Curable organometallic composition, organometallic polymer material and optical component

Abstract

A curable organometallic composition containing an organometallic polymer having an -M-O-M- bond (M denotes a metal atom) and an aryl group, and a fluorene-based compound having an acryloyl or methacryloyl group, an organometallic polymer obtained by curing the composition and an optical component using the material.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic sectional view which shows an exemplary process by which a composite aspherical lens, as one embodiment of the optical component of the present invention, is fabricated;

FIG. 2 is a schematic view which shows an apparatus for measurement of spherical aberration of the composite aspherical lens;

FIG. 3 shows mesh pattern images when observed using a glass spherical lens and the composite aspherical lens;

FIG. 4 is a graph which shows the organometallic polymer loading vs. volumetric cure shrinkage of the composition in Example 1 in accordance with the present invention;

FIG. 5 is a graph which shows the loading of the organometallic polymer in the composition vs. refractive index of the photocured composition in Example 1 in accordance with the present invention;

FIG. 6 is a graph which shows the Abbe number vs. refractive index at wavelength 589 nm of the organometallic polymer material in Example 1 in accordance with the present invention;

FIG. 7 is a graph which shows the organometallic polymer loading in the composition vs. temperature coefficient of refractive index of the cured composition in Example 1 in accordance with the present invention;

FIG. 8 is a schematic sectional view which shows an example of a conventional camera module;

FIG. 9 is a schematic sectional view which shows an embodiment of a camera module in accordance with the present invention;

FIG. 10 is a sectional view which shows a folding mobile telephone;

FIG. 11 is a sectional view which shows an embodiment of an optical waveguide in accordance with the present invention;

FIG. 12 is a sectional view which shows another embodiment of an optical waveguide in accordance with the present invention;

FIG. 13 is a sectional view which shows a further embodiment of an optical waveguide in accordance with the present invention;

FIG. 14 is a schematic sectional view which shows an example of a liquid crystal projector;

FIG. 15 is a schematic sectional view which shows an embodiment of a liquid crystal projector in accordance with the present invention;

FIG. 16 is a schematic sectional view which shows another embodiment of a liquid crystal projector in accordance with the present invention;

FIG. 17 is a sectional view which shows an embodiment of a composite aspherical lens in accordance with the present invention;

FIG. 18 is a schematic sectional view which shows an apparatus used to perform a thermal shock test in Example 14 in accordance with the present invention;

FIG. 19 is a graph which shows time intervals at which a sample is cyclically moved between a constant-temperature chamber at 85° C. and a constant-temperature chamber at −40° C. in the thermal shock test; and

FIG. 20 is a schematic sectional view which shows an embodiment of an optical transmitter and receiver module in accordance with the present invention.

Claims

1. A curable organometallic composition characterized in that it contains an organometallic polymer having an -M-O-M- bond (M denotes a metal atom) and an aryl group, and a fluorene-based compound having an acryloyl or methacryloyl group.

2. The curable organometallic composition as recited in claim 1, characterized in that it further contains an (meth)acrylate having two or more functional groups.

3. The curable organometallic composition as recited in claim 1, characterized in that it further contains an (meth)acrylate having one or more aryl groups.

4. The curable organometallic composition as recited in claim 2, characterized in that it further contains an aromatic urethane acrylate oligomer.

5. The curable organometallic composition as recited in claim 1, characterized in that it further contains a metal alkoxide having only one hydrolyzable group and/or its hydrolysate.

6. The curable organometallic composition as recited in claim 1, characterized in that it further contains an organic acid anhydride and/or organic acid.

7. The curable organometallic composition as recited in claim 1, characterized in that said metal atom M in the organometallic polymer is at least one of Si, Nb, Ti and Zr.

8. An organometallic polymer material characterized in that it is obtained by polymerizing the curable organometallic composition as recited in claim 1.

9. An optical component characterized in that it has a light transmissive region formed using the organometallic polymer material as recited in claim 8.

10. The optical component as recited in claim 9, characterized in that it is a composite aspherical lens fabricated by forming said light transmissive region on a translucent member.

11. An optical device characterized in that it includes the optical component as recited in claim 9.