The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2009
Filed:
Aug. 31, 2006
Milton Barnard Hollander, Stamford, CT (US);
Shahin Baghai, Trumbull, CT (US);
Milton Barnard Hollander, Stamford, CT (US);
Shahin Baghai, Trumbull, CT (US);
White Box, Inc., Stamford, CT (US);
Abstract
Hand held infrared measurement devices are disclosed, having at least two separated laser sighting emitters (), which together mark and define a sighting area on a target surface (″). In an embodiment of the invention, separate lasers () are provided which each produce a beam () used to illuminate a respective separate optical beam directing element (), mounted between each laser emitter and the target surface (″). The element may be, for example, any of the optical glass fibers, a prism, or a lens, such as a diffraction beam splitter lens, or a refractive lens, each element directing laser light onto the target surface to produce a visually perceptible target marking. The element is preferably made of optical material such as glass or plastic (e.g., methyl methacrylate). Separate laser emitters permit greater brightness displayed on the target within safe operation limits than use of a single laser alone, even with a beam splitter. The laser emitters may each be separately powered and may also each be switched on or off or changed in brightness.