The CL-300 serves dispensing counters, optical practices, optometry clinics, eye departments and optical workshops. Dispensing opticians, optometrists, and optical assistants use it to read a patient's current spectacles, match new pairs to the prescription before collection, and measure hard or soft contact lenses. In workshops, it centres and marks lenses before glazing.
Centring and marking carry the design. The operator slides the lens across the support and watches the target close on the circle, prompted by ALIGNMENT OK and, if set, a buzzer. When MARKING OK shows at 0 Δ, the reading is already in memory, so the dot goes down at the measured point. On anti-stain or anti-fog coatings, the white ink stays clean, making the centre easy to find when the lens is edged and the frame is fitted.
UV transmittance gives the dispensing conversation a number. Measured from 0 to 100% under a 365 nm LED, it shows a patient how much ultraviolet passes through their spectacle or sunglass lenses. The guided mode serves progressive wearers by leading the operator to the near point for the ADD value, and the lens support accommodates high-curve lenses. Hard and soft contact lenses sit on the supplied support and ring, so the same instrument serves contact lens wearers.
The built-in thermal printer prints results for the patient record, and fresh paper drops into the receptacle. Topcon pairs it with the CV-5000 computerised vision tester and with filing systems, over RS-232C or, on the CL-300PDL, LAN. The CL-300PDL also takes PD from 50 to 90 mm at the same bench.