以下，針對實施形態一邊參照圖式一邊進行說明。又，以下所說明之實施形態任一者皆為顯示概括性或具體性之例者。以下之實施形態所示之數值、形狀、材料、構成要素、構成要素之配置位置及連接形態、步驟、步驟之順序等是一例，而不是限定本發明之主旨。又，針對以下之實施形態之構成要素中之未記載於表示最上位概念之獨立請求項中之構成要素，係以任意之構成要素進行說明。 另外，各圖係示意圖，不一定係嚴密地圖示者。此外，在各圖中，有針對實質上為相同之構成賦予相同之符號，而將重複之說明省略或簡略化之情形。 (實施形態) ［照明系統之整體構成］ 首先，針對實施形態之照明系統之整體構成進行說明。圖1係構成實施形態之照明系統之機器之外觀圖。圖2係顯示實施形態之照明系統之功能構成之方塊圖。 如圖1及圖2所示般，實施形態之照明系統100具備：資訊終端10、照明器具20、壁面開關30、及遙控器40。照明系統100可具備2個以上之照明器具20。又，在圖2中，亦圖示有電力系統50。 在照明系統100中，藉由將資訊終端10登錄於照明器具20，而使用者可通過資訊終端10控制照明器具20。此處，在照明系統100中，將對配置於照明器具20所照明之室內之操作裝置之操作設為登錄要件以免照明系統100之使用者以外之其他使用者之資訊終端被誤登錄於照明器具20。操作裝置具體而言係壁面開關30、或照明器具20專用之遙控器40。以下，一邊參照圖2一邊針對各裝置詳細地進行說明。 ［資訊終端］ 資訊終端10係在照明系統100中成為對照明器具20之登錄之對象的裝置。資訊終端10具體而言係智慧型手機，亦可為平板終端等之其他資訊終端。資訊終端10具備：操作受理部11、控制部12、電波通信部13、及記憶部14。 操作受理部11係受理用於進行資訊終端10之登錄之使用者之操作的使用者介面。操作受理部11具體而言係包含觸控面板及顯示部之GUI(Graphical User Interface，圖形使用者介面)，亦可含有硬體鍵(按鈕)。 控制部12係執行資訊終端10之各種控制之裝置。控制部12例如使顯示部顯示上述GUI所使用之圖像。又，控制部12若藉由操作受理部11受理了用於進行資訊終端10之登錄的使用者之操作，則使電波通信部13發送登錄請求。登錄請求係用於將資訊終端10作為控制照明器具20之機器而登錄之資訊(信號)。控制部12具體而言係藉由處理器、微電腦、或專用電路而實現。控制部12亦可藉由處理器、微電腦、及專用電路中2個以上之組合而實現。 電波通信部13係與照明器具20之電波通信部21a進行使用電波之無線通信之通信模組(通信電路)。電波通信部13例如基於控制部12之控制朝電波通信部21a無線發送登錄請求。又，使用電波之無線通信與使用可視光及紅外線等之光之無線通信不同。 作為利用電波通信部13進行之無線通信之規格(協定)可例示ZigBee(註冊商標)、Bluetooth(註冊商標)、或無線LAN(Local Area Network，區域網路)等，但無線通信之規格並不特別限定。又，針對無線通信所使用之電波之頻帶亦非特別限定。 記憶部14係記憶有由控制部12執行之程式、及資訊終端10本身之ID資訊(第2 ID資訊)等之記憶裝置。ID資訊係例如SSID(Service Set Identifier，服務集標識符)。記憶部14具體而言係藉由半導體記憶體等實現。記憶部14可包含於控制部12。 又，如後所述，記憶部14包含用於記憶照明器具20之ID資訊(第1 ID資訊)之暫時記憶區域及確定記憶區域此2個區域。該等2個區域既可為被邏輯性分開之區域，亦可為被實體性分開之區域。當2個區域被實體性分開時，暫時記憶區域係例如具有揮發性之記憶區域，確定記憶區域係例如具有非揮發性之記憶區域。 ［照明器具］ 其次，針對照明器具20進行說明。照明器具20係例如發白色光之室內照明用之吸頂燈。又，針對照明器具20之具體之構成並不特別限定。照明器具20既可為長條狀之吸頂燈，亦可為下照燈或聚光燈等。照明器具20具備：電波通信部21a、光通信部21b、控制部22、記憶部23、計時部24、電力轉換部25、蓄電部26、調光電路27、及發光部28。 電波通信部21a係與資訊終端10之電波通信部13進行使用電波之無線通信之通信模組(通信電路)。電波通信部21a例如自資訊終端10取得登錄請求。亦即，電波通信部21a係取得部之一例。由電波通信部21a進行之無線通信之規格與電波通信部13同樣並無特別限定。 光通信部21b係接收自遙控器40藉由紅外線通信發送之控制信號(紅外線)之受光裝置。 控制部22係執行照明器具20之各種控制之裝置。控制部22具體而言係藉由處理器、微電腦、或專用電路而實現。控制部22亦可藉由處理器、微電腦、及專用電路中2個以上之組合而實現。控制部22具有：檢測部22a、登錄部22b、及發光控制部22c。檢測部22a、登錄部22b、及發光控制部22c可分別個別地由處理器、微電腦、及專用電路之任一者而實現。 檢測部22a檢測對操作裝置之特定之操作。操作裝置係使用者為了控制照明器具20而由使用者操作之裝置，且係與資訊終端10不同之裝置。如上所述，操作裝置係例如壁面開關30或遙控器40。 登錄部22b進行與資訊終端10之登錄相關之處理。登錄部22b例如當判定為在取得了登錄請求後，檢測到對操作裝置之特定之操作時，登錄資訊終端10。如此般，藉由將對操作裝置之特定之操作設為登錄之要件，而可抑制其他使用者所持有之資訊終端被誤登錄。 發光控制部22c根據由光通信部21b接收之控制信號，朝調光電路27輸出調光控制信號。藉此，發光部28以與使用者之對遙控器40之操作相應之態樣發光(或熄滅)。調光控制信號係例如PWM(Pulse Width Modulation，脈衝寬度調變)信號，但亦可為PFM(Pulse Frequency Modulation，脈衝頻率調變)信號等。 記憶部23係記憶有由控制部22執行之程式、照明器具20自身之ID資訊(第1 ID資訊)等之記憶裝置。ID資訊係例如SSID。記憶部23具體而言係由半導體記憶體等實現。記憶部23亦可包含於控制部22。 又，如後所述，記憶部23包含用於記憶資訊終端10之ID資訊(第2 ID資訊)之暫時記憶區域及確定記憶區域此2個區域。該等2個區域既可為被邏輯性分開之區域，亦可為被實體性分開之區域。當2個區域被實體性分開時，暫時記憶區域係例如具有揮發性之記憶區域，確定記憶區域係例如具有非揮發性之記憶區域。 計時部24係計測時間之計時裝置，且將所計測之時間通知控制部22(登錄部22b)。計時部24用於特定期間之計測。計時部24具體而言係計時器電路或即時時脈IC等，無論是何種態樣皆可。計時部24可包含於控制部22。 電力轉換部25將自電力系統50供給之交流電力轉換為直流電力並朝控制部22及調光電路27輸出。電力轉換部25具體而言係例如包含橋型全波整流電路等之電力轉換電路。電力轉換部25既可藉由積體電路等實現，亦可為任何態樣。 蓄電部26係當來自電力系統50之電力供給中斷時，對控制部22供給電力之備用電源。蓄電部26例如由電容器實現，但亦可由蓄電池實現。 調光電路27係根據由發光控制部22c輸出之調光控制信號朝發光部28供給電力之電路。調光電路27係例如包含藉由調光控制信號而被打開及關閉之開關元件之電路。 發光部28作為照明器具20之光源發揮功能，藉由自調光電路27供給之電力而發光。發光部28具體而言係在基板上安裝有LED(Light Emitting Diode，發光二極體)元件作為發光元件之發光模組。發光部28既可係在基板上直接安裝有LED晶片之COB(Chip On Board，晶片直接封裝)型之發光模組，亦可為在基板上安裝有表面安裝型之LED元件之SMD(Surface Mount Device，表面安裝元件)型之發光模組。表面安裝型之LED元件係在樹脂成型之凹腔之中安裝LED晶片並在該凹腔內封入含螢光體樹脂之封裝體型LED元件。 又，照明器具20亦可具備彼此發光色不同之2種發光部28，而對應調色控制。該情形下，照明器具20可轉移至僅色溫度低之發光部28暗淡發光之夜燈模式。 ［壁面開關］ 其次，針對壁面開關30進行說明。壁面開關30安裝於建築物之壁面，根據使用者之操作而打開或關閉自電力系統50對照明器具20之電力供給。亦即，壁面開關30係使用者用於切換照明器具20之點亮或熄滅之開關。壁面開關30係操作裝置之一例。 壁面開關30所具備之操作受理部31具體而言係壁面開關30之按鈕部分，其受理使用者之操作。針對壁面開關30可使用泛用之任何開關。 ［遙控器］ 其次，針對遙控器40進行說明。遙控器40係為了控制照明器具20而由使用者操作之專用裝置。遙控器40根據使用者之操作對照明器具20藉由紅外線通信發送控制信號。遙控器40係操作裝置之一例。遙控器40具備：操作受理部41、控制部42、光通信部43、及記憶部44。 操作受理部41係受理照明器具20之點亮操作、照明器具20之熄滅操作、及照明器具20之調光操作等之使用者介面。操作受理部41具體而言係藉由硬體鍵(按鈕)而實現，但亦可藉由包含觸控面板及顯示部之GUI而實現。 控制部42係執行遙控器40之各種控制之裝置。控制部42若藉由操作受理部41受理用於控制照明器具20之使用者之操作，則使光通信部43發送與操作相應之控制信號。控制部42具體而言係藉由處理器、微電腦、或專用電路而實現。控制部42亦可藉由處理器、微電腦、及專用電路中2個以上之組合而實現。 光通信部43與照明器具20之光通信部21b進行使用光之無線通信。光通信部43例如基於控制部42之控制朝光通信部21b無線發送控制信號。又，使用光之無線通信與使用電波之無線通信不同。藉由光通信部43進行之無線通信具體而言係遵照特定之通信規格之紅外線通信。 記憶部44係記憶有由控制部42執行之程式等之記憶裝置。記憶部44具體而言係由半導體記憶體等實現。記憶部44可包含於控制部42。 ［動作例1］ 其次，針對照明系統100之動作例1進行說明。在照明系統100中，發光部28具有下述功能，即：藉由使用者對壁面開關30之操作受理部31進行特定之操作，而發光態樣自第1態樣變為第2態樣。此處，第1態樣係例如發光部28以100%之亮度發光之態樣，第2態樣係例如發光部28以70%之亮度發光之態樣，或發光部28以夜燈模式發光之態樣。 該情形之特定之操作係將打開狀態之壁面開關30快速地進行關閉及打開之1-2-switch操作。根據1-2-switch操作，例如以1秒鐘以下之短時間(1秒鐘以下之特定時間)關閉對電力轉換部25之電力供給。動作例1係將如此之1-2-switch操作設為資訊終端10之登錄之要件之動作例。圖3係照明系統100之動作例1之程序圖。在圖3中顯示之程序圖所示之各步驟係在資訊終端10及照明器具20為電源打開之狀態下執行。 首先，照明器具20之發光控制部22c藉由將調光控制信號輸出至調光電路27而使發光部28以第1態樣發光(S11)。 另一方面，使用者對資訊終端10之操作受理部11進行登錄操作，而操作受理部11受理登錄操作(S12)。控制部12根據登錄操作使電波通信部13多點傳播發送登錄請求(S13)。登錄請求並未指定發送對象而被發送。 照明器具20之電波通信部21a自電波通信部13取得登錄請求(S14)。登錄部22b產生記憶於記憶部23之含有照明器具20之第1 ID資訊的第1資訊，且使電波通信部21a發送所產生之第1資訊(S15)。第1資訊係針對登錄請求之應答。 若藉由資訊終端10之電波通信部13接收到第1資訊(S16)，則控制部12將所接收到之第1資訊所含之照明器具20之第1 ID資訊暫時記憶於記憶部14(S17)。控制部12例如將第1 ID資訊記憶於記憶部14內之暫時記憶區域。其次，控制部12產生記憶於記憶部14之含有資訊終端10之第2 ID資訊的第2資訊，且使電波通信部13發送所產生之第2資訊(S18)。第2資訊基於記憶於記憶部14之第1 ID資訊被朝照明器具20發送。 若由照明器具20之電波通信部21a接收到第2資訊(S19)，則登錄部22b將所接收到之第2資訊所含之資訊終端10之第2 ID資訊暫時記憶於記憶部23(S20)。登錄部22b例如將第2 ID資訊記憶於記憶部23內之暫時記憶區域。此狀態換言之係假登錄狀態。而後，登錄部22b使用計時部24開始特定期間之計測。特定期間係例如1分鐘左右之期間，並不特別限定。又，當與第2 ID資訊相同之ID資訊已經記憶於記憶部23時，登錄部22b將第2資訊設為無效(作廢)。 此處，若使用者在特定期間之到期前對壁面開關30之操作受理部31進行特定之操作(1-2-switch操作)，則操作受理部31受理特定之操作(S21)。若對壁面開關30進行特定之操作，則對照明器具20之電力轉換部25之電力供給被短時間(特定時間)關閉。檢測部22a檢測如此之短時間之電力供給之關閉。亦即，檢測部22a檢測特定之操作(S22)。又，此時，檢測部22a使用蓄積於蓄電部26之電力進行檢測。 發光控制部22c在判定為檢測到對壁面開關30之特定之操作時，使以第1態樣發光之發光部28(照明器具20)以與第1態樣不同之第2態樣發光(S23)。亦即，發光控制部22c變更發光態樣。發光控制部22c具體而言係變更朝調光電路27輸出之發光控制信號。 另一方面，登錄部22b當判定為在取得了登錄請求後之特定期間內檢測到對壁面開關30之特定之操作時，進行登錄處理(S24)。登錄部22b例如藉由將第2 ID資訊記憶於記憶部23內之確定記憶區域而確定第2 ID資訊之記憶。藉此，資訊終端10登錄於照明器具20。又，登錄部22b當判定為在未檢測到對壁面開關30之特定之操作下經過上述特定期間時，則不進行登錄處理。該情形下，登錄部22b不將第2 ID資訊記憶於確定記憶區域，且將已暫時地記憶之第2 ID資訊設為無效(作廢)。 其次，登錄部22b使電波通信部21a發送登錄完成通知(S25)。登錄完成通知基於記憶於記憶部23之第2 ID資訊被朝資訊終端10發送。 若由資訊終端10之電波通信部13接收到登錄完成通知(S26)，則控制部12藉由將第1 ID資訊記憶於記憶部14內之確定記憶區域，而確定第1 ID資訊之記憶(S27)。又，當在一定期間內未接收到登錄完成通知時，控制部12不將第1 ID資訊記憶於確定記憶區域，且將已暫時地記憶之第1 ID資訊設為無效(作廢)。 若進行如以上之動作，則資訊終端10及照明器具20配對(相關聯)。於是，使用者除了遙控器40以外亦可使用資訊終端10控制照明器具20。 在以上所說明之動作例1中，登錄部22b當判定為在取得了登錄請求後之特定期間內檢測到對壁面開關30之特定之操作時，登錄資訊終端10。藉此，由於對壁面開關30之特定之操作成為資訊終端10之登錄要件，故可抑制位於設置有照明器具20之建築物之外部的其他使用者之資訊終端被誤登錄。 又，特定之操作並不限定於1-2-switch操作。例如，亦可將複數次連續地進行1-2-switch操作設為登錄要件。又，亦可將與1-2-switch不同之操作設為特定之操作。另外，在特定期間內進行對壁面開關30之特定之操作並非為必須之登錄要件。亦即，對與特定之操作相關之時間之限制不設也可。 ［切換動作］ 在動作例1中，係藉由使用者對於壁面開關30進行特定之操作，而變更照明器具20之發光態樣。因此，無關於使用者是意圖進行發光態樣之變更還是意圖登錄資訊終端10，若對壁面開關30進行特定之操作，則照明器具20之發光態樣就會發生變化。亦即，有違背使用者之意圖而變更發光態樣之情形。 因此，發光控制部22c可根據對壁面開關30之特定之操作是否是與資訊終端10之登錄關聯所進行，而切換是否變更發光部28(照明器具20)之發光態樣。具體而言，發光控制部22c可根據是否是在上述特定期間內檢測到對壁面開關30之特定之操作，而切換是否變更發光部28(照明器具20)之發光態樣。圖4係如此之切換動作之流程圖。 如圖4所示般，若藉由檢測部22a檢測到特定之操作(S31)，則發光控制部22c判定是否是在特定期間內(S32)。具體而言，發光控制部22c判定登錄部22b已使用計時部24開始特定期間之計測，且特定期間是否到期。 發光控制部22c當判定為在特定期間外檢測到對壁面開關30之特定之操作時(S32中為否)，變更發光部28之發光態樣(S33)。具體而言，發光控制部22c使以第1態樣發光之發光部28(照明器具20)以與第1態樣不同之第2態樣發光。 另一方面，發光控制部22c當判定為在特定期間內檢測到對壁面開關30之特定之操作時(S32中為是)，維持發光部28之發光態樣(S34)。具體而言，發光控制部22c使以第1態樣發光之發光部28(照明器具20)保持原樣以第1態樣發光。 根據如以上之切換動作，可抑制違背使用者之意圖而變更發光態樣之情事。 另外，照明系統100存在不具有藉由使用者對壁面開關30進行特定之操作而變更照明器具20之發光態樣之功能的情形。在如此之情形下，為了令使用者認知到已經適切地進行特定之操作，而可僅在與登錄相關聯已進行了特定之操作時變更發光部28之發光態樣。圖5係如此之情形之切換動作之流程圖。 如圖5所示般，若由檢測部22a檢測到特定之操作(S31)，則發光控制部22c判定是否是在特定期間內(S32)。具體而言，發光控制部22c判定登錄部22b已使用計時部24開始特定期間之計測，且特定期間是否到期。 發光控制部22c當判定為在特定期間內檢測到對壁面開關30之特定之操作時(S32中為是)，變更發光部28之發光態樣(S33)。具體而言，發光控制部22c使以第1態樣發光之發光部28(照明器具20)以與第1態樣不同之第2態樣發光。 另一方面，發光控制部22c當判定為在特定期間外檢測到對壁面開關30之特定之操作時(S32中為否)，維持發光部28之發光態樣(S34)。具體而言，發光控制部22c使以第1態樣發光之發光部28(照明器具20)保持原樣以第1態樣發光。 根據如以上之切換動作，照明系統100可藉由發光部28之發光態樣之變更而令使用者認知到與資訊終端10之登錄關聯而特定之操作已適切地進行此一情事。又，在本切換動作中，檢測部22a之功能可僅在特定期間內有效。亦即，檢測部22a可無需經常進行特定之操作之檢測。 又，圖4及圖5所示之切換動作亦可與以下之動作例2組合。 ［動作例2］ 在動作例1及切換動作中，係將對壁面開關30之特定之操作設為登錄要件，但亦可取代壁面開關30而將對遙控器40之特定之操作設為登錄要件。以下，針對如此之動作例2進行說明。圖6係照明系統100之動作例2之程序圖。另外，在以下之動作例2之說明中，以與動作例1之相異點為中心進行說明，針對在動作例1中已經說明之事項而將說明適宜省略。 如圖6所示般，動作例2中自步驟S11至步驟S20之處理係與動作例1相同。 在步驟S20中，若將資訊終端10之第2 ID資訊暫時地記憶於記憶部23，則登錄部22b使用計時部24開始特定期間之計測。 此處，若使用者在特定期間之到期前對遙控器40之操作受理部41進行特定之操作，則操作受理部41受理特定之操作(S41)。 特定之操作係例如將亮度降為50%以下之操作，但並不特別限定。