Patent · US Active

End structure for endoscope

US9915818B2 · kind B2 · utility

1Cited by

1References

16Claims

0Family size

Assignee

Himax Technologies Limited · TW

Inventors

Han-Ching Lin · Tainan, TW
Yin-Dong Lu · Tainan, TW

Key dates

Filing date	Mar 18, 2015
Grant date	Mar 13, 2018
Priority date	—
Expiry date	Jul 3, 2035

Classification

Technology area (CPC G)Physics
CPC primaryG02B13/0025
WIPO fieldOptics
WIPO sectorInstruments

Abstract

An imaging lens system includes a lens and a transparent plate. The lens is disposed between an object and a sensor, and the lens includes a flat surface facing the object and an aspheric surface facing the sensor. The transparent plate is connected to the lens and disposed between the object and the lens. An abbe number of the lens is in a range from 30 to 50, an abbe number of the transparent plate is in a range from 40 to 60, and an effective focal length (EFL) of the imaging lens system is in a range from about 0.3 millimeters to about 0.4 millimeters.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.