公开(公告)号：US07345763B2

公开(公告)日：2008-03-18

申请号：US11119867

申请日：2005-05-02

Applicant: Douglas V. Baker ,  Mark A. Cargill ,  Bernard J. Berg ,  Stephen B. Rankin ,  James L. Mourey ,  Robert L. Winchester

Inventor： Douglas V. Baker ,  Mark A. Cargill ,  Bernard J. Berg ,  Stephen B. Rankin ,  James L. Mourey ,  Robert L. Winchester

IPC: G01J3/46

CPC classification number: G01J3/50 ,  G01J3/0202 ,  G01J3/0272 ,  G01J3/0283 ,  G01J3/501 ,  G01J3/524

Abstract: A color measurement system includes a hand held color measurement instrument, which may be provided with a wireless interface to a computer. The color measurement system includes a scanning guide for holding the hand held color measurement instrument in proper alignment with a color target. The scanning guide includes a calibration reference to allow convenient calibration of the hand-held color measurement instrument. The hand-held color instrument includes an illumination ring to provide visual feedback to the user. The color of the illumination ring changes in order to display a color similar to that being read by the hand-held color measurement instrument. Color management profiling of the hand held color measurement instrument illumination ring improves the color rendition capability of the illumination ring.

Abstract translation: 颜色测量系统包括手持式彩色测量仪器，其可以设置有与计算机的无线接口。 色彩测量系统包括用于将手持式颜色测量仪器保持与彩色目标正确对准的扫描引导件。 扫描指南包括校准参考，以方便校准手持式彩色测量仪器。 手持式彩色仪器包括用于向用户提供视觉反馈的照明环。 照明环的颜色发生变化，以显示类似于手持式彩色测量仪器读取的颜色。 手持式彩色测量仪器照明环的颜色管理分析提高了照明环的显色能力。

公开(公告)号：US07092097B2

公开(公告)日：2006-08-15

申请号：US11370602

申请日：2006-03-08

Applicant: Mark A. Cargill ,  Peter G. VanderJagt

Inventor： Mark A. Cargill ,  Peter G. VanderJagt

IPC: G01J3/50 ,  G01N21/27

CPC classification number: G01J3/02 ,  G01J3/0208 ,  G01J3/0286 ,  G01J3/0289 ,  G01J3/0291 ,  G01J3/50 ,  G01J3/501 ,  G01J3/524

Abstract: An LED-based color measurement instrument including an illumination system and a sensing system. The illumination system includes modulated LEDs and a temperature control system for regulating the temperature of the LEDs, thereby improving the consistency of their performance. The sensing system includes a photodiode, a transimpedance amplifier, and an integrator in the first stage to cancel the effect of ambient light on the output of the first stage. The sensing system also includes a lens system for imaging a target area of the target sample onto the photo sensor in a manner so that the product of the target area times the solid angle captured by the lens system is generally uniform over a selected range of distances, thereby reducing the positional sensitivity of the instrument with respect to the target sample.