Support components, dichroic modules and projectors

Abstract

This invention provides a support member, a dichroic module, and a projector. The support member is used to fix dichroic elements. The support member includes a body, a first fixing part, a second fixing part, a first bearing part, and a second bearing part. The body is a frame with a through hole and has a first end and a second end opposite each other along a first axial direction. The first fixing part and the second fixing part extend outward from the first end and the second end of the body along the first axial direction, respectively. The through hole is located between the first fixing part and the second fixing part. The first bearing part and the second bearing part are disposed on the body and extend from the inner wall of the body toward the through hole, respectively. The first bearing part and the second bearing part each have a first bearing surface and a second bearing surface. The first bearing surface and the second bearing surface are respectively located on a first reference surface and a second reference surface, and there is an included angle between the first reference surface and the second reference surface.

Claims

1. A support for fixing two dichroic elements, the support comprising: A body, which is a frame having a through hole, having a first end and a second end opposite each other along a first axial direction; a first fixing part extending outward from the first end of the body along the first axial direction; a second fixing part extending outward from the second end of the body along the first axial direction, with the through hole located between the first fixing part and the second fixing part; a first bearing part disposed on the body and extending from the inner wall of the body toward the through hole, the first bearing part having a first bearing surface; and a second bearing part disposed on the body and extending from the inner wall of the body toward the through hole, the second bearing part having a second bearing surface, wherein the first bearing surface is located on a first reference surface, the second bearing surface is located on a second reference surface, and there is an included angle between the first reference surface and the second reference surface.

2. The support component as described in claim 1, wherein, The first bearing portion defines a first opening on the first reference surface; the second bearing portion defines a second opening on the second reference surface.

3. The support component as described in claim 2, wherein, The area of ​​the first opening is larger than the area of ​​the second opening.

4. The support component as described in claim 1, wherein, The first connection point is located at the junction of the inner wall near the first end and the first bearing surface, and the second connection point is located at the junction of the inner wall near the first end and the second bearing surface. There is an inner wall height between the first connection point and the second connection point.

5. The support components as described in claim 1, further comprising: A plurality of protrusions are respectively disposed on the body and protrude from the inner wall of the body toward the through hole along a second axis. In the second axis, the first protrusion height of the plurality of protrusions protruding from the inner wall is less than the second protrusion height of the second bearing portion protruding from the inner wall, and the first axis is perpendicular to the second axis.

6. The support component as described in claim 5, wherein, The plurality of protrusions are respectively connected to the first bearing portion, such that the first bearing portion and the plurality of protrusions form a plurality of first filling surfaces connected to the first bearing surface on the first reference surface, and the second bearing portion and the plurality of protrusions form a plurality of second filling surfaces connected to the second bearing surface on the second reference surface.

7. The support component as described in claim 1, wherein, The included angle is between 6.3 and 7.2 degrees.

8. A dichroic module, comprising: Support as described in Request 1; A first dihedral color element is disposed on the support member and abuts against the first abutment surface of the first abutment portion; and a second dihedral color element is disposed on the support member and abuts against the second abutment surface of the second abutment portion.

9. The dichroic module as described in claim 8, wherein, The size of the second dichroic element is smaller than the size of the first dichroic element.

10. The dichroic module as described in claim 8, wherein, The first connection point is located at the junction of the inner wall near the first end and the first bearing surface, and the second connection point is located at the junction of the inner wall near the first end and the second bearing surface. There is an inner wall height between the first connection point and the second connection point, and the inner wall height is greater than or equal to the height of the second dichroic element.

11. The dichroic module as described in claim 8, wherein, The support also includes: a plurality of protrusions, each disposed on the body, and protruding from the inner wall of the body toward the through hole in a second axis. In the second axis, the plurality of protrusions protruding from the inner wall at a first protrusion height is less than the second protrusion height of the second bearing surface protruding from the inner wall, and the first axis is perpendicular to the second axis.

12. The dichroic module as described in claim 11, wherein, The plurality of protrusions are respectively connected to the first bearing portion, such that the first bearing portion and the plurality of protrusions form a plurality of first filling surfaces connected to the first bearing surface on the first reference surface, and the second bearing portion and the plurality of protrusions form a plurality of second filling surfaces connected to the second bearing surface on the second reference surface.

13. The dichroic module as described in claim 12, wherein, The plurality of first adhesive-filling surfaces, the first dihedral element, and the inner wall of the body form a plurality of first adhesive-filling grooves, which are adapted to be filled with an adhesive material to fix the first dihedral element. The plurality of second adhesive-filling surfaces, the second dihedral element, and the inner wall of the body form a plurality of second adhesive-filling grooves, which are adapted to be filled with another adhesive material to fix the second dihedral element.

14. A projector, comprising: An illumination module is adapted to provide an illumination beam, and a light valve module is located in the transmission path of the illumination beam and adapted to convert the illumination beam into an image beam. The illumination module includes: a base having an accommodating space; a plurality of light-emitting elements disposed on the outer side wall of the base, the plurality of light-emitting elements being adapted to provide a first color beam, a second color beam, and a third color beam toward the accommodating space; a support member as described in claim 1, disposed in the accommodating space of the base, the support member being disposed within the base by means of a first fixing portion and a second fixing portion; a first dichroic element disposed on the support member, the first dichroic element abutting against the first abutting surface of the first abutting portion; and a second dichroic element disposed on the support member, the second dichroic element abutting against the second abutting portion; The first dichroic element, the second dichroic element, and the support member form a dichroic module. The dichroic module is located on the transmission path of the first color beam, the second color beam, and the third color beam, so that the first color beam, the second color beam, and the third color beam form the illumination beam through the dichroic module.

15. The projector as described in claim 14, wherein, The plurality of light-emitting elements include a first light-emitting element, a second light-emitting element, and a third light-emitting element, which respectively provide the first color beam, the second color beam, and the third color beam. The first dichroic element is configured to face the third light-emitting element, and the second dichroic element is configured to face the first light-emitting element and the second light-emitting element.

16. The projector as claimed in claim 15, wherein the first dichroic element is adapted to reflect the first color beam and allow the third color beam to pass through, and the second dichroic element is adapted to reflect the second color beam and allow the third color beam to pass through.

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