1
Rogers Howard G: Multilayered light polarizer. Polaroid Corporation, October 5, 1971: US3610729 (189 worldwide citation)

This disclosure is directed to a highly efficient linear polarizer which is effective to separate normally incident light thereon into two oppositely polarized components, one of which is transmitted and another component which is reflected.


2
Rogers Howard G: Variable light-filtering device with a redox compound which functions as its own electrolyte. Polaroid Corporation, March 28, 1972: US3652149 (66 worldwide citation)

This invention relates to light filters employing redox compounds that are substantially light-transmitting in their oxidized state and capable of forming a stable colored free radical upon the addition of electrons. The colored free radical formed in response to the flow of electric current renders ...


3
Rogers Howard G: Variable light-filtering device. Polaroid Corporation, November 27, 1973: US3774988 (56 worldwide citation)

This invention relates to light filters employing redox compounds that are substantially light-transmitting in their oxidized state and capable of forming a stable colored free radical upon the addition of electrons. The colored free radical formed in response to the flow of electric current renders ...


4
Rogers Howard G: Variable light-filtering device. Polaroid Corporation, Campbell Sybil A, March 25, 1975: US3873185 (55 worldwide citation)

This invention relates to light filters employing redox compounds that are substantially light-transmitting in their oxidized state and capable of forming a stable colored free radical upon the addition of electrons. The colored free radical formed in response to the flow of electric current renders ...


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Rogers Howard G: Simplified polarized light projection assembly. Polaroid Corporation, December 28, 1971: US3631288 (43 worldwide citation)

An improved assembly for projecting polarized light uses a concave reflecting polarizer which is confocal with a concave metal reflector having a light source at its focus. Light possessing a preferred polarization azimuth is transmitted by the polarizer. Light possessing the orthogonal polarization ...


7
Rogers Howard G, Meneghini Frank, Palumbo Paul S, Foley James W, Arbree Roberta R: Photographic products and processes.. Polaroid, December 12, 1984: EP0127897-A2 (18 worldwide citation)

This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety comprising a 1,3-sulfur-nitrogen group that undergoes cleavage in the presence of silver ion and/or soluble silver complex ...


8
Land Edwin H, Bloom Stanley M, Rogers Howard G: Diffusion transfer films with anti-reflection layers and processes. Polaroid Corporation, Mervis Stanley H, February 19, 1974: US3793022 (11 worldwide citation)

Photographic images, particularly multicolor images, viewed through a transparent support have an anti-reflection coating on the outer surface of said support. The images may be formed by multicolor diffusion transfer processes using dye developers or other image dye-providing materials. In the pref ...


9
Bilofsky Ruth C, Rogers Howard G: Diffusion transfer color film and process. Polaroid Corporation, Mervis Stanley H, December 24, 1974: US3856521 (8 worldwide citation)

Diffusion transfer color processes are described for providing integral negative-positive reflection prints. Discoloration of the 'whites' or highlights of such integral negative-positive reflection prints is minimized by performing the process in the presence of a metal chelating or complexing agen ...


10
Rogers Howard G: Pleochroic spectacles. Polaroid Corporation, November 2, 1971: US3617114 (7 worldwide citation)

Polarized prescription spectacles are furnished with lenses ground and polished from pleochroic crystals. Pleochroic crystals are readily polished to the contours required on ophthalmic lenses. The crystal is oriented with its principal absorption axis horizontal and at right angles to the lens axis ...