Automatic Diopter Adjustment in VR Headsets via Optical Sensor and Worm Gear
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Solution Overview
Problem
Current VR apparatuses require manual adjustment of diopters, which is inconvenient and affects user experience, as users need to repeatedly put on and take off the device or manually adjust buttons to achieve clear image definition.
Innovation Solution
A diopter adjustment device comprising a lens mounting part, a guide adjustment part, and a driving part, which allows for automatic adjustment of diopters by moving the lens mounting part along a preset path driven by the guide adjustment part and the driving part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual adjustment of diopter is used, then device structure is simple, but user experience deteriorates due to inconvenient adjustment requiring repeated putting on and taking off
Solution Approach 1:
The system uses an optical sensor to automatically detect the user's visual acuity requirements and drives the lens mounting part to adjust the diopter automatically without manual intervention, making the system adjust itself based on detected parameters
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated system combining optical detection (sensor) and mechanical actuation (driving part with worm gear), substituting human operation with an automated sensing and actuating mechanism
2Productivity
If manual adjustment is required, then device structure remains simple, but adjustment time increases affecting productivity
Solution Approach 1:
The optical sensor continuously detects or pre-detects the user's visual acuity parameters, and the system prepares the appropriate lens position in advance, enabling quick adjustment without waiting for manual trial-and-error
Solution Approach 2:
The automated driving part responds immediately to optical detection signals, self-adjusting the lens position without requiring user time for manual manipulation, significantly reducing adjustment time
3Ease of operation
If automated adjustment is implemented, then ease of operation improves, but device complexity increases due to additional driving mechanisms
Solution Approach 1:
The patent introduces an optical sensor as an intermediary between the user's visual system and the mechanical adjustment mechanism, translating optical information into mechanical action through the driving part
Solution Approach 2:
Manual mechanical adjustment is substituted with an automated electromechanical system where an optical sensor detects parameters and a driving part (motor with worm gear) executes the adjustment, replacing human hand operation with automated sensing and actuation
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
The automatic diopter adjustment device improves user experience by allowing quick and convenient adjustment of diopters without the need for manual intervention, enhancing the overall usability and clarity of the VR experience.
Implementation Method 1
a driving motor, a worm, a transmission gear set, and a ring gear. An output shaft of the driving motor is coupled to the worm to drive the worm to rotate
Data Source
AI summary
A diopter adjustment device and a virtual reality (VR) apparatus are provided. The diopter adjustment device includes a lens mounting part, a guide adjustment part, and a driving part. The lens mounting part is configured to mount a lens module. The guide adjustment part is connected to the lens mounting part, the guide adjustment part moves along a preset path to drive the lens mounting part to move along a first direction, and the driving part is configured to drive the guide adjustment part to move along the preset path. Compared with the prior art, the diopter adjustment device includes the lens mounting part, the guide adjustment part, and the driving part, the driving part drives the guide adjustment part to move along the preset path, so as to drive the lens mounting part to reciprocate to automatically adjust the diopters.