External light and shadow module and projection device
By designing an external light and shadow module with a light and shadow cavity, the problem of limited functionality in projection devices is solved, enabling the projection of light and shadow patterns, meeting users' needs for projection atmosphere, and enhancing the versatility of projection devices.
CN224317901UActive Publication Date: 2026-06-02SHENZHEN HUOLE TECH DEV CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUOLE TECH DEV CO LTD
- Filing Date
- 2025-05-09
- Publication Date
- 2026-06-02
AI Technical Summary
Technical Problem
Existing projection equipment has relatively limited functionality and cannot meet users' needs for a specific projection atmosphere.
Method used
An external light and shadow module is designed, which forms a light and shadow cavity by sealing the first optical element and the second optical element together. This cavity is used to turn the initial projection light into a light and shadow projection light, which is then emitted from the second lens to achieve the projection effect of the light and shadow pattern.
Benefits of technology
It achieves projection effects with light and shadow patterns, creates a specific projection atmosphere, meets users' needs for projection atmosphere, and enhances the functional versatility of projection devices.
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Smart Images
Figure CN224317901U_ABST
Abstract
The embodiment of the application belongs to the technical field of projection display, and relates to an external light shadow module applied to a projection device, the projection device being used for projecting initial projection light, and comprising a first optical element and a second optical element; the first optical element comprising a first lens part used for allowing the initial projection light to be incident; the second optical element comprising a second lens part and a base connected with each other, the base being used for being detachably connected with the projection device; the first optical element and the second optical element being sealingly connected, so that a light shadow cavity is formed between the first lens part and the second lens part; the light shadow cavity being used for allowing the initial projection light to form light shadow projection light; and the second lens part being used for emitting the light shadow projection light. The application also relates to a projection device comprising the above external light shadow module. The technical scheme provided by the application is beneficial to meeting the demand of a user for a projection atmosphere.
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