and in the evening according to the fine weather outdoors, the sense of incongruity when using a single energy-saving lighting fixture is eliminated, and by using a light guide plate, a surface light source The lighting can be closer to the skylight.
Furthermore, it can be adapted to the biological rhythm by switching between daylight color LEDs and light bulb color LEDs at night.

According to the blue sky skylight lamp according to claim 2, when organic EL is used, the same effect as when LED is used can be expected. And, in the case of the organic EL, since the light emission of various colors and the surface light emission, the system configuration can be simplified. On the other hand, the disadvantages of organic EL are the poor energy saving effect and the high cost.

According to the blue sky skylight lamp according to claim 3, even when using a daylight white LED as a light source, illumination with the same color tone as the skylight is possible by using a color conversion filter such as using a sky blue plastic mold The lighting can be closer to the skylight.

According to the blue sky skylight lamp according to claim 4, since the time zone of the lamp is illuminated with about 10 luxes, the brightness is sufficient for the eyes used to indoor lighting if the place is a hallway just moving This saves time and effort on turning on and off the lighting.

Hereinafter, an embodiment of the clear sky window lamp 1 will be described with reference to FIGS. 1 to 5. The clear skylight 1 is mainly installed in a residential building 2 such as an apartment, and it is a hallway that can not take in external light in the daytime, and it is natural light like skylight even though it is artificial light While making it feel, it is considered as the illumination color according to the biological rhythm at night.

As shown in FIG. 1, the clear skylight lamp 1 is installed in a corridor or the like where outside light does not enter the building 2, receives power supply from a commercial power source, and is connected to the main control unit 3 and the energy saving lighting fixture 4 connected thereto. Configured The main control unit 3 includes a microcomputer 5, a key input unit 8 and a dimmer 11.

As shown in FIG. 2, the microcomputer 5 is composed of a sunrise date entry time specifying unit 6, a data holding unit 7, a color tone / light amount calculation unit 9, and a clock unit 10.

The sunrise time entry time specifying unit 6 uses the following calculation method described in the “Surface inflow estimate table of each place” in the science chronology (non-patent document 1), and the residence in the residence input from the key input unit 8 It is based on calculating sunrise and sunset times. However, since To, M, N, n are a large amount of table data, an approximate expression that can be easily processed by a microcomputer may be used.
The data holding unit 7 holds parameters of these large amounts of tabular data or approximate expressions.
The time of sunrise (Tr) is: Tr = To + M-N * n
The sunset time (Ts) is Ts = To + M + N * n
To: Daily sunrise or sunset time in Tokyo M: Correction value that changes depending on the longitude of the residence area N: Correction value that changes depending on the latitude of the residence area n: Coefficient that changes depending on the day length of the day

The color tone / light quantity calculation unit 9 sends a lightness and color signal according to the current time of the clock unit 10 to the dimmer 11 based on the sunrise time setting time provided from the sunrise time setting unit 6.

When using LED for energy saving type lighting fixture 4, after using sky color filter 14 on daylight color LED 12 using two kinds of LED of daylight color LED12 and light bulb color LED13, the light of light bulb color LED13 is changed from daylight color to sky blue And light guide plate 15 to illuminate a corridor or the like. The dimmer 11 changes the color of the energy-saving lighting device 4 by dimming both LEDs independently.
On the other hand, when using organic EL16, the light emission is used as it is as illumination. The dimmer 11 controls the color and brightness of the organic EL 16.

The brightness of sunrise and sunset times is 300 lux according to the “Indication of illuminance and brightness” in the handbook 2006.4 to 2008.4 (Non-Patent Document 2), and the general indoor brightness (JIS Z9110 (Non-patent document 3) According to "Table 17-Housing part 1", it is brighter than 100 luxes. Therefore, in the daytime zone from sunrise to sunset, it is appropriate for the energy-saving lighting fixture 4 to be illuminated at a brightness that meets the indoor lighting standard, not to the brightness of the outdoor.

Therefore, the brightness of the illumination in the daytime zone from sunrise to sunset is to be illuminated with a constant brightness according to the illumination standard of JIS Z 9110, and the brightness is specified in advance by the resident as shown in FIG. It can be adjusted to the brightness L.
However, since the actual skylight illuminates the room in proportion to the brightness of the sky, as shown in FIG. 5, the atmosphere of the skylight has the atmosphere of the skylight by giving a certain change without being proportional to the brightness of the sky. There is also a way to
The former is advantageous from the viewpoint of energy saving, and the latter is advantageous in that it makes natural light feel, so it is possible to make a choice according to the preference of the resident.

