JP2019027254A - Equipment for water - Google Patents

Equipment for water Download PDF

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JP2019027254A
JP2019027254A JP2017151098A JP2017151098A JP2019027254A JP 2019027254 A JP2019027254 A JP 2019027254A JP 2017151098 A JP2017151098 A JP 2017151098A JP 2017151098 A JP2017151098 A JP 2017151098A JP 2019027254 A JP2019027254 A JP 2019027254A
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light
guide member
light guide
case
incident
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JP7009108B2 (en
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伸明 板頭
Nobuaki Bando
伸明 板頭
宙 奥澤
Hiroshi Okuzawa
宙 奥澤
良太 川畑
Ryota Kawabata
良太 川畑
和夫 上杉
Kazuo Uesugi
和夫 上杉
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Lixil Corp
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Lixil Corp
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Abstract

To provide a technique capable of enhancing a luminous efficiency of a light guide member.SOLUTION: A light emitting device to be incorporated in equipment for water comprises a light guide member 48 that can guide light incident from an incident surface internally and emit the light from an emission surface 48b, a case 50 that houses the light guide member 48 and is capable of transmitting light emitted from the emission surface 48b, and a reflector 68 that is capable of reflecting light emitted from a surface other than the emission surface 48b of the light guide member 48 toward an inside of the light guide member 48. By returning a part of the light emitted from a portion other than the emission surface 48b of the light guide member 48 to the inside of the light guide member 48, the amount of light emitted from the emission surface 48b can be increased, and a luminous efficiency of the light guide member 48 can be enhanced.SELECTED DRAWING: Figure 10

Description

本発明は、発光装置を用いた水回り機器に関する。   The present invention relates to a watering device using a light emitting device.

自動水栓等の水回り機器には、たとえば、水回り機器の動作に関する情報を表示するため、発光装置を組み込む場合がある。この種の発光装置には、光源が発する光により発光する発光部材として導光部材を組み込む場合がある。たとえば、特許文献1には、発光部材の一例となる表示ランプとして機能する導光部材を組み込んだ発光装置が記載されている。   A water-emitting device such as an automatic water faucet may incorporate a light emitting device in order to display information related to the operation of the water-based device, for example. In this type of light emitting device, a light guide member may be incorporated as a light emitting member that emits light by light emitted from a light source. For example, Patent Document 1 describes a light emitting device incorporating a light guide member that functions as a display lamp as an example of a light emitting member.

特開2011−153408号公報JP 2011-153408 A

発光部材として機能する導光部材は、良好な視認性を得る観点から、その発光箇所を大型化できると好ましい。このように導光部材を大型化する場合、導光部材の発光効率の低下を招く。従来の発光装置は、導光部材の発光効率の面から工夫をしたものではなく、その改良が望まれる。   The light guide member functioning as a light emitting member is preferable if the light emitting portion can be enlarged from the viewpoint of obtaining good visibility. Thus, when enlarging a light guide member, the light emission efficiency of a light guide member falls. The conventional light emitting device is not devised from the viewpoint of the light emission efficiency of the light guide member, and its improvement is desired.

本発明のある態様は、このような課題に鑑みてなされ、その目的の1つは、導光部材の発光効率を高められる技術を提供することにある。   An aspect of the present invention is made in view of such a problem, and one of the purposes is to provide a technique capable of increasing the light emission efficiency of the light guide member.

本発明の第1態様は水回り機器である。第1態様の水回り機器は、水回り機器に組み込まれる発光装置であって、入射面から入射した光を内部で導光させ、出射面から出射させることが可能な導光部材と、前記導光部材を収容し、前記出射面から出射する光が透過可能なケースと、前記導光部材の前記出射面以外の表面から出射する光を前記導光部材の内部に向けて反射可能な反射体と、を備える。   The first aspect of the present invention is a watering device. The water-circulating device according to the first aspect is a light-emitting device incorporated in the water-circulating device, and includes a light guide member capable of guiding light incident from the incident surface inside and emitting the light from the light-emitting surface; A case that accommodates an optical member and can transmit light emitted from the emission surface, and a reflector that can reflect light emitted from a surface other than the emission surface of the light guide member toward the inside of the light guide member And comprising.

第1態様によれば、導光部材の出射面以外の箇所から出射する光の一部を導光部材の内部に戻すことで、出射面から出射する光の光量を増大させることができ、導光部材の発光効率を高められる。   According to the first aspect, by returning a part of the light emitted from the part other than the light exit surface of the light guide member to the inside of the light guide member, the amount of light emitted from the light exit surface can be increased. The luminous efficiency of the optical member can be increased.

第1実施形態の発光装置が組み込まれる水回り機器の斜視図である。It is a perspective view of the water supply apparatus in which the light-emitting device of 1st Embodiment is integrated. 第1実施形態の水回り機器の構成図である。It is a block diagram of the water supply apparatus of 1st Embodiment. 第1実施形態の水回り機器の一部の側面断面図である。It is side surface sectional drawing of a part of water supply apparatus of 1st Embodiment. 第1実施形態の発光装置の側面断面図である。It is side surface sectional drawing of the light-emitting device of 1st Embodiment. 第1実施形態の発光装置の分解斜視図である。It is a disassembled perspective view of the light-emitting device of 1st Embodiment. 図4の拡大図である。FIG. 5 is an enlarged view of FIG. 4. 図3のA−A線断面図である。FIG. 4 is a sectional view taken along line AA in FIG. 3. 第1実施形態の光電センサを説明するための図である。It is a figure for demonstrating the photoelectric sensor of 1st Embodiment. 第1実施形態の発光装置と関連する構成の機能ブロックを示すブロック図である。It is a block diagram which shows the functional block of the structure relevant to the light-emitting device of 1st Embodiment. 図7の導光部材の一部の拡大図である。FIG. 8 is an enlarged view of a part of the light guide member of FIG. 7. 図10の導光部材やケースを導光部材の出射面側から見た断面図である。It is sectional drawing which looked at the light guide member and case of FIG. 10 from the output surface side of the light guide member. 第1実施形態の導光部材に光源光が入射したときの動作を説明するための図である。It is a figure for demonstrating operation | movement when light source light injects into the light guide member of 1st Embodiment. 第2実施形態の導光部材を模式的に示す側面図である。It is a side view which shows typically the light guide member of 2nd Embodiment.

以下、実施形態、変形例では、同一の構成要素に同一の符号を付し、重複する説明を省略する。また、各図面では、説明の便宜のため、構成要素の一部を適宜省略したり、構成要素の寸法を適宜拡大、縮小して示す。以下、共通点の多い別々の構成要素には、名称の冒頭に「第1、第2」と付し、符号の末尾に「−A、−B」と付して区別し、総称するときはこれらを省略することがある。   Hereinafter, in the embodiment and the modification, the same reference numerals are given to the same components, and the duplicate description is omitted. In the drawings, for convenience of explanation, some of the components are omitted as appropriate, and the dimensions of the components are appropriately enlarged and reduced. In the following, separate components that have many common features are distinguished by adding “first, second” at the beginning of the name and “-A, -B” at the end of the symbol. These may be omitted.

図1は、本実施形態の発光装置10が組み込まれる水回り機器12の斜視図である。図2は、水回り機器12の構成図である。本実施形態は発光装置10に主な特徴の一つがあるが、先に周辺構造を説明する。本実施形態の水回り機器12は、自動水栓に用いられる吐水装置である。本実施形態の水回り機器12は、キッチン等の流し台14の表面に設置される。   FIG. 1 is a perspective view of a watering device 12 in which the light emitting device 10 of this embodiment is incorporated. FIG. 2 is a configuration diagram of the watering device 12. Although this embodiment has one of the main features in the light-emitting device 10, a peripheral structure is demonstrated first. The watering device 12 of the present embodiment is a water discharging device used for an automatic faucet. The watering device 12 of this embodiment is installed on the surface of a sink 14 such as a kitchen.

水回り機器12は、給水源から給水路16を通して送られる水を吐水口34aから吐き出し可能である。給水路16は、主水路18と、主水路18の一部を迂回するバイパス水路20とを有する。主水路18には、上流側から下流側にかけて順に、温度調整弁22、流量調整弁24、第1電気駆動弁26が設置される。バイパス水路20には、第2電気駆動弁28が設置される。   The water-circulating device 12 can discharge water sent from the water supply source through the water supply channel 16 from the water discharge port 34a. The water supply channel 16 includes a main water channel 18 and a bypass water channel 20 that bypasses a part of the main water channel 18. In the main water channel 18, a temperature adjustment valve 22, a flow rate adjustment valve 24, and a first electric drive valve 26 are installed in order from the upstream side to the downstream side. A second electrically driven valve 28 is installed in the bypass water channel 20.

図3は、水回り機器12の一部の側面断面図である。図2、図3に示すように、水回り機器12は、発光装置10の他に、主に、機器本体30と、給水ホース32と、吐水ヘッド34と、を備える。   FIG. 3 is a side sectional view of a part of the watering device 12. As shown in FIGS. 2 and 3, the water-circulating device 12 mainly includes a device main body 30, a water supply hose 32, and a water discharge head 34 in addition to the light emitting device 10.

機器本体30は、支持部材36と、吐水管38と、ヘッドホルダー40とを有する。支持部材36は、不図示のねじ構造等を用いて流し台14に固定される。吐水管38は、支持部材36により支持される。吐水管38は、いわゆるグースネック状をなしている。   The apparatus main body 30 includes a support member 36, a water discharge pipe 38, and a head holder 40. The support member 36 is fixed to the sink 14 using a screw structure (not shown) or the like. The water discharge pipe 38 is supported by the support member 36. The water discharge pipe 38 has a so-called gooseneck shape.

機器本体30には、入口部42aから奥側に広がり出口部42bに至る内部通路42が形成される。本実施形態の入口部42aは吐水管38の先端部に形成される。本実施形態の内部通路42は、入口側から出口側に向かって順に、上向きに直線状に延びる第1ストレート部42cと、上向きに凸となる曲線状をなす曲げ部42dと、下向きに直線状に延びる第2ストレート部42eとを有する。   The device main body 30 is formed with an internal passage 42 that extends from the inlet portion 42a to the rear side and reaches the outlet portion 42b. In this embodiment, the inlet 42 a is formed at the tip of the water discharge pipe 38. The internal passage 42 of the present embodiment includes, in order from the inlet side to the outlet side, a first straight portion 42c that extends linearly upward, a bent portion 42d that has a curved shape protruding upward, and a linear shape downward. And a second straight portion 42e extending in the direction.

