JPH0233383U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図は本考案による赤外センサの一実施例を
示す概略斜視図、第２図は第１図の実施例におけ
る発光部の垂直断面図、第３図は第１図の実施例
の使用状態を示す側面図、第４図は第１図の実施
例の使用状態を示す斜視図である。 １０……赤外センサ；１１……発光部；１２…
…受光部；１３，１６……フレネルレンズ；１４
，１５……赤外発光素子；１７，１８……赤外受
光素子；１９，２０……検知エリア；２１……壁
面。 Fig. 1 is a schematic perspective view showing an embodiment of an infrared sensor according to the present invention, Fig. 2 is a vertical sectional view of the light emitting part in the embodiment of Fig. 1, and Fig. 3 is a use of the embodiment of Fig. 1. FIG. 4 is a side view showing the state, and FIG. 4 is a perspective view showing the state in which the embodiment of FIG. 1 is used. 10... Infrared sensor; 11... Light emitting part; 12...
... Light receiving part; 13, 16 ... Fresnel lens; 14
, 15... Infrared light emitting element; 17, 18... Infrared light receiving element; 19, 20... Sensing area; 21... Wall surface.

Claims (1)

【実用新案登録請求の範囲】 (1) 複数個の赤外発光素子と一つの発光光学系
から成る発光部と、該発光部に隣接して配設され
ていて且つそれぞれ各赤外発光素子と対をなすべ
き同数の複数個の赤外受光素子と一つの受光光学
系から成る受光部とを含んでおり、各々対となる
赤外発光素子及び赤外受光素子が、それぞれ発光
光学系及び受光光学系を介して共通の検知エリア
に関連せしめられていることにより、複数の異な
る検知エリアを備えていることを特徴とする赤外
センサ。 (2) 前記発光光学系及び受光光学系が、それぞ
れ光学レンズであることを特徴とする、請求項第
１項に記載の赤外センサ。 (3) 前記発光光学系及び受光光学系が、それぞ
れフレネルレンズであることを特徴とする、請求
項第２項に記載の赤外センサ。 (4) 前記発光光学系及び受光光学系が、それぞ
れ反射ミラーであることを特徴とする、請求項第
１項に記載の赤外センサ。[Claims for Utility Model Registration] (1) A light emitting unit consisting of a plurality of infrared light emitting elements and one light emitting optical system, and a light emitting unit disposed adjacent to the light emitting unit and each infrared light emitting element, respectively. It includes the same number of infrared light-receiving elements to form a pair and a light-receiving section consisting of one light-receiving optical system, and each pair of infrared light-emitting element and infrared light-receiving element has a light-emitting optical system and a light-receiving element, respectively. An infrared sensor comprising a plurality of different detection areas that are associated with a common detection area via an optical system. (2) The infrared sensor according to claim 1, wherein the light emitting optical system and the light receiving optical system are each optical lenses. (3) The infrared sensor according to claim 2, wherein the light emitting optical system and the light receiving optical system are each Fresnel lenses. (4) The infrared sensor according to claim 1, wherein each of the light emitting optical system and the light receiving optical system is a reflecting mirror.