G02B9/54 - CPC Classification Index

ClassID:

174470 ⎘

G02B9/54 - CPC Classification

Classification description:

Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - having four components only arranged + -- + the front + component being compound

Recent Application in this class:

20180239110

2018-08-23

Optical imaging lens and electronic device comprising the same

20170277022

2017-09-28

Rear converter lens and imaging apparatus

20170276906

2017-09-28

Optical imaging lens and electronic device comprising the same

20100302652

2010-12-02

Imaging lens, imaging device, and portable terminal