Method for depositing film on a substrate

The method of fabricating a tinted plastic transparent device having a hardened film coating comprising the steps of:

• emitting particles from a source of material containing the tinting substance;
• ionizing said particles after emission from said source;
• accelerating and directing said particles to said device for implanting a hardened tinted film thereon;
• and
• exposing said device to ultraviolet radiation to develop the desired tint in said film.

The method of developing fire resistant properties for an article having a combustible surface material comprising the steps of:

• placing said article in a vacuum chamber for molecular bombardment therein;
• emitting ionized molecular particles from a source of mineral material to be deposited on the surface of said article;
• further ionizing said particles by field emission after said emission from said source;
• and
• accelerating and directing said particles to said article with sufficient energy to implant a film of deposited mineral material on the surface of said article to a sufficient depth of penetration and thickness to prevent oxidation of the combustible surface material.

The method of implanting a protective film on a substrate comprising:

• utilizing a set of interrelated means for emitting, electric field induced ionizing, accelerating and directing particles of a selected material to a predetermined collector region containing the substrate remote from the emitting means in order to implant the ionized particles in said substrate and deposit a film thereon, the utilizing step including directing an electron beam to a source of said material to cause emission of said material particles with at least some of them being ionized and applying electrical potentials to a plurality of electrodes in said interrelated means which are shaped to develop field emission of charged particles in order to cause said field emission to further ionize the selected material particles;
• maintaining a high vacuum in the vicinity of the set of interrelated means and the collector region;
• and
• controlling the selective application of electrical potentials to the set of interrelated means in order to control the electric field induced ionizing and the implantation and deposition of said film.

The method of implanting ionized particles of a selected material on a specimen surface and building up a film thereon, the method comprising:

• mounting the specimen in a first region within an airtight enclosure;
• mounting a slug of said material in a second region within said enclosure remote from the first region;
• directing a beam of electrons to impinge said slug to cause vaporization and emission of particles therefrom, at least some of which are ionized by said electrons;
• selectively applying potentials to an accelerating and directing structure within said enclosure intermediate the first and second regions to develop a controlled electrostatic field for accelerating the ionized particles toward the specimen and implanting the ionized particles to a predetermined depth therein;
• building up a layer of said material of a predetermined thickness on the implanted surface of the specimen;
• and
• carrying out all of said steps within said enclosure evacuated to a high vacuum.