Optical scanning device and image forming apparatus

By introducing a deflection unit, a first imaging optical system, a light receiving element, a first optical element and a holding member into the optical scanning device, the problem of inaccurate deflection and guidance is solved, and high-quality image formation is achieved.

CN119717257APending Publication Date: 2025-03-28CANON KK
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Patent Information

Application Number
CN202411329179.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-09-28
Filing Date
2024-09-24
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

In the synchronous detection process, existing light scanning devices are difficult to effectively control the deflection and guidance of the light beam, resulting in inaccurate image formation.

Method used

An optical scanning device is designed, including a deflection unit, a first imaging optical system, a light receiving element, a first optical element and a holding member. Through the collaborative work of these components, efficient deflection and guidance of the light beam is achieved, ensuring accurate formation of the image on the scanned surface.

Benefits of technology

This device solves the problem of inaccurate image formation in the prior art by improving the synchronous detection accuracy of the light beam and the accuracy of image formation, and realizes higher quality image scanning.

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Abstract

The invention discloses an optical scanning device and an image forming apparatus. The light scanning apparatus according to an embodiment includes: a deflection unit configured to deflect a first light beam to scan a first scanned surface in a main scanning direction; a first imaging optical system configured to guide the first light beam deflected by the deflection unit to a first scanned surface; a light receiving element configured to receive the first light beam deflected by the deflection unit without a first imaging optical system; a first optical element configured to guide the first light beam deflected by the deflection unit to a light receiving element; and a holding member configured to hold the deflection unit, the first imaging optical system, the light receiving element, and the first optical element, in which the first optical element and the deflection unit are arranged on opposite sides from each other with respect to a first surface of the holding member.
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