Matsushita Electronics Corporation

Jig-saw Inc.

Tsuyoshi Fujii

Masao Hayashi

Kuniaki Matsunaga

Takashi Hayashi

Go Minami

Hiroshi Tomita

Eriko Sugano

Provided is a head-mounted video presentation device which has a visible light wavelength conversion and is designed for a user having degraded sensitivity to a first wavelength band as a part of a visible light wavelength band as compared with a second wavelength band as the remaining part of the visible light wavelength band. A head-mounted video presentation device for a user having degraded sensitivity to a first wavelength band as a part of a visible light wavelength band as compared with a second wavelength band as the remaining part of the visible light wavelength band includes: an imaging unit for taking a video in a viewing direction of the user to acquire first video information; a wavelength conversion unit for converting at least a part of a color signal for at least the first wavelength band in the first video information into a color signal expressing colors in the second wavelength band, and outputting second video information based on the converted color signal; and a video presentation unit for presenting, based on the second video information, a wavelength-converted video in the viewing direction of the user, to the user.

Head mounted type video presenting device including visible light wavelength converting unit

In pressing and molding a shadow mask or the like, press-molding oil containing alkyl carbonate shown in the following Chemical Formula as an active ingredient is coated on a press mold. After pressing and molding a metallic material with the press mold, the press-molding oil is washed and removed with warm water. Alternatively, the oil is dried or thermally decomposed. As a result, less than about 10 .mu.g/cm.sup.2 oil is left as residue on the product. ##STR1## where a and b are an integer from one to six; x and y are an integer from 0 to 30; R.sup.1 and R.sup.2 are an alkyl group, cycloalkyl group, alkylphenyl group, benzyl group or alkylbenzyl group having from one to thirty carbon atoms and straight or branched alkyl chains.

Press molding oil and method of manufacturing press-molded products by

Press-molding oil and method of manufacturing press-molded products by

Growing community of inventors

Tokyo, Japan

Tsuyoshi Fujii