ヘッドホルダー40は、内部通路42の入口側部分に配置され、ビス等の締結具44を用いて吐水管38に固定される。ヘッドホルダー40は、給水ホース32が抜挿可能に挿通されるホース挿通孔40aが形成される孔壁部40bと、ホース挿通孔40aに対して給水ホース32が挿される側に設けられるホースガイド部40cとを有する。ホースガイド部40cは、吐水管38内に挿通され、内側に挿通される給水ホース32をガイド可能である。ホースガイド部40cの外周部には、発光装置10を支持するセンサ支持部40dが設けられる。   The head holder 40 is disposed at the inlet side portion of the internal passage 42 and is fixed to the water discharge pipe 38 using a fastener 44 such as a screw. The head holder 40 includes a hole wall portion 40b in which a hose insertion hole 40a is formed so that the water supply hose 32 is removably inserted, and a hose guide portion provided on the side where the water supply hose 32 is inserted with respect to the hose insertion hole 40a. 40c. The hose guide portion 40c is inserted into the water discharge pipe 38 and can guide the water supply hose 32 inserted inside. A sensor support portion 40d that supports the light emitting device 10 is provided on the outer peripheral portion of the hose guide portion 40c.

給水ホース32は、フレキシブルホース等であり、可撓性を持つ素材を用いて構成される。給水ホース32の内側には前述の給水路16が形成される。給水ホース32は、内部通路42に挿通される。   The water supply hose 32 is a flexible hose or the like, and is configured using a flexible material. The aforementioned water supply path 16 is formed inside the water supply hose 32. The water supply hose 32 is inserted into the internal passage 42.

吐水ヘッド34は、給水ホース32の下流端部に接続される。吐水ヘッド34には、給水ホース32から流入する水を吐き出すための吐水口34aが形成される。本実施形態の吐水ヘッド34は、内部通路42の入口部42aから出し入れ可能に内部通路42の入口側部分に配置される。吐水ヘッド34は、バネ部材等の弾性部材を用いたヘッド装着機構46によりヘッドホルダー40に脱着可能に装着される。   The water discharge head 34 is connected to the downstream end of the water supply hose 32. The water discharge head 34 is formed with a water discharge port 34 a for discharging water flowing from the water supply hose 32. The water discharge head 34 of this embodiment is arrange | positioned at the inlet-side part of the internal channel | path 42 so that insertion / extraction from the inlet part 42a of the internal channel | path 42 is possible. The water discharge head 34 is detachably mounted on the head holder 40 by a head mounting mechanism 46 using an elastic member such as a spring member.

発光装置10の説明に移る。図4は、発光装置10の側面断面図である。図5は、発光装置10の分解斜視図である。発光装置10は、導光部材48と、ケース50と、複数の光電センサ52と、光源54と、複数の基板56、58と、カラーシート60と、を備える。   Turning to the description of the light emitting device 10. FIG. 4 is a side sectional view of the light emitting device 10. FIG. 5 is an exploded perspective view of the light emitting device 10. The light emitting device 10 includes a light guide member 48, a case 50, a plurality of photoelectric sensors 52, a light source 54, a plurality of substrates 56 and 58, and a color sheet 60.

導光部材48は、入射面48aから入射した光を内部で導光させ、出射面48bから面状に出射させることが可能である。これにより、導光部材48は、その出射面48bを面発光させることが可能である。本実施形態の導光部材48は、出射面48bを面発光させることで、水回り機器12の動作に関する情報を表示する表示ランプとして用いられる。   The light guide member 48 can guide the light incident from the incident surface 48a inside and emit the light from the output surface 48b in a planar shape. Thereby, the light guide member 48 can make the light emission surface 48b surface-emit. The light guide member 48 of the present embodiment is used as a display lamp that displays information related to the operation of the water-circulating device 12 by causing the emission surface 48b to emit light.

導光部材48は、アクリル樹脂等の透光性を持つ素材を用いて構成される。本実施形態の導光部材48は無色透明である。導光部材48は、一端となる後端48cから他端となる前端48dに向かう延び方向Xに延びている。本実施形態の導光部材48は、後端48cから前端48dに向けて延びる長尺体であり、その延び方向Xは導光部材48の長手方向となる。また、本実施形態の導光部材48は延び方向Xに延びる導光板である。本実施形態の導光部材48は、延び方向Xの両端部より中央部が延び方向Xと交差する厚み方向Yに凸をなすように湾曲する。本実施形態の導光部材48は、機器本体30の内部通路42の曲げ部42dの曲率半径に対応する曲率半径で湾曲する。導光部材48は、ケース50に接着等により取り付けられる。   The light guide member 48 is configured using a translucent material such as acrylic resin. The light guide member 48 of this embodiment is colorless and transparent. The light guide member 48 extends in the extending direction X from the rear end 48c serving as one end toward the front end 48d serving as the other end. The light guide member 48 of this embodiment is a long body extending from the rear end 48 c toward the front end 48 d, and the extending direction X is the longitudinal direction of the light guide member 48. The light guide member 48 of the present embodiment is a light guide plate extending in the extending direction X. The light guide member 48 of the present embodiment is curved so as to protrude in the thickness direction Y where the central portion extends from both ends of the extending direction X and intersects the direction X. The light guide member 48 of this embodiment is curved with a curvature radius corresponding to the curvature radius of the bending portion 42 d of the internal passage 42 of the device main body 30. The light guide member 48 is attached to the case 50 by adhesion or the like.

図6は、図4の拡大図である。導光部材48は、入射面48aと、出射面48bと、出射面48bとは表裏反対側に設けられる反射面48eとを有する。出射面48bは厚み方向Yの片面に設けられ、反射面48eは厚み方向Yの反対面に設けられる。   FIG. 6 is an enlarged view of FIG. The light guide member 48 includes an incident surface 48a, an output surface 48b, and a reflective surface 48e provided on the opposite side of the output surface 48b. The emission surface 48b is provided on one surface in the thickness direction Y, and the reflection surface 48e is provided on the opposite surface in the thickness direction Y.

本実施形態の入射面48aは、導光部材48の延び方向Xの後端48c側の後端部48fに設けられる。本実施形態の導光部材48は、導光部材48の延び方向Xの後端部48fにて、反射面48eより突き出る凸部48gを有する。本実施形態の入射面48aは凸部48gの先端面に設けられる。本実施形態の入射面48aは、導光部材48の反射面48e側の面部分に設けられることになる。   In the present embodiment, the incident surface 48 a is provided at the rear end portion 48 f on the rear end 48 c side in the extending direction X of the light guide member 48. The light guide member 48 of the present embodiment has a convex portion 48g that protrudes from the reflection surface 48e at the rear end portion 48f in the extending direction X of the light guide member 48. In the present embodiment, the incident surface 48a is provided on the tip surface of the convex portion 48g. The incident surface 48 a of the present embodiment is provided on the surface portion of the light guide member 48 on the reflective surface 48 e side.

入射面48aと反射面48eは、導光部材48の延び方向Xに沿って設けられる。反射面48eは、入射面48aから入射させた光を出射面48b側に向けて反射可能である。これを実現するため、反射面48eには、入射面48aから入射させた光を出射面48bに向けて反射させるための第1反射部48hが設けられる。本実施形態の第1反射部48hは、サンドブラスト加工等により得られる微細な凹凸が形成された粗面であり、第1反射部48hまで伝搬した光を拡散反射させる。本実施形態の第1反射部48hは反射面48eの全面に亘り形成される。   The incident surface 48 a and the reflecting surface 48 e are provided along the extending direction X of the light guide member 48. The reflection surface 48e can reflect the light incident from the incident surface 48a toward the emission surface 48b. In order to realize this, the reflecting surface 48e is provided with a first reflecting portion 48h for reflecting the light incident from the incident surface 48a toward the emitting surface 48b. The first reflecting portion 48h of the present embodiment is a rough surface on which fine unevenness obtained by sandblasting or the like is formed, and diffusely reflects the light propagated to the first reflecting portion 48h. The first reflecting portion 48h of the present embodiment is formed over the entire reflecting surface 48e.

本実施形態の導光部材48は、更に、入射面48aから入射した光を導光部材48の延び方向Xに向けて反射させるための第2反射部48jを有する。本実施形態の第2反射部48jは、導光部材48の後端部48fに設けられる。本実施形態の第2反射部48jは、入射面48aと表裏反対側の位置にて出射面48bの面部分に形成される斜面48jaと、斜面48jaに貼り付けられる反射シート48jbとを有する。反射シート48jbは、たとえば、PET(ポリエチレンテレフタレート)等の光反射率に優れた素材を用いて構成される。第2反射部48jの斜面48jaは、導光部材48の後端48c側に向かうにつれて、導光部材48の出射面48b側から反射面48e側に近づくように、導光部材48の出射面48bに対して傾斜している。これにより、入射面48aに入射した光は、第2反射部48jにより導光部材48の延び方向Xの前端48d側に向かう方向Paに反射させられる。   The light guide member 48 of the present embodiment further includes a second reflecting portion 48 j for reflecting the light incident from the incident surface 48 a toward the extending direction X of the light guide member 48. The second reflecting portion 48j of the present embodiment is provided at the rear end portion 48f of the light guide member 48. The second reflecting portion 48j of the present embodiment includes an inclined surface 48ja formed on the surface portion of the emitting surface 48b at a position opposite to the incident surface 48a and the reflecting surface 48jb attached to the inclined surface 48ja. The reflection sheet 48jb is configured by using a material excellent in light reflectance such as PET (polyethylene terephthalate). The inclined surface 48ja of the second reflecting portion 48j is closer to the reflecting surface 48e side from the emitting surface 48b side of the light guide member 48 toward the rear end 48c side of the light guide member 48. It is inclined with respect to. Thereby, the light incident on the incident surface 48a is reflected by the second reflecting portion 48j in the direction Pa toward the front end 48d side in the extending direction X of the light guide member 48.

