Title:
SCAN TYPE OPTICAL DEVICE
Document Type and Number:
Japanese Patent JP3206947
Kind Code:
B2
Abstract:
PURPOSE: To provide the scan type optical device which can suppress the generation of scan face bending and further can suppress the influence to a scan face caused by ghost light.
CONSTITUTION: This device is equipped with a laser beam source 10, scanning deflector 30 to deflect the laser beam emitted from the laser beam source 10 within the main scanning face, scanning lens 40 to converge the deflected laser beam onto an image plane, condenser lens 13 to temporarily form the image of the light flux from the laser beam source within a sub scanning plane vertical to the main scanning plane, and prism block 20 provided between the scanning deflector 30 and the scanning lens 40 as a parallel plane board, and a reflection proof processing is executed to the side face of this parallel plane board 20.
Inventors:
Rei Morimoto
Application Number:
JP664592A
Publication Date:
September 10, 2001
Filing Date:
January 17, 1992
Export Citation:
Assignee:
Asahi Optical Co., Ltd.
International Classes:
G02B26/10; (IPC1-7): G02B26/10
Domestic Patent References:
| JP60233616A | ||||
| JP5989301U |
Attorney, Agent or Firm:
Tamio Nishiwaki