Noun:

কাচবিশেষ,

crown glass's Usage Examples:

concave lens of flint glass is commonly combined with a convex lens of crown glass to produce an achromatic doublet lens because of their compensating optical.

making flat glass include: Broad sheet method (13th century) Window crown glass technique (14th century) Blown plate method (17th century) Plate polishing.

It has a cubic structure and is used in cathode ray tubes, crown glass, and catalysts.

high dispersion, and the other is a positive (convex) element made of crown glass such as BK7, which has lower dispersion.

historical methods for making window glass included broad sheet, blown plate, crown glass, polished plate and cylinder blown sheet.

producing hand-blown window glass included broad sheet, blown plate, crown glass and polished plate.

producing hand-blown window glass included: broad sheet, blown plate, crown glass and cylinder blown sheet.

equivalent from other makers, such as the Chinese crown glass K9), a very finely made borosilicate crown glass.

A Tessar comprises four elements in three groups, one positive crown glass element at the front, one negative flint glass element at the center.

Other methods for making hand-blown glass included: broad sheet, crown glass, polished plate and cylinder blown sheet.

desired, the only choices for common lens optical material are optical crown glass and CR-39.

"Hand-blown" cylinder (also called muff glass) and crown glass were the types used in ancient stained-glass windows.

Synonyms:

milk glass; optical glass; safety glass; soft glass; glasswork; natural glass; solid; Pyrex; lead glass; crown glass; wire glass; stained glass; shatterproof glass; glassware; sheet glass; soluble glass; sodium silicate; water glass; drinking glass; laminated glass; plate glass; ground glass; opal glass;

Antonyms:

low; inferior; bottom; side; heat;