図4に示すように、ケース50は中空構造をなす。ケース50は、導光部材48の延び方向Xに延びる長尺体である。本実施形態のケース50は、導光部材48と同様、ケース50の延び方向Xの両端部より中央部が導光部材48の厚み方向Yに凸をなすように湾曲する。ケース50は、導光部材48等の内部部品を収容する。ここでの内部部品とは、導光部材48、光電センサ52、光源54、複数の基板56、58等である。   As shown in FIG. 4, the case 50 has a hollow structure. The case 50 is a long body extending in the extending direction X of the light guide member 48. Similar to the light guide member 48, the case 50 according to the present embodiment is curved so that the center portion is convex in the thickness direction Y of the light guide member 48 from both ends in the extending direction X of the case 50. The case 50 accommodates internal components such as the light guide member 48. Here, the internal components are the light guide member 48, the photoelectric sensor 52, the light source 54, the plurality of substrates 56, 58, and the like.

図7は、図3のA−A線断面図である。ケース50は、導光部材48の延び方向Xに直交する断面にて、導光部材48の厚み方向Yに沿った高さ寸法が、厚み方向Yと直交する幅方向Zに沿った幅寸法より小さい扁平な断面形状である。ケース50は、ヘッドホルダー40のセンサ支持部40dと吐水管38の内周面との間に厚み方向Yの両側から挟まれる。ケース50は、吐水管38の内周面に当てられた状態でヘッドホルダー40のセンサ支持部40dにより下側から支持されることで、吐水管38内での位置が保持される。   7 is a cross-sectional view taken along line AA in FIG. In the case 50, the height dimension along the thickness direction Y of the light guide member 48 is greater than the width dimension along the width direction Z perpendicular to the thickness direction Y in a cross section orthogonal to the extending direction X of the light guide member 48. It is a small flat cross-sectional shape. The case 50 is sandwiched from both sides in the thickness direction Y between the sensor support portion 40 d of the head holder 40 and the inner peripheral surface of the water discharge pipe 38. The case 50 is supported from the lower side by the sensor support portion 40d of the head holder 40 while being applied to the inner peripheral surface of the water discharge pipe 38, so that the position in the water discharge pipe 38 is maintained.

図3、図6に示すように、導光部材48の出射面48b側を向くケース50の天面部には、導光部材48の厚み方向Yに突き出る嵌込凸部50aが設けられる。ケース50の嵌込凸部50aは、機器本体30の吐水管38に形成される窓部38aに嵌め込まれる。   As shown in FIGS. 3 and 6, a fitting convex portion 50 a that protrudes in the thickness direction Y of the light guide member 48 is provided on the top surface portion of the case 50 facing the emission surface 48 b side of the light guide member 48. The fitting convex portion 50 a of the case 50 is fitted into a window portion 38 a formed on the water discharge pipe 38 of the device main body 30.

図4に戻り、ケース50は、ケース本体50bと、封止部材50cとを有する。ケース本体50bは、透光性を持つ樹脂等の透光性素材を用いて構成される。本実施形態のケース本体50bは、単色の透光性素材を用いて構成される。ケース本体50bは、導光部材48の反射面48e側に向けて開く第1開口部50dが形成される箱状をなし、その内部に導光部材48等の内部部品を収容する。本実施形態のケース本体50bには、導光部材48の延び方向Xに長い内部空間が形成される。本実施形態のケース本体50bには、導光部材48の延び方向の後端48c側に向けて開く第2開口部50eが形成される。   Returning to FIG. 4, the case 50 includes a case main body 50 b and a sealing member 50 c. The case main body 50b is configured using a translucent material such as a resin having translucency. The case main body 50b of the present embodiment is configured using a monochromatic translucent material. The case body 50b has a box shape in which a first opening 50d that opens toward the reflecting surface 48e of the light guide member 48 is formed, and accommodates internal components such as the light guide member 48 therein. In the case main body 50b of the present embodiment, an internal space that is long in the extending direction X of the light guide member 48 is formed. A second opening 50e that opens toward the rear end 48c in the extending direction of the light guide member 48 is formed in the case main body 50b of the present embodiment.

なお、ケース本体50bには、導光部材48の配置箇所より導光部材48の前端48d側に第3開口部50hが形成される。第3開口部50hは押しボタン式のスイッチ62により塞がれる。   In the case body 50b, a third opening 50h is formed on the front end 48d side of the light guide member 48 from the location where the light guide member 48 is disposed. The third opening 50 h is closed by a push button type switch 62.

図7に示すように、ケース本体50bには、導光部材48が嵌め込まれる嵌込凹部50fが形成される。嵌込凹部50fは、導光部材48の出射面48b側にて導光部材48と厚み方向Yに対向するケース本体50bの奥壁部50gに形成される。嵌込凹部50fは、導光部材48の延び方向Xに延びる溝状をなしている。   As shown in FIG. 7, the case main body 50b is formed with a fitting recess 50f into which the light guide member 48 is fitted. The fitting recess 50f is formed in the back wall portion 50g of the case main body 50b facing the light guide member 48 in the thickness direction Y on the emission surface 48b side of the light guide member 48. The fitting recess 50 f has a groove shape extending in the extending direction X of the light guide member 48.

図4に戻り、封止部材50cは、ケース本体50bの第1開口部50dや第2開口部50eを塞いでおり、ケース本体50bの内部空間を水密に封止する。これにより、封止部材50cは、ケース本体50bの内部空間の水密性を確保している。本実施形態の封止部材50cは、ホットメルト接着剤であるが、これに限定されない。封止部材50cは、複数の基板56、58に対して導光部材48とは反対側にてケース本体50bの内部空間を埋めるように充填されることで、ケース本体50bの第1開口部50dを塞いでいる。また、封止部材50cは、後述するセンサ用基板56−Bとケース本体50bの内壁面との間を埋めるように充填されることで、ケース本体50bの第2開口部50eを塞いでいる。   Returning to FIG. 4, the sealing member 50c closes the first opening 50d and the second opening 50e of the case main body 50b, and seals the internal space of the case main body 50b in a watertight manner. Thereby, the sealing member 50c ensures the water tightness of the internal space of the case main body 50b. Although the sealing member 50c of this embodiment is a hot melt adhesive, it is not limited to this. The sealing member 50c is filled so as to fill the internal space of the case main body 50b on the side opposite to the light guide member 48 with respect to the plurality of substrates 56 and 58, whereby the first opening 50d of the case main body 50b. Is blocking. Further, the sealing member 50c fills a space between a sensor substrate 56-B (described later) and the inner wall surface of the case main body 50b, thereby closing the second opening 50e of the case main body 50b.

光電センサ52は、所定の検知エリア内での被検知物の有無を検知するためのものである。本実施形態の光電センサ52は赤外線式光量センサである。本実施形態の光電センサ52は、導光部材48の延び方向Xの後端48c側に配置される第1光電センサ52−Aと、前端48d側に配置される第2光電センサ52−Bとが含まれる。第1光電センサ52−Aと第2光電センサ52−Bの構成は大半が共通するため、以下では第1光電センサ52−Aを主に説明する。   The photoelectric sensor 52 is for detecting the presence or absence of an object to be detected within a predetermined detection area. The photoelectric sensor 52 of this embodiment is an infrared light quantity sensor. The photoelectric sensor 52 of the present embodiment includes a first photoelectric sensor 52-A disposed on the rear end 48c side in the extending direction X of the light guide member 48, and a second photoelectric sensor 52-B disposed on the front end 48d side. Is included. Since most of the configurations of the first photoelectric sensor 52-A and the second photoelectric sensor 52-B are common, the first photoelectric sensor 52-A will be mainly described below.

図8は、光電センサ52を説明するための図である。図6、図8に示すように、光電センサ52は、検知光を投光可能な投光部52aと、検知光の反射光を受光可能な受光部52bとを有する。光電センサ52は、投光部52aが投光した検知光の反射光を受光部52bで受光することにより被検知物を検知可能である。本実施形態では検知光として赤外光、つまり、不可視光が用いられる。   FIG. 8 is a diagram for explaining the photoelectric sensor 52. As shown in FIGS. 6 and 8, the photoelectric sensor 52 includes a light projecting unit 52a capable of projecting detection light and a light receiving unit 52b capable of receiving reflected light of the detection light. The photoelectric sensor 52 can detect the detection object by receiving the reflected light of the detection light projected by the light projecting unit 52a by the light receiving unit 52b. In the present embodiment, infrared light, that is, invisible light is used as the detection light.

投光部52aは、投光素子52cと、第1光路制限部材52dとを有する。投光素子52cはLED等であり、検知光を発することが可能である。第1光路制限部材52dは、投光素子52cの周りを囲むように配置される。第1光路制限部材52dは、投光素子52cが発した検知光が伝搬可能な光路(以下、検知光光路Sbという)を制限するためのものである。本実施形態の第1光路制限部材52dは、投光素子52cが発した検知光の一部を通過させるための第1スリット52eを有する。これにより、第1光路制限部材52dは、投光素子52cが発した検知光が伝搬可能な検知光光路Sbを第1スリット52eを通過する光路に制限する。   The light projecting unit 52a includes a light projecting element 52c and a first optical path limiting member 52d. The light projecting element 52c is an LED or the like, and can emit detection light. The first optical path limiting member 52d is disposed so as to surround the light projecting element 52c. The first optical path limiting member 52d is for limiting an optical path through which the detection light emitted from the light projecting element 52c can propagate (hereinafter referred to as a detection light optical path Sb). The first optical path limiting member 52d of the present embodiment has a first slit 52e for allowing a part of the detection light emitted from the light projecting element 52c to pass therethrough. Accordingly, the first optical path limiting member 52d limits the detection light optical path Sb through which the detection light emitted from the light projecting element 52c can propagate to an optical path that passes through the first slit 52e.