According to the website of the National Astronomical Observatory of Japan, the duration of regular twilight is about 30 minutes in Tokyo, and there is a difference of about 10% between Hokkaido and Okinawa with different latitudes, and there is a difference of 10% in summer and winter compared to spring and autumn And
Therefore, when the brightness of the sky in the regular light time zone was actually measured, it became brighter geometrically from dim light in about 20 minutes before sunrise, and geometrically numerical in about 20 minutes from about 5 minutes after sunset. The measurement result of getting dark and dim was obtained.
Therefore, as shown in FIG. 4 or FIG. 5, the energy saving lighting fixture 4 geometrically changes from 2 lux to specified brightness in 20 minutes from before sunrise, and in specified brightness in 20 minutes from 5 minutes after sunset. The basic principle is to change geometrically from about 10 luxes.
In addition, about the time shown here (5 minutes and 20 minutes), in the case of Hokkaido and Okinawa with slightly different latitudes or in summer and winter, a correction of about 10% may be applied.

When using an LED, as shown in FIG. 6, the change in color turns on the day white LED 12 and gradually darkens the day white LED 12 while the light bulb color LED 13 gradually By lighting it, it changes from noon white to bulb color. The time zone in which the color is gradually changed is matched with the time zone in which the brightness is changed, so that there is no sense of discomfort.
On the other hand, in the case of the organic EL 16 in which its own emission color can be changed, light control is performed so as to simply change from sky blue to bulb color.
The same applies to sunrise.

From 25 minutes after sunset, the energy-saving lighting fixture 4 emits light at about 10 lux until a preset bedtime Tb.

The present invention also includes the case where only the change in brightness is performed in the above light adjustment control, and the change in color is omitted.

Furthermore, the embodiment of the present invention is not limited to the above-described embodiment, and the scope of the concept of the present invention is a case where a combination of a white LED and a blue filter is used using a blue LED which will be developed in the future. It goes without saying that changes can be made as appropriate without departing from the above.

The skylights 1 according to the present invention can not be installed in apartment buildings as apartments, high-insulated detached houses, houses in snowy countries with snow on the roof, etc. A skylight can not be installed using energy saving type lighting fixtures 4 It will be realized. In particular, this lamp does not require a sensor for detecting external light, expresses natural changes in light of the morning and evening, and is a pseudo-light that is easy to install and has a high degree of completeness by using illumination colors according to biological rhythms. It functions as a skylight.

1 fine skylight lamp 2 building 3 main body control part Tr sunrise time Ts sunset time Tb preset bedtime time L brightness specified by resident in advance

Electrical wiring schematic of a house with a clear skylight lamp Block diagram of control unit using LED lamp Block diagram of control unit using organic EL lamp Temporal change of illuminance of clear skylight 1 Temporal change of illuminance of clear sky lamp 2 Temporal change of color of clear skylight

Claims

When an LED is used, a luminaire including a daylight white LED and a bulb color LED whose brightness can be adjusted, and a dimmer capable of independently controlling the output of the daylight white LED and the bulb color LED of the luminaire, A data holding unit that holds data on the movement of the sun in various parts of the year, a sunrise time specifying unit that specifies the sunrise and sunset times of the day based on the data of the data holding unit, brightness and color changing with time A fine skylight lamp comprising: a color tone / light amount calculation unit for calculating the light amount; and the dimmer controlled according to the calculated brightness and color.
In the case of using an organic EL, a lighting fixture having an organic EL capable of adjusting the brightness and changing the color from sky blue to a light bulb color and a dimmer capable of adjusting the brightness and the color are different from claim 1 only. The other day is the same as the clear skylight lamp which is characterized by the same operation.
When using LEDs in lighting fixtures, when emphasizing color tone rather than energy saving, skylight lighting is achieved by using a sky blue filter such as changing the plastic mold of a day white LED from transparent to sky blue. Skylight lamp.
The night is divided into the nighttime and the late night at bedtime Tb, and the nighttime is dimmed accordingly (approximately 2 luxes), the 宵 is slightly brightened (approximately 10 luxes), and even with eyes that are used to indoor lighting A clear skylight lamp characterized by making it visible.