Dynamic focusing lenses are widely used in 3-Axis dynamic scanning systems (Post-objective scanning systems). Dynamic focusing lenses play a major role in today's leading-edge laser applications. It differs from the typical scan lenses which are used in pre-objective scanning systems. In a post-objective scanning system, the galvo mirrors are placed after the dynamic  focusing lenses. The dynamic lenses system are made with a movable smaller negative focusing lens and two larger positive focusing lenses. We can also provide all customers the dynamic lenses systems. The dynamic lenses system can achieve smaller focusing spot sizes and uniform spot sizes from the center to the edge of scanning field compared to the traditional pre-objective scanning systems.

P/N	Substrate	Surface Type	Diameter	Focal Length	Thickness
LZ-12.5-19.8-BICC	ZnSe	Bi-CC	12.5mm	19.8mm	1.75mmCT
LZ-0515-PLCC	ZnSe	PL/CC	12.7mm	1.50"	2.0mm
LZ-0520-PLCC	ZnSe	PL/CC	12.7mm	2.00"	2.0mm
LZ-15-38.1-PLCC	ZnSe	PL/CC	15mm	1.50"	2.0mm
LZ-15-38.1-BICC	ZnSe	Bi-CC	15mm	1.50"	2.0mm
LZ-18-50.8-BICC	ZnSe	Bi-CC	18mm	2.00"	2.0mm
LZ-18-63.5-BICC	ZnSe	Bi-CC	18mm	2.50"	2.0mm
LZ-19-72-NM	ZnSe	Neg Meniscus	19mm	2.848"	2.54mm
LZ-19-80.8-BICC	ZnSe	Bi-CC	19mm	3.183"	2.0mm
LMZ-1538-ET3.0	ZnSe	Positive Meniscus	38.1mm	3.75"	3.0mm
LMZ-1550-ET3.0	ZnSe	Positive Meniscus	38.1mm	5.00"	3.0mm
LMZ-1575-ET5.0	ZnSe	Positive Meniscus	38.1mm	7.50"	5.0mm
LMZ-50-139-ET3.0	ZnSe	Positive Meniscus	50.0mm	138.57mm	3.0mm
LMZ-50.8-298-ET5.0	ZnSe	Positive Meniscus	50.8mm	11.738"	5.0mm
LMZ-50.8-317.5-ET5.0	ZnSe	Positive Meniscus	50.8mm	12.50"	5.0mm
LMZ-2510-ET5.0	ZnSe	Positive Meniscus	63.5mm	10.00"	5.0mm
LMZ-2512-ET5.0	ZnSe	Positive Meniscus	63.5mm	12.00"	5.0mm
LMZ-2515-ET5.0	ZnSe	Positive Meniscus	63.5mm	15.00"	5.0mm
LMZ-63.95-241.6-ET3.5	ZnSe	Positive Meniscus	63.95mm	9.512"	3.5mm

★The above are about standard products, they can also be custom made