受光部52bは、受光素子52fと、第2光路制限部材52gとを有する。受光素子52fはフォトダイオード等であり、検知光を受光可能である。第2光路制限部材52gは、受光素子52fの周りを囲むように配置される。第2光路制限部材52gは、受光素子52fにより受光可能な検知光の反射光の光路(以下、反射光光路Scという)を制限するためのものである。本実施形態の第2光路制限部材52gには、検知光の反射光の一部を通過させるための第2スリット52hを有する。これにより、第2光路制限部材52gは、検知光の反射光が受光素子52fまで伝搬可能な反射光光路Scを第2スリット52hを通過する光路に制限する。   The light receiving unit 52b includes a light receiving element 52f and a second optical path limiting member 52g. The light receiving element 52f is a photodiode or the like and can receive detection light. The second optical path limiting member 52g is disposed so as to surround the light receiving element 52f. The second optical path limiting member 52g is for limiting the optical path of the reflected light of the detection light that can be received by the light receiving element 52f (hereinafter referred to as the reflected light optical path Sc). The second optical path limiting member 52g of the present embodiment has a second slit 52h for allowing a part of the reflected light of the detection light to pass therethrough. Accordingly, the second optical path limiting member 52g limits the reflected light optical path Sc through which the reflected light of the detection light can propagate to the light receiving element 52f to an optical path that passes through the second slit 52h.

以上の光電センサ52の検知エリアSaは、投光部52aが投光する検知光が伝搬可能な検知光光路Sbと、検知光の反射光が受光素子52fまで伝搬可能な反射光光路Scとが交差するエリアとなる。この検知エリアSaは、導光部材48に対して導光部材48の出射面48b側にあるように設定される。   The detection area Sa of the photoelectric sensor 52 described above includes a detection light optical path Sb through which the detection light projected by the light projecting unit 52a can propagate and a reflected light optical path Sc through which reflected light of the detection light can propagate to the light receiving element 52f. It will be an intersecting area. This detection area Sa is set so as to be on the emission surface 48 b side of the light guide member 48 with respect to the light guide member 48.

以上の投光部52a及び受光部52bの両方のセンサ要素52a、52bは、導光部材48に対して導光部材48の反射面48e側に配置される。このようなレイアウトのもと、光電センサ52は、導光部材48を透過する検知光を用いて、導光部材48に対して導光部材48の出射面48b側にある検知エリアSa内の被検知物を検知可能である。このとき、投光部52aは、導光部材48を反射面48eから出射面48bに向けて貫通するように透過する検知光を投光する。また、受光部52bは、導光部材48を出射面48bから反射面48eに向けて貫通するように透過する検知光の反射光を受光する。   The sensor elements 52 a and 52 b of both the light projecting unit 52 a and the light receiving unit 52 b are disposed on the reflective surface 48 e side of the light guide member 48 with respect to the light guide member 48. Under such a layout, the photoelectric sensor 52 uses the detection light transmitted through the light guide member 48 to cover the light guide member 48 in the detection area Sa on the emission surface 48b side of the light guide member 48. Detected objects can be detected. At this time, the light projecting unit 52a projects detection light that passes through the light guide member 48 so as to penetrate from the reflection surface 48e toward the emission surface 48b. In addition, the light receiving unit 52b receives reflected light of detection light that passes through the light guide member 48 so as to penetrate from the emission surface 48b toward the reflection surface 48e.

図6に戻り、光源54は、自らが発する光(以下、光源光という)により導光部材48を面発光させるためのものである。本実施形態の光源54は、導光部材48に対して導光部材48の反射面48e側に配置される。本実施形態の光源54は、チップ部品、つまり、表面実装型部品である。本実施形態の光源54は、LED、より詳しくは、発光色を変更可能なフルカラーLEDである。光源54は、光源54が発する光源光の光軸Laが導光部材48の入射面48aを通るように配置される。   Returning to FIG. 6, the light source 54 is for causing the light guide member 48 to emit light by light emitted by itself (hereinafter referred to as light source light). The light source 54 of the present embodiment is disposed on the reflective surface 48 e side of the light guide member 48 with respect to the light guide member 48. The light source 54 of the present embodiment is a chip component, that is, a surface mount type component. The light source 54 of the present embodiment is an LED, more specifically, a full color LED that can change the emission color. The light source 54 is disposed so that the optical axis La of the light source light emitted from the light source 54 passes through the incident surface 48 a of the light guide member 48.

本実施形態の複数の基板56、58は、全体として、導光部材48の延び方向Xに長い1つのリジッドフレキシブル基板を構成する。本実施形態の複数の基板56、58は、導光部材48の延び方向Xに間を置いて設けられる複数のリジッド基板56と、複数のリジッド基板56を接続するフレキシブル基板58とを有する。複数の基板56、58の主面にはICチップ等の複数の電子部品が実装される。   The plurality of substrates 56 and 58 of the present embodiment as a whole constitutes one rigid flexible substrate that is long in the extending direction X of the light guide member 48. The plurality of substrates 56 and 58 of the present embodiment include a plurality of rigid substrates 56 provided with an interval in the extending direction X of the light guide member 48, and a flexible substrate 58 that connects the plurality of rigid substrates 56. A plurality of electronic components such as IC chips are mounted on the main surfaces of the plurality of substrates 56 and 58.

リジッド基板56には、センサ用基板56−Aと、光源用基板56−Bとが含まれる。本実施形態では導光部材48の延び方向Xに間を置いて二つのセンサ用基板56−Aが配置される。   The rigid substrate 56 includes a sensor substrate 56-A and a light source substrate 56-B. In the present embodiment, two sensor substrates 56 -A are arranged with an interval in the extending direction X of the light guide member 48.

センサ用基板56−Aと光源用基板56−Bは、導光部材48に対して導光部材48の反射面48e側に配置される。センサ用基板56−Aの主面56aは、導光部材48の反射面48eと導光部材48の厚み方向Yに対向しており、その主面56aに光電センサ52を構成するセンサ要素52a、52bが設けられる。光源用基板56−Bの主面56aは、導光部材48の反射面48eと導光部材48の厚み方向Yに対向しており、その主面56aに光源54が実装される。   The sensor substrate 56 -A and the light source substrate 56 -B are disposed on the reflective surface 48 e side of the light guide member 48 with respect to the light guide member 48. The main surface 56a of the sensor substrate 56-A is opposed to the reflective surface 48e of the light guide member 48 and the thickness direction Y of the light guide member 48, and sensor elements 52a constituting the photoelectric sensor 52 on the main surface 56a, 52b is provided. The main surface 56a of the light source substrate 56-B faces the reflective surface 48e of the light guide member 48 in the thickness direction Y of the light guide member 48, and the light source 54 is mounted on the main surface 56a.

カラーシート60は、光電センサ52のセンサ要素52a、52bと導光部材48の間に配置される。カラーシート60は、導光部材48の反射面48eに重ね合わせられ、接着等により導光部材48に取り付けられる。カラーシート60は、透光性を持つとともに特定色に着色されている。本実施形態のカラーシート60は、可視光を遮断するとともに不可視光としての検知光を透過可能な素材を用いて黒色に着色されている。   The color sheet 60 is disposed between the sensor elements 52 a and 52 b of the photoelectric sensor 52 and the light guide member 48. The color sheet 60 is superimposed on the reflective surface 48e of the light guide member 48 and attached to the light guide member 48 by adhesion or the like. The color sheet 60 is translucent and colored with a specific color. The color sheet 60 of the present embodiment is colored black using a material that blocks visible light and transmits detection light as invisible light.

カラーシート60は、導光部材48の延び方向Xに延びる長尺体である。カラーシート60は、光電センサ52を構成するセンサ要素52a、52bとともにセンサ用基板56−Aを覆うように配置される。本実施形態のカラーシート60は、第1光電センサ52−Aや第2光電センサ52−Bを構成するセンサ要素52a、52bを覆うように配置される。本実施形態のカラーシート60は、図7に示すように、吐水管38の窓部38aを吐水管38の内側から覆うように配置される。   The color sheet 60 is a long body extending in the extending direction X of the light guide member 48. The color sheet 60 is disposed so as to cover the sensor substrate 56 -A together with the sensor elements 52 a and 52 b constituting the photoelectric sensor 52. The color sheet 60 of the present embodiment is disposed so as to cover the sensor elements 52a and 52b constituting the first photoelectric sensor 52-A and the second photoelectric sensor 52-B. The color sheet 60 of this embodiment is arrange | positioned so that the window part 38a of the water discharge pipe 38 may be covered from the inner side of the water discharge pipe 38, as shown in FIG.

図9は、発光装置10と関連する構成の機能ブロックを示すブロック図である。本図を用いて第1電気駆動弁26、第2電気駆動弁28も説明する。   FIG. 9 is a block diagram illustrating functional blocks of a configuration related to the light emitting device 10. The 1st electric drive valve 26 and the 2nd electric drive valve 28 are also demonstrated using this figure.

電気駆動弁26、28は、電磁弁、電動弁等である。第1電気駆動弁26は主水路18を開閉可能であり、第2電気駆動弁28はバイパス水路20を開閉可能である(図2も参照)。水回り機器12は、電気駆動弁26、28が開状態にあるときに吐水する吐水状態となり、電気駆動弁26、28が閉状態にあるときに吐水が停止する吐水停止状態となる。水回り機器12は、第1電気駆動弁26が開状態にあるとき、温度調整弁22により調整された温度、かつ、流量調整弁24により調整された流量の吐水流を吐き出す。水回り機器12は、第2電気駆動弁28が開状態にあるとき、温度及び流量が調整されていない冷水を吐水流として吐き出す。   The electrically driven valves 26 and 28 are electromagnetic valves, electric valves, and the like. The first electric drive valve 26 can open and close the main water passage 18, and the second electric drive valve 28 can open and close the bypass water passage 20 (see also FIG. 2). The water-circulating device 12 enters a water discharge state where water is discharged when the electrically driven valves 26, 28 are in the open state, and enters a water discharge stop state where water discharge stops when the electrically driven valves 26, 28 are in the closed state. When the first electric drive valve 26 is in the open state, the water-circulating device 12 discharges the water discharge flow at the temperature adjusted by the temperature adjustment valve 22 and the flow rate adjusted by the flow rate adjustment valve 24. When the second electric drive valve 28 is in the open state, the water-circulating device 12 discharges cold water whose temperature and flow rate are not adjusted as a discharge flow.

発光装置10は、光電センサ52と、光源54の他に、状態センサ64と、制御部66を備える。状態センサ64は、水回り機器12の動作状態を検出可能である。本実施形態の状態センサ64は、水回り機器12の動作状態として、水回り機器12が吐水状態にあるときの吐水流の水温を検出可能である。この状態センサ64はサーミスタ等の測温素子であり、給水路16に設置される。   The light emitting device 10 includes a state sensor 64 and a control unit 66 in addition to the photoelectric sensor 52 and the light source 54. The state sensor 64 can detect the operation state of the water-circulating device 12. The state sensor 64 of the present embodiment can detect the water temperature of the water discharge flow when the water supply device 12 is in the water discharge state as the operation state of the water supply device 12. The state sensor 64 is a temperature measuring element such as a thermistor and is installed in the water supply channel 16.

