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Masahiro Hayakawa

Researcher at Asahi Kasei

Publications -  21
Citations -  179

Masahiro Hayakawa is an academic researcher from Asahi Kasei. The author has contributed to research in topics: Lens (optics) & Barrel (horology). The author has an hindex of 4, co-authored 21 publications receiving 179 citations.

Papers
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Patent

Waterproof and/or water-resistant camera

TL;DR: In this article, a waterproof and/or water-resistant camera including a movable photographing lens barrel which moves in the optical axis direction of the camera, an air breathing passage for connecting the interior and the exterior of a camera, and a protection cover which covers the air-permeable and water-impermeability filter to constitute an air connecting assembly for the air.
Patent

View finder and camera having same

TL;DR: In this article, a camera is provided having a view finder that includes a field frame varying mechanism for varying the ratio length between the longitudinal and lateral sides of a field of frame of the finder.
Patent

Pressure alarm for water-sealed camera

TL;DR: In this paper, the camera is adapted to be sealed against water, the camera having a reciprocating lens barrel, a member for detecting water around the camera, and for controlling the lens, so that the lens barrel will not move when water is detected by the detecting member.
Patent

Camera having an image stabilizer

TL;DR: A camera having an image stabilizer includes a camera body, a photographic lens for forming an image of an object on an image plane of the camera body and at least one movable mirror positioned in an optical path between the photographing lens and the image plane as discussed by the authors.
Patent

Regulated parallax compensation system for a camera finder

TL;DR: In this article, the mounting member is rotated about the axis of a mirror surface to change an optical axis of the same to compensate for parallax, and an urging member biases the mounting members against the cam mechanism.