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The prism fusion range ( PFR) or fusional vergence amplitude is a clinical eye test performed by orthoptists, optometrists, and ophthalmologists to assess motor fusion, specifically the extent to which a patient can maintain binocular single vision ( BSV) in the presence of increasing vergence demands. Motor fusion is largely accounted to ...
SMPTE ECR 1-1978 (SDTV) In a SMPTE color bar image, the top two-thirds of the television picture contain seven vertical bars of 75% intensity. In order from left to right, the colors are white or gray, yellow, cyan, green, magenta, red, and blue. [18] The choice of white or gray depends on whether that bar's luminance is 100% or not.
Level (optical instrument) Modern automatic level in use on a construction site. A level is an optical instrument used to establish or verify points in the same horizontal plane in a process known as levelling. It is used in conjunction with a levelling staff to establish the relative height or levels (the vertical separation) of objects or marks.
The prism cover test ( PCT) is an objective measurement and the gold standard in measuring strabismus, i.e. ocular misalignment, or a deviation of the eye. [1] It is used by ophthalmologists and orthoptists in order to measure the vertical and horizontal deviation and includes both manifest and latent components. [1]
The following flags have a distinctive aspect ratio: Belgium: Aspect ratio of 13:15. El Salvador: Aspect ratio of 189:335. Monaco: Aspect ratio of 4:5. Nepal: The only national flag that is not rectangular, being made with 5 sides, and the only one that is higher than wide. Bordering aspect ratio of ~ 6:5.
Uneven bars. The uneven bars or asymmetric bars is an artistic gymnastics apparatus. It is made of a steel frame. The bars are made of fiberglass with wood coating, or less commonly wood. [1] The English abbreviation for the event in gymnastics scoring is UB or AB, and the apparatus and event are often referred to simply as "bars".
It covered his secondary passion, his pioneering work with elite athletes and data analytics. Together, he and Douglass, citing Newton’s laws and personal experience, explained in The ...
Mining. Total stations are the primary survey instrument used in mining surveying. A total station is used to record the absolute location of the tunnel walls, ceilings (backs), and floors, as the drifts of an underground mine are driven. The recorded data are then downloaded into a CAD program and compared to the designed layout of the tunnel.
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