Distance measuring instrument

Abstract

Abstract PURPOSE:To improve distance measuring accuracy by detecting the light emis sion quantity of an electronic flashing device and correcting the measured dis tance based on the detected light emission quantity and correcting a distance measuring error by variance of the light emission quantity. CONSTITUTION:A photodetection part 3 photodetects light which is emitted by the electronic flashing device 1 and reflected on an object. Next, a measure ment means 4 measures the distance to the object based on the absolute photodetection quantity at the photodetection part 3. Here, a light emission quantity detection means 5 detects the light emission quantity of the flashing device 1. Then, a correction means 6 corrects the measured distance by the measurement means 4 in order to correct the measuring error by the variance of the light emission quantity based on the detected light emission quantity by the detection means 5. In this way, the distance measuring accuracy can be improved.

Inventors

• 👤 Motonobu Matsuda
• 👤 松田　元伸
• 👤 Yoshihiro Tanaka
• 👤 良弘 田中
• 👤 Motohiro Nakanishi
• 👤 基浩 中西
• 👤 Nobuyuki Taniguchi
• 👤 信行 谷口
• 👤 Hiroshi Otsuka
• 👤 博司 大塚

Bibliographic Details