# US 11,079,274 B2 · Spectroscopic system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,079,274 B2 - Document ID: US11079274B2 - Status: Granted - Kind: B2 - Application number: 16/776,606 - Filed: 2020-01-30 - Published: 2020-08-06 - Granted: 2021-08-03 - Earliest claimed: 2019-01-31 - Assignees: Seiko Epson Corporation - Applicants: Seiko Epson Corporation - Inventors: Hikaru Kurasawa; Naoki Kuwata; Ryoki Watanabe - Web page: https://patentgrep.com/patent/US11079274B2 ## CPC - G01J 3/10: Arrangements of light sources specially adapted for spectrometry or colorimetry - G01J 3/021: {using plane or convex mirrors, parallel phase plates, or particular reflectors} - G01J 3/0256: {Compact construction} - G01J 3/0272: {Handheld} - G01J 3/0291: {Housings; Spectrometer accessories; Spatial arrangement of elements, e.g. folded path arrangements} - G01J 3/1256: {using acousto-optic tunable filter; (acousto-optic elements or systems G02F1/11, G02F1/33)} - G01J 3/26: using multiple reflection, e.g. Fabry-Perot interferometer, variable interference filters - G01J 3/2803: {using photoelectric array detector} - G01J 3/2823: {Imaging spectrometer} - G01J 3/42: Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry (beam switching arrangements G01J3/08) - G01J 3/28: Investigating the spectrum (using colour filters G01J3/51) - G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N) ## Abstract A spectroscopic system includes a main body including a light source that radiates light to a light transmissive measurement target, an imaging device that captures an image based on transmitted light having passed through the measurement target, and a spectroscopy section that is provided in an optical path between the light source and the imaging device and selectively transmits light that belongs to a specific wavelength region, and an attachment that includes an optical path changer that changes the direction of the optical path of the light outputted from the light source and is so attached to the main body as to form a placement space which is located between the optical path changer and the main body and in which the measurement target is placed. ## Claims ### Claim 1 A spectroscopic system comprising: a main body including: a light source configured to radiate light to a light transmissive measurement target; an imaging device configured to capture an image based on transmitted light that is generated by passing the light through the measurement target; a spectroscopy section that is provided in an optical path between the light source and the imaging device and is configured to selectively transmit light that belongs to a specific wavelength region; and a moving mechanism configured to selectively move the spectroscopy section between a first position and a second position; and an attachment that is attached to the main body, the attachment including: an optical path changer configured to change an optical path direction of the light from the light source; and a placement space which is located between the optical path changer and the main body and in which the light transmissive measurement target is placed, wherein, when the spectroscopy section is in the first position, the spectroscopy section is located between the light source and the light transmissive measurement target in the optical path, and the light from the light source passes through the spectroscopy section before the light enters the light transmissive measurement target, and when the spectroscopy section is in the second position, the spectroscopy section is located between the light transmissive measurement target and the imaging device in the optical path, and the transmitted light from the light transmissive measurement target passes through the spectroscopy section before the transmitted light enters the imaging device. ### Claim 2 (depends on 1) The spectroscopic system according to claim 1, wherein the attachment is attachable to and detachable from the main body. ### Claim 3 (depends on 1) The spectroscopic system according to claim 1, wherein the light source and the imaging device face toward a same direction along the optical path. ### Claim 4 (depends on 3) The spectroscopic system according to claim 3, wherein a direction in which the light source outputs the light and a direction in which the transmitted light is incident on the imaging device are opposite to each other. ### Claim 5 (depends on 1) The spectroscopic system according to claim 1, wherein the optical path changer includes a reflector that reflects the light to change the optical path direction. ### Claim 6 (depends on 5) The spectroscopic system according to claim 5, wherein the reflector has a first reflection surface that reflects the light outputted from the light source and a second reflection surface that reflects the light reflected off the first reflection surface toward the imaging device. ### Claim 7 (depends on 1) The spectroscopic system according to claim 1, wherein the optical path changer includes a light guide that includes a light incident section on which the light from the light source is incident and a light exiting section via which the light exits toward the imaging device. ### Claim 8 (depends on 1) The spectroscopic system according to claim 1, wherein a container that contains a gas or a liquid is placed in the placement space. ### Claim 9 (depends on 1) The spectroscopic system according to claim 1, wherein the main body includes a display section, at least one processor, a memory, and at least one program, and the at least one program is stored in the memory, is executed by the at least one processor, and contains instructions for executing any of spectroscopic methods.