制御部66は、ワンチップマイクロコンピュータ等であり、CPU、RAM、ROM等を組み合わせて構成される。制御部66は、図示しないがリジッド基板56に実装される。制御部66は、光電センサ52の検知結果に応じて水回り機器12の動作を制御する。本実施形態の制御部66は、光電センサ52−A、52−Bの検知結果に応じて光電センサ52−A、52−Bに対応する電気駆動弁26、28を開閉するように制御する。なお、第1光電センサ52−Aは第1電気駆動弁26に対応し、第2光電センサ52−Bは第2電気駆動弁28に対応する。これにより、水回り機器12の動作状態が吐水状態と吐水停止状態との間で切り替えられる。   The control unit 66 is a one-chip microcomputer or the like, and is configured by combining a CPU, a RAM, a ROM, and the like. The controller 66 is mounted on the rigid board 56 (not shown). The controller 66 controls the operation of the water-circulating device 12 according to the detection result of the photoelectric sensor 52. The control unit 66 according to the present embodiment controls to open and close the electrically driven valves 26 and 28 corresponding to the photoelectric sensors 52-A and 52-B according to the detection results of the photoelectric sensors 52-A and 52-B. The first photoelectric sensor 52 -A corresponds to the first electric drive valve 26, and the second photoelectric sensor 52 -B corresponds to the second electric drive valve 28. Thereby, the operation state of the water supply device 12 is switched between the water discharge state and the water discharge stop state.

制御部66は、状態センサ64の検知結果に応じて、水回り機器12の動作に応じた発光態様で発光するように光源54を制御する。ここでの発光態様とは、光源54の発光色、発光時間、発光強度等である。本実施形態の制御部66は、吐水流の水温に応じた発光色で光源54が発光するように制御する。たとえば、制御部66は、吐水流の水温が低温から高温になるにつれて、光源54が青色→黄色→赤色と発光色が変化するように制御する。これに伴い、導光部材48の出射面48bは、光源54の発光態様に応じた態様で面発光する。本実施形態では、導光部材48の出射面48bは、吐水流の水温に応じて、光源54の発光色と同じ色で面発光することになる。   The control unit 66 controls the light source 54 so as to emit light in a light emission mode according to the operation of the water-circulating device 12 according to the detection result of the state sensor 64. Here, the light emission mode includes the light emission color, light emission time, light emission intensity, and the like of the light source 54. The control unit 66 of the present embodiment performs control so that the light source 54 emits light with an emission color corresponding to the water temperature of the discharged water flow. For example, the control unit 66 controls the light source 54 so that the emission color changes from blue to yellow to red as the water temperature of the discharged water flow changes from low to high. Accordingly, the emission surface 48 b of the light guide member 48 emits light in a manner corresponding to the light emission manner of the light source 54. In the present embodiment, the emission surface 48b of the light guide member 48 emits light in the same color as the light emission color of the light source 54 in accordance with the water temperature of the discharged water flow.

図10は、図7の導光部材48の一部の拡大図である。図11は、図10の導光部材48やケース50を導光部材48の出射面48b側から見た断面図である。図11の下側が導光部材48の後端48c側となり、図11の上側が導光部材48の前端48d側となる。   FIG. 10 is an enlarged view of a part of the light guide member 48 of FIG. FIG. 11 is a cross-sectional view of the light guide member 48 and the case 50 of FIG. 10 as viewed from the light exit surface 48 b side of the light guide member 48. The lower side of FIG. 11 is the rear end 48 c side of the light guide member 48, and the upper side of FIG. 11 is the front end 48 d side of the light guide member 48.

本実施形態の発光装置10では、導光部材48とは別体に設けられ、導光部材48の側面48mから出射した光Lcを導光部材48の内部に向けて反射可能な反射体68を備える。本実施形態の反射体68は、導光部材48の側面48mに対して透光層70を間において設けられるケース50の内面である。詳しくは、反射体68は、導光部材48の側面48mに対して透光層70を間において設けられる嵌込凹部50fの内側面50iである。本実施形態の反射体68は、導光部材48の幅方向両側の側面48mに対応して個別に設けられる。この反射体68は、導光部材48の側面48mの延び方向Xの後端部から前端部にかけての範囲で透光層70を間において設けられる。   In the light emitting device 10 of the present embodiment, a reflector 68 that is provided separately from the light guide member 48 and can reflect the light Lc emitted from the side surface 48 m of the light guide member 48 toward the inside of the light guide member 48. Prepare. The reflector 68 of the present embodiment is the inner surface of the case 50 provided with the light-transmitting layer 70 between the side surface 48 m of the light guide member 48. Specifically, the reflector 68 is the inner side surface 50i of the fitting recess 50f provided with the light transmitting layer 70 between the side surface 48m of the light guide member 48. The reflectors 68 of the present embodiment are individually provided corresponding to the side surfaces 48 m on both sides in the width direction of the light guide member 48. The reflector 68 is provided with a light transmissive layer 70 in the range from the rear end portion to the front end portion in the extending direction X of the side surface 48 m of the light guide member 48.

本実施形態での透光層70は、導光部材48の側面48mと反射体68の間に設けられる空気層である。この空気層は、本実施形態において、導光部材48の側面48mとケース本体50bの内側面50iとの間にある微少な空間として存在する。本実施形態の導光部材48は、ケース50との間に透光層70となる空気層が設けられるように、ケース50に接着等により取り付けられる。反射体68が一部に設けられるケース50は、この透光層70とは反射率が異なる素材を用いて構成される。本実施形態のケース50は、空気層より高い反射率の素材となるアクリル樹脂を用いて構成される。この反射率の違いに起因して、導光部材48から出射した光の一部を導光部材48の内部に向けて反射可能となる。なお、本実施形態において、導光部材48から出射した光の残部は、導光部材48の内部に向けて反射せず、ケース50の内面を透過することになる。   The light transmissive layer 70 in the present embodiment is an air layer provided between the side surface 48 m of the light guide member 48 and the reflector 68. In the present embodiment, this air layer exists as a minute space between the side surface 48m of the light guide member 48 and the inner side surface 50i of the case body 50b. The light guide member 48 of the present embodiment is attached to the case 50 by adhesion or the like so that an air layer serving as the light transmissive layer 70 is provided between the light guide member 48 and the case 50. The case 50 provided with a part of the reflector 68 is configured using a material having a reflectance different from that of the translucent layer 70. The case 50 of this embodiment is configured using an acrylic resin that is a material having a higher reflectance than the air layer. Due to the difference in reflectance, a part of the light emitted from the light guide member 48 can be reflected toward the inside of the light guide member 48. In the present embodiment, the remaining portion of the light emitted from the light guide member 48 does not reflect toward the inside of the light guide member 48 and passes through the inner surface of the case 50.

以上の発光装置10の動作を説明する。
図12は、導光部材48に光源光Lbを入射したときの動作を説明するための図である。光源54が光源光Lbを発すると、その光源光Lbは導光部材48の入射面48aに入射する。入射面48aから入射した光源光は導光部材48の内部で反射を伴い導光させられる。詳しくは、光源光は、導光部材48の内部で反射を伴い導光部材48の延び方向Xの後端部48fから前端部48kに向かう方向Pbに導光させられる。本実施形態では、入射面48aから入射した光源光は第2反射部48jで導光部材48の後端部48fから前端部48kに向かう方向Paに反射する。また、入射面48aから入射した光源光は、導光部材48の表面(出射面48b、反射面48e、側面48m)での全反射を伴い、導光部材48の内部を後端部48fから前端部48kに向けて導光させられる。
The operation of the light emitting device 10 will be described.
FIG. 12 is a diagram for explaining the operation when the light source light Lb is incident on the light guide member 48. When the light source 54 emits the light source light Lb, the light source light Lb enters the incident surface 48 a of the light guide member 48. The light source light incident from the incident surface 48 a is guided with reflection inside the light guide member 48. Specifically, the light source light is guided in a direction Pb from the rear end portion 48f of the light guide member 48 in the extending direction X toward the front end portion 48k with reflection inside the light guide member 48. In the present embodiment, the light source light incident from the incident surface 48a is reflected by the second reflecting portion 48j in the direction Pa from the rear end portion 48f of the light guide member 48 toward the front end portion 48k. The light source light incident from the incident surface 48a is totally reflected on the surface of the light guide member 48 (emission surface 48b, reflection surface 48e, side surface 48m), and the interior of the light guide member 48 is moved from the rear end portion 48f to the front end. The light is guided toward the portion 48k.

このとき、導光部材48の反射面48eに伝搬した光源光の一部は、出射面48bに向けて反射させられる。出射面48bに向けて伝搬してきた光源光のうち、出射面48bに対する入射角が臨界角を下回る光源光は出射面48bから方向Pcに出射する。これにより、導光部材48の入射面48aから入射した光源光Lbが導光部材48の内部で導光して出射面48bから面状に出射し、その出射面48bが面発光する。この導光部材48の出射面48bから出射した光源光Lbは、ケース50のケース本体50bを透過して外部に出射する。   At this time, a part of the light source light propagated to the reflection surface 48e of the light guide member 48 is reflected toward the emission surface 48b. Of the light source light propagating toward the emission surface 48b, the light source light whose incident angle with respect to the emission surface 48b is less than the critical angle is emitted from the emission surface 48b in the direction Pc. Thereby, the light source light Lb incident from the incident surface 48a of the light guide member 48 is guided inside the light guide member 48 and emitted from the emission surface 48b in a planar shape, and the emission surface 48b emits surface light. The light source light Lb emitted from the emission surface 48b of the light guide member 48 passes through the case body 50b of the case 50 and is emitted to the outside.

