DISTANCE MEASURING SYSTEM, LIGHT RECEIVING MODULE, AND METHOD OF MANUFACTURING BANDPASS FILTER
A distance measuring system includes a light source unit that emits infrared light toward a target object, a light receiving unit that receives the infrared light from the target object, and an arithmetic processing unit that obtains information regarding a distance to the target object on the basis...
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| creator | YOKOGAWA, SOZO KIKUCHI, YUKI SUWA, TAISUKE CHIYODA, MAKOTO |
| description | A distance measuring system includes a light source unit that emits infrared light toward a target object, a light receiving unit that receives the infrared light from the target object, and an arithmetic processing unit that obtains information regarding a distance to the target object on the basis of data from the light receiving unit, in which an optical member including a bandpass filter that is selectively transparent to infrared light in a predetermined wavelength range is arranged on a light receiving surface side of the light receiving unit, and the bandpass filter has a concave-shaped light incident surface. |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGNOSIS HUMAN NECESSITIES HYGIENE IDENTIFICATION LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MEDICAL OR VETERINARY SCIENCE OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION SURGERY TESTING |
| title | DISTANCE MEASURING SYSTEM, LIGHT RECEIVING MODULE, AND METHOD OF MANUFACTURING BANDPASS FILTER |
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