公开(公告)号：US20230418146A1

公开(公告)日：2023-12-28

申请号：US18463367

申请日：2023-09-08

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kazuyasu FUKANO ,  Masaki KOBAYASHI ,  Tetsuro NARIKAWA ,  Shunsuke HARA

IPC: G03B21/60 ,  G03B21/28

CPC classification number: G03B21/60 ,  G03B21/28

Abstract: A spatial projection apparatus is provided. The apparatus includes an optical medium that diffuses a projected light. The apparatus further includes a light guide optical system that guides the projected light diffused by the optical medium and forms an image on a spatial imaging unit. The optical medium can be formed with a plate shape, a film shape, a three-dimensional shape including unevenness, in smoke-form, fluid-form, or mist-form.

公开(公告)号：US20220171264A1

公开(公告)日：2022-06-02

申请号：US17539554

申请日：2021-12-01

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tomoyuki UEDA ,  Tetsuro NARIKAWA ,  Toshifumi KASE ,  Akira INOUE

IPC: G03B21/16

Abstract: A projector includes a cooling fan, and a processor, and the processor executes, in a case in which the cooling fan is operating in a first revolution speed mode, a control of switching an operation mode of the cooling fan to a second revolution speed mode whose revolution speed is faster than that of the first revolution speed mode in a case in which an obtained temperature detection value reaches a first threshold, and executes, in a case in which the cooling fan is operating in the second revolution speed mode, a control of switching the operation mode of the cooling fan to a revolution speed mode whose revolution speed is slower than that of the second revolution speed mode in a case in which an obtained temperature detection value decreases below a second threshold which differs from the first threshold.

公开(公告)号：US20180164668A1

公开(公告)日：2018-06-14

申请号：US15889588

申请日：2018-02-06

Applicant: Casio Computer Co., Ltd.

Inventor： Tetsuro NARIKAWA

IPC: G03B21/20 ,  H04N9/31 ,  G03B33/08

CPC classification number: G03B21/206 ,  G03B21/2033 ,  G03B33/08 ,  H04N9/3111 ,  H04N9/3155 ,  H04N9/3164 ,  H04N9/3182

Abstract: A projection apparatus includes a light source unit which time-divisionally emits light in colors by light emission from light emitting devices; a display element using light emitted from the light source unit, displaying images respectively corresponding to the colors of the emitted light, and forming optical images by reflection or transmission light thereof; a projection unit emitting the optical images formed by the display element toward a projection target; a timing setting unit setting a change timing associated with changing each of the colors, and setting spoke periods generated at each change timing; a light source drive unit driving the light source unit, based on the change timings and spoke periods; a detection unit detecting information indicating a light amount of the light for each of the colors emitted from the projection unit during the spoke periods; and a light source controller setting a delay time for light emission timings at the light source unit in the spoke periods by the light source drive unit, based on information obtained by the detection unit.

公开(公告)号：US20220308695A1

公开(公告)日：2022-09-29

申请号：US17700743

申请日：2022-03-22

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Shunsuke HARA ,  Tetsuro NARIKAWA ,  Kazuyasu FUKANO ,  Masaki KOBAYASHI

IPC: G06F3/042 ,  G06F3/01 ,  H04N9/31 ,  G01S17/42

Abstract: A detection apparatus includes at least one processing unit, a light guide optical system configured to focus projected light to a spatial image forming plane to form an image thereon, and a sensor configured to shine a laser beam over a set scanning range to detect an entry depth of a target object in a direction orthogonal to the spatial image forming plane and an entry position of the target object on the spatial image forming plane, and the processing unit executes an operation associated with the entry position when the entry depth of the target object reaches a set depth.