特定之操作亦可係使發光部28之發光態樣發生變化之操作。在如此之操作中，包含調光操作及調色操作等。又，在調光操作中包含含有點亮及熄滅之調光操作，及在點亮狀態下變更亮度之調光操作。 另外，特定之操作亦可為使發光部28之發光態樣不發生變化之操作(計時器設定操作等)。又，特定之操作亦可為必須按下操作受理部41中2個以上之按鈕之操作。 若藉由操作受理部41受理特定之操作，則控制部42使光通信部43發送與特定之操作相應之控制信號(S42)。控制信號藉由紅外線通信被發送。 若照明器具20之光通信部21b接收到控制信號(S43)，則發光控制部22c朝調光電路27輸出與所接收到之控制信號相應之調光控制信號。藉此，發光部28以與特定之操作相應之態樣發光(S44)。又，當特定之操作係使發光部28之發光態樣不發生變化之操作時，則省略步驟S44。 另一方面，檢測部22a檢測接收到與特定之操作相應之控制信號與否。亦即，檢測部22a檢測特定之操作(S45)。於是，登錄部22b進行登錄處理(S24)。以後與動作例1相同。 又，在步驟S45中，檢測部22a可藉由檢測發光部28之發光態樣，而間接地檢測特定之操作。具體而言，檢測部22a可藉由取代所接收之控制信號而檢測從發光控制部22c輸出之調光控制信號，而檢測發光部28之發光態樣。 若進行如以上之動作，則資訊終端10及照明器具20配對(相關聯)。於是，使用者除了遙控器40以外亦可使用資訊終端10控制照明器具20。 在以上所說明之動作例2中，登錄部22b當判定為在取得了登錄請求後之特定期間內檢測到對遙控器40之特定之操作時，登錄資訊終端10。藉此，由於對遙控器40之特定之操作成為資訊終端10之登錄要件，故可抑制位於設置有照明器具20之建築物之外部的其他使用者之資訊終端被誤登錄。 特別是，當遙控器40利用紅外線通信發送控制信號時，由於紅外線難以透過牆壁等，故來自位於建築物之外部之遙控器40之控制信號難以到達照明器具20。因此，位於設置有照明器具20之建築物之外部的其他使用者難以登錄該其他使用者所持有之資訊終端，而抑制其他使用者之資訊終端之誤登錄之效果為高。 ［動作例3］ 在上述動作例1及動作例2中，登錄部22b當判定為在取得了登錄請求後檢測到對操作裝置(壁面開關30或遙控器40)之特定之操作時，登錄資訊終端10。然而，登錄部22b亦可當判定為在檢測到對操作裝置之特定之操作後取得了登錄請求時，登錄資訊終端10。以下，針對如此之動作例3進行說明。圖7係照明系統100之動作例3之程序圖。另外，在以下之動作例3之說明中，以與動作例1及2之相異點為中心進行說明，針對在動作例1及動作例2中已經說明之事項則將說明適宜省略。 如圖7所示般，在動作例3中，使用者首先對遙控器40進行特定之操作。若藉由操作受理部41接收到特定之操作(S51)，則控制部42使光通信部43發送與特定之操作相應之控制信號(S52)。控制信號藉由紅外線通信被發送。又，在動作例3中，可取代遙控器40而對壁面開關30進行特定之操作。 若照明器具20之光通信部21b接收控制信號(S53)，則發光控制部22c朝調光電路27輸出與所接收到之控制信號相應之調光控制信號。藉此，發光部28以與特定之操作相應之態樣發光(S54)。另一方面，檢測部22a檢測已接收到與特定之操作相應之控制信號。亦即，檢測部22a檢測特定之操作(S55)。 如此般，在動作例3中，使用者首先藉由進行特定之操作而變更照明器具20之發光態樣。換言之，在動作例3中，照明器具20以特定之態樣發光成為登錄要件(受理登錄請求之要件)。特定之態樣例如既可為全光點亮狀態，亦可為熄滅狀態，還可為調光等級大於0%(熄滅狀態)且小於100%(全光點亮狀態)之特定狀態。特定之態樣並不特別限定。 又，特定之操作係例如使發光部28之發光態樣發生變化之操作，但亦可為使發光部28之發光態樣不發生變化之操作，該情形下，省略步驟S54。在特定之操作中，既可包含用於進行照明器具20之電源打開及關閉(簡單地點亮及熄滅)之操作，亦可不包含如此之操作。 又，在步驟S55中，檢測部22a可藉由檢測發光部28之發光態樣，而間接地檢測特定之操作。具體而言，檢測部22a可藉由取代所接收之控制信號而檢測從發光控制部22c輸出之調光控制信號，而檢測發光部28之發光態樣。 在步驟S55之後，使用者對資訊終端10之操作受理部11進行登錄操作，操作受理部11受理登錄操作(S12)。控制部12根據登錄操作使電波通信部13多點傳播發送登錄請求(S13)。登錄請求並未指定發送對象而被發送。 照明器具20之電波通信部21a自電波通信部13取得登錄請求(S14)。登錄部22b產生記憶於記憶部23之含有照明器具20之第1 ID資訊(例如SSID)的第1資訊，且使電波通信部21a發送所產生之第1資訊(S15)。第1資訊係針對登錄請求之應答。 又，當發光部28在未以與特定之操作相應之態樣發光時取得了登錄請求之情形下，登錄部22b不使電波通信部21a發送第1資訊。亦即，照明器具20對登錄請求不進行應答。此時，登錄部22b可使電波通信部21a發送錯誤通知而取代第1資訊。在對資訊終端10之錯誤通知中，例如可包含表示在對遙控器40進行特定之操作後，必須再次進行登錄操作之訊息。 若藉由資訊終端10之電波通信部13接收到第1資訊(S16)，則控制部12將所接收到之第1資訊所含之照明器具20之第1 ID資訊記憶於記憶部14(S56)。其次，控制部12產生記憶於記憶部14之含有資訊終端10之第2 ID資訊的第2資訊，且使電波通信部13發送所產生之第2資訊(S18)。第2資訊基於記憶於記憶部14之第1 ID資訊朝照明器具20發送。 若藉由照明器具20之電波通信部21a接收到第2資訊(S19)，則登錄部22b進行登錄處理(S24)。登錄部22b例如將第2 ID資訊記憶於記憶部23。藉此，資訊終端10登錄於照明器具20。最後，登錄部22b使電波通信部21a發送登錄完成通知(S25)。登錄完成通知基於記憶於記憶部23之第2 ID資訊被朝資訊終端10發送，且由資訊終端10之電波通信部13接收(S26)。 在進行完如以上之動作後，使用者除了遙控器40外亦可使用資訊終端10控制照明器具20。 在以上所說明之動作例3中，登錄部22b當判定為在檢測到對遙控器40之特定之操作後取得了登錄請求時，登錄資訊終端10。藉此，由於對遙控器40之特定之操作成為資訊終端10之登錄要件，故可抑制位於設置有照明器具20之建築物之外部之資訊終端被誤登錄。 又，可行的是，在動作例3之步驟S55中檢測到特定之操作後，登錄部22b使用計時部24開始特定期間之計測，當在該特定期間內取得了登錄請求時登錄資訊終端10。亦即，亦可設有與登錄請求之取得相關之時間之限制。 該情形下，當在特定之期間經過後取得登錄請求時，登錄部22b不使電波通信部21a發送第1資訊。換言之，當在特定之期間經過後取得了登錄請求時，登錄部22b不登錄資訊終端10。 此時，登錄部22b可使電波通信部21a發送錯誤通知來取代第1資訊。錯誤通知被朝資訊終端10發送。在錯誤通知中可包含例如表示必須重新進行對遙控器40之特定之操作之訊息。 ［效果等］ 如以上所說明般，照明系統100具備：電波通信部21a，其取得用於將資訊終端10作為控制照明器具20之機器而登錄之登錄請求；檢測部22a，其檢測對使用者為了控制照明器具20而由使用者操作之操作裝置、且為不同於檢測資訊終端10的操作裝置之特定之操作；及登錄部22b，其在判定為取得了登錄請求，且檢測到對操作裝置之特定之操作時，登錄資訊終端10。電波通信部21a係取得部之一例。 因此，由於對操作裝置之操作成為登錄要件，故可抑制無法操作操作裝置之其他使用者之資訊終端被誤登錄。 又，登錄部22b可在判定為取得了登錄請求後，檢測到對操作裝置之特定之操作時，登錄資訊終端10。 藉此，由於在取得了登錄請求後操作裝置經操作成為登錄要件，故可抑制無法操作操作裝置之其他使用者之資訊終端誤登錄。 又，登錄部22b可在判定為取得了登錄請求後之特定期間內檢測到對操作裝置之特定之操作時，登錄資訊終端10。 藉此，由於設置有與特定之操作相關之時間之限制，故可抑制其他使用者之資訊終端被誤登錄。 又，照明系統100可進一步具備發光控制部22c，其在判定為檢測到對操作裝置之特定之操作時，使以第1態樣發光之照明器具20以與第1態樣不同之第2態樣發光。 藉此，使用者可藉由特定之操作而變更照明器具20(發光部28)之發光態樣。 又，照明系統100可進一步具備發光控制部22c，其根據是否在特定期間內檢測到對操作裝置之特定之操作而切換是否變更照明器具20之發光態樣。 藉此，照明系統100可根據特定之操作是否是與登錄相關聯，而切換是否變更照明器具20之發光態樣。 又，發光控制部22c可在判定為於特定期間外檢測到對操作裝置之特定之操作時，使以第1態樣發光之照明器具以與第1態樣不同之第2態樣發光。發光控制部22c可在判定為於特定期間內檢測到對操作裝置之特定之操作時，使以第1態樣發光之照明器具20保持原樣以第1態樣發光。 藉此，由於根據與登錄相關聯而進行之特定之操作，而未變更照明器具20(發光部28)之發光態樣，故可抑制違背使用者之意圖而變更發光態樣之情事。 又，發光控制部22c可在判定為於特定期間內檢測到對操作裝置之特定之操作時，使以第1態樣發光之照明器具以與第1態樣不同之第2態樣發光。發光控制部22c在判定為於特定期間外檢測到對操作裝置之特定之操作時，使以前述第1態樣發光之照明器具20保持原樣以第1態樣發光。 藉此，照明系統100可根據發光部28之發光態樣之變更而令使用者認知與資訊終端10之登錄相關聯而已適切地進行特定之操作。 又，登錄部22b可在判定為於檢測到對操作裝置之特定之操作後取得了登錄請求時，登錄資訊終端10。 藉此，由於在操作裝置經操作後取得登錄請求成為登錄要件，故可抑制無法操作操作裝置之其他使用者之資訊終端被誤登錄。 又，操作裝置可為根據使用者之操作而打開或關閉對照明器具20之電力供給之壁面開關30。 藉此，由於對壁面開關30之操作成為登錄要件，故可抑制無法操作壁面開關30之其他使用者之資訊終端被誤登錄。 又，操作裝置可為根據使用者之操作而朝照明器具20藉由紅外線通信發送控制信號之遙控器。 藉此，由於對遙控器40之操作成為登錄要件，故可抑制無法操作遙控器40之其他使用者之資訊終端被誤登錄。 ＜其他實施形態＞ 以上針對實施形態之照明系統進行了說明，但本發明並不限定於上述實施形態。 在上述實施形態中，照明器具係具備取得部、檢測部、及登錄部，但該等構成要素中之一部分或全部亦可由其他裝置所具備。例如，當在照明系統中含有介在於資訊終端及照明器具之間之照明控制裝置(中繼裝置)時，照明控制裝置可具備：取得部、檢測部、及登錄部之一部分或全部。 又，在上述實施形態中，說明的是操作裝置為壁面開關或遙控器，但操作裝置亦可為其他裝置。例如，操作裝置亦可為有別於下一步要登錄之資訊終端之已經登錄完畢的資訊終端。 又，可並行地進行1個資訊終端之對複數個照明器具之登錄。例如，藉由利用複數個照明器具接收自資訊終端多點傳播發送之登錄請求，且複數個照明器具分別應答所接收之登錄請求，而可並行地進行1個資訊終端之對複數個照明器具之登錄。 例如，在上述實施形態中，在發光部中係將LED元件(LED)用作發光元件。然而，在發光部中，作為發光元件亦可使用例如半導體雷射等之半導體發光元件、有機EL(Electro Luminescence，電致發光)或無機EL等之固體發光元件、再者亦可使用螢光燈。 又，在上述實施形態中，控制部可由專用之硬體構成，或執行適於各構成要素之軟體程式而實現。各構成要素可藉由CPU或處理器等之程式執行部讀出記錄於硬碟或半導體記憶體等之記錄媒體之軟體程式並執行而實現。 又，各構成要素可為電路(或積體電路)。該等電路既可整體構成1個電路，亦可分別為不同之電路。又，該等電路分別既可為泛用之電路，亦可為專用之電路。 又，本發明之整個或具體之態樣可以系統、裝置、方法、積體電路、電腦程式或電腦可讀取之CD-ROM等之記錄媒體而實現。又，亦可以系統、裝置、方法、積體電路、電腦程式及記錄媒體之任意之組合而實現。例如，本發明可以照明器具而實現。又，本發明亦可以資訊終端之登錄方法而實現。 又，在上述實施形態中所說明之程序圖及流程圖中之複數個處理之順序係一例。複數個處理之順序可變更，複數個處理可並行地執行。 另外，針對各實施形態施以熟悉此項技術者可想到之各種變化而獲得之形態、或在不脫離本發明之旨趣之範圍內藉由任意地組合各實施形態之構成要素及功能而實現之形態，亦包含於本發明。Hereinafter, the embodiment will be described with reference to the drawings. In addition, any of the embodiments described below is an example showing generality or specificity. The numerical values, shapes, materials, constituent elements, arrangement positions, connection forms, steps, and order of the constituent elements shown in the following embodiments are examples, and do not limit the gist of the present invention. In addition, among the constituent elements of the following embodiments, the constituent elements that are not described in the independent claim that represents the highest concept are described with arbitrary constituent elements. In addition, each drawing is a schematic diagram, and it is not necessarily a strictly illustrated one. In addition, in each drawing, there is a case where substantially the same configuration is given the same symbol, and the repeated description is omitted or simplified. (Embodiment) [Overall Configuration of Lighting System] First, the overall configuration of the lighting system of the embodiment will be described. Fig. 1 is an external view of a device constituting the lighting system of the embodiment. FIG. 2 is a block diagram showing the functional configuration of the lighting system of the embodiment. As shown in FIGS. 1 and 2, the lighting system 100 of the embodiment includes an information terminal 10, a lighting fixture 20, a wall switch 30, and a remote controller 40. The lighting system 100 may include two or more lighting fixtures 20. In addition, in FIG. 2, the power system 50 is also shown. In the lighting system 100, by registering the information terminal 10 to the lighting appliance 20, the user can control the lighting appliance 20 through the information terminal 10. Here, in the lighting system 100, the operation of the operation device disposed in the room illuminated by the lighting fixture 20 is set as a registration requirement so that the information terminal of a user other than the user of the lighting system 100 is not mistakenly registered in the lighting fixture 20. The operation device is specifically a wall switch 30 or a remote controller 40 dedicated to the lighting fixture 20. Hereinafter, each device will be described in detail while referring to FIG. 2. [Information Terminal] The information terminal 10 is a device to be registered with the lighting fixture 20 in the lighting system 100. The information terminal 10 is specifically a smart phone, and may also be other information terminals such as a tablet terminal. The information terminal 10 includes an operation acceptance unit 11, a control unit 12, a radio wave communication unit 13, and a memory unit 14. The operation acceptance unit 