US 12,681,219 B1Granted

Device capable of achieving different diaphragms and optical imaging module

AssigneeGuangdong Yupin Industrial Co., Ltd

InventorLonglong Xi

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Abstract

The present disclosure discloses a device capable of achieving different diaphragms and an optical imaging module. The device includes a light-shielding carrier strip and two winding and unwinding mechanisms, wherein the carrier strip is provided with a plurality of light-transmitting holes, and the two winding and unwinding mechanisms can drive the carrier strip to move, so that different light-transmitting holes can move to be directly in front of an imaging lens to form diaphragms of different sizes. The present disclosure does not require the use of blades, thereby eliminating the problem of affecting a diaphragm effect due to friction between the blades and ensuring prompt diaphragm response, and sizes of the light-transmitting holes are preset, thereby guaranteeing consistent light throughput.

Claims14

Dependent claims

A device capable of achieving different diaphragms without diaphragm blades, comprising a carrier strip, a first winding and unwinding mechanism, and a second winding and unwinding mechanism, wherein one end of the carrier strip is wound on the first winding and unwinding mechanism, the other end of the carrier strip is wound on the second winding and unwinding mechanism, the carrier strip is made of a light-shielding base material, a plurality of light-transmitting holes of different sizes which are arranged in sequence along a length direction of the carrier strip penetrate through the carrier strip, and the first winding and unwinding mechanism and the second winding and unwinding mechanism can drive the carrier strip to move so as to switch different light-transmitting holes defined on the carrier strip, and both the first winding and unwinding mechanism and the second winding and unwinding mechanism are provided as motors, and rotating shafts of the first winding and unwinding mechanism and the second winding and unwinding mechanism are connected to a tail end of the carrier strip.

An optical imaging module without diaphragm blades, comprising:

a device capable of achieving different diaphragms, comprising a carrier strip, a first winding and unwinding mechanism, and a second winding and unwinding mechanism, wherein one end of the carrier strip is wound on the first winding and unwinding mechanism, the other end of the carrier strip is wound on the second winding and unwinding mechanism, the carrier strip is made of a light-shielding base material, a plurality of light-transmitting holes of different sizes which are arranged in sequence along a length direction of the carrier strip penetrate through the carrier strip, and the first winding and unwinding mechanism and the second winding and unwinding mechanism can drive the carrier strip to move so as to switch different light-transmitting holes defined on the carrier strip, both the first winding and unwinding mechanism and the second winding and unwinding mechanism are provided as motors, and rotating shafts of the first winding and unwinding mechanism and the second winding and unwinding mechanism are connected to a tail end of the carrier strip;
and
an imaging lens positioned on a rear side of the carrier strip, different light-transmitting holes in the carrier strip capable of being switched to be directly in front of the imaging lens one by one.

Dependencies are inferred from the claim text.