Abstract: An improved ocular mounting assembly having a pair of ocular support arms which can be extended by sliding out of a box-section assembly housing for supporting a pair of ocular devices attached to the ends of the support arms. The improvement is a pair of stabilizers disposed inside the assembly housing and providing stability against rotational motion when the arms are extended. In one embodiment, the stabilizers are interference-fitted balls, retained in position by retainer holes in the assembly housing, and receding into recess cut-outs at the end of the support arms when the arms are fully retracted. In an alternate embodiment, the stabilizers are L-shaped, and can be either an integral part of the housing or bonded to it with adhesive.

Abstract: A compact, high-intensity light assembly including a substantially hollow shell having a distal end from which the light emerges and a proximal end into which a base unit inserts. A lamp guide holds the light source in a central position within the shell using a spring which urges a rear portion of the lamp guide against an annular seating lip on the base unit. The lamp guide preferably includes a necked-down portion having an inner surface which makes holding contact with the outer surface of the light source, and an outer surface including heat-radiating features. In a preferred embodiment, the base unit is insertable into the proximal end of the shell by way of a threaded connection, enabling the lamp guide and light source to be adjustably moved relative to the distal end of the shell so as to focus the light from the source into a preferred illumination area.

Abstract: An improved nose pad and spectacle frame. The spectacle frame includes a pair of temple pieces, a brow bar connecting the temple pieces, eye encircling rims depending from the brow bar, and reversely mounted nose pads which extend toward the tip of the user's nose, rather than the eyes. Optionally, a second pair of conventionally mounted nose pads may be provided. The reversely mounted nose pads improve weight distribution to minimize chafing, soreness and fatigue.

Abstract: An improved spectacle frame for use with a telemicroscope or similar optical instrument. The spectacle frame includes temple pieces which are angularly disposed with respect to the lenses mounted in the spectacle frame, nose pads which extend toward the tip of the user's nose, rather than the eyes, and a uniquely designed, elevated bridge assembly. Optionally, a second pair of conventionally mounted nose pads may be provided. These features combine to achieve a more favorable positioning of the telemicroscope with respect to both the lenses of the spectacles and the eyes of the user, both to maximize the field of view and to improve the pantoscopic angle, and also improve weight distribution to minimize chafing, soreness and fatigue.

Abstract: A compact, lightweight illumination system for producing a uniform, intense, and adjustable light beam. The illumination assembly may be easily mounted upon the head of a user, either on a headband or a spectacle frame. The illumination system includes a unique optical subassembly consisting of a low pass heat filter, a low scatter angle diffuser, and a compound projection/focussing lens sandwiched together and disposed along an optical axis. The optical subassembly may be used in conjunction with a conventional filament lamp illumination source to produce a readily adjustable, yet uniform and intense, beam of light.

Abstract: A telemicroscopic lens configuration for high quality optical imaging applications which provides high magnification of a work area with a wide field of view. The telemicroscopic lens configuration is a Galilean-type configuration having a positive-power objective lens and a negative-power eyepiece lens separated by an air space. The focal length of the objective lens and the air space distance are optimized to provide the magnification and overall effective focal length of the instrument. The focal length of the eyepiece lens is chosen so that the object being magnified appears in front of the viewer. Different lens materials are selected to minimize polychromatic aberrations. The shape of the objective lens, including radius of curvature and thickness of each lens element, is optimized to minimize monochromatic aberrations, which principally include spherical aberration and coma.

Abstract: An ocular mounting assembly for adjustably mounting a pair of ocular devices, such as telemicroscopic loupes, to an eyeglass frame or head mount with linear and rotational adjustments through five degrees of freedom. The ocular mounting assembly includes an adjustable ocular support assembly and an adjustable clamp assembly rotatably attached to the ocular support assembly. The ocular support assembly provides interpupillary distance, convergence angle and view direction adjustment of the ocular devices, which are rotatably attached to the support assembly. The adjustable clamp assembly provides height and view angle adjustment of the ocular devices and allows the ocular devices to be flipped up out of the way when not needed. The height adjustment in conjunction with the view angle adjustment allows the line of sight to be adjusted while the ocular devices are positioned close to the eye or eyeglass lens.