As the geometric condition of illumination and light reception for transparent object, JIS Z8722 standard recommends the following 4 cases.
[Figure. 5] Geometric condition of illumination and light reception for transparent object (e)
![[Figure. 5] Geometric condition of illumination and light reception for transparent object (e)](images/img_products20.jpg)
[Figure. 6] Geometric condition of illumination and light reception for transparent object (f)
![[Figure. 6] Geometric condition of illumination and light reception for transparent object (f)](images/img_products21.jpg)
[Figure. 7] Geometric condition of illumination and light reception for transparent object (g)
![[Figure. 7] Geometric condition of illumination and light reception for transparent object (g)](images/img_products22.jpg)
[Figure. 8] Geometric condition of illumination and light reception for transparent object (h)
![[Figure. 8] Geometric condition of illumination and light reception for transparent object (h)](images/img_products23.jpg)