11 is a user interface for accepting operations by a user who is logged in to the information terminal 10. The operation acceptance unit 11 specifically includes a GUI (Graphical User Interface) of a touch panel and a display unit, and may also include hardware keys (buttons). The control unit 12 is a device that performs various controls of the information terminal 10. The control unit 12 causes the display unit to display the image used by the GUI, for example. In addition, the control unit 12 causes the radio wave communication unit 13 to send a registration request when the operation accepting unit 11 accepts the operation of the user for registering the information terminal 10. The registration request is information (signal) for registering the information terminal 10 as a device for controlling the lighting appliance 20. The control unit 12 is specifically realized by a processor, a microcomputer, or a dedicated circuit. The control unit 12 can also be realized by a combination of two or more of a processor, a microcomputer, and a dedicated circuit. The radio wave communication unit 13 is a communication module (communication circuit) that performs radio communication using radio waves with the radio wave communication unit 21 a of the lighting fixture 20. The radio wave communication unit 13 wirelessly transmits a registration request to the radio wave communication unit 21a based on the control of the control unit 12, for example. In addition, wireless communication using radio waves is different from wireless communication using light such as visible light and infrared light. Examples of the specifications (protocols) of wireless communication performed by the radio wave communication unit 13 include ZigBee (registered trademark), Bluetooth (registered trademark), and wireless LAN (Local Area Network). However, the specifications of wireless communication are not Specially limited. In addition, the frequency band of radio waves used for wireless communication is not particularly limited. The memory unit 14 is a memory device that stores programs executed by the control unit 12 and ID information (second ID information) of the information terminal 10 itself. The ID information system is, for example, SSID (Service Set Identifier, Service Set Identifier). The memory section 14 is specifically realized by a semiconductor memory or the like. The memory unit 14 may be included in the control unit 12. In addition, as will be described later, the memory unit 14 includes two areas of a temporary memory area for storing ID information (first ID information) of the lighting fixture 20 and a specific memory area. These two areas can be either logically separated areas or physically separated areas. When the two areas are physically separated, the temporary memory area is, for example, a volatile memory area, and the certain memory area is, for example, a non-volatile memory area. [Lighting Apparatus] Next, the lighting fixture 20 will be described. The lighting fixture 20 is, for example, a ceiling lamp for indoor lighting that emits white light. In addition, the specific configuration of the lighting fixture 20 is not particularly limited. The lighting fixture 20 may be a long ceiling lamp, a downlight, or a spotlight. The lighting fixture 20 includes a radio wave communication unit 21a, an optical communication unit 21b, a control unit 22, a memory unit 23, a timer unit 24, a power conversion unit 25, a power storage unit 26, a dimming circuit 27, and a light emitting unit 28. The radio wave communication section 21a is a communication module (communication circuit) that performs radio communication using radio waves with the radio wave communication section 13 of the information terminal 10. The radio wave communication unit 21a obtains a registration request from the information terminal 10, for example. That is, the radio wave communication unit 21a is an example of an acquisition unit. The specifications of the wireless communication performed by the radio wave communication unit 21a are also not particularly limited as in the radio wave communication unit 13. The optical communication section 21b is a light receiving device that receives a control signal (infrared) sent from the remote controller 40 through infrared communication. The control unit 22 is a device that performs various controls of the lighting fixture 20. The control unit 22 is specifically realized by a processor, a microcomputer, or a dedicated circuit. The control unit 22 can also be realized by a combination of two or more of a processor, a microcomputer, and a dedicated circuit. The control unit 22 includes a detection unit 22a, a registration unit 22b, and a light emission control unit 22c. The detection unit 22a, the registration unit 22b, and the light emission control unit 22c may be individually implemented by any one of a processor, a microcomputer, and a dedicated circuit. The detection unit 22a detects a specific operation of the operation device. The operation device is a device operated by the user in order to control the lighting appliance 20 and is a device different from the information terminal 10. As described above, the operation device is, for example, the wall switch 30 or the remote control 40. The registration unit 22b performs processing related to the registration of the information terminal 10. The registration unit 22b, for example, registers the information terminal 10 when it determines that an operation specific to the operation device has been detected after acquiring the registration request. In this way, by setting a specific operation on the operation device as a requirement for registration, it is possible to suppress the information terminal held by other users from being mistakenly registered. The light emission control unit 22c outputs a dimming control signal to the dimming circuit 27 based on the control signal received by the optical communication unit 21b. As a result, the light emitting unit 28 emits light (or turns off) in accordance with the operation of the remote controller 40 by the user. The dimming control signal is, for example, a PWM (Pulse Width Modulation) signal, but it may also be a PFM (Pulse Frequency Modulation) signal. The memory unit 23 is a memory device that stores programs executed by the control unit 22, ID information (first ID information) of the lighting fixture 20 itself, and the like. The ID information system is, for example, SSID. The memory section 23 is specifically realized by a semiconductor memory or the like. The memory unit 23 may be included in the control unit 22. As will be described later, the memory section 23 includes two areas of a temporary memory area for storing the ID information (second ID information) of the information terminal 10 and a certain memory area. These two areas can be either logically separated areas or physically separated areas. When the two areas are physically separated, the temporary memory area is, for example, a volatile memory area, and the certain memory area is, for example, a non-volatile memory area. The timing unit 24 is a timing device that measures time, and notifies the control unit 22 (registration unit 22b) of the measured time. The timer 24 is used for measurement in a specific period. The timing unit 24 is specifically a timer circuit, a real-time clock IC, etc., and it may be any type. The timing unit 24 may be included in the control unit 22. The power conversion unit 25 converts the AC power supplied from the power system 50 into DC power and outputs it to the control unit 22 and the dimming circuit 27. The power conversion unit 25 is specifically a power conversion circuit including, for example, a bridge-type full-wave rectifier circuit. The power conversion unit 25 may be realized by an integrated circuit or the like, or may be in any form. The power storage unit 26 is a backup power supply that supplies power to the control unit 22 when power supply from the power system 