Method for manufacturing lens cap for optical module
AssigneeHon Hai Precision Ind. Co., Ltd.
InventorNan Tsung Huang
Life of this patent
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Abstract
Disclosed is a method for manufacturing a lens cap (20) for an optical module. The lens cap includes a housing (21) and an optical lens (22). The housing includes a sidewall (23) and a top wall (24) connecting with the sidewall. The top wall has an inclined portion (241) defining a through-hole (243) therein, and the through-hole includes a window (244) and an injection void (245) connecting with the window. The optical lens is made of optical plastic and is formed in the through-hole using insert-molding. The optical lens transmits and reflects light.
Claims8
A method for manufacture of a lens cap for an optical module, comprising the steps of:
- (1) providing a housing including an inclined portion on a wall thereof, the inclined portion defining a window extending through the wall and an entry for injection of optical material, the entry connecting with the window;
- (2) providing an insert-molding mold corresponding to the housing, placing the housing in the mold and aligning an injection entry of the mold with the entry of the housing;
- (3) providing an optical plastic and injecting the melted plastic into the mold;
- and
- (4) extracting the housing from the mold after the injected optical plastic is cooled and cured.
A method for manufacture of a lens cap for an optical module, comprising the steps of:
- (1) providing a housing with a top portion defining therein a through hole including a window and an entry both extending therethrough and laterally communicating with each other;
- (2) insert-molding the housing to have the through hole filled with melted plastic;
- and
- (3) keeping the solidified plastic flush with two opposite surfaces of the top portion;
- wherein
- said entry is smaller than and elevated above said window.
Dependencies are inferred from the claim text.