JP2858009B2 - Fluctuation lighting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an analog whose magnitude changes according to 1 / f fluctuation according to a numerical sequence from a 1 / f numerical sequence generating circuit for generating a 1 / f numerical sequence. The present invention relates to a fluctuation illuminating device in which the current changes based on a signal, and the illuminance of the illumination changes with time in response to fluctuation having a spectrum inversely proportional to the frequency f.

[Conventional technology]

Conventional illuminations have a constant illuminance or a stepwise or stepless change in illuminance by means of illuminance switching.However, a 1 / f numerical sequence that generates a 1 / f numerical sequence The current changes based on an analog signal whose magnitude changes according to the 1 / f fluctuation according to the numerical sequence from the generation circuit, and the illuminance changes over time corresponding to the fluctuation having a spectrum inversely proportional to the frequency f. There was nothing to do.

[Problems to be solved by the invention]

As before, if the illuminance is constant over time, the illumination simply serves to brighten the surroundings and does not otherwise give the occupant a special comfort. Was.

Toshimitsu Musha, the inventor of the present application, published a journal of the Japan Society of Applied Physics, 19
He published a paper on "Biological information and 1 / f fluctuation" on pages 427-435 in 1965, and published a paper on "Biological control and 1 / f fluctuation" in Vol. 50, No. 6, 1984, Japan Society of Precision Machinery. ing. The main point of the above paper is that 1 / f fluctuation gives a comfortable feeling to humans, and the reason that 1 / f fluctuation gives a comfortable feeling is that the fundamental rhythm fluctuation of the human body is inversely proportional to the frequency f. (1 / f spectrum). Put another way, humans get tired of receiving the same stimulus continuously. Conversely, a stimulus that changes too rapidly is accompanied by discomfort. It has been empirically confirmed that the fluctuation phenomenon in the natural world having both characteristics gives a comfortable feeling to humans. ].

For example, light fluctuation phenomena such as sunlight falling onto the ground through the sunlight through trees and the gaps between clouds also give a feeling of comfort to humans.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fluctuation illuminating device that artificially creates a fluctuation phenomenon of light.

[Means for solving the problem]

In order to achieve the above object, the present invention provides a random number generation circuit 8, a linear conversion circuit 9, and a random number sequence from the random number generation circuit 8, the N coefficients a ₁ from the linear conversion circuit 9. , A ₂ ... _An are sequentially converted to perform a linear conversion to generate a 1 / f numerical sequence, and a 1 / f numerical sequence generating circuit 10 and 1 according to the numerical sequence from the 1 / f numerical sequence generating circuit 10. a D / A converter 11 that obtains an analog signal whose magnitude changes according to the / f fluctuation, and a current that changes based on the analog signal whose magnitude changes according to the 1 / f fluctuation obtained by the D / A converter 11 Thus, a fluctuation illuminating device including a light source 12 whose illuminance is changed.

[Action]

According to the fluctuation illumination device having the above-described configuration, according to a numerical example from the 1 / f numerical sequence generating circuit that generates the 1 / f numerical sequence, an analog signal whose magnitude changes according to the 1 / f fluctuation is obtained. The current changes based on the analog signal that changes in magnitude according to the 1 / f fluctuation obtained by the A converter 11, and the illuminance obtained from the lighting apparatus corresponds to the fluctuation having a spectrum inversely proportional to the frequency f. As time elapses, the light fluctuates, such as, for example, sunlight falling from the leaves of the trees or sunlight falling on the ground through the gaps between clouds, and can give the occupants a sense of comfort.

〔Example〕

FIG. 1 shows the principle related to the present invention.
1 is a power supply circuit, 2 is a lighting device as a lighting fixture, 3 is a fluctuation current generating circuit that changes the current flowing through the lighting lamp 2 with the passage of time corresponding to the fluctuation having a spectrum inversely proportional to the frequency f. In this case, a current modulated by an output signal of the fluctuation current generation circuit 3 is supplied to the illumination lamp 2 connected in series to the power supply circuit 1 for illumination. Therefore, the illumination of the illumination lamp 2 changes with the passage of time corresponding to the fluctuation having a spectrum inversely proportional to the frequency f.

Another principle related to the present invention shown in FIG. 2 is that a fluctuation current generating circuit 3 'is provided in a power supply circuit 1,
Since the voltage between the two terminals 1a and 1b of the power supply circuit 1 changes over time in accordance with the fluctuation (1 / f fluctuation) having a spectrum inversely proportional to the frequency f, the current flowing through the illumination lamp 2 also increases. Accordingly, the illumination of the lamp 2 will change over time, corresponding to fluctuations having a spectrum inversely proportional to the frequency f.

FIG. 3 shows an embodiment of the fluctuation current generating circuit 3 '. The fluctuation current generating circuit 3' has a frequency f.
Generates a fluctuation signal with a spectrum inversely proportional to
A ROM 3a, a D / A converter 3b for converting a digital signal from the ROM 3a into an analog signal, and an amplifier 3c for amplifying the analog signal from the D / A converter 3b. Stores a numerical sequence having 1 / f fluctuation in advance.

FIG. 4 shows a prior art relating to the present invention, wherein 4 is a computer having a ROM storing a numerical sequence having 1 / f fluctuation, and 5 is numerical sequence information having 1 / f fluctuation from the computer 4. Is converted into an analog signal whose magnitude changes according to the 1 / f fluctuation. The D / A converter 6 converts the voltage modulated by the analog signal converted by the D / A converter into 1 / f.
A power supply circuit 7 that is changed according to f fluctuations is a lighting fixture connected to the power supply circuit 6 whose voltage is changed according to the 1 / f fluctuations.