公开(公告)号：US20220299849A1

公开(公告)日：2022-09-22

申请号：US17699951

申请日：2022-03-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Shunsuke HARA ,  Tetsuro NARIKAWA

IPC: G03B21/14 ,  G03B21/20

Abstract: A projection control apparatus includes at least one processor or a control processing unit, and a communication unit. The control processing unit obtains a first captured image captured at a first point and a second captured image captured at a second point differing from the first point via the communication unit, obtains first correction data from the first captured image and second correction data from the second captured image, obtains first position data at the first position, second position data at the second point, and third position data at a third point differing from the first and second points, determines third correction data corresponding to the third point using the first correction data, the second correction data, the first position data, the second position data, and the third position data, and corrects a projected image to be projected by a projector based on the third correction data.

公开(公告)号：US20190297306A1

公开(公告)日：2019-09-26

申请号：US16291723

申请日：2019-03-04

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tetsuro NARIKAWA

IPC: H04N9/31 ,  H04N5/74

Abstract: A projection control apparatus includes a CPU configured to perform control to successively project a plurality of images for correction onto a projection target, each of the images for correction being configured such that a marker image is arranged at a preset position in the image, to acquire information of a plurality of photographed images including the images for correction projected onto the projection target, to detect a difference between the respective photographed images, based on positions of the marker images, and to set a correction condition for projecting an image, based on the information of the photographed images, in accordance with the detected difference of a projection image range.

公开(公告)号：US20140139751A1

公开(公告)日：2014-05-22

申请号：US14083282

申请日：2013-11-18

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Tetsuro NARIKAWA

IPC: H04N5/74

CPC classification number: G06T3/005 ,  G06T3/60 ,  H04N5/7475 ,  H04N9/3185

Abstract: A chart generation unit generates an adjustment chart, and a projection unit projects the adjustment chart onto a circular cylinder. A parameter acquiring unit acquires 12 parameters in total, relating to the positions of four corners and middle points of a top side and a bottom side of a chart and lateral expansion of the chart, the chart being input by a user through manipulations of an operation unit. A transform function determination unit calculates, from the total of 12 parameters, an accurate transform function for projecting an image onto the circular cylinder. An image conversion unit applies geometric transformation to the image based on the calculated transform function.

公开(公告)号：US20220299790A1

公开(公告)日：2022-09-22

申请号：US17699689

申请日：2022-03-21

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Masaki KOBAYASHI ,  Kazuyasu FUKANO ,  Tetsuro NARIKAWA ,  Shunsuke HARA

IPC: G02B30/56

Abstract: A projector includes a projection unit configured to emit projected light, a first projection unit configured to form an image in an aerial projection region from a first part of the projected light, and a second projection unit configured to form an image on a real projection surface from a second part of the projected light, the second part being different from the first part.

公开(公告)号：US20210258533A1

公开(公告)日：2021-08-19

申请号：US17164881

申请日：2021-02-02

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Akihide TAKASU ,  Tetsuro NARIKAWA

IPC: H04N5/63 ,  H04N9/31 ,  G06F3/02 ,  G06F1/3234

Abstract: A display device includes a power key, and at least one processor that executes following: determination processing that determines, when turning on a light source in response to a user's operation on the power key, whether a power supply supplying power is a predetermined power supply or not, and control processing that displays, when the determination processing determines that the power supply is the predetermined power supply, a power-on continuation confirmation screen and continues, in case of detection of a confirmation operation from the user according to the power-on continuation confirmation screen, lighting of the light source.

公开(公告)号：US20200326617A1

公开(公告)日：2020-10-15

申请号：US16824334

申请日：2020-03-19

Applicant: CASIO COMPUTER CO., LTD.

Inventor： Kiyoshi ODA ,  Yubi TAKASHIMADA ,  Tetsuro NARIKAWA

IPC: G03B21/20 ,  G02B26/00

Abstract: A projector of the present invention includes a light source unit including a first light source emitting light in a first wavelength range and a second light source emitting light in a second wavelength range, a display device for forming image light, a projection optical system for projecting the image light onto a projection target, a timing setting module for changing a ratio of a period shining light in the first wavelength range to a period shining light in the second wavelength range in a spoke period having a plane period emitting light in the first or second wavelength range and a color mixing period emitting both lights in the first and second wavelength ranges for each of a plurality of color modes, and alight source driving module for driving the light source unit based on a setting at the timing setting module.