Spring clamp for optics

Patent metadata

Field	Value
Publication number	US-11056803-B2
Application number	US-201715702250-A
Country	US
Kind code	B2
Filing date	Sep 12, 2017
Priority date	Sep 12, 2017
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

An optical device may include an optic disposed in an optical path. The optical device may include a mount to dispose the optic in the optical path. The optical device may include a plurality of spring clamps to attach the optic to the mount. The spring clamp, of the plurality of spring clamps, may include a body, a spring, and a screw. The screw may be to attach to the mount and to compress the spring. The spring may be to dispose a leading edge of the body against the optic. The spring clamp may be to maintain the optic in the optical path for a thermal cycle of at least between approximately −50° C. and approximately 130° C.

First claim

What is claimed is:

1. A clamp, comprising:
a body,
the body including:
a leading edge to clamp an optic to a mount; and
an opening to receive a spring and a screw,
the leading edge including a surface having at least a portion in contact with the optic and the portion in contact with the optic being positioned laterally adjacent to the opening,
the screw to longitudinally compress the spring, and
the screw to cause the spring to apply a force to the leading edge to clamp the optic to the mount,
where the mount, the body, and the optic are associated with at least two coefficient of thermal expansion (CTE) values that differ by at least 10×10{circumflex over ( )}−6/Kelvin (K).

2. The clamp of claim 1 , wherein the leading edge is to clamp optics of at least a threshold size,
the threshold size being greater than at least one of:
a 0.5 millimeter (mm) diameter,
a 1 mm diameter,
a 2 mm diameter,
a 5 mm diameter,
a 10 mm diameter,
a 20 mm diameter,
a 0.25 mm thickness,
a 0.5 mm thickness,
a 1 mm thickness, or
a 2 mm thickness.

3. The clamp of claim 1 , where the force is decoupled from a torque applied to the screw to attach the clamp to the mount.

4. The clamp of claim 1 , where the spring is associated with a spring constant of between approximately 3000 Newtons/meter (N/m) and approximately 8000 N/m.

5. The clamp of claim 1 , where the leading edge is to clamp at least one of:
a lens,
a mirror,
a grating,
a crystal,
a filter, or
an optical coating.

6. An optical system, comprising:
a mount;
a plurality of clamps,
where the plurality of clamps include at least one spring clamp,
where the at least one spring clamp includes:
a body including a leading edge to clamp an optic to the mount,
 the leading edge including a surface having at least a portion in contact with the optic and the portion in contact with the optic being positioned laterally adjacent to an opening of the body,
a spring compressed longitudinally in the opening of the body, and
an attachment piece disposed into the opening of the body; and

the optic attached to the mount by the plurality of clamps,
where the optic has a diameter of greater than approximately 5 millimeters (mm).

7. The optical system of claim 6 , where the plurality of clamps includes at least one other clamp,
the at least one other clamp not being a spring clamp.

8. The optical system of claim 6 , where the mount, at least one clamp of the plurality of clamps, and the optic have at least two coefficient of thermal expansion (CTE) values; and
where a difference between two of the at least two CTE values is greater than at least one of:
1×10{circumflex over ( )}−6/Kelvin (K),
5×10{circumflex over ( )}−6/K,
10×10{circumflex over ( )}−6/K, or
17×10{circumflex over ( )}−6/K.

9. The optical system of claim 6 , where the mount has a coefficient of thermal expansion (CTE) value greater than at least one of:
5×10{circumflex over ( )}−6/Kelvin (K),
11×10{circumflex over ( )}−6/K,
17×10{circumflex over ( )}−6/K, or
18×10{circumflex over ( )}−6/K.

10. The optical system of claim 6 , where the plurality of clamps is 3 clamps.

11. The optical system of claim 6 , where each of the plurality of clamps is a spring clamp.

12. The optical system of claim 6 , where the optic has a thickness of at least 0.6 mm.

13. The optical system of claim 6 , where the mount includes a plurality of openings,
the optic being disposed in a first opening of the plurality of openings; and
a particular attachment piece corresponding to a spring clamp of the at least one spring clamp being disposed into a second opening of the plurality of openings.

14. The optical system of claim 6 , where the attachment piece is at least one of:
a fastener,
a nail,
a bolt,
a nut,
a rivet,
a washer,
a screw, or
a combination thereof.

15. The optical system of claim 6 , where the optical system is configured to maintain an alignment of the optic with an optical path for a thermal cycle of at least one of:
between approximately −100 degrees Celsius (° C.) and approximately 200° C.,
between approximately −50° C. and approximately 150° C.,
between approximately −25° C. and approximately 100° C.,
between approximately 0° C. and approximately 55° C., or
between approximately 10° C. and approximately 40° C.

16. The optical system of claim 6 , where the optical system is configured to maintain an alignment of the optic with an optical path for a g-force applied to the mount of at least one of:
greater than approximately 10 g-forces (G),
greater than approximately 5 G,
greater than approximately 2 G, or
greater than approximately 1 G.

17. An optical device, comprising:
an optic disposed in an optical path;
a mount to dispose the optic in the optical path; and
a plurality of spring clamps to attach the optic to the mount,
a spring clamp, of the plurality of spring clamps, including a body, a spring, and a screw,
the body including a leading edge to clamp the optic to the mount,
the leading edge including a surface having at least a portion in contact with the optic and the portion in contact with the optic being positioned laterally adjacent to an opening of the body,

the screw to attach to the mount and to longitudinally compress the spring,
the spring to dispose a leading edge of the body against the optic, and
the spring clamp to maintain the optic in the optical path for a thermal cycle of at least between approximately −50° C. and approximately 130° C.

18. The optical device of claim 17 , where the optical device comprises at least one of:
a laser system,
a telescope,
a medical device,
a sensor device,
a measurement device,
an optical communication system, or
a manufacturing system.

19. The optical device of claim 17 , where the spring clamp is associated with a length of less than approximately 10 millimeters (mm), a width of less than approximately 4 mm, and a height of less than approximately 5 mm.

20. The optical device of claim 17 , further comprising a laser to provide abeam directed to the optic via the optical path.

21. The optical system of claim 6 , wherein the attachment piece is a screw disposed in the opening of the body,
the screw being configured to compress the spring against the body to cause the leading edge to be compressed against the optic,
the screw being disposed longitudinally through the spring,
the screw including a threaded portion aligned with an opening in the mount, and
the opening in the mount being longitudinally adjacent to the opening in the body.

Assignees

• Lumentum Operations Llc

Inventors

• Yin Yong
• Billerbeck Bryed
• Brunner Felix
• Netzer Yves

Classifications

• B25B5/003 Primary

  Combinations of clamps · CPC title

• B25B5/00

  Clamps (for holding or positioning work for welding, soldering, or cutting by applying heat locally B23K37/04) · CPC title

• B25B5/14

  Clamps for work of special profile {(using chains or strips B25B1/205)} · CPC title

• B25B5/10

  using screws · CPC title

• H01R9/18

  Fastening by means of screw or nut · CPC title