Patent ID: 11860357
Assignee: NALUX CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H  B | IPC B  G  H

Claim 2:
3. The method for manufacturing scanning optical systems according to claim 1, wherein relationships

0.75≤f/W1≤0.85  (1)

0.75≤f/W2≤0.85  (2)

0.7≤ϕ2/ϕ1≤0.8  (3)

and

2.4≤β≤3.2  (4)

hold, where f represents a system focal length, W1 represents the first value, W2 represents the second value, ϕ1 represents a diameter of an inscribed circle of the first polygon mirror, ϕ2 represents a diameter of an inscribed circle of the second polygon mirror, and β represents the lateral magnification in the cross section in the sub-scanning direction of the imaging optical system.