FLASH MODULE CONTAINING REFLECTIVE CUP ARRAY FOR FLUORESCENCE SUBSTANCE CONVERSION LED

• Main Author: MARK MELVIN BUTTERWORTH
• Format: Patent
• Language: English; Japanese
• Published: 05.08.2021
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; BASIC ELECTRIC ELEMENTS; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION; SEMICONDUCTOR DEVICES

To provide an LED camera flash module for generating a beam that is tightly matched to an aspect ratio of a field of a camera so as to be thicker than that of a conventional flash module.SOLUTION: A rectangular array of a plurality of LEDs 20 is attached onto a single lead frame 12, and the lead frame connects the plurality of LEDs in serial. Each LED is within, for example, 5×3 array or 4×3 array. The array of a reflective cup 18 is molded on the lead frame or is fixed to the lead frame. Each cup includes a substantial quadrate opening part 24 and generates a quadrate sub beam. A layer of a fluorescence substance is positioned in an inner part of each cup, covers a related LED, and generates a white color light. An aspect ratio of the array is selected so as to be nearly matched to an aspect ratio (e.g., 16:9) of a field of a camera.SELECTED DRAWING: Figure 1 【課題】従来のフラッシュモジュールよりも薄く、かつカメラの視野のアスペクト比にもっと緊密に整合するビームを生成するLEDカメラフラッシュモジュールを提供する。【解決手段】複数のLED２０の長方形アレイが単一リードフレーム上１２に取り付けられ、リードフレームは、複数のLEDを直列に接続する。LEDは、例えば５×３アレイ又は４×３アレイ内にある。反射性カップ１８のアレイがリードフレーム上に成型され、或いはリードフレームに固着され、カップの各々が実質的に正方形開口部２４を有し、正方形サブビームを生成する。蛍光体の層が各カップ内部に位置され、関連するLEDを覆い、白色光を生成する。アレイのアスペクト比が、カメラの視野のアスペクト比（例えば１６：９）にほぼ整合するように選択される。【選択図】図１