photosensor

The photosensor is placed on the toe to record pulse changes.

Method and system for increasing the effective dynamic range of a photosensor.

By using a cylinder to carry the photosensor, automatic processing was enabled.

Early systems, such as the Votronic, introduced in 1965, had a single photosensor per column of marks on the ballot.

In this case a photosensor in the light pen was connected to the trigger line of the port.

The photosensor generates a trigger signal when detecting the trigger mark.

Wavelength measurement is based on a single photosensor consisting of two stacked silicon photodiodes.

These are devices with a photosensor that detects the electron beam and sends a signal to the attached computer.

In doing this, they limit the diameter of the image projected to slightly more than the diagonal measurement of the photosensor.

The illumination level of the LED bars and tower is controlled by a roof mounted photosensor.

The most common form of sensor is the light-beam sensor, using a light-emitting diode and a photosensor.

MD photosensor (equivalent to the shape of Mini Disk)

In some types, particularly optical beam types, the light emitted by the light source passes through the air being tested and reaches the photosensor.

From one to four channels can be implemented, each channel having a photosensor that scans one of at most two signal tracks on a slotted disk.

This photosensor is particularly affected by blue light, and when it observes light the pineal gland stops the secretion of melatonin.

Another difference is that more of the photons entering the camera will be detected by the Foveon X3 photosensor than is possible with a mosaic sensor.

In cinematography and photography, pre-flashing is the exposure of the film or other photosensor to uniform light prior to exposing it to the scene to be imaged.

A photosensor allows the OASLM to sense the brightness of each pixel and replicate the image using liquid crystals.

At the turn of the century it was discovered that human eyes contain a non-imaging photosensor that is the primary regulator of the human circadian rhythm.

The earliest, and still the cheapest, barcode scanners are built from a fixed light and a single photosensor that is manually "scrubbed" across the barcode.

While analogue systems in the form of a photosensor, rotating aperture and a light source have been used in the past, most systems in use today are digital.

A mockup shows a laptop's PCMCIA card with a photosensor surrounded by four infrared light-emitting diodes.

A digital scan back takes a similar approach to the second type of photosensor, but instead of using one matrix for each component, it uses one array per component.

Either type of photosensor may be used for light measurement, as in camera light meters, or to respond to light levels, as in switching on street lighting after dark.

The achieved sharpness is due to the lack of a color filter array, thus avoiding the process of demosaicing by capturing the true luminance value of each photosensor.