1 Scope
This part of YY 0068 specifies the optical property requirements and test methods of rigid endoscope.
This part is applicable to the medical rigid endoscope.
2 Normative References
The following normative documents contain provisions which, through reference in this part of YY 0068, constitute provisions of this part. For dated references, subsequent amendments to (excluding corrections to), or revisions of, any of these publications do not apply. However, all parties coming to an agreement according to this part are encouraged to study whether the latest editions of these documents apply. For undated reference, the latest edition of the normative documents referred to applies.
GB/T 5702 Methods of Measuring the Color of Light Sources
GB 10810 Spectacles Lenses
GB 11244-2005 General Requirements for the Medical Endoscope and Endoscope accessories
JB/T 7403-1994 Illuminometer
JB/T 9328-1999 Resolving Power Test Target
ISO 10526:1999 CIE S 005 CIE Standard Illuminants for Colorimetry
CIE 13.3-1995 Method of Measuring and Specifying Colour Rendering Properties of Light Sources
CIE 15:2004 Colorimetry
3 Terms and Definitions
For the purposes of this Part of YY 0068, the following terms and definitions apply.
3.1
endoscope
medical instrument having viewing means, introduced into a body cavity through natural or surgically-created body opening
3.2
rigid endoscope
endoscope whose insertion portion is intended to be unyielding to natural or surgically-created body opening or other instrument channels
Foreword II
Introduction IV
1 Scope
2 Normative References
3 Terms and Definitions
4 Requirements
5 Test methods
Annex A (Normative) Determination of Field of View and Direction of View
Annex B (Normative) Determination of Angular Resolution
Annex C (Normative) Determination of Color Resolution and Color Reducibility
Annex D (Normative) Determination of Synthetical Relative Self-effect
Annex E (Normative) Determination of Unit Relative Distortion
Take the arithmetic mean value of the 3 measured consistency differences as the final result.
Annex F (Informative) Typical Values of Shape Parameter of the Evaluated Field-of-view Plane
