Optical kit for Star’Ex LR spectroscope

Star’Ex is a project proposed by Christian Buil, following on from Sol’Ex. A dedicated website gives you all the information you need to assemble and operate this instrument. You make the parts using 3D printing (or have them made by a specialist), then assemble the instrument with the optical elements from this kit. All the optical elements needed to make a Star’Ex LR are included in this kit: slot, grating, lenses, guiding elements, etc. More information here on the Sol’Ex & Star’Ex project.

Example of a spectrum obtained with a Star’Ex LR :

Example of a spectrum obtained with a Star’Ex LR – IR :

• Resolution @650 nm: R = 650 typical with a 23-micron slit (R = lambda / d-lambda)
• Wavelength range :
  Pour le Star’Ex LR – VIS : 400 nm – 700 nm
  For StarEx LR – IR: 650 nm – 1,000 nm
• Internal reduction ratio: 1:1. Collimator and objective both have a focal length of 80 mm.

Star’Ex LR optical kit – VIS

• [OP0158] 300 tr/mm grating blazed at 500 nm
• [OP0080] Two doublets with a diameter of 12.5mm and a focal length of 50mm
• [OP0010] Mirror of 15x15mm thickness 3mm
• [SE0116] 4-position 15/19/23/35 µm multi-width slit
• [OP0176] Doublet with a diameter of 25.4mm and a focal length of 80mm
• [OP0182] Optimized doublet (VIS) with 80 mm focal length

Star’Ex LR – IR optical kit (complementary)

• [OP0167] Gratind 300 tr/mm blazed à 1000 nm
• [OP0184] Order filter 570 nm D 25mm and 2mm thick
• [OP0183] Optimized near-infrared (NIR) doublet with 80 mm focal length

Summary table of the various kits

Detailed article about Sol’Ex & Star’Ex

Sol’Ex & Star’Ex project website