• द्वि फोकसी लेन्स • द्विफोकसी लेन्स | |
bifocal: द्वि फोकसी | |
lens: शीशा कांच लेंस | |
bifocal lens मीनिंग इन हिंदी
bifocal lens उदाहरण वाक्य
उदाहरण वाक्य
अधिक: आगे- Bifocal lenses advanced little in the first half of the 19th century.
- For example, the first bifocal lenses came from Rodenstock as did UV-absorbing lenses.
- Bifocal lenses cost between $ 200 and $ 250.
- During that time he invented the cemented bifocal lens.
- Bifocals lenses are about $ 110, Azar said.
- Bifocal lenses are also available for this application.
- The idea of the progressive lens came to him as he tried on his father s bifocal lenses.
- A progressive lens tries to minimize the visible boundary between different regions, unlike a bifocal lens for example.
- Stage-by-stage, he experiences the vision produced by single-vision and bifocal lenses, and then that of standard progressive lenses, and ultimately Varilux lenses.
- He also used a close-up focusing filter on the bottom half of the camera lens, which, like a bifocal lens, is divided into two.