A lighting system, having a base cone assembly, a base plate that mounts onto a dock pile, and an electrical system having at least one adjustable diameter lighting source. The present invention further has a tip cone mounted onto the base cone assembly. The tip cone has at least one light slot or clear section to permit light to emit there through. The tip cone and the base cone assembly are apex shaped. Extending from the tip cone is a mast bolt that secures to the base plate. The at least one adjustable diameter lighting source has at least one LED source and regulator. The at least one adjustable diameter lighting source emits radial and/or downward lighting onto the dock pile.

A high-diffusion-coefficient and high-brightness light source generation device comprising: a light source module, an optical fiber bundle and an optical fiber hemisphere emitter, wherein the light source module provides the optical fiber bundle with a plane light source having the same size as an end surface of an incident end thereof, the incident end receives light emitted from the light source module, exit ends transmit the light to the optical fiber hemisphere emitter, the exit ends of the optical fiber bundle arranged on a hemispherical wall of the optical fiber hemisphere emitter in an equal solid angle manner, an end surface of each optical fiber exit end located on the same surface as the inner wall of a hemisphere, a bottom plate arranged above an opening of the optical fiber hemisphere emitter, and an opal glass window arranged at the circle centre position of the bottom plate.

A grille lighting system includes a light emitting lamp that includes one or more walls defining an inner space isolated from outside, a light emitting material disposed in the inner space and configured to emit light when the light emitting material contacts air, and a shutter disposed on the one or more walls, wherein the shutter is configured to be opened to allow introduction of outside air to the inner space from outside and further configured to be closed to block introduction of outside air to the inner space. The system further includes a controller configured to control operation of the shutter and cause the shutter to be opened and closed such that when the shutter is opened, the outside air is introduced to contact the light emitting material, which causes the light emitting material to emit light.

A light guide plate includes an incidence surface and an output surface. The incidence surface is an end surface on which light emitted from a light source is incident. The output surface is a surface from which incident light coming from the incidence surface is outputted, and is a plane orthogonal to a thickness direction. The incidence surface is at least partially curved toward the light source, when viewed in a cross-section cut along a plane parallel to both a thickness direction of the light guide plate and an arrangement direction in which the light source and the light guide plate are arranged.

A grille lighting system includes a light emitting lamp that includes one or more walls defining an inner space isolated from outside, a light emitting material disposed in the inner space and configured to emit light when the light emitting material contacts air, and a shutter disposed on the one or more walls, wherein the shutter is configured to be opened to allow introduction of outside air to the inner space from outside and further configured to be closed to block introduction of outside air to the inner space. The system further includes a controller configured to control operation of the shutter and cause the shutter to be opened and closed such that when the shutter is opened, the outside air is introduced to contact the light emitting material, which causes the light emitting material to emit light.

Providing a super-high pressure lamp having increased pressure resistance. The super-high pressure lamp includes: an arc tube; and a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed, wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.

Providing a super-high pressure lamp having increased pressure resistance. The super-high pressure lamp includes: an arc tube; and a sealing portion in which a front end of an exhaust pipe capable of exhausting gas in the arc tube or supplying gas into the arc tube is sealed, wherein, in the sealing portion, a height of a first sealed space, which has a tapered shape that becomes narrower toward a front end of the sealing portion, is larger than twice an inner diameter of the first sealed space.

A light guide plate includes an incidence surface and an output surface. The incidence surface is an end surface on which light emitted from a light source is incident. The output surface is a surface from which incident light coming from the incidence surface is outputted, and is a plane orthogonal to a thickness direction. The incidence surface is at least partially curved toward the light source, when viewed in a cross-section cut along a plane parallel to both a thickness direction of the light guide plate and an arrangement direction in which the light source and the light guide plate are arranged.

An LED bulb (10) includes a metal lead frame (50) on which is directly mounted a low beam set of first LED dies (14), a high beam set of second LED dies (16), and a high beam set of third LED dies (16). The lead frame (50) is bent so that the first LED dies (14) face upwards and the second and third LED dies (16) face sideways and in opposite directions. A thermally conductive opaque plastic body is molded around the lead frame and exposes the LED dies. The body includes light-blocking features (26, 32, 40) to cause the light emission pattern of the first LED dies (14) to be limited in lateral and vertical directions for a low beam of a headlight. The light-blocking features also cause the light emission pattern of the second and third LED dies (16) to be less limited in the lateral and vertical directions for a wider high beam of the headlight.

A photoionization detector sensor equipped with a temperature compensating and output adjustable ultraviolet lamp driver for supplying an alternating current signal to the ultraviolet lamp effective to light the ultraviolet lamp with direct current supplied from both a first variable voltage supply circuit and a second temperature sensitive fixed voltage supply circuit, and method of standardizing output of the photoionization detector sensor by adjusting the voltage supplied to the driver by the first variable voltage supply circuit so that future reported values will more closely approximate actual values.