Bereichsbasierte Messvorrichtung und Verfahren für Zentrale Wellenlänge

Details

Veröffentlichungs-Nr.

EP4803869

Anmeldetag

8. November 2024

Veröffentlichung

15. Mai 2025

Rechtsraum

EP

IPC

G01J9/00

Abstract

The present disclosure relates to an area-based measurement device and method for central wavelength. The apparatus comprises: a measured light-emitting body that emits measured light; a filter switching unit that switches between a first filter and a second filter, thereby allowing the measured light to pass through the first filter and the second filter respectively; and a photosensitive device that detects a first light transmitted through the first filter to obtain a first measurement value, and detects a second light transmitted through the second filter to obtain a second measurement value. The first filter and the photosensitive device constitute a first optical system, and the second filter and the photosensitive device constitute a second optical system. Within a wavelength range of the measured light, a ratio of spectral characteristic curves of the first optical system and the second optical system has no repeated values, and the central wavelength of the measured light is obtained from a ratio of the first measurement value and the second measurement value. Thus, the central wavelength of the measured light can be measured by a simple method.

Anmelder

Firmen

Hamamatsu Photonics (China) Co., Ltd.
Hamamatsu Photonics K.K.

Land

🇨🇳 China

Fachgebiete