A lighting element is disclosed that provides a projection of light forming a substantially uniform bright light on a surface a known distance from the lighting element. The lighting elements includes a dome lens that is removably positioned on a light source, such that the light source is retained at a location within a focal length of a projection lens and at or within a focal length of the dome lens. The dome lens magnifies the light outputted by the light source, such that the projected light is brighter than the light generated by the light source.

A light application device for curing of liquid materials is provided. The device includes a handpiece and a light guiding element which can be mounted to the handpiece and has a light guiding body consisting of a solid body. The light guiding element defines a first optical axis for coupled-in light and a second optical axis for coupled-out light. The second optical axis runs transversely to the first optical axis. The light guiding element has a distal end side at which the coupled-in light can be deflected for coupling out in such a way that the light exit is formed by a region of the lateral surface of the light guiding element. The distal end side has end faces for deflecting the light. The end faces each extend transversely to the first optical axis and transversely to the second optical axis and are connected to one another via intermediate surfaces.

Disclosed embodiments integrate a camera into an intraoral mirror. Integrating a camera into an intraoral mirror provides an efficient way to record and display what is visible to the healthcare provider in the mirror.

Presented herein is an optical filter system for visible light, which has a first average transmittance T.sub.1 between a limit wavelength .sub.G and a wavelength of 700 nm and a second average transmittance T.sub.2 between a wavelength of 380 nm and the limit wavelength .sub.G. In this case: 410 nm<.sub.G<520 nm and 0.05 $<\frac{T_1}{T_2}<0.60.$

According to one embodiment, an illumination device includes a plurality of light emitting elements and a plurality of reflectors. The plurality of reflectors include at least one first reflector and at least one second reflector. The first reflector is provided corresponding to the first region at the center and is provided so that the corresponding light emitting element is positioned within a focal region in the vicinity of a focal point. The second reflector is provided corresponding to the second region, has an angular eccentricity so as to collect light on one region on the optical axis, and is provided so as to be positioned within a margin region in which one of the corresponding light emitting elements is provided at a position farther away than a second focal region in the vicinity of the focal point.

A user-wearable illumination assembly comprising eyeglass frames supporting a pair of lenses, a mounting structure on a bridge of the eyeglass frames, a headlamp removably coupled to the mounting structure, a battery housing removably coupled to the headlamp, and a battery inside the battery housing.

A light source unit includes light-emitting elements, a light-shielding body, and a rod lens including a first end surface, a second end surface, and a side surface. The light-shielding body is separated from the side surface, covers the side surface, includes an opening exposing at least a portion of the second end surface, and includes a tip protruding further than the second end surface in a first direction from the first end surface toward the second end surface. A first plane crosses the first direction and is at the same first-direction position as the tip. A second plane crosses the first direction and is at the same position as the second end surface or between the tip and second end surface in the first direction. A first surface area of the opening at the first plane is greater than a second surface area of the opening at the second plane.

Provided is a lighting device including: a support portion disposed in front of a forehead of a head of a wearer; a light source unit provided to the support portion, the light source unit including a light source which irradiates an object with light, and a condensing lens which condenses the light emitted from the light source; and a transmission member configured to transmit reflected light from the object so as to allow the wearer to visually recognize the reflected light, the transmission member being provided to the support portion and disposed in front of an eye of the wearer, wherein the light source unit includes a first polarizing element which converts emitted light emitted from the light source to linearly polarized light, and the transmission member includes a second polarizing element which is disposed 90 orthogonal to a polarization axis of the first polarizing element.

A dental light comprises at least one light emitting diode light source configured to produce a light beam and at least one collimating lens system situated to receive the light beam. The collimating lens system is configured to collect and collimate the light beam. The collimating lens system can additionally modify the beam through controlled diffusion or shape the beam using an aperture.

A medical luminaire, for example a dental treatment luminaire for the intraoral illumination of a surgical field, has at least one illuminating unit with light-producing means and with optical means for generating a field of light in an object plane, wherein a diffuser is provided that is designed to widen the field of light in the object plane.