LandOfFree - US Patents - Listing for Optical: systems and elements

Optical: systems and elements – Absorption filter – With support or frame

Filter, color wheel using the filter, and manufacturing...

Optical: systems and elements – Optical frequency converter – Dielectric optical waveguide type

Filter-free wavelength converter

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Filtered light signal control suitable for toys

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Filtering system for eliminating dispersion and method for...

Optical: systems and elements – Absorption filter

Filters of electronic displays

Optical: systems and elements – Deflection using a moving element – Using a periodically moving element

Filters to adjust DWDM transmissivity

Optical: systems and elements – Optical amplifier – Correction of deleterious effects

Filters, including optical filters, having equal group delay...

Optical: systems and elements – Optical amplifier – Correction of deleterious effects

Filters, including optical filters, having equal group delay...

Optical: systems and elements – Holographic system or element – Using a hologram as an optical element

Finder equipped with an indicator

Optical: systems and elements – Compound lens system – Telescope

Finder of real image type

Optical: systems and elements – Compound lens system – Telescope

Finder optical system

Optical: systems and elements – Prism – With reflecting surface

Finder optical system

Optical: systems and elements – Lens – With reflecting element

Finder optical system

Optical: systems and elements – Lens – With reflecting element

Finder optical system

Optical: systems and elements – Single channel simultaneously to or from plural channels – By surface composed of lenticular elements

Finder optical system

Optical: systems and elements – Lens – With variable magnification

Finder optical system

Optical: systems and elements – Compound lens system – Variable magnification

Finder optical system

Optical: systems and elements – Compound lens system – Telescope

Finder optical system

Optical: systems and elements – Lens – With graded refractive index

Finder optical system