Claims
- 1. An apparatus for separating the portions of a mold comprised of at least two mold portions, a first mold portion and a second mold portion, containing therein an ophthalmic lens, said apparatus comprising:
- means for positioning the mold portions containing the ophthalmic lens therebetween by holding either or both mold portions in a fixture,
- a source of intense electromagnetic radiation for which the material of at least one of the mold portions is absorptive sufficient to cause an increase in temperature of said material,
- means for directing said radiation from said source to impinge the outer surface of either one or both of said mold portions,
- means for controlling the duration of said intense radiation impingement upon the mold portions to cause during said duration of radiation impingement, a rise in the temperature of the mold portion so impinged by the radiation from said source.
- 2. The apparatus of claim 1 wherein the source of intense electromagnetic radiation is a laser.
- 3. The apparatus of claim 1 wherein the radiation has a wavelength of between about 1 .mu.m and about 20 .mu.m.
- 4. The apparatus of claim 1 wherein said means for positioning holds said first mold portion, thereby holding the second mold portion and the lens attached thereto, and the source of radiation is directed to impinge the outer surface of said second mold portion.
Parent Case Info
This is a division of application Ser. No. 07/947,218, filed Sep. 18, 1992, now U.S. Pat. No. 5,294,379 which is hereby incorporated by reference.
US Referenced Citations (7)
Divisions (1)
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Number |
Date |
Country |
Parent |
947218 |
Sep 1992 |
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