They're manufacturing a 'modern' PC Box Spot
http://www.marumo.co.jp/pdf/spot/08_t1_df_bnq_fpq.pdf
And improving on Plano Convex and Fresnel lenses
http://www.marumo.co.jp/pdf/spot/17_spotlens.pdf
And making their own ultra-modern Ellipsoidal
http://www.marumo.co.jp/pdf/spot/09_rikuri2.pdf
While it's doubtful I'll ever get to play with any of this, I enjoy knowing that the Japanese never gave up on the PC or the Fresnel.
http://www.marumo.co.jp/pdf/spot/08_t1_df_bnq_fpq.pdf
And improving on Plano Convex and Fresnel lenses
http://www.marumo.co.jp/pdf/spot/17_spotlens.pdf
And making their own ultra-modern Ellipsoidal
http://www.marumo.co.jp/pdf/spot/09_rikuri2.pdf
While it's doubtful I'll ever get to play with any of this, I enjoy knowing that the Japanese never gave up on the PC or the Fresnel.