JP2001357703A - Illumination device having rendering effect - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an illumination device having a rendering effect wherein the light from an LED can be radiated over a wide range and wherein an unevenness in color can be suppressed to effectively constitute various colors. SOLUTION: A light emission part 3 made of the LED(light emitting diode) which can radiate underwater in a bath is made to have a concave-shaped lens 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an effect lighting device for effecting lighting in water in a bathtub.

[0002]

2. Description of the Related Art An effect lighting device comprising LEDs is provided on a wall surface of a bathtub with a transparent partition interposed therebetween, and an effect lighting device capable of irradiating light from the LED into the water of the bathtub to perform underwater lighting is invented. Have already filed an application, but there is a problem that the light from the LED has directivity and can be irradiated only in a limited range, and the LED of each color of red, green and blue
Simply arranging the LEDs in parallel has a problem that when LEDs of each color emit light, color unevenness occurs.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and is capable of irradiating light from an LED over a wide area, suppressing color unevenness, and providing an effective method. The first gist of the present invention is to provide an LED (light emitting diode) capable of irradiating light in water in a bathtub with a concave lens shape. That is. A second gist is that the light emitting section is provided in a convex shape from the inner wall surface of the bathtub toward the inside of the bathtub. Further, a third gist is that in an effect lighting device including a light emitting unit configured to arrange red, green, and blue LEDs (light emitting diodes) in close proximity and to emit various colors, Each blue LE
D is arranged alternately. Further, a fourth gist is that a red, green, and blue LEDs (light emitting diodes) are arranged in close proximity to each other in an effect lighting device provided with a light emitting unit configured to emit various colors. It is arranged in the center, and green and blue LEDs are alternately arranged in a ring around the central portion. The fifth gist is that the light emitting section is subjected to grain processing to form fine irregularities.

[0004]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a bathroom. A bathroom 1 is provided with a bathtub 2, and light-emitting units 3 and 3 are provided on a side wall surface of the bathtub 2. Further, a bubble spout 14 is provided at the bottom of the bathtub, and air bubbles are ejected from the bubble spout 14 into the bathtub 2 via a tube 18 from a foam rhythm pump 17 installed behind the ceiling of the bathroom. And a control box 1 above the ceiling of the bathroom.
6 is provided, and the illuminator 15 and the remote controller 19 in the bathroom are provided.
When the light is emitted from the light emitting units 3 and 3 into the bathtub 2, the bubble rhythm pump 17 is activated,
Is controlled by the control box 16 so as to be dark.

As shown in the enlarged sectional view of FIG. 2, the light emitting section 3 has a packing 9 and a triangular packing 10 interposed in an opening 2a formed through the side wall of the bathtub 2 and tightens a nut 11 to form a watertight state. A plurality of LEDs 6, 7, 8 are housed in a case body 4 attached to the case body. A concave lens 5 is provided at an end of the case body 4, and the concave lens 5 is provided inside the inner wall surface 2b of the bathtub. The surface has a convex surface 5b bulging into the bathtub, a concave surface 5a is formed on the back side, and the shape is such that the central portion in the vertical direction is thin and the thickness increases in the vertical direction. ing.

In such a configuration, the LED 6,
When the lamps 7 and 8 are turned on, the light is refracted by the concave lens 5 and dispersed in a wide range as shown by the arrow, and is irradiated into the water in the bathtub 2. Therefore, a wider range than before can be irradiated with the light of the LEDs 6, 7, and 8, and the light from the LED reaches the corners in the bathtub 2 satisfactorily. In addition, if the concave surface 5a or the convex surface 5b of the concave lens 5 is subjected to graining using a mold or the like to form fine irregularities, light can be scattered by the fine irregular surfaces, and light can be spread over a wider range. At the same time, LE
The glare caused by directly viewing the light of D6, 7, 8 can be reduced.

