Drawing Apparatus With Reflective Filter For Simultaneous Viewing
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Solution Overview
Problem
Current drawing tools do not effectively allow users to simultaneously view both the object being reproduced and the drawing surface, making it difficult to accurately generate hand-drawn reproductions of images or objects.
Innovation Solution
A drawing apparatus with a minor and reflective filter arrangement, allowing users to view both the object and the drawing surface through a single eyepiece, featuring an adjustable angled stand and a selectable filter for adjusting focus, enabling simultaneous viewing and accurate reproduction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If traditional drawing tools are used, then the device complexity is low, but the user cannot simultaneously view both the object being reproduced and the drawing surface
Solution Approach 1:
The patent combines the object viewing path and drawing surface viewing path into a single optical system through the eyepiece. The reflective filter merges these two separate viewing functions into one unified optical path, allowing simultaneous viewing of both the reference object and the drawing surface through a single eyepiece, thereby improving viewing accuracy without requiring multiple separate viewing devices
Solution Approach 2:
The reflective filter acts as an intermediary optical element that enables the superimposition of the drawing surface image onto the object image. This intermediary component allows light from both the object and the drawing surface to be combined and directed to the user's eye through the eyepiece, solving the contradiction by providing a mediation mechanism that integrates multiple viewing functions
2Ease of operation
If a single eyepiece is used for simultaneous viewing, then the ease of operation is improved, but the focus control for different viewing planes becomes difficult
Solution Approach 1:
The patent implements dynamic focus adjustment through the selectable filter arrangement. The ability to switch between different filter configurations allows the focus state of the drawing surface relative to the object to be dynamically changed, enabling the user to adjust which plane is in sharper focus as needed. This dynamic adaptability resolves the contradiction by providing flexible focus control within a single eyepiece system
Solution Approach 2:
The selectable filter arrangement changes optical parameters (focus, contrast, brightness) to allow adjustment of the relative focus between the drawing surface and the object. By modifying these optical parameters through filter selection, the system enables independent focus control for each viewing plane while maintaining the single eyepiece configuration, thereby improving ease of operation
3Manufacturing precision
If the drawing surface image is superimposed on the object, then the manufacturing precision of the reproduction is improved, but the device complexity increases due to the filter arrangement
Solution Approach 1:
The patent uses optical copying principles to create a superimposed image of the drawing surface onto the object plane. The reflective filter system creates an optical copy of the drawing surface that appears to be located at the same plane as the object, allowing the user to trace or reproduce the object with high precision by directly comparing the superimposed images. This copying mechanism achieves high reproduction accuracy while using relatively simple optical components
Solution Approach 2:
The tinted filter in the selectable filter arrangement modifies the optical properties (including color/brightness characteristics) of the drawing surface image to enhance its visibility and contrast relative to the object. This color/brightness adjustment helps distinguish the drawing surface from the object in the superimposed view, improving reproduction accuracy while using a relatively simple filter component
4Adaptability or versatility
If an adjustable angled stand is used for supporting the drawing object, then the adaptability is improved, but the ease of manufacture decreases
Solution Approach 1:
The patent divides the stand into multiple hinged segments that can be folded and adjusted independently. This segmentation allows the stand to be configured in various angles and positions to accommodate different object sizes and shapes. The modular segmented structure provides adaptability while using simple, standardized hinge components that are easy to manufacture and assemble
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
Enables accurate and precise hand-drawn reproduction of images or objects by allowing users to see the drawing surface superimposed on the object, with adjustable focus options for enhanced clarity, facilitating accurate tracing and reproduction.
Implementation Method 1
a minor and reflective filter arrangement that allows a user to simultaneously view, through a single eyepiece, both the object being reproduced and the drawing surface
Implementation Method 2
a selectable filter arrangement for adjusting an amount of focus for viewing the writing surface relative to an amount of focus for viewing the drawing object being reproduced
Data Source
AI summary
A drawing apparatus for accurately generating a hand-drawn reproduction of an image or object is provided. The drawing apparatus includes a mirror and reflective filter arrangement that allows a user to view, through a single eyepiece, both the object being reproduced and the drawing surface where the user generates a hand-drawn reproduction of the viewed drawing object. In one embodiment, the apparatus includes an adjustable, angled stand for supporting the drawing object, and a drawing surface for generating hand-drawn reproductions. As viewed through the single eyepiece, an image of the drawing surface appears superimposed on the drawing object being reproduced. In further embodiments, the single eyepiece is used with a selectable filter arrangement for adjusting the amount of focus on the drawing surface and/or drawing object.