LIGHT IRRADIATION DEVICE

• Main Authors: KONO TOMOKANE, KIHARA TOSHIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2015
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BASIC ELECTRIC ELEMENTS; BLASTING; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPSOR SEAWEED; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FISHING; FORESTRY; FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF; HEATING; HORTICULTURE; HUMAN NECESSITIES; HUNTING; LIGHTING; MECHANICAL ENGINEERING; NON-PORTABLE LIGHTING DEVICES; SEMICONDUCTOR DEVICES; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR; SYSTEMS THEREOF; TRAPPING; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS; WATERING; WEAPONS

PROBLEM TO BE SOLVED: To achieve both improvement in radiation efficiency on a face to be irradiated and improvement in radiation illuminance and the degree of flatness (uniformity) of the radiation illuminance at a low cost and low power consumption.SOLUTION: A plurality of LEDs 1 are two-dimensionally arranged in light emitting areas 7 and 8 at regular intervals, the LEDs being surface-mounted light emitting diodes having the same specifications. One lens cap is attached to each LED 1. Each lens cap is disposed so that the light-spreading angle of outgoing light narrows from the centers of the light emitting areas 7 and 8 toward the outer peripheral sides. 【課題】被照射面における放射効率の向上、放射照度の平坦度（均一度）及び放射照度の向上の両立を、低コストかつ低消費電力で実現する。【解決手段】ＬＥＤ１は、発光領域７、８に等間隔に２次元配列され、仕様が同一の複数の表面実装型の発光ダイオードである。レンズキャップは、各ＬＥＤ１に１つずつ取り付けられている。発光領域７、８の中心から外周側に向かって、出射光の指向角が狭くなるように、各レンズキャップが配置されている、【選択図】図１