optical glass
1
6.0
- noun
- /ˈɑptɪkəl ɡlæs/
- Specialized
:
vidrio óptico
- Remove the infrared filter and replace it with clear optical glass.
- improve optical glass
What it then hits is another piece of optical glass, which is a combiner.
- What it then hits is another piece of optical glass, which is a combiner.
Examples
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What it then hits is another piece of optical glass, which is a combiner.
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Only Galileo, with a few grams of optical glass in a telescope, had a greater impact on history.
Academic text (2009) -
Eighty percent of NIF's large-scale construction is already completed, and most of the optical glass required for the 192 10-kJ pulsed lasers is ready for installation.
Academic text (2006) -
The engineer designed a new lens using optical glass to improve the clarity of the image.
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When manufacturing telescopes, it is crucial to use high-quality optical glass for accurate viewing.
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Many cameras are equipped with optical glass lenses to enhance the quality of photographs.
Synonyms
2
5.3
A clear glass that resists heat and chemicals used for lab tools and scientific instruments
1
6.8
A clear, hard material made mostly from pure sand that resists high heat and chemicals
A type of glass that bends light strongly and separates colors in lenses and prisms
A heavy glass that bends light strongly used for lenses and prisms
Clear glass used in camera lenses that bends light less and keeps colours from separating
A clear glass used in lenses that bends light only a little
How Dispersive
Surface Forms
Morphology
The meaning is directly compositional: 'optical' (relating to light/vision or optical devices) combined with 'glass' (the material) yields 'glass used for optical purposes' such as lenses or components. A B1 learner who knows both words can readily infer this basic sense, even if they might not grasp technical details like refractive index.
Etymology
Optical glass comes from the idea of very clear glass made for things that work with light, because optical means 'about sight or light'. Craftsmen ground and tested this glass so it would bend light in a known way to make good lenses, so optical glass means 'clear glass used to make lenses and other parts that control light'.