Observation Optics With Astigmatism Correction for Clear Imaging
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Solution Overview
Problem
Users with astigmatism or presbyopia face difficulties in viewing targets clearly due to distorted or unfocused images in imaging apparatus observation units, necessitating adjustments based on their vision and posture.
Innovation Solution
An imaging apparatus with a correction lens, storage unit, and processor that adjusts the ray angle based on user data, including astigmatism and iris information, to correct visual distortions and focus issues, and can accommodate different postures and glasses prescriptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a correction lens is added to adjust ray angles for users with astigmatism or presbyopia, then image clarity and focus are improved, but device complexity increases
Solution Approach 1:
A correction lens is introduced as an intermediary optical element between the display device and the user's eye. This correction lens specifically addresses astigmatism and presbyopia by adjusting ray angles, thereby improving image clarity without requiring fundamental changes to the entire display system architecture.
Solution Approach 2:
The correction lens provides localized optical correction tailored to specific vision defects (astigmatism and presbyopia). Rather than redesigning the entire observation unit, the solution applies a targeted local modification that addresses the specific optical aberrations experienced by users with these conditions.
2Ease of operation
If adjustment processing is performed based on user vision data, then viewing comfort is improved, but processing time increases
Solution Approach 1:
Vision correction data is pre-acquired and stored in advance for multiple users. When a user accesses the observation unit, the system quickly retrieves the pre-stored correction parameters corresponding to that user, avoiding time-consuming real-time calculations and enabling immediate adjustment of the correction lens.
Solution Approach 2:
The system utilizes feedback from pre-acquired vision examination data to automatically adjust the correction lens settings. This feedback mechanism allows the system to adapt to individual user needs without requiring manual adjustment or real-time vision testing, thereby reducing processing time while maintaining viewing comfort.
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 clear and focused viewing by adjusting the correction lens according to individual user characteristics, improving image clarity for users with astigmatism and presbyopia.
Implementation Method 1
an observation unit that includes a correction lens for correcting a ray angle incident on an eye of a user
Data Source
AI summary
An imaging apparatus of the present invention includes an imaging element, an observation unit that includes a correction lens for correcting a ray angle incident on an eye of a user, and with which a target to be imaged of the imaging element is observable, a storage unit that stores data related to astigmatism of the user, and a processor that controls the correction lens. The processor is configured to execute readout processing of reading out the data from the storage unit storing the data related to the astigmatism of the user, determination processing of determining an inclination of a second direction of the imaging element with respect to a first direction of the eye of the user, and adjustment processing of adjusting a correction amount of the ray angle by the correction lens based on the data read out by the readout processing and a result determined by the determination processing.