図8に示すように、光電センサ52の投光部52aが検知光を投光すると、その検知光は導光部材48を透過して出射面48bから出射する。導光部材48に対して導光部材48の出射面48b側にある検知エリアSaに被検知物がある場合、被検知物と検知光が当たることで反射光が生じる。この反射光の一部は、導光部材48を透過して受光部52bで受光させられる。光電センサ52は、投光部52aが投光した検知光の反射光を受光部52bで受光すると、検知エリアSaに被検知物があることを検知する。   As shown in FIG. 8, when the light projecting unit 52a of the photoelectric sensor 52 projects detection light, the detection light passes through the light guide member 48 and is emitted from the emission surface 48b. When there is an object to be detected in the detection area Sa on the light exit surface 48b side of the light guide member 48 with respect to the light guide member 48, reflected light is generated when the object to be detected hits the detection light. A part of the reflected light passes through the light guide member 48 and is received by the light receiving unit 52b. The photoelectric sensor 52 detects that there is an object to be detected in the detection area Sa when the light receiving unit 52b receives reflected light of the detection light projected by the light projecting unit 52a.

なお、光電センサ52が投光した検知光や、導光部材48を透過した反射光は、カラーシート60を透過する。また、光電センサ52が投光した検知光や、検知エリアSaで反射した反射光は、ケース50のケース本体50bを透過する。光電センサ52は、ケース本体50bを透過する検知光を用いて被検知物を検知しているともいえる。本実施形態の検知光や反射光や光源54の光源光は、ケース50を透過するとともに吐水管38の窓部38a(図3等参照)を通過するように伝搬する。   The detection light projected by the photoelectric sensor 52 and the reflected light transmitted through the light guide member 48 are transmitted through the color sheet 60. Further, the detection light projected by the photoelectric sensor 52 and the reflected light reflected by the detection area Sa are transmitted through the case body 50b of the case 50. It can be said that the photoelectric sensor 52 detects an object to be detected using detection light transmitted through the case body 50b. The detection light, reflected light, and light source light of the light source 54 of the present embodiment propagate so as to pass through the case 50 and pass through the window 38 a (see FIG. 3 and the like) of the water discharge pipe 38.

ここで、発光装置10は、導光部材48の側面48mから出射する光を導光部材48の内部に向けて反射させる反射体68を備える。よって、導光部材48の側面48mから出射した光源光の一部は反射体68により導光部材48の内部に向けて反射する。導光部材48の内部に向けて反射した光源光の一部は、導光部材48の内部に一部が入射し、その導光部材48の内部で反射を経て出射面48bから出射する。   Here, the light emitting device 10 includes a reflector 68 that reflects the light emitted from the side surface 48 m of the light guide member 48 toward the inside of the light guide member 48. Therefore, a part of the light source light emitted from the side surface 48 m of the light guide member 48 is reflected toward the inside of the light guide member 48 by the reflector 68. A part of the light source light reflected toward the inside of the light guide member 48 is incident on the inside of the light guide member 48, is reflected inside the light guide member 48, and is emitted from the emission surface 48b.

以上の発光装置10の効果を説明する。
発光装置10は、導光部材48の側面48mから出射する光を導光部材48の内部に向けて反射させる反射体68を備える。よって、導光部材48の出射面48b以外の箇所から出射する光源光の一部を導光部材48の内部に戻すことで、出射面48bから出射する光源光の光量を増大させることができ、導光部材48の発光効率を高められる。これに伴い、導光部材48の発光効率の低下を抑制しつつ、導光部材48を大型化できる。
The effects of the light emitting device 10 will be described.
The light emitting device 10 includes a reflector 68 that reflects the light emitted from the side surface 48 m of the light guide member 48 toward the inside of the light guide member 48. Therefore, by returning a part of the light source light emitted from a place other than the emission surface 48b of the light guide member 48 to the inside of the light guide member 48, the amount of the light source light emitted from the emission surface 48b can be increased. The light emission efficiency of the light guide member 48 can be increased. Accordingly, the light guide member 48 can be increased in size while suppressing a decrease in the light emission efficiency of the light guide member 48.

また、導光部材48はケース50に収容されるため、導光部材48を外部の物体との接触から保護でき、その接触に伴う損耗を防止するとともに、その損耗に伴う光学特性の変化を防止できる。   Further, since the light guide member 48 is accommodated in the case 50, the light guide member 48 can be protected from contact with an external object, and wear caused by the contact is prevented, and a change in optical characteristics due to the wear is prevented. it can.

また、導光部材48の反射面48eまで伝搬した光源光は反射面48eにより出射面48bに向けて反射するため、その反射面48eから導光部材48の外部に漏れ難い。一方、導光部材48の側面48mは、通常、そこに伝搬した光を反射させるための部位がないため、そこから外部に光源光が漏れ易い。本実施形態では、このように光源光が漏れ易い箇所から出射する光源光の一部を導光部材48の内部に戻せるため、より効果的に導光部材48の発光効率を高められる。   Further, since the light source light propagated to the reflection surface 48e of the light guide member 48 is reflected toward the emission surface 48b by the reflection surface 48e, it is difficult to leak from the reflection surface 48e to the outside of the light guide member 48. On the other hand, since the side surface 48m of the light guide member 48 normally has no part for reflecting the light propagated there, the light source light is likely to leak outside from there. In the present embodiment, since part of the light source light emitted from the portion where the light source light is likely to leak can be returned to the inside of the light guide member 48, the light emission efficiency of the light guide member 48 can be improved more effectively.

また、反射体68は、導光部材48に対して透光層70を間において設けられるケース50の内面である。よって、ケース50とは別体の反射体68を用いる必要がなくなり、部品点数の削減を図れる。   Further, the reflector 68 is an inner surface of the case 50 provided with the light transmitting layer 70 between the light guide member 48. Therefore, it is not necessary to use the reflector 68 separate from the case 50, and the number of parts can be reduced.

また、透光層70は空気層である。よって、透光層70を構成する部材を用いる必要がなくなり、部品点数の削減を図れる。   The light transmissive layer 70 is an air layer. Therefore, it is not necessary to use a member constituting the light transmissive layer 70, and the number of parts can be reduced.

また、反射体68はケース50の嵌込凹部50fの内側面50iである。よって、ケース50の嵌込凹部50fを用いて導光部材48を位置決めしつつ、反射体68がある構造を簡易に実現できる。   The reflector 68 is the inner side surface 50 i of the fitting recess 50 f of the case 50. Therefore, the structure with the reflector 68 can be easily realized while positioning the light guide member 48 using the fitting recess 50f of the case 50.

導光部材48を収容するケース本体50bは、導光部材48の出射面48bから出射する光源光が透過可能であり、単色の透光性素材を用いて構成される。また、光電センサ52は、ケース本体50bを透過する検知光を用いて被検知物を検知する。つまり、検知光の透過箇所と光源光の透過箇所が同じ単色の透光性素材を用いたケース本体50bにより構成されることになる。かりに、ケース本体50bの検知光の透過箇所と光源光の透過箇所を別々の透光性素材を用いて構成する場合、二色成形を用いると応力割れが懸念される。この点、本実施形態のケース本体50bでは検知光の透過箇所と光源光の透過箇所が同じ単色の透光性素材を用いて構成されるため、二色成形に伴う応力割れの影響を排除できる。   The case main body 50b that accommodates the light guide member 48 is capable of transmitting light source light emitted from the light emission surface 48b of the light guide member 48, and is configured using a single-color translucent material. Further, the photoelectric sensor 52 detects an object to be detected using detection light that passes through the case main body 50b. That is, the transmission part of the detection light and the transmission part of the light source light are configured by the case main body 50b using the same monochromatic translucent material. However, when the transmission part of the detection light and the transmission part of the light source light of the case main body 50b are configured using different translucent materials, there is a concern about stress cracking when two-color molding is used. In this respect, in the case main body 50b of the present embodiment, the transmission portion of the detection light and the transmission portion of the light source light are configured using the same single color translucent material, so that it is possible to eliminate the influence of stress cracking associated with two-color molding. .

(第2の実施の形態)
図13は、第2実施形態の導光部材48を模式的に示す側面図である。本図では導光部材48の反射面48eの延び方向Xでの位置に応じた表面粗さ[Ra]を併せて示す。反射面48eの表面粗さは、入射面48aから導光部材48の延び方向Xに離れるにつれて大きくなるように形成される。本実施形態の反射面48eの表面粗さは、入射面48aから離れるにつれて、連続的に大きくなるように形成される例を示すが、段階的に大きくなるように形成されてもよい。反射面48eの表面粗さは、導光部材48の延び方向Xの後端部48fで最小の第3表面粗さR3となり、延び方向Xの前端部48kで最大の第4表面粗さR4となる。この理由を説明する。
(Second Embodiment)
FIG. 13 is a side view schematically showing the light guide member 48 of the second embodiment. In this figure, the surface roughness [Ra] corresponding to the position in the extending direction X of the reflecting surface 48e of the light guide member 48 is also shown. The surface roughness of the reflecting surface 48e is formed so as to increase as the distance from the incident surface 48a in the extending direction X of the light guide member 48 increases. Although the surface roughness of the reflective surface 48e of this embodiment shows the example formed so that it may become large continuously as it leaves | separates from the incident surface 48a, it may be formed so that it may increase in steps. The surface roughness of the reflecting surface 48e is the smallest third surface roughness R3 at the rear end 48f in the extending direction X of the light guide member 48, and the largest fourth surface roughness R4 at the front end 48k in the extending direction X. Become. The reason for this will be explained.

反射面48eの入射面48aに近い箇所には大光量の光が伝搬する。一方、反射面48eの入射面48aから遠い箇所には光の減衰により小光量の光が伝搬する。本実施形態では、大光量の光の伝搬箇所では反射面48eの表面粗さを小さくし、小光量の光の伝搬箇所では反射面48eの表面粗さを大きくしている。よって、反射面48eから出射面48bに向けて拡散反射する光の光量分布を導光部材48の延び方向Xで均一にし易くなる。これに伴い、出射面48bから出射する光の光量分布も導光部材48の延び方向Xで均一にし易くなり、出射面48bの延び方向Xでの光むらを抑制できる。   A large amount of light propagates to a portion of the reflecting surface 48e close to the incident surface 48a. On the other hand, a small amount of light propagates to the part of the reflecting surface 48e far from the incident surface 48a due to light attenuation. In the present embodiment, the surface roughness of the reflection surface 48e is reduced at the propagation point of the large amount of light, and the surface roughness of the reflection surface 48e is increased at the propagation point of the light of the small amount of light. Therefore, the light quantity distribution of light diffusely reflected from the reflection surface 48e toward the emission surface 48b can be easily made uniform in the extending direction X of the light guide member 48. Accordingly, the light amount distribution of the light emitted from the emission surface 48b is also easily made uniform in the extending direction X of the light guide member 48, and the light unevenness in the extending direction X of the emission surface 48b can be suppressed.

