Abstract: An online concierge system generates an item graph connecting item nodes with attribute nodes of the items. Example attributes include a brand, a category, a department, or any other suitable information about the item. When the online concierge system receives a search query to identify one or more items from a customer, the online concierge system parses the search query into combinations of terms and identifies item nodes and attribute nodes related to the search query. The online concierge system identifies item nodes and attribute nodes that are likely to result in a conversion. Information about the identified nodes is presented to the customer. The customer may select an item node to purchase the item, or an attribute node to execute a new search query based on terms associated with the attribute node.

Abstract: An online concierge system suggests subsequent search queries based on previous search queries and whether the previous search queries resulted in conversions. The online concierge system trains a machine learning model using previous delivery orders and whether initial and subsequent search queries in the previous delivery orders resulted in conversions. When the online concierge system receives a search query to identify one or more items from a customer, the online concierge system parses the search query into combinations of terms and identifies items related to the search query. In response to the search query resulting in a conversion, the online concierge system retrieves a conversion graph and presents a suggested subsequent search query based on the conversion graph. In response to the search query not resulting in a conversion, the online concierge system retrieves a non-conversion graph and presents a suggested subsequent search query based on the non-conversion graph.

Abstract: The present utility model relates to a transverse tube and a photographic equipment support. The purpose of the utility model is to provide a transverse tube that can be used with a common photographic equipment to allow a centre shaft transverse, and provide a photographic equipment containing the transverse tube.

Abstract: The present invention relates to a mechanism and system for attaching an external flash to a camera, and a flash. The connection mechanism comprises: a body, a connecting foot and at least two groups of electrical contacts for touching contacts of hot shoes of at least two differing types of cameras for connecting an external flash control unit; when a flash provided with the mechanism for attaching an external flash to a camera as disclosed in the present invention is mounted on a camera, the corresponding group of electrical contacts touch each other to transmit signals. Since at least two groups of electrical contacts are provided, the flash is capable of being applied to cameras of two differing types, and further facilitating users and saving costs.

Abstract: The present invention is an on-camera flashlight, comprising a lower light holder and a top light holder freely rotatably connected to the lower light holder. A flashlight light source is mounted on the top of the top light holder. The light emitting diode and the flashlight light source are mounted on the on-camera flashlight, combined for ease of use. Two functions-in-one lighting device saves space, avoids overloading the camera, and makes it portable. Because the two light sources are set in combination, the cooperation and sequence of the two light sources are easier to control. As the light emitting diode is mounted on the top light holder which may freely rotate with respect to the lower light holder, the light emitting diode may also freely rotate. It is also convenient to adjust the light direction. Above features all remarkably facilitate operation and versatility of the on-camera flashlight.

Abstract: The present invention provides a light-reflecting device for a photographic light, comprising a positioning member which is engageable with a support member, a top end of the support member being provided with a jacket; wherein the positioning member is provided with a locking mechanism of the jacket, the locking mechanism being provided with a movable lock button, the lock button being movably connected to the jacket. The present invention has the following beneficial effects: compact integral structure, convenient disassembling operation, and long life time.

Abstract: The present invention provides a light-reflecting device for a photographic light, comprising a positioning member which is engageable with a support member, a top end of the support member being provided with a jacket; wherein the positioning member is provided with a locking mechanism of the jacket, the locking mechanism being provided with a movable lock button, the lock button being movably connected to the jacket. The present invention has the following beneficial effects: compact integral structure, convenient disassembling operation, and long life time.

Abstract: A general-purpose battery compartment, comprising a compartment body that can receive either lithium batteries or AA batteries therein and separate the AA batteries received therein to prevent contact therebetween; wherein spring leafs used to connect with the lithium batteries or the AA batteries are provided within the compartment body, and contact points of anode and cathode of the lithium batteries are respectively connected to the two spring leafs that are connected to output terminals of anode and cathode of the battery compartment.

Abstract: The present utility model relates to a transverse tube and a photographic equipment support. The purpose of the utility model is to provide a transverse tube that can be used with a common photographic equipment to allow a centre shaft transverse, and provide a photographic equipment containing the transverse tube.

Abstract: A general-purpose battery compartment, comprising a compartment body that can receive either lithium batteries or AA batteries therein and separate the AA batteries received therein to prevent contact therebetween; wherein spring leafs used to connect with the lithium batteries or the AA batteries are provided within the compartment body, and contact points of anode and cathode of the lithium batteries are respectively connected to the two spring leafs that are connected to output terminals of anode and cathode of the battery compartment.

