An input device based on multiple light sources
By employing a multi-light source component and filter element design in the input device, the problems of complex structure and difficulty in multi-key recognition in the prior art are solved, realizing the miniaturization of the device and the multi-key anti-ghosting function, and improving the service life and recognition efficiency of the device.
CN224287488UActive Publication Date: 2026-05-26HENAN CHUANGZHENG NETWORK TECH CO LTD
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Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN CHUANGZHENG NETWORK TECH CO LTD
- Filing Date
- 2025-07-14
- Publication Date
- 2026-05-26
AI Technical Summary
Technical Problem
Existing key-type input devices suffer from problems such as complex structure, limited lifespan, and inability to recognize multiple keys pressed simultaneously.
Method used
It employs multi-light source components and reflective or transmissive filter elements, and controls the reflection or transmission of light through a trigger mechanism to enable multiple buttons to be connected in parallel on a single optical channel, using the light emitted by the RGB light source components for button recognition.
Benefits of technology
It achieves miniaturization of input devices and multi-key anti-ghosting function, improves the recognition efficiency of key count, and extends the service life of the device.
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Figure CN224287488U_ABST
Abstract
This utility model relates to a multi-light source input device, comprising a substrate, on which a light source assembly, a photosensitive assembly, a triggering mechanism, and a filter element are disposed. An optical channel is provided between the light source assembly, the photosensitive assembly, and the triggering mechanism. The light source assembly and the photosensitive assembly are located on the same side of the triggering mechanism. The filter element is either a reflective filter element or a transmissive filter element. The reflective filter element can be triggered by the triggering mechanism; for the transmissive filter element, the triggering mechanism includes a reflective element, and the filter element is located between the reflective element and the light source assembly. The reflective element has a first state and a second state. This utility model connects multiple triggering mechanisms in parallel on one optical channel. The light emitted by the light source assembly exits and returns within the same optical channel, significantly reducing the length of the optical channel and facilitating miniaturization of the input device. This utility model can also connect more triggering mechanisms on one optical channel, and when used in a keyboard, it can also achieve multi-key rollover within a set of keys.
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