Reflective Optical Sensors

Image sensors are devices that convert light waves or electromagnetic radiation that pass through or reflect off the object into a piece of information that constitutes an image. Image sensors are commonly used in photography and videography industries, for producing digital cameras, medical imaging equipment, night vision cameras, thermal imaging devices, radars, sonars etc. Image sensors are built from thousands of small light-sensitive cells that capture the light, recognise the colour and convert it into a digital signal. There are two main types of sensors on the market and they are CCD sensors and CMOS sensors.

CCD

In this sensor every light-sensitive cell is an analogue device. When light strikes the chip it is held as a small electrical charge in each photo cell. The charges in the line of pixels nearest to the (one or more) output amplifiers are amplified and output, then each line of pixels shifts its charges one line closer to the amplifier, filling the empty line closest to the amplifiers. This process is then repeated until all the lines of pixels have had their charge amplified and output.

CMOS

CMOS sensors are different in build from CCD sensors. CMOS image sensor has an amplifier for each pixel compared to the few amplifiers of a CCD. This results in less area for the capture of photons than a CCD, but this problem has been overcome by using micro lenses in front of each photodiode, which focus light into the photodiode that would have otherwise hit the amplifier and not be detected. CMOS sensors can potentially be implemented with fewer components, use less power, and/or provide faster readout than CCD sensors. They are also less vulnerable to static electricity discharges.


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Beskrivning Pris Peak Sensor Distance Output Device Typical Rise Time Typical Fall Time Number of Channels Number of Pins Mounting Type Package Type Dimensions Height Length Maximum Operating Temperature Minimum Operating Temperature Output Signal Type
RS-artikelnummer 124-6800
Tillv. art.nrRPR-220
VarumärkeROHM
22,885 kr
Each (In a Pack of 10)
Enheter
6mm Phototransistor 10µs 10µs 1 4 Through Hole Radial 6.4 x 4.9 x 6.5mm 6.5mm 6.4mm +85°C -25°C -
RS-artikelnummer 170-0732
Tillv. art.nrOPB720B-06Z
VarumärkeOptek
183,314 kr
Each (In a Bag of 25)
Enheter
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C -
RS-artikelnummer 414-197
Tillv. art.nrOPB720B-06Z
VarumärkeOptek
183,31 kr
Each
Enheter
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C -
RS-artikelnummer 761-3984
Tillv. art.nrQRE1113GR
Varumärkeonsemi
14,866 kr
Each (In a Pack of 5)
Enheter
- Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm +85°C -40°C -
RS-artikelnummer 124-1360
Tillv. art.nrQRE1113GR
Varumärkeonsemi
5,016 kr
Each (On a Reel of 1000)
Enheter
- Phototransistor 20 μ 20µs 1 4 Surface Mount SMD 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm 85°C -40°C -
RS-artikelnummer 826-4640
Tillv. art.nrGP1A57HRJ00F
VarumärkeSharp
47,284 kr
Each (In a Pack of 5)
Enheter
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 18.6 x 15.2 x 5mm 5mm 18.6mm +85°C -25°C -
RS-artikelnummer 170-2453
Tillv. art.nrGP2S60
VarumärkeSharp
2,36 kr
Each (On a Reel of 2000)
Enheter
0.7mm Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.2 x 1.7 x 1.1mm 1.1mm 3.2mm +85°C -25°C -
RS-artikelnummer 178-5030
Tillv. art.nrGP1A57HRJ00F
VarumärkeSharp
26,637 kr
Each (In a Bag of 100)
Enheter
- Transistor 0.5µs 0.5µs 1 5 Through Hole OPIC 18.6 x 15.2 x 5mm 5mm 18.6mm +85°C -25°C -
RS-artikelnummer 315-450
Tillv. art.nrGP2Y0A02YK0F
VarumärkeSharp
181,50 kr
Each
Enheter
1500mm - - - - 3 Screw Mount - 44.5 x 18.9 x 21.6mm 21.6mm 44.5mm +60°C -10°C -
RS-artikelnummer 170-2386
Tillv. art.nrGP2Y0A02YK0F
VarumärkeSharp
136,964 kr
Each (In a Tray of 50)
Enheter
1500mm - - - - 3 Screw Mount - 44.5 x 18.9 x 21.6mm 21.6mm 44.5mm +60°C -10°C -
RS-artikelnummer 667-5041
Tillv. art.nrGP2S60
VarumärkeSharp
2,556 kr
Each (In a Pack of 5)
Enheter
0.7mm Phototransistor 20µs 20µs 1 4 Surface Mount SMD 3.2 x 1.7 x 1.1mm 1.1mm 3.2mm +85°C -25°C -
RS-artikelnummer 919-0082
Tillv. art.nrCNY70
VarumärkeVishay
10,234 kr
Each (In a Tube of 80)
Enheter
0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C -
RS-artikelnummer 666-6564
Tillv. art.nrGP2Y0A21YK0F
VarumärkeSharp
161,67 kr
Each
Enheter
800mm - - - - - - - - - - +60°C -10°C -
RS-artikelnummer 708-5348
Tillv. art.nrCNY70
VarumärkeVishay
15,10 kr
Each (In a Pack of 5)
Enheter
0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C -
RS-artikelnummer 178-7437
Tillv. art.nrGP2Y0A21YK0F
VarumärkeSharp
81,17 kr
Each (In a Box of 1000)
Enheter
800mm - - - - - - - - - - +60°C -10°C -
RS-artikelnummer 170-0730
Tillv. art.nrOPB720A-06Z
VarumärkeOptek
179,296 kr
Each (In a Bag of 25)
Enheter
152mm Open Collector - - 1 3 Screw Mount - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +50°C 0°C -
RS-artikelnummer 708-5017
Tillv. art.nrTCRT5000
VarumärkeVishay
25,124 kr
Each (In a Pack of 5)
Enheter
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS-artikelnummer 414-175
Tillv. art.nrOPB720A-06Z
VarumärkeOptek
182,99 kr
Each
Enheter
152mm Open Collector - - 1 3 Screw Mount - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +50°C 0°C -
RS-artikelnummer 919-0001
Tillv. art.nrTCRT5000
VarumärkeVishay
16,902 kr
Each (In a Tube of 50)
Enheter
2.5mm - - - - - - - - - - - - -
RS-artikelnummer 414-181
Tillv. art.nrOPB720B-30VZ
VarumärkeOptek
286,22 kr
Each
Enheter
762mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C -