Spectral device

• Main Authors: Yonezawa Michiharu, Fukuyo Fumitsugu
• Format: Patent
• Language: English
• Published: 08.11.2016
• Subjects: COLORIMETRY; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; RADIATION PYROMETRY; TESTING

The object is to easily expand a variable range of selective wavelengths without enlarging a device. A spectral device 1 of the present invention includes four band pass filters 11a to 11d through which a light L2 from a light source 3 is selectively transmitted within a wavelength range according t...