Home

Primary Examiner: Wilbur, Maynard R.
Assistant Examiner: Buczinski, S. C.
Attorney: Bruestle; Glenn H., Morris; Birgit E.

Next ten patents ordered by date:

Fogged, direct positive silver halide emulsion containing a nitro-substituted fluorene desensitizer
Spectral sensitization of direct-positive silver halide emulsions
Photographic light-sensitive and heat developable material
Heat developable light-sensitive materials
Spectrally sensitized silver halide photographic emulsion
Polishes containing wax-anhydride compounds
Carbon paper inks containing wax-anhydride compounds
Refractory heat insulating materials
High strength, water resistant silicate foam
Thermal shock resistant asbestos-cement compositions and their preparation

Translate:
En
De
Es
Fr
It
Pt
Ja
Ko
Zh

Title: Photochromic lithium niobate and method for preparing same

Abstract: Photochromic lithium niobate crystals containing iron and either manganese or copper are useful for recording phase holograms in the photosensitive state of the crystals, which holograms can be permanently fixed and read out without loss in the quality of the image obtained therefrom over extended periods.

Do you think this is a good invention? Vote now:

Votes so far: For:(0) Against:(0)
Other info:

Inventors: Phillips, William (Princeton, NJ, US)
Staebler, David Lloyd (Trenton, NJ, US)

Application Number: 417385
Filing Date: 1973-11-19
Publication_date: 1976-01-20
Assignee: RCA Corporation (New York, NY)
Primary Class(es): 430/2 359/7
Other Classes:
US Patent Ref:

3703328	Nov, 1972	Glass et al.	350/3.
3773400	Nov, 1973	Amodei et al.	350/3.

Other Refs: Other References: Phillips et al., RCA Review, Vol. 33, No. 1, 3-1972, pp. 94-109.
Newman et al., Physical Review, Vol. 102, No. 3, 5-1956, pp. 613-616.
Amodei et al., Appl. Physics Letters, Vol. 18, No. 11, 6-1971, pp. 507-509.
Shulman et al., Physical Review, Vol. 102, No. 6, 6-1956, pp. 1455-1457.