JP2006301363A - Illuminating apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a simply constituted illuminating apparatus capable of illuminating illumination images of a plurality of various patterns with uniform illuminance. <P>SOLUTION: The illuminating apparatus includes; a plurality of LEDs 12a to 12e; a fly eye lens 23 with a plurality of lens parts 23b for emitting the entering light beams outgoing from respective LEDs 12a to 12e to a specified illumination area in an overlap state; a light shielding plate 38 for limiting the optical paths of the outgoing light beams from respective LEDs 12a to 12e and inhibiting that the outgoing light beams from various LEDs are made incident on the same lens part 23b; and a light shielding mask 24 with light-transmissive opening parts corresponding to respective lens parts 23b of the fly eye lens 23. The respective light-transmissive openings formed in the light shielding mask 24 are constituted of light-transmissive parts 25a to 25e whose shapes are varied in accordance with respective lens parts 23b corresponding to respective LEDs 12a to 12e. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an illuminating device that irradiates an irradiation surface with an irradiation image such as predetermined characters and figures.

Conventionally, many proposals have been made on illumination devices that irradiate an irradiation surface with a desired irradiation image. For example, in Patent Literature 1, in a lighting device in which a negative film is installed on the front side of a housing that holds a light source in the innermost part, a reflection suppressing member is provided on the inner side surface of the housing, and the light source is reflected by the reflection suppressing member. A technique for clearly irradiating an image formed on a negative film by suppressing the diffuse reflection and specular reflection of light reaching the negative film from the above is disclosed.
JP 2004-117494 A

  By the way, in this type of lighting device, in order to improve convenience and improve added value, it is desirable to have a configuration capable of irradiating a plurality of patterns of irradiation images. Further, in this type of lighting device, it is desirable to irradiate the irradiated image with uniform illuminance without uneven brightness in order to further improve the added value.

  An object of this invention is to provide the illuminating device which can irradiate the irradiation image of multiple patterns with many variations with uniform illumination intensity with simple structure.

  The present invention includes a plurality of light sources, a fly-eye lens having a plurality of lens portions that emit the light emitted from each of the light sources so as to be superimposed on a specific irradiation region, and the light emitted from each of the light sources. An optical path limiting unit that limits the optical path and prohibits the light emitted from different light sources from entering the same lens unit, and the transparent surface that faces the incident surface of the fly-eye lens and corresponds to each lens unit. A light-shielding mask in which a light part is opened, and the opening shape of each light-transmitting part is set to a different shape for each lens part corresponding to each light source.

  According to the illuminating device of the present invention, it is possible to irradiate a plurality of patterns of irradiation images with a uniform illuminance with a simple configuration.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 6 relate to a first embodiment of the present invention. FIG. 1 is a sectional view of a main part of the illumination device, FIG. 2 is an exploded perspective view of the illumination device, FIG. 3 is a plan view of a light shielding mask, and FIG. FIG. 5 is a schematic configuration diagram of a lighting circuit of each light emitting diode, FIG. 5 is a timing chart showing an example of lighting timing of each light emitting diode, and FIG. 6 is an explanatory diagram showing an example of a transition irradiation image.

  In FIG. 1, reference numeral 1 denotes an illuminating device, and the illuminating device 1 includes a light source unit 10 and a lens optical system unit 20 provided on the light source unit 10.

  As shown in FIGS. 1 and 2, the light source unit 10 includes an LED substrate 11, and the LED substrate 11 is mounted with, for example, first to fifth light emitting diodes (LEDs) 12 a to 12 e as light sources.

  Here, in the present embodiment, each of the LEDs 12a to 12e includes a light emitter 13 and a lens unit 14 for defining a directivity characteristic of light emitted from the light emitter 13 at a predetermined angle (for example, 20 °). Is a so-called bullet-type LED. Moreover, each LED12a-12e employ | adopts the light-emitting body 13 from which luminescent color mutually differs, respectively.

