Polaroid Corporation

John W Ford, Jr

Howard G Rogers

Aland K Chin

Siamak Forouhar

Vaito K Eloranta

Christy P Thomas

There is disclosed a method and apparatus for easily mounting, holding and facilitating the coating of preselected areas of very thin semiconductor samples. The apparatus includes a base adapted for placement in a coating chamber. The base includes a pair of spaced apart supporting arms onto which a plurality of stacked samples can be loaded. A cover is then slidably positioned over the stacked samples to hold the stacked samples in position during coating. The cover in conjunction with the supporting arms define an open sided cavity to enable the samples to be coated. The apparatus also can be used to hold only one sample.

Semiconductor holding fixture and method

A variable focus lens system comprising an elastomeric, integrally molded, optical member and mounting arrangements therefor by which the axial position and the shape of a central lens part of the optical member can be changed in correspondence with one another to provide the lens system with focusing action over a predetermined range.

Variable focus lens system employing elastomeric lens

There is disclosed an assembly usable in a photographic apparatus for adjustably presetting the gap spacing of a pair of juxtaposed rollers used for spreading film processing fluid between a pair of sheets traveling therebetween. The presetting assembly includes a movable gap setting member having a plurality of surface portions formed thereon, each of which facilitates formation of a different gap which, in turn, facilitates a different processing fluid layer thickness. The member is movable in a manner which allows different ones of the surface portions to operatively cooperate with the rollers so as to establish correspondingly different gap spacings.

Growing community of inventors

Framingham, MA, United States of America

John W Ford, Jr