50 is interrupted. The power storage unit 26 is realized by a capacitor, for example, but may also be realized by a battery. The dimming circuit 27 is a circuit that supplies power to the light emitting unit 28 based on the dimming control signal output by the light emitting control unit 22c. The dimming circuit 27 is, for example, a circuit including a switching element that is turned on and off by a dimming control signal. The light emitting unit 28 functions as a light source of the lighting fixture 20 and emits light by the power supplied from the self-dimming circuit 27. Specifically, the light emitting unit 28 is a light emitting module in which an LED (Light Emitting Diode) element is mounted as a light emitting element on a substrate. The light-emitting part 28 may be a COB (Chip On Board) type light-emitting module with LED chips directly mounted on the substrate, or a SMD (Surface Mount) with surface-mounted LED elements mounted on the substrate Device, surface mounted component) type light emitting module. The surface-mounted LED element is a package-type LED element in which a LED chip is mounted in a resin-molded cavity and a phosphor-containing resin is enclosed in the cavity. In addition, the lighting fixture 20 may be provided with two types of light-emitting parts 28 having different light-emitting colors, and corresponding to the color tone control. In this case, the lighting fixture 20 can be shifted to the night light mode where only the light-emitting portion 28 having a low color temperature emits light dimly. [Wall Switch] Next, the wall switch 30 will be described. The wall switch 30 is installed on the wall surface of the building, and turns on or off the power supply from the power system 50 to the lighting fixture 20 according to the user's operation. That is, the wall switch 30 is a switch used by the user to switch the lighting fixture 20 on or off. The wall switch 30 is an example of an operating device. The operation acceptance part 31 provided in the wall surface switch 30 is specifically a button part of the wall surface switch 30, and accepts the user's operation. For the wall switch 30, any general-purpose switch can be used. [Remote Controller] Next, the remote controller 40 will be described. The remote controller 40 is a dedicated device operated by a user to control the lighting fixture 20. The remote controller 40 sends a control signal to the lighting fixture 20 by infrared communication according to the user's operation. The remote controller 40 is an example of an operating device. The remote controller 40 includes an operation acceptance unit 41, a control unit 42, an optical communication unit 43, and a memory unit 44. The operation acceptance unit 41 is a user interface that accepts the lighting operation of the lighting fixture 20, the extinguishing operation of the lighting fixture 20, and the dimming operation of the lighting fixture 20. The operation acceptance unit 41 is specifically realized by hardware keys (buttons), but it can also be realized by a GUI including a touch panel and a display unit. The control unit 42 is a device that performs various controls of the remote controller 40. When the operation accepting unit 41 accepts the operation of the user for controlling the lighting appliance 20, the control unit 42 causes the optical communication unit 43 to transmit a control signal corresponding to the operation. The control unit 42 is specifically realized by a processor, a microcomputer, or a dedicated circuit. The control unit 42 can also be realized by a combination of two or more of a processor, a microcomputer, and a dedicated circuit. The optical communication unit 43 performs wireless communication using light with the optical communication unit 21 b of the lighting fixture 20. The optical communication unit 43 wirelessly transmits a control signal to the optical communication unit 21b based on the control of the control unit 42, for example. Also, wireless communication using light is different from wireless communication using radio waves. The wireless communication performed by the optical communication unit 43 is specifically infrared communication conforming to a specific communication standard. The memory section 44 is a memory device that stores programs executed by the control section 42. The memory section 44 is specifically realized by a semiconductor memory or the like. The memory unit 44 may be included in the control unit 42. [Operation Example 1] Next, an operation example 1 of the lighting system 100 will be described. In the lighting system 100, the light-emitting part 28 has a function that a user performs a specific operation on the operation acceptance part 31 of the wall switch 30, and the light-emitting state changes from the first state to the second state. Here, the first aspect is, for example, the light emitting portion 28 emits light at 100% brightness, and the second aspect is, for example, the light emitting portion 28 emits light at 70% brightness, or the light emitting portion 28 emits light at night light mode Appearance. The specific operation in this case is the 1-2-switch operation for closing and opening the wall switch 30 in the open state quickly. According to the 1-2-switch operation, for example, the power supply to the power conversion unit 25 is turned off for a short time of 1 second or less (a specific time of 1 second or less). Operation example 1 is an operation example in which such a 1-2-switch operation is set as a requirement for registration of the information terminal 10. FIG. 3 is a sequence diagram of operation example 1 of the lighting system 100. FIG. The steps shown in the program diagram shown in FIG. 3 are executed when the information terminal 10 and the lighting fixture 20 are turned on. First, the light-emission control unit 22c of the lighting fixture 20 causes the light-emission unit 28 to emit light in the first aspect by outputting the dimming control signal to the dimming circuit 27 (S11). On the other hand, the user performs a login operation on the operation acceptance unit 11 of the information terminal 10, and the operation acceptance unit 11 accepts the login operation (S12). The control unit 12 causes the radio wave communication unit 13 to multicast the login request according to the login operation (S13). The login request is sent without specifying the destination. The radio wave communication unit 21a of the lighting fixture 20 obtains a registration request from the radio wave communication unit 13 (S14). The registration unit 22b generates the first information stored in the memory unit 23 and contains the first ID information of the lighting fixture 20, and causes the radio wave communication unit 21a to transmit the generated first information (S15). The first information is the response to the login request. When the first information is received by the radio wave communication unit 13 of the information terminal 10 (S16), the control unit 12 temporarily stores the first ID information of the lighting appliance 20 included in the received first information in the memory unit 14 ( S17). The control unit 12 stores, for example, the first ID information in the temporary storage area in the storage unit 14. Next, the control unit 12 generates the second information stored in the memory unit 14 and contains the second ID information of the information terminal 10, and causes the radio wave communication unit 13 to transmit the generated second information (S18). The second information is transmitted to the lighting fixture 20 based on the first ID information stored in the memory unit 14. If the second information is received by the radio wave communication unit 21a of the lighting fixture 20 (S19), the registration unit 22b temporarily stores the second ID information of the information terminal 10 included in the received second information in the memory unit 23 (S20 ). The registration unit 22b stores, for example, the second ID