Abstract: A dielectric multilayer film-incorporated glass plate is disclosed that includes a glass plate and a dielectric multilayer film. The glass plate includes a corner surface located between at least one main surface and a side surface. The dielectric multilayer film includes a main surface covering portion that covers the main surface of the glass plate and a corner surface covering portion that covers the corner surface of the glass plate.

Abstract: Provided are: a band-pass filter for which filter characteristics can be improved; and a manufacturing method therefor. A band-pass filter 11, which allows light of a specific wavelength region to pass, includes: a substrate 12 which has light transmitting properties; a first dielectric multilayer film 13 that is provided on a first main surface S1 of the substrate 12; and a second dielectric multilayer film 14 that is provided on a second main surface S2 which is opposite the first main surface S1. The first dielectric multilayer film 13 contains a hydrogenated silicon layer. The second dielectric multilayer film 14 contains a hydrogenated silicon layer.

Abstract: A dielectric multilayer film-incorporated glass plate is disclosed that includes a glass plate and a dielectric multilayer film. The glass plate includes a corner surface located between at least one main surface and a side surface. The dielectric multilayer film includes a main surface covering portion that covers the main surface of the glass plate and a corner surface covering portion that covers the corner surface of the glass plate.

Abstract: A lens assembly comprises a lens group M and a lens frame 1 for retaining the lens group M. In this lens assembly, the lens frame 1 has an entire circumference support 2b for supporting the rim on the subject side, of each lens M, across the entire circumference thereof, and an end face support 2a for supporting the lens M on the image side. Each lens M comprises a chamfer 3b formed at a rim of a lens surface on the subject side across the entire circumference thereof, and the entire circumference support 2b supports the chamfer 3b such that the entire circumference support 2b is continuous with the lens surface at substantially the same radius of curvature with the lens surface. According to the present invention, there is provided a lens assembly which can reduce size and cost and has stable lens retaining ability.

Abstract: A lens assembly comprises a lens group M and a lens frame 1 for retaining the lens group M. In this lens assembly, the lens frame 1 has an entire circumference support 2b for supporting the rim on the subject side, of each lens M, across the entire circumference thereof, and an end face support 2a for supporting the lens M on the image side. Each lens M comprises a chamfer 3b formed at a rim of a lens surface on the subject side across the entire circumference thereof, and the entire circumference support 2b supports the chamfer 3b such that the entire circumference support 2b is continuous with the lens surface at substantially the same radius of curvature with the lens surface. According to the present invention, there is provided a lens assembly which can reduce size and cost and has stable lens retaining ability.