Schileren instrument for the measurement of body surface appearance

Application Number: 00107371
Application Date: 2000.05.12
Publication Number: 1271086
Publication Date: 2000.10.25
Priority Information:
International: G01B11/16;G01B11/24
Applicant(s) Name: Qinghua Univ.
Inventor(s) Name: Wang Baixiong;Liu Xingzhan;Luo Xiuzhi
Patent Agency Code: 11201
Patent Agent: liao yuanqiu
Abstract The schlieren instrument includes a light source assembly and an optical imaging assembly; the light source assembly consists of a laser, a micropore filter and a beam expanding lens; and the optical imaging assembly consists of a spectroscope, a reflector, a collimating lens, a spatial filter and a CCD video camera, with the spatial filter being a two-dimensional Langchi grating. The present invention obtain the profile data in both x and y directions, has simplified struture and can be used to measure surface appearance of both static object and varying object.