The following operators can be used to better focus your queries.
( ) , AND, OR, NOT, W/#
? single char wildcard, not at start
* multi char wildcard, not at start
(Cat? OR feline) AND NOT dog?
Cat? W/5 behavior
(Cat? OR feline) AND traits
Cat AND charact*
This guide provides a more detailed description of the syntax that is supported along with examples.
This search box also supports the look-up of an IP.com Digital Signature (also referred to as Fingerprint); enter the 72-, 48-, or 32-character code to retrieve details of the associated file or submission.
Concept Search - What can I type?
For a concept search, you can enter phrases, sentences, or full paragraphs in English. For example, copy and paste the abstract of a patent application or paragraphs from an article.
Concept search eliminates the need for complex Boolean syntax to inform retrieval. Our Semantic Gist engine uses advanced cognitive semantic analysis to extract the meaning of data. This reduces the chances of missing valuable information, that may result from traditional keyword searching.
Disclosed is a method of reducing light entering a camera lens to prevent saturation of the CCD array by interposing polarizing material between camera lens and light source.
English (United States)
This text was extracted from a PDF file.
100% of the total text.
Page 1 of 1
Eliminating CCD Camera Array Saturation Using Polarizing Material
Disclosed is a method of reducing light entering a camera lens to prevent
saturation of the CCD array by interposing polarizing material between camera
lens and light source.
A problem encountered with solid state cameras used to view both luminous
and non-luminous subjects is that f-stop settings which facilitate viewing of the
non-luminous subject causes too much light to impinge on the camera's CCD
array from the luminous subject. This causes saturation or "blooming."
The classical solution is to use a servo driven f-stop on the camera lens. This
proves to be too costly in situations where multiple cameras are required.
Two pieces of polarizing material may be placed between the camera lens
and light source. Rotating one piece with respect to the other via
electromechanical actuator controls the amount of light passing into the camera
Alternatively, an electromechanical actuator may be employed to interpose
polarizing material between lens and subject as needed.