information in a temporary storage area in the storage unit 23. In other words, this state is a fake login state. Then, the registration unit 22b uses the timer unit 24 to start measurement for a specific period. The specific period is, for example, a period of about 1 minute, and is not particularly limited. In addition, when the same ID information as the second ID information is already stored in the storage unit 23, the registration unit 22b invalidates the second information (void). Here, if the user performs a specific operation (1-2-switch operation) on the operation acceptance unit 31 of the wall switch 30 before the expiration of the specific period, the operation acceptance unit 31 accepts the specific operation (S21). When a specific operation is performed on the wall switch 30, the power supply to the power conversion unit 25 of the lighting fixture 20 is turned off for a short time (specific time). The detection unit 22a detects the shutdown of the power supply in such a short time. That is, the detection unit 22a detects a specific operation (S22). In addition, at this time, the detection unit 22a performs detection using the electric power stored in the power storage unit 26. When it is determined that the specific operation of the wall switch 30 is detected, the light emission control unit 22c causes the light emitting unit 28 (lighting fixture 20) that emits light in the first state to emit light in a second state different from the first state (S23 ). That is, the emission control unit 22c changes the emission state. The light emission control unit 22c specifically changes the light emission control signal output to the dimming circuit 27. On the other hand, the registration unit 22b performs a registration process when it is determined that a specific operation on the wall switch 30 is detected within a specific period after the registration request is acquired (S24). The registration unit 22b determines the memory of the second ID information by storing the second ID information in a certain memory area in the memory unit 23, for example. With this, the information terminal 10 is registered in the lighting fixture 20. In addition, the registration unit 22b does not perform the registration process when it is determined that the specific period has elapsed without the specific operation of the wall switch 30 being detected. In this case, the registration unit 22b does not store the second ID information in the certain storage area, and invalidates the temporarily stored second ID information (obsolete). Next, the registration unit 22b causes the radio wave communication unit 21a to send a registration completion notification (S25). The registration completion notification is sent to the information terminal 10 based on the second ID information stored in the storage unit 23. When the radio wave communication unit 13 of the information terminal 10 receives the registration completion notification (S26), the control unit 12 determines the memory of the first ID information by storing the first ID information in a certain memory area in the memory unit 14 ( S27). In addition, when the registration completion notification is not received within a certain period of time, the control unit 12 does not store the first ID information in the certain storage area, and invalidates the temporarily stored first ID information (void). If the above operations are performed, the information terminal 10 and the lighting fixture 20 are paired (associated). Therefore, the user can use the information terminal 10 to control the lighting appliance 20 in addition to the remote controller 40. In the operation example 1 described above, the registration unit 22b logs in to the information terminal 10 when it is determined that a specific operation on the wall switch 30 is detected within a specific period after the registration request is acquired. Accordingly, since the specific operation of the wall switch 30 becomes a registration requirement of the information terminal 10, it is possible to suppress the information terminal of other users located outside the building where the lighting fixture 20 is installed from being mistakenly registered. Also, the specific operation is not limited to 1-2-switch operation. For example, it may be set as a registration requirement by performing a 1-2-switch operation several times in succession. Also, operations different from 1-2-switch can be set as specific operations. In addition, the specific operation of the wall switch 30 within a specific period is not a necessary registration requirement. That is, there is no need to set a time limit related to a specific operation. [Switching Operation] In Operation Example 1, the user performs a specific operation on the wall switch 30 to change the light emission state of the lighting fixture 20. Therefore, regardless of whether the user intends to change the lighting state or to log in to the information terminal 10, if a specific operation is performed on the wall switch 30, the lighting state of the lighting fixture 20 will change. In other words, the light emission state may be changed against the user's intention. Therefore, the light emission control unit 22c can switch whether or not to change the light emission state of the light emitting unit 28 (lighting fixture 20) according to whether the specific operation of the wall switch 30 is associated with the registration of the information terminal 10. Specifically, the light emission control unit 22c can switch whether or not to change the light emission state of the light emitting unit 28 (lighting fixture 20) according to whether a specific operation of the wall switch 30 is detected within the specific period. FIG. 4 is a flowchart of such a switching operation. As shown in FIG. 4, if a specific operation is detected by the detection unit 22a (S31), the light emission control unit 22c determines whether it is within a specific period (S32). Specifically, the light emission control unit 22c determines whether the registration unit 22b has started the measurement of the specific period using the timer unit 24, and whether the specific period has expired. When it is determined that the specific operation of the wall switch 30 is detected outside the specific period (No in S32), the light emission control unit 22c changes the light emission state of the light emitting unit 28 (S33). Specifically, the light emission control unit 22c causes the light emitting unit 28 (lighting fixture 20) that emits light in the first aspect to emit light in a second aspect that is different from the first aspect. On the other hand, when it is determined that the specific operation of the wall switch 30 is detected within a specific period (YES in S32), the light emission control unit 22c maintains the light emission state of the light emitting unit 28 (S34). Specifically, the light emission control unit 22c causes the light emitting unit 28 (lighting fixture 20) that emits light in the first state to emit light in the first state as it is. According to the switching operation as described above, it is possible to suppress the situation that the light emission state is changed against the user's intention. In addition, the lighting system 100 may not have a function of changing the light emission state of the lighting fixture 20 by the user performing a specific operation on the wall switch 30. In such a case, in order to make the user recognize that the specific operation has been appropriately performed, the light emission state of the light emitting unit 28 may be changed only when the specific operation has been performed in association with the registration. FIG. 5 is a flowchart of the switching operation in such a situation. As shown in FIG. 5, if a specific operation is detected by the detection unit 22a (S31), the light emission control unit 22c determines whether it is within a specific period (S32). Specifically, the light emission control unit 22c