FIG. 5 shows another prior art related to the present invention, in which 13 is a ROM storing a 1 / f numerical sequence, and 14 is this ROM 13.
A sequential readout circuit 15 for sequentially reading out the numerical value sequence stored in the numerical value sequence; a D / D 15 for obtaining an analog signal whose magnitude changes in accordance with the 1 / f fluctuation in accordance with the numerical value sequence read out by the numerical value sequential readout circuit 14; The A converter 16 is a light source whose illuminance is changed by an analog signal whose magnitude changes according to the 1 / f fluctuation obtained by the D / A converter 15.

Although not shown, the illuminating lamp 2, the luminaire 7, and the light source 16 are a number of lamps attached to an electronic display panel, and the illuminance is temporally or spatially 1 / f.
A fluctuation illuminating device can be provided which is changed so as to have fluctuation (where f is the frequency of the fluctuation of the period T).

Although not shown, a large number of colored light bulbs are arranged in the vertical direction and the horizontal direction of the two-dimensional electric display panel as the lighting lamp 2, the lighting fixture 7, and the light source 16. In addition, the arrangement of the colored light bulbs relates the quantified colors to the colors of the palette in which the numerical values are arranged in the order of the numerical values. Coloring of the light bulb is selected so as to cause 1 / f fluctuation in color. In addition, the illuminance of the light bulb on the lightning board is 1 /
f Gives illuminance change according to fluctuation.

Further, when the image displayed by the colored light bulb is movable in the left-right direction or the up-down direction of the electric display panel, the color image or illuminance change due to this movement is 1 / f.
Move so as to have fluctuation.

FIG. 6 shows an embodiment of the fluctuation illuminating device according to the present invention, in which 8 is a random number generation circuit, 9 is a linear conversion circuit, and 10 is a random number sequence from the random number generation circuit 8 which is converted from the linear conversion circuit 9 by the linear conversion circuit 9. performs linear conversion by sequentially calculating the n coefficients _{a 1, a 2 ... a n} , 1 / f numerical sequence 1 / f numerical sequence generation circuit for generating, the 1 / f numerical sequence generator 10 11 A D / A converter for obtaining an analog signal whose magnitude changes according to the 1 / f fluctuation according to the numerical sequence from, and 12 is an analog signal whose magnitude changes according to the 1 / f fluctuation obtained by this D / A converter 11 Is a light source in which the illuminance is changed by changing the current based on.

By the fluctuation lighting device having the above-described configuration, according to the numerical sequence from the 1 / f numerical sequence generating circuit 10 for generating the 1 / f numerical sequence, the D / A whose magnitude changes according to the 1 / f fluctuation.
Since the current changes based on the analog signal obtained from the converter 11 and the illuminance obtained from the lighting apparatus changes over time corresponding to fluctuation having a spectrum inversely proportional to the frequency f, for example, The light fluctuates like sunlight falling on the ground through the sunbeams from the leaves of the trees or through the gaps between clouds, and can give the occupants a sense of comfort.

〔The invention's effect〕

By providing the fluctuation illumination device as described above according to the present invention, D / A whose magnitude changes according to the 1 / f fluctuation according to the numerical sequence from the 1 / f numerical sequence generating circuit that generates the 1 / f numerical sequence. The current changes based on the analog signal obtained from the converter, and the illuminance obtained from the light source in which the changing current flows changes over time corresponding to the fluctuation having a spectrum inversely proportional to the frequency f. Therefore, in natural phenomena, it is possible to obtain, for example, a sunshine through a leaf of a tree or a fluctuation of light such as sunlight falling on the ground through a gap between clouds, thereby giving a resident a sense of comfort.

[Brief description of the drawings]

FIG. 1 is a diagram showing the principle related to the present invention, FIG. 2 is a diagram showing another principle related to the present invention, and FIG. 3 is an embodiment of a prior art fluctuation current generating circuit related to the present invention. FIG. 4 is a diagram showing a prior art related to the present invention;
FIG. 5 is a diagram showing another prior art related to the present invention, and FIG. 6 is a diagram showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... Power supply circuit 2 ... Illumination lamp 3, 3 '... Fluctuation current generation circuit 3a ... ROM 3b ... D / A converter 3c ... Amplifier 4 ... Computer 5 ... D / A converter 6 ... Power supply circuit 7 ... Lighting equipment 8 ... Random number generation circuit 9… Linear conversion circuit 10… 1 / f number sequence generation circuit 11… D / A converter 12… Light source 13… ROM storing 1 / f number sequence 14… Numerical sequence readout circuit 15… D / A converter 16 ... light source

Continuation of front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H05B 37/02

Claims (1)

(57) [Claims] 1. A random number generation circuit, a linear conversion circuit, and a random number sequence from the random number generation circuit
The 1 / f numerical sequence generator that performs linear conversion by sequentially calculating the coefficients a ₁ , a ₂ … a _n to generate a 1 / f numerical sequence, and the numerical value from the 1 / f numerical sequence generator D / A to obtain an analog signal whose magnitude changes according to 1 / f fluctuation according to the column
A fluctuation, characterized by comprising a converter and a light source whose current changes based on an analog signal whose magnitude changes according to the 1 / f fluctuation obtained by the D / A converter, and whose illuminance changes. Lighting equipment.