Optical measuring device
First Claim
1. An optical measuring device for measuring a light beam emitted from a light source, comprising:
- a light collecting element configured to collect the light beam;
at least four light-sensing elements configured to respectfully sense light fields of different light paths of the light beam, wherein distances of the light paths between the light-sensing elements and the light source are different from each other, three of the light-sensing elements are disposed within Rayleigh length of an imaging side after the light beam passes through the light collecting element and the lens, and one of the light-sensing elements is disposed outside Rayleigh length of an imaging side after the light beam passes through the light collecting element and the lens;
a light splitting device configured to split the light beam passing through the light collecting element into split light beams, and respectively guide the split light beams to the light-sensing elements; and
at least one lens disposed between at least one of the light-sensing elements and the light collecting element, wherein the lens is configured to image the light beam passing through the light collecting element on the at least four light-sensing elements;
wherein the optical measuring device calculates optical parameters of the light beam based on measurement data of the light-sensing elements.
1 Assignment
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Accused Products
Abstract
An optical measuring device is configured to measure a light beam emitted from a light source. The optical measuring device includes a light collecting element, at least four light-sensing elements, a light splitting device, and at least one lens. The light collecting element is configured to collect the light beam. The light-sensing elements are configured to respectively sense the light fields of different light paths of the light beam. The respective distances of the light paths between the respective light-sensing elements and the light source are different from each other. The light splitting device is configured to split the light beam passing through the light collecting element and respectively guide the split light beams to the light sensing elements. The lens is disposed between at least one of the light-sensing elements and the light collecting element, and is configured to form images on the at least four light-sensing elements.
15 Citations
9 Claims
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1. An optical measuring device for measuring a light beam emitted from a light source, comprising:
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a light collecting element configured to collect the light beam; at least four light-sensing elements configured to respectfully sense light fields of different light paths of the light beam, wherein distances of the light paths between the light-sensing elements and the light source are different from each other, three of the light-sensing elements are disposed within Rayleigh length of an imaging side after the light beam passes through the light collecting element and the lens, and one of the light-sensing elements is disposed outside Rayleigh length of an imaging side after the light beam passes through the light collecting element and the lens; a light splitting device configured to split the light beam passing through the light collecting element into split light beams, and respectively guide the split light beams to the light-sensing elements; and at least one lens disposed between at least one of the light-sensing elements and the light collecting element, wherein the lens is configured to image the light beam passing through the light collecting element on the at least four light-sensing elements; wherein the optical measuring device calculates optical parameters of the light beam based on measurement data of the light-sensing elements. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification