# US 2022/0035009 A1 · Electromagnetic wave detection apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2022/0035009 A1 - Document ID: US20220035009A1 - Status: Published application - Kind: A1 - Application number: 17/278,759 - Filed: 2019-09-13 - Published: 2022-02-03 - Earliest claimed: 2018-09-26 - Assignees: KYOCERA Corporation - Applicants: KYOCERA Corporation - Inventors: Hiroki OKADA; Eri TAKEUCHI - Web page: https://patentgrep.com/patent/US20220035009A1 ## CPC - G01S 7/4863: Detector arrays, e.g. charge-transfer gates - G02B 26/105: {with one or more pivoting mirrors or galvano-mirrors (G02B26/101 takes precedence)} - G01N 21/49: within a body or fluid - G01S 7/4813: {Housing arrangements} - G01S 7/4817: {relating to scanning} - G01S 17/86: Combinations of lidar systems with systems other than lidar, radar or sonar, e.g. with direction finders - G01S 17/89: for mapping or imaging - G02B 26/0833: {the reflecting element being a micromechanical device, e.g. a MEMS mirror, DMD (G02B26/0825 takes precedence; micromechanical devices in general B81B)} - H01S 5/0239: Combinations of electrical or optical elements - G01J 1/42: using electric radiation detectors (optical or mechanical part G01J1/04; by comparison with a reference light or electric value G01J1/10) - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G01N: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES (measuring or testing apparatus or processes other than immunoassay, involving enzymes or microorganisms C12M, C12Q) - H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL - 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 Simplification of a mechanism for scanning on a measuring object using electromagnetic waves is intended. An electromagnetic wave detection apparatus includes a radiation unit including a plurality of radiation regions capable of radiating electromagnetic waves, a switching unit, and a first detector. The switching unit includes a plurality of switching elements that can be switched to a first state for causing incident electromagnetic waves reflected by an object, from among electromagnetic waves radiated from the radiation unit, to progress in a first direction. The first detector is configured to detect electromagnetic waves progressing in the first direction. ## Claims ### Claim at position 1 -24. (canceled) ### Claim 25 An electromagnetic wave detection apparatus comprising: a radiation unit capable of radiating electromagnetic waves; a first detector configured to detect electromagnetic waves progressing in a first direction; and a switching unit including a plurality of switching elements that can be switched between a first state for causing incident electromagnetic waves reflected by an object, from among electromagnetic waves radiated from the radiation unit, to progress in the first direction and a second state for suppressing the incident electromagnetic waves from progressing to the first detector. ### Claim 26 (depends on 25) The electromagnetic wave detection apparatus according to claim 25, further comprising: a controller; and a scanner configured to change a direction of electromagnetic waves radiated from the radiation unit between a first timing and a second timing after the first timing, wherein the plurality of switching elements include a first switching element on which electromagnetic waves reflected by the object, from among electromagnetic waves radiated from the radiation unit at the first timing, are to be incident and a second switching element on which electromagnetic waves reflected by the object, from among electromagnetic waves radiated from the radiation unit at the second timing, are to be incident, the second switching element being different from the first switching element, and the controller is configured to cause the switching unit to switch the first switching element and the second switching element to the first state before the first timing. ### Claim 27 (depends on 25) The electromagnetic wave detection apparatus according to claim 25, further comprising: a controller, wherein the radiation unit includes a first radiation region and a second radiation region that are capable of radiating electromagnetic waves, the plurality of switching elements include a first switching element on which electromagnetic waves reflected by the object, from among electromagnetic waves radiated from the first radiation region at a first timing, are to be incident and a second switching element on which electromagnetic waves reflected by the object, from among electromagnetic waves radiated from the second radiation region at a second timing after the first timing, are to be incident, the second switching element being different from the first switching element, and the controller is configured to cause the switching unit to switch the first switching element and the second switching element to the first state before the first timing. ### Claim 28 (depends on 26) The electromagnetic wave detection apparatus according to claim 26, wherein the controller is configured to cause the switching unit to: switch the first switching element to the second state after electromagnetic waves incident on the first switching element are reflected by the first switching element and progress in the first direction; and switch the second switching element to the second state after electromagnetic waves incident on the second switching element are reflected by the second switching element and progress in the first direction. ### Claim 29 (depends on 26) The electromagnetic wave detection apparatus according to claim 26, wherein the controller is configured to cause the switching unit to switch at least one of the plurality of switching elements on which electromagnetic waves reflected by the object are to be incident to the first state and to switch at least one of the plurality of switching elements on which electromagnetic waves reflected by the object are not to be incident to the second state, between the first timing and the second timing. ### Claim 30 (depends on 25) The electromagnetic wave detection apparatus according to claim 25, wherein the radiation unit includes a plurality of radiation regions that are capable of radiating electromagnetic waves and arranged in one-dimension. ### Claim 31 (depends on 25) The electromagnetic wave detection apparatus according to claim 25, wherein the radiation unit includes a plurality of radiation regions that are capable of radiating electromagnetic waves and arranged in two-dimensions. ### Claim 32 (depends on 30) The electromagnetic wave detection apparatus according to claim 30, wherein at least some of the plurality of radiation regions are aligned along a straight line, and the electromagnetic wave detection apparatus further comprising a scanner configured to change a direction of electromagnetic waves radiated from the radiation regions aligned along the straight line to a direction intersecting with the straight line. ### Claim 33 (depends on 30) The electromagnetic wave detection apparatus according to claim 30, further comprising: a controller configured to cause at least one of the plurality of radiation regions to radiate electromagnetic waves and, based on position information of a spot of the electromagnetic waves formed on the switching unit by the electromagnetic waves, cause the switching unit to switch some of the plurality of switching elements to the first state. ### Claim 34 (depends on 33) The electromagnetic wave detection apparatus according to claim 33, wherein the controller is configured to cause the plurality of radiation regions to sequentially radiate electromagnetic waves and, based on position information of spots of the electromagnetic waves sequentially formed on the switching unit, cause the switching unit to sequentially switch some of the plurality of switching elements to the first state. ### Claim 35 (depends on 33) The electromagnetic wave detection apparatus according to claim 33, wherein the controller is configured to cause the switching unit to switch switching elements in a plurality of predetermined regions to the first state in advance based on the position information of the spot of the electromagnetic waves formed on the switching unit, before the radiation unit radiates electromagnetic waves. ### Claim 36 (depends on 25) The electromagnetic wave detection apparatus according to claim 25, further comprising: a separator configured to separate incident electromagnetic waves into electromagnetic waves to progress in a direction toward the switching unit and electromagnetic waves to progress in a second direction; and a second detector configured to detect electromagnetic waves progressing in the second direction. ### Claim 37 (depends on 36) The electromagnetic wave detection apparatus according to claim 36, wherein the first detector is a distance measuring sensor, and the second detector is an image sensor.