  In the present embodiment, the LEDs 12a to 12e are arranged in a cross shape with the first LED 12a as the center, and these are fixed to the LED substrate 11 by soldering or the like (see FIG. 2). Each of the LEDs 12a to 12e is electrically connected to a conductive wire (not shown) disposed on the LED substrate 11. Thereby, as shown in FIG. 4, each LED12a-12e is each connected to the power supply via the switch elements 15a-15e which consist of transistors etc., and resistance 16a-16e, respectively.

  Moreover, the control part 18 as a lighting control means which controls lighting of each LED12a-12e separately is connected to each switch element 15a-15e, and the control part 18 according to the preset program etc. The switch elements 15a to 15e are ON / OFF controlled. That is, the control unit 18 lights a plurality of LEDs in a preset combination according to a preset procedure.

  In FIGS. 1 and 2, reference numeral 19 denotes a heat radiating fin for radiating the heat of the LED board 11 to improve the light emission efficiency of the LEDs 12 a to 12 e, and the heat radiating fin 19 is fixed to the back surface of the LED board 11. ing.

  As shown in FIGS. 1 and 2, the lens optical system unit 20 includes a lens housing 21 and a fly-eye lens 23 housed and held in the lens housing 21. Furthermore, the lens optical system unit 20 includes a light shielding mask 24 that faces the incident surface of the fly-eye lens 23 in the lens housing 21.

  As shown in FIG. 2, in the present embodiment, the lens housing 21 has a substantially rectangular tube shape, and an LED insertion port 30 is opened at one end in the optical axis direction. Further, at the other end of the lens housing 21 in the optical axis direction, an illumination light exit port 31 is opened at a position facing the LED insertion port 30. As shown in FIG. 1, when the lens housing 21 is mounted on the light source unit 10, the LEDs 12 a to 12 e are exposed to the inside through the LED insertion port 30, and each lens unit 14 is opposed to the emission port 31. Let

  The lens housing 21 has a lens insertion opening 33 that opens to one side, and the light shielding mask holding grooves that face each other in order from the LED insertion opening 30 side on the inner surface of each side wall adjacent to the lens insertion opening 33. 35 and a fly-eye lens holding groove 36. Further, on the LED insertion port 30 side of the light shielding mask holding groove 35, the lens housing 21 has a light shielding plate 38 that divides the interior into an LED insertion port 30 side and an emission port 31 side. Have openings 38a corresponding to the respective LEDs 12a to 12e.

  The fly-eye lens 23 includes, for example, a plurality of (for example, a plurality of, for example, an incident surface protruding downward and an emission surface protruding upward on a substantially rectangular lens substrate 23a inserted and held in the fly-eye lens holding groove 36. 5 × 7 lens portions 23b are lens members integrally formed in a matrix. Then, the fly-eye lens 23 emits the light incident on each lens portion 23b so as to overlap each other in a specific irradiation region.

  Here, each opening part 38a opened to the light-shielding plate 38 restricts the optical path of light emitted from each corresponding LED 12a to 12e to a predetermined value, so that the same lens part 23b can receive light from two or more different types of LEDs. Prohibit light from entering. Thereby, in this embodiment, the emitted light from the first LED 12a can be incident on the 3 × 3rd, 3 × 4th, and 3 × 5th lens portions 23b in a limited manner, for example. Yes. The emitted light from the second LED 12b is, for example, 1 × 3rd, 1 × 4th, 1 × 5th, 2 × 3rd, 2 × 4th, and 2 × 5th lens portions 23b. It is possible to enter in a limited manner. The light emitted from the third LED 12c is, for example, 4 × 3rd, 4 × 4th, 4 × 5th, 5 × 3rd, 5 × 4th, and 5 × 5th lens portions 23b. It is possible to enter in a limited manner. The emitted light from the fourth LED 12d is, for example, 2 × 1, 2 × 2, 3 × 1, 3 × 2, 4 × 1 and 4 × 2 lens portions 23b. It is possible to enter in a limited manner. Further, the emitted light from the fifth LED 12e is, for example, 2 × 6th, 2 × 7th, 3 × 6th, 3 × 7th, 4 × 6th, and 4 × 7th lens portions 23b. It is possible to enter in a limited manner. That is, in the present embodiment, the light shielding plate 38 realizes a function as optical path limiting means.

