Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Flash photography apparatus










Image Number 6 for United States Patent #4542974.

In the disclosed flash unit, a preliminary flash for evaluating a proper exposure precedes a main flash. A flash exposure control apparatus respond to tilting of the flash's head after a preliminary flash to present a warning signal, or to renew the preliminary flash and thereby to readjust the aperture to the new exposure condition.








 
 
  Recently Added Patents
Touch screen panel
Large scale data storage system with fault tolerance
Horizontal cable manager
Automatically selecting a paper with increased dimensions than originally desired for printing and adding advertisement content to the increased dimensional area of the paper
System and method for evaluating equipment rack cooling performance
Resin composition, prepreg, resin sheet, metal-clad laminate, printed wiring board, multilayer printed wiring board and semiconductor device
System and method for providing definitions
  Randomly Featured Patents
Gas cartridge inflator having hollow pin of truncate extent
Nonwoven lapped product having strength and edges, process and apparatus for making same
Multiple-termination routing in a wireless network environment with an internet protocol core
Gravitationally animated toy bird
Energy auditing kit
Versatile cart apparatus
Herbicidal sulfonamides
Resonance modulator
Process for producing a multi-layered slow release composite
Industrial process for acetals production in a simulated moving bed reactor