Optical fiber holder

• US 10,921,527 B2
• Filed: 07/28/2017
• Issued: 02/16/2021
• Est. Priority Date: 09/09/2016
• Status: Active Grant

• Current Assignee: SEI Optifrontier Co., Ltd.
• Original Assignee: SEI Optifrontier Co., Ltd.
• Inventors: Sato, Ryuichiro, Takayanagi, Hiroshi, Nakamura, Hiroshi
• Primary Examiner(s): Bedtelyon, John
• Application Number:
  US16/330,800
• Publication Number:
  US 20190235173A1
• Time in Patent Office: 1,299 Days
• CPC Class Codes: G02B 6/24 Coupling light guides
• CPC Class Codes: G02B 6/2555 Alignment or adjustment devices for aligning prior to splicing
• CPC Class Codes: G02B 6/3616 Holders, macro size fixtures for mechanically holding or positioning fibres, e.g. on an optical bench supporting carriers of a microbench type G02B6/3648; micromanipulators B25J7/00; cassettes, bobbins G02B6/4439
• CPC Class Codes: G02B 6/3636 the mechanical coupling means being grooves G02B6/3652 takes precedence
• CPC Class Codes: G02B 6/3803 Adjustment or alignment devices for alignment prior to splicing

Abstract

Provided is an optical fiber holder comprising a holder body and a cover. The holder body has an accommodation section capable of accommodating a plurality of optical fibers. The holder body or the cover has at least one ridge which can be disposed within the accommodation section. When the cover is closed over the holder body, a plurality of sections which can parallelly accommodate the plurality of optical fibers are parallelly formed by the inner surface of the accommodation section, the lower surface of the cover, and the ridge.

Claims

1. An optical fiber holder comprising:

a holder body;

a first lid; and

a second lid, wherein

the holder body includes a housing portion that is configured to house a plurality of optical fibers,

the holder body includes at least one linear protrusion along a longitudinal direction of the holder body in the housing portion,

the housing portion includes a plurality of grooves that include a constant groove width and that is configured to house the plurality of optical fibers in parallel respectively between the protrusion and an inner surface of the housing portion,

the plurality of optical fibers are configured to be held in parallel respectively in the plurality of grooves in a state where the first lid is closed with respect to the holder body,

the plurality of optical fibers are configured to be housed in a movable state where the plurality of optical fibers are movable in parallel respectively in the plurality of grooves, in a state where the second lid is closed with respect to the holder body, and

the first lid is provided in a front side end of the holder body along the longitudinal direction and the second lid is provided in a rear side end of the holder body along the longitudinal direction.

2. The optical fiber holder according to claim 1, wherein a height of the at least one protrusion is 0.15 mm or above and 0.3 mm or below.

3. The optical fiber holder according to claim 1, further comprising:

a third lid, wherein

the housing portion includes wide grooves where the at least one linear protrusion is not provided and is at a covered position in a state where the third lid is closed with respect to the holder body,

the third lid is provided in the rear side end of the holder body behind the second lid along the longitudinal direction.

4. An optical fiber holder comprising:

a holder body;

a first lid; and

a second lid, wherein

the holder body includes a housing portion that is configured to house a plurality of optical fibers,

the holder body or the first lid includes at least one protrusion along a longitudinal direction of the holder body in the housing portion or the first lid that is capable of being disposed in the housing portion,

a plurality of sections are formed in parallel such that the plurality of sections are configured to house the plurality of optical fibers in parallel respectively by an inner surface of the housing portion, a lower surface of the first lid, and the at least one protrusion in a state where the first lid is closed with respect to the holder body,

the plurality of optical fibers housed in the housing portion and inserted into the section are configured to be held in the housing portion in a state where the second lid is closed with respect to the holder body, and

the first lid is provided in a front side end of the holder body along the longitudinal direction and the second lid is provided in the front side end of the holder body along the longitudinal direction and provided in a rear side end of the holder body along the longitudinal direction.

5. The optical fiber holder according to claim 4, wherein a width of the at least one protrusion is 0.17 mm or above and 0.27 mm or below.

6. The optical fiber holder according to claim 4, wherein a distance between centers of adjacent sections is 0.95 mm or above and 1.05 mm or below.

7. The optical fiber holder according to claim 4, wherein

the holder body includes a section outer protrusion that is provided to be continuous from the at least one protrusion on one side of the housing portion outside the section,

widening side surfaces are provided on two both side surfaces in an inner side of the housing portion on one side outside the section such that the widening side surfaces are respectively continuous from side surfaces of sections, among the plurality of sections, on both side surfaces in the inner side of the housing portion, and

the widening side surfaces have a shape in which a space between the widening side surfaces is extended along a longitudinal direction of the housing portion as being away from the section.

8. The optical fiber holder according to claim 4, comprising:

a plurality of the protrusions, wherein

the at least one protrusion is one of the plurality of protrusions,

the holder body includes, on one side outside the section of the housing portion, a plurality of section outer protrusions provided so as to be continuous from the plurality of the protrusions respectively, and

the plurality of section outer protrusions have a shape in which a space between adjacent section outer protrusions is extended along a longitudinal direction of the housing portion as being away from the section.

9. The optical fiber holder according claim 4, wherein the first lid is provided with a tapered surface where the lower surface is recessed on one side end of the section in a longitudinal direction.