sun-ray lamp
Học thuậtThân thiện
Definition
Noun: A sun-ray lamp is a type of mercury-vapor lamp designed to emit ultraviolet radiation, primarily used for therapeutic or cosmetic purposes. It simulates some effects of natural sunlight.
Usage
The term "sun-ray lamp" is a compound noun. It refers specifically to the device itself. It is used in contexts related to medical therapy, dermatology, or personal care.
Examples
- The dermatologist recommended brief sessions under a sun-ray lamp to treat the skin condition.
- Some tanning beds use a type of sun-ray lamp.
- For vitamin D synthesis in controlled settings, a sun-ray lamp may be employed.
Advanced Usage
- The term is technical and specific. In everyday conversation, people might use broader terms like "UV lamp" or "tanning lamp," though these are not exact synonyms.
- It is often found in instructional manuals for medical or cosmetic equipment.
Variants and Related Words
- Sunlamp (noun): A common shorter variant with the same meaning.
- Ultraviolet lamp (noun): A more general term for lamps emitting UV light, which may include but is not limited to sun-ray lamps.
- Phototherapy lamp (noun): A lamp used for light therapy, which can encompass sun-ray lamps.
Synonyms
- Artificial sunlight lamp (noun)
- UV therapy lamp (noun)
Notes on Meaning
- The core meaning combines the source of radiation ("sun-ray," implying ultraviolet light similar to sunlight) and the device producing it ("lamp").
- Its use is almost exclusively for applications where controlled exposure to ultraviolet light is intended, distinguishing it from general-purpose lighting.
Noun
- a mercury-vapor lamp used in medical or cosmetic treatments