  The light shielding mask 24 includes a light-transmitting substrate 24a having a substantially rectangular shape inserted and held in the light-shielding mask holding groove 35, and a light-shielding film 24b formed on the emission surface of the light-transmitting substrate 24a. The light-shielding mask 24 is opposed to the incident surface of the fly-eye lens 23 in the vicinity, and the light-shielding film 24b has light-transmitting portions (first to first) having different patterns for the respective lens portions 23b corresponding to the respective LEDs 12a to 12e. A plurality of fifth light transmitting portions 25a to 25e) are opened.

  As shown in FIG. 3, in the present embodiment, the first light transmitting portion 25 a that opens corresponding to each of the three lens portions 23 b into which light from the first LED 12 a can enter is, for example, an elongated shape. It is a pattern in which a circular pattern is combined with one end of a rectangular pattern. In addition, the second light transmitting parts 25b that open corresponding to the six lens parts 23b into which the light from the second LED 12b can enter, for example, have six flat elliptical patterns arranged radially. It is a pattern. Further, the third light-transmitting portion 25c that opens corresponding to each of the six lens portions 23b that can receive light from the third LED 12c has, for example, six flat oval patterns formed in the second light-transmitting pattern. The pattern is arranged radially in a direction different from that of the light portion 25b. In addition, the fourth light transmitting portion 25d that opens corresponding to each of the six lens portions 23b into which light from the fourth LED 12d can enter, for example, has eight flat elliptical patterns arranged radially. It is a pattern. In addition, the fifth light transmitting portion 25e opening corresponding to each of the six lens portions 23b into which the light from the fifth LED 12e can enter is, for example, a pattern in which 12 flat elliptical patterns are arranged radially. It has become.

  Here, reference numeral 40 in FIG. 2 denotes a side plate. The side plate 40 is formed by attaching the fly-eye lens 23 and the light-shielding mask 24 in the lens housing 21 and then, for example, attaching them using an adhesive tape or the like. The lens insertion port 33 of the body 21 is closed.

Next, an example of lighting control of the LEDs 12a to 12e by the control unit 18 will be described with reference to the timing chart of FIG.
In the present embodiment, the control unit 18 sequentially illuminates, for example, five irradiation images from SCENE1 to SCENE5 on an irradiation surface (not shown) by selectively lighting the LEDs 12a to 12e.

  That is, the control unit 18 first turns on all of the first to fifth LEDs 12a to 12e, thereby forming an irradiation image of SCENE 1 imitating a sparkler as shown in FIG. Next, the control unit 18 turns off the other LEDs 12c to 12e with the first and second LEDs 12a and 12b turned on, thereby forming an irradiation image of SCENE 2 shown in FIG. 6B. To do. Next, the control unit 18 turns on the third LED 12c instead of the second LED 12b in a state in which the first LED 12a is turned on, so that the irradiation image of SCENE 3 shown in FIG. Form. Next, the control unit 18 turns on the fourth LED 12d instead of the third LED 12c in a state where the first LED 12a is turned on, thereby obtaining an irradiation image of the SCENE 4 shown in FIG. Form. Next, the control unit 18 turns on the fifth LED 12e instead of the fourth LED 12d in a state where the first LED 12a is turned on, thereby obtaining an irradiation image of the SCENE 5 shown in FIG. Form. And it becomes possible to display the animation by an irradiation image by repeatedly performing these series of controls.

  According to such an embodiment, the fly-eye lens 23 having the plurality of LEDs 12a to 12e and the plurality of lens portions 23b that emit the light emitted from the respective LEDs 12a to 12e so as to be superimposed on a specific irradiation region. And a light shielding plate 38 that restricts the optical path of the emitted light from each of the LEDs 12a to 12e and prohibits the emitted light from different LEDs from entering the same lens portion 23b, and each lens portion of the fly-eye lens 23. And a light-shielding mask 24 having a light-transmitting portion corresponding to each of the light-transmitting portions 23b, and each light-transmitting portion opening in the light-shielding mask 24 having a different shape for each lens portion 23b corresponding to each of the LEDs 12a to 12e. With the configuration of the parts 25a to 25e, it is possible to irradiate multiple patterns of irradiation images with a uniform illumination with a simple configuration and uniform illumination. .