determines whether the registration unit 22b has started the measurement of the specific period using the timer unit 24, and whether the specific period has expired. When it is determined that the specific operation of the wall switch 30 is detected within a specific period (Yes in S32), the light-emission control unit 22c changes the light-emitting state of the light-emitting unit 28 (S33). Specifically, the light emission control unit 22c causes the light emitting unit 28 (lighting fixture 20) that emits light in the first aspect to emit light in a second aspect that is different from the first aspect. On the other hand, when it is determined that the specific operation of the wall switch 30 is detected outside the specific period (NO in S32), the light emission control unit 22c maintains the light emission state of the light emitting unit 28 (S34). Specifically, the light emission control unit 22c causes the light emitting unit 28 (lighting fixture 20) that emits light in the first state to emit light in the first state as it is. According to the switching operation as described above, the lighting system 100 can make the user recognize that the specific operation has been properly performed in connection with the registration of the information terminal 10 by the change of the lighting state of the light emitting unit 28. In addition, in this switching operation, the function of the detection unit 22a may be valid only for a specific period. That is, the detection unit 22a does not need to perform specific operation detection frequently. In addition, the switching operation shown in FIGS. 4 and 5 may be combined with the following operation example 2. [Operation Example 2] In Operation Example 1 and the switching operation, the specific operation on the wall switch 30 is set as the registration requirement, but instead of the wall switch 30, the specific operation on the remote controller 40 may be set as the registration requirement. . Hereinafter, such an operation example 2 will be described. 6 is a sequence diagram of operation example 2 of the lighting system 100. In the following description of the operation example 2, the difference from the operation example 1 will be mainly described, and the description of the matters already described in the operation example 1 will be appropriately omitted. As shown in FIG. 6, the processing from step S11 to step S20 in operation example 2 is the same as operation example 1. In step S20, if the second ID information of the information terminal 10 is temporarily stored in the storage unit 23, the registration unit 22b uses the timing unit 24 to start measurement for a specific period. Here, if the user performs a specific operation on the operation accepting unit 41 of the remote controller 40 before the expiration of the specific period, the operation accepting unit 41 accepts the specific operation (S41). The specific operation is, for example, an operation for reducing the brightness to 50% or less, but it is not particularly limited. The specific operation may also be an operation to change the light emitting state of the light emitting unit 28. Such operations include dimming operations and toning operations. In addition, the dimming operation includes a dimming operation including turning on and off, and a dimming operation that changes the brightness in the lighting state. In addition, the specific operation may be an operation (timer setting operation, etc.) that does not change the light emission state of the light emitting unit 28. In addition, the specific operation may be an operation in which two or more buttons in the operation acceptance unit 41 must be pressed. When the operation accepting unit 41 accepts a specific operation, the control unit 42 causes the optical communication unit 43 to transmit a control signal corresponding to the specific operation (S42). Control signals are sent via infrared communication. When the optical communication unit 21b of the lighting fixture 20 receives the control signal (S43), the light emission control unit 22c outputs a dimming control signal corresponding to the received control signal to the dimming circuit 27. With this, the light emitting unit 28 emits light in a manner corresponding to a specific operation (S44). In addition, when the specific operation is an operation that does not change the light emission state of the light emitting unit 28, step S44 is omitted. On the other hand, the detection section 22a detects whether or not a control signal corresponding to a specific operation is received. That is, the detection unit 22a detects a specific operation (S45). Then, the registration part 22b performs a registration process (S24). Hereinafter, it is the same as the operation example 1. In addition, in step S45, the detection unit 22a may indirectly detect a specific operation by detecting the light-emitting state of the light-emitting unit 28. Specifically, the detection unit 22a can detect the light-emitting state of the light-emitting unit 28 by detecting the dimming control signal output from the light-emission control unit 22c instead of the received control signal. If the above operations are performed, the information terminal 10 and the lighting fixture 20 are paired (associated). Therefore, the user can use the information terminal 10 to control the lighting appliance 20 in addition to the remote controller 40. In the operation example 2 described above, the registration unit 22b logs in to the information terminal 10 when it is determined that a specific operation on the remote controller 40 is detected within a specific period after the registration request is acquired. By this, since the specific operation of the remote controller 40 becomes a registration requirement of the information terminal 10, it is possible to suppress the information terminal of another user located outside the building where the lighting fixture 20 is installed from being mistakenly registered. In particular, when the remote controller 40 transmits control signals using infrared communication, it is difficult for infrared rays to pass through walls or the like, so that the control signal from the remote controller 40 located outside the building is difficult to reach the lighting fixture 20. Therefore, it is difficult for other users located outside the building where the lighting appliance 20 is installed to register the information terminal held by the other user, and the effect of suppressing the erroneous registration of the information terminal of the other user is high. [Operation Example 3] In the above Operation Example 1 and Operation Example 2, the registration unit 22b registers information when it is determined that a specific operation on the operating device (wall switch 30 or remote controller 40) is detected after obtaining the registration request Terminal 10. However, the registration unit 22b may log in to the information terminal 10 when it is determined that a registration request has been acquired after detecting a specific operation on the operation device. Hereinafter, such an operation example 3 will be described. 