Definition of Trifocal. Meaning of Trifocal. Synonyms of Trifocal

- Trifocals are eyegl****es with lenses that have three regions which correct for distance, intermediate (arm's length), and near vision. John Isaac Hawkins...
- In computer vision, the trifocal tensor (also tritensor) is a 3×3×3 array of numbers (i.e., a tensor) that incorporates all projective geometric relationships...
- as a generalized ellipse. Generalized conics with three foci are called trifocal ellipses. This can be further generalized to curves which are obtained...
- avoid the discontinuities (image-jumps) sometimes found with bifocal and trifocal lenses Some people find them more cosmetically attractive. Because bifocals...
- that provide limited visual accommodation. Multifocal IOLs can also be trifocal IOLs or extended depth of focus (EDOF) lenses. As of 2021, nearly 28 million...
- bifocals may have been such a case. John Isaac Hawkins, the inventor of trifocal lenses, coined the term bifocals in 1824 and credited Benjamin Franklin...
- remove the gl****es, which would be required with single vision correction. Trifocal lenses are similar to bifocals, except that the two focal areas are separated...
- refractive index. For people with presbyopia and hyperopia, bifocal and trifocal gl****es provide two or three different refractive indices, respectively...
- November 1951). "Experiment in Which Fifty Presbyopes Were Provided with Trifocal Gl****es". Archives of Ophthalmology. 46 (5): 542–548. doi:10.1001/archopht...
- Lorgnette Opera Monocle Pince-nez Pinhole Rimless Scissors Shooting Smart Trifocals Windsor X-ray Sungl****es Aviator Mirrored Solar viewer Shutter Wayfarer...