IR Emitter

An infrared emitter, or IR emitter, is a source of light energy in the infrared spectrum. It is a light emitting diode (LED) that is used in order to transmit infrared signals from a remote control. In general, the more they are in quantity and the better the emitters are, the stronger and wider the resulting signal is. A remote with strong emitters can often be used without directly pointing at the desired device. Infrared emitters are also partly responsible for limits on the range of frequencies that can be controlled. An IR emitter generates infrared light that transmits information and commands from one device to another. Typically one device receives the signal then passes the infrared (IR) signal through the emitter to another device.

Luckylight offers many of the most common types categorized by wavelength, angle of half intensity, intensity, packaging type and forward (drive) current. The most common sizes for wavelength are 875nm, 850nm, 940nm.

A. Infrared LED with wavelength of 940nm: suitable to be used in remote controller, such as remote controllers for household appliances.

B. 850nm: suitable to be used in video cameras that are applied in digital photography, monitoring system, door phone, theft-proof alarm and so on.

C. 870nm: suitable to be used in IrDA compatible data transmission, IR illumination for CCTV, miniature light barriers, Photo interrupter, optical switches, shaft encoders and more.

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Photodiode

A photodiode is a semiconductor device that converts light into an electrical current. The current is generated when photons are absorbed in the photodiode.

The photodiodes are similar to regular semiconductor diodes except that they may be either exposed or packaged with a window or optical fiber connection to allow light to reach the sensitive part of the device. Many diodes designed for use specifically as a photodiode use a PIN junction rather than a p–n junction, to increase the speed of response.

Photodiodes are used in a variety of applications including CD/DVD drives, Optical communications, Smoke detectors, Medical equipment, burglar alarms and general light sensing.

Luckylight offers an extensive range of high quality and reliable photodiodes. They are available in a variety of shapes and sizes, including industry standard T1 and T1 3/4, and lens side look, as well as surface mount (SMD) type. Most widely used Silicon photodiodes are sensitive from 400 to 1100nm.

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Phototransistor

Phototransistors are either tri-terminal (emitter, base and collector) or bi-terminal (emitter and collector) semiconductor devices which have a light-sensitive base region. Phototransistors and photodiodes can both be used for sensing light, but the phototransistor is more sensitive in view of the gain provided by the transistor. This makes phototransistors more suitable in a number of applications.

Phototransistors provide lower capacitance, high-speed response and low noise and low dark current along with excellent sensitivity. They are ideal for high-speed data transfer, light barriers, alarm systems, linear light measurement and more.

Luckylight offers an extensive range of high quality and reliable phototransistors. They are available in a variety of shapes and sizes, including industry standard T1 and T1 3/4, and lens side look, as well as surface mount (SMD) type. Most widely used Silicon Phototransistors are sensitive from 400 to 1100nm.

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Infrared Receiver Module

An infrared receiver, or IR receiver, is hardware that sends information from an infrared remote control to another device by receiving and decoding signals. In general, the receiver outputs a code to uniquely identify the infrared signal that it receives. This code is then used in order to convert signals from the remote control into a format that can be understood by the other device. It is the part of a device that receives infrared commands from a remote control.

Luckylight offers many of the most common types categorized by supply voltage, carrier frequency, transmission distance, packaging type and supply current. The most common sizes for carrier frequency are 36kHz, 38kHz and 40kHz. Luckylight also offers infrared receivers with carrier frequency up to 56kHz. The transmission distance can range from 8m to 30m.

Infrared receivers are used in a variety of applications including Air Conditioners, Fans, Heaters, TVs, DVDs, Set-top boxes, Computers and peripherals, Industrial automation, Remote control toys, Communications Equipment, Photographic Equipment, business machines, Automotive electronics, lighting and other fields.

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