Explanation of "Sun-Ray Lamp"
Definition: A "sun-ray lamp" is a type of lamp that uses mercury vapor to produce light that is similar to sunlight. It is often used in medical and cosmetic treatments, such as for skin conditions or to help people feel better during the winter months when there is less natural sunlight.
Usage Instructions
Medical Use: Doctors may use sun-ray lamps to help treat skin problems like psoriasis or eczema.
Cosmetic Use: Some beauty salons use sun-ray lamps for skin treatments that aim to improve skin health and appearance.
Seasonal Affective Disorder (SAD): People may use sun-ray lamps at home to help reduce symptoms of SAD, which is a type of depression that occurs during the winter when there is less sunlight.
Example Sentence
Advanced Usage
In advanced contexts, you might discuss the science behind how sun-ray lamps work, such as how they emit ultraviolet (UV) light that can promote the production of vitamin D in the body.
Word Variants
Different Meanings
The term "sun-ray" can also refer to the actual rays of sunlight that come from the sun.
Synonyms
UV lamp: A lamp that emits ultraviolet light.
Tanning lamp: A lamp designed to give a tan, often using similar technology.
Idioms and Phrasal Verbs
"Chasing the sun": This idiom means to seek out sunlight or warm weather, often used in the context of travel.
"Light up": To illuminate or make something brighter, which can be used both literally (with light) and figuratively (like making someone happy).
Summary
A "sun-ray lamp" is a special lamp that mimics sunlight and is mainly used for medical and cosmetic purposes. It can help with skin treatments and improve mood during darker months.