SENSOR DEVICE, ELECTRONIC EQUIPMENT AND MANUFACTURING METHOD OF SENSOR DEVICE

• Main Authors: YOKOGAWA SEIICHI, INOUE TAKAHIRO, TAKEUCHI NOBORU
• Format: Patent
• Language: English
• Published: 20.10.2011
• Subjects: BASIC ELECTRIC ELEMENTS; COLORIMETRY; DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FREQUENCY-CHANGING; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; RADIATION PYROMETRY; SEMICONDUCTOR DEVICES; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING

PROBLEM TO BE SOLVED: To provide a sensor device adjusting variation of measurement result resulting from production tolerance, with a high degree of accuracy.SOLUTION: The sensor device 10 is equipped with: a photodiode PD1 receiving extraneous light to generates current corresponding to the intensity of light concerned; a light receiving detection circuit 2 transforming the current to electric signal; and a trimming adjusting circuit 6 outputting adjusting signal V1 so as to adjust light receiving sensitivity of the light receiving detection circuit 2.