flash bulb
Học thuậtThân thiện
Definition
- Noun:
- A lamp for providing momentary light to take a photograph: A "flash bulb" is a small, sealed glass bulb containing material that, when electrically ignited, produces a very brief and intense burst of light. It is used in photography to illuminate a scene.
Usage
- The primary use of a flash bulb is to provide a single, powerful flash of light to properly expose a photograph, especially in low-light conditions.
- It is typically used once and then must be replaced, distinguishing it from reusable electronic flash units.
Examples
- Noun:
- The photographer inserted a new flash bulb into the vintage camera.
- The sudden bright light from the flash bulb startled the subject.
Advanced Usage
- Historical Context: Flash bulbs were widely used in mid-20th-century photography before the common adoption of electronic flashes. They are now considered largely obsolete but are still used in some specialized or artistic photography.
- "Flash bulb memory": This is a related psychological term describing a vivid, detailed memory of a surprising and consequential event, metaphorically linking the clarity of the memory to the bright, illuminating flash of the bulb. (Note: This is a compound term listed here due to its conceptual connection, but the core definition remains the photographic device).
Variants and Related Words
- Flashbulb (noun): A common alternative spelling, written as one word.
- Flash (noun/verb): The general term for a burst of light. A "flash" can refer to the light itself or to a modern electronic flash unit.
- Photoflash bulb (noun): A more descriptive synonym.
- Flashgun (noun): A device that holds and triggers a flash bulb or electronic flash.
Synonyms
- Photoflash lamp
- Flash lamp
Related Phrases
- To pop a flash bulb: An informal phrase meaning to fire or use a flash bulb.
- The paparazzi popped flash bulbs as the celebrity exited the car.
Noun
- a lamp for providing momentary light to take a photograph