Title:
SURFACE FOREIGN SUBSTANCE DETECTOR FOR TRANSPARENT OR TRANSLUCENT FILM
Document Type and Number:
WIPO Patent Application WO/2019/027143
Kind Code:
A1
Abstract:
A surface foreign substance detector for a transparent or translucent film is disclosed. The surface foreign substance detector for a transparent or translucent film, according to the present invention, comprises: an optical unit; an optical housing accommodating the optical unit therein; a light emission unit for emitting light at the film; and a film holder providing a loading surface such that the film can be loaded on an upper part thereof, and made of a light-absorbing material capable of absorbing light or reflecting the light in a predetermined ratio or less. According to the present invention, a holder supporter is manufactured by using a material capable of generating a predetermined electrostatic force or more between the holder supporter and foreign substances floating in a surrounding space so as to prevent the foreign substances floating or scattered in a surrounding work space from being moved to a film side, thereby enabling detection reliability to be improved.
Inventors:
KIM JIN HO (KR)
Application Number:
PCT/KR2018/007333
Publication Date:
February 07, 2019
Filing Date:
June 28, 2018
Export Citation:
Assignee:
JEDEX INC (KR)
International Classes:
G01N21/88; G01N21/94; G01N21/956; G02F1/13
Foreign References:
| JP2000171401A | 2000-06-23 | |||
| JP2016045039A | 2016-04-04 | |||
| KR20110024608A | 2011-03-09 | |||
| JP2000180371A | 2000-06-30 | |||
| KR101582461B1 | 2016-01-05 | |||
| KR101042143B1 | 2011-06-16 | |||
| KR101582461B1 | 2016-01-05 |
Other References:
See also references of EP 3663746A4
Attorney, Agent or Firm:
INTERBRAIN PATENT&LAW FIRM (KR)
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