Process of making a casting die for forming a segmented mirror

Details Process of making a casting die for forming a segmented mirror Process of making a casting die for forming a segmented mirror

1987-08-03

1988-09-13

Thurlow, Jeffery

Plastic and nonmetallic article shaping or treating: processes

Optical article shaping or treating

Including step of mold making

21912167, 21912172, 264 19, 264152, 264226, 264227, 350320, B23K 2602, B29C 3340, B29D 1100, G02B 508

Patent

active

047708247

ABSTRACT:
A casting die, for forming a segmented mirror, is formed by the steps including:

REFERENCES:
patent: 3628850 (1971-12-01), Yamazaki et al.
patent: 3739455 (1973-06-01), Alvarez
patent: 3829536 (1974-08-01), Alvarez
patent: 4368951 (1983-01-01), Blom
patent: 4470665 (1984-09-01), Blom
patent: 4560256 (1985-12-01), Blom
patent: 4609266 (1986-09-01), Blom
patent: 4641933 (1987-02-01), Blom
patent: 4663514 (1987-05-01), Blom
patent: 4678280 (1987-07-01), Blom

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