公开(公告)号：AU531971B2

公开(公告)日：1983-09-15

申请号：AU7983582

申请日：1982-01-26

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J3/12 ,  G01N21/64 ,  G02B5/22 ,  G02B5/28 ,  G01J3/48

Abstract: Method and means useful in reflectance measurement is provided wherein radiation of one wavelength is separated from radiation of a different wavelength by the use of a composite of at least two components, one of which is absorptive of said one wavelength radiation and is highly transmissive of said other wavelength radiation, and the other of which is reflective of radiation of both of said wavelengths. The method and means are particularly adapted for use in fluorescent radiation measurement to prevent high intensity residual incident excitation radiation from interfering with measurement of the relatively low intensity fluorescent radiation.

公开(公告)号：CA1136886A

公开(公告)日：1982-12-07

申请号：CA356613

申请日：1980-07-21

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J3/10 ,  G01J3/42 ,  G01N21/01 ,  G01N21/25 ,  G01N21/27 ,  G01J3/12

Abstract: Apparatus for measuring transmitted light is described. The apparatus comprises a spectrophotometer which includes a light source; first and second diffusion chambers; a cuvette chamber and photodetection means. The apparatus also includes light transmitting channels through which light can pass from said source to the first diffusion chamber, from the first diffusion chamber through the cuvette chamber to the second diffusion chamber, and from the second diffusion chamber to the photodetector means. In the preferred embodiment the first and second diffusion chambers are light diffusing integrating spheres, and a filter is present in the light transmission channel between the light source and first diffusion chamber.

公开(公告)号：DE2812872A1

公开(公告)日：1978-09-28

申请号：DE2812872

申请日：1978-03-23

Applicant: MILES LAB

Inventor： KRAMER DONALD L ,  WHITE JAMES A

IPC: G01J3/10 ,  G01J3/42 ,  G01J3/51 ,  G01N21/25 ,  G01N21/27 ,  G01N21/48 ,  G01N21/24

Abstract: Apparatus for measuring reflected or transmitted light is described. The apparatus comprises filter type spectrophotometer having a wavelength range of from about 200 nm (nanometers) to about 1,100 nm which includes a sample illuminating light source capable of producing an extremely intense light of short duration; light diffusing means; a light filter for transmission of a selected wave-length; at least two independent light sensing means; and separate means defining light transmission paths for the passage of light from the light source to one light sensing means and from the illuminated sample to the other light sensing means.

公开(公告)号：AU552719B2

公开(公告)日：1986-06-19

申请号：AU2050883

申请日：1983-10-24

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J1/58 ,  G01J3/10 ,  G01N21/25 ,  G01J1/08 ,  G01J1/10 ,  G01J1/42 ,  G01N21/01 ,  H05B33/02 ,  H05B33/14

公开(公告)号：CA1202504A

公开(公告)日：1986-04-01

申请号：CA443194

申请日：1983-12-13

Applicant: MILES LAB

Inventor： KRAMER DONALD L ,  WHITE JAMES A

IPC: G01J3/30 ,  G01J1/04 ,  G01J1/42 ,  H03M1/00 ,  G01N21/27

Abstract: A method and apparatus for converting spectral and light intensity values directly to digital data, utilizes an image sensor having at least one row of sensor elements, each element including a light sensitive capacitor and an access switch and which changes state and produces a corresponding digital output signal when a predetermined charge threshold is exceeded by the capacitor whose charge is a function of light intensity of an illuminating light source. The image sensor is illuminated with a reference light source having a known intensity through a neutral density gradient filter and the digital output of the sensor is examined for the row to obtain digital data corresponding to the number of state changes in the row. The image sensor is then illuminated with an unknown light source through the filter and the digital output of the sensor for the row is examined to obtain digital data corresponding to the number of state changes in the row. The intensity of the unknown light source is determined in digital form for the row as a function of the digital data and the known intensity of the reference light source.

公开(公告)号：CA1165586A

公开(公告)日：1984-04-17

申请号：CA390260

申请日：1981-11-17

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J3/12 ,  G01N21/64 ,  G02B5/22 ,  G02B5/28 ,  G01J5/58 ,  G01J9/00

Abstract: Method and means useful in reflectance measurement is provided wherein radiation of one wavelength is separated from radiation of a different wavelength by the use of a composite of at least two components, one of which is absorptive of said one wavelength radiation and is highly transmissive of said other wavelength radiation, and the other of which is reflective of radiation of both of said wavelengths. The method and means are particularly adapted for use in fluorescent radiation measurement to prevent high intensity residual. incident excitation radiation from interfering with measurement of the relatively low intensity fluorescent radiation.

公开(公告)号：HU179543B

公开(公告)日：1982-11-29

申请号：HUMI000627

申请日：1978-01-25

Applicant: MILES LAB

Inventor： KRAMER DONALD L ,  WHITE JAMES A

IPC: G01J3/10 ,  G01J3/42 ,  G01J3/51 ,  G01N21/25 ,  G01N21/27 ,  G01J3/30 ,  G01N21/17

Abstract: Apparatus for measuring reflected or transmitted light is described. The apparatus comprises filter type spectrophotometer having a wavelength range of from about 200 nm (nanometers) to about 1,100 nm which includes a sample illuminating light source capable of producing an extremely intense light of short duration; light diffusing means; a light filter for transmission of a selected wave-length; at least two independent light sensing means; and separate means defining light transmission paths for the passage of light from the light source to one light sensing means and from the illuminated sample to the other light sensing means.

公开(公告)号：AU7983582A

公开(公告)日：1982-10-21

申请号：AU7983582

申请日：1982-01-26

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J3/12 ,  G01N21/64 ,  G02B5/22 ,  G02B5/28 ,  G01J3/48

Abstract: Method and means useful in reflectance measurement is provided wherein radiation of one wavelength is separated from radiation of a different wavelength by the use of a composite of at least two components, one of which is absorptive of said one wavelength radiation and is highly transmissive of said other wavelength radiation, and the other of which is reflective of radiation of both of said wavelengths. The method and means are particularly adapted for use in fluorescent radiation measurement to prevent high intensity residual incident excitation radiation from interfering with measurement of the relatively low intensity fluorescent radiation.

公开(公告)号：AU2050883A

公开(公告)日：1984-08-02

申请号：AU2050883

申请日：1983-10-24

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01J1/58 ,  G01J3/10 ,  G01N21/25 ,  G01J1/08 ,  G01J1/10 ,  G01J1/42 ,  G01N21/01 ,  H05B33/02 ,  H05B33/14

公开(公告)号：AU533089B2

公开(公告)日：1983-10-27

申请号：AU7690981

申请日：1981-10-28

Applicant: MILES LAB

Inventor： KRAMER DONALD L

IPC: G01N21/35 ,  A61M5/36 ,  G01N9/04 ,  G01N15/00 ,  G01N15/10 ,  G01N21/59 ,  G01V8/10 ,  G01N21/85 ,  G01N21/89

Abstract: A method and apparatus for sensing the presence of bubbles in a liquid wherein radiation is directed through said liquid toward a radiation responsive sensor and the differential between the response of the sensor when a bubble is not present in the radiation path and the response thereof when a bubble is present in the radiation path is markedly increased by limitation of the radiation which can reach said sensor to wavelengths strongly absorbed by said liquid.