optical center


Also found in: Acronyms.

optical center

[′äp·tə·kəl ′sen·tər]
(optics)
A point on the axis of a lens so that, for any ray passing through this point, the incident part and the emergent part are parallel. Also known as pole.
References in periodicals archive ?
In the case of Artyom Vitouchkine's and my most recent absolute gravimeter [12], a cam-based instrument that will be described later, this co-placement of the center of mass and optical center must be done even more precisely.
One winter I ran a test on scope optical centers variations.
The sale of the optical centers will allow Eckerd to concentrate its efforts on its drug stores, its 409 Eckerd Express Photo labs and its Insta-Care Pharmacy Services that provides pharmaceutical care to institutions.
"The presence of optical centers at PayLess reflects the future direction of the company toward more health-related merchandise and services.
The optical centers will be operated by Cole Vision Corp., a Cleveland-based firm that runs 750 optical departments nationwide.
"The philosophy behind our optical centers at PayLess Drug Stores is based on simplicity in making eyewear decisions coupled with reasonable pricing," says Cole Vision president Brian Smith.
Launched in the early 1990s, today's Wal-Mart optical centers are staffed by 2,500 independent optometrists and by more than 13,000 Wal-Mart associates.
Rhode Island, Delaware and Oklahoma are the only states without Wal-Mart optical centers.
Staffed by 2,500 independent optometrists and more than 13,000 Wal-Mart associates, the optical centers are in about 3,000 Wal-Mart discount stores and Sam's Clubs units in 47 states across the country.
Only Rhode Island, Delaware and Oklahoma do not have WalMart optical centers.

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