Resources Contact Us Home
Browse by Category: Main > Optical & Optics
Class Information
Number: 362/168
Name: Illumination > Self powered lamp > Nonelectric > Selective wavelength transmitting or light blocking means > With separate movable selective elements > Plural
Description: Subject matter having more than one lens.

Patents under this class:

Patent Number Title Of Patent Date Issued
6626555 Portable illumination device Sep. 30, 2003
5790329 Color changing device for illumination purposes Aug. 4, 1998

  Recently Added Patents
Magnetic recording apparatus and recording method of magnetic recording apparatus
Method for imprinting and erasing amorphous metal alloys
Alternate procedures assisting computer users in solving problems related to error and informational messages
Phase-locked loop having a constant damping ratio
Accurate gain implementation in CMOS sensor
Efficient data transfer to/from storage medium of computing device
Image reading system, image reading apparatus, control methods and programs thereof
  Randomly Featured Patents
Data transfer engine with delay circuitry for blocking transfers
Method and apparatus for tree felling
Burglar-proofing device for a personal computer
Method and apparatus for elimination of wheel spin of vehicles
Horn switch including a trapezoidal shaped membrane switch and support plate
Apparatus for cutting and stripping insulation from wire segments having different gauge conductors
Flat panel display device comprising polysilicon thin film transistor and method of manufacturing the same
Web transfer belt and production process for the same
Image forming apparatus with a single driving source
Combination text and picture display system