Olympus Optical Company, Ltd.

Akira Kusumoto

Shinichiro Hattori

Masahide Kanno

Kazunari Nakamura

Jun Hasegawa

Kimihiko Nishioka

Shinji Yamashita

Akira Watanabe

Katsuyuki Saito

Masahiko Sasaki

Akinobu Uchikubo

Takehiro Nakagawa

Masao Uehara

Katsuyoshi Sasagawa

Keiichi Hiyama

Yasushi Namii

Nobuyuki Matsuura

Masaru Shiraiwa

Hideyuki Shoji

N lines of line-shaped light are projected onto the object by means of a measuring light projecting lens. The light carrying the image of the object is passed through the eyepiece lens 17 in an endoscope 6 and the auxiliary lens 30 in a measuring head 11 and split into two beamlets by a beam splitter 31, with one beamlet being focused at a position coinciding with the entrance end faces of measuring light's position detecting fibers 33(l) to 33(m). The line-shaped light images of the object thus formed in positions coinciding with the entrance end faces of measuring light's position detecting fibers 33(l) to 33(m) are scanned linearly by those linearly aligned fibers as they are oscillated and driven by a fiber scanner 36. The scanned line-shaped light images are then subjected to the necessary signal processing in a signal processor circuit 35 such as to measure the three-dimensional configuration of the object.

Apparatus for measuring three-dimensional configurations

An object being frame-sequentially illuminated by beams of illumination light in different wavelength ranges is imaged by an imaging element of an electronic endoscope. A time-serial image signal is subjected to signal processing to display a color picture on a monitor screen. A relative movement between the object and the imaging element is detected by a movement detecting circuit to reduce color smear produced by the relative movement in a motion picture of the object displayed on the monitor screen.

Electronic endoscope system equipped with color smear reducing means

There is provided a frozen picture memorizing memory holding as a frozen picture image a picture image signal imaged by an electronic endoscope. By the operation of a frozen picture directing switch, whether the frozen picture is adapted to the memorizing condition or not is judged through a picture image movement detecting circuit. In case it is judged to be adapted to the memorizing condition, the picture image signal is memorized actually as a frozen picture image to obtain a clear frozen picture having little color smear and fogging.

Electronic endoscope system provided with a means of imaging frozen

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Hachioji, Japan

Akira Kusumoto