1. INTRODUCTION
2. DATA ANALYSIS
2.1. Survey Observation and Image Processing
2.2. Weak Lensing Distortion Analysis
2.3. Photometry and Background Selection
2.4. Mean Lensing Depth
2.5. Luminous Member Galaxies
2.6. Model of LSS Lensing
3. WEAK-LENSING ANALYSIS FOR SUBHALOS
3.1. Projected Distributions of Mass and Baryons
3.2. Selection and Mass Measurements of Subhalos
3.3. Stacked Lensing Analysis for Subhalos
3.4. Systematic Errors
4. CLUSTER GALAXY - GALAXY LENSING ANALYSIS
5. MAIN CLUSTER MASS MEASUREMENT
6. DISCUSSION
6.1. Subhalo Mass Function
6.2. Correlation between Subhalo Masses and Truncation Radii
6.3. Radial Dependence of Subhalo Properties
6.4. Surface Number Density for Subhalos
6.5. Mass-to-light Ratio
6.6. Future Studies
7. CONCLUSIONS