Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Light mask










Image Number 5 for United States Patent #5499304.

Apparatus for producing a light mask for balancing light across a display area of a vehicle instrument cluster comprises a camera, a digitiser and a computer. An image of the display area is obtained and digitized to produce data relating to the illumination levels of the image at a plurality of pixels. The illumination levels are used to calculate an appropriate light mask for the display area on the basis of the transmissive density of the masking ink used and of a reference illumination value relating to the least lit part of the display area which it is desired to illuminate. The light mask comprises an array of dots having a diameter related to the amount of attenuation required in the area in which the dot is located. Up to three masking layers may be provided if a single layer is insufficient to produce the required attenuation with the chosen masking ink. Balanced coverlays can readily be produced, and the number of masking layers required can also be reduced.








 
 
  Recently Added Patents
Double-clocked specialized processing block in an integrated circuit device
Communications module apparatus, integrated circuit and method of communicating data
Piling light
On-chip radial cavity power divider/combiner
Mechanism for packet forwarding using switch pools in flow-based, split-architecture networks
Method for producing fulvic acid
High efficiency wood or biomass boiler
  Randomly Featured Patents
Fifth wheel bracket
Personalized content management
Burnproof device of triple/double switch combination faucet
Method of densifying metal oxides
Multimode optical waveguide device with non-normal butt coupling of fiber to electro-optic planar waveguide
Pin-hole firewall for communicating data packets on a packet network
Cap assembly and lock for aqueous ammonia container
Combined oxygen mask and smoke goggle apparatus with automatic flush valve
Connectable/releasable computer furniture and the latching system used thereon
Buckling fender