LaCroix Optical Co. - Manufacturer of Precision Optics "When my father started LaCroix Optical Co. over 60 years ago, he had a very clear vision of what this company would guarantee every customer . . . Custom optics made......LaCroix Optical Co. - Manufacturer of Precision Optics "When my father started LaCroix Optical Co. over 60 years ago, he had a very clear vision of what this company would guarantee every customer . . . Custom optics made to specification, unmatched service, and a fair price. Today, that same commitment continues without change. Our growing list of satisfied, repeat customers confirms that our system is working."