Optical Scanning Light-Guiding Prism for Image Position Synchronization
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Solution Overview
Problem
Existing optical scanning apparatuses face challenges in accurately synchronizing the formation of electrostatic latent images on a photoconductor due to deviations in the light beam path, leading to errors in image starting positions.
Innovation Solution
The apparatus employs a light-guiding optical system that includes a deflecting device, an imaging optical system, and a light-guiding prism to guide the light beam from the photoconductor to a synchronous detection sensor, ensuring precise synchronization of the image formation by using a collimator lens, aperture plate, cylindrical lens, and a polygon mirror, along with a light guiding prism that maintains the light beam's alignment and intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a light beam is used to scan and form images on a photoconductor, then image formation can be achieved, but deviations in the light beam path cause errors in image starting positions
Solution Approach 1:
A light-guiding optical system including a light-guiding prism is introduced as an intermediary component between the imaging optical system and the synchronous detection sensor. This prism guides the light beam that has passed through the imaging optical system to the synchronous detection sensor, ensuring that the light path for synchronization detection is consistent with the actual imaging path, thereby eliminating starting position errors and improving both measurement precision and reliability
Solution Approach 2:
The synchronous detection sensor detects the light beam position and provides feedback signals to correct and unify the starting positions of images on the photoconductor. This feedback mechanism continuously monitors and adjusts the light beam path deviations, maintaining accurate synchronization between the light beam scanning and image formation processes
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This configuration enhances the precision of the starting position of images on the photoconductor, preventing errors in image formation and ensuring accurate synchronization, thereby improving the overall image forming process.
Implementation Method 1
a deflecting device configured to deflect and scan the light beam from the light source
Implementation Method 2
an imaging optical system configured to form an image (electrostatic latent image) by using the deflected and scanned light beam on the photoconductor
Implementation Method 3
a light-guiding optical system configured to guide the light beam passing through the imaging optical system to a synchronous detection sensor
Data Source
AI summary
In accordance with an embodiment, an optical scanning apparatus for exposing a photoconductor includes a light source, a deflecting device, an imaging optical system and a light-guiding optical system. The light source configured to emit a light beam. The deflecting device configured to deflect and scan the light beam from the light source. The imaging optical system configured to form an image by using the deflected and scanned light beam on the photoconductor. The light-guiding optical system configured to guide the light beam passing through the imaging optical system to a photodetector.