Abstract: The present invention is an on-camera flashlight, comprising a lower light holder and a top light holder freely rotatably connected to the lower light holder. A flashlight light source is mounted on the top of the top light holder. The light emitting diode and the flashlight light source are mounted on the on-camera flashlight, combined for ease of use. Two functions-in-one lighting device saves space, avoids overloading the camera, and makes it portable. Because the two light sources are set in combination, the cooperation and sequence of the two light sources are easier to control. As the light emitting diode is mounted on the top light holder which may freely rotate with respect to the lower light holder, the light emitting diode may also freely rotate. It is also convenient to adjust the light direction. Above features all remarkably facilitate operation and versatility of the on-camera flashlight.

Abstract: This specification discloses an on-camera flashlight, comprising a flashlight body, wherein the flashlight body is provided with a flashlight battery cabin, characterized that the flashlight battery cabin is provided with multiple (e.g. six) electric contactors electrically connected to output metal plate of a battery. The flashlight battery cabin in the present invention is used for holding batteries. The flashlight battery cabin has at least six electric contactors and the six electric contact shrapnel are located at the center of the base portion of the flashlight battery cabin. Therefore, it can ensure that the batteries and the flashlight battery cabin are pressed uniformly, and the batteries do not easily swell up and thus safety is improved. Moreover, because the flashlight battery cabin is pressed uniformly, the shell does not easily damage and the service life of the camera is thus extended.

Abstract: The present invention provides a flashlight, comprising: an input module, configured to input a first input information, the first input information is used to trigger the first main control module to adjust the output mode of the flashlight and the output mode is an output mode comprising flashlight parameters and parameter names; a first main control module connected to the input module, configured to receive the first input information, determine the output mode of the flashlight corresponding to the first input information, and generate a first control instruction corresponding to the output mode; a display connected to the first main control module, configured to receive the first control instruction, and output the flashlight parameters and parameter names according to the first control instruction.

Abstract: The present invention relates to a mechanism and system for attaching an external flash to a camera, and a flash. The connection mechanism comprises: a body, a connecting foot and at least two groups of electrical contacts for touching contacts of hot shoes of at least two differing types of cameras for connecting an external flash control unit; when a flash provided with the mechanism for attaching an external flash to a camera as disclosed in the present invention is mounted on a camera, the corresponding group of electrical contacts touch each other to transmit signals. Since at least two groups of electrical contacts are provided, the flash is capable of being applied to cameras of two differing types, and further facilitating users and saving costs.

Abstract: An easily adjustable tripod includes a main body, legs, a positioning piece, and a spring. The main body includes an adjustable connection part having protruding parts that function as gear teeth. Each leg includes a connector having two protruding side walls. The connector and the adjustable connection part are coupled with mounting screws. The positioning piece is coupled to the connector between the two protruding walls and meshes with the protruding parts on the adjustable connection part. The opening angle of the legs can be easily adjusted and fixed using the positioning piece and the adjustable connection part. The spring and the positioning piece are installed to form an organic whole, so the positioning piece can be conveniently adjusted without changing the opening angle after fixation. It is easy to close and fold the tripod because of the applied force of the spring.

Abstract: An easily adjustable tripod includes a main body, legs, a positioning piece, and a spring. The main body includes an adjustable connection part having protruding parts that function as gear teeth. Each leg includes a connector having two protruding side walls. The connector and the adjustable connection part are coupled with mounting screws. The positioning piece is coupled to the connector between the two protruding walls and meshes with the protruding parts on the adjustable connection part. The opening angle of the legs can be easily adjusted and fixed using the positioning piece and the adjustable connection part. The spring and the positioning piece are installed to form an organic whole, so the positioning piece can be conveniently adjusted without changing the opening angle after fixation. It is easy to close and fold the tripod because of the applied force of the spring.

Abstract: Methods and apparatuses for determining entrained and/or dissolved gas content of gas-liquid mixtures. Data generated is used to control the True (air-free) or Apparent (air-containing) Density or Entrained Air content of liquids within optimum ranges, e.g. in paper coating processes and in the manufacture of food products, personal care products, pharmaceutical products, paints, petroleum blends, etc.