A. C. S. van Heel

1899 – 1966

• Advanced optical techniques
• Wat is licht?
• What is light?
• Advanced Optical Techniques
• Advanced optical techniques
• Inleiding in de optica
• Lenzen
• Optics
• WHAT IS LIGHT
• What is light? [by] A.C.S. van Heel and C.H.F. Velzel