KR960009156B1 - Apparatus for preventing optical materials adhering to the optical material mould - Google Patents

Apparatus for preventing optical materials adhering to the optical material mould Download PDF

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Publication number
KR960009156B1
KR960009156B1 KR93012742A KR930012742A KR960009156B1 KR 960009156 B1 KR960009156 B1 KR 960009156B1 KR 93012742 A KR93012742 A KR 93012742A KR 930012742 A KR930012742 A KR 930012742A KR 960009156 B1 KR960009156 B1 KR 960009156B1
Authority
KR
South Korea
Prior art keywords
ring
transportable
stepped hole
ring member
rings
Prior art date
Application number
KR93012742A
Other languages
Korean (ko)
Other versions
KR950003193A (en
Inventor
Je-Suk Kim
Original Assignee
Lg Electronics Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lg Electronics Inc filed Critical Lg Electronics Inc
Priority to KR93012742A priority Critical patent/KR960009156B1/en
Publication of KR950003193A publication Critical patent/KR950003193A/en
Application granted granted Critical
Publication of KR960009156B1 publication Critical patent/KR960009156B1/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/02—Re-forming glass sheets
    • C03B23/023—Re-forming glass sheets by bending
    • C03B23/03—Re-forming glass sheets by bending by press-bending between shaping moulds
    • C03B23/0302—Re-forming glass sheets by bending by press-bending between shaping moulds between opposing full-face shaping moulds
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B23/00—Re-forming shaped glass
    • C03B23/0093—Tools and machines specially adapted for re-forming shaped glass articles in general, e.g. chucks
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P40/00—Technologies relating to the processing of minerals
    • Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
    • Y02P40/57—Improving the yield, e-g- reduction of reject rates

Abstract

A high precision optical element(21) such as glass lenses is hot pressed in a mould cavity formed by a transportable ring member(30) and a pair of upper and lower contour rams(11, 12). The transportable ring member comprises an upper ring(1) having a stepped hole in its lower portion and a lower ring(2) having a stepped hole in its upper portion. The upper portion of the lower ring is inserted into the inside stepped hole of the upper ring whose coefficient of thermal expansion is larger than that of the lower ring. The two rings are tightly fitted to each other when the transportable ring member containing a glass preform is pre-heated together. An annular ring groove which is formed by the stepped surfaces of the lower and upper rings, is useful in making a mould fin to prevent the pressed lens from sticking to the upper ram.
KR93012742A 1993-07-07 1993-07-07 Apparatus for preventing optical materials adhering to the optical material mould KR960009156B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93012742A KR960009156B1 (en) 1993-07-07 1993-07-07 Apparatus for preventing optical materials adhering to the optical material mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93012742A KR960009156B1 (en) 1993-07-07 1993-07-07 Apparatus for preventing optical materials adhering to the optical material mould

Publications (2)

Publication Number Publication Date
KR950003193A KR950003193A (en) 1995-02-16
KR960009156B1 true KR960009156B1 (en) 1996-07-16

Family

ID=19358884

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93012742A KR960009156B1 (en) 1993-07-07 1993-07-07 Apparatus for preventing optical materials adhering to the optical material mould

Country Status (1)

Country Link
KR (1) KR960009156B1 (en)

Also Published As

Publication number Publication date
KR950003193A (en) 1995-02-16

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E701 Decision to grant or registration of patent right
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