A system includes a dome-shaped optical component having a substantially circular edge and a mounting base for the optical component. A recess is in an outer surface of the optical component. A projection on an inner surface of the mounting base and is configured to engage the recess. An adhesive material is between the optical component and the mounting base. The adhesive material forms an upper band and a lower band with a void between the upper band and the lower band. The void is positioned relative to the recess in the outer surface of the optical component such that a bending stress in the optical component at the recess is less than what the bending stress would be without the void. A heater is inside and thermally coupled to the optical component.

An alignment subsystem that incorporates a ball and lever approach to adjust windage and elevation. The system provides a low cost, vibration immune red dot and/or reticle device for a weapon system. The materials used to construct the system also provide for temperature indifference and increased wear characteristics.

An optical surgical probe includes a cylindrical cannula; a light guide partially within the cannula to receive a light beam from a light source through a proximal end, to guide the light beam to a distal end of the light guide, and to emit the light beam through the distal end of the light guide; a multi-spot generator at a distal end of the cannula that includes an optical element with a proximal surface to receive the emitted light beam, and a focusing lens, positioned inside the optical element to focus the received light beam into a focused beam, wherein the optical element has a faceted distal surface to split the focused beam into multiple distally emitted beam-components when the optical surgical probe is operated in a fluid with an index of refraction of 1.30-1.40, and to confine the focused beam in the optical surgical probe when the optical surgical probe is operated in air.

Provided is a light-emitting element lamp capable of increasing a light extraction efficiency and its manufacturing method. The light-emitting element lamp according to the present invention includes: a light-emitting element having a semiconductor layer provided on a substrate; a first lens of spherical segment shape provided by protruding from a surface on the opposite side of the semiconductor layer of the substrate and having a spherical cap that includes a bottom surface consisting of an attaching surface to the surface and a protruding surface from the surface and a radius of curvature R.sub.1; and a second lens attached to the side of the light-emitting element and the protruding surface of the first lens, in which the second lens has a concave curve from a peripheral side of the bottom surface of the first lens to the semiconductor layer side on the side of the light-emitting element.

A system includes a dome-shaped optical component having a substantially circular edge and a mounting base for the optical component. A recess is in an outer surface of the optical component. A projection on an inner surface of the mounting base and is configured to engage the recess. An adhesive material is between the optical component and the mounting base. The adhesive material forms an upper band and a lower band with a void between the upper band and the lower band. The void is positioned relative to the recess in the outer surface of the optical component such that a bending stress in the optical component at the recess is less than what the bending stress would be without the void. A heater is inside and thermally coupled to the optical component.

A tritium housing includes a body extending from a first end to a second end to define a hollow extending therebetween. A lens is disposed adjacent and surrounded by the first end of the body and a tritium vial is disposed within the hollow to produce illumination visible through the lens. The body is comprised of a colored plastic material for magnifying and brightening the tritium illumination during a daylight use of the tritium housing.

The invention relates to pyrrolone compounds of the formula (I) wherein X, R.sup.1, R.sup.2, R.sup.3 and A are as defined in the specification. Furthermore, the present invention relates to processes and intermediates for making compounds of formula (I), to herbicidal compositions comprising these compounds and to methods of using these compounds to control plant growth. ##STR00001##

A tritium housing includes a body extending from a first end to a second end to define a hollow extending therebetween. A lens is disposed adjacent and surrounded by the first end of the body and a tritium vial is disposed within the hollow to produce illumination visible through the lens. The body is comprised of a colored plastic material for magnifying and brightening the tritium illumination during a daylight use of the tritium housing.

Embodiments of the disclosure are directed to camera assemblies that include a lens module, a camera housing enclosing the lens module, and an actuator module coupled to the lens module. The lens module includes at least one lens element disposed along an optical axis and a lens barrel at least partially surrounding the at least one lens element. The lens barrel includes a flange that defines, at an intersection with the at least one lens element, an input aperture through which light enters the lens module. The flange has a height that varies in a direction from the input aperture to an outer edge of the flange. The actuator module is configured to rotate the lens module around axes orthogonal to the optical axis with respect to the camera housing.

An optical module includes a bench part and a cap on the bench part. The bench part includes a bench, an electrode, a semiconductor optical device and a lens. The electrode is disposed on the first and second areas of the bench. The semiconductor optical device is disposed on the electrode in the first area. The cap includes a base, a pad electrode, a conductor, a ceiling, a front wall, and a rear wall. The pad electrode is disposed on the base. The conductor is disposed on the base and connected to the pad electrode. The electrode is electrically connected to the conductor on the second area. The ceiling extends along a first plane. The front wall has a front outer face extending along a second plane intersecting the first plane. The rear wall extends from the ceiling in a direction from the cap to the bench.