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Optical Laboratory Instruments TW-650A/TW-660A/TW-670A Chart Projector 650A/660A/670A

Optical Laboratory Instruments TW-650A/TW-660A/TW-670A Chart Projector 650A/660A/670A

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The projector is a precision optical instrument for accurate refraction. It provides 30 different charts and 35 masks, with programmable remote control, Duochrome test charts to check single and binocular vision, and polarized test charts to check binoclular vision and ocular muscle imbalance.
Specifications
Projection distance:1.5m ~ 6m
Projection magnification:30 x (at 5m)
Projection size:330mm(W) x270mm(H) (at 5m)
Chart:30 different pattern
Speed of chart conversion:One chart per 0.03s
Mask:1 open, 5 horizontal lines,8 vertical lines, 21 single letters, 1 red/green
speed of mask conversion:One mask per 0.03s
Program:2 sets programs, each program contains up to 30 steps
Light source:12V,50W Halogen Lamp
Auto-off function:After 10 minutes idle time.
Power source:AC 220V ,50Hz or 110V, 60Hz
Power consumption:80W
Dimensions:300mm(L) x 230mm(W) x 240mm(H)
Net weight:6Kg
Accessories: Remote control, Polarized metal screen, halogen lamp, polarized glasses, fuses(2), batteries(2)
Optional accessories:Floor stand, wall stand





































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