Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Projection type image display apparatus










Image Number 19 for United States Patent #7850309.

Elements of an optical system (12) of a projection type image display apparatus are stored in an optical system storage (46) having an upper opening in such a way that the optical element to be arranged close to a light source is fitted in the frame provided in the high-temperature region of the optical system storage (46) close to the light source, while the rest of the optical elements are respectively fitted in the frames in the low-temperature region of the optical system storage (46) remote from the light source. The upper opening in the high-temperature region is covered, in the low-temperature region, with a resilient metal lid (471), and, in the low-temperature region, covered with a resilient resin lid (472). Portions of these lids are partially cut into spring-like narrow strips having tips configured to firmly and accurately hold the lenses fitted in the respective frames, whereby the dimensional tolerances of the optical elements and the frames can be absorbed solely by the lids without resorting to any other parts.








 
 
  Recently Added Patents
Charge pump circuit and power-supply method for dynamically adjusting output voltage
Methods and compositions related to glucocorticoid receptor antagonists and breast cancer
Fast carrier allocation in multi-carrier systems
Detecting the type of NAT firewall using messages
Method and device for reliable estimation of network traffic
Molten alloy solidification analyzing method and solidification analyzing program for performing the same
Physiological measuring system comprising a garment in the form of a sleeve or glove and sensing apparatus incorporated in the garment
  Randomly Featured Patents
Hermetically sealed harmonic drive transmission manufacture
Foil slit cutter
Rubber composition for magnetic encoder
Optical data packet compressor/decompressor
Abruquinone derivatives useful in the treatment of inflammation and allergic reactions
Maintaining even and odd array pointers to extreme values by searching and comparing multiple elements concurrently where a pointer is adjusted after processing to account for a number of pipe
Fuel shut-off system for fuel-burning heater
Electrical sleeve terminal
Process of transfer printing comprising pretreatment with a polyurethane resin mixture
Printing apparatus, content output apparatus, and printing system