ROHM Infrared Optical Sensors operate
in the near infrared range (700nm
- 1400nm) of the electromagnetic
spectrum and are ideal for optical
sensing and optical communications
since IR is easy to implement as the
signal source. In this range, optical
sensors are used in industrial, consumer
and other applications for sensing
movement, position, proximity, ambient
light, speed (encoders) and direction of
motion.
In particular, ROHM’s product lineup
includes both through-hole and surface
mount parts in the following categories:
Infrared emitters
Infrared sensors/phototransistors
Photointerrupters
Tilt sensors
IrDA communication modules
Remote control module receivers
Optical wireless communication
uses IR data transmission for short
range applications such as computer
peripherals and PDAs. Infrared Data
Association (IrDA) standards are normally
used for these signals.
For optical communication, a modulated
IR light beam transmitted by an emitter
LED is received by a silicon photodiode/
transistor. Since IR does not penetrate
walls, it does not interfere with other
signals in indoor environments. This
makes IR technology the most commonly
used technique for remotely controlling
appliances.
The following is a list of some general
applications for Infrared PhotoOptics:
Office Automation (OA) equipment
such as copiers, fax machines and
printers
Vending machines
Amusement and gaming products
Home entertainment products
Medical / healthcare equipment.
Banking terminals such as ATMs
Testing equipment such as IC/LSI
testers, encoders and more
1.888.775.ROHM www.rohm.com/us CNA11003_sg
Optical Sensors
from ROHM Semiconductor
ROHM’s Product Focus
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