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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Description Price 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 Width
RS Stock No. 740-5058
Mfr. Part No.NJL5901AR-1-TE1
MYR2.72
Each (In a Pack of 5)
units
- Phototransistor 30µs 30µs 1 4 Surface Mount COBP - 0.6mm 1.6mm +85°C -30°C 1.3mm
RS Stock No. 666-6570
Mfr. Part No.GP2Y0D21YK0F
BrandSharp
MYR39.71
Each
units
- - - - - - - - - - - +60°C -10°C -
RS Stock No. 455-0975
Mfr. Part No.SG2BC, BCD
BrandKodenshi
MYR16.74
Each (In a Pack of 5)
units
- Phototransistor 30µs 30µs - 4 - - - - - +90°C -20°C -
RS Stock No. 168-5476
Mfr. Part No.SFH 9206
MYR2.345
Each (On a Reel of 1000)
units
5mm Phototransistor 30µs 40µs 1 6 Surface Mount SMD 6.2 x 2.1 x 4.2mm 4.2mm 6.2mm +100°C -40°C 2.1mm
RS Stock No. 778-1396
Mfr. Part No.SFH 9206
MYR6.038
Each (In a Pack of 5)
units
5mm Phototransistor 30µs 40µs 1 6 Surface Mount SMD 6.2 x 2.1 x 4.2mm 4.2mm 6.2mm +100°C -40°C 2.1mm
RS Stock No. 178-2947
Mfr. Part No.HSDL-9100-021
BrandBroadcom
MYR4.847
Each (On a Reel of 2500)
units
5mm Photodiode 50ns 50ns - 4 Surface Mount SMD 6.9 x 2.78 x 2.7mm 2.7mm 6.9mm +85°C -40°C 2.75mm
RS Stock No. 146-0777
Mfr. Part No.GP2A25J0000F
BrandSharp
MYR27.46
Each (In a Pack of 2)
units
9 (Detection) mm, 27 (Non-Detection) mm Photointerrupter - - - - Surface Mount - 39.8 x 9 x 8.65mm 8.65mm 39.8mm +60°C -10°C 9mm
RS Stock No. 862-9400
Mfr. Part No.QRE1113
MYR4.904
Each (In a Pack of 10)
units
- Phototransistor 20µs 20µs 1 4 Through Hole Miniature 3.6 x 2.9 x 1.7mm 1.7mm 3.6mm +85°C -40°C 2.9mm
RS Stock No. 146-0782
Mfr. Part No.GP2A200LCS0F
BrandSharp
MYR27.12
Each (In a Pack of 2)
units
22 (Detection) mm, 90 (Non-Detection) mm Photointerrupter - - - - Surface Mount - 39.8 x 9 x 8.65mm 8.65mm 39.8mm +70°C -10°C 9mm
RS Stock No. 788-4928
Mfr. Part No.EE-SY1200
BrandOmron
MYR14.005
Each (In a Pack of 2)
units
4mm Phototransistor 30µs 30µs 10 4 Surface Mount SMD 3.2 x 1.9 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.9mm
RS Stock No. 146-0729
Mfr. Part No.GP2A25DJ000F
BrandSharp
MYR30.539
Each (In a Bag of 100)
units
9 (Detection) mm, 27 (Non-Detection) mm Photointerrupter - - - - Surface Mount - 39.8 x 9 x 8.65mm 8.65mm 39.8mm +60°C -10°C 9mm
RS Stock No. 455-0947
Mfr. Part No.OPB705
BrandOptek
MYR12.71
Each
units
3.8mm Phototransistor - - 1 4 - - 17.78 x 5.08 x 22.86mm 22.86mm 17.78mm - - 5.08mm
RS Stock No. 146-0735
Mfr. Part No.GP2A210LCSJF
BrandSharp
MYR27.231
Each (In a Bag of 100)
units
15 (Detection) mm, 70 (Non-Detection) mm Photointerrupter - - - - Surface Mount - 39.8 x 9 x 8.65mm 8.65mm 39.8mm +70°C -10°C 9mm
RS Stock No. 414-181
Mfr. Part No.OPB720B-30VZ
BrandOptek
MYR118.73
Each
units
762mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS Stock No. 124-1360
Mfr. Part No.QRE1113GR
MYR1.829
Each (On a Reel of 1000)
units
- 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 2.9mm
RS Stock No. 414-197
Mfr. Part No.OPB720B-06Z
BrandOptek
MYR68.83
Each
units
152mm Open Collector - - 1 3 - - 17.15 x 8.38 x 27.94mm 27.94mm 17.15mm +70°C 0°C 8.38mm
RS Stock No. 146-0747
Mfr. Part No.GP2S60B
BrandSharp
MYR1.646
Each (On a Reel of 2000)
units
0.5mm Phototransistor 20µs 20µs - - Surface Mount SMD 3.2 x 1.7 x 1.1mm 1.1mm 3.2mm +85°C -25°C 1.7mm
RS Stock No. 161-2050
Mfr. Part No.VCNT2020
BrandVishay
MYR2.09
Each (On a Reel of 3000)
units
2.5mm Phototransistor 10µs 15µs - 4 Surface Mount SMD 2.5 x 2 x 0.8mm 0.8mm 2.5mm 85°C -25°C 2mm
RS Stock No. 146-0728
Mfr. Part No.GP2A25NJJ00F
BrandSharp
MYR28.176
Each (In a Bag of 100)
units
9 (Detection) mm, 27 (Non-Detection) mm Photointerrupter - - - - Surface Mount - 39.8 x 9 x 8.65mm 8.65mm 39.8mm +60°C -10°C 9mm
RS Stock No. 146-0785
Mfr. Part No.GP2Y1012AU0F
BrandSharp
MYR67.22
Each
units
- - - - - - Surface Mount - 46 x 34 x 17.6mm 17.6mm 46mm +65°C -10°C 34mm