[0007] A red LED, a green LED,
When the blue LEDs are combined and arranged in the case body 4, as shown in the front view of FIG. 3, red, green, and blue LEDs are arranged in a triangular shape at the center, and red, green, and blue are arranged on the outer peripheral side.
By arranging the green and blue LEDs alternately in a ring shape, when each LED is turned on, the red, green and blue lights are satisfactorily mixed to eliminate color unevenness. In addition, when all of red, green, and blue are turned on, good white illumination can be obtained. In addition, red, green, and blue LEDs can be appropriately turned on to form light of various colors. In each case, light of each color is mixed well, and color unevenness is suppressed.

Further, as shown in FIG. 4, a red LED is arranged at the center, and green and blue LEDs are
Are arranged alternately in a ring shape, and color light can be emitted without causing color unevenness. In particular, by surrounding the most anxious red with green and blue colors, light of various colors can be irradiated more effectively and mixed. FIG. 5 is a side view of FIG. 4 and shows a state in which light from the LEDs is mixed.

[0009]

According to the effect lighting device of the present invention, the light emitting portion of the LED (light emitting diode) capable of irradiating light into the water in the bathtub has a concave lens shape, so that the directional LE is provided.
The light of D can be refracted by the concave lens to irradiate a wide range, and a wide range of underwater in the bathtub can be satisfactorily illuminated.

[0010] Further, since the light emitting portion is provided in a convex shape from the inner wall surface of the bathtub toward the inside of the bathtub, light from the LED can be irradiated to a wide range in the bathtub.

Further, in an effect lighting device in which red, green, and blue LEDs (light emitting diodes) are arranged close to each other to emit various colors, the red, green, and blue LEDs are alternately arranged. With this configuration, various colors can be formed by mixing light from the LEDs of each color well and preventing color unevenness.

Further, in an effect lighting device in which red, green, and blue LEDs (light emitting diodes) are arranged close to each other so as to be able to emit various colors, the red LEDs are arranged in a central portion, and around the red LEDs. By arranging the green and blue LEDs alternately in a ring shape, various colors can be configured by surrounding the red, which is most intuitively perceptible, with other blue and green.

In addition, the light emitting portion is subjected to a graining process to form fine irregularities, thereby scattering light, allowing light to reach a wider area, and reducing glare caused by directly looking at the LED. can do.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram of a bathroom.

FIG. 2 is an enlarged cross-sectional configuration diagram of a light emitting unit provided on a side wall surface of a bathtub.

FIG. 3 is a front configuration diagram illustrating an arrangement configuration of LEDs of a light emitting unit.

FIG. 4 is a front view showing another arrangement of LEDs.

FIG. 5 is a side view of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bathroom 2 Bathtub 2a Opening 2b Inner wall surface 3 Light emitting part 4 Case body 5 Concave lens 5a Concave surface 5b Convex surface 6,7,8 LED 9,10 Packing

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) // F21W 131: 308 F21P 1/02 Z F21Y 101: 02 F21S 1/02 G

Claims (5)

[Claims] An LED capable of irradiating light into water in a bathtub
An effect lighting device, characterized in that a light emitting portion formed by a (light emitting diode) has a concave lens shape. 2. The effect lighting device according to claim 1, wherein the light emitting section is provided in a convex shape from the inner wall surface of the bathtub toward the inside of the bathtub. 3. Red, green and blue LEDs (light emitting diodes)
Are arranged in close proximity to each other and provided with a light emitting unit configured to emit various colors, wherein the red, green, and blue LEDs are alternately arranged. apparatus. 4. Red, green and blue LEDs (light emitting diodes)
Are arranged in close proximity to each other and provided with a light emitting unit configured to emit various colors, wherein the red LED
Is arranged in the center portion, and green and blue LEDs are alternately arranged in a ring shape around the central portion. 5. The effect lighting device according to claim 1, wherein the light emitting portion is subjected to graining to form fine irregularities.