Abstract: A retainer lens of shape and dimensions configured to be releasably secured in the front opening of a face plate or helmet has a window opening configured for positioning in front of the eyes of a wearer of the face plate or helmet. An outer protective cover is configured to be secured over the window opening by means of scrap-book like frame corners located on the front surface of the retainer lens and spaced outwardly from respective corners of the window opening. The corners of the outer protective cover are releasably engaged with respective frame corners, so that the cover can be removed from the outside of the face plate as needed for replacement with a new outer protective cover, simply by removing the corners of the current outer protective cover from the respective frame corners, and then engaging a new outer protective cover into the frame corners.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The lens assembly may be releasably secured in the face plate opening and the second lens is interchangeable with sets of lenses having different properties such as lens shade. The retainer assembly has a back cover and a gasket or spacer between the back cover and second lens to allow second lenses of different depths to be secured in the assembly.

Abstract: A retainer lens of shape and dimensions configured to be releasably secured in the front opening of a face plate or helmet has a window opening configured for positioning in front of the eyes of a wearer of the face plate or helmet. An outer protective cover is configured to be secured over the window opening by means of scrap-book like frame corners located on the front surface of the retainer lens and spaced outwardly from respective corners of the window opening. The corners of the outer protective cover are releasably engaged with respective frame corners, so that the cover can be removed from the outside of the face plate as needed for replacement with a new outer protective cover, simply by removing the corners of the current outer protective cover from the respective frame corners, and then engaging a new outer protective cover into the frame corners.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The lens assembly may be releasably secured in the face plate opening and the second lens is interchangeable with sets of lenses having different properties such as lens shade. The retainer assembly has a back cover and a gasket or spacer between the back cover and second lens to allow second lenses of different depths to be secured in the assembly.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The second lens extends across a wearer's eyes when the face protector is worn and the first lens has side portions which extend around at least part of the opposite sides of the face to provide peripheral vision. The lens assembly may be releasably secured in the face plate opening and one or both lenses may be interchangeable with sets of lenses having different properties such as lens shade.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The lens assembly may be releasably secured in the face plate opening and the second lens is interchangeable with sets of lenses having different properties such as lens shade. The retainer assembly has a back cover and a gasket or spacer between the back cover and second lens to allow second lenses of different depths to be secured in the assembly.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The lens assembly may be releasably secured in the face plate opening and the second lens is interchangeable with sets of lenses having different properties such as lens shade. The retainer assembly has a back cover and a gasket or spacer between the back cover and second lens to allow second lenses of different depths to be secured in the assembly.

Abstract: A lens assembly for securing in an opening in a face plate of a face protector has a first, retainer lens of shape and dimensions configured to be secured in the front opening of a face plate and having a curvature substantially matching the curvature of the face plate. A second lens of smaller dimensions is secured behind the first lens to provide a lens-in-a-lens configuration. The second lens extends across a wearer's eyes when the face protector is worn and the first lens has side portions which extend around at least part of the opposite sides of the face to provide peripheral vision. The lens assembly may be releasably secured in the face plate opening and one or both lenses may be interchangeable with sets of lenses having different properties such as lens shade.