Film Roll Visual Indication for Eye Protective Goggles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing eye protective goggles with film advance systems do not provide an effective warning when the film is running low, forcing drivers to remove their goggles mid-race, which is dangerous and inconvenient.
Innovation Solution
A film roll with a transparent main part and a visual indication along the upper edge, which appears when a certain amount of film remains, allowing the driver to plan their film usage and avoid running out during a race.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no visual indication is provided on the film, then the film remains transparent and does not interfere with the driver's vision, but the driver has no warning when the film is running low and must remove goggles mid-race
Solution Approach 1:
The patent applies a visual indication in the form of a colored pattern (such as a red line or colored squares) on the transparent film. This color change principle allows the film to remain mostly transparent for clear vision while providing a visible warning signal when the film is running low, resolving the contradiction between maintaining transparency and providing warning information.
Solution Approach 2:
The visual indication acts as an intermediary element between the film supply mechanism and the driver. It translates the abstract state of 'film remaining' into a visible signal that the driver can perceive through the goggle lens, enabling the driver to manage film usage without removing goggles.
2Loss of information
If a visual indication is added to the film, then the driver receives early warning of low film remaining, but the film may become less transparent and could interfere with the driver's vision
Solution Approach 1:
The visual indication is applied locally to specific portions of the film rather than the entire film surface. The indication is positioned in the upper portion of the film or in specific patterns that provide warning information while minimizing interference with the overall transparency of the film across the lens area.
Solution Approach 2:
Instead of making the entire film opaque or highly visible, the patent uses partial visual indication - only the necessary minimum pattern is applied to convey the warning message. This partial action maintains sufficient transparency for clear vision while providing the required information.
3Illumination intensity
If the film indication is placed in the upper portion of the film, then the driver's primary forward vision is not blocked, but the indication may be harder to perceive against the background
Solution Approach 1:
The visual indication uses high-contrast colors (such as red, orange, or yellow patterns) that stand out against the transparent or lightly colored film background. This color change principle ensures the indication is easily detectable by the driver even when positioned in the upper portion of the film where it least interferes with forward vision.
Solution Approach 2:
The visual indication uses asymmetric patterns or designs that break the uniformity of the film appearance. This asymmetry makes the indication more detectable and noticeable to the driver, ensuring it stands out clearly against the background while maintaining its position in the upper film portion.
Data Source
AI summary
A film roll for use in a film advance system for eye protective goggles comprises a transparent film wound on the spindle. The film has an inner trailing end, a leading end, and a total film length. In use, the transparent film extends across a lens of the goggles. The transparent film presents a transparent main film part, which extends in the longitudinal direction from the trailing end to the leading end, and which presents optically uniform characteristics at least in the longitudinal direction. The transparent film is provided with at least one visual indication, which is located above the main film part and extends along an upper film edge of the transparent film, said at least one visual indication being limited to a trailing part of said total film length.