Patent ID: 11947090
Assignee: ASIA OPTICAL CO., INC.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 5:
6. The lens module as claimed in claim 5, wherein the lens module satisfies at least one of following conditions:

0.8<(SDY+EPDY)/PH<2;

0.5<(SDX+EPDX)/PL<2.2;

2<(SDX/SDY)+(EPDX/EPDY)+(PL/PH)<6.5;

where SDX is a maximum dimension of the variable hole measured across the optical axis, SDY is a minimum dimension of the variable hole measured across the optical axis, EPDX is a maximum dimension of the entrance pupil measured across the optical axis, EPDY is a minimum dimension of the entrance pupil measured across the optical axis, PL is the length of the reflective element, and PH is a height of the reflective element that equals a length of a side of the emitting surface wherein the side of the emitting surface is perpendicular to the incident surface.