Invention Grant
- Patent Title: Solid state lighting fixtures and image capture systems
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Application No.: US15665573Application Date: 2017-08-01
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Publication No.: US10348974B2Publication Date: 2019-07-09
- Inventor: Daniel J. Pope , Michael James Harris , John Roberts , Ashish Ekbote , Robert D. Underwood
- Applicant: Cree, Inc.
- Applicant Address: US NC Durham
- Assignee: Cree, Inc.
- Current Assignee: Cree, Inc.
- Current Assignee Address: US NC Durham
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: F21K9/00
- IPC: F21K9/00 ; H03K7/08 ; F21V23/00 ; F21V23/04 ; G03B15/03 ; G03B17/00 ; H03K3/017 ; H04N5/235 ; H05B33/08 ; H05B37/02 ; F21Y115/10

Abstract:
An LED-based lighting fixture sets or adjusts a parameter of a drive signal that is used to drive its LEDs to be more compatible with the camera system; the camera system sets or adjusts an image capture parameter to be more compatible with the LED-based lighting fixture, or a combination thereof. The drive signal may be a PWM signal with a variable PWM frequency and/or duty cycle, a variable DC signal, or any combination thereof. The parameter of the drive signal that may be set or adjusted includes, but is not limited to, a PWM period, PWM frequency, PWM duty cycle, amplitude of the active and inactive portions of the PWM signal, and the like. The image capture parameter that may be adjusted includes, but is not limited to, frame rate, frame period, integration time, gain, shutter type (i.e. rolling shutter, global shutter, etc.), and the like.
Public/Granted literature
- US20180041681A1 SOLID STATE LIGHTING FIXTURES AND IMAGE CAPTURE SYSTEMS Public/Granted day:2018-02-08
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