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Vertex distance is the distance between the back surface of a corrective lens, i.e. glasses (spectacles) or contact lenses, and the front of the cornea. Increasing or decreasing the vertex distance changes the optical properties of the system, by moving the focal point forward or backward, effectively changing the power of the lens relative to ...
In glasses with powers beyond ±4.00D, the vertex distance can affect the effective power of the glasses. [4] A shorter vertex distance can expand the field of view, but if the vertex distance is too small, the eyelashes will come into contact with the back of the lens, smudging the lens and causing annoyance for the wearer.
There are two types of FHA construction loans: an FHA construction-to-permanent loan and a FHA 203(k) loan. FHA construction loans can be rolled into an FHA permanent mortgage.
A construction-to-permanent loan — also known as a one-time, single-close or construction-perm loan — is a type of mortgage for those building a home. It funds the purchase of land and the ...
The Construction Specifications Institute (CSI) is a United States national association of more than 6,000 construction industry professionals who are experts in building construction and the materials used therein. The institute is dedicated to improving the communication of construction information through a diversified membership base of ...
The NEC contracts now form a suite of contracts, with NEC being the brand name for the "family" of contracts. [16] When it was first launched in 1993, it was simply the "New Engineering Contract". This specific contract has been renamed the "Engineering and Construction Contract" which is the main contract used for any construction based project.
The rest of the loan's balance (called "holdback") [1] is given to the builder upon the achievement of certain milestones related to the sale or lease of its residential space. [2] For example, a bank may advance 80% of the balance of a property loan to the builder, and release the remaining 20% upon the successful construction lease or sale of ...
In Electrical Engineering , a static synchronous compensator (STATCOM) is a shunt-connected, reactive compensation device used on transmission networks. It uses power electronics to form a voltage-source converter that can act as either a source or sink of reactive AC power to an electricity network.