Coherent LDS-20 Argon Laser Delivery Slit Lamp Photocoagulator System

The Coherent LDS-20 (Laser Delivery System 20) is an argon laser photocoagulator designed to deliver focused laser energy through a slit lamp biomicroscope for ophthalmic retinal and anterior segment photocoagulation procedures. The system integrates a laser delivery head mounted on a motorized height-adjustable table (visible in photos), with a foot pedal for hands-free firing control and a fiber optic delivery cable connecting the laser source to the slit lamp assembly. The label plate (clearly visible in photo 4) confirms the manufacturer as Coherent, Inc., model LDS-20, with dual voltage capability: 100/120V~ 50/60Hz at 1/2A continuous / 4A max, and 220/240V~ 50/60Hz at 1/4A continuous / 2A max. A close-up photo shows the argon laser beam path active (blue/violet emission visible at the beam splitter/prism assembly), confirming the laser source is functional at the time of photography; however, this unit is being sold as parts only and buyers should verify all safety interlocks, power output calibration, and laser emission compliance prior to any clinical or technical use. The LDS-20 is compatible with major slit lamp platforms of its era and was paired with Coherent argon laser consoles; the complete assembly as shown includes the motorized table, delivery head, foot pedal, and interconnect cabling.

Product Specifications