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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คัดกรอง / Filters

กำลังดูสินค้า 1 - 7 รายการจาก 7 รายการ / Viewing 1 - 7 of 7 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. 778-1396
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206
THB50.138
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. 894-7124
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 7060
THB79.064
Each: (In a Pack of 5)
Units
- - 16ns 16ns - 12 Surface Mount Chip 7.2 x 2.5 x 0.9mm 0.9mm 7.2mm +85°C -40°C 2.5mm
RS Stock No. 915-4926
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206-6/7
THB38.587
Each: (In a Pack of 10)
Units
1 → 5mm Phototransistor 30µs 40µs - 6 Surface Mount - 4.2 x 3.4 x 2.1mm 2.1mm 4.2mm +100°C -40°C 3.4mm
RS Stock No. 168-5476
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206
THB17.766
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. 170-9658
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206-6/7
THB19.181
Each (On a Reel of 1000)
Units
1 → 5mm Phototransistor 30µs 40µs - 6 Surface Mount - 4.2 x 3.4 x 2.1mm 2.1mm 4.2mm +100°C -40°C 3.4mm
RS Stock No. 915-4917
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206-5/6
THB38.588
Each: (In a Pack of 10)
Units
1 → 5mm Phototransistor 30µs 40µs - 6 Surface Mount - 4.2 x 3.4 x 2.1mm 2.1mm 4.2mm +100°C -40°C 3.4mm
RS Stock No. 170-9657
หมายเลขชิ้นส่วนของผู้ผลิต / Mfr. Part No.SFH 9206-5/6
THB19.181
Each (On a Reel of 1000)
Units
1 → 5mm Phototransistor 30µs 40µs - 6 Surface Mount - 4.2 x 3.4 x 2.1mm 2.1mm 4.2mm +100°C -40°C 3.4mm