  In other words, the light-shielding plate 38 is configured to prohibit light emitted from different LEDs from entering the same lens portion 23b, and the light-transmitting portions 25a to 25e opened in the light-shielding mask 24 are replaced with the LEDs 12a to 12e. By opening in different patterns for each lens part 23b corresponding to the above, it is possible to irradiate a plurality of patterns of irradiation images with a simple configuration.

  Moreover, since the emitted light from each LED12a-12e each injects into the some lens part 23b, respectively, since it mutually overlaps in a specific irradiation area | region, each irradiation image formed with the emitted light from each LED12a-12e, Each of them can be an irradiation image with uniform illuminance without luminance unevenness.

  In that case, the control part 18 can irradiate the irradiation image of multiple patterns with more variation by lighting each LED12a-12e by the combination preset according to the preset procedure. In particular, by giving meaning to the patterns of the respective translucent portions 25a to 25e and appropriately setting the combination and timing of the respective LEDs 12a to 12e to be lit, an irradiation image having predetermined information is displayed as a moving image. Can do.

  Next, FIG. 7 to FIG. 15 relate to the second embodiment of the present invention, FIG. 7 is a perspective view of the lighting device, FIG. 8 is a cross-sectional view of the main part of the lighting unit, and FIG. 10 is a plan view of the light shielding mask, FIG. 11 is a schematic configuration diagram of a lighting circuit of each light emitting diode, FIG. 12 is a timing chart showing an example of lighting timing of each light emitting diode, and FIG. 13 shows an example of a transition irradiation image. FIG. 14 is an explanatory view, FIG. 14 is a plan view showing an example of a pattern of a light transmitting portion opened in the light shielding mask, and FIG. 15 is an explanatory view showing an example of a transition irradiation image. In this embodiment, instead of the LEDs 12a to 12e employed in the first embodiment described above, an example of an illuminating device that employs relatively high output surface-mounted light emitting diodes 112a to 112d as a light source. Explain.

  In FIG. 7, reference numeral 100 denotes an illuminating device, and this illuminating device 100 includes, for example, four light source units (first to fourth light source units 110 a to 110 d), and each light source unit 110 a to 110 d. And four lens optical system units (first to fourth lens optical system units 120a to 120d).

  Here, in the present embodiment, the first to fourth lens optical system units 120a to 120d have substantially the same configuration. Therefore, the first to fourth lens optical system units 120a to 120d are represented by the first, unless particularly required in the following description. The configurations of the light source unit 110a and the first lens optical system unit 120a will be described. Of the configurations of the second to fourth light source units 110b to 110d and the second to fourth lens optical system units 120b to 120d, the same as the first light source unit 110a and the first lens optical system unit 120a. With respect to the configuration, the same reference numerals are used in which the subscript a is changed to subscripts b to d, and the description is omitted.

  As shown in FIGS. 8 and 9, the first light source unit 110a has a first LED substrate 111a, and the first LED substrate 111 is, for example, a surface-mounting type in which a single convex lens is fixed on an emission plane. The first light emitting diode (LED) 112a is held by soldering or the like. In order to improve the light emission efficiency of the first LED 112a, the heat radiation fin 113a is fixed to the back surface of the first LED substrate 111a.

  Here, as shown in FIG. 11, the first LED 112a, together with the second to fourth LEDs 112b to 112d constituting the second to fourth light source units 110b to 110d, are respectively connected to the switch elements 115a to 115d. It is connected to the power source 117 via 116a to 116d. In the present embodiment, it is desirable that the first to fourth LEDs 112a to 112d are LEDs of different emission colors.

