A first light source device emits first light having a first wavelength. A second light source device emits second light having a second wavelength longer than the first wavelength. A splitting unit is configured to split the first light into third light having a third wavelength same as the first wavelength and fourth light having a fourth wavelength same as the first wavelength. A wavelength converter is configured to be excited by the third light to emit fifth light having a luminescence peak at a fifth wavelength between the third wavelength and the second wavelength. A combining optical system is configured to combine the second light, the fourth light, and the fifth light together. A control device is configured to control a light output of the second light source device and a split ratio between the third light and the fourth light in the splitting unit.

An illumination apparatus includes a housing, a first light source, and a first lens optical system. The housing includes an opening. The first light source includes a first emission portion to emit first light into an internal space of the housing. The first lens optical system includes at least one first lens between the first emission portion and the opening in the housing on a path of the first light. The first lens optical system forms an image of the first light from the first emission portion on an imaginary image plane adjacent to the opening and causes the first light to be emitted through the opening. An angle defining a numerical aperture of the first lens optical system is greater than a divergence angle of the first light from the first emission portion.

Disclosed herein is an illumination apparatus and a method of manufacturing the same. The illumination apparatus comprises an array of optical elements, and at least one radiation-emitting element configured to generate, in cooperation with the array, a structured light pattern. An optical phase-retardation of each optical element of radiation emitted by the at least one radiation-emitting element is configured such that the structured light pattern comprises a regular array of dots.

The invention provides a light generating system (1000) comprising: (i) a first set (1100) comprising n1 first light generating devices (110), (ii) a first optical element (410), and (iii) a luminescent body (200), wherein: the n1 first light generating devices (110) are configured to generate first device light (111); wherein the n1 first light generating devices (110) may be selected from the group of lasers and superluminescent diodes; the first set (1100) comprises k1 first subsets (1115) of each at least one first light generating device (110) of the n1 first light generating devices (110), wherein n13, especially n15, and 2k1n1; the luminescent body (200) is configured to: (i) convert part of the first device light (111) into luminescent material light (211), and (ii) transmit part of the first device light (111); the n1 first light generating devices (110) and the first optical element (410) are configured to provide first beams (115) of first device light (111) to the luminescent body (200), wherein two or more first beams (115) of two or more first light generating devices (110) of the k1 first subsets (1115) have different first angles of incidence (1) relative to a normal to the luminescent body (200); andin an operational mode of the light generating system (1000) a first intensity of the first device light (111) of the k1 first subsets (1115) is dependent upon the first angles of incidence (1).

The present disclosure relates to a lighting component which may comprise a light emitting diode (LED) or laser diode (LD) for generating at least one of blue light or ultraviolet light. A fluoride phosphor matrix may be included, which may be consolidated into a phosphor ceramic structure including at least one of a transparent fluoride ceramic structure or a translucent fluoride ceramic structure, and positioned adjacent to the LED or LD. The phosphor ceramic structure generates at least one of red or orange light when irradiated by the light emitted from the LED or LD. The phosphor ceramic structure exhibits reduced thermal quenching relative to a fluoride particulate structure irradiated by the LED or LD.

Methods and systems for combining electrically isolated LEDs and one or more laser diodes into a hybrid illumination device are presented herein. A hybrid LED and laser diode based illumination device includes both electrically isolated LEDs and one or more laser diodes assembled on common metal core printed circuit board. Employing electrically isolated LEDs allows the electrical connection of multiple LEDs in series on the common metal core printed circuit board with high spatial density. In some embodiments, a laser diode source is located within a spatial envelope of an LED array to realize a particularly compact, high optical power, hybrid LED and laser diode based illumination device with a relatively small illumination source etendue. In a further aspect, different sets of LEDs and one or more laser diodes are independently controlled to generate illumination with different spectral characteristics.

The invention provides in embodiments a light generating system (1000) comprising a first light generating device (100), a first luminescent material (210), and a second luminescent material (220), wherein: A) the first light generating device (110) is configured to generate first device light (111), wherein the first light generating device (110) comprises a first light source (10) selected from the group of a superluminescent diode and a laser; B) the first luminescent material (210) comprises a line absorber and line emitter luminescent material providing a first luminescent material emission (211) comprising a line emission at a first wavelength (.sub.L,1) upon excitation with the first device light (111); C) the second luminescent material (220) comprises a broad band emitter luminescent material providing a second luminescent material emission (221) comprising a broad band emission upon excitation with the first device light (111), wherein the second luminescent material emission (221) has a second centroid wavelength (.sub.LC,2), wherein |.sub.L,1-.sub.LC,2|20 nm; D) the first light generating device (110) is configured to pump one or more of the first luminescent material (210) and the second luminescent material (220) with the first device light (111); and E) the light generating system (1000) is configured to generate system light (1001) comprising one or more of the first luminescent material emission (211) and the second luminescent material emission (221).

A cover structure includes: a lens; and a cover member disposed over the lens and having a lower surface and an upper surface. The lower surface of the cover member includes: a first region, and a second region located around the first region. A light diffusing substance is disposed on the lower surface of the cover member in the second region, such that a light diffusivity of the second region is higher than a light diffusivity of the first region. The upper surface of the cover member is covered by a light-transmissive member, and a hardness of the light-transmissive member is higher than a hardness of the cover member.

A mountable light may comprise: a light body having a clamping arrangement and a compartment with an opening at an end thereof; a light head assembly including a source of light, the light head assembly being configured to cover the opening of the compartment; the light body and the light head assembly each having a feature that engages the feature of the other for pivoting the light head assembly relative to the light body, e.g., for covering and uncovering the opening of the compartment; and a latch for retaining the light head assembly against the light body to cover the opening of the compartment. A source of electrical power can be placed into and/or removed from the compartment of the light body when the mountable light is mounted to an object, e.g., a firearm or other object or device, by the clamping arrangement.

A light guide body has a first light guide part disposed in front of a light source, a second light guide part extending from a front surface side of the first light guide part toward at least one lateral side of the first light guide part, a plurality of third light guide parts branching and extending from a midway portion of the second light guide part, an incidence part located on a back surface side of the first light guide part, and a first emission part located on a tip side of the plurality of third light guide parts, the second light guide part has a shape in which a cross-sectional area gradually decreases toward the tip side, and the plurality of third light guide parts are arranged next to each other in an extension direction of the second light guide part.