40results about How to "Sufficient illumination" patented technology

Provided are an illumination optical system having superior color rendering properties while ensuring sufficient illuminance, an image display apparatus comprising the illumination optical system and a spatial modulation device illuminated by the illumination optical system, and a method of illuminating the spatial modulation device. A first light source (11), a second light source (21) having a different emission spectrum from an emission spectrum of the first light source (11), and a replacement optical system replacing light in a specific waveband in a luminous flux (L1) from the first light source (11) with a luminous flux (L2) from the second light source (21) are comprised, and the light in the specific waveband with weak light intensity in the luminous flux (L1) from the first light source (11) is replaced with the luminous flux (L2) with sufficient intensity from the second light source (21). Thereby, a white balance can be kept without reducing the illuminance more than necessary, and superior color rendering properties can be exhibited.

The invention provides an edge-light type lighting device characterized by use of LEDs as light sources, sufficient illumination, and capability of being manufactured into a thin type. The edge-light type lighting device is provided with: a light guide plate (1) similar to a circular plate shape; LED light sources (2) arranged from the circumferential end surface of light guide plate (1) toward the internal of the light guide plate (1) according to an outgoing direction and surrounding the circumferential end surface; a reflection surface (1b) at a side opposite to a light-outgoing surface of the light guide plate making light guided from the LED light sources (2) to the light guide plate (1) outgo, reflection sheets (3) configured in a mode of covering the light guide plate (1); a frame body (6); and a light diffuse reflection part (9) formed at the surface of the reflection surface (1b) of the the light guide plate (1) and making light in diffuse reflection.

The present invention disclosed an LED projection lamp, including a lamp bracket, where the LED projection lamp further includes a plurality of light mixing units; the light mixing units each include a lens assembly and a plurality of LEDs, and are fixed on a surface of the lamp bracket in a disperse manner; and each position on the surface of the bracket has a different spatial angle. In the present invention, the light mixing units are fixed at fixation surfaces with different inclined angles on the lamp bracket, so that the light mixing units are arranged in a disperse manner, hence realizing different pixel effects. The white light LEDs and colored-light LEDs are used in coordination, so that the full-color adjustment function is implemented on each pixel while sufficient illuminance is provided; in addition, through a light mixing function between the single color LED and white-light LED, the color rendering index is improved to 90% or higher.

The present invention relates to a wearable mining lamp with uniform auxiliary lights, comprising a main light source and a main lamp cup. The mining lamp further comprises auxiliary light sources and auxiliary lamp cups for mounting the auxiliary light sources; the side wall of the auxiliary lamp cup has a reflecting effect, the reflecting surfaces are flat surfaces, and the side wall is in the form of a rearward tapering horn. The miniature lamp cup structure disclosed by the present invention can regulate the low-beam projection in a predefined area to provide uniform illumination without light spots and shadow interferences, so as to provide a high-quality illumination environment for low-beam operation and meet the requirements of close-range observation or operation.

The invention discloses an automatic mushroom culture cabin and a mushroom culture method. Automatic production of mushrooms in a fruiting period can be achieved in any season and place. The externalenvironment of mushroom growth can be monitored, regulated and controlled in all weather, the temperature, humidity, illumination as well as oxygen and carbon dioxide concentration are controlled within a range set by a user, differentiation and development of fruiting bodies are promoted, and the yield and quality of the mushrooms are improved. Meanwhile, the automatic mushroom culture cabin is further provided with a friendly and convenient man-machine interaction interface, the user can control the running state of the culture cabin in real time, check historical curves of all indexes and modify all parameters according to actual conditions, and the automatic mushroom culture cabin can flexibly adapt to culture of different types of mushrooms. Accurate control and convenient managementof mushroom production can be achieved, the occupied area of equipment is reduced, the production cost is reduced, and the yield and quality of the mushrooms are improved.

The invention relates to an air-conditioning intelligent safety inspection system and a safety inspection method, comprising a robot, a control device and an safety inspection device used for detecting connection terminals; the control device is electrically connected to the robot and the safety inspection device; a fifth shaft of the robot is provided with a connection structure which is provided with a telescopic detection contact mechanism; the telescopic detection contact mechanism is provided with a detection contact which is in contact with the connection terminal; the detection contact is electrically connected with the safety inspection device; the fifth shaft or the connection structure is provided with a positioning system of the connection terminal; the positioning system of the connection terminal is electrically connected to the control device; in the process of executing the safety inspection of the connection terminal, the positioning system of the connection terminal obtains the position information of the inspected connection terminal, and the robot aligns the detection contact with the connection terminal and inserts the detection contact into the connection terminal to perform safety inspection of the connection terminal. The air-conditioning intelligent safety inspection system realize automatic positioning and detection process, improves the stability of the detection, eliminates safety hazard, and effectively avoids the human factor.

The invention discloses a lighting device, image reading apparatus, and image forming apparatus, which can effectively utilize a light quantity of a point source when a point source with little light quantity is used as a light source of a reading device. A lighting system is provided with a point source 32 emitting light to the surface of a document which is located on contact glass 12 and becomes a reading object, and a condensing body 33 which is arranged forward in the direction of emission of light emitted from the point source 32 and which condenses light emitted from the point source 32 within a reading width in the direction of a sub-scanning direction at the time of document reading. The condensing body 33 is arranged in a direction in which angles of all lights passing through the condensing body 33 are less than a critical angle '[theta]' totally reflected by the contact glass 12. Thus, all of the lights emitted from the point source 32 through the condensing body 33 are irradiated to the surface of the document without total reflection at the contact glass 12, thereby enabling all of the lights emitted from the point source 32 to be effectively used for lighting the document surface.