  Each switch element 115a to 115d is connected to a control unit 118 as a lighting control means for individually controlling the lighting of each LED 112a to 112d. The control unit 118 is configured according to a preset program or the like. The switch elements 115a to 115d are ON / OFF controlled. That is, the control unit 118 lights a plurality of LEDs in a preset combination according to a preset procedure.

  The first lens optical system unit 120a includes a first lens housing 121a, a first collimation lens 122a housed and held in the first lens housing 121a, and a first fly-eye lens 123a. Have. Further, the first lens optical system unit 120a includes a first light shielding mask 124a facing the incident surface of the first fly-eye lens 123a inside the lens housing 121a. Here, as shown in FIG. 7, in the present embodiment, the first lens casing 121a is integrally formed with the second to fourth lens casings 121b to 121d by injection molding or the like.

  As shown in FIG. 9, the first lens housing 121a has a substantially rectangular tube shape, and a first LED insertion opening 130a is opened at one end in the optical axis direction. In addition, the first outgoing light 131a is opened at the other end of the first lens housing 121a in the optical axis direction at a position facing the first LED insertion port 130a. As shown in FIG. 8, when the first lens housing 121a is crowned on the first light source unit 110a, the first LED 112a is exposed to the inside through the first LED insertion port 130a. The emission plane of one LED 112a is opposed to the first emission light 131a.

  The first lens housing 121a has a first lens insertion opening 133a that opens to one side, and a first LED insertion opening is formed on the inner surface of each side wall adjacent to the first lens insertion opening 133a. In order from the 130a side, a first collimation lens holding groove 135a, a first light shielding mask holding groove 136a, and a first fly-eye lens holding groove 137a facing each other are provided.

  In the first collimation lens 122a, for example, the first lens portion 142a is integrally formed on the emission side of the first lens substrate 141a having a substantially rectangular shape that is inserted and held in the first collimation lens holding groove 135a. It is a lens member. The first collimation lens 122a converts the light incident from the first LED 112a into substantially parallel light by the first lens unit 142a and emits the light to the first fly-eye lens 123a side.

  The first fly-eye lens 123a has, for example, an incident surface protruding downward and an output protruding upward on the first lens substrate 143a having a substantially rectangular shape inserted and held in the first fly-eye lens holding groove 137a. A lens member in which a plurality of (for example, 5 × 7) first lens portions 144a having a surface are integrally formed in a matrix. The first fly-eye lens 123a uniformly irradiates a specific irradiation region by superimposing light incident on the first lens portions 144a on each other.

  Here, each of the lens portions 144b to 144d of the second to fourth fly's eye lenses 123b to 123d is also emitted by superimposing incident light on the same irradiation region as the irradiation region of each first lens portion 144a. It is set to be. In that case, each lens housing | casing 121a-121d prohibits the emitted light from different LED injecting into the same lens part by mutually dividing the optical path from each LED112a-112d. That is, the first to fourth lens housings 121a to 121d have a function as optical path limiting means.

  The first light-shielding mask 124a is formed on the first light-transmitting substrate 145a having a substantially rectangular shape inserted into and held in the first light-shielding mask holding groove 136a, and on the emission surface of the first light-transmitting substrate 145a. A first light-shielding film 146a. The first light-shielding mask 124a is opposed to the incident surface of the first fly-eye lens 123a in close proximity, and each first lens portion 144a of the first fly-eye lens 123a is opposed to the first light-shielding film 146a. The first translucent portion 147a is opened at a position corresponding to each. As shown in FIG. 10A, each first light transmitting portion 147a is a pattern indicating a so-called prohibition mark in which a diagonal pattern is combined with a circular pattern, for example.

  Further, as shown in FIG. 10B, each second light transmitting portion 147b opened corresponding to each first lens portion 144b of the second fly-eye lens 123b has, for example, a cigarette pattern. It has become. Further, as shown in FIG. 10C, each third light transmitting portion 147c opening corresponding to each third lens portion 144c of the third fly-eye lens 123c has, for example, a cellular phone pattern. It is a pattern. Further, as shown in FIG. 10 (d), each fourth light transmitting portion 147d opening corresponding to each fourth lens portion 144d of the fourth fly-eye lens 123d has, for example, a round pattern. This is a so-called permission mark pattern.

