-
公开(公告)号:US889730A
公开(公告)日:1908-06-02
申请号:US1908421340
申请日:1908-03-16
Applicant: PENNSYLVANIA GAS GLOBE LIGHT COMPANY
Inventor: SLINACK VICTOR H
CPC classification number: G01J1/124
-
公开(公告)号:US756963A
公开(公告)日:1904-04-12
申请号:US1903177435
申请日:1903-10-17
Applicant: GEN ELECTRIC
Inventor: HOWELL JOHN W
CPC classification number: G01J1/124
-
公开(公告)号:US3644048A
公开(公告)日:1972-02-22
申请号:US3644048D
申请日:1970-06-23
Applicant: AGFA GEVAERT AG
Inventor: GUNTHER HANS , KONIGL GEORG , KORTNER HANS
Abstract: Reference light having a first color within a predetermined spectral range is combined with a colored part of the light to be measured which has passed through a filter having a second color within a spectral range complementary to the predetermined range. When the combined light assumes a third color, the brightness of the measured light is equal to the predetermined brightness of the reference light. Reflecting grid surfaces are used for deflecting the reference light into the path of the colored part of the measured light.
Abstract translation: 具有预定光谱范围内的第一颜色的参考光与已经通过具有与预定范围互补的光谱范围内的第二颜色的滤光器的被测光的有色部分组合。 当组合的光呈现第三种颜色时,所测量的光的亮度等于参考光的预定亮度。 反射栅格表面用于将参考光偏转到测量光的有色部分的路径中。
-
公开(公告)号:US3416866A
公开(公告)日:1968-12-17
申请号:US35910964
申请日:1964-04-13
Applicant: POLAROID CORP
Inventor: LAND EDWIN H , RYAN WILLIAM H
IPC: G01J1/12
-
15.
公开(公告)号:US3357230A
公开(公告)日:1967-12-12
申请号:US41703764
申请日:1964-12-09
Applicant: POLAROID CORP
Inventor: TOPAZ JEREMY M
-
公开(公告)号:US3315579A
公开(公告)日:1967-04-25
申请号:US35911464
申请日:1964-04-13
Applicant: POLAROID CORP
Inventor: LAND EDWIN H
CPC classification number: G03B17/08 , G01J1/124 , G03B7/02 , G03B9/08 , Y10T74/20012
-
公开(公告)号:US2440266A
公开(公告)日:1948-04-27
申请号:US56643144
申请日:1944-12-04
Applicant: HALL JOSEPH M
Inventor: HALL JOSEPH M
IPC: G01J1/12
CPC classification number: G01J1/124
-
公开(公告)号:US2269723A
公开(公告)日:1942-01-13
申请号:US20678938
申请日:1938-05-09
Applicant: RES ENGEINEERING COMPANY
Inventor: FELIX LEWIN
IPC: G01J1/12
CPC classification number: G01J1/124
-
公开(公告)号:US2243383A
公开(公告)日:1941-05-27
申请号:US25566839
申请日:1939-02-10
Applicant: ALOIS LEBER
Inventor: ALOIS LEBER
IPC: G01J1/12
CPC classification number: G01J1/124
-
公开(公告)号:US2151187A
公开(公告)日:1939-03-21
申请号:US14399737
申请日:1937-05-21
Applicant: CHRISTOPHER DANIEL E
Inventor: CHRISTOPHER DANIEL E
IPC: G01J1/12
CPC classification number: G01J1/124
-
-
-
-
-
-
-
-
-