UV lamp modules for the ultraviolet irradiation of a substrate. The modules include multiple low-pressure mercury lamps, each having a longitudinal axis, located in a waterproof housing having a bottom, a top and a beam exit opening in the bottom which is closed by a beam exit window. To maintain hygiene, homogeneity and compactness, a first airflow zone for the supply of cooling air and a second, separate airflow zone for the discharge of heated cooling air are formed iii the housing. Viewed in a cross-section through the housing perpendicular to the longitudinal axes of the lamps and in a viewing direction from the bottom to the top, the beam exit window, the lamps and the airflow zones are arranged one after the other. The first airflow zone comprises an air supply duct which is equipped with at least one air-guiding mechanism for supplying cooling air to the lamps.

A system and method of extracting or inspecting a feature of an object using thermal imaging, and a method of inspecting an object of a garment product. The system includes a source of thermal influence arranged to heat or cool an object; an imager arranged to capture a plurality of images of the object when the object is subjected to the thermal influence; and an image processor arrange to processing the plurality of images and to distinguish a feature of interest from the other portions of the object presented on the plurality of images.

The invention relates to a low-pressure mercury vapour discharge lamp comprising a discharge vessel which encloses a discharge chamber in a gas-tight manner with said discharge chamber being provided with a filling of mercury and a filler gas, in particular a noble gas, wherein the discharge vessel has a first end section and a second end section , a first electrode arranged on the first end section and a second electrode arranged on the second end section for maintaining a discharge along a discharge path between the first electrode and the second electrode , and an amalgam deposit for regulating the mercury vapour pressure in the discharge chamber is arranged on the first end section outside the discharge path , wherein the position of the amalgam deposit is secured by means of an adhesion agent .

A UV lamp module for the ultraviolet irradiation of a substrate includes a lamp arrangement, a waterproof housing, and first and second airflow zones. The lamp arrangement includes multiple low-pressure mercury lamps each having a longitudinal axis. The waterproof housing surrounds the lamp arrangement and has a bottom side, a top side and at least two side walls connecting the bottom side and the top side to each other, and a beam exit opening on the bottom side which is closed by a beam exit window. The first airflow zone is formed in the housing and has an air supply duct with at least one air-guide for the supply of cooling air to the lamp arrangement. The second airflow zone is separated from the first airflow zone, and is formed in the housing and has an exhaust air duct for the discharge of heated cooling air. When viewed in a cross-section through the housing perpendicular to the longitudinal axes of the low-pressure mercury lamps and in a viewing direction from the bottom side to the top side, the beam exit window, the lamp arrangement and the airflow zones are arranged one after the other.

A lighting device 1 has phosphors, a porous material (5), and emitters 4. The emitters are interposed between the phosphors and surfaces (2a) to be irradiated with light of the lighting device. The porous material has heat conductivity and is impregnated with the phosphors.

A lamp assembly including a housing defining an internal volume and a lamp positioned in the internal volume, the lamp including a first electrode and a second electrode, wherein the first electrode is both thermally and electrically coupled to the housing, and wherein the second electrode is thermally coupled to the housing by way of a thermally conductive, electrically insulative material and a heat transfer element.

A mercury discharge lamp includes: a discharge tube having encapsulated therein mercury in the form of an amalgam; and a temperature control member that controls an ambient temperature of the amalgam in such a manner as to compensate for a change in the ambient temperature of the amalgam. The temperature control member may include a bimetal supporting the amalgam at a predetermined position, and the support member is formed or constituted by a bimetal. By the bimetal deforming in response to a change in the ambient temperature of the amalgam, the temperature control member changes a spaced-apart distance of the amalgam to a filament within the discharge tube and thereby changes an influence of heat generation by the filament on the amalgam. The temperature control member may include, near the amalgam, a resistance element whose resistance value changes in response to a temperature to control heat generation thereby.

An embodiment provides a lamp apparatus, including: at least one filament; an amount of amalgam; a heat-sink assembly connected to the lamp apparatus; and at least one control circuit comprising a heating element and a temperature measurement element connected to the at least one filament, wherein the control circuit varies the electrical power delivered to the heating element, thereby controlling an internal temperature of the lamp apparatus relative to a temperature set point. Other aspects are described and claimed.

A novel compact air-cavity electrodeless high intensity discharge lamp is disclosed that provides added flexibility in its design to improve performance and reliability. A coupling sleeve surrounds a bulb assembly that can replace the output coupling element require for effective operation of the lamp. The coupling sleeve couples the RF energy from the input coupling element to the bulb and the bulb assembly serves to provide the heat sinking needed for the bulb to operate within the temperature range necessary to achieve optimum performance with good reliability. Changing the design of the bulb assembly does not impact the resonant frequency of the air-cavity resonator. De-coupling the bulb assembly design from the operating frequency of the resonator gives more flexibility to designer to optimize the overall performance of the electrodeless HID lamp.

An exposure apparatus comprising a holding part for holding an electric discharge lamp, the electric discharge lamp includes an electric discharge tube which covers an electric discharge space in which a pair of electrodes are disposed to face each other, a socket provided on one end of the electric discharge tube, a metal member which guides one of the pair of electrodes into the socket, wherein an opening for ventilation is provided in a bottom of the socket, the holding part includes a ventilation pipe to form a path for ventilation through the opening in the bottom of the socket, and a cooling part for cooling the metal member by supplying a cooling medium to the metal member through the ventilation pipe.