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Laser rangefinders

Laser rangefinders have numerous applications and are used, for example, to measure rooms and buildings in the construction sector and for distance measurement in industry. In most cases, the devices use a continuous laser beam with a modulated intensity and measure the phase shift of the laser beam reflected by the object in comparison to the output beam (phase measurement process). Laser rangefinders use sensitive avalanche photodiodes that enable them to cover ranges of up to 200 meters.

For measuring the phase shift, avalanche photodiodes enable the reflected signal from the measuring object to be mixed with the modulation frequency. The ability to trace the operating point of the APD synchronously with the modulated laser signal means that the detected and sent signals can be multiplied directly in the APD.

Our sensor solutions for laser rangefinders

First Sensor's avalanche photodiodes (APD) are optimized for various wavelengths from blue (400 nm) to infrared (1064 nm). Series 8 and Series 9 have their highest sensitivity at 650 to 850 nm or 905 nm and are used in many laser rangefinders. Series 10 is particularly suitable for all applications using Nd:YAG laser beam sources at 1064 nm. Optimized for the red wavelength range, Series 12 offers extremely fast response times and can be operated with low bias voltages. If particularly high amplifications are required, there are also hybrid solutions available that further amplify the APD signal. In this case, the integrated amplifier is optimized for the photodiode and enables compact structures as well as very high signal-to-noise ratios.

Company
First Sensor is one of the world's leading suppliers in the field of sensor systems. In the growth market of sensor systems, First Sensor develops and produces customer-specific solutions for the ever-increasing number of applications in the industrial, medical, and mobility target markets. Our goal here is to identify, meet and solve the challenges of the future with our innovative sensor solutions early on.
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Applications
In many market-specific applications, sensors are components that are critical to your success. First Sensor is the partner you need on projects that call for careful selection, customized adaptation and the highest standards of excellence. Our Business Units Industrial, Medical and Mobility are clearly aligned to the core markets of industrial applications, medical technology as well as automotive and transport.
Tailored Solutions
In the growth market of sensor systems, First Sensor develops and produces customer-specific sensors, electronics, modules and complex systems for the ever-increasing number of applications in the industrial, medical, and mobility target markets. As a solution provider the company offers complete development services from a first draft and proof of concept up to the development of prototypes and finally serial production. First Sensor offers comprehensive development expertise, state-of-the-art packaging technologies and production capacities in clean rooms from ISO class 8 to 5.
Tailored Solutions
In the growth market of sensor systems, First Sensor develops and produces customer-specific sensors, electronics, modules and complex systems for the ever-increasing number of applications in the industrial, medical, and mobility target markets. As a solution provider the company offers complete development services from a first draft and proof of concept up to the development of prototypes and finally serial production. First Sensor offers comprehensive development expertise, state-of-the-art packaging technologies and production capacities in clean rooms from ISO class 8 to 5.

Tailored Solutions
Career
Innovation, excellence, proximity – these are our values, our ambition, our drive. Anything less is not an option. Our sensor solutions stand for technical innovation and economic growth. As such, they form the basis for the development and application of new technologies in almost all areas of life. We aim to shape this future together with you.