An optical apparatus includes a deflection unit configured to deflect illumination light from a light source and to deflect reflected light from the object, and a light guide unit configured to guide the illumination light to the deflection unit and to guide the reflected light from the deflection unit to a light receiving unit. The light guide unit includes first and second passage areas, and a reflective area. The illumination light is branched into first and second illumination lights by the light guide unit. The first illumination light is emitted from the first passage area and the second illumination light is emitted from the second passage area so that an emission direction of the first illumination light and that of the second illumination light are not parallel to each other, and then the first illumination light and the second illumination light enter the deflection unit.

An optics system includes a convex catching mirror located within respect to the concave primary mirror to form an optical path for a field of view. A conical volume is formed with respect to the concave primary mirror and the convex catching mirror, the optical path not obstructed by the conical volume. A component within the conical volume.

A focusing device comprises a base unit and a mirror unit which is translatable relative to the base unit parallel to an optical axis of the focusing device. The mirror unit is configured to receive incident light along the optical axis in a first direction and to reflect the incident light parallel with the optical axis in said first direction. The mirror unit comprises at least four mirrors, at least one of the mirrors being curved.

A system for monitoring laser luminous power and method, and a collimating lens thereof are provided, which relate to the field of optical communications. The collimating lens includes a lens main body, where the lens main body includes a light-incident surface into which a divergent beam is input; a first light exit surface from which a collimated beam is output; a second light exit surface; and a reflective surface which reflects a certain proportion of the light beam to the second light exit surface for output. The system includes a laser, the collimating lens described above, and a photoelectric conversion chip. The laser is connected to the light-incident surface of the collimating lens via an optical path, and the photoelectric conversion chip is connected to the second light exit surface of the collimating lens via an optical path.

An inspection device for inspecting a panel, in particular a display, or a PCB, includes a first mirror, a second mirror, a third mirror, and a sensor. The first mirror, the second mirror, and the third mirror are arranged to display a section of the panel to be inspected on the sensor with a magnification factor greater than one. At least two of the group of the first mirror, the second mirror, and the third mirror, have both a first type of curvature, and a remaining mirror has a second type of curvature, opposite to the first type of curvature. The first mirror, the second mirror, and the third mirror form a telecentric system which is telecentric on a panel facing side and/or on a sensor facing side.

A focusing device (1) comprises a base unit (12) and a mirror unit (11) which is translatable relative to the base unit parallel to an optical axis (A) of the focusing device. The minor unit (11) is configured to receive incident light along the optical axis (A) in a first direction and to reflect the incident light parallel with the optical axis (A) in said first direction. The minor unit (11) comprises at least four minors (21-24), at least one of the mirrors being curved.

An optics system includes a convex catching mirror located within respect to the concave primary mirror to form an optical path for a field of view. A conical volume is formed with respect to the concave primary mirror and the convex catching mirror, the optical path not obstructed by the conical volume. A component within the conical volume.

The present disclosure describes a cavity accumulating the intensity of the laser beams reflecting within the cavity to build up power while also maintaining a relatively uniform intensity distribution. An apparatus comprising the cavity can be used to build up the power of the electromagnetic radiation for interacting with material, wherein the material does not substantially reflect or absorb the electromagnetic radiation.

An inspection device for inspecting a panel, in particular a display, or a PCB, includes a first mirror, a second mirror, a third mirror, and a sensor. The first mirror, the second mirror, and the third mirror are arranged to display a section of the panel to be inspected on the sensor with a magnification factor greater than one. At least two of the group of the first mirror, the second mirror, and the third mirror, have both a first type of curvature, and a remaining mirror has a second type of curvature, opposite to the first type of curvature. The first mirror, the second mirror, and the third mirror form a telecentric system which is telecentric on a panel facing side and/or on a sensor facing side.

An optical apparatus includes a deflection unit configured to deflect illumination light from a light source and to deflect reflected light from the object, and a light guide unit configured to guide the illumination light to the deflection unit and to guide the reflected light from the deflection unit to a light receiving unit. The light guide unit includes first and second passage areas, and a reflective area. The illumination light is branched into first and second illumination lights by the light guide unit. The first illumination light is emitted from the first passage area and the second illumination light is emitted from the second passage area so that an emission direction of the first illumination light and that of the second illumination light are not parallel to each other, and then the first illumination light and the second illumination light enter the deflection unit.