Hermograph is back from Germany, and we're cooking up new batches of Spectrum Viewers!
Delivery will be in October 2018.
We are offering a 25% discount to advance buyers for sets of 10 or more through October 31, 2018.
viewer designed by an astronomy teacher for ease in
seeing and identifying element and molecular spectra
from gas tubes.
"One of the biggest challenges that I have
faced when using other
spectrum viewers is that the students never
know what they
are supposed to see and struggle to hold
their viewers at the
correct angle to the light source. The Classroom
Viewers alleviate both of these issues and
provide a simple
but effective classroom instruction tool.
these viewers to be much more useful and
easier to use
than models I have used in the past."
- November 2012 NSTA Science
- No longer hunt the Internet or multiple textbooks
for reference spectra--the 16 most common gas tubes
found in physics, astronomy and chemistry
labs/classes are on the Viewer!
Spectra, divided into four groups from the Periodic
Table, that are included are: Noble Gases--Helium,
Neon, Argon, Krypton, Xenon; Metals--Sodium and
Mercury; Non-Metals: Hydrogen, Nitrogen, Oxygen,
Chlorine, and Iodine; Molecules and Mixtures--Air,
Water, Carbon Dioxide.
- Extra-large viewing window, 3 inches (7.5 cm),
makes it easier for one or more students to see the
- The comparison spectra were made using the same
diffraction grating film, sharing the same scale,
resolution and light distribution as the viewed
spectrum when directions (included on both sides of
the Viewer) are followed.
- Measuring scales are approximately proportioned to
sine-theta instead of linear like most hand
spectroscopes, accommodating for the Law of
Diffraction and removing common systematic errors.
- Brightest visible line markers help eliminate
- Specifications: 5.75 x 8.5 inches (~14.5 x
21.5 cm). Comes with instructions/notes sheet.
spectroscopy in the hands of the masses at an
affordable price." - Mike Marks, Edutarium,
"After using these, my students didn't
want to use hand spectroscopes. These were
easier to use!" - D. Franklin, Mercer University
"green"? Here's a two-sided
viewer for studying local area
lighting for light and energy
efficiencies, and light
New, Version 2.0!
More realistic light spectra, better color renditions.
Useful for physics, astronomy and
environmental science courses,
teachers or informal educators.
The front side
shows 11 comparison spectra of High Pressure and
Low Pressure Sodium, Metal Halide, Mercury Vapor
with and without phosphor, Fluorescent and CFL,
and Incandescent lights, plus specialized lights
such as LEDs, Neon and "Black Light".
The obverse side has technical specifications
about different kinds of lights, their cost and
energy efficiency rankings, and a procedure on how
to determine your area's "green" level, notes
about lighting and their spectra, and a general
description about continuous, absorption and
Comes with a two-page Notes sheet.
"The analysis of spectra to determine lighting cost and
efficiency is an excellent way to integrate engineering concepts into
the high school physics curriculum as suggested by the Next Generation
Science Standards" - Jim Nelson, Santa Fe College, FL and Florida AAPT Section Representative
"...great tools for
raising awareness of just how much energy your
local lighting consumes as well as for education
in or out of the classroom." - International Dark
Sky Association E-Newsletter, August 2012
"Ooooh, I just got mine
and love, love, love it! Just what I wished
I'd invented years ago. We'll be using it
for sidewalk astronomy... " - Vivian White,
Astronomy Educator, San Francisco, CA
Prepackaged sets: 10 - $
85 64, 30 -
$ 225 169, 40 - $ 285 214
[Single Viewers, $9.50]
FREE SHIPPING for orders (USA) over $100 when
For other quantities or for reselling,
please contact us the phone number below or by
Mail: Hermograph Press LLC, 2135 Interstate Drive #130, Opelika, AL 36801 USA
30066 (Use this Form!)
Purchase Spectrum Viewers
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