Lighting source and endoscope
View Patent ↗A lighting source and an endoscope are provided, and the lighting source is used for the endoscope. The lighting source includes a light-emitting diode (LED) chip and a substrate; the LED chip is arranged on and fixedly connected to the substrate, and is packaged into the lighting source; and the lighting source is circular ring-shaped or arc-shaped. The endoscope includes an endoscope tube; an objective lens, located at one end of the endoscope and at least partially located inside the endoscope tube; and the lighting source.
1 . An endoscope, comprising:
an endoscope tube;
an objective lens, located at one end of the endoscope and at least partially located inside the endoscope tube; and
a lighting source, located at the end of the endoscope tube where the objective lens is provided,
wherein the lighting source comprises a light-emitting diode (LED) chip and a substrate;
the LED chip is arranged on and fixedly connected to the substrate, and is packaged into the lighting source; and
the lighting source is circular ring-shaped or arc-shaped,
wherein the objective lens comprises an inner surface,
the inner surface faces an end of the endoscope tube opposite to the end where the objective lens is provided, and an edge of the inner surface is provided with a groove for mounting the lighting source.
2 . The endoscope as claimed in claim 1 , wherein at least two LED chips are arranged on the substrate, and the at least two LED chips and the substrate are packaged into a circular ring-shaped or arc-shaped package.
3 . The endoscope as claimed in claim 2 , wherein the lighting source further comprises a wire connected between the at least two LED chips,
the wire is routed on the substrate to connect the LED chips, and is packaged in the package.
4 . The endoscope as claimed in claim 1 , wherein the substrate is coated with a fluorescent glue for packaging.
5 . The endoscope as claimed in claim 1 , wherein a circuit connection mode between the LED chips is a series connection mode, a parallel connection mode or a series-parallel hybrid connection mode.
6 . The endoscope as claimed in claim 5 , wherein the circuit connection mode between the LED chips comprises: the LED chips comprise a plurality of LED chipsets, the LED chips in each of the plurality of LED chipsets are connected in series, and the plurality of LED chipsets are connected in parallel; or,
the LED chips comprise a plurality of LED chipsets, the LED chips in each of the plurality of LED chipsets are connected in parallel, and the plurality of LED chipsets are connected in series.
7 . The endoscope as claimed in claim 1 , wherein, when viewed from an axial direction of the endoscope tube, the groove is circular ring-shaped or arc-shaped to accommodate the lighting source.
8 . The endoscope as claimed in claim 1 , wherein the groove is delimited by a partial surface of the objective lens and a partial surface of an inner wall of the endoscope tube, and a side wall of the groove opposite to the endoscope tube is coated with a light-shielding material.
9 . The endoscope as claimed in claim 7 , wherein the groove is circular ring-shaped;
at least one arc-shaped lighting source is mounted in the groove; or,
one circular ring-shaped lighting source is mounted in the groove.
10 . The endoscope as claimed in claim 9 , wherein a plurality of arc-shaped lighting sources are uniformly arranged in the groove.
11 . The endoscope as claimed in claim 7 , wherein the groove is arc-shaped; and
at least one arc-shaped lighting source is mounted in the groove.
12 . The endoscope as claimed in claim 1 , wherein the edge of the inner surface of the objective lens is uniformly provided with a plurality of arc-shaped grooves, and one arc-shaped lighting source is mounted in each of the plurality of arc-shaped grooves.
13 . The endoscope as claimed in claim 1 , wherein the endoscope is a disposable rigid endoscope or an electronic endoscope.
14 . The endoscope as claimed in claim 1 , wherein a minimum inner diameter of the endoscope tube is 3.8 mm, a minimum outer diameter of the endoscope tube is 4.0 mm, and a minimum dimension of the lighting source along a radial direction of the endoscope tube is 0.5 mm.
15 . A disposable rigid endoscope, comprising an endoscope tube;
an objective lens, located at one end of the endoscope and at least partially located inside the endoscope tube; and
a lighting source, located at the end of the endoscope tube where the objective lens is provided,
wherein the lighting source comprises a light-emitting diode (LED) chip and a substrate;
the LED chip is arranged on and fixedly connected to the substrate, and is packaged into the lighting source; and
the lighting source is circular ring-shaped or arc-shaped,
wherein the LED chip is a semiconductor die,
wherein at least two LED chips are arranged on the substrate with a wire connected between the at least two LED chips, and the at least two LED chips, the wire and the substrate are packaged into a circular ring-shaped or arc-shaped package.