Building image collecting lens
Schlüsselwörter
vector,
school,
lens,
convex,
optical,
optic,
sharpened,
collecting,
light,
concave,
contact,
cut-out,
schematic,
axis,
beam,
convergence,
diagram,
direction,
divergence,
education,
cyclopaedia,
geometry,
illustration,
lamp,
learning,
lecture,
lesson,
line,
physics,
point,
ray,
science,
system,
task,
university,
plano,
specs
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