Distance measuring system
AssigneeTopcon Corporation
InventorMasahiro Ohishi
Life of this patent
Estimating the term…
Abstract
A distance measuring system, wherein the distance measuring unit comprises a reflection light beam optical path leading to a photodetection unit, the photodetection unit 7 for receiving a reflection light beam from an object to be measured, an optical member provided on the optical path of the reflection light beam and used for deflecting the reflection light beam toward the photodetection unit, and a deflector 50 arranged on a surface of the optical member and used for deflecting the reflection light beam tilted with respect to the normal optical path toward the photodetection unit.
Claims7
A distance measuring system comprising an optical system integrally having a distance measuring optical system for receiving a range finding beam reflected from an object to be measured and a collimation optical system for collimating said object to be measured, a distance measuring unit having a photodetection unit for receiving said range finding beam, a range finding beam optical path leading said range finding beam from said optical system toward said photodetection unit, and a dividing means for dividing said range finding beam out of the light beams entering said optical system, wherein said distance measuring unit comprises an optical member provided on said range finding beam optical path and having a reflection surface for reflecting said range finding beam divided by said dividing means toward said photodetection unit, and a deflector arranged on said reflection surface and used for deflecting said divided range finding beam tilted with respect to the normal optical path toward said photodetection unit.
A distance measuring system according to claim 7, wherein said deflector is a diffraction means which increases the deflection of the transmitted light beam the more said deflector is shifted away from the normal optical path.
A distance measuring system according to claim 7, wherein said deflector consist of a plurality of prisms which the more the deflection of the transmitted light beam increases, the more said deflector is shifted away from the normal optical path.
A distance measuring system comprising an optical system integrally having a distance measuring optical system for receiving a range finding beam reflected from an object to be measured and a collimation optical system for collimating said object to be measured, a distance measuring unit having a photodetection unit for receiving said range finding beam, a range finding beam optical path leading said range finding beam from said optical system toward said photodetection unit, and a dividing means having a transmitting surface for dividing said range finding beam out of the light beams entering said optical system and for transmitting the divided range finding beam, wherein said distance measuring unit comprises an optical member provided on said range finding beam optical path and having a reflection surface for reflecting said range finding beam divided by said dividing means toward said photodetection unit, and said transmitting surface comprises a deflector used for reflecting said transmitted range finding beam tilted with respect to the normal optical path toward said photodetection unit.
Dependencies are inferred from the claim text.