7 is a sequence diagram of operation example 3 of the lighting system 100. In the following description of the operation example 3, the differences from the operation examples 1 and 2 will be mainly described, and the description of the matters already described in the operation example 1 and the operation example 2 will be appropriately omitted. As shown in FIG. 7, in Action Example 3, the user first performs a specific operation on the remote controller 40. When a specific operation is received by the operation acceptance unit 41 (S51), the control unit 42 causes the optical communication unit 43 to transmit a control signal corresponding to the specific operation (S52). Control signals are sent via infrared communication. In addition, in Operation Example 3, the wall switch 30 may be specifically operated in place of the remote controller 40. When the optical communication unit 21b of the lighting fixture 20 receives the control signal (S53), the light emission control unit 22c outputs a dimming control signal corresponding to the received control signal to the dimming circuit 27. With this, the light emitting unit 28 emits light in a manner corresponding to the specific operation (S54). On the other hand, the detection section 22a detects that a control signal corresponding to a specific operation has been received. That is, the detection unit 22a detects a specific operation (S55). In this manner, in Operation Example 3, the user first changes the light emission state of the lighting fixture 20 by performing a specific operation. In other words, in Operation Example 3, the lighting fixture 20 emits light in a specific manner to become a registration requirement (requirement for accepting a registration request). The specific state may be, for example, a full-light on state or an off state, or a specific state with a dimming level greater than 0% (off state) and less than 100% (all light on state). The specific aspect is not particularly limited. In addition, the specific operation is, for example, an operation of changing the light emission state of the light emitting unit 28, but it may be an operation of not changing the light emission state of the light emitting unit 28. In this case, step S54 is omitted. The specific operation may include operations for turning on and off the power of the lighting apparatus 20 (simply turning on and off), or may not include such operations. In addition, in step S55, the detection unit 22a may indirectly detect a specific operation by detecting the light-emitting state of the light-emitting unit 28. Specifically, the detection unit 22a can detect the light-emitting state of the light-emitting unit 28 by detecting the dimming control signal output from the light-emission control unit 22c instead of the received control signal. After step S55, the user performs a login operation on the operation acceptance unit 11 of the information terminal 10, and the operation acceptance unit 11 accepts the login operation (S12). The control unit 12 causes the radio wave communication unit 13 to multicast the login request according to the login operation (S13). The login request is sent without specifying the destination. The radio wave communication unit 21a of the lighting fixture 20 obtains a registration request from the radio wave communication unit 13 (S14). The registration unit 22b generates the first information stored in the memory unit 23 that contains the first ID information (for example, SSID) of the lighting fixture 20, and causes the radio wave communication unit 21a to transmit the generated first information (S15). The first information is the response to the login request. In addition, when the light-emitting unit 28 obtains the registration request when it does not emit light in accordance with a specific operation, the registration unit 22b does not cause the radio wave communication unit 21a to transmit the first information. That is, the lighting fixture 20 does not respond to the registration request. At this time, the registration unit 22b may cause the radio wave communication unit 21a to send an error notification instead of the first information. The error notification to the information terminal 10 may include, for example, a message indicating that after performing a specific operation on the remote controller 40, the login operation must be performed again. If the first information is received by the radio wave communication unit 13 of the information terminal 10 (S16), the control unit 12 memorizes the first ID information of the lighting appliance 20 included in the received first information in the memory unit 14 (S56 ). Next, the control unit 12 generates the second information stored in the memory unit 14 and contains the second ID information of the information terminal 10, and causes the radio wave communication unit 13 to transmit the generated second information (S18). The second information is sent to the lighting fixture 20 based on the first ID information stored in the memory unit 14. When the radio wave communication part 21a of the lighting fixture 20 receives the second information (S19), the registration part 22b performs a registration process (S24). The registration unit 22b stores the second ID information in the storage unit 23, for example. With this, the information terminal 10 is registered in the lighting fixture 20. Finally, the registration unit 22b causes the radio wave communication unit 21a to send a registration completion notification (S25). The registration completion notification is transmitted to the information terminal 10 based on the second ID information stored in the storage unit 23, and received by the radio wave communication unit 13 of the information terminal 10 (S26). After performing the above operations, the user can use the information terminal 10 to control the lighting appliance 20 in addition to the remote control 40. In the operation example 3 described above, the registration unit 22b logs in to the information terminal 10 when it is determined that a registration request has been obtained after detecting a specific operation on the remote controller 40. Accordingly, since the specific operation of the remote controller 40 becomes a registration requirement of the information terminal 10, it is possible to suppress the information terminal located outside the building where the lighting fixture 20 is installed from being mistakenly registered. In addition, it is possible that after detecting a specific operation in step S55 of Operation Example 3, the registration unit 22b uses the timer unit 24 to start measurement for a specific period, and logs in to the information terminal 10 when a registration request is acquired within the specific period. That is, there may also be a time limit related to the acquisition of the login request. In this case, when a registration request is obtained after a specific period of time has passed, the registration unit 22b does not cause the radio wave communication unit 21a to transmit the first information. In other words, when a login request is obtained after a specific period of time has passed, the login unit 22b does not log in to the information terminal 10. At this time, the registration unit 22b may cause the radio wave communication unit 21a to send an error notification instead of the first information. The error notification is sent to the information terminal 10. The error notification may include, for example, a message indicating that a specific operation on the remote controller 40 must be performed again. [Effects, etc.] As described above, the lighting system 100 includes: a radio wave communication unit 21a that obtains a login request for registering the information terminal 10 as a device that controls the lighting appliance 20; and a detection unit 22a that detects the user The operation device operated by the user to control the lighting appliance 20 is a specific operation different from the operation device for detecting the information terminal 10; and the registration unit 22b, which determines that a registration request has been acquired and detects the operation device For specific operations, log in to the information terminal 10. The radio wave communication unit 21a is an example of an acquisition unit. Therefore, since the operation of the operation device becomes a registration requirement, it is possible to prevent the information terminals of other users who cannot operate the operation device from being accidentally registered. In addition, the registration unit 22b may log in to the information terminal 10 when it determines that an operation specific to the operation device is detected after obtaining a registration request. With this, since the operation device is operated as a registration requirement after the registration