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庫存編號 708-5017
製造零件編號TCRT5000
BrandVishay
TWD46.20
/個 (每包:5個)
單位
2.5mm Phototransistor - - 1 - Through Hole PCB - 7mm 10.2mm + 85°C - 25°C -
RS庫存編號 919-0001
製造零件編號TCRT5000
BrandVishay
TWD30.00
毎管:50 個
單位
2.5mm - - - - - - - - - - - - -
RS庫存編號 708-5348
製造零件編號CNY70
BrandVishay
TWD45.40
/個 (每包:5個)
單位
0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS庫存編號 919-0082
製造零件編號CNY70
BrandVishay
TWD31.40
毎管:80 個
單位
0.5mm Phototransistor - - 1 4 Through Hole - 7 x 7 x 6mm 6mm 7mm +85°C -40°C 7mm
RS庫存編號 165-2675
製造零件編號TCRT1000
BrandVishay
TWD16.50
個 (以毎袋:1000)
單位
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS庫存編號 708-2737
製造零件編號TCRT1000
BrandVishay
TWD42.60
個 (以毎袋:5)
單位
1mm Phototransistor - - 1 4 Through Hole - 7 x 2.5 x 4mm 4mm 7mm +85°C -40°C 2.5mm
RS庫存編號 773-0420
製造零件編號VCNL4010-GS08
BrandVishay
TWD104.00
個 (以毎袋:2)
單位
200mm Microcontroller - - 1 13 Surface Mount - 3.95 x 3.95 x 0.75mm - - +85°C -25°C -
RS庫存編號 919-1001
製造零件編號VCNL4010-GS08
BrandVishay
TWD50.90
個 (在毎卷:1800)
單位
200mm Microcontroller - - 1 13 Surface Mount - 3.95 x 3.95 x 0.75mm - - +85°C -25°C -
RS庫存編號 773-3993
製造零件編號TCND5000
BrandVishay
TWD95.00
單位
6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS庫存編號 165-7087
製造零件編號TCND5000
BrandVishay
TWD39.00
個 (在毎卷:2000)
單位
6mm Photodiode 800ns 800ns 1 4 Surface Mount - 6 x 3.7 x 3.75mm - - +85°C -40°C -
RS庫存編號 818-7521
製造零件編號TCRT1010
BrandVishay
TWD25.70
/個 (每包:10個)
單位
1mm Transistor - - 2 4 Through Hole Leaded 7 x 2.5 x 4mm 4mm 7mm +85°C -25°C 2.5mm
RS庫存編號 145-1738
製造零件編號TCRT5000L
BrandVishay
TWD24.90
毎管:50 個
單位
2.5mm Transistor - - 2 4 Through Hole Leaded 10.2 x 5.8 x 8.5mm 8.5mm 10.2mm +85°C -40°C 5.8mm
RS庫存編號 165-6261
製造零件編號TCRT1010
BrandVishay
TWD17.50
個 (以毎袋:1000)
單位
1mm Transistor - - 2 4 Through Hole Leaded 7 x 2.5 x 4mm 4mm 7mm +85°C -25°C 2.5mm
RS庫存編號 161-2050
製造零件編號VCNT2020
BrandVishay
TWD14.10
個 (在毎卷:3000)
單位
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庫存編號 818-7524
製造零件編號TCRT5000L
BrandVishay
TWD31.30
/個 (每包:10個)
單位
2.5mm Transistor - - 2 4 Through Hole Leaded 10.2 x 5.8 x 8.5mm 8.5mm 10.2mm +85°C -40°C 5.8mm
RS庫存編號 161-2156
製造零件編號VCNT2020
BrandVishay
TWD17.00
/個 (每包:10個)
單位
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