なお、反射面48eの表面粗さは、導光部材48の延び方向Xでの位置によらず同程度の大きさにしてもよい。また、本実施形態と第2実施形態の内容を組み合わせてもよい。   Note that the surface roughness of the reflecting surface 48e may be approximately the same regardless of the position of the light guide member 48 in the extending direction X. Moreover, you may combine the content of this embodiment and 2nd Embodiment.

以上、本発明の実施形態の例について詳細に説明した。前述した実施形態は、いずれも本発明を実施するにあたっての具体例を示したものにすぎない。実施形態の内容は、本発明の技術的範囲を限定するものではなく、請求の範囲に規定された発明の思想を逸脱しない範囲において、構成要素の変更、追加、削除等の多くの設計変更が可能である。前述の実施形態では、このような設計変更が可能な内容に関して、「実施形態の」「実施形態では」等との表記を付して強調しているが、そのような表記のない内容でも設計変更が許容される。また、図面の断面に付したハッチングは、ハッチングを付した対象の材質を限定するものではない。   In the above, the example of embodiment of this invention was demonstrated in detail. The above-described embodiments are merely specific examples for carrying out the present invention. The contents of the embodiments do not limit the technical scope of the present invention, and many design changes such as changes, additions, deletions, etc. of constituent elements are possible without departing from the spirit of the invention defined in the claims. Is possible. In the above-described embodiment, contents that can be changed in this way are emphasized with the notation of “embodiment”, “in the embodiment”, etc. Changes are allowed. Moreover, the hatching given to the cross section of drawing does not limit the material of the hatched object.

水回り機器12は吐水装置を例に説明したが、その具体例は特に限定されない。ここでの水回り機器とは水回りに用いられる機器である。本発明の適用の対象となる水回り機器は、たとえば、便器、浴槽、洗面台、手洗い器等も含まれる。   Although the water-circulating device 12 has been described by taking the water discharging device as an example, the specific example is not particularly limited. The watering device here is a device used around the water. Examples of watering devices to which the present invention is applied include toilets, bathtubs, washstands, hand-washers, and the like.

吐水管38は、内部通路42が形成される外部部材の一例であり、ヘッドホルダー40は内部通路42に配置され、発光装置10を支持する内部部材の一例として説明した。外部部材と内部部材の具体例はこれらに限定されない。   The water discharge pipe 38 is an example of an external member in which the internal passage 42 is formed, and the head holder 40 is disposed in the internal passage 42 and has been described as an example of an internal member that supports the light emitting device 10. Specific examples of the external member and the internal member are not limited to these.

導光部材48は入射面48aから入射した光を内部で導光させ、出射面48bから出射させることが可能であれば、その具体的な形状は特に限定されない。導光部材48は表示ランプとして用いられる例を説明したが、その用途は特に限定されず、照明等として用いられてもよい。   The specific shape of the light guide member 48 is not particularly limited as long as light incident from the incident surface 48a can be guided inside and emitted from the output surface 48b. The example in which the light guide member 48 is used as a display lamp has been described, but the use thereof is not particularly limited, and may be used as illumination or the like.

導光部材48の第1反射部48hは粗面である例を説明したが、入射面48aから入射させた光を出射面48b側に向けて反射可能であれば、その具体例は特に限定されない。たとえば、第1反射部48hは、スクリーン印刷等により得られるドットパターン等でもよい。   Although the example in which the first reflecting portion 48h of the light guide member 48 is a rough surface has been described, the specific example is not particularly limited as long as the light incident from the incident surface 48a can be reflected toward the emission surface 48b. . For example, the first reflecting portion 48h may be a dot pattern obtained by screen printing or the like.

導光部材48の入射面48aは、導光部材48の反射面側を向くように設けられる例を説明した。この他にも、導光部材48の入射面48aは、導光部材48の延び方向Xや幅方向Zを向くように設けられてもよい。   The example in which the incident surface 48a of the light guide member 48 is provided so as to face the reflective surface side of the light guide member 48 has been described. In addition, the incident surface 48 a of the light guide member 48 may be provided so as to face the extending direction X or the width direction Z of the light guide member 48.

光電センサ52は第1光電センサ52−Aと第2光電センサ52−Bが含まれる例を説明したが、その数は特に限定されない。光電センサ52の投光部52a及び受光部52bの両方のセンサ要素52a、52bが導光部材48に対して導光部材48の反射面48e側に配置される例を説明した。これに限定されず、いずれか一方のセンサ要素52a、52bのみが導光部材48に対して導光部材48の反射面48e側に配置されてもよい。また、光電センサ52はなくともよい。   Although the photoelectric sensor 52 demonstrated the example in which the 1st photoelectric sensor 52-A and the 2nd photoelectric sensor 52-B were included, the number is not specifically limited. The example in which the sensor elements 52 a and 52 b of both the light projecting unit 52 a and the light receiving unit 52 b of the photoelectric sensor 52 are disposed on the reflective surface 48 e side of the light guide member 48 with respect to the light guide member 48 has been described. Without being limited thereto, only one of the sensor elements 52 a and 52 b may be disposed on the reflective surface 48 e side of the light guide member 48 with respect to the light guide member 48. Further, the photoelectric sensor 52 may not be provided.

センサ用基板56−Aと光源用基板56−Bとは別体である例を説明したが、これらが同じ基板の一部として設けられてもよい。センサ用基板56−Aの主面と光源用基板56−Bの主面は導光部材48の反射面48eと対向する例を説明したが、その配置態様は特に限定されない。たとえば、光源用基板56−Bの主面は導光部材48の延び方向Xや幅方向Zの側面と対向してもよい。   Although an example in which the sensor substrate 56-A and the light source substrate 56-B are separate has been described, they may be provided as part of the same substrate. The example in which the main surface of the sensor substrate 56-A and the main surface of the light source substrate 56-B are opposed to the reflection surface 48e of the light guide member 48 has been described, but the arrangement mode is not particularly limited. For example, the main surface of the light source substrate 56 -B may face the side surface in the extending direction X or the width direction Z of the light guide member 48.

光源54は、その具体例について特に限定されず、たとえば、有機EL等でもよい。また、光源54は、発光色を変更可能でなくともよい。光源54は表面実装型部品を用いる例を説明したが、その電子部品の種類は特に限定されない。光源54は、たとえば、リード部品を用いてもよい。   The light source 54 is not particularly limited in its specific example, and may be an organic EL, for example. Further, the light source 54 may not be able to change the emission color. Although the example which uses surface mount type components was demonstrated for the light source 54, the kind of the electronic component is not specifically limited. For example, a lead component may be used as the light source 54.

カラーシート60はなくともよい。また、カラーシート60の色は特に限定されず、たとえば、赤色、青色、黄色等に着色されていてもよい。   The color sheet 60 may not be provided. Moreover, the color of the color sheet 60 is not specifically limited, For example, you may be colored red, blue, yellow, etc.

反射体68は、導光部材48の側面から出射する光を導光部材48の内部に向けて反射させる例を説明したが、導光部材48の出射面48b以外の表面から出射する光を導光部材48の内部に向けて反射可能であればよい。たとえば、導光部材48の反射面48eから出射する光を反射させてもよい。   In the example of the reflector 68, the light emitted from the side surface of the light guide member 48 is reflected toward the inside of the light guide member 48. However, the light emitted from the surface other than the emission surface 48b of the light guide member 48 is guided. What is necessary is just to be able to reflect toward the inside of the optical member 48. For example, the light emitted from the reflecting surface 48e of the light guide member 48 may be reflected.

反射体68は、ケース50の嵌込凹部50fの内側面50iである例を説明したが、ケース50の内面の他の箇所でもよい。また、反射体68は、ケース50とは別部材を用いて構成されてもよい。   Although the reflector 68 demonstrated the example which is the inner surface 50i of the insertion recessed part 50f of the case 50, the other location of the inner surface of the case 50 may be sufficient. The reflector 68 may be configured using a member different from the case 50.

透光層70は空気層を例に説明したが、空気層とは別の透光性素材を用いて構成されてもよい。   Although the light transmissive layer 70 has been described by taking the air layer as an example, it may be configured using a light transmissive material different from the air layer.

ケース本体50bは、導光部材48の収容箇所と出射光の透光箇所を個別の素材を用いて構成されてもよい。   The case main body 50b may be configured by using separate materials for the accommodation location of the light guide member 48 and the transmission location of the emitted light.

以上の実施形態、変形例により具体化される発明を一般化すると、以下の技術的思想が導かれる。以下、発明が解決しようとする課題に記載の態様を用いて説明する。   Generalizing the invention embodied by the above embodiments and modifications leads to the following technical idea. Hereinafter, description will be made by using aspects described in the problems to be solved by the invention.

第2態様の水回り機器は、第1態様において、前記導光部材は、前記出射面とは表裏反対側に設けられ、前記入射面から入射させた光を前記出射面に向けて反射可能な反射面を有し、前記反射体は、前記導光部材の側面から出射する光を前記導光部材の内部に向けて反射させてもよい。
導光部材の反射面まで伝搬した光は反射面により出射面に向けて反射するため、その反射面から導光部材の外部に漏れ難い。一方、導光部材の側面は、通常、そこに伝搬した光を反射させるための部位がないため、そこから外部に光源光が漏れ易い。本態様によれば、このように光が漏れ易い箇所から出射する光の一部を導光部材の内部に戻せるため、より効果的に導光部材の発光効率を高められる。
In the water-circulating device according to the second aspect, in the first aspect, the light guide member is provided on the opposite side of the emission surface, and can reflect the light incident from the incident surface toward the emission surface. It has a reflective surface, and the reflector may reflect light emitted from the side surface of the light guide member toward the inside of the light guide member.
Since the light that has propagated to the reflection surface of the light guide member is reflected toward the exit surface by the reflection surface, it is difficult to leak from the reflection surface to the outside of the light guide member. On the other hand, the side surface of the light guide member usually does not have a part for reflecting the light propagated there, so that the light source light easily leaks from there. According to this aspect, since a part of the light emitted from the portion where light easily leaks can be returned to the inside of the light guide member, the light emission efficiency of the light guide member can be more effectively increased.

