Device capable of achieving different diaphragms and optical imaging module
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.
1 . 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.
2 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the inner hole sizes of the light-transmitting holes in the carrier strip increase or decrease gradually along the length direction of the carrier strip.
3 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the light-transmitting holes in the carrier strip are provided as circular holes, square holes, polygonal holes or annular toothed holes.
4 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the light-transmitting holes in the carrier strip are arranged in a centrally equidistant, edge-equidistant, or non-equidistant manner.
5 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the inner hole sizes of the light-transmitting holes in the carrier strip are set to be 0.2 mm to 75 mm.
6 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the light-transmitting holes in the carrier strip are made by means of punching or laser cutting.
7 . The device capable of achieving different diaphragms without diaphragm blades according to claim 1 , wherein the edges of the light-transmitting holes in the carrier strip are provided with beveled chamfers.
8 . 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.
9 . The optical imaging module without diaphragm blades according to claim 8 , wherein the inner hole sizes of the light-transmitting holes in the carrier strip increase or decrease gradually along the length direction of the carrier strip.
10 . The optical imaging module without diaphragm blades according to claim 8 , wherein the light-transmitting holes in the carrier strip are provided as circular holes, square holes, polygonal holes or annular toothed holes.
11 . The optical imaging module without diaphragm blades according to claim 8 , wherein the light-transmitting holes in the carrier strip are arranged in a centrally equidistant, edge-equidistant, or non-equidistant manner.
12 . The optical imaging module without diaphragm blades according to claim 8 , wherein the inner hole sizes of the light-transmitting holes in the carrier strip are set to be 0.2 mm to 75 mm.
13 . The optical imaging module without diaphragm blades according to claim 8 , wherein the light-transmitting holes in the carrier strip are made by means of punching or laser cutting.
14 . The optical imaging module without diaphragm blades according to claim 8 , wherein the edges of the light-transmitting holes in the carrier strip are provided with beveled chamfers.