Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Image display apparatus










Image Number 19 for United States Patent #6910772.

An image display apparatus of a projection-type is provided which includes an illuminator with a light source, an optical modulator illuminated by light illuminator and which makes spatial modulation of the illumination light according to a to-be-displayed image for either transmission or reflection, and a projection lens to form an image of the optical modulator. The apparatus includes also a first reflecting element to reflect, towards the light source, the unwanted light of the light beam emitted from the illuminator and which will not illuminate the optical modulator, and a second reflecting element to guide, by reflecting, the unwanted light once reflected by the first reflecting element. In the apparatus, the combination of the light source and illuminator, which can recycle the unwanted light efficiently in the projector, makes it possible to inexpensively separate and recombine polarized components of the light beam. Use of a single-plate optical modulator formed from a color filter permits to utilize the light with an improved efficiency. Also by adopting a single-plate optical modulator of a sequential color-type, it is possible to attain an improved efficiency of light utilization. Thus, the efficiency of light utilization of an optical modulator whose numerical aperture is small can be improved and the peak brightness on a dark screen can be elevated.








 
 
  Recently Added Patents
Dynamic data filtering system and method
Method and system for phase-sensitive magnetic resonance imaging
Monitoring cloud-runtime operations
Method and system for a low-power client in a wide area network
Horizontal cable manager
Process for the production of an acylation catalyst
Image-monitoring method for electroporation treatment and as associated image-monitoring appliance
  Randomly Featured Patents
Ruthenium-phosphine complex catalysts for asymmetric hydrogenations
Pick-resistant pin-tumbler lock
Methods and compositions for treating subterranean zones
Fragrance-containing insect repellant compositions
Radial medical laser delivery device
Automatic decompression device for valve-controlled internal combustion engines
Abrasive disc of polyurethane bonded metallic wool
Method and device for the continuous mixing of a droplet dispersion with a liquid
Collector grid, electrode structures and interconnect structures for photovoltaic arrays and methods of manufacture
Optical disk apparatus and recording/reproduction method therefor