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US 11,951,574 B2Granted
Digital display welding mask with HDR imaging
OwnerCollin Stonerinventor
Life of this patent
Estimating the term…
Abstract
A display system for a welding helmet that includes a darkening filter layer, a high-dynamic range (HDR) camera system to capture an HDR light field, and an optical image stabilization subsystem. Captured images are displayed on an HDR electronic display within the welding helmet without risk of overexposure of ultraviolet radiation to the operator. In some examples, dual electronic displays are used to display different HDR images to each eye of the operator.
Claims20
A welding mask display system, comprising:
- a high-dynamic range (HDR) camera subsystem to:
- select an exposure time as a submultiple of an operational frequency of a welder,
- generate HDR frames of an HDR video using at least one image captured with the selected exposure time,
- receive data identifying an operational frequency of the welder, and
- select the exposure time of at least one image used to generate each HDR frame of the HDR video as a submultiple of the identified operational frequency of the welder;
- an optical filter to attenuate at least some wavelengths of optical radiation;
- a digital electronic display to display the HDR video to an operator;
- and
- a weld cycle detection subsystem to:
- detect a duration of each weld light intensity cycle of the welder, and
- transmit data identifying the detected weld light intensity cycle duration to the HDR camera subsystem.
8 more elements
A welding mask display system, comprising:
- a high-dynamic range (HDR) camera subsystem to:
- select an exposure time as a submultiple of an operational frequency of a welder,
- generate HDR frames of an HDR video using at least one image captured with the selected exposure time,
- receive data identifying an operational frequency of the welder, and
- select the exposure time of at least one image used to generate each HDR frame of the HDR video as a submultiple of the identified operational frequency of the welder;
- an optical filter to attenuate at least some wavelengths of optical radiation;
- a digital electronic display to display the HDR video to an operator;
- and
- a welder interface subsystem to:
- receive data from the welder identifying the operational frequency, and
- relay the data from the welder identifying the operational frequency to the HDR camera subsystem.
8 more elements
A welding mask display system, comprising:
- a high-dynamic range (HDR) camera subsystem to:
- select an exposure time as a submultiple of an operational frequency of a welder,
- generate HDR frames of an HDR video using at least one image captured with the selected exposure time,
- receive data identifying an operational frequency of the welder, and
- select the exposure time of at least one image used to generate each HDR frame of the HDR video as a submultiple of the identified operational frequency of the welder;
- an optical filter to attenuate at least some wavelengths of optical radiation;
- and
- a digital electronic display to display the HDR video to an operator,
- wherein the HDR camera subsystem is configured to generate the HDR video with a frame rate that is a submultiple of the operational frequency of the welder.
6 more elements
Dependencies are inferred from the claim text.