Projector controller and related methods
The projector controller addresses the risk of eye damage from laser projectors by dynamically controlling the projector's output based on detected objects, maintaining seating capacity and safety without reducing revenue.
JP7842797B2Active Publication Date: 2026-04-08DOLBY LABORATORIES LICENSING CORP
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Patent Information
- Application Number
- JP2024021021
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2018-05-16
- Filing Date
- 2024-02-15
- Publication Date
- 2026-04-08
- Estimated Expiration
- 2039-05-14
AI Technical Summary
Technical Problem
Laser-type digital projectors used in movie theaters pose a risk of eye damage due to high-intensity light, necessitating larger exclusion zones that reduce seating capacity and revenue.
Method used
A projector controller with an object detector and control electronics that optically senses the presence of objects within a detection area and controls the projector to prevent eye damage by reducing or turning off the screen illumination.
Benefits of technology
Maintains seating capacity while protecting viewers from high-intensity projector lighting, preventing eye damage by dynamically adjusting the projector's output based on detected objects.
✦ Generated by Eureka AI based on patent content.
Abstract
To protect eyes of audience members from cinema projectors emitting intense light.SOLUTION: A projector controller includes an object detector and control electronics and protects audience members from intense light imposing an exclusion zone in front of a projector. The object detector optically senses a presence of an object in a detection region beneath the exclusion zone and above the audience members. The control electronics control the projector when the object detector indicates the presence of the object in the detection region. A method for protecting audience members from intense light imposing the exclusion zone in front of an output of a projector includes the steps of: (i) optically sensing the presence of the object in the detection region between the exclusion zone and the audience members, and (ii) controlling the projector when the presence of the object is sensed in the detection region.SELECTED DRAWING: Figure 4
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