An optical sensor is a dedicated sensing device that transforms optical signals into electronic signals. It functionality is similar to that of a photo resistor, it measures the physical quantity of light and converts it into a form that can be interpreted by a measuring device. Among key features of an optical sensor is its capability of measuring the variations from one or more light beams. This variation or change is most often based around changes in light intensity. These sensors have been widely deployed diverse purposes such as imaging, quality and process control, metrology, remote sensing, medical technologies, among others.
Based on its integration position into the device, optical sensors can be either external or internal. Internal sensors are most often used to measure the bends and other small changes in direction while external sensors collect and transmit a required amount of light. An optical sensor is capable of performing a varied range of tasks. Also, the recent development of advanced three dimensional sensors is creating a progressive impact on the optical sensors market.
The advantageous features of optical sensors over conventional sensors is motivating research and development in this field. Some of its significant properties that are better compared to non-optical sensors include improved sensitivity and electrical passiveness, better multiplexing capabilities, freedom from electromagnetic interference, etc. The ease of availability of good quality and reasonably priced optical fibers and optoelectronic components is aiding the development of optical sensors for biological applications. There has been growing shift in focus towards safety features such as installing fingerprint recognition and secure mobile payment verification. This is further supported by ongoing technological advancements in smartphone biometrics. All these factors coupled together are expected to drive the optical sensors market globally during the forecast period.
However, there are certain factors that are restraining optical sensors market growth such as comparatively high cost of optical sensors, limited standardization as well as lack of awareness regarding its functionality. These factors are acting as a major hindrance in the adoption of optical sensors by various end-use segments. On the other hand, notable opportunities exist around vehicle infotainment systems (in-car systems) where there is a strong significance of advancement in safety and vehicle-to-vehicle communications/ vehicle to-infrastructure. Also, advancement in mobile technology with innovative features and models is paving way for new market growth opportunities in near future.
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The optical sensors market can be segmented based on optical sensing method, optical sensor type, technology, end-use, and geographically. Based on optical sensing method, the market can be segregated into intrinsic and extrinsic optical sensors. Classification by image type comprises position sensors, fiber optic sensors, infrared sensors, image sensors, proximity and ambient light sensors, and others.
In terms of technology, the optical sensors market is bifurcated into hyper spectral imaging, near IR spectroscopy, photo-acoustic tomography and optical coherence tomography. By end-use, the market is segmented into aerospace & defense, consumer electronics, healthcare, automotive, industrial, oil & gas, research and others. The optical sensors market is studied for five geographic regions namely- North America, Europe, Asia Pacific, Middle East & Africa and South America. Among various regions, Asia-pacific is predicted to hold a major share in the optical sensors market due to ongoing rapid industrial development in consumer electronics, manufacturing, retail and automation sector.
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Among the various optical sensor types, image sensors are forecasted to dominate the optical sensors followed by position sensors and fiber-optic sensors globally. Some of the leading global players driving the optical sensors market are Hamamatsu Photonics K.K, ROHM Semiconductor, Baumer Electric Ag, ABB Ltd., Sofradir Ec Inc., Analog Devices Inc., Vigo System S.A., Texas Instruments Inc., Carlo Gavazzi Automation Spa, ST Microelecronics Inc., Teledyne Dalsa, Aptina Imaging, among others.
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