Infrared Sources are optoelectronic devices that emit infrared light

Infrared heaters use a reflective shield to direct radiant heat onto a heated surface

Liquid crystal display (LCD) modules are used at the component level in place of less efficient displays such as cathode ray tubes (CRTs). These modules do not include a housing and must be incorporated into a larger instrument or system.

Carbon dioxide (CO₂) lasers use the energy-state transitions between vibrational and rotational states of CO₂ molecules to emit at long IR, about 10 µm, wavelengths. These lasers can maintain continuous and very high levels of power and are typically used in cutting, welding, etching, and marking applications.

Diode lasers use light-emitting diodes to produce stimulated emissions in the form of coherent light output. They are also known as laser diodes.

Fiber optic transmitters are devices that include an LED or laser source, and signal conditioning electronics, to inject a signal into fiber.

Fiber optic transceivers include both a transmitter and a receiver in the same component.

Photoelectric sensors use emitters and receivers to detect the presence, absence, or distance of target objects

Heat lamps are also known as infrared emitters, infrared bulbs, infrared tubes, or infrared lamps. Heat lamps differ from illuminating lamps in their low filament temperature, resulting in much less light and more infrared radiation

Camera filters provide a range of optical filtering effects in scientific, research, and industrial applications.

Optical triangulation position sensors use reflected waves to pinpoint position and displacement.

Lamps are light sources that emit incoherent light for illumination. There are many different types of products. Examples include fluorescent lamps, halogen lamps, heat lamps, incandescent lamps, LED lamps, projection lamps, spectral lamps, and stage lamps. Specialized and proprietary lamps are also available.

Phototransistors are solid-state light detectors with internal gain that are used to provide analog or digital signals. They detect visible, ultraviolet and near-infrared light from a variety of sources and are more sensitive than photodiodes. This category includes photodarlingtons. 

Radiant flat panel heaters are used to heat objects via radiant heat transfer.

Network and communication chips are semiconductor integrated circuits (IC) used in telecommunication devices and systems.