Table 4.

Merit function table.

Operand	Meaning	Target
T 1	Effective focal length	2 mm
T 2	Total length	4 mm
T 3	Paraxial image height	2.3 mm
T 4	Relative illumination	55%
T 5	Maximum center thickness of the glass	1 mm
T 6	Minimum center thickness of the glass	0.3 mm
T 7	Maximum edge thickness of the glass	1 mm
T 8	Minimum edge thickness of the glass	0.3 mm
T 9	Distortion max	15%