उत्सर्जक

Emitter may refer to:

Devices which emit charged particles:

• Cathode, or positive electrode, in a vacuum tube or transistor
• Anode, or negative electrode, in certain applications based on the emission of ions from a solid surface

Devices which emit electromagnetic radiation:

• Lambertian emitter, a light source whose radiance varies with angle according to Lambert's cosine law
• An infrared LED used to emulate a remote control

Other uses:

• Emitter, a device used in drip irrigation