OPL551A

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Optical sensors are devices used to detect the presence or absence of light or objects. Photo detectors are a type of optical sensors which use light-sensitive materials to convert light into electrical signals. Mechanical and electrical components are then used to trigger a logic output when light of a certain intensity is sensed. One popular example of such a device is the OPL551A Photo Detector with Logic Output.

The OPL551A is a low cost detector that can be used to detect light in a variety of applications. It features an active area measuring 400 x 500um, and it is housed in a 4.75 x 4.75mm package. The OPL551A is capable of detecting light from multiple angles and it is perfect for use in position sensing as well as automated optical inspection applications. The device has a Dark-on output type and it provides TTL compatible logic outputs. It is suitable for operating temperatures from -30°C to + 70°C. The device has a very high sensitivity with excellent dark resistance and a very wide spectral range from 200 to 1100nm. The OPL551A is well-suited to a variety of applications but is particularly popular in optical gaming boards, cameras, medical electronic equipment, staplers, printers and scanning equipment.

At the heart of the OPL551A is a photo-diode. This device uses materials that are sensitive to light and are capable of producing an electrical current when exposed to light. The proportion of the current depends on the intensity of the light. This current is then converted to a voltage signal which is then used to trigger a logic output. The OPL551A provides a logic high output when it senses light from a certain intensity up. It provides a logic low output when the light intensity is below a specified level. The LED recessed into the OPL551A is used solely to provide visible indication of operation.

The OPL551A is an ideal device for use in automated control or light sensing applications. It is capable of providing a reliable and accurate logic output when light of a certain intensity is sensed. The LED recessed into the device is useful for providing visual indication that it is sensing light and the device is also well-suited for operating in a variety of temperatures from -30°C to +70°C. The device is very popular in a variety of applications such as optical gaming boards, cameras, medical electronic equipment, staplers, printers and scanning equipment.

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