The 60077 Condensing Lens Assembly is for use with the 60000 Q Series lamp housing. The Q Housing is known for its flexibility and ease of configuration. This Condensing Lens Assembly can be purchased separately when creating an IR light source system or reconfiguring an existing light source system. The Q housing requires the use of at least one condenser assembly for both safety and efficient light collection. Up to four condensers may be installed, which can provide simultaneous illumination of multiple samples. The total number of condensers which may be used depends on the lamp or IR emitter type and presence of the optional 60005 rear reflector. The 60077 uses a standard Oriel 1.5-inch series flange, making it compatible with a wide range of accessories and instruments.