Laser distance meter has photodiode chip receiver arrangement with active photodiode surfaces on line aligned according to distance of optical axis from transmit and receive channel

摘要

The device has parallel separate transmit and receive channels consisting of a transmission lens with the source in its focal plane and a reception lens with a receiver arrangement in its focal plane in the form of a photodiode chip arrangement with active photodiode surfaces on a line aligned according to the optical axis's distance from the transmit and receive channel and at this distance from the active photodiode surface nearest the source. The device has parallel separate transmit and receive channels consisting of a transmission lens with the laser light source in its focal plane and a reception lens with a receiver arrangement in its focal plane. The receiver arrangement is a photodiode chip arrangement (4.1) with at least two active photodiode surfaces (7.1,7.2) on a line aligned according to the distance of the optical axis from the transmit and receive channel that is located at this distance from the active photodiode surface nearest the laser light source.