LIGHT PROJECTOR, IMAGING APPARATUS, BEAM LIGHT CONTROL METHOD AND PROGRAM

• Main Author: OKADA SHUNJI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2015
• 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; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide a light projector capable of controlling orientation direction of a beam light corresponding to a camera imaging execution mode.SOLUTION: The light projector includes: a beam light unit that emits a beam of light; a light-interlocked camera fixing part which is driven corresponding to an orientation direction of the beam light; and a light orientation angle stabilizing control section that controls the orientation direction of the beam light. In imaging processing execution mode of a camera mounted on the light-interlocked camera fixing part, an LPF converts a sensor detection signal as a displacement detection signal of the beam light into a long period type signal. The light orientation angle stabilizing control section generates a long period type position correction signal corresponding to the long period type conversion sensor detection signal, and performs a control processing to maintain the orientation direction of the beam light by applying the generated long period type position correction signal. 【課題】カメラ撮影実行モードに応じたビームライトの指向方向制御を実行する。【解決手段】光照射を行うビームライトと、ビームライトの指向方向に応じて駆動されるライト連動型カメラ固定部と、ビームライトの指向方向制御を実行するライト指向角度安定制御部を有する投光装置において、ライト連動型カメラ固定部の装着カメラによる撮影処理実行モードにおいて、ビームライトの変位検出信号であるセンサ検出信号をＬＰＦによって長周期型に変換する。ライト指向角度安定制御部は、長周期型の変換センサ検出信号に応じた長周期型位置補正信号を生成し、生成した長周期型位置補正信号を適用してビームライトの指向方向を維持する制御処理を行なう。【選択図】図１０