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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กำลังดูสินค้า 1 - 4 รายการจาก 4 รายการ / Viewing 1 - 4 of 4 products
ผลการค้นหาต่อหน้า / Results Per Page
รายละเอียดสินค้า / Description ราคา / 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. 204-2712
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.B5W-LB2101-1
Brand :Omron
THB388.18
Each
Units
55mm Transistor - - 1 - Screw Mount - - - - - - -
ใหม่ / New
RS Stock No. 212-1672
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.B5W-LB1114-1
Brand :Omron
THB731.38
Each
Units
10mm Transistor - - 1 - Screw Mount - - - - - - -
RS Stock No. 788-4928
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.EE-SY1200
Brand :Omron
THB116.255
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. 170-2820
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.EE-SY1200
Brand :Omron
THB56.791
Each (On a Reel of 2000)
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