Vocational Dispensing Flashcards
(44 cards)
What features are needed for optical sportswear?
Wide FOV
No distortions/aberrations
Coatings to reduce reflections, smudges and water
Tints and filters
Impact resistance
Practicality for the sport
Why are CLs a good option for sports?
Wide FOV
No aberrations or distortions
Reduced mini/magnification
Can have UV protection
Better depth perception
No exposure to rain or dirt
Reduced damage and loss risk
What British Standard must racquet sport goggles meet?
BS EN 7930-1:1998
What is the housing of racquet sport goggles made from?
Nylon with silicone bumpers or side shields
What lenses are usually used for racquet sport goggles?
Polycarb
Trivex
What lenses are usually used for snooker specs?
SV
Non-aspheric
MAR
No polycarb
What lenses are usually used for shooting specs?
Polycarb
Trivex
Poss with occluder or adjustable aperture
What tints are used in shooting specs?
Red/brown (woodland)
Yellow (target)
Orange (archery)
What lenses are usually used for swimming goggles?
Polycarb
Trivex
What is the housing of swimming goggles usually made from?
Silicone
What is the housing of diving goggles usually made from?
Polycarb with silicone skirt
What lenses are usually used for diving goggles?
Tempered glass with rx insert or rx glass bonded
What other features are available in diving goggles?
Bif for reading gauge
Tints (yellow or magenta)
What lenses are usually used for cycling specs?
8 base curve polycarb
Rx on insert or ground into back surface
What measurements are needed for cycling specs?
Mono PD
Dihedral angle
What lenses are usually used for sailing specs?
Polycarb or trivex polarised with UV protection
Mirror tint
What feature do specs for sailing, surfing and kayaking need?
Ventilation to allow water drainage in case of submersion
What British Standard should skiing goggles comply with?
BS EN 12312
What is the housing of skiing goggles usually made from?
Nylon
Rubber
Propionate
What lenses are usually used for skiing goggles?
Polycarb with UV protection and mirror coat and orange or brown tint (cat 4 - 15% LTF)
What features do rugby goggles have?
Anti-fogging holes
Smooth, rounded edges
What lenses are usually used for rugby goggles?
Polycarb
Which bones do rugby goggles sit on?
Supraorbital
Zygomatic
What lenses are usually used for cricket specs?
Polycarb
Trivex
Rose/grey/orange/brown tint
Polarised and mirror tint