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177 results about "Photographic camera" patented technology

Photographic camera - equipment for taking photographs (usually consisting of a lightproof box with a lens at one end and light-sensitive film at the other) camera. aperture - a device that controls amount of light admitted. box camera, box Kodak - a simple camera shaped like a rectangular box.

Shadow imaging system for multi-spraying-hole spraying measurement

InactiveCN106932398ATo achieve the purpose of simultaneous observationInvestigating moving fluids/granular solidsHigh-speed photographyPhotographic cameraCombustion chamber
The invention belongs to the field of visualized measurement based on shadow-method imaging and in particular relates to a shadow imaging system for multi-spraying-hole spraying measurement. According to the shadow imaging system for the multi-spraying-hole spraying measurement, light penetrates through a semi-reflecting and semi-transmitting mirror and is irradiated into a combustion chamber; the light is reflected by the semi-reflecting and semi-transmitting mirror and is irradiated to a focusing mirror in a direction vertical to an original direction; the light is gathered through the focusing mirror and is reflected through a second plane mirror and then finally enters a high-speed photographic camera; an image file is stored in a computer. A multi-spraying-hole oil spraying device is mounted on a wall surface at the opposite side of a visualized window and mirror-surface treatment is carried out on the wall surface, which is provided with the oil spraying device, of the combustion chamber; direction selectivity of light transmission of the semi-reflecting and semi-transmitting mirror is combined and the semi-reflecting and semi-transmitting mirror is placed in a manner of forming an angle of 45 degrees with a horizontal direction, so that a plurality of beams of sprayed mist, which are sprayed by the oil spraying device, are observed from a front surface, and furthermore, the shadow imaging system can be applied to the multi-spraying-hole oil spraying device and the aim of observing multi-spraying-hole oil spraying at the same time is realized.
Owner:HARBIN ENG UNIV

Aerial dynamic large-scale vegetation coverage acquisition system

The invention discloses an aerial dynamic large-scale vegetation coverage acquisition system which consists of an unmanned plane platform, a GPS (global positioning system) receiver, an automatic navigator, an aerial photography fixing device, a digital aerial photographic camera, a wireless digital image transmission system, a navigation controller, notebook computer hardware and two pieces of software, namely an aerial photography task flying management and control system and a dynamic vegetation coverage acquisition system, wherein the digital aerial photographic camera is arranged on the aerial photography fixing device of the unmanned plane platform; the aerial photography fixing device, the GPS receiver, the automatic navigator and the wireless digital image transmission system are arranged on the unmanned plane platform; the two pieces of software are arranged in a notebook computer; an unmanned plane flies with the assistance of the automatic navigator; the flying and the landing of the unmanned plane are guided and adjusted through the navigation controller; a user observes images shot by the digital aerial photographic camera and captures images through the wireless digital image transmission system and the dynamic vegetation coverage acquisition system, and then vegetation coverage information can be overall and directly calculated.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES

Covering film of flexible printing circuit board and flexible printing circuit board structure and manufacturing method thereof

The invention discloses a covering film of a flexible printing circuit board, a flexible printing circuit board structure provided with the covering film, and a manufacture method. The covering film is provided with a liquid baking type polyamide imide film directly formed on the surface of a formed circuit substrate. The formed circuit substrate and the liquid baking type polyamide imide film form the flexible printing circuit board, the flexible printing circuit can be matched with a reel-to-reel printing machine table for continuous production, the liquid baking type polyamide imide film can be adopted and matched with a photoreception polyimide protective film to form the covering film which can improve reserved opening precision of a flexible printing circuit board welding plate or a circuit. The covering film has the advantages of being ultra-thin, good in softness and flexibility, conforming to environment-friendly operation without separating paper, producing and machining in a non-scrap mode, being high in TG and the like. Moreover, the flexible printing circuit board provided with the covering film is suitable for flip phones, slide phones, digital cameras, digital photographic cameras, tablet personal computers, intelligent mobile phones and the like.
Owner:KUSN APLUS TEC CORP

Aerial photogrammetry method based on dynamic post-processing technique of global satellite navigation system

The invention discloses an aerial photogrammetry method based on a dynamic post-processing technique of a global satellite navigation system. The method comprises the following steps of: 10) mounting an aerial photographic camera and a double-frequency global satellite navigation system receiver on an aerial platform; 20) performing aerial photographing by means of the aerial photographic camera, and in the photographing process, continuously collecting satellite signals of the global satellite navigation system by means of the receiver and synchronously recording the photographing time of an aerial photograph; 30) performing post-processing on the satellite signals of the global satellite navigation system by means of the dynamic post-processing technique of the global satellite navigation system to acquire three-dimensional coordinates of an antenna center of the global satellite navigation system at photographic moments; and 40) performing aerial photogrammetry by means of the aerial photograph according to the three-dimensional coordinates of the antenna center of the global satellite navigation system at photographic moments to obtain three-dimensional coordinates of ground points corresponding to the aerial photograph. The method can perform aerial photogrammetry without ground control points by means of a GNSS PPK technique.
Owner:SOUTHEAST UNIV
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