  Here, reference numeral 140a in FIG. 9 denotes a first side plate. The first side plate 140a includes a first fly-eye lens 123a, a first collimation lens 122a, and a first light shielding mask 124a. The first lens insertion opening 133a of the first lens housing 121a is closed by, for example, sticking using an adhesive tape or the like after being accommodated in the lens housing 121a.

  Next, lighting control of each of the LEDs 112a to 112d performed by the control unit 118 will be described. Here, the lighting mode of each of the LEDs 112 a to 112 d can be set using the operation panel 150 connected to the control unit 118. That is, the operation panel 150, for example, the first to fourth LED selection switches 152a to 152d for selecting the LED to be lit (that is, the pattern to be irradiated) from the first to fourth LEDs 112a to 112d. And first to fourth indicators 151a to 151d for displaying the selection states of the first to fourth LEDs 112a to 112d, respectively.

  In addition, the operation panel 150 has, for example, first and second mode selection switches 154a and 154b as switches for switching the lighting modes of the LEDs selected by the LED selection switches 152a to 152d, and the selected mode. It has 1st, 2nd indicator 153a, 153b for displaying.

  And the control part 118 carries out lighting control of each LED selected through LED selection switch 152a-152d according to the program etc. which were preset. At that time, for example, when the first mode (Mode 1) is selected by the first mode selection switch 154a, the control unit 118 uses PWM control (pulse width modulation control) or the like to control each LED. The current amount at the time of lighting or turning off is gradually increased or decreased. On the other hand, for example, when the second mode (Mode 2) is selected by the second mode selection switch 154b, the control unit 118 turns each LED on and off with a constant current amount.

  Next, when the first to third LEDs 112a to 112c are selected through the first to third LED selection switches 152a to 152c and the first mode is selected by the first mode selection switch 154a. An example of the lighting control executed by the control unit 118 will be described according to the timing chart shown in FIG.

  First, the control unit 118 gradually displays the prohibition mark as shown in FIG. 13A by increasing the current amount for the first LED 112a from 0% to 100% over the set time (SCENE1). . Next, the control unit 118 increases the amount of current for the second LED 112b from 0% to 100% over a set time while maintaining the amount of current for the first LED 112a at 100%. As shown in (2), cigarette marks are gradually displayed in the prohibition mark (SCENE2). Next, the control unit 118 maintains the current amount for the first and second LEDs 112a and 112b at 100% for the set time, so that the prohibition mark is displayed as shown in FIG. A cigarette mark is displayed (SCENE3). Next, the control unit 118 reduces the amount of current for the second LED 112b from 100% to 0% over a set time while maintaining the amount of current for the first LED 112a at 100%, and for the third LED 112c. By increasing the current amount from 0% to 100% over the set time, as shown in FIG. 13D, the cigarette marks displayed in the prohibition mark are gradually disappeared and the mobile phone mark is gradually released. Display (SCENE4). Next, the control unit 118 maintains the current amount for the first and third LEDs 112a and 112c at 100% for the set time, so that the prohibition mark is displayed as shown in FIG. A mobile phone mark is displayed (SCENE5). Next, the control unit 118 reduces the amount of current for the third LED 112c from 100% to 0% over a set time while maintaining the amount of current for the first LED 112a at 100%. ), The mobile phone mark displayed in the prohibition mark is gradually disappeared (SCENE 6). Next, the control unit 118 gradually eliminates the prohibition mark as shown in FIG. 13A by reducing the current amount for the first LED 112a from 100% to 0% over the set time (SCENE7). ). Then, by repeatedly executing these series of controls, it is possible to display information indicating that smoking and talking on a mobile phone are prohibited by an irradiation image.

