KR970006453B1 - Preparation process of lenses - Google Patents

Preparation process of lenses Download PDF

Info

Publication number
KR970006453B1
KR970006453B1 KR93017835A KR930017835A KR970006453B1 KR 970006453 B1 KR970006453 B1 KR 970006453B1 KR 93017835 A KR93017835 A KR 93017835A KR 930017835 A KR930017835 A KR 930017835A KR 970006453 B1 KR970006453 B1 KR 970006453B1
Authority
KR
South Korea
Prior art keywords
lens
lenses
frontal
preparation process
filling
Prior art date
Application number
KR93017835A
Other languages
Korean (ko)
Other versions
KR950008097A (en
Inventor
Chang-Ho Jung
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 KR93017835A priority Critical patent/KR970006453B1/en
Publication of KR950008097A publication Critical patent/KR950008097A/en
Application granted granted Critical
Publication of KR970006453B1 publication Critical patent/KR970006453B1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D11/00—Producing optical elements, e.g. lenses or prisms
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor

Abstract

The method regulates the quality of the lens to enable mass-production and reduce the manufacturing cost. The method comprises steps of injection molding frontal and rear plastic lens(1,2) with regular thickness; inserting the frontal and rear lens(1,2) into a body(4) with a gas valve(3); producing the lens(5) by filling up liquified gas into the body(4).
KR93017835A 1993-09-06 1993-09-06 Preparation process of lenses KR970006453B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR93017835A KR970006453B1 (en) 1993-09-06 1993-09-06 Preparation process of lenses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR93017835A KR970006453B1 (en) 1993-09-06 1993-09-06 Preparation process of lenses

Publications (2)

Publication Number Publication Date
KR950008097A KR950008097A (en) 1995-04-17
KR970006453B1 true KR970006453B1 (en) 1997-04-28

Family

ID=19363003

Family Applications (1)

Application Number Title Priority Date Filing Date
KR93017835A KR970006453B1 (en) 1993-09-06 1993-09-06 Preparation process of lenses

Country Status (1)

Country Link
KR (1) KR970006453B1 (en)

Also Published As

Publication number Publication date
KR950008097A (en) 1995-04-17

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Legal Events

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A201 Request for examination
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
LAPS Lapse due to unpaid annual fee