公开(公告)号：US20210088797A1

公开(公告)日：2021-03-25

申请号：US17116984

申请日：2020-12-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Susumu Uragami ,  Hiroyuki Furuya ,  Akira Kurozuka ,  Yuta Yamamoto ,  Mitsutaka Yamaguchi ,  Yoshiro Kashiwabara

IPC: G02B27/01

Abstract: An image display apparatus includes: a light source; a screen on which an image is formed when light from the light source is applied thereto; an optical system configured to generate a virtual image by light from the screen; an actuator configured to move the screen in an optical axis direction; a support base supporting the actuator; and a dynamic damper installed on a non-movable part on the support base.

公开(公告)号：US11307426B2

公开(公告)日：2022-04-19

申请号：US17116984

申请日：2020-12-09

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Susumu Uragami ,  Hiroyuki Furuya ,  Akira Kurozuka ,  Yuta Yamamoto ,  Mitsutaka Yamaguchi ,  Yoshiro Kashiwabara

IPC: G09G5/00 ,  G02B27/01

Abstract: An image display apparatus includes: a light source; a screen on which an image is formed when light from the light source is applied thereto; an optical system configured to generate a virtual image by light from the screen; an actuator configured to move the screen in an optical axis direction; a support base supporting the actuator; and a dynamic damper installed on a non-movable part on the support base.

公开(公告)号：US10803801B2

公开(公告)日：2020-10-13

申请号：US16242594

申请日：2019-01-08

Applicant: Panasonic Intellectual Property Management Co., Ltd.

Inventor： Hiroyuki Furuya ,  Susumu Uragami ,  Yuta Yamamoto ,  Akira Kurozuka ,  Mitsutaka Yamaguchi

IPC: G09G3/36 ,  G09G3/3233 ,  G02B27/01 ,  G02B5/08 ,  G03B21/20 ,  G02B26/12 ,  G09G3/02

Abstract: An image display device includes: a light source emitting laser light; a screen on which an image is drawn by being two-dimensionally scanned by the laser light; a scanner causing the laser light to scan the screen; a light detector detecting a light amount of the laser light emitted from the light source; and a controller controlling the light source by changing a current value to drive the light source in response to a target light amount. The controller obtains a detection signal when driving the light source at a plurality of current setting values from the light detector, and corrects the current value with respect to the target light amount according to an arithmetic operation configured to suppress a difference between an output characteristic of the light source guessed by the obtained detection signal and a reference output characteristic.