第3態様の水回り機器は、第1または第2態様において、前記反射体は、前記導光部材に対して透光層を間において設けられる前記ケースの内面であってもよい。
第3態様によれば、ケースとは別体の反射体を用いる必要がなくなり、部品点数の削減を図れる。
In the water-circulating device according to the third aspect, in the first or second aspect, the reflector may be an inner surface of the case provided with a light-transmitting layer therebetween with respect to the light guide member.
According to the third aspect, it is not necessary to use a reflector separate from the case, and the number of parts can be reduced.

第4態様の水回り機器は、第3態様において、前記透光層は空気層であってもよい。
第4態様によれば、透光層を構成する部材を用いる必要がなくなり、部品点数の削減を図れる。
In the water-circulating device according to the fourth aspect, in the third aspect, the light-transmitting layer may be an air layer.
According to the 4th aspect, it becomes unnecessary to use the member which comprises a translucent layer, and reduction of a number of parts can be aimed at.

第5態様の水回り機器は、第3または第4態様において、前記ケースは、前記導光部材が嵌め込まれる嵌込凹部を有し、前記反射体は、前記嵌込凹部の内側面であってもよい。
第5態様によれば、ケースの嵌込凹部を用いて導光部材を位置決めしつつ、反射体がある構造を簡易に実現できる
The water supply device according to the fifth aspect is the third or fourth aspect, wherein the case has a fitting recess into which the light guide member is fitted, and the reflector is an inner surface of the fitting depression. Also good.
According to the fifth aspect, it is possible to easily realize a structure with a reflector while positioning the light guide member using the fitting recess of the case.

第6態様の水回り機器は、第1から第5態様のいずれかにおいて、前記出射面は、前記導光部材の一端から他端に向かう延び方向に沿って設けられ、前記導光部材は、前記出射面とは表裏反対側に設けられ、前記入射面から入射した光を前記出射面に向けて反射可能な反射面を有し、前記反射面の表面粗さは、前記入射面から前記延び方向に離れるにつれて大きくなるように形成されてもよい。   In the water-circulating device according to the sixth aspect, in any one of the first to fifth aspects, the emission surface is provided along an extending direction from one end of the light guide member to the other end. The reflective surface is provided on the opposite side of the light exit surface, and can reflect the light incident from the light incident surface toward the light exit surface, and the surface roughness of the light reflective surface extends from the light incident surface. You may form so that it may become large as it leaves | separates in a direction.

第7態様の水回り機器は、第1から第6態様のいずれかにおいて、投光部が投光した検知光の反射光を受光部が受光することで被検知物を検知可能な光電センサを備え、前記ケースは、前記導光部材及び前記光電センサを収容し、前記出射面から出射する光を透過可能であり、単色の透光性素材を用いて構成されるケース本体と、前記ケース本体の内部空間を封止する封止部材とを有し、前記光電センサは、前記ケース本体を透過する検知光を用いて前記被検知物を検知してもよい。
第7態様によれば、検知光の透過箇所と導光部材の出射面から出射する光の透過箇所が同じ単色の透光性素材を用いて構成される。かりに、これらを別々の透光性素材を用いて構成する場合、二色成形を用いると応力割れが懸念される。この点、本態様によれば、二色成形に伴う応力割れの影響を排除できる。
In any one of the first to sixth aspects, the water-circulating device according to the seventh aspect is a photoelectric sensor capable of detecting an object to be detected by receiving the reflected light of the detection light projected by the light projecting unit. A case main body configured to contain the light guide member and the photoelectric sensor and transmit light emitted from the emission surface, and configured using a single-color translucent material; and the case main body. The photoelectric sensor may detect the object to be detected using detection light that passes through the case body.
According to the 7th aspect, the permeation | transmission location of the detection light and the permeation | transmission location of the light radiate | emitted from the output surface of a light guide member are comprised using the same monochromatic translucent material. However, when these are formed using different translucent materials, there is a concern about stress cracking when two-color molding is used. In this respect, according to this aspect, it is possible to eliminate the influence of stress cracking associated with two-color molding.

10…発光装置、12…水回り機器、30…機器本体、48…導光部材、48a…入射面、48b…出射面、48e…反射面、48m…側面、50…ケース、50b…ケース本体、50c…封止部材、50f…嵌込凹部、50i…内側面、52…光電センサ、52a…投光部、52b…受光部、68…反射体、70…透光層。 DESCRIPTION OF SYMBOLS 10 ... Light-emitting device, 12 ... Water supply apparatus, 30 ... Apparatus main body, 48 ... Light guide member, 48a ... Incident surface, 48b ... Outgoing surface, 48e ... Reflective surface, 48m ... Side surface, 50 ... Case, 50b ... Case main body, 50c ... sealing member, 50f ... fitting recess, 50i ... inner surface, 52 ... photoelectric sensor, 52a ... light projecting part, 52b ... light receiving part, 68 ... reflector, 70 ... translucent layer.

Claims (7)

発光装置を備える水回り機器であって、
前記発光装置は、
入射面から入射した光を内部で導光させ、出射面から出射させることが可能な導光部材と、
前記導光部材を収容し、前記出射面から出射する光が透過可能なケースと、
前記導光部材の前記出射面以外の表面から出射する光を前記導光部材の内部に向けて反射可能な反射体と、を備える水回り機器。
A watering device equipped with a light emitting device,
The light emitting device
A light guide member capable of guiding light incident from the incident surface inside and emitting the light from the output surface;
A case that houses the light guide member and is capable of transmitting light emitted from the exit surface;
A watering device comprising: a reflector capable of reflecting light emitted from a surface other than the emission surface of the light guide member toward the inside of the light guide member.
前記導光部材は、前記出射面とは表裏反対側に設けられ、前記入射面から入射させた光を前記出射面に向けて反射可能な反射面を有し、
前記反射体は、前記導光部材の側面から出射する光を前記導光部材の内部に向けて反射させる請求項1に記載の水回り機器。
The light guide member is provided on the opposite side of the emission surface, and has a reflection surface capable of reflecting the light incident from the incidence surface toward the emission surface,
The water-circulating device according to claim 1, wherein the reflector reflects light emitted from a side surface of the light guide member toward the inside of the light guide member.
前記反射体は、前記導光部材に対して透光層を間において設けられる前記ケースの内面である請求項1または2に記載の水回り機器。   3. The watering device according to claim 1, wherein the reflector is an inner surface of the case provided with a light-transmitting layer therebetween with respect to the light guide member. 前記透光層は空気層である請求項3に記載の水回り機器。   The water-circulating device according to claim 3, wherein the light transmitting layer is an air layer. 前記ケースは、前記導光部材が嵌め込まれる嵌込凹部を有し、
前記反射体は、前記嵌込凹部の内側面である請求項3または4に記載の水回り機器。
The case has a fitting recess into which the light guide member is fitted,
The watering device according to claim 3 or 4, wherein the reflector is an inner surface of the fitting recess.
前記出射面は、前記導光部材の一端から他端に向かう延び方向に沿って設けられ、
前記導光部材は、前記出射面とは表裏反対側に設けられ、前記入射面から入射した光を前記出射面に向けて反射可能な反射面を有し、
前記反射面の表面粗さは、前記入射面から前記延び方向に離れるにつれて大きくなるように形成される請求項1から5のいずれかに記載の水回り機器。
The exit surface is provided along an extending direction from one end of the light guide member to the other end,
The light guide member is provided on the opposite side of the emission surface, and has a reflection surface capable of reflecting light incident from the incidence surface toward the emission surface,
The surface-roughening device according to any one of claims 1 to 5, wherein the surface roughness of the reflecting surface is formed so as to increase with distance from the incident surface in the extending direction.
投光部が投光した検知光の反射光を受光部が受光することで被検知物を検知可能な光電センサを備え、
前記ケースは、
前記導光部材及び前記光電センサを収容し、前記出射面から出射する光を透過可能であり、単色の透光性素材を用いて構成されるケース本体と、
前記ケース本体の内部空間を封止する封止部材とを有し、
前記光電センサは、前記ケース本体を透過する検知光を用いて前記被検知物を検知する請求項1から6のいずれかに記載の水回り機器。
Provided with a photoelectric sensor that can detect the object to be detected by the light receiving unit receiving reflected light of the detection light projected by the light projecting unit,
The case is
A case main body that contains the light guide member and the photoelectric sensor, is capable of transmitting light emitted from the emission surface, and is configured using a single-color translucent material;
A sealing member for sealing the internal space of the case body,
The said photoelectric sensor is a watering apparatus in any one of Claim 1 to 6 which detects the said to-be-detected object using the detection light which permeate | transmits the said case main body.
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3067542U (en) * 1999-09-20 2000-04-07 株式会社ネックス Automatic faucet for hand washing
JP2004301822A (en) * 2003-03-20 2004-10-28 Denso Corp Lighting system for display for vehicle
JP2006274573A (en) * 2005-03-28 2006-10-12 Inax Corp Facility with optical sensor
JP2011153408A (en) * 2010-01-26 2011-08-11 Lixil Corp Water supply product
JP2012064420A (en) * 2010-09-16 2012-03-29 Casio Computer Co Ltd Light source device and manufacturing method of the same
JP2014055460A (en) * 2012-09-13 2014-03-27 Panasonic Corp Toilet bowl device
JP2016141962A (en) * 2015-01-30 2016-08-08 株式会社Lixil Water discharge device and sensor member

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3067542U (en) * 1999-09-20 2000-04-07 株式会社ネックス Automatic faucet for hand washing
JP2004301822A (en) * 2003-03-20 2004-10-28 Denso Corp Lighting system for display for vehicle
JP2006274573A (en) * 2005-03-28 2006-10-12 Inax Corp Facility with optical sensor
JP2011153408A (en) * 2010-01-26 2011-08-11 Lixil Corp Water supply product
JP2012064420A (en) * 2010-09-16 2012-03-29 Casio Computer Co Ltd Light source device and manufacturing method of the same
JP2014055460A (en) * 2012-09-13 2014-03-27 Panasonic Corp Toilet bowl device
JP2016141962A (en) * 2015-01-30 2016-08-08 株式会社Lixil Water discharge device and sensor member

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