Rotating One-Way Mirror Measuring Instrument for Spectacle Fitting
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Solution Overview
Problem
Optical stores face challenges in deploying measuring instruments for vision parameters due to space constraints, leading to measurement errors from poor positioning and environmental intimidation, which affects the accuracy of corrective eyeglass lens production.
Innovation Solution
A measuring instrument with a frame-mounted one-way mirror and screen that can be reversibly substituted during measurement, allowing for correct positioning without occupying excessive space, featuring a pivot connection and sliding mechanism for screen placement, and a wireless controller for camera and display instructions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a measuring instrument with screen and one-way mirror is deployed in an optical shop, then measurement capability is provided, but available space for displays, mirrors and advertising screens is reduced
Solution Approach 1:
The measuring instrument incorporates a rotatable frame that can pivot between different orientations. During the positioning phase, the frame rotates to present the advertising screen to the wearer. During the measurement phase, the frame rotates to present the one-way mirror to the wearer. This dynamic reconfiguration allows the same physical space to serve multiple functions at different times, resolving the contradiction between providing measurement capability and maintaining available space for other optical shop functions.
2Measurement precision
If the wearer positions themselves to look straight ahead at a distance of three to five meters, then measurement accuracy is improved, but positioning errors occur due to poor right-left orientation and environmental intimidation
Solution Approach 1:
The measuring instrument uses visual feedback displayed on the advertising screen during the positioning phase to guide the wearer into the correct position. The screen can display instructions, indicators, or visual cues that help the wearer understand where to stand and how to orient themselves. This feedback mechanism reduces positioning errors caused by poor right-left orientation and environmental intimidation, as the wearer receives clear directional guidance rather than relying solely on their own spatial awareness.
Solution Approach 2:
The advertising screen acts as an intermediary between the measuring instrument and the wearer during the positioning phase. Instead of the wearer directly interacting with the measuring instrument, they first interact with the familiar and non-intimidating advertising screen, which provides guidance and prepares them for the measurement process. This intermediary reduces the psychological barrier and helps the wearer achieve proper positioning more easily.
3Ease of operation
If a screen is mounted on the measuring instrument column, then control and interaction during measurement is enabled, but the screen is small compared to advertising screens and attracts less attention
Solution Approach 1:
The instrument uses the same advertising screen for both advertising purposes and control/interaction purposes at different times. During the positioning phase, the screen functions as a large, attention-grabbing advertising display. During the measurement phase, the screen is rotated away and the one-way mirror is presented to the wearer, while control functions are accessed through other interfaces. This dynamic time-multiplexing allows the screen to maintain its large size and visual impact while still providing control capability when needed.
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 measurement of parameters for corrective glasses production by ensuring proper wearer positioning, reducing measurement errors and maintaining store space, while allowing for effective advertising and interaction during the process.
Implementation Method 1
at least one screen at least partially obscuring and capable of reflecting at least partially the light, mounted on the frame
Data Source
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AI summary
The invention concerns a method for measuring parameters necessary for producing corrective spectacles using an instrument (1) comprising the following steps: S1: positioning the wearer at a predefined distance from the frame (2) of the instrument (1), S2: placing a screen (5) of the instrument (1) opposite the wearer and displaying at least one image, S3: placing the frame of the corrective spectacles on the face of the wearer, S4: substituting the screen (5) with a one-way mirror (4) of the instrument, S5: taking the measurements.