Optical: systems and elements – Deflection using a moving element
Patent
1992-03-24
1993-10-19
Ben, Loha
Optical: systems and elements
Deflection using a moving element
359207, 359216, G02B 2608
Patent
active
052551130
ABSTRACT:
A post objective type optical scanner for having a light source for emitting a light beam having a first width in the scanning direction and a second width in the sub-scanning direction, a single lens having an incident surface and an emergent surface and including a scanning optical system having a first light source side principal point, and a sub-scanning optical system having a second light source side principal point, for converting a light beam emitted from the light source having a scanningwise width and a subscanningwise width, the scanning optical system converting the first width of the light beam into the scanningwise of the scanning beam while the sub-scanning optical system converting the second width of the light beam into the subscanningwise width of the scanning beam. The distance of the first light source side principal point from the light source is greater than the distance of the second light source side principal point from the light source. The incident surface of the single lens is toric, having an aberration correction surface for the sub-scanning optical system, while the emergent surface is toric or cylindrical, having an aberration correction surface for the sub-scanning optical system.
REFERENCES:
patent: 4674825 (1987-06-01), Tateoka et al.
Yamamoto Yoshiharu
Yoshikawa Motonobu
Ben Loha
Matsushita Electric - Industrial Co., Ltd.
LandOfFree
Pos-objective type optical scanner does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Pos-objective type optical scanner, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pos-objective type optical scanner will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1356339