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1. US20170114992 - Laser Projection System

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United States of America
Application Number 15127783
Application Date 21.03.2015
Publication Number 20170114992
Publication Date 27.04.2017
Publication Kind A1
IPC
F21V 23/04
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
23Arrangement of electric circuit elements in or on lighting devices
04the elements being switches
H01S 3/00
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
SDEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
3Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
F21V 21/15
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
21Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
14Adjustable mountings
15specially adapted for power operation, e.g. by remote control
F21V 25/00
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
25Safety devices structurally associated with lighting devices
G01J 1/42
GPHYSICS
01MEASURING; TESTING
JMEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
1Photometry, e.g. photographic exposure meter
42using electric radiation detectors
G02B 27/20
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27Optical systems or apparatus not provided for by any of the groups G02B1/-G02B26/119
18for optical projection, e.g. combination of mirror and condenser and objective
20for imaging minute objects, e.g. light-pointer
CPC
F21V 23/0457
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
21LIGHTING
VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
23Arrangement of electric circuit elements in or on lighting devices
04the elements being switches
0442activated by means of a sensor, e.g. motion or photodetectors
0457the sensor sensing the operating status of the lighting device, e.g. to detect failure of a light source or to provide feedback to the device
Applicants LIGHTWAVE INTERNATIONAL, INC.
Inventors George Dodworth
Title
(EN) Laser Projection System
front page image
Abstract
(EN)

A laser projection system having built-in safety systems is disclosed. Further disclosed is a method of operating a laser projection system such that safe operation is a factor only of meeting a threshold distance between the laser unit and an audience member. To accomplish safe operation at the threshold distance, the laser projection system is pre-calibrated to operate below maximum permitted exposure levels at the threshold distance. In this manner of operation, laser lighting can be accomplished by non-laser professionals without the complexity, external sensors, and need for calibration at the venue.
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