optical crown glass
Noun: - A type of optical glass: Optical crown glass is a specific category of glass used in lenses and other optical components. It is characterized by having both a low dispersion (meaning it separates light into its component colors less) and a low refractive index (meaning it bends light less) compared to other types of optical glass like flint glass.
This term is highly technical and is used primarily in the fields of optics, lens manufacturing, physics, and engineering. It specifies the material properties crucial for designing lens systems that minimize chromatic aberration (color fringing). - The objective lens of the telescope was made from high-quality optical crown glass. - To correct for chromatic aberration, the lens designer paired a convex element of optical crown glass with a concave element of flint glass.
- In compound lens design: Optical crown glass is often used in combination with flint glass in an to bring two wavelengths of light to a common focus, significantly reducing color distortion.
- The achromatic doublet effectively reduces aberration by bonding a crown glass element with a flint glass element.
- Crown glass (n): Often used as a shorter, more general term for optical crown glass, though historically it can also refer to a specific method of glass sheet production.
- Flint glass (n): A contrasting type of optical glass with high dispersion and a high refractive index, frequently paired with crown glass in lens systems.
- Optical glass (n): The broad category encompassing all glasses manufactured for use in optical instruments, including crown and flint types.
- Low-dispersion glass: A descriptive synonym emphasizing its key property.
- Crown glass (in optical contexts): A common shorthand in technical discussions.
- Achromatic lens (n): A lens designed to limit chromatic aberration, typically constructed using elements of crown and flint glass.
- Dispersion (n): The phenomenon where a material separates light into its constituent colors, which optical crown glass exhibits to a low degree.
- Refractive index (n): A measure of how much a material bends light, a key defining property of optical crown glass.
-
optical glass of low dispersion and low refractive index
Khám phá thêm
Các từ liên quan
Từ đồng nghĩa
