David H Haffner SrNew DVD grating upgrade
http://publiclab.org/profile/dhaffnersrThis is a spectrometer kit I bought from Plab about 4 months ago, I have made several modifications since then, here are some specs on how it stands now:
1) Spectrometer bandwidth = 5
2) Slit width = 0.09
3) Slit length = 19mm
4) Distance of slit to camera = 48mm
5) Cuvette distance to slit = 29mm
6) Cuvette distance to camera = 78.13mm
7) Width of DVD grating = 17.90mm
8) DVD piece used is 8.5gb - ruling density = 2770 lines/mm = 0.36mm groove spacing = 360nm
JDEPC-ov04 camera
Specs:
| Sensor Type | OV2643 | |
| Active pixel array area | 3590um * 2270um | |
| Power Supply | Core | 1.5 VDC ± 5% |
| Analog | 2.6 to 3.0 Vdc | |
| I/O | 1.70V ~3.0Vdc | |
| Temperature Range | Operation | -20°C ~ 70°C |
| Stable Image | 0°C ~ 50°C | |
| Output formats | YUV / Ycb Cr 4:2:2 ; RGB 5:6:5 / 5:5:5 ;GBR 4:4:4 ; 8/10BIT RAW RGB Data | |
| Optical Format | 1/4 inch | |
| Frame rate | 15 fps for UXGA,30fps for SVGA, 30fps for 720P,60 fps for QVGA and any lower resolution | |
| Scan mode | Progressive | |
| Maximum Exposure Interval | 1227Xtrow | |
| Gamma Correction | Programmable | |
| Pixel Size | 2.2 um x 2.2um | |
| Full resolution | 1600x 1200 pixels (UXGA) | |
| Sensor Package Dimension | 5035um x 4635um | |
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