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| 1 half peak divergence; 1 half peak spread; one half peak divergence; one half peak spread | |||
| |||
| half-peak divergence; one-half-peak spread of a projector, in a specified plane | |||
| |||
| 1 half peak divergence; 1 half peak spread; one half peak divergence; one half peak spread | |||
| |||
| half-peak divergence; one-half-peak spread of a projector, in a specified plane | |||
