Holographic scanner for reconstructing a scanning light spot...

Details Holographic scanner for reconstructing a scanning light spot... Holographic scanner for reconstructing a scanning light spot...

G - Physics

02

B

88/0.1, 88/96.2

G02B 5/32 (2006.01) G02B 26/10 (2006.01)

Patent

CA 1084314

ABSTRACT OF THE DISCLOSURE A holographic spinner reconstructs a light spot to rapidly scan a narrow line on a suitable "write" surface to generate an image. The geometry of the holographic spinner with respect to the holographic reconstruction light beam is such that the angle of incidence of a reconstruction beam is equal to the first order diffraction angle thereby making the spinner invariant with respect to mechanically caused wobble.

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