request is obtained, it is possible to suppress erroneous registration of information terminals of other users who cannot operate the operation device. In addition, the registration unit 22b may register the information terminal 10 when a specific operation on the operation device is detected within a specific period after it is determined that the registration request is acquired. In this way, due to the limitation of the time associated with a specific operation, it is possible to suppress the mis-registration of information terminals of other users. In addition, the lighting system 100 may further include a light emission control unit 22c which, when it is determined that a specific operation on the operation device is detected, causes the lighting fixture 20 that emits light in the first aspect to be in a second state different from the first aspect Luminescence. Thereby, the user can change the light-emitting state of the lighting fixture 20 (light-emitting part 28) by a specific operation. In addition, the lighting system 100 may further include a light emission control unit 22c that switches whether to change the light emission state of the lighting fixture 20 according to whether a specific operation on the operation device is detected within a specific period. In this way, the lighting system 100 can switch whether to change the light emitting state of the lighting fixture 20 according to whether a specific operation is associated with login. In addition, when it is determined that the specific operation of the operating device is detected outside the specific period, the light emission control unit 22c may cause the lighting fixture that emits light in the first aspect to emit light in a second aspect different from the first aspect. When it is determined that the specific operation of the operation device is detected within a specific period, the light emission control unit 22c may cause the lighting fixture 20 that emits light in the first state to emit light in the first state as it is. Thereby, since the light emitting state of the lighting fixture 20 (light emitting unit 28) is not changed according to the specific operation performed in association with the login, it is possible to suppress the change of the light emitting state against the user's intention. In addition, when it is determined that the specific operation of the operation device is detected within a specific period, the light emission control unit 22c may cause the lighting fixture that emits light in the first aspect to emit light in a second aspect different from the first aspect. When it is determined that the specific operation of the operation device is detected outside the specific period, the light emission control unit 22c causes the lighting fixture 20 that emits light in the first aspect to emit light in the first aspect as it is. In this way, the lighting system 100 can make the user recognize that the user has appropriately performed the specific operation associated with the registration of the information terminal 10 according to the change of the light emitting state of the light emitting unit 28. In addition, the registration unit 22b may log in to the information terminal 10 when it is determined that a registration request has been obtained after detecting a specific operation on the operation device. In this way, since the registration request is obtained after the operation device is operated and becomes a registration requirement, it is possible to prevent the information terminals of other users who cannot operate the operation device from being accidentally registered. Furthermore, the operation device may be a wall switch 30 that turns on or off the power supply to the lighting fixture 20 according to the user's operation. As a result, since the operation of the wall switch 30 becomes a registration requirement, it is possible to suppress the information terminal of another user who cannot operate the wall switch 30 from being accidentally registered. In addition, the operation device may be a remote controller that transmits a control signal to the lighting fixture 20 by infrared communication according to the user's operation. As a result, since the operation of the remote controller 40 becomes a registration requirement, it is possible to suppress the information terminal of another user who cannot operate the remote controller 40 from being mistakenly registered. <Other Embodiments> The lighting system of the embodiment has been described above, but the present invention is not limited to the above embodiment. In the above-mentioned embodiment, the lighting apparatus includes the acquisition unit, the detection unit, and the registration unit, but some or all of these constituent elements may be provided by other devices. For example, when a lighting control device (relay device) interposed between an information terminal and a lighting fixture is included in the lighting system, the lighting control device may include a part or all of an acquisition unit, a detection unit, and a registration unit. In addition, in the above-mentioned embodiment, it is explained that the operation device is a wall switch or a remote controller, but the operation device may be other devices. For example, the operation device may also be an information terminal that has been registered differently from the information terminal to be registered next. In addition, it is possible to register a plurality of lighting appliances in one information terminal in parallel. For example, by using a plurality of lighting appliances to receive a login request sent by multicast from an information terminal, and a plurality of lighting appliances responding to the received login requests respectively, one information terminal can be used in parallel to a plurality of lighting appliances. log in. For example, in the above-described embodiment, an LED element (LED) is used as a light-emitting element in the light-emitting section. However, in the light-emitting part, as the light-emitting element, a semiconductor light-emitting element such as a semiconductor laser, a solid light-emitting element such as organic EL (Electro Luminescence) or inorganic EL, or a fluorescent lamp may be used. . Moreover, in the above-mentioned embodiment, the control unit may be constituted by dedicated hardware or implemented by executing a software program suitable for each constituent element. Each constituent element can be realized by a program execution unit such as a CPU or a processor reading out a software program recorded on a recording medium such as a hard disk or a semiconductor memory and executing it. In addition, each constituent element may be a circuit (or an integrated circuit). These circuits can form one circuit as a whole, or they can be different circuits. Moreover, these circuits can be either general-purpose circuits or dedicated circuits. Moreover, the entire or specific aspect of the present invention can be realized by a recording medium such as a system, device, method, integrated circuit, computer program, or computer-readable CD-ROM. In addition, it can also be implemented in any combination of systems, devices, methods, integrated circuits, computer programs, and recording media. For example, the present invention can be realized by lighting appliances. In addition, the present invention can also be implemented by the login method of the information terminal. In addition, the sequence of the plural processing in the program chart and the flowchart described in the above embodiment is an example. The order of plural processes can be changed, and plural processes can be executed in parallel. In addition, various embodiments can be obtained by applying various changes conceivable to those skilled in the art, or by arbitrarily combining the constituent elements and functions of each embodiment without departing from the scope of the invention. The form is also included in the present invention.