  In the above-described control, by selecting the fourth LED 112d instead of the first LED 112a, it is possible to display information indicating that smoking and a mobile phone call are permitted. In addition, by combining either the second LED 112b or the third LED 112c and the lighting control of the first LED 112a, information indicating that only smoking or only a phone call is prohibited is displayed. It is also possible. Furthermore, by combining either the second LED 112b or the third LED 112c and the lighting control of the fourth LED 112d, information indicating that only smoking or only a mobile phone call is permitted is displayed. It is also possible.

  Here, in addition to the light shielding films 146a to 146d of the light shielding masks 124a to 124d, light transmitting portions of various patterns can be formed. For example, as shown in FIG. 14, by forming diamond-shaped light transmitting portions 148a to 148d having different directions in the respective light shielding films 146a to 146d, for example, as shown in FIGS. 15 (a) to (d), It is possible to display a star-shaped irradiation image. In this case, in particular, by setting the emission colors of the LEDs 112a to 112d to different emission colors, it is possible to cause a color change in each part where the irradiation images overlap.

  According to such an embodiment, substantially the same effects as those of the first embodiment described above can be achieved.

  In addition, in this embodiment, although the example which comprised the fly eye lens etc. which comprise each 1st-4th lens optical system unit 120a-120d by a separate member was demonstrated, this invention is limited to this. Instead, it is possible to integrate the members of each unit. For example, the first to fourth fly-eye lens holding grooves 136a to 136d are formed as a series of fly-eye lens holding grooves across the lens optical system units 120a to 120d, and the first to fourth fly-eye lens holding grooves are connected to the first to fourth fly-eye lens holding grooves. Of course, the fourth fly-eye lenses 123a to 123d may be integrally formed. By adopting such a configuration, the number of parts can be reduced and the structure can be simplified.

Sectional drawing of the principal part of an illuminating device in connection with the 1st Embodiment of this invention. Same as above, exploded perspective view of lighting device Same as above, top view of shading mask Same as above, schematic configuration diagram of lighting circuit of each light emitting diode Same as above, timing chart showing an example of lighting timing of each light emitting diode As above, an explanatory diagram showing an example of an irradiation image The perspective view of the illuminating device in connection with the 2nd Embodiment of this invention. Same as above, sectional view of the main part of the lighting unit Same as above, exploded perspective view of lighting unit Same as above, top view of shading mask Same as above, schematic configuration diagram of lighting circuit of each light emitting diode Same as above, timing chart showing an example of lighting timing of each light emitting diode As above, an explanatory diagram showing an example of a transition irradiation image The top view which shows an example of the pattern of the translucent part opened to a light shielding mask as above As above, an explanatory diagram showing an example of a transition irradiation image

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Illuminating device, 12a-12e ... 1st-5th light emitting diode (light source), 18 ... Control part (lighting control means), 23 ... Fly eye lens, 23b ... Lens part, 24 ... Light shielding mask, 25a-25e DESCRIPTION OF SYMBOLS 1st-5th light transmission part, 38 ... Light-shielding plate (light path limiting means), 100 ... Illuminating device, 112a-112d ... 1st-4th light emitting diode (light source), 118 ... Control part (lighting control means) ), 121a to 121d, first to fourth lens housings (optical path limiting means), 123a to 123d, first to fourth fly-eye lenses, 124a to 124d, first to fourth light shielding masks, 144a to 144a. 144d ... 1st-4th lens part, 147a-147d ... 1st-4th translucent part

Claims (2)

Multiple light sources;
A fly's eye lens having a plurality of lens portions that emit the light emitted from each light source so as to be superimposed on a specific irradiation region;
An optical path limiting means for limiting the optical path of the outgoing light from each of the light sources and prohibiting the outgoing light from different light sources to enter the same lens unit;
A light-shielding mask facing the entrance surface of the fly-eye lens and having a light-transmitting part corresponding to each lens part,
The opening shape of each said translucent part was set to the different shape for every said lens part corresponding to each said light source, The illuminating device characterized by the above-mentioned. Comprising lighting control means for individually controlling lighting of each light source;
The lighting device according to claim 1, wherein the lighting control unit lights a plurality of the light